CN113457048B

CN113457048B - Starting devices and fire extinguishing equipment

Info

Publication number: CN113457048B
Application number: CN202110864148.XA
Authority: CN
Inventors: 梁荣; 乔顺平
Original assignee: Beijing Century Fire Protection New Technology Ltd By Share Ltd
Current assignee: Beijing Century Fire Protection New Technology Ltd By Share Ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2025-01-14
Anticipated expiration: 2041-07-29
Also published as: CN113457048A

Abstract

The present invention discloses a starting device and a fire extinguishing device. The starting device includes: a shell, the shell is provided with at least one nozzle, and a sealed cavity is provided in the shell; a gas-generating device, including an integrated sealed container and a driving medium sealed in the sealed container, the sealed container is connected to the shell; a triggering device, located outside the gas-generating device, the triggering device includes a striker and an initiator, the striker is arranged corresponding to the sealed container, and is used to puncture the sealed container so that the driving medium sprays out of the sealed container and forms a gas; one end of the initiator is located in the sealed cavity, and the other end extends through the shell to the outside of the shell, and is used to increase the air pressure in the sealed cavity; the sealed cavity and the striker are arranged correspondingly, and are used to use the increased air pressure to directly or indirectly drive the striker to move in a direction close to the sealed container. In this way, the fire extinguishing agent does not need to be stored under pressure, which fundamentally solves the pressure leakage problem of the existing pressure storage type fire extinguishing equipment, which not only saves the maintenance cost of regular pressurization, but also improves the reliability of the use of the fire extinguishing equipment.

Description

Starting device and fire extinguishing apparatus

Technical Field

The invention relates to the technical field of fire extinguishing equipment, in particular to a starting device and fire extinguishing equipment comprising the same.

Background

In order to spray the fire extinguishing agent to extinguish fire, the pressure storage type fire extinguishing equipment needs to fill a certain amount of gas with pressure into the container, and the pressure of the gas is generally different from 1.2MPa to 20 MPa. The whole fire-extinguishing equipment consists of a fire-extinguishing agent storage container, a container valve, a pressure gauge, a fire-extinguishing agent jet orifice, a signal feedback device and other parts, and the pressure-storage fire-extinguishing equipment is stored under pressure for a long time, so that the joints of the parts become pressure leakage points. Once the fire extinguishing equipment leaks, the fire extinguishing agent cannot be normally sprayed out. Therefore, the pressure storage type fire extinguishing apparatus requires regular maintenance and pressurization. If the maintenance is not timely, a fire, especially public transportation, occurs at the moment, and maintenance and pressurization are required to be started to a station. If the pressure is released during driving, fire cannot be extinguished, the group death and group injury can be caused, and the consequences are serious.

Disclosure of Invention

The embodiment of the invention provides a starting device capable of being used for fire extinguishing equipment, which is provided with a gas generating device, so that the fire extinguishing equipment does not need to charge pressurized gas into a fire extinguishing agent storage container, the problem of pressure leakage of the pressure storage type fire extinguishing equipment is fundamentally solved, the maintenance cost of pressurization is reduced, and the use reliability of the fire extinguishing equipment is improved.

In order to achieve the above purpose, the embodiment of the invention provides a starting device, which comprises a shell, a gas generating device and an initiating device, wherein the shell is provided with at least one nozzle, a sealing cavity is arranged in the shell, the gas generating device comprises an integrated sealing container and a driving medium sealed in the sealing container, the sealing container is connected with the shell, the initiating device is positioned outside the gas generating device and comprises a firing pin and an initiator, the firing pin is correspondingly arranged with the sealing container and is used for piercing the sealing container so that the driving medium ejects the sealing container and forms gas, one end of the initiator is positioned in the sealing cavity, the other end of the initiator extends out of the shell through the shell, the initiator is used for raising the pressure of the sealing cavity, and the sealing cavity is correspondingly arranged with the firing pin and is used for directly or indirectly driving the firing pin to move towards the direction close to the sealing container by utilizing the raised pressure so that the firing pin pierces the sealing container.

On the basis of the technical scheme, the invention can be improved as follows.

In an exemplary embodiment, a piston is disposed in the housing, the piston is in sliding fit with the housing and encloses the sealing cavity with the housing, the firing pin is fixedly connected with the piston, and the initiator is used for raising the air pressure of the sealing cavity so as to drive the piston to drive the firing pin to move towards a direction approaching to the sealing container.

In one exemplary embodiment, the initiator comprises an electrical initiator comprising a resistor and a connection wire connecting the resistor, the resistor being located within the sealed cavity, the connection wire extending through the housing to outside the housing, and/or the initiator comprises a thermal initiator.

In one illustrative embodiment, the housing includes a shell having a first mounting cavity, the striker and the piston being located within the first mounting cavity, the first mounting cavity having an open end, and a sealing structure coupled to the shell and sealing the open end of the first mounting cavity, the initiator passing through the sealing structure, a space between the sealing structure and the piston forming the sealing cavity.

In one exemplary embodiment, the sealing structure comprises a first cover connected with the shell and arranged at the open end of the first mounting cavity, and a sealing plug at least partially positioned in the first mounting cavity and abutted against the first cover, wherein the space between the sealing plug and the piston forms the sealing cavity.

In one illustrative embodiment, the first mounting cavity includes a mounting groove for mounting the first cap and the sealing plug, and a sliding channel communicating with the mounting groove and having a cross-sectional area smaller than that of the mounting groove such that a support surface is formed between the sliding channel and the mounting groove, the sealing plug abutting the support surface, the piston being located within and in sliding engagement with the sliding channel.

In an exemplary embodiment, the first cover is provided with a limit groove, a part of the sealing plug is limited in the limit groove, and the initiator penetrates through the sealing plug and the first cover.

In one illustrative embodiment, the housing is provided with a mounting hole and at least one gas passing channel, the sealed container comprises a head part and a body part, the head part is mounted in the mounting hole, the head part is arranged corresponding to the firing pin, the gas passing channel is communicated with the mounting hole, and one end of the gas passing channel penetrates through the housing and is used for conveying gas formed by the driving medium.

In an exemplary embodiment, the housing includes a housing and a support seat, a second mounting cavity is provided in the housing, the support seat is mounted in the second mounting cavity, and the mounting hole and the gas passing channel are provided on the support seat.

In one exemplary embodiment, the starting device further comprises a first sealing membrane, wherein the first sealing membrane is arranged in the second mounting cavity and is positioned between the firing pin and the sealing container, and the first sealing membrane is abutted against one end, close to the firing pin, of the supporting seat.

In an exemplary embodiment, the housing is provided with at least one ejection channel, the ejection channel is communicated with the nozzle, and the starting device further comprises a second sealing membrane, wherein the second sealing membrane is arranged corresponding to the nozzle and is used for disconnecting the ejection channel from the nozzle.

In one illustrative embodiment, the activation device further includes a siphon tube fixedly connected to the housing and in communication with the ejection channel.

In an exemplary embodiment, the casing includes shell and injection structure, be equipped with in the shell and be used for installing the third installation cavity of injection structure, the one end of third installation cavity opens and sets up, the other end of third installation cavity with the blowout passageway intercommunication, the spout is established on the injection structure, the second sealing membrane is established between the blowout passageway with the injection structure.

In one illustrative embodiment, the spray structure includes a second cover disposed at an open end of the third mounting cavity and abutting against the second sealing membrane, the second cover having a through hole, and a nozzle mounted at the through hole and in communication with the third mounting cavity, the nozzle being disposed on the nozzle.

In an exemplary embodiment, the driving medium includes at least one of a gaseous medium, a liquid medium, and a solid medium.

The embodiment of the invention also provides fire extinguishing equipment, which comprises a fire extinguishing agent storage container and an actuating device, wherein the fire extinguishing agent storage container is filled with fire extinguishing agent, the shell of the actuating device is connected with the fire extinguishing agent storage container, the gas generating device of the actuating device is used for conveying gas for driving the fire extinguishing agent to be sprayed into the fire extinguishing agent storage container, and the fire extinguishing agent nozzle of the actuating device is arranged to be capable of being communicated with the fire extinguishing agent storage container.

According to the starting device and the fire extinguishing equipment provided by the embodiment of the invention, the driving medium is packaged in the integrated sealed container, and when fire is required to be extinguished, the sealed container can be opened through the triggering device, so that the driving medium is sprayed out of the sealed container to form gas for driving the fire extinguishing agent to be sprayed out, and the fire extinguishing agent is sprayed out under the action of pressure to extinguish the fire. Therefore, the fire extinguishing agent does not need to be stored under pressure, thus fundamentally solving the problem of pressure leakage of the existing pressure storage type fire extinguishing equipment, saving the maintenance cost of periodical pressurization, improving the use reliability of the fire extinguishing equipment and saving a pressure gauge.

The sealing container of the gas generating device is of an integrated structure, is a sealed whole, is a complete component, has no structures such as a sealing ring, sealing glue, a sealing cover, a sealing bolt and the like, and can be independently stored, so that the problem of pressure leakage does not exist, and a driving medium can be stably sealed in the sealing container and cannot leak.

