CN217635744U - Air inlet structure of igniter - Google Patents
Air inlet structure of igniter Download PDFInfo
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- CN217635744U CN217635744U CN202221552872.5U CN202221552872U CN217635744U CN 217635744 U CN217635744 U CN 217635744U CN 202221552872 U CN202221552872 U CN 202221552872U CN 217635744 U CN217635744 U CN 217635744U
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- air inlet
- valve body
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- intake
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Abstract
The utility model discloses an some firearm air inlet structure, some firearm air inlet structure installs the bottom at the gas tank, some firearm air inlet structure includes the valve body, valve body fixed mounting is in the bottom of gas tank, be equipped with the gas needle subassembly in the valve body, the lower extreme threaded connection of valve body has the air inlet cap that is used for restricting the gas needle subassembly in the valve body. Adopt this kind of connected mode, make the bottom of AS plastics gas tank need not to process the screw hole on the one hand, directly improve production efficiency in the bottom of gas tank with valve body ultrasonic welding greatly, on the other hand admit air cap threaded connection in the valve body, can realize that the gas needle subassembly is dismantled and assembled according to the maintenance needs.
Description
Technical Field
The utility model relates to an some firearm technical field especially relates to an some firearm air inlet structure.
Background
In order to achieve repeated use of existing igniters such as flame guns and lighters, an air inlet structure is generally arranged at the bottom of an air box. The valve body of the existing air inlet structure is generally installed at the bottom of an air box in a threaded connection or ultrasonic welding mode, and when the threaded connection mode is adopted, the operation of machining a threaded hole at the bottom of the air box is troublesome because the air box is mostly made of plastic materials; when the ultrasonic welding is adopted, the valve body is welded with the bottom of the gas tank, and the disassembly and maintenance cannot be realized.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects existing in the prior art, the utility model provides an air inlet structure of an igniter.
The technical scheme of the utility model is realized like this:
the utility model provides an some firearm air inlet structure, some firearm air inlet structure installs in the bottom of gas tank, some firearm air inlet structure includes the valve body, valve body fixed mounting is in the bottom of gas tank, be equipped with the gas needle subassembly in the valve body, the lower extreme threaded connection of valve body has the air inlet cap that is used for restricting the gas needle subassembly in the valve body.
Furthermore, the air needle assembly comprises an air inlet needle, a first valve hole with an opening at the lower end is formed in the valve body, a second valve hole extending upwards is formed in the upper end of the first valve hole in the valve body, and an air inlet hole extending upwards is formed in the upper end of the second valve hole in the valve body; the air inlet cap is in threaded connection with an opening at the lower end of the first valve hole, the upper end of the air inlet needle is positioned in the second valve hole, and the lower end of the air inlet needle extends out of the air inlet cap downwards; an annular groove is formed in the outer side of the air inlet needle, a flat gasket is connected to the inside of the annular groove in a sliding mode along the axial direction of the air inlet needle, and the flat gasket is located in the first valve hole and located between the air inlet cap and the upper end of the first valve hole; a first spring for forcing the air inlet needle to move downwards is arranged in the second valve hole; the air inlet needle is internally provided with an air inlet blind hole and an air inlet used for communicating the air inlet blind hole with the annular groove; when the air needle assembly is in a natural state, the air inlet needle is positioned at the lower end position under the action of the first spring, and the flat gasket is in sealing contact with the upper end of the air inlet cap and blocks the air inlet; when the air box is inflated, the air inlet needle is pushed to compress the first spring upwards and move to the upper end position, and the flat gasket is in sealing contact with the lower end of the second valve hole and opens the air inlet.
Further, an exhaust gap is formed between the lower end of the air inlet needle and the air inlet cap, an air inlet gap is formed between the upper end of the air inlet needle and the second valve hole, when the air inlet needle is located at the lower end position, the flat gasket closes the upper end of the exhaust gap and opens the lower end of the air inlet gap, when the air inlet needle is located at the upper end position, the flat gasket opens the upper end of the exhaust gap and closes the lower end of the air inlet gap, and the air inlet is communicated with the air inlet gap.
Furthermore, an annular convex shoulder for ultrasonic welding with the air box is arranged on the outer side of the valve body close to the lower end of the valve body, and an air inlet pipe communicated with the air inlet hole is sleeved at the upper end of the valve body; an exhaust pipe is sleeved on the outer side of the valve body above the annular shoulder; the air inlet pipe is positioned in the exhaust pipe, and the length of the air inlet pipe is greater than that of the exhaust pipe; an exhaust space is formed between the exhaust pipe and the air inlet pipe, and a communicating groove used for communicating the exhaust space and the first valve hole is formed in the valve body.
Through above-mentioned technical scheme, when aerifing to the gas tank in, when gaseous adding to the blast pipe tip, liquid gas is being arranged to the gas tank outside along exhaust space, intercommunication groove, first valve opening, exhaust clearance to realize the function of control air entrainment volume.
Furthermore, the lower extreme opening part of first valve opening is equipped with the sealing washer of cup jointing on the cap of admitting air, sets up the sealing washer and can prevent that gas from revealing.
