CN115681096A - Inflator - Google Patents

Abstract

The invention discloses an inflatable pump, comprising: a casing, on which an air suction port and an air inlet are arranged; The air inlet is connected; the opening and closing mechanism is arranged at the air inlet, and the opening and closing mechanism is used to open or close the air inlet. The air pump provided by the invention effectively solves the problem that the air pump in the prior art has no air pumping function.

Description

Inflator

technical field

The present invention relates to the technical field of inflatable equipment, in particular to an inflatable pump.

Background technique

With the development of society and the advancement of science and technology, people's material and cultural living standards have been greatly improved. At present, many young people like outdoor life, driving or cycling, and it is inevitable that there will be problems with insufficient tire pressure. Therefore, the air pump has become a rigid demand. Traditional air pumps are bulky and inconvenient to carry. Most of them are placed in a fixed position for use. Nowadays, there are portable air pumps in the market, which are small in size, very convenient to carry, and do not take up space at all. The portable air pump has become an electrical appliance that needs to be kept in daily life and outdoor activities.

The air pump includes a motor, a transmission component, a piston rod, a one-way valve and a cylinder. The principle is that the motor drives the transmission component to make the piston rod reciprocate in the cylinder to realize the function of pumping air; the piston rod is provided with a shrapnel on one side of the cylinder. When pumping air, the outside air pushes the shrapnel from the other side of the piston rod and enters the cylinder. When inflating, the shrapnel of the piston rod closes, and the gas in the cylinder is squeezed and opens the one-way valve at the end of the cylinder to enter the inflated object. .

At present, most of the air pumps on the market just use the inflating function of the air pump to inflate the object, while the negative pressure generated by the suction at the other end is ignored during the pumping process, and many young people like outdoor camping at present, so they will inevitably use it. Many inflatable items, such as swimming rings, rubber boats, inflatable tents, air mattresses, etc., need to be deflated and folded manually after use, and the gas cannot be completely emptied in a no-pressure state, resulting in Storage remains unchanged. In the prior art, the function of the air pump is single, it only has the function of inflating air, and has no function of pumping air, which cannot meet the needs of users.

To sum up, the air pumps in the prior art do not have the function of pumping air.

Contents of the invention

An air pump is provided in an embodiment of the present invention to solve the problem that the air pump in the prior art has no air pumping function.

In order to achieve the above object, the present invention provides an air pump, comprising: a casing, the casing is provided with a suction port and an air inlet; a cylinder, the cylinder is arranged in the casing, the cylinder has a suction port, and the suction port communicates with the suction port , the suction port communicates with the air inlet; the opening and closing mechanism is arranged at the air inlet, and the opening and closing mechanism is used to open or close the air inlet.

Further, the opening and closing mechanism includes: a sliding grille, which is movably arranged on the casing, the sliding grille is located at the air inlet, and the sliding grille opens or closes the air inlet by moving.

Further, the sliding grille is provided with air holes; the sliding grille has a first position where the air hole and the air inlet are staggered and the air inlet is closed; the sliding grille has a function of making the air hole communicate with the air inlet and opening the air inlet. The second position of the sliding grille is switched between the first position and the second position by moving.

Further, the air inlet includes at least one grille hole arranged on the casing, and the grille hole is set correspondingly to the vent hole; when the sliding grille is in the first position, all the grille holes are staggered from the vent hole; When in the second position, all grill holes communicate with the vent holes.

Further, the opening and closing mechanism further includes: a toggle piece, which is drivingly connected to the sliding grille, and the movement of the toggle piece drives the sliding grille to move.

Further, the toggle piece is located at the air suction port, and the toggle piece has an abutment surface matched with the air nozzle; when the air nozzle is installed to the air suction port, the air nozzle abuts against the abutment surface of the toggle piece and drives the abutment surface of the toggle piece. The moving part moves; when the air nozzle is fixed at the air suction port, the moving part drives the sliding grille to switch to the first position.

Further, the toggle has a push position and a default position; when the toggle is at the push position, the sliding grill is at the first position; when the toggle is at the default position, the slide grill is at the second position.

Further, the opening and closing mechanism further includes: an elastic return member, one end of the elastic return member is connected to the toggle member, and the other end is connected to the housing, and the force of the elastic return member is used to reset the toggle member to the default position of the toggle member .