In addition, the existing non-pressure storage type fire extinguishing equipment is characterized in that an initiating device is arranged in a gas generating device, and the gas generating device is triggered to spray gas in a mode of an electric initiator or a thermal initiator, and the gas generating device is a initiating explosive device and cannot be used for gas fire extinguishing equipment, so that the non-pressure storage type fire extinguishing equipment is only suitable for dry powder fire extinguishing equipment. The starting device provided by the scheme is used for placing the initiating device outside the gas generating device, and the gas generating device is triggered to generate gas in a mode of opening the sealed container to enable the sealed container to release pressure, and the gas generating device is a non-initiating explosive device, so that the starting device can be suitable for a dry powder fire extinguishing device and also can be suitable for a gas fire extinguishing device and a liquid fire extinguishing device, the range of non-pressure storage type fire extinguishing equipment is greatly expanded, and the pressure release problem existing in the field of pressure storage type fire extinguishing equipment for many years is solved.

In addition, compared with the existing non-pressure storage type dry powder fire extinguishing equipment, the starting device adopting the scheme can avoid the condition that the dry powder explodes due to improper ignition, and simultaneously reduce the risks in transportation, storage and use of initiating explosive devices, thereby avoiding the potential safety hazard caused by the explosion of the fire extinguishing equipment and simultaneously reducing the management risk of the initiating explosive devices. Compared with the existing pressure storage type gas fire-extinguishing equipment, the starting device adopting the scheme can change the pressure storage type gas fire-extinguishing equipment into non-pressure storage type gas fire-extinguishing equipment, so that the problem of pressure leakage of the gas fire-extinguishing equipment is fundamentally solved, and the fire-extinguishing reliability of the gas fire-extinguishing equipment is improved.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate and do not limit the application.

FIG. 1 is a schematic diagram of a starting device according to an embodiment of the present invention;

FIG. 2 is a schematic view of the gas-generating apparatus of FIG. 1;

fig. 3 is a schematic structural view of a fire extinguishing apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic view of an actuating device according to another embodiment of the present invention;

FIG. 5 is a schematic view of the gas-generating apparatus of FIG. 4;

fig. 6 is a schematic view of a fire extinguishing apparatus according to another embodiment of the present invention.

Reference numerals in fig. 1 to 3 are as follows:

100 starting the device;

1a shell, 11 a shell, 111 a first mounting cavity, 1111 a mounting groove, 1112 a sliding channel, 1113 a sealing cavity, 1114 a supporting surface, 112 a second mounting cavity, 113 a third mounting cavity, 114 a spraying channel, 12 a sealing structure, 121 a first cover, 1211 a limiting groove, 122 a sealing plug, 13a supporting seat, 131 a mounting hole, 132 a gas passing channel, 141 a first sealing membrane, 142 a second sealing membrane, 15a spraying structure, 151 a nozzle, 1511 an input channel, 1512 an output channel, 1513 a nozzle, 152 a second cover, 16 a piston;

2 gas generating device, 21 sealing container, 211 head, 212 body, 22 driving medium;

3 initiating means, 31 firing pin, 32 initiator, 321 resistor, 322 connecting wire;

4 siphon tube;

200 fire extinguishing apparatus, 210 fire extinguishing agent storage container, 220 fire extinguishing agent.

Reference numerals in fig. 4 to 6 are as follows:

100 starting the device;

100' starting up the device;

1 'shell, 11' shell, 111 'first installation cavity, 1111' sealing cavity, 112 'second installation cavity, 113' third installation cavity, 114 'fourth installation cavity, 115' spout, 116 'ejection channel, 117' avoidance cavity, 12 'sealing plug, 13' support seat, 131 'installation hole, 132' gas passing channel, 133 'avoidance hole, 134' stop surface, 14 'sealing cover, 141' limit slot;

2' gas generating means, 21' sealed container, 211' head, 212' body, 22' driving medium;

3' initiating device, 31' striker, 311' sliding portion, 3111' end plate, 3112' side closure, 3113' seal groove, 312' needle penetration, 3121' transition channel, 32' initiator, 321' resistor, 322' tie line;

4' sealing valve, 41' limit boss, 42' limit groove;

A 5' siphon;

6' an elastic member;

200', 210' fire extinguishing agent storage vessel, 220' fire extinguishing agent.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail hereinafter with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be arbitrarily combined with each other.

Example 1

As shown in fig. 1, one embodiment of the present invention provides an activation device 100. The starting device 100 comprises a housing 1, a gas generating device 2 and an initiating device 3.

Specifically, the housing 1 is provided with at least one nozzle 1513, and a seal cavity 1113 is provided in the housing 1. As shown in fig. 2, the gas generating apparatus 2 includes a one-piece sealed container 21 and a driving medium 22 enclosed in the sealed container 21. The sealed container 21 is connected to the housing 1. The initiating device 3 is located outside the gas generating device 2. The triggering device 3 comprises a striker 31 and an initiator 32. The striker 31 is provided corresponding to the sealed container 21, and pierces the sealed container 21 to cause the driving medium 22 to eject the sealed container 21 and form a gas. One end of the initiator 32 is located in the sealed cavity 1113, the other end of the initiator 32 extends through the housing 1 to the outside of the housing 1, and the initiator 32 is used to raise the air pressure in the sealed cavity 1113. The seal chamber 1113 is provided in correspondence with the striker 31 for directly or indirectly driving the striker 31 to move in a direction approaching the seal case 21 by the increased air pressure so that the striker 31 pierces the seal case 21.

According to the starting device 100 provided by the embodiment of the invention, the driving medium 22 is packaged in the integrated sealed container 21, and when fire is required to be extinguished, the sealed container 21 can be opened through the triggering device 3, so that the driving medium 22 is sprayed out of the sealed container 21 and forms gas capable of driving the fire extinguishing agent 220 to be sprayed out, and the gas can enter the fire extinguishing agent storage container 210 to enable the fire extinguishing agent storage container 210 to be rapidly pressurized, so that the fire extinguishing agent 220 is sprayed out to extinguish the fire under the action of pressure. In this way, the fire extinguishing agent 220 does not need to be stored under pressure, thus fundamentally solving the problem of pressure leakage of the existing pressure storage type fire extinguishing equipment, saving the maintenance cost of periodical pressurization and improving the use reliability of the fire extinguishing equipment 200.

Specifically, the starting device 100 includes a housing 1, a gas generating device 2, and an initiating device 3. The housing 1 is provided with at least one nozzle 1513, the nozzle 1513 being arranged to be capable of communicating with the fire extinguishing agent storage container 210 so that the fire extinguishing agent 220 in the fire extinguishing agent storage container 210 can be ejected through at least the nozzle 1513 of the activation device 100. The number of the nozzles 1513 may be one or more, and a plurality of nozzles 1513 is advantageous for improving the fire extinguishing efficiency.

As shown in fig. 2, the gas generating apparatus 2 is a non-initiating explosive device, and specifically includes a sealed container 21 and a driving medium 22. The sealed container 21 is of an integral structure, and the driving medium 22 is stored in the sealed container 21. When a fire needs to be extinguished, the sealed container 21 can be opened through the triggering device 3, and pressure is quickly released when the sealed container 21 is opened, so that the driving medium 22 is sprayed out in a gas form, the air pressure in the fire extinguishing agent storage container 210 is quickly increased, and the fire extinguishing agent 220 is driven to be sprayed out for extinguishing.

In this way, the fire extinguishing agent 220 is not required to be stored under pressure, and can be sprayed out only by quickly pressurizing the gas generating device 2 when the fire extinguishing agent is used, so that the problem that the fire extinguishing device 200 cannot normally spray the fire extinguishing agent 220 due to pressure leakage of the existing pressure storage type fire extinguishing device is solved, the maintenance cost of periodical pressurizing is saved, and meanwhile, the pressure gauge can be omitted.

The sealing container 21 of the gas generating device 2 is an integral sealing structure, is a complete component, has no sealing ring, sealing glue, sealing cover, sealing bolt and other structures, and can be independently stored, as shown in fig. 2, so that the problem of pressure leakage does not exist, and the driving medium 22 can be stably sealed in the sealing container 21 without leakage. The shape of the sealed container 21 is not limited, and for example, the cross section of the sealed container 21 may be circular, elliptical, rectangular, square, triangular, or the like. The sealed container 21 may be a metal container.

The amount of the gas ejected from the gas generating apparatus 2 may be small or large, and the ejection time may be long or short, and may be appropriately selected according to the amount of the driving medium 22.

In addition, the existing non-pressure-storage type fire extinguishing equipment is characterized in that the triggering device 3 is arranged in the gas generating device 2, and the gas generating device 2 is triggered to spray gas in an electric triggering or thermal triggering mode, and because the gas generating device 2 adopted by the existing non-pressure-storage type fire extinguishing equipment is an initiating explosive device, when the triggering device 3 triggers the gas generating device 2, high temperature of hundreds of ℃ is instantaneously generated. The gas can explode when encountering high temperature, so the gas can not be used for gas fire-extinguishing equipment, and can only be suitable for dry powder fire-extinguishing equipment. The starting device 100 provided by the scheme is characterized in that the triggering device 3 is arranged outside the gas generating device 2, and the gas generating device 2 is triggered to generate gas in a mode of opening the sealed container 21 to enable the sealed container 21 to release pressure, so that the starting device is not only applicable to a dry powder fire extinguishing device, but also applicable to a gas fire extinguishing device and a liquid fire extinguishing device, the range of non-pressure storage type fire extinguishing equipment is greatly expanded, and the pressure release problem existing in the field of pressure storage type fire extinguishing equipment for many years is solved.