Further, the valve body is made of a plastic material, and the air inlet cap is made of a copper material.
Implement the utility model discloses an it advances gas structure to carry out some firearm has following beneficial effect: the valve body passes through ultrasonic bonding in the gas tank among this air inlet structure, and air inlet cap threaded connection is used for restricting the gas needle subassembly at the valve body at the lower extreme of valve body, adopts this kind of connected mode, makes the bottom of AS plastics gas tank need not to process the screw hole on the one hand, directly has improved production efficiency greatly with valve body ultrasonic bonding in the bottom of gas tank, and on the other hand air inlet cap threaded connection can realize that the gas needle subassembly is dismantled and assembled according to the maintenance needs in the valve body.
Drawings
Fig. 1 is a cross-sectional view of the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a schematic view of the present invention installed in an air box;
FIG. 4 is an enlarged view of a portion of FIG. 3 at S;
fig. 5 is a structural diagram of the present invention during inflation.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1 to 5, the utility model discloses an some firearm air intake structure installs in the bottom of gas tank 1, and it includes the valve body 2 of being made by the plastics material, 2 fixed mounting of valve body are in the bottom of gas tank 1, be equipped with the gas needle subassembly in the valve body 2, the lower extreme threaded connection of valve body 2 has the air inlet cap 3 that is used for restricting the gas needle subassembly in valve body 2, in this example, air inlet cap 3 is made by copper material. Here valve body 2 is fixed in air box 1 through ultrasonic welding mode, and 3 threaded connection of cap of admitting air is used for restricting the gas needle subassembly at valve body 2 at the lower extreme of valve body 2, adopts this kind of connected mode, makes AS plastics air box 1's bottom need not to process the screw hole on the one hand, directly improves production efficiency greatly with 2 ultrasonic welding of valve body in air box 1's bottom, and 3 threaded connection of cap of admitting air on the other hand can realize the gas needle subassembly dismantled and assembled AS required to overhaul in valve body 2.
The air needle assembly comprises an air inlet needle 4, a first valve hole 2a with an opening at the lower end is arranged in the valve body 2, a second valve hole 2b extending upwards is arranged at the upper end of the first valve hole 2a in the valve body 2, and an air inlet hole 2c extending upwards is arranged at the upper end of the second valve hole 2b of the valve body 2; the air inlet cap 3 is in threaded connection with an opening at the lower end of the first valve hole 2a, the upper end of the air inlet needle 4 is positioned in the second valve hole 2b, and the lower end of the air inlet needle extends out of the air inlet cap 3; an annular groove 4c is formed in the outer side of the air inlet needle 4, a flat gasket 5 is connected in the annular groove 4c in a sliding mode along the axial direction of the air inlet needle 4, and the flat gasket 5 is located in the first valve hole 2a and located between the air inlet cap 3 and the upper end of the first valve hole 2 a; a first spring 8 for forcing the air inlet needle 4 to move downwards is arranged in the second valve hole 2 b; an air inlet blind hole 4a and an air inlet 4b for communicating the air inlet blind hole 4a with the annular groove 4c are formed in the air inlet needle 4; when the air needle assembly is in a natural state, the air inlet needle 4 is positioned at the lower end position under the action of the first spring 8, and the flat gasket 5 is in sealing contact with the upper end of the air inlet cap 3 and blocks the air inlet 4b; when the air box 1 is inflated, the air inlet needle 4 is pushed to compress the first spring 8 upwards and move to the upper end position, and the flat gasket 5 is in sealing contact with the lower end of the second valve hole 2b and opens the air inlet 4 b.
In this embodiment, an exhaust gap 101 is formed between the lower end of the intake needle 4 and the intake cap 3, an intake gap 102 is formed between the upper end of the intake needle 4 and the second valve hole 2b, the flat gasket 5 closes the upper end of the exhaust gap 101 and opens the lower end of the intake gap 102 when the intake needle 4 is at the lower end position, the flat gasket 5 opens the upper end of the exhaust gap 101 and closes the lower end of the intake gap 102 when the intake needle 4 is at the upper end position, and the intake port 4b communicates with the intake gap 102.
An annular convex shoulder 2d for ultrasonic welding with the air box 1 is arranged on the outer side of the valve body 2 close to the lower end, and an air inlet pipe 7 communicated with an air inlet hole 2c is sleeved at the upper end of the valve body 2; an exhaust pipe 6 is sleeved on the outer side of the valve body 2 above the annular convex shoulder 2d, and the lower end of the exhaust pipe 6 abuts against the upper part of the annular convex shoulder 2 d; the air inlet pipe 7 is positioned in the exhaust pipe 6, and the length of the air inlet pipe 7 is greater than that of the exhaust pipe 6; an exhaust space 103 is formed between the exhaust pipe 6 and the intake pipe 7, and a communication groove 2e for communicating the exhaust space 103 with the first valve hole 2a is provided in the valve body 2.
