CN217661218U

CN217661218U - Temperature sensing glass ball starts nitrogen gas drive formula extinguishing device

Info

Publication number: CN217661218U
Application number: CN202221405314.6U
Authority: CN
Inventors: 檀朝清; 朱猛; 王晨旭
Original assignee: Shanghai Reti Fire Fighting Equipment Co ltd
Current assignee: Shanghai Reti Fire Fighting Equipment Co ltd
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-10-28
Anticipated expiration: 2032-06-06

Abstract

The utility model discloses a temperature sensing glass ball starting nitrogen gas driving type fire extinguishing device, which comprises a cylinder body, a feedback assembly, a piston movably arranged in the cylinder body, a left end cover and a right end cover which are respectively fixedly and hermetically connected at two ends of the cylinder body, a left cavity is formed between the piston and the left end cover, a right cavity is formed between the piston and the right end cover, the left cavity is used for storing fire extinguishing medium, the right cavity is used for storing driving gas, and the left end cover is provided with a first cavity and a nozzle interface; the nozzle interface is provided with a nozzle, the first cavity is communicated with the left cavity through a first channel, and the nozzle interface is communicated with the first cavity; the left end cover is provided with a temperature sensing trigger assembly used for starting the fire extinguishing device to enable fire extinguishing media to be sprayed out from the nozzle, and the temperature sensing trigger assembly comprises a glass ball and a sealing valve core supported by the glass ball to block the first channel.

Description

Temperature sensing glass ball starts nitrogen gas drive formula extinguishing device

Technical Field

The utility model relates to a fire control unit technical field specifically is a temperature sensing glass ball starts nitrogen gas drive formula extinguishing device.

Background

At present, portable fire extinguishing devices are often arranged in places with fire fighting demands, such as vehicles, power distribution facilities, warehouses and the like, the fire extinguishing devices are manually started after safety pins are manually pulled out, the fire extinguishing work can be implemented, certain delay is realized, and the portable fire extinguishing devices are especially suitable for similar small closed spaces such as an engine cabin, an electrical box and the like, and can not be found in time and effectively extinguish when a fire is started.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a temperature sensing glass ball starts nitrogen gas drive type extinguishing device adopts cylinder style overall structure to make things convenient for the dress to locate airtight space, can in time send back feedback signal when can the automatic detection start-up put out a fire and start, has solved the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a temperature sensing glass ball starting nitrogen driving type fire extinguishing device comprises a cylinder body 1, a feedback assembly 6, a piston 4 movably arranged in the cylinder body 1, a left end cover 2 and a right end cover 3 which are fixedly and hermetically connected to two ends of the cylinder body 1 respectively, a left cavity 101 is formed between the piston 4 and the left end cover 2, a right cavity 102 is formed between the piston 4 and the right end cover 3, the left cavity 101 is used for storing fire extinguishing media, the right cavity 102 is used for storing driving gas, and a first cavity 202 and a nozzle interface 204 are formed in the left end cover 2; the first cavity 202 is communicated with the left cavity 101 through a first channel 201, and the nozzle port 204 is communicated with the first cavity 202; the left end cover 2 is provided with a temperature sensing trigger component 5 for starting the fire extinguishing apparatus to enable the fire extinguishing medium to be sprayed out from the nozzle interface 204, and the temperature sensing trigger component 5 comprises a glass ball 502 and a sealing valve core 503 supported by the glass ball 502 to seal the first channel 201.

Further, the temperature sensing trigger assembly 5 further comprises a holding body 501 and a first spring 504, the holding body 501 is screwed at the open end of the first cavity 202, a third cavity 5011 and a fourth cavity 5012 are coaxially communicated and arranged in the holding body 501, the sealing valve core 503 is slidably assembled in the third cavity 5011, one end of the glass ball 502 is abutted against the bottom of the fourth cavity 5012, and the other end of the glass ball is abutted against the left end of the sealing valve core 503; at least a part of the peripheral wall of the fourth cavity 5012 is hollowed out to expose the glass ball 502, the first spring 504 is sleeved on the right end of the sealing valve core 503 to push the sealing valve core 503 against the glass ball 502, and a second sealing ring 506 is arranged between the sealing valve core 503 and the fourth cavity 5012.

Further, a sealing portion is arranged at the right end of the sealing valve core 503, the outer diameter of the sealing portion is matched with the inner diameter of the first channel 201, a first sealing ring 505 is sleeved on the sealing portion, and at least a part of the sealing portion extends into the first channel 201 when the first channel 201 is sealed, so that the first sealing ring 505 is in sealing contact with the inner wall of the first channel 201.