In addition, compared with the existing non-pressure storage type dry powder fire extinguishing equipment, the starting device 100 can avoid the condition that the dry powder explodes due to improper ignition initiation, thereby avoiding potential safety hazards caused by the explosion of the fire extinguishing equipment 200. Compared with the existing pressure storage type gas fire-extinguishing equipment, the starting device 100 of the scheme can change the pressure storage type gas fire-extinguishing equipment into non-pressure storage type gas fire-extinguishing equipment, so that the problem of pressure leakage of the gas fire-extinguishing equipment is fundamentally solved, and the fire-extinguishing reliability of the gas fire-extinguishing equipment is improved.

Of course, the starting device provided by the embodiment of the invention not only can be used for fire extinguishing equipment, but also can be widely applied to pressure equipment (with a pressure container) in various fields of national economy such as energy, traffic, metallurgy, electric power and communication, and the existing pressure equipment can be converted into non-pressure storage equipment, so that the pressure relief problem puzzling the industry for many years is solved, and effective guarantee is provided for protecting the safety of national property and people.

When the activation device 100 is used in other equipment, the spout 1513 is used to eject the substance in the container of the other equipment, and the driving medium 22 in the gas generating device 2 ejects the sealed container 21 and forms a gas for driving the substance in the container of the other equipment.

As shown in fig. 1, the initiating device 3 includes a striker 31 and an initiator 32. The initiator 32 is used to drive the movement of the striker 31. The striker 31 can quickly pierce the sealed container 21 with the tip portion, and no spark is generated, so that the use is safe and the opening efficiency is high.

Further, as shown in fig. 1, a seal cavity 1113 is provided in the housing 1, and one end of the initiator 32 is located in the seal cavity 1113. When the end of the initiator 32 outside the seal cavity 1113 is triggered, the initiator 32 can trigger the air pressure in the seal cavity 1113 to rise, and the air pressure raised in the seal cavity 1113 can directly or indirectly act on the striker 31, so as to directly or indirectly drive the striker 31 to move, and the striker 31 pierces the sealed container 21. This avoids the direct insertion of the initiator 32 into the sealed container 21 to cause the gas-generating apparatus 2 to generate gas by initiating combustion or explosion of the driving medium 22, thereby avoiding the use of an initiating explosive device as the gas-generating apparatus 2.

Of course, the initiator 3 is not limited to the above-described scheme. For example, the triggering device may include a knife and a motor that drives the knife to move to cause the knife to cut the sealed container and cause the sealed container to be opened, or the triggering device may include a compact electric drill by which the sealed container is opened.

In an exemplary embodiment, as shown in fig. 1, a piston 16 is provided within the housing 1. The piston 16 is slidably engaged with the housing 1 and encloses a seal cavity 1113 with the housing 1. The striker 31 is fixedly connected to the piston 16. The initiator 32 is used to raise the air pressure in the seal cavity 1113 to drive the plunger 16 to move the striker 31 in a direction approaching the sealed container 21.

In this embodiment, the initiator 32 is specifically configured to raise the air pressure in the seal cavity 1113, thereby utilizing the raised air pressure to drive the movement of the piston 16. Since the plunger 16 is fixedly connected with the striker 31, the plunger 16 can drive the striker 31 to move synchronously. This corresponds to the indirect driving of the striker 31 in a direction approaching the airtight container 21 by the air pressure raised by the airtight chamber 1113.

Of course, when the striker 31 and the housing 1 define the sealing chamber 1113, the striker 31 may be directly driven to move in a direction approaching the sealing container 21 by the air pressure raised by the sealing chamber 1113.

The use of the plunger 16 to move the striker 31 is advantageous in simplifying the structure of the striker 31 and improving the sealing performance of the sealing chamber 1113 as compared with the direct driving of the striker 31.

At least one sealing ring can be sleeved between the piston 16 and the shell 1 to further improve the sealing performance of the sealing cavity 1113. Further, a sealing groove for mounting a sealing ring may be provided on the outer side wall of the piston 16, respectively.

The striker 31 and the piston 16 may be fixedly connected by interference fit, over-molding, or the like.

In one illustrative embodiment, the initiator 32 comprises an electrical initiator. As shown in fig. 1, the electric initiator includes a resistor 321 and a connection wire 322 connecting the resistor 321, the resistor 321 being located in the sealed cavity 1113, the connection wire 322 extending through the housing 1 to the outside of the housing 1.

In another illustrative embodiment (not shown), the initiator 32 comprises a thermal initiator.

In yet another exemplary embodiment (not shown), the initiator 32 includes both the electrical and thermal initiators described above.

The initiator 32 may be an electric initiator, and by connecting to a power source, the resistor 321 heats up, so that the air pressure in the sealing cavity 1113 increases, and the striker 31 is triggered to move to open the sealed container 21. The electric initiator has three indexes of starting current, safety current and resistance 321 value. The three indexes meet the following relations that the safety current is smaller than the starting current, the resistor 321 cannot generate heat after the current is electrified for five minutes in the safety current index, the resistor 321 generates heat after the current reaches or exceeds the starting current, the smaller the value of the resistor 321 is, the larger the current is, the larger the value of the resistor 321 is, the smaller the current is, and the safety current, the starting current and the value of the resistor 321 can be set according to requirements.

The initiator 32 may also be a thermal initiator, which includes a heat-sensitive element that is sensitive to an external temperature, and when a fire occurs, the heat-sensitive element can sense that the external temperature rises to generate heat, so that the air pressure of the sealing cavity 1113 rises, and then the movement of the striker 31 is automatically initiated to open the sealing container 21.

Of course, the initiator 32 may also include both an electric initiator and a thermal initiator, so that the fire extinguishing device may be started manually or automatically, thereby effectively preventing the risk caused by the failure of the fire extinguishing device to start.

In one illustrative embodiment, as shown in FIG. 1, the housing 1 includes an outer shell 11 and a sealing structure 12. Wherein the housing 11 is provided with a first mounting cavity 111. The striker 31 and the piston 16 are located within the first mounting cavity 111. The first mounting cavity 111 is open at one end. A sealing structure 12 is connected to the housing 11 and seals the open end of the first mounting cavity 111. An initiator 32 is disposed through the seal structure 12. The space between the seal structure 12 and the piston 16 forms a seal cavity 1113.

The shell 1 is split into a plurality of parts such as the shell 11 and the sealing structure 12, which is beneficial to reducing the processing difficulty of each part, is convenient for reasonably selecting the materials of each part according to the needs, and is convenient for assembling the parts in the shell 1, so that the structure of the starting device 100 is optimized, and the assembling difficulty of the starting device 100 is reduced.

In addition, the sealing structure 12 and the piston 16 define the sealing cavity 1113 in the housing 11, and the sealing structure 12 and the piston 16 can seal both ends of the sealing cavity 1113, so that it is beneficial to improve the sealing reliability of the sealing cavity 1113.

The housing 11 may be a metal housing 11, and the piston 16 may be a silica gel piston 16 or a rubber piston 16. Further, the striker 31 may be made of a metal member having a high hardness to facilitate rapid piercing of the sealed container 21.

In an exemplary embodiment, as shown in FIG. 1, the sealing structure 12 includes a first cap 121 and a sealing plug 122. Wherein the first cover 121 is coupled to the housing 11 and covers the open end of the first mounting chamber 111. The sealing plug 122 is at least partially located within the first mounting cavity 111 and abuts the first cover 121. The space between the sealing plug 122 and the piston 16 forms a sealing chamber 1113.

The sealing structure 12 comprises a first cover 121 and a sealing plug 122. The sealing plug 122 and the piston 16 define a sealing cavity 1113 in the housing 11, and the sealing plug 122 and the piston 16 can seal both ends of the sealing cavity 1113, thereby being beneficial to improving the sealing reliability of the sealing cavity 1113. The first cover 121 can fix the sealing plug 122, prevent the sealing plug 122 from moving and falling off, and improve the reliability of the sealing plug 122. The sealing plug 122 may be a silica gel plug or a rubber plug.

In one illustrative embodiment, the first mounting cavity 111 includes a mounting slot 1111 and a sliding channel 1112. Wherein the mounting groove 1111 is used for mounting the first cap 121 and the sealing plug 122. The slide channel 1112 communicates with the mounting slot 1111. The cross-sectional area of the sliding channel 1112 is smaller than the cross-sectional area of the mounting slot 1111 such that a support surface 1114 (shown in fig. 3) is formed between the sliding channel 1112 and the mounting slot 1111. The sealing plug 122 abuts the bearing surface 1114. The piston 16 is located within the sliding channel 1112 and is in sliding engagement with the sliding channel 1112.

The first mounting chamber 111 forms a stepped hole structure due to the difference in cross-sectional area of the mounting groove 1111 and the sliding passage 1112. And the inlet end of the stepped hole structure is relatively thick, so that the piston 16 and the striker 31 can be conveniently and rapidly inserted into the sliding channel 1112, thereby reducing the assembly difficulty and improving the assembly efficiency.