Further, the toggle piece has a matching protrusion, the sliding grid has a matching hole, and the matching protrusion is inserted into the matching hole.

Further, the matching protrusion has a first slope; the inner wall of the matching hole has a second slope, the first slope and the second slope are abutted and driven to fit, and the driving member is driven to slide through the driving fit of the first slope and the second slope The grill moves.

Further, the toggle member is movably connected to the casing.

Further, the air suction port is provided with threads or buckles, and the air suction port can be connected to an air nozzle.

Further, the toggle piece has an avoidance hole through which the air nozzle passes.

Further, a negative pressure zone is formed inside the casing, and the negative pressure zone is connected with the suction port of the cylinder, and both the air intake port and the suction port are connected with the negative pressure zone.

When the air pump is inflated, the opening and closing mechanism opens the air inlet, and the air inlet introduces external air to the air intake port of the cylinder for the cylinder to be inflated, so as to realize the inflating function of the air pump. When the air pump needs to pump air, the opening and closing mechanism closes the air inlet, and the air can only enter from the air inlet. At this time, the air outlet is aimed at the item that needs to be pumped to pump air, and then realizes the air pump function. The air pump can realize two functions of inflating and pumping air. It can not only inflate common items such as car tires, bicycle tires and basketballs, but also can be used in storage bags that need to be pumped, or inflatable tents, swimming rings and other items. Air pumping and emptying can effectively reduce the volume of items and facilitate storage.

Description of drawings

1 is a schematic diagram of the internal structure of an air pump according to an embodiment of the present invention;

Fig. 2 is a schematic cross-sectional view of the air pump in the embodiment of the present invention in the air pumping function;

Fig. 3 is another schematic cross-sectional view of the air pump in the embodiment of the present invention in the air pumping function;

Fig. 4 is a schematic diagram of an exploded structure of an air pump according to an embodiment of the present invention;

Fig. 5 is a schematic diagram of the structural cooperation of the sliding grille and the toggle piece of the air pump according to the embodiment of the present invention;

Fig. 6 is a schematic cross-sectional view of the sliding grille and the toggle piece in Fig. 5;

Fig. 7 is a schematic diagram of the external structure of the air pump in the embodiment of the present invention in the air charging function;

Fig. 8 is a schematic diagram of the external structure of the air pump in the embodiment of the present invention in the air pumping function.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

Referring to Figures 1 to 8, according to an embodiment of the present invention, an air pump is provided, the air pump includes a housing 10, a cylinder 20 and an opening and closing mechanism, and the housing 10 is provided with an air inlet 11 and an air inlet 12; Cylinder 20 is arranged in shell 10, and cylinder 20 has suction port 21, and suction port 21 communicates with suction port 11, and suction port 21 communicates with air inlet 12; The closing mechanism is used to open or close the air inlet 12.

When the air pump is inflated, the opening and closing mechanism opens the air inlet, and the air inlet introduces external air to the air intake port of the cylinder for the cylinder to be inflated, so as to realize the inflating function of the air pump. When the air pump needs to pump air, the opening and closing mechanism closes the air inlet, and the air can only enter from the air inlet. At this time, the air outlet is aimed at the item that needs to be pumped to pump air, and then realizes the air pump function. The air pump can realize two functions of inflating and pumping air. It can not only inflate common items such as car tires, bicycle tires and basketballs, but also can be used in storage bags that need to be pumped, or inflatable tents, swimming rings and other items. Air pumping and emptying can effectively reduce the volume of items and facilitate storage.

Preferably, the opening and closing mechanism includes a sliding grille 31 movably disposed on the casing 10 , the sliding grille 31 is located at the air inlet 12 , and the sliding grille 31 opens or closes the air inlet 12 by moving. The sliding grille 31 can be arranged on the housing 10 through a slide rail structure to realize sliding, and of course, other existing ways can also be used to realize the moving arrangement.

Sliding grille 31 is provided with air vent 31a; Sliding grille 31 has the first position that makes air vent 31a and air inlet 12 stagger and closes air inlet 12; Sliding grille 31 has air vent 31a and air inlet 12 Connecting and opening the second position of the air inlet 12, the sliding grille 31 is switched between the first position and the second position by moving. As shown in FIG. 4 and FIG. 5 , the sliding grille 31 slides to open or close the air inlet 12 , and the shape of the air inlet matches the shape of the air hole 31 a, and the shape is not specifically limited.