Further, the feedback assembly 6 is mounted on the left end cover 2 and includes a sensor 601, a self-locking pin 605, a trigger pin 607, and a second cavity 203 formed in the left end cover 2, the second cavity 203 is communicated with the first cavity 202, the trigger pin 607 is movably mounted in the second cavity 203, the sensor 601 is screwed in a first hollow nut 602, the first hollow nut 602 is screwed in an opening end of the second cavity 203, a second spring 603 is mounted between the first hollow nut 602 and the trigger pin 607 to separate the trigger pin 607 and two adjacent end faces of the sensor 601 from each other, the self-locking pin 605 is radially disposed relative to the trigger pin 607, a third spring 606 is disposed at the left end of the self-locking pin 605, and when the trigger pin 607 moves to a position where the sensor 601 is triggered, the third spring 606 pushes the self-locking pin 605 to be clamped into a ring groove 6071 at the right end of the trigger pin 607.

Furthermore, a flange 6051 is arranged in the middle of the self-locking pin 605, the flange 6051 is slidably fitted in a fifth cavity 6041 of the second hollow nut 604, the left end of the self-locking pin 605 extends through and extends out of the left end of the second hollow nut 604, the third spring 606 is installed in the fifth cavity 6041, one end of the third spring is abutted against the bottom surface of the fifth cavity 6041, the other end of the third spring is abutted against the left end surface of the flange 6051, and the second hollow nut 604 is screwed with the left end cover 2.

Furthermore, the left end cover 2 is also provided with a fire extinguishing agent adding assembly 7, the fire extinguishing agent adding assembly 7 comprises a valve body 701, the valve body 701 is screwed on the left end cover 2 and is communicated with a second channel 205 arranged in the left end cover 2, the second channel 205 is communicated with the left cavity 101, a one-way valve core 702 which is opened towards the second channel 205 in a one-way mode is arranged in the valve body 701, and the outer end of the valve body 701 is provided with a connector 703.

Further, the left end cover 2 is further provided with an exhaust channel 206, the right end cover 3 is provided with a third channel 301, a first threaded hole 302 and a second threaded hole 303, the first threaded hole 302 and the second threaded hole 303 are both communicated with the right cavity 102 through the third channel 301, and a one-way valve 901 which is opened in a one-way manner towards the third channel 301 is screwed in each of the first threaded hole 302 and the second threaded hole 303; the first threaded hole 302 and the open end of the exhaust channel 206 are screwed with a cock 11; the pressure gauge 9 is screwed at the opening end of the second threaded hole 303.

Further, the nozzle interface 204 is provided with a nozzle 8, and the nozzle 8 is an atomizing nozzle.

The utility model has the advantages that: the utility model provides a pair of temperature sensing glass ball starts nitrogen gas drive formula extinguishing device and installs after using the place, when the position conflagration of locating takes place, the glass ball breaks, sealing spool moves its seal segment on a left side and breaks away from first passageway, the piston moves on a left side under the pressure effect of driving gas and extrudes into first cavity via first passageway by installing the nozzle blowout on the nozzle interface with fire extinguishing medium, put out a fire, trigger sensor is to fire extinguishing system signals simultaneously, fire extinguishing medium flows through the pipeline weak point, response speed is fast, degree of automation is high, compare with prior art and have substantive characteristics and progress.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a left side view of the present invention;

FIG. 4 isbase:Sub>A sectional view taken along line A-A of FIG. 3;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 6 is a cross-sectional view taken at C-C of FIG. 2;

FIG. 7 is a partial cross-sectional view of E-E of FIG. 3;