On the other hand, the supporting surface 1114 of the stepped hole structure also plays a limiting role on the sealing plug 122, so that the sealing plug 122 can be prevented from moving into the sliding channel 1112, and the stability of the sealing plug 122 is further improved.

In addition, the stepped bore support surface 1114 also serves as an assembly location for the sealing plug 122. When the sealing plug 122 abuts the bearing surface 1114, this indicates that the sealing plug 122 is in place, which prevents the sealing plug 122 from being over-compressed and affecting the useful life of the sealing plug 122.

In one illustrative embodiment, as shown in FIG. 1, the first cover 121 is provided with a limiting groove 1211. A portion of the sealing plug 122 is retained within the retention slot 1211. The initiator 32 is provided through the sealing plug 122 and the first cap 121.

Limiting a portion of the sealing plug 122 within the limiting groove 1211 of the first cover 121 is beneficial to further improving stability of the sealing plug 122. Moreover, the first cover 121, the sealing plug 122 and the initiator 32 are assembled into a module, and then the module is assembled with the housing 11, so that the assembly difficulty is reduced, and the assembly efficiency is improved.

Further, the first cover 121 may be a metal cover. The first cover 121 and the housing 11 may be screwed, and the connection is reliable and the assembly is convenient.

In an exemplary embodiment, as shown in fig. 1, a mounting hole 131 and at least one gas passage 132 are provided in the housing 1. The sealed container 21 includes a head 211 and a body 212, as shown in fig. 2. The head 211 is mounted in the mounting hole 131, and the head 211 is provided corresponding to the striker 31 to eject the gas formed by the driving medium 22. The gas passing passage 132 communicates with the mounting hole 131, and one end of the gas passing passage 132 penetrates the housing 1 for delivering the gas formed by the driving medium 22 to the fire extinguishing agent storage container 210.

A mounting hole 131 and an overair passage 132 are provided in the housing 1. The mounting hole 131 is used to mount the head 211 of the hermetic container 21, and the body 212 of the hermetic container 21 can be inserted into the fire extinguishing agent storage container 210. The gas passage 132 is used for delivering gas to the fire extinguishing agent storage container 210, so that the fire extinguishing agent storage container 210 is rapidly pressurized, and then the fire extinguishing agent 220 is sprayed. The gas passing channel 132 is communicated with the mounting hole 131 to ensure that gas sprayed from the head 211 of the sealing container 21 can enter the gas passing channel 132, and one end of the gas passing channel 132 penetrates through the shell 1 to ensure that the gas passing channel 132 can be communicated with the fire extinguishing agent storage container 210 after the shell 1 is assembled with the fire extinguishing agent storage container 210.

Of course, when the starting device is used for other equipment, the overgas channel is used for conveying the gas formed by the driving medium to the container body of other equipment.

In an exemplary embodiment, as shown in fig. 1, the housing 1 includes a shell 11 and a support base 13. A second mounting cavity 112 is provided in the housing 11. The support base 13 is mounted in the second mounting cavity 112. The mounting hole 131 and the air passage 132 are provided on the support base 13.

The shell 1 is split into a plurality of parts such as the shell 11 and the supporting seat 13, which is beneficial to reducing the processing difficulty of each part, is convenient for reasonably selecting the material of each part according to the requirement, and is convenient for assembling the parts in the shell 1, thereby optimizing the structure of the starting device 100 and reducing the assembling difficulty of the starting device 100.

Further, the supporting seat 13 is in threaded connection with the shell 11, so that the connection is reliable and the assembly is convenient. The head 211 of the sealed container 21 is in threaded connection with the supporting seat 13, so that the connection is reliable and the assembly is convenient.

Further, the number of the gas passing passages 132 is plural, and the plural gas passing passages 132 are arranged at intervals along the circumferential direction of the support base 13, as shown in fig. 4, so that the gas can be easily introduced into the fire extinguishing agent storage container 210 rapidly and uniformly.

In one illustrative embodiment, as shown in FIG. 1, the activation device 100 further includes a first sealing membrane 141. The first sealing membrane 141 is disposed in the second mounting chamber 112 and between the striker 31 and the sealing container 21, and the first sealing membrane 141 abuts against an end of the support base 13 near the striker 31.

When a fire occurs, the striker 31 pierces the first sealing membrane 141 and thus the sealed container 21. The provision of the first sealing membrane 141 is advantageous in preventing the striker 31 from being erroneously triggered to cause the sealed container 21 to be pierced, thereby improving the safety of the starting device 100.

The first sealing film 141 may be an aluminum film or other materials.

In an exemplary embodiment, as shown in fig. 1, the housing 1 is provided with at least one ejection passage 114, the ejection passage 114 communicating with the ejection port 1513. The activation device 100 also includes a second sealing membrane 142. The second sealing membrane 142 is disposed corresponding to the nozzle 1513, and is configured to disconnect the communication between the ejection passage 114 and the nozzle 1513.

The discharge passage 114 is provided to be capable of communicating with the fire extinguishing agent storage container 210. The second sealing membrane 142 ensures that the spraying channel 114 is disconnected from the spraying nozzle 1513 when the fire extinguishing apparatus 200 is not in use, thereby preventing the fire extinguishing agent 220 from being sprayed to cause property loss or personal injury. When a fire occurs, after the triggering device 3 opens the sealed container 21, the fire extinguishing agent 220 in the fire extinguishing agent storage container 210 flows to the discharge passage 114 by the air pressure, and then breaks through the second sealing membrane 142, and the fire is extinguished by the discharge port 1513. Of course, when the apparatus 100 is activated for other devices, the ejection passage 114 is provided so as to be capable of communicating with the container body of the other devices.

Compared with the scheme of adopting a sealing valve to disconnect the nozzle 1513 from the ejection channel 114 and further utilizing an elastic member to improve the stability of the sealing valve, the structure of the scheme is simpler.

The second sealing membrane 142 may be an aluminum membrane or other membrane.

Further, the number of the ejection channels 114 may be equal to and one-to-one corresponding to the number of the nozzles 1513, and at this time, the number of the second sealing films 142 may be equal to and one-to-one corresponding to the number of the ejection channels 114, so as to ensure that each of the ejection channels 114 and the nozzles 1513 may be in a disconnected state when there is no fire.

The number of the spraying channels 114 may be different from the number of the spraying nozzles 1513, for example, the spraying channels 114 may have a three-way structure, a four-way structure, etc., and one spraying channel 114 may be communicated with three or four spraying nozzles 1513, which is beneficial to reducing the number of the second sealing membrane 142, further simplifying the product structure and reducing the product cost.

In an exemplary embodiment, as shown in FIG. 1, the activation device 100 further includes a siphon tube 4 fixedly connected to the housing 1 and in communication with the discharge channel 114.

When the starting device 100 is assembled with the fire extinguishing agent layer storing container 210, the siphon tube 4 is inserted into the fire extinguishing agent storing container 210. The siphon tube 4 can suck the fire extinguishing agent 220 in the fire extinguishing agent storage container 210 into the discharge passage 114 by using a siphon principle, and continuously allow the fire extinguishing agent 220 to enter the discharge passage 114, thereby improving the fire extinguishing efficiency. Further, the siphon tube 4 is a plastic tube, and the siphon tube 4 is in threaded connection with the shell 1.

Of course, for small fire extinguishing apparatus, the quantity of extinguishing agent 220 is relatively small and the siphon tube 4 may be eliminated. Alternatively, in the case where the fire extinguishing agent storage container 210 is up and the starting device 100 is down, the fire extinguishing agent 220 may automatically flow to the discharge passage 114 by gravity, and in this case, the siphon tube 4 may be eliminated.

In one illustrative embodiment, as shown in FIG. 1, the housing 1 includes a shell 11 and a spray structure 15. A third mounting cavity 113 is provided in the housing 11 for mounting the spray structure 15. One end of the third installation cavity 113 is opened, and the other end of the third installation cavity 113 communicates with the ejection passage 114. The nozzle 1513 is provided on the ejection structure 15. The second sealing membrane 142 is provided between the ejection channel 114 and the ejection structure 15.

The shell 1 is split into a plurality of parts such as the shell 11 and the injection structure 15, so that the processing difficulty of each part is reduced, the materials of each part are reasonably selected according to the needs, and the assembly of the parts in the shell 1 is also facilitated, so that the structure of the starting device 100 is optimized, and the assembly difficulty of the starting device 100 is reduced.

Wherein the second sealing membrane 142 may be installed first and then the spraying structure 15 may be installed.

In one illustrative embodiment, as shown in FIG. 1, spray structure 15 includes a second cap 152 and a spray nozzle 151. The second cover 152 is disposed at the open end of the third mounting cavity 113 and abuts against the second sealing membrane 142, and the second cover 152 is provided with a through hole. The nozzle 151 is installed at the through hole, and the nozzle 151 communicates with the third installation cavity 113, and a nozzle 1513 is provided on the nozzle 151.

The spraying structure 15 includes a second cover 152 and a nozzle 151, and the second cover 152 is fixedly coupled with the housing 11. The nozzle 151 is mounted on the second cover 152 so that the nozzle 151 of a desired shape can be selected as needed to optimize the product structure.

Further, the second cap 152 is screw-coupled with the housing 11, and the nozzle 151 is screw-coupled with the second cap 152. The threaded connection mode is reliable in connection and convenient to assemble.