Referring to Fig. 4, the air inlet 12 includes a plurality of groups of grill holes arranged on the housing 10, and the grill holes are arranged corresponding to the vent holes 31a; when the sliding grill 31 is in the first position, all the grill holes and the vent holes 31a Staggered; when the sliding grill 31 is in the second position, all the grill holes communicate with the vent holes 31a. There is at least one group of grill holes, and each group of grill holes has at least one grill hole. The arrangement of the grill holes corresponds to the arrangement of the ventilation holes 31a. The grill holes can be round holes or other shapes of grills. holes, the sum of the flow areas of all grill holes can ensure the air intake needs of the air pump.

In this embodiment, the opening and closing mechanism further includes a toggle piece 32, which is movably connected to the housing 10, and the toggle piece 32 is drivingly connected to the sliding grille 31, and the toggle piece 32 drives the sliding grid by moving. The grid 31 moves. The shape and structure of the toggle member 32 is not specifically limited, the toggle member 32 can be a toggle structure that can be operated by the user, and the user can manually operate the toggle member, so that the sliding grill can be moved between the first position and the second position Switch to meet the functional needs of inflating or pumping air.

In order to facilitate operation and improve user experience, and further optimize the structure, the toggle piece 32 is located at the air outlet 11, and the toggle piece 32 has an abutment surface 321 that cooperates with the air nozzle 40; when the air nozzle 40 is installed on the air outlet 11 , the air nozzle 40 abuts against the abutting surface 321 of the toggle piece 32, and the toggle piece 32 is driven to move by moving the air nozzle 40; when the air nozzle 40 is fixed at the air inlet 11, the toggle piece 32 drives the sliding grille 31 Switch to the first position. That is to say, when the user needs an air suction function, the air nozzle will be installed on the air suction port. During the installation of the air nozzle, the air nozzle will directly form a linkage with the toggle piece 32, driving the toggle piece to move and simultaneously using Slide the grille to switch to the first position. When the air nozzle 40 is fixed on the air inlet 11, the air inlet is closed, and only the air outlet is opened. After the cylinder of the air pump is started, the gas only enters the air inlet of the cylinder from the air outlet, and the pressure of the air outlet is very large, completely It can pump the items to be pumped to a near vacuum state. When the air nozzle 40 is fixed on the air charging port, the air inlet is opened, the air suction port is opened, and after the cylinder of the air pump is started, the gas enters the suction port of the cylinder from the air suction port and the air intake port, and the gas is discharged from the air charging port through the cylinder. , to inflate the item.

Preferably, the moving direction of the toggle member 32 is parallel to the installation direction of the air nozzle 40 to the air suction port 11, and the installation direction of the air nozzle 40 through buckle or screw connection is the direction of arrow A shown in FIG. 2 . The moving direction of the lower toggle member 32 is also the arrow A direction. The toggle member 32 has a push position and a default position, and the toggle member 32 moves between the push position and the default position. When the toggle member 32 is at the pushing position, the sliding grille 31 is at the first position; when the toggle member 32 is at the default position, the sliding grille 31 is at the second position. This can ensure that the force on the toggle member 32 is more uniform, and the movement of the toggle member 32 is more stable. The air pump is under the inflation function, the air inlet is opened, and the toggle is in the default position.

The opening and closing mechanism also includes an elastic return member 33. One end of the elastic return member 33 is connected to the toggle member 32, and the other end is connected to the housing 10. The active force of the elastic return member 33 is used to reset the toggle member 32 to the toggle member 32. the default location for . The function of the elastic return member 33 is that when the air nozzle is removed from the air inlet, the elastic return member 33 resets the toggle member 32 to the default position, the air inlet is reopened, and the air pump returns to the default inflation mode. Such a structural setting is also convenient for users to use, and the inflation function of the air pump will not be disabled due to forgetting to reset the toggle member 32 . In this embodiment, the elastic return member 33 is a spring, and the spring can be sleeved on the outer periphery of the air suction port, and the air suction port is in the shape of a round hole. When the air nozzle is installed on the air inlet 11, the elastic return member 33 is compressed, so that the toggle member 32 moves from the default position to the pushed position, so that the sliding grille 31 slides from the second position to the first position, and the air inlet 12 is closed. .