fig. 8 is an enlarged view of a feedback assembly according to the present invention in partial section.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-8, a temperature sensing glass ball starting nitrogen driving type fire extinguishing apparatus includes a cylinder body 1, a feedback assembly 6, a piston 4 movably disposed in the cylinder body 1, a left end cap 2 and a right end cap 3 fixedly and hermetically connected to two ends of the cylinder body 1, respectively, a left cavity 101 formed between the piston 4 and the left end cap 2, a right cavity 102 formed between the piston 4 and the right end cap 3, the left cavity 101 for storing fire extinguishing medium, the right cavity 102 for storing driving gas, wherein the driving gas is nitrogen; the left end cover 2 is provided with a first cavity 202 and a nozzle interface 204; the first cavity 202 is communicated with the left cavity 101 through a first channel 201, and the nozzle port 204 is communicated with the first cavity 202; the left end cover 2 is provided with a temperature sensing trigger component 5 for starting the fire extinguishing device to enable fire extinguishing media to be sprayed out from the nozzle interface 204, and the temperature sensing trigger component 5 comprises a glass ball 502 and a sealing valve core 503 which is supported by the glass ball 502 to seal the first channel 201; the nozzle interface 204 is provided with the nozzle 8, usually the nozzle 8 is an atomizing nozzle, thus, when a fire disaster occurs at the position of the fire extinguishing apparatus provided by the technical scheme, the glass ball 502 is broken, the left end of the sealing valve core 503 loses the supporting force, the piston 4 moves leftwards under the pressure of the driving gas to extrude the fire extinguishing medium to generate thrust to the right end of the sealing valve core 503, the sealing valve core 503 moves leftwards to separate the sealing section thereof from the first channel 201 to remove the blockage, the fire extinguishing medium is extruded into the first cavity 202 through the first channel 201 and is atomized and sprayed out by the nozzle 8 installed on the nozzle interface 204 to extinguish the fire, meanwhile, the feedback assembly 6 is triggered to send a signal to a fire extinguishing system, the fire extinguishing medium is short in flowing pipeline, the response speed is high, and the automation degree is high.

Preferably, the temperature sensing trigger assembly 5 further comprises a retaining body 501 and a first spring 504, the retaining body 501 is screwed at the open end of the first cavity 202, a third cavity 5011 and a fourth cavity 5012 are coaxially communicated and arranged in the retaining body 501, the seal valve core 503 is slidably assembled in the third cavity 5011, one end of the glass ball 502 is abutted against the bottom of the fourth cavity 5012, and the other end is abutted against the left end of the seal valve core 503; at least a part of the peripheral wall of the fourth cavity 5012 is hollowed out to expose the glass ball 502, specifically, three hollows (as shown in fig. 1 and 3) are uniformly distributed on the peripheral wall of the fourth cavity 5012 in the area where the glass ball 502 is located in the circumferential direction, and the included angle of each hollow is 120 degrees, so that the stability of the assembled glass ball 502 is ensured, the temperature sensing surface is wide, no dead angle is caused, and the temperature sensing sensitivity is favorably ensured; the first spring 504 is sleeved at the right end of the sealing valve core 503 to prop the sealing valve core 503 against the glass ball 502, so that after assembly, the sealing valve core 503 and the glass ball 502 form a stable supporting structure to prevent the glass ball 502 from falling; a second sealing ring 506 is arranged between the sealing valve core 503 and the fourth cavity 5012, a ring groove is usually processed in the fourth cavity 5012, and the second sealing ring 506 is installed in the processed ring groove, so that when the glass ball 502 is broken and the fire extinguishing apparatus is started, the sealing valve core 503 can be kept moving smoothly, the fire extinguishing medium can be prevented from leaking between the sealing valve core 503 and the fourth cavity 5012, and the fire extinguishing medium can be completely atomized and sprayed out from the nozzle 8.

Preferably, the right end of the sealing valve core 503 is provided with a sealing part, the outer diameter of the sealing part is matched with the inner diameter of the first channel 201, the sealing part is sleeved with a first sealing ring 505, at least one part of the sealing part extends into the first channel 201 when the first channel 201 is blocked, so that the first sealing ring 505 is in sealing contact with the inner wall of the first channel 201, the stability of the fire extinguishing apparatus on duty is ensured, no fire extinguishing medium leaks, and the stability of the fire extinguishing apparatus is improved.