Further, as shown in fig. 1, an input channel 1511 and an output channel 1512 may be provided in the nozzle 151, the input channel 1511 communicating with the third mounting cavity 113. The output channel 1512 communicates with the input channel 1511, and an outlet of the output channel 1512 is formed as a spout 1513. The number of input channels 1511 may be one or more and the number of output channels 1512 may be one or more. The nozzle 151 may have a substantially columnar structure, the input passage 1511 may be disposed along a radial direction of the nozzle 151, and the output passage 1512 may be disposed along an axial direction of the nozzle 151.

In one illustrative embodiment, the drive medium 22 is a gaseous medium.

The driving medium 22 may be a gaseous medium stored in the sealed container 21 and rapidly ejected when the sealed container 21 is opened. The driving medium 22 may be nitrogen, argon, carbon dioxide, air, or other medium, and the pressure level is higher than 1.2MPa.

In another illustrative embodiment, the drive medium 22 is a liquid medium.

The driving medium 22 may be a liquid medium, and may be packaged in a liquid form in the sealed container 21, and the driving medium may be vaporized into a gas after the sealed container 21 is opened, such as liquid carbon dioxide, liquid propane, and the like. In other words, the driving medium 22 is a liquid to gaseous medium.

Alternatively, the driving medium 22 may be a solid medium, which is enclosed in a sealed container 21 in a solid form, and sublimated into gas after the sealed container 21 is opened, such as solid carbon dioxide (dry ice), etc.

In other words, the driving medium 22 is a solid-to-gas medium, which is directly decompressed into a gas state by the sealed container 21, rather than generating a gas by combustion or explosion, so that the gas generating device 2 is still a non-initiating explosive device.

Or drive medium 22 may comprise any combination of gaseous, liquid, and solid media. In other words, the driving medium 22 may also include a gaseous medium and a liquid medium. Or the drive medium 22 may also include a gaseous medium and a solid medium. Or drive medium 22 may also include a liquid medium and a solid medium. Or the drive medium 22 may also include gaseous, liquid, and solid media. As long as two different-state mediums or three different-state mediums sealed in the sealed container 21 do not react with each other and can be ejected in a gaseous form after the sealed container 21 is opened.

In one exemplary embodiment, the Rockwell hardness of striker 31 is greater than or equal to HR60.

Setting the hardness of the striker 31 within the above range ensures that the striker 31 can pierce the sealed container 21 quickly and effectively.

In an exemplary embodiment, the diameter of the needle tip of striker 31 is between 2mm and 3 mm.

Limiting the diameter of the tip of the striker 31 to between 2mm and 3mm ensures that the gas can be rapidly ejected after the sealed container 21 is pierced.

Example two

As shown in fig. 4, another embodiment of the present invention provides an activation device 100'. The starting device 100 'comprises a housing 1', a gas generating device 2 'and an initiating device 3'.

Specifically, the housing 1 'is provided with at least one spout 115'. The gas-generating apparatus 2 'comprises a one-piece sealed container 21' and a driving medium 22 'enclosed within the sealed container 21'. The sealed container 21 'is connected to the housing 1'. The initiating device 3 'is located outside the gas generating device 2'.

The difference from the first embodiment is that:

The triggering device 3' includes a striker 31' and an initiator 32'. The striker 31' is provided in correspondence with the hermetic container 21' for piercing the hermetic container 21' to cause the driving medium 22' to eject the hermetic container 21' and form a gas. The initiator 32 'cooperates with the striker 31' for driving the striker 31 'in a direction approaching the hermetic container 21' so that the striker 31 'pierces the hermetic container 21'.

The initiator 32 'is used to drive the movement of the striker 31'. The striker 31 'can quickly pierce the sealed container 21' by the tip portion, and no spark is generated, so that the use is safe and the opening efficiency is high.

In one illustrative example, further, as shown in fig. 4, striker 31 'is located within housing 1' and encloses a sealed cavity 1111 'with housing 1'. One end of the initiator 32' is positioned within the seal chamber 1111' for elevating the air pressure within the seal chamber 1111' to drive the striker 31' in a direction approaching the sealed container 21 '. The other end of the initiator 32' extends through the housing 1' to the outside of the housing 1'.

In this embodiment, the initiator 32' is specifically configured to raise the air pressure in the sealing chamber 1111' and thereby utilize the raised air pressure to drive the movement of the striker 31', which is a skillful design.

In one illustrative example, further, as shown in FIG. 4, striker 31' includes a sliding portion 311' and a needling portion 312'. The sliding portion 311 'encloses a sealing cavity 1111' with the housing 1', and is slidably engaged with the housing 1'. The needling portion 312' is connected to the sliding portion 311', and the needling portion 312' is disposed toward the sealed container 21' for piercing the sealed container 21'.

The striker 31' includes a sliding portion 311' and a needling portion 312', the sliding portion 311' being slidably engaged with the housing 1' to ensure that the striker 31' can smoothly move relative to the housing 1 '. The needling portion 312' is provided in correspondence with the sealed container 21' for performing the piercing function of the striker 31 '.

The outer sidewall of the sliding portion 311 'may have a cylindrical structure, so that there are no ribs, corners, etc. between the sliding portion 311' and the housing 1', which is beneficial to reducing the probability of jamming between the striker 31' and the housing 1', thereby improving the reliability of the starting device 100' in use. The needling 312' may include a conical structure having both higher strength and more pointed portions.

In one illustrative example, further, as shown in fig. 4, the sliding portion 311' includes an end plate 3111' and a side wall 3112'. The side wall plate 3112' is connected to the edge of the end plate 3111' and encloses a groove open at one end with the end plate 3111 '. The housing 1' seals the open end of the groove and encloses a sealing cavity 1111' with the sliding portion 311 '. The needling 312' is connected to the panel surface of the end plate 3111' facing away from the side panel 3112'.

In this solution, the sliding portion 311' adopts a hollow structure, and the sliding portion 311' and the housing 1' enclose a sealing cavity 1111', which is beneficial to reducing the volume of the sealing cavity 1111' to increase the air pressure rising speed of the sealing cavity 1111', and reducing the mass of the firing pin 31', thereby reducing the air pressure value pushing the firing pin 31' to move, and further increasing the initiating speed of the initiating device 3 '.

Further, the end plate 3111', the side wall 3112' and the needling 312' are integrally formed, i.e., the striker 31', so that the striker 31' has high strength and is advantageous in improving assembly efficiency.

In an illustrative example, further, as shown in fig. 4, the housing 1' includes a housing 11' and a sealing plug 12'. A first mounting cavity 111 'is provided in the housing 11'. At least a portion of the sealing plug 12' and the striker 31' are located within the first mounting cavity 111'. The sliding portion 311 'is slidably fitted with the housing 11'. The sealing plug 12' encloses a sealing cavity 1111' with the sliding portion 311 '.

The shell 1 'is split into a plurality of parts such as the shell 11', the sealing plug 12', and the like, so that the processing difficulty of each part is reduced, the materials of each part are reasonably selected according to the needs, and the assembly of the parts in the shell 1' is also facilitated, so that the structure of the starting device 100 'is optimized, and the assembly difficulty of the starting device 100' is reduced. The sealing plug 12' is used to seal the groove of the sliding portion 311', which is beneficial to improving the sealing reliability of the sealing cavity 1111 '. Wherein the housing 11' may be a metal housing. The sealing plug 12' may be a rubber plug or a silicone plug.

In one illustrative example, further, striker 31 'may be formed of a metal member having a relatively high hardness to facilitate rapid puncturing of sealed container 21'. At least one sealing ring is sleeved between the sliding part 311' and the housing 11', so as to further improve the sealing reliability of the sealing cavity 1111 '. The side wall 3112' of the sliding portion 311' is provided with at least one sealing groove 3113' for mounting a sealing ring, as shown in fig. 4. Wherein the housing 11 'is provided with a through hole through which the initiator 32' extends outside the housing 1 'through the sealing plug 12'.

In an illustrative example, further, as shown in fig. 4, a mounting hole 131' and at least one gas passing channel 132' are provided in the housing 1 '. The sealed container 21' includes a head 211' and a body 212', as shown in fig. 5. The head 211' is mounted in the mounting hole 131', and the head 211' is provided in correspondence with the striker 31' to eject the gas formed by the driving medium 22 '. The gas passing passage 132 'communicates with the mounting hole 131', and one end of the gas passing passage 132 'penetrates the housing 1' for supplying the gas formed by the driving medium 22 'to the fire extinguishing agent storage container 210'.

The housing 1' is provided therein with a mounting hole 131' and an air passage 132'. The mounting hole 131 'is used to mount the head 211' of the sealing container 21', and the body 212' of the sealing container 21 'can be inserted into the fire extinguishing agent storage container 210'. The gas passage 132 'is used for delivering gas to the fire extinguishing agent storage container 210', so that the fire extinguishing agent storage container 210 'is rapidly pressurized, and then the fire extinguishing agent 220' is sprayed. The gas passing channel 132' is communicated with the mounting hole 131' to ensure that gas sprayed from the head 211' of the sealed container 21' can enter the gas passing channel 132', and one end of the gas passing channel 132' penetrates through the shell 1' to ensure that the gas passing channel 132' can be communicated with the fire extinguishing agent storage container 210' after the shell 1' is assembled with the fire extinguishing agent storage container 210 '.