As shown in FIG. 5 and FIG. 6 , the toggle member 32 has a matching protrusion 322 , and the matching protrusion 322 has a first inclined surface 51 . The sliding grid 31 has a fitting hole 31b, the inner wall of the fitting hole 31b has a second slope 52, and the fitting protrusion 322 is inserted in the fitting hole 31b, the first slope 51 and the second slope 52 abut and drive to cooperate, and the toggle member 32 The sliding grid 31 is driven to move through the driving cooperation of the first slope 51 and the second slope 52 . The cooperation of the first inclined surface 51 and the second inclined surface 52 makes the moving direction B of the toggle member 32 and the moving direction C of the sliding grid 31 form an included angle, and the included angle is preferably 90°, that is, the vertical direction. In this way, the arrangement of the two structures can be more fitted to the shell of the air pump, the structural layout can save space, the structure is simpler and firmer, and the maintenance is quick.

When the user needs to inhale, the air nozzle is installed on the suction port 11 by screwing, the elastic return member 33 is compressed, and the toggle member 32 moves from the default position to the push position, so that the sliding grille 31 connected with the toggle member 32 moves along the The casing is slidably connected, so that the sliding grille 31 slides from the second position to the first position. At this time, the air hole 31a is staggered from the air inlet 12, and the air inlet 12 is closed; when the user does not need to inhale, unscrew the air nozzle The air nozzle is separated from the air suction port 11, and since it is not compressed by the air nozzle, the elastic return member 33 rebounds from the compressed state, and the toggle piece 32 moves from the push position to the default position, so that the sliding grille 31 connected with the toggle piece 32 moves along the The housing is slidably connected, so that the sliding grille 31 slides from the first position to the second position. At this time, the vent hole 31a communicates with the air inlet 12, and the air inlet 12 is opened.

The air suction port 11 is provided with threads or buckles, and the air suction port 11 can be connected with the air nozzle 40 . The structure provided at the air outlet is convenient for the connection of the air nozzle (including the air pipe and pipeline joint), so that the air suction function can be realized by directly connecting the air nozzle to the air outlet, which is simple and practical. In this embodiment, the air suction port is provided with an internal thread, and the pipe joint of the air nozzle is provided with an external thread, and the two are threaded together, and the specific shape is shown in Fig. 2 and Fig. 4 .

The air nozzle of the air pump is detachably connected to the air charging port, and the air nozzle can be detachably connected to the air suction port at the same time. In this embodiment, both the air charging port and the air suction port of the air pump are provided with internal threads, and the pipe joints of the air nozzle are provided with matching external threads. When the inflation function is required, the air nozzle is installed on the inflation port by screwing, and the structural fit is shown in Figure 7; when the suction function is required, the air nozzle is installed on the air suction port by screwing, and the structural fit is shown in Figure 8. The connection method of the air nozzle can also be in the form of buckle, which is not specifically limited here, as long as it can be installed and disassembled.

Referring to FIG. 4 and FIG. 5 , the toggle member 32 has an escape hole 32 a through which the air nozzle 40 passes. When the air nozzle is installed to the air outlet, it will pass through the escape hole 32a. The outer periphery of the avoidance hole 32a is the abutment surface 321. The abutment surface is annular, and the annular surface just abuts and fits with the step of the pipeline joint of the air nozzle. The shape of the escape hole 32a can be circular or other shapes, mainly to match the shape of the butt joint of the gas nozzle, so that the gas nozzle and the air suction port 11 can be easily connected.

A negative pressure area 60 is formed inside the casing 10 , and the negative pressure area 60 communicates with the suction port 21 of the cylinder 20 , and both the air intake port 12 and the suction port 11 communicate with the negative pressure area 60 . Referring to Figure 1, the negative pressure area refers to a part of the internal space, which is under negative pressure when the cylinder does work. The negative pressure area can be a regular space or a space adjacent to other parts. The specific shape is completely based on Depending on the internal structure of the air pump, as long as it is connected to the suction port and connected to the air inlet and the suction port at the same time, it can be called a negative pressure area. No matter the gas entering from the intake port and/or the suction port will first enter the negative pressure zone, and then enter the cylinder.

It should be noted that the terminology used here is only used to describe specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

It should be noted that the terms "first" and "second" in the specification and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein can be practiced in sequences other than those illustrated or described herein.