Preferably, the feedback assembly 6 is mounted on the left end cover 2 and includes a sensor 601, a self-locking pin 605, a trigger pin 607, and a second cavity 203 disposed on the left end cover 2, the second cavity 203 is communicated with the first cavity 202, the trigger pin 607 is movably mounted in the second cavity 203, the sensor 601 is screwed in the first hollow nut 602, the first hollow nut 602 is screwed in the open end of the second cavity 203, a second spring 603 is disposed between the first hollow nut 602 and the trigger pin 607 to separate the trigger pin 607 from the adjacent two end faces of the sensor 601, the self-locking pin 605 is radially disposed relative to the trigger pin 607, a third spring 606 is disposed at the left end of the self-locking pin 605, and when the trigger pin 607 moves to the position of the trigger sensor 601, the third spring 606 pushes the right end of the self-locking pin 605 to be clamped in a ring groove 6071 on the trigger pin 607; a flange 6051 is arranged in the middle of the self-locking pin 605, the flange 6051 is matched in a fifth cavity 6041 of the second hollow nut 604 in a sliding way, the left end of the self-locking pin 605 extends through and extends out of the left end of the second hollow nut 604, the third spring 606 is arranged in the fifth cavity 6041, one end of the third spring is abutted against the bottom surface of the fifth cavity 6041, the other end of the third spring is abutted against the left end surface of the flange 6051, and the second hollow nut 604 is connected with the left end cover 2 in a screwing way; thus, when fire extinguishing medium enters the first cavity 202 from the first channel 201 and flows to the nozzle 8, the fire extinguishing medium pushes the trigger pin 607 to move towards the sensor 601 so as to trigger the sensor 601, at the moment, the ring groove 6071 on the trigger pin 607 is just aligned with the right end of the self-locking pin 605, the right end of the self-locking pin 605 is clamped into the ring groove 6071, self-locking is realized, the sensor 601 continuously sends a signal for starting the fire extinguishing device to a fire extinguishing system, the trigger pin 607 can reset under the action of the second spring 603 until the left end of the self-locking pin 605 is manually pulled so as to separate the right end of the self-locking pin 605 from the ring groove 6071, the sensor 601 stops sending the signal, and the reliability of the fire extinguishing device is further improved; the sensor 601 may employ a prior art cylindrical proximity sensor or proximity switch.

Preferably, the left end cover 2 is further provided with a fire extinguishing agent adding assembly 7, the fire extinguishing agent adding assembly 7 comprises a valve body 701, the valve body 701 is screwed on the left end cover 2 and is communicated with a second channel 205 arranged in the left end cover 2, the second channel 205 is communicated with the left cavity 101, a one-way valve core 702 which is opened towards the second channel 205 in a one-way mode is arranged in the valve body 701, and the outer end of the valve body 701 is provided with a connector 703; therefore, when fire extinguishing medium is filled, the one-way valve core 702 can be automatically opened to fill the fire extinguishing medium into the left cavity 101 only by butting the flushing pipeline joint with the interface 703, and the operation is convenient and simple.

Preferably, the left end cover 2 is further provided with an exhaust channel 206, the right end cover 3 is provided with a third channel 301, a first threaded hole 302 and a second threaded hole 303, the first threaded hole 302 and the second threaded hole 303 are both communicated with the right cavity 102 through the third channel 301, and a one-way valve 901 which is opened in one way towards the third channel 301 is screwed in each of the first threaded hole 302 and the second threaded hole 303; the open ends of the first threaded hole 302 and the exhaust channel 206 are screwed with the cocks 11, the cocks 11 are used for sealing the first threaded hole 302 and the exhaust channel 206, so as to prevent external dust and impurities from entering and prevent the fire extinguishing medium or driving gas from leaking, when the fire extinguishing medium is filled, the cocks 11 at the exhaust channel 206 are screwed out to exhaust the air in the left cavity 101, and the fire extinguishing medium is completely filled in the left cavity 101; manometer 9 is screwed in second screw hole 303 open end for show the real-time pressure of drive gas, the daily inspection maintenance of being convenient for, when manometer 9 takes off, its corresponding check valve 901 self-closing, usually, the case of this check valve 901 has the extension section, and when manometer 9 adorned, terminal surface and extension section contact before the installation department of manometer 9 made this check valve 901 open, made right cavity 102 and manometer 9 intercommunication carry out the pressure measurement.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a temperature sensing glass ball starts nitrogen gas drive formula extinguishing device, includes cylinder body (1), feedback subassembly (6), the activity is located piston (4) in cylinder body (1), fixed sealing connection respectively are in left end lid (2) and right-hand member lid (3) at cylinder body (1) both ends, piston (4) with constitute left cavity (101) between left end lid (2), piston (4) with constitute right cavity (102), its characterized in that between right-hand member lid (3): the left cavity (101) is used for storing fire extinguishing media, the right cavity (102) is used for storing driving gas, and the left end cover (2) is provided with a first cavity (202) and a nozzle interface (204); the first cavity (202) is communicated with the left cavity (101) through a first channel (201), and the nozzle interface (204) is communicated with the first cavity (202); the left end cover (2) is provided with a temperature sensing trigger component (5) for starting the fire extinguishing device to enable the fire extinguishing medium to be sprayed out from the nozzle interface (204), and the temperature sensing trigger component (5) comprises a glass ball (502) and a sealing valve core (503) supported by the glass ball (502) to seal the first channel (201).