In one illustrative example, further, as shown in fig. 4, the housing 1' includes a shell 11' and a support base 13'. A second mounting cavity 112 'is provided in the housing 11'. The support seat 13 'is mounted in the second mounting cavity 112'. The mounting hole 131' and the gas passing passage 132' are provided on the support base 13'.

The shell 1 'is split into a plurality of parts such as the shell 11', the supporting seat 13', and the like, so that the processing difficulty of each part is reduced, the materials of each part are also reasonably selected according to the needs, and the assembly of the parts in the shell 1' is also facilitated, so that the structure of the starting device 100 'is optimized, and the assembly difficulty of the starting device 100' is reduced.

In an illustrative example, further, the support base 13 'is further provided with a relief hole 133', and the relief hole 133 'communicates with the mounting hole 131'. The needling 312 'is inserted into the relief holes 133', as shown in fig. 4. The cross-sectional area of the escape hole 133 'is larger than that of the mounting hole 131'. The air passage 132 'penetrates through two ends of the supporting seat 13' along the axial direction of the avoidance hole 133', and the air passage 132' penetrates through the wall of the avoidance hole 133 'along the radial direction of the avoidance hole 133'.

In this embodiment, the setting of the avoidance hole 133' reduces the distance between the striker 31' and the sealing container 21', so that the striker 31' can pierce the sealing container 21' quickly. Meanwhile, the avoidance hole 133' is relatively thick, and the mounting hole 131' is relatively thin, so that the gas passing channel 132' can penetrate through the wall of the avoidance hole 133' along the radial direction of the avoidance hole 133', so that the wall of the avoidance hole 133' is not a complete annular structure in the circumferential direction, and the wall of the mounting hole 131' can be a complete annular structure in the circumferential direction. In this way, the mounting hole 131 'and the head 211' of the sealing container 21 'can have a larger contact area to improve the fixing reliability of the sealing container 21', and the gas sprayed from the head 211 'in the mounting hole 131' can more easily enter the gas passing channel 132', thereby improving the initiating speed of the initiating device 3'.

Further, the relief hole 133' is circular in cross-section. The mounting hole 131' has a circular cross section. The avoidance hole 133 'is coaxially disposed with the mounting hole 131', and the radius of the avoidance hole 133 'is greater than the radius of the mounting hole 131'.

Further, the supporting seat 13 'is in threaded connection with the shell 11', so that the connection is reliable and the assembly is convenient. The head 211' of the sealed container 21' is in threaded connection with the supporting seat 13', so that the connection is reliable and the assembly is convenient.

Further, the number of the gas passing passages 132 'is plural, and the plural gas passing passages 132' are arranged at intervals along the circumferential direction of the support base 13', so that the gas can be conveniently and rapidly introduced into the fire extinguishing agent storage container 210'.

In one illustrative example, further, as shown in fig. 4, the cross-sectional area of the second mounting cavity 112 'is larger than the cross-sectional area of the first mounting cavity 111', such that the first mounting cavity 111 'and the second mounting cavity 112' form a stepped hole structure. The end face of the support seat 13' close to the first mounting cavity 111' abuts against the end face of the second mounting cavity 112 '. The end surface of the support seat 13' adjacent to the first mounting cavity 111' protrudes from the inner side surface of the first mounting cavity 111' to form a stop surface 134' for stopping the striker 31', as shown in fig. 4.

In assembly, the sealing plug 12' may be first inserted into the first mounting cavity 111' through the second mounting cavity 112', then the striker 31' is inserted into the first mounting cavity 111' through the second mounting cavity 112', then the support base 13' is inserted into the second mounting cavity 112' until the support base 13' abuts against the step of the stepped hole, and then the head 211' of the sealing container 21' is inserted into the mounting hole 131' of the support base 13 '. In this way, the assembly process of the starting device 100' is simple and easy.

In addition, when the striker 31 'moves to abut against the supporting seat 13', the striker cannot continue to move due to the stop of the supporting seat 13', so that the sliding stroke of the striker 31' is limited, and the problem that the sealed container 21 'is excessively deformed and falls off due to the overlarge movement range of the striker 31' is avoided.

Further, the needling portion 312 'of the striker 31' is provided with a transition passage 3121 'communicating with the air passage 132', as shown in fig. 4. The gas in the sealed container 21 'can thus also enter the overgas channel 132' through the transition channel 3121', thereby further increasing the initiation speed of the initiating device 3'. In addition, this may further reduce the mass of striker 31 'and further reduce the requirements on initiator 32'.

In one illustrative example, further, as shown in fig. 4, the housing 1 'is provided with at least one ejection channel 116', the ejection channel 116 'communicating with the ejection orifice 115'. The activation device 100' further comprises a sealing valve 4', the sealing valve 4' being arranged to disconnect the discharge channel 116' from the nozzle 115', the sealing valve 4' being arranged to conduct the discharge channel 116' to the nozzle 115' under the impact of a fluid, such as a fire extinguishing agent 220 '.

The discharge passage 116 'is provided to be capable of communicating with the fire extinguishing agent storage container 210'. The sealing valve 4 'ensures that the discharge passage 116' is disconnected from the discharge port 115 'when the fire extinguishing apparatus is not in use, thereby preventing the fire extinguishing agent 220' from being discharged to cause property loss or personal injury. When a fire occurs, the fire extinguishing agent in the fire extinguishing agent storage container 210 'flows to the discharge passage 116' by the air pressure after the sealed container 21 'is opened by the initiating device 3', and then the sealing valve 4 'is opened to discharge the fire extinguishing agent from the nozzle 115'. Of course, when the starting apparatus 100 'is used for other devices, the ejection passage 116' is provided so as to be capable of communicating with the container body of the other devices.

The sealing valve 4 'can be a metal sealing plug in interference fit with the shell 1'.

Further, at least one sealing ring is sleeved between the sealing valve 4' and the shell 1', so as to further improve the sealing reliability of the sealing valve 4 '. The outer side wall of the sealing valve 4 'is provided with a sealing groove 3113' for mounting a sealing ring.

Further, the number of the ejection channels 116 'may be equal to and one-to-one corresponding to the number of the ejection ports 115', and at this time, the number of the sealing valves 4 'may be equal to and one-to-one corresponding to the number of the ejection channels 116', so as to ensure that each ejection channel 116 'and the ejection port 115' may be in a disconnected state when there is no fire.

The number of the spraying channels 116 'may be different from the number of the spraying nozzles 115', for example, the spraying channels 116 'may have a three-way structure, a four-way structure, etc., and one spraying channel 116' may be communicated with three or four spraying nozzles 115', which is beneficial to reducing the number of the sealing valves 4', simplifying the product structure and reducing the product cost.

In one illustrative example, further, as shown in FIG. 4, the activation device 100 'further includes a siphon tube 5' fixedly coupled to the housing 1 'and in communication with the ejection channel 116'.

When the starting device 100 'is assembled with the fire extinguishing agent layer storing container 210', the siphon tube 5 'is inserted into the fire extinguishing agent storing container 210'. The siphon tube 5 'can suck the fire extinguishing agent 220' in the fire extinguishing agent storage container 210 'into the discharge passage 116' by using a siphon principle, so that the fire extinguishing agent 220 'continuously enters the discharge passage 116', thereby improving the fire extinguishing efficiency. Further, the siphon tube 5' is a plastic tube, and the siphon tube 5' is in threaded connection with the shell 1 '.

Of course, for small fire extinguishing apparatus ', the quantity of extinguishing agent 220' is relatively small, and the siphon tube 5' may be eliminated. Alternatively, in the case where the fire extinguishing agent storage container 210' is up and the starting device 100' is down, the fire extinguishing agent 220' may automatically flow to the discharge passage 116' by gravity, in which case the siphon tube 5' may be eliminated.

In an illustrative example, further, as shown in fig. 4, a third installation cavity 113 'and a avoiding cavity 117' communicating with the third installation cavity 113 'are also provided in the housing 1'. The sealing valve 4 'is installed in the third installation cavity 113' to disconnect the discharge passage 116 'from the spouting port 115', and is configured to be movable into the escape cavity 117 'to communicate the discharge passage 116' with the spouting port 115 'under the impact of a fluid such as the fire extinguishing agent 220'.

In this way, the sealing valve 4 'is still located in the housing 1' after the impact of the fire extinguishing agent 220', and thus, it is possible to prevent the sealing valve 4' from collapsing out and causing property damage or person capping.

In one illustrative example, further, as shown in FIG. 4, the activation device 100 'further includes an elastic member 6' disposed within the housing 1 'and abutting the sealing valve 4' for limiting movement of the sealing valve 4 'toward the evacuation chamber 117'.

The elastic member 6 'can apply an acting force to the sealing valve 4', so that the position stability of the sealing valve 4 'is improved, and the fire extinguishing agent 220' is prevented from being sprayed out by mistake in the absence of fire to cause property loss or personal injury.

The elastic member 6' may be a compression spring, a spring plate, a silica gel ball, or the like.

In one illustrative example, further, as shown in fig. 4, the housing 1' includes a seal cover 14' and a shell 11'. The housing 11 'is provided with a fourth mounting cavity 114' open at both ends. One end of the fourth installation cavity 114' is communicated with the third installation cavity 113', and the sealing cover 14' is used for sealing one end of the fourth installation cavity 114' away from the third installation cavity 113 '.