When the air inlet structure is used, the air outlet of the air tank is abutted to the lower end of the air inlet needle 4, the air inlet needle 4 is pushed to move upwards to compress the first spring 8, when the air inlet needle 4 moves to the upper end position, the upper end face of the flat gasket 5 is abutted to the upper end of the first valve hole 2a, the lower end face of the flat gasket 5 is abutted to the lower end of the annular groove 4c, at the moment, the upper end of the exhaust gap 101 is opened by the flat gasket 5, the lower end of the air inlet gap 102 is closed, and the air inlet 4b is opened, so that combustible gas in the air tank passes through the air inlet blind hole 4a of the air inlet needle 4, the air inlet 4b, the air inlet gap 102, the second valve hole 2b, the air inlet hole 2c and the air inlet pipe 7 to enter the air tank 1, and when the gas is added to the end part of the exhaust pipe 6, liquid gas is discharged to the outside of the air tank 1 along the exhaust space 103, the communication groove 2e, the first valve hole 2a and the exhaust gap 101, so that the gas adding amount is controlled. After the gas in the gas tank 1 is added, the gas tank is taken away from the lower end of the gas inlet needle 4, the gas inlet needle 4 moves downwards to the lower end position under the action of the first spring 8, the lower end face of the flat gasket 5 abuts against the upper end of the gas inlet cap 3, the upper end face of the flat gasket 5 abuts against the upper end of the annular groove 4c, and at the moment, the flat gasket 5 closes the upper end of the exhaust gap 101, closes the gas inlet 4b and opens the lower end of the gas inlet gap 102.
In addition, in order to prevent air leakage at the air inlet structure, a sealing ring 9 sleeved on the air inlet cap 3 is arranged at the opening at the lower end of the first valve hole 2 a.
The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides an some firearm air inlet structure, some firearm air inlet structure installs in the bottom of gas tank, some firearm air inlet structure includes the valve body, its characterized in that, valve body fixed mounting is in the bottom of gas tank, be equipped with the gas needle subassembly in the valve body, the lower extreme threaded connection of valve body has the air inlet cap that is used for restricting the gas needle subassembly in the valve body.
2. The igniter air intake structure according to claim 1, wherein the air needle assembly includes an air intake needle, a first valve hole having an open lower end is formed in the valve body, a second valve hole extending upward is formed in the valve body at an upper end of the first valve hole, and an air intake hole extending upward is formed in the valve body at an upper end of the second valve hole; the air inlet cap is in threaded connection with an opening at the lower end of the first valve hole, the upper end of the air inlet needle is positioned in the second valve hole, and the lower end of the air inlet needle extends out of the air inlet cap; an annular groove is formed in the outer side of the air inlet needle, a flat gasket is connected to the inside of the annular groove in a sliding mode along the axial direction of the air inlet needle, and the flat gasket is located in the first valve hole and located between the air inlet cap and the upper end of the first valve hole; a first spring for forcing the air inlet needle to move downwards is arranged in the second valve hole; the air inlet needle is internally provided with an air inlet blind hole and an air inlet used for communicating the air inlet blind hole with the annular groove; when the air needle assembly is in a natural state, the air inlet needle is positioned at the lower end position under the action of the first spring, and the flat gasket is in sealing contact with the upper end of the air inlet cap and blocks the air inlet; when the air box is inflated, the air inlet needle is pushed to compress the first spring upwards and move to the upper end position, and the flat gasket is in sealing contact with the lower end of the second valve hole and opens the air inlet.
3. The igniter intake structure according to claim 2, wherein an exhaust gap is formed between the lower end of the intake needle and the intake cap, and an intake gap is formed between the upper end of the intake needle and the second valve hole, wherein the flat gasket closes the upper end of the exhaust gap and opens the lower end of the intake gap when the intake needle is in the lower end position, and wherein the flat gasket opens the upper end of the exhaust gap and closes the lower end of the intake gap when the intake needle is in the upper end position, and wherein the intake port communicates with the intake gap.
4. The igniter air inlet structure according to claim 3, wherein the valve body is provided with an annular shoulder for ultrasonic welding with an air box at the outer side near the lower end, and an air inlet pipe communicated with the air inlet hole is sleeved at the upper end of the valve body; an exhaust pipe is sleeved on the outer side of the valve body above the annular convex shoulder; the air inlet pipe is positioned in the exhaust pipe, and the length of the air inlet pipe is greater than that of the exhaust pipe; an exhaust space is formed between the exhaust pipe and the air inlet pipe, and a communicating groove used for communicating the exhaust space and the first valve hole is formed in the valve body.
5. The igniter air inlet structure according to claim 2, wherein a sealing ring sleeved on the air inlet cap is arranged at the lower end opening of the first valve hole.
6. The igniter air intake structure of claim 1, wherein the valve body is made of a plastic material and the air intake cap is made of a copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221552872.5U CN217635744U (en) | 2022-06-21 | 2022-06-21 | Air inlet structure of igniter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221552872.5U CN217635744U (en) | 2022-06-21 | 2022-06-21 | Air inlet structure of igniter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217635744U true CN217635744U (en) | 2022-10-21 |
Family
ID=83628641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221552872.5U Active CN217635744U (en) | 2022-06-21 | 2022-06-21 | Air inlet structure of igniter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217635744U (en) |
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2022
- 2022-06-21 CN CN202221552872.5U patent/CN217635744U/en active Active
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