2. The nitrogen-driven fire extinguishing apparatus started by the temperature sensing glass balls according to claim 1, characterized in that: the temperature sensing trigger component (5) further comprises a holding body (501) and a first spring (504), the holding body (501) is screwed at the opening end of the first cavity (202), a third cavity (5011) and a fourth cavity (5012) are coaxially communicated in the holding body (501), the sealing valve core (503) is assembled in the third cavity (5011) in a sliding mode, one end of the glass ball (502) is abutted to the bottom of the fourth cavity (5012), and the other end of the glass ball is abutted to the left end of the sealing valve core (503); at least one part of the peripheral wall of the fourth cavity (5012) is hollowed out to expose the glass ball (502), the first spring (504) is sleeved at the right end of the sealing valve core (503) to push the sealing valve core (503) to the glass ball (502), and a second sealing ring (506) is arranged between the sealing valve core (503) and the fourth cavity (5012).

3. The temperature-sensing glass ball-started nitrogen-driven fire extinguishing device according to claim 2, characterized in that: the right end of the sealing valve core (503) is provided with a sealing part, the outer diameter of the sealing part is matched with the inner diameter of the first channel (201), the sealing part is sleeved with a first sealing ring (505), and at least one part of the sealing part extends into the first channel (201) when the first channel (201) is blocked, so that the first sealing ring (505) is in sealing contact with the inner wall of the first channel (201).

4. The temperature-sensing glass ball-activated nitrogen-driven fire extinguishing device according to claim 1, characterized in that: the feedback assembly (6) is arranged on the left end cover (2) and comprises a sensor (601), a self-locking pin (605), a trigger pin (607) and a second cavity (203) arranged on the left end cover (2), the second cavity (203) is communicated with the first cavity (202), the trigger pin (607) is movably arranged in the second cavity (203), the sensor (601) is screwed in a first hollow nut (602), the first hollow nut (602) is screwed in an opening end of the second cavity (203), a second spring (603) is arranged between the first hollow nut (602) and the trigger pin (607) to enable the trigger pin (607) and two adjacent end faces of the sensor (601) to be away from each other, the self-locking pin (605) is radially arranged relative to the trigger pin (607), a third spring (606) is arranged at the left end of the self-locking pin (605), and when the trigger pin (607) moves to a position for triggering the sensor (601), the third spring (606) pushes the self-locking pin (607) to be clamped into a right end ring groove (6071) on the trigger pin (605).

5. The temperature-sensing glass ball-activated nitrogen-driven fire extinguishing device according to claim 4, characterized in that: the middle of the self-locking pin (605) is provided with a flange (6051), the flange (6051) is matched with a fifth cavity (6041) of the second hollow nut (604) in a sliding mode, the left end of the self-locking pin (605) extends through and extends out of the left end of the second hollow nut (604), the third spring (606) is arranged in the fifth cavity (6041), one end of the third spring is abutted to the bottom surface of the fifth cavity (6041), the other end of the third spring is abutted to the left end face of the flange (6051), and the second hollow nut (604) is connected with the left end cover (2) in a screwing mode.

6. The temperature-sensing glass ball-activated nitrogen-driven fire extinguishing device according to claim 1, characterized in that: still installed on left end lid (2) and added fire extinguishing agent subassembly (7), add fire extinguishing agent subassembly (7) including valve body (701), valve body (701) are fitted soon on left end lid (2) and with locate second passageway (205) intercommunication in left end lid (2), second passageway (205) with left cavity (101) intercommunication, the built-in orientation that is equipped with of valve body (701) one-way valve core (702) of opening of second passageway (205), valve body (701) outer end is equipped with interface (703).

7. The nitrogen-driven fire extinguishing apparatus started by the temperature sensing glass ball according to claim 6, characterized in that: the left end cover (2) is further provided with an exhaust channel (206), the right end cover (3) is provided with a third channel (301), a first threaded hole (302) and a second threaded hole (303), the first threaded hole (302) and the second threaded hole (303) are communicated with the right cavity (102) through the third channel (301), and one-way valves (901) which are opened towards the third channel (301) in a one-way mode are screwed in the first threaded hole (302) and the second threaded hole (303); a cock (11) is screwed in the first threaded hole (302) and the open end of the exhaust channel (206); the pressure gauge (9) is screwed at the opening end of the second threaded hole (303).

8. The nitrogen-driven fire extinguishing apparatus started by the temperature sensing glass balls according to claim 1, characterized in that: the nozzle interface (204) is provided with a nozzle (8), and the nozzle (8) is an atomizing nozzle.