The shell 1' is split into a plurality of parts such as the shell 11', the sealing cover 14', and the like, which is beneficial to reducing the processing difficulty of each part, is convenient for reasonably selecting the materials of each part according to the needs, and is also convenient for assembling the parts in the shell 1', thereby optimizing the structure of the starting device 100 and reducing the assembling difficulty of the starting device 100 '.

Specifically, during the assembly process, the sealing valve 4 'may be first installed into the third installation cavity 113' through the fourth installation cavity 114', then the elastic member 6' is installed into the housing 11', so that the elastic member 6' abuts against the sealing valve 4', and then the sealing cover 14' is covered.

Further, as shown in fig. 4, the sealing cover 14 'is provided with a limiting groove 141', and a part of the elastic member 6 'is limited in the limiting groove 141'.

The limiting groove 141 'can limit the elastic piece 6', so that the elastic piece 6 'is prevented from tilting, shifting and the like, and the use reliability of the elastic piece 6' is improved.

In an illustrative example, further, as shown in fig. 4, the end of the sealing valve 4' facing the sealing cover 14' is also provided with a limit groove 42'. One end of the elastic piece 6' can be inserted into the limit groove 42', which is favorable for further preventing the elastic piece 6' from tilting, shifting and the like, and ensuring good matching of the elastic piece 6' and the sealing valve 4 '.

Further, as shown in fig. 4, the end of the sealing valve 4' facing the sealing cover 14' is further provided with a limit boss 41'. The cross-sectional area of the limiting boss 41' is larger than that of the third installation cavity 113', so that the sealing valve 4' is prevented from being blocked in the third installation cavity 113' to influence the normal spraying of the fire extinguishing agent 220 '.

As shown in fig. 6, an embodiment of the present invention also provides a fire extinguishing apparatus 200 including a fire extinguishing agent storage container 210 and the activation device 100 according to the first embodiment.

Wherein the fire extinguishing agent storage container 210 contains the fire extinguishing agent 220. The housing 1 of the activation device 100 is connected to a fire extinguishing agent storage container 210. The gas generating means 2 of the starting apparatus 100 is used to deliver gas to the fire extinguishing agent storage container 210, which drives the fire extinguishing agent 220 to be ejected. The nozzle 1513 of the activation device 100 is provided to be capable of communicating with the fire extinguishing agent storage container 210.

The fire extinguishing apparatus 200 according to the present embodiment includes the starting device 100 according to any of the above embodiments, so that all the advantages of the first embodiment are provided and will not be described herein.

Further, the housing 1 is screw-coupled with the fire extinguishing agent storage container 210, and the connection is reliable and the assembly is convenient. The gas generating means 2 and the siphon tube 4 of the starting apparatus 100 are inserted into the fire extinguishing agent storage container 210. The overgas passage 132 of the activation device 100 communicates with the fire suppressant storage container 210.

Wherein the shape of the fire extinguishing agent storage container 210 is not limited. For example, the cross-section of the fire extinguishing agent storage container 210 may be circular, oval, triangular, polygonal, etc.

In one illustrative embodiment, the fire suppression apparatus 200 is a gas fire suppression apparatus.

In another illustrative embodiment, the fire suppression apparatus 200 is a dry powder fire suppression apparatus.

In yet another illustrative embodiment, the fire suppression apparatus 200 is a liquid fire suppression apparatus.

As shown in fig. 6, another embodiment of the present invention provides a fire extinguishing apparatus 200' including a fire extinguishing agent storage container 210' and an activation device 100' as in the second embodiment described above.

Wherein the fire extinguishing agent storage container 210 'contains the fire extinguishing agent 220'. The housing 1' of the activation device 100' is connected to the fire extinguishing agent storage container 210 '. The gas generating means 2' of the starting apparatus 100' is used to feed the gas for driving the fire extinguishing agent 220 to be ejected into the fire extinguishing agent storage container 210 '. The nozzle 115' of the activation device 100' is provided to be capable of communicating with the fire extinguishing agent storage container 210 '.

The fire extinguishing apparatus 200 'according to the present embodiment includes the starting device 100' according to the second embodiment, so that all the advantages of the second embodiment are provided and will not be described herein.

Further, the housing 1 'is screw-coupled with the fire extinguishing agent storage container 210', and the connection is reliable and the assembly is convenient. The gas generating means 2 'and the siphon tube 5' of the starting apparatus 100 'are inserted into the fire extinguishing agent storage container 210'. The overgas passage 132' of the activation device 100' communicates with the fire suppressant storage container 210 '.

In one illustrative embodiment, the fire suppression apparatus 200' is a gas fire suppression apparatus.

In another illustrative embodiment, the fire suppression apparatus 200' is a dry powder fire suppression apparatus.

In yet another illustrative embodiment, the fire suppression apparatus 200' is a liquid fire suppression apparatus.

Two specific examples are described below in conjunction with the accompanying drawings.

Specific example 1

This particular example provides a gaseous fire suppression apparatus comprising an activation device 100 and a fire suppressant storage container 210, the fire suppressant storage container 210 containing gaseous fire suppressant.

The starting device 100 comprises a housing 1, a gas generating means 2, an initiating means 3, a piston 16, a first sealing membrane 141, a second sealing membrane 142 and a siphon 4. The housing 1 comprises a shell 11, a sealing structure 12, a support seat 13 and a spraying structure 15. The gas generating apparatus 2 comprises a sealed container 21 and a driving medium 22 enclosed within the sealed container 21. The triggering device 3 comprises a firing pin 31 and an electrical trigger. The sealing structure 12 comprises a first cover 121 and a sealing plug 122. The spray structure 15 includes a second cap 152 and a spray nozzle 151.

The housing 11 is screw-coupled with the fire extinguishing agent storage container 210. A first mounting chamber 111, a second mounting chamber 112 and a third mounting chamber 113 are provided in the housing 11. The first mounting chamber 111 includes a mounting groove 1111 and a sliding channel 1112. The mounting groove 1111 and the sliding channel 1112 form a bearing surface 1114 therebetween. The first cover 121 is screw-coupled with the groove wall of the mounting groove 1111. A portion of the sealing plug 122 is retained within the retention groove 1211 of the first cap 121. The sealing plug 122 abuts against the first cap 121 and the support surface 1114. The piston 16 and the striker 31 are mounted in the slide channel 1112. The space between the piston 16 and the sealing plug 122 forms a sealing chamber 1113. The striker 31 is fixedly connected to the piston 16. The resistor 321 of the electrical initiator is located within the sealed cavity 1113 and the connection wire 322 extends through the sealing plug 122 and the first cap 121 to the exterior of the housing 11.

The support seat 13 is mounted in the second mounting cavity 112 by means of a threaded connection. The head 211 of the sealing container 21 is screwed to the support base 13, and the body 212 of the sealing container 21 is inserted into the fire extinguishing agent storage container 210. The supporting seat 13 is provided with an air passage 132, and the air passage 132 is communicated with the fire extinguishing agent storage container 210. The first sealing membrane 141 is provided between the head 211 of the sealing container 21 and the striker 31, and is sandwiched between the support base 13 and the top wall of the second mounting chamber 112.

The second cover 152 is fixedly coupled to the inner sidewall of the third mounting chamber 113 by means of screw coupling. The nozzle 151 is fixedly coupled to the second cap 152 by means of screw coupling. The nozzle 151 is provided with a spout 1513. The siphon tube 4 is a plastic tube fixedly connected with the housing 11 by a threaded connection and communicated with the ejection channel 114. The second sealing film 142 is provided between the ejection passage 114 and the third cover, and is provided corresponding to the nozzle 151.

When a fire occurs, the electric initiator is powered on, and the resistor 321 heats up, so that the air pressure of the sealing cavity 1113 is increased. The air pressure raised by the sealing cavity 1113 drives the piston 16 to move towards the direction approaching the gas generating device 2, the piston 16 drives the firing pin 31 to synchronously move, so that the firing pin 31 punctures the first sealing membrane 141 and the sealing container 21, and the driving medium 22 in the sealing container 21 ejects the sealing container 21 to form gas. The sprayed gas enters the fire extinguishing agent storage container 210 through the gas passage 132, so that the fire extinguishing agent storage container 210 is rapidly pressurized, and the fire extinguishing agent 220 is further driven to enter the fire extinguishing agent spraying passage 114 through the siphon pipe 4, break the second sealing membrane 142, and spray the fire extinguishing agent through the nozzle 151.

Specific example 2

As shown in fig. 6, this specific example provides a gas fire extinguishing apparatus including an activation device 100 'and a fire extinguishing agent storage container 210', the fire extinguishing agent storage container 210 'containing a gas fire extinguishing agent'.

As shown in fig. 4, the starting device 100' includes a housing 1', a gas generating device 2', an initiating device 3', a sealing valve 4', a siphon tube 5', and an elastic member 6'. The housing 1' comprises a shell 11', a sealing cover 14', a sealing plug 12' and a support seat 13'. As shown in fig. 5, the gas-generating apparatus 2 'includes a sealed container 21' and a driving medium 22 'enclosed in the sealed container 21'. The triggering device 3 'includes a striker 31' and an electric initiator. The elastic member 6' is a compression spring.