Of course, the above are preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications can be made without departing from the basic principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims (14)

1. An inflator, comprising:

the air conditioner comprises a shell (10), wherein an air suction port (11) and an air inlet (12) are formed in the shell (10);

the air cylinder (20), the air cylinder (20) is arranged in the shell (10), the air cylinder (20) is provided with an air suction port (21), the air suction port (21) is communicated with the air suction port (11), and the air suction port (21) is communicated with the air inlet (12);

an opening and closing mechanism provided at the intake port (12), the opening and closing mechanism being for opening or closing the intake port (12).

2. The inflator of claim 1, wherein the opening and closing mechanism comprises:

a sliding grill (31), the sliding grill (31) being movably disposed on the housing (10), the sliding grill (31) being located at the air inlet (12), the sliding grill (31) opening or closing the air inlet (12) by moving.

3. The inflator of claim 2,

the sliding grid (31) is provided with a vent hole (31 a); the sliding grill (31) having a first position in which the ventilation hole (31 a) is offset from the air inlet (12) and closes the air inlet (12); the sliding grill (31) has a second position where the ventilation hole (31 a) communicates with the intake port (12) and opens the intake port (12), and the sliding grill (31) is switched between the first position and the second position by moving.

4. Inflator according to claim 3, wherein said air inlet (12) comprises at least one grille hole provided on said outer casing (10), said grille hole being provided in correspondence of said vent hole (31 a);

-when the sliding grid (31) is in a first position, all the grid holes are staggered from the ventilation holes (31 a);

when the sliding grid (31) is located at the second position, all the grid holes are communicated with the vent holes (31 a).

5. The inflator of claim 3, wherein the opening and closing mechanism further comprises:

the poking piece (32), the poking piece (32) is in driving connection with the sliding grid (31), and the poking piece (32) moves to drive the sliding grid (31) to move.

6. The inflator of claim 5,

the stirring piece (32) is positioned at the air suction opening (11), and the stirring piece (32) is provided with a butting surface (321) matched with the air nozzle (40);

in the process that the air nozzle (40) is installed on the air suction opening (11), the air nozzle (40) is abutted against the abutting surface (321) of the toggle piece (32) and drives the toggle piece (32) to move; and under the condition that the air nozzle (40) is fixed on the air suction opening (11), the stirring piece (32) drives the sliding grating (31) to be switched to the first position.

7. The inflator of claim 6,

the toggle member (32) having a push position and a default position;

when the toggle piece (32) is at the pushing position, the sliding grid (31) is located at the first position;

when the toggle piece (32) is in the default position, the sliding grid (31) is located in the second position.

8. The inflator of claim 7, wherein the opening and closing mechanism further comprises:

the spring return piece (33), one end of the spring return piece (33) is connected with the toggle piece (32), the other end of the spring return piece (33) is connected with the shell (10), and the acting force of the spring return piece (33) is used for resetting the toggle piece (32) to the default position of the toggle piece (32).

9. The inflator of claim 5,

the toggle piece (32) is provided with a matching projection (322),

the sliding grid (31) has a fitting hole (31 b), and the fitting protrusion (322) is inserted in the fitting hole (31 b).

10. Inflator according to claim 9, wherein the engagement projection (322) has a first bevel (51) thereon; the inner wall of the matching hole (31 b) is provided with a second inclined surface (52), the first inclined surface (51) and the second inclined surface (52) are abutted and in driving matching, and the poking piece (32) is in driving matching with the first inclined surface (51) and the second inclined surface (52) to drive the sliding grid (31) to move.

11. Inflator according to any one of claims 5 to 10,

the toggle piece (32) is movably connected to the housing (10).

12. Inflator according to claim 6 or 7,

the air pumping hole (11) is provided with threads or a buckle, and the air pumping hole (11) can be connected with the air tap (40).

13. Inflator according to claim 6 or 7,

the toggle piece (32) is provided with an avoidance hole (32 a) for the air nozzle (40) to pass through.

14. The inflator of claim 1,

a negative pressure area (60) is formed inside the shell (10), the negative pressure area (60) is communicated with an air suction port (21) of the air cylinder (20), and the air inlet (12) and the air suction port (11) are communicated with the negative pressure area (60).

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