The housing 11 'is provided with a first mounting chamber 111', a second mounting chamber 112', a third mounting chamber 113', an avoidance chamber 117', and a fourth mounting chamber 114'. The sealing plug 12 'is arranged in the first mounting cavity 111' and the supporting seat 13 'is arranged in the second mounting cavity 112'. The support base 13' is provided with a relief hole 133' and a mounting hole 131'. The striker 31' includes a sliding portion 311' and a needling portion 312'. The sliding portion 311' is located in the first mounting cavity 111' and slidably engages with the housing 11'. The needling 312 'is inserted into the relief hole 133'. A sealing cavity 1111' is formed between the sealing plug 12' and the striker 31'. The sealed container 21' includes a head 211' and a body 212'. The head 211 'is installed in the installation hole 131', and the body 212 'is inserted into the fire extinguishing agent storage container 210'. The support seat 13 'is also provided with four overair channels 132'. The sealing valve 4 'is mounted in the third mounting chamber 113'. The sealing cap 14' is partially inserted into the fourth mounting chamber 114' and seals the fourth mounting chamber 114'. The sealing cover 14' is provided with a limit groove 141', one part of the compression spring is inserted into the limit groove 141', and the other part passes through the avoidance cavity 117' to abut against the sealing valve 4'. The housing 11' is also provided with an ejection channel 116' and an ejection orifice 115'. One end of the siphon tube 5 'is inserted into the discharge passage 116', and the other end of the siphon tube 5 'is inserted into the fire extinguishing agent storage container 210'.

Wherein the sealing cover 14 'is in threaded connection with the housing 11'. The siphon tube 5 'is fixedly connected with the shell 11' through screw threads. The supporting seat 13 'is fixedly connected with the shell 11' in a threaded manner. The sealing valve 4' is a metal piece and is sleeved with an O-shaped sealing ring. The striker 31' is also a metal piece sleeved with two O-rings. The sealing plug 12' is a piece of silicone.

The starting current of the electric initiator is 225mA to 600mA, the safety current is 200mA, and the resistance value is 4.5Ω+/-0.5Ω. The gas generating means 2 'has an oval shape and the driving medium 22' is nitrogen. The hardness of the striker 31' was HR60, and the diameter of the needle was 2 mm.+ -. 0.5mm. The gas generating device 2' is driven by an external power supply of the electric initiator in a mode of spraying gas.

The fire extinguishing agent 220' is heptafluoropropane. The fire extinguishing agent storage container 210' is cylindrical in shape. There is no pressure gauge on both the activation device 100 'and the fire suppressant storage container 210'. The spout 115 'has a three-way structure and is connected with a siphon tube 5'.

However, when the connecting wire 322' of the electric initiator is powered on, the resistor 321' heats up to raise the air pressure in the sealing cavity 1111' to push the firing pin 31' to pierce the sealing container 21' of the gas generating device 2', nitrogen in the sealing container 21' enters the fire extinguishing agent storage container 210' through the gas passing channel 132', heptafluoropropane fire extinguishing agent in the fire extinguishing agent storage container 210' is extruded into the siphon tube 5', and the sealing valve 4' is jacked up to be ejected from the nozzle 115 '.

In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms "upper", "lower", "one side", "the other side", "one end", "the other end", "the side", "the opposite", "four corners", "the periphery", "the" mouth "character structure", etc., are directions or positional relationships based on the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structures referred to have a specific direction, are configured and operated in a specific direction, and thus are not to be construed as limiting the present invention.

In describing embodiments of the present invention, unless explicitly stated or limited otherwise, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," "assembled" should be construed broadly, e.g., as being either fixedly connected or detachably connected, or integrally connected, and the terms "mounted," "connected," "fixedly connected" may be either directly or indirectly connected via an intermediate medium, or may be in communication with each other between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Although the embodiments of the present invention are described above, the embodiments are only used for facilitating understanding of the present invention, and are not intended to limit the present invention. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is defined by the appended claims.

Claims

1. A starting device, characterized in that it can be used at least for a gas fire extinguishing device to form a non-pressure stored gas fire extinguishing device, the starting device comprising:

A shell, wherein the shell is provided with at least one nozzle and a sealed cavity is provided inside the shell;

A gas generating device, comprising an integrated sealed container and a driving medium sealed in the sealed container, wherein the sealed container is connected to the housing;

an initiator, located outside the gas generating device, comprising a striker and an initiator, wherein the striker is arranged corresponding to the sealed container and is used to puncture the sealed container so that the driving medium is ejected from the sealed container and forms gas; one end of the initiator is located in the sealed cavity, and the other end of the initiator passes through the shell and extends to the outside of the shell; the sealed cavity is arranged corresponding to the striker;

A piston is provided in the housing; the piston is slidably matched with the housing and forms a sealed cavity with the housing; the striker is fixedly connected to the piston;

The trigger is used to increase the air pressure in the sealed chamber, so as to utilize the increased air pressure to drive the piston to drive the striker to move in a direction close to the sealed container, so that the striker punctures the sealed container;

The initiator includes at least one of an electrical initiator and a thermal initiator;

The electric initiator comprises a resistor and a connecting wire connected to the resistor, wherein the resistor is located in the sealed cavity, and the connecting wire passes through the shell and extends to the outside of the shell; the electric initiator is configured to heat the resistor to directly increase the air pressure in the sealed cavity to drive the piston to drive the striker to puncture the sealed container;

The thermal initiator includes a thermal element, and the thermal initiator is configured to generate heat by sensing the increase in external temperature through the thermal element, thereby directly increasing the air pressure in the sealed chamber to drive the piston to drive the striker to puncture the sealed container;

The housing is provided with a mounting hole and at least one air passage;

The sealed container comprises a head and a body, the head is installed in the installation hole, and the head is arranged corresponding to the striker;

The gas passage is communicated with the mounting hole, and one end of the gas passage passes through the shell, and is used to transport the gas formed by the driving medium;

The housing comprises an outer shell and a support seat, a second mounting cavity is provided in the outer shell, the support seat is installed in the second mounting cavity, the mounting hole and the air passage are provided on the support seat, and the outlet of the air passage is provided downward;

The starting device also includes:

A first sealing diaphragm is disposed in the second mounting cavity and is located between the striker and the sealing container, and the first sealing diaphragm abuts against an end of the support seat close to the striker;

The housing is provided with at least one ejection channel, and the ejection channel is communicated with the ejection port;

The starting device further comprises a second sealing membrane, which is arranged corresponding to the nozzle and is used to disconnect the communication between the ejection channel and the nozzle.

2. The starting device according to claim 1, characterized in that:

The housing is provided with a first mounting cavity, the striker and the piston are located in the first mounting cavity, and the first mounting cavity has an open end;

The housing further comprises a sealing structure connected to the outer shell and sealing the open end of the first installation cavity. The initiator is arranged through the sealing structure, and the space between the sealing structure and the piston forms the sealing cavity.

3. The starting device according to claim 2, characterized in that the sealing structure comprises:

A first cover connected to the housing and covering the open end of the first installation cavity;

A sealing plug is at least partially located in the first installation cavity and abuts against the first cover, and the space between the sealing plug and the piston forms the sealing cavity.

4. The starting device according to claim 3, characterized in that the first mounting cavity comprises:

A mounting groove for mounting the first cover and the sealing plug; and

A sliding channel is connected to the mounting groove, and the cross-sectional area of the sliding channel is smaller than the cross-sectional area of the mounting groove, so that a supporting surface is formed between the sliding channel and the mounting groove, the sealing plug abuts against the supporting surface, and the piston is located in the sliding channel and slidably cooperates with the sliding channel.

5. The starting device according to claim 4, characterized in that:

The first cover is provided with a limiting groove, a part of the sealing plug is limited in the limiting groove, and the initiator is penetrated through the sealing plug and the first cover.

6. The starting device according to any one of claims 1 to 5, characterized in that it also comprises:

The siphon is fixedly connected to the shell and communicated with the ejection channel.

7. The starting device according to any one of claims 1 to 5, characterized in that:

The shell also includes an injection structure, and a third installation cavity for installing the injection structure is provided in the shell, one end of the third installation cavity is open, and the other end of the third installation cavity is connected to the ejection channel, the nozzle is provided on the injection structure, and the second sealing diaphragm is provided between the ejection channel and the injection structure.

8. The starting device according to claim 7, characterized in that the injection structure comprises:

a second cover, disposed at the open end of the third installation cavity and abutting against the second sealing membrane, and the second cover is provided with a through hole; and

A nozzle is installed at the through hole, and the nozzle is communicated with the third installation cavity, and the nozzle is arranged on the nozzle.

9. The starting device according to any one of claims 1 to 5, characterized in that:

The driving medium includes at least one of a gaseous medium, a liquid medium and a solid medium.

10. A fire extinguishing device, comprising:

a fire extinguishing agent storage container, wherein the fire extinguishing agent storage container contains a fire extinguishing agent; and

The starting device according to any one of claims 1 to 9, wherein the shell of the starting device is connected to the fire extinguishing agent storage container, the gas producing device of the starting device is used to transport gas that drives the fire extinguishing agent to be sprayed into the fire extinguishing agent storage container, and the nozzle of the starting device is configured to be able to communicate with the fire extinguishing agent storage container.