CN210600523U - Aerify switching device - Google Patents
Aerify switching device Download PDFInfo
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- CN210600523U CN210600523U CN201920735844.9U CN201920735844U CN210600523U CN 210600523 U CN210600523 U CN 210600523U CN 201920735844 U CN201920735844 U CN 201920735844U CN 210600523 U CN210600523 U CN 210600523U
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- valve
- piston
- inflation
- shell
- pressure release
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Abstract
The utility model discloses an aerify switching device, including casing (1), main gas passage and relief valve, casing (1) is opened along the axis direction has main gas passage, and main gas passage one end is the charging connector connection port of connecting aircraft accumulator charging connector, and the other end is the inflation port of connecting gas piping, its characterized in that: a pressure release valve capable of discharging gas in the shell (1) is arranged on the shell body of the shell (1), and a piston (12) in the pressure release valve rapidly blocks a pipeline under the action of spring acting force and pressure in the pipeline, so that gas leakage in the inflation process can be prevented; after the inflation work is completed, the residual pressure in the pipe can be quickly removed through the pressure release valve, after the external force is removed, the inflation device can be detached, the working efficiency is improved, the valve hole is formed in the inflation nozzle connecting port of the shell (1), and the pressurization stop valve for clamping the inflation nozzle of the aircraft accumulator is arranged in the valve hole and used for fixing and locking the whole device in a pressurization state.
Description
Technical Field
The utility model relates to an aerify switching device, especially, relate to an aerify switching device that prevents to press area to dismantle.
Background
Currently, during the use of an aircraft, it is necessary to carry out inflation and tightness checks on tires, hydraulic accumulators, buffer struts, etc. in the aircraft, the inflation of pressurized gas of the aircraft being an important and frequently operated task in the maintenance work of the aircraft crew. The traditional inflation work is mainly completed by butt joint of a ground air source device (such as a nitrogen vehicle, a nitrogen bottle and the like) and each accumulator inflating nozzle of the airplane through an inflating pipeline, wherein the inflating pipe joint is in screwed connection with the accumulator inflating nozzle of the airplane through threads. After the inflation is finished, because the inflation pipeline and the inflation connector are not provided with the pressure relief devices, the inflation device is disassembled after the pressure relief is carried out through the ground air source device, and the working efficiency is very low. If the staff dismantles aerating device under the condition that pressure release or intraductal excess pressure were not got rid of, can cause the gas charging line to fly and get rid of, lead to aircraft surface or aircraft spare part damaged, can cause the casualties even in the serious time, have very big potential safety hazard.
SUMMERY OF THE UTILITY MODEL
For solving among the prior art inflation line and the gas tube connector do not have pressure relief device and lead to work efficiency low and dismantle loss and the potential safety hazard that aerating device caused under the condition that pressure does not let out, the utility model provides an aerify switching device. The utility model discloses an aerify switching device, its characterized in that: the aircraft accumulator inflation device comprises a shell, a main air passage and a pressure release valve, wherein the shell is provided with the main air passage along the axis direction, one end of the main air passage is an inflation nozzle connecting port connected with an inflation nozzle of an aircraft accumulator, the other end of the main air passage is an inflation port connected with an inflation pipeline, and the shell body of the shell is provided with the pressure release valve capable of discharging gas in the shell.
Further, the relief valve include pressure release valve cap and pressure release disk seat, pressure release valve cap axial be equipped with the valve rod, the cover has resilient means on the valve rod, resilient means card between pressure release valve cap and pressure release disk seat, valve rod end cover have a piston, pressure release disk seat axial be equipped with the variable cross section hole, valve rod and piston stretch into in the pressure release disk seat variable cross section hole, piston and the cooperation of pressure release disk seat variable cross section hole block the gas outflow, pressure release disk seat variable cross section hole and casing air flue communicate with each other.
Further, the inner hole of the variable cross section of the pressure relief valve seat is a stepped hole, the outer side of the stepped hole is a narrow side, and the piston is wider than the narrow stepped hole, so that air can be better blocked to flow out.
Further, the variable cross-section inner hole of the pressure relief valve seat is a trapezoidal hole, the outer side of the trapezoidal hole is a narrower side, and the piston is a variable cross-section piston and matched with the variable cross-section inner hole.
Further, the elastic device is a spring.
Furthermore, the pressure relief valve seat is integrally formed with the shell or connected with the shell through welding.
Furthermore, the pressure relief valve seat is detachably connected with the shell.
Furthermore, the pressure relief valve seat is assembled and connected with the shell through threads and a sealing gasket.
Further, the pressure relief valve seat and the shell are fixedly locked through a fastening screw B.
Furthermore, a valve hole is formed in the connecting port of the inflating nozzle of the shell along the radial direction, and a pressurizing stop valve for clamping the inflating nozzle of the aircraft accumulator is arranged in the valve hole.
Furthermore, the pressure boost stop valve comprises a stop piston, a sealing rubber ring B, a spring, a pressure boost cavity and an air guide pipeline, the air guide pipeline and the pressure boost cavity are arranged in the wall of the shell, the air guide pipeline is communicated with the air passage, the pressure boost cavity is internally provided with the stop piston, the stop piston comprises a piston rod and a piston cap, the piston rod is sleeved with the spring, the sealing rubber ring B is arranged outside the spring, the end of the piston rod extends into the valve hole, the diameter of the piston cap is the same as the diameter of the section of the pressure boost cavity, and two ends of the wall of the pressure boost cavity are provided with limit bosses for limiting the movement of the stop piston.
Furthermore, the pressure boosting stop valves are uniformly distributed on the charging connector connecting port of the shell for one circle.
Furthermore, the pressurizing cavity of the pressurizing stop valve is composed of an end cover of a detachable charging connector connecting port and the charging connector connecting port, and is fixed by a fastening screw A during assembly.
Furthermore, a sealing ring is arranged between the end cover and the connecting port of the charging connector.
Further, the fastening screw A carries out anti-loosening treatment.
The utility model discloses an have following positive effect, the utility model discloses an aerify switching device.
In the inflation process, a piston in the pressure relief valve rapidly blocks a pipeline under the action of a spring and the pressure in the pipeline, so that air leakage in the inflation process can be prevented; after the inflation work is finished, the residual pressure in the pipe can be quickly removed through the pressure release valve, and after the external force is removed, the inflation device can be detached, so that the working efficiency is improved.
The pressurization stop valve is arranged in the inflation switching device and used for fixing and locking the whole device in a pressurization state, so that the inflation device can not be detached in the pressurization state in the inflation process after being butted with an inflation nozzle of an aircraft accumulator, and the potential safety hazard when the inflation connector is detached in a pressurized manner in a mechanical work is effectively prevented. The clamping device has the advantages of being flexible in clamping, good in stability, high in safety and strong in universality.
Drawings
Fig. 1 is a schematic view of the air inflation switching device of the present invention.
Fig. 2 is a sectional view of the air charging adapter a-a of the present invention.
Fig. 3 is a sectional view of the air charging adapter of the present invention.
In the figure: 1. the air guide pipe comprises a shell, 2 parts of fastening screws A, 3 parts of sealing rubber rings A, 4 parts of stop pistons, 5 parts of sealing rubber rings B, 6 parts of springs, 7 parts of pressurizing cavities, 8 parts of sealing rings, 9 parts of air guide pipes, 10 parts of pressure relief valve caps, 11 parts of elastic devices, 12 parts of pistons, 13 parts of pressure relief valve seats, 14 parts of fastening screws B, 15 parts of sealing gaskets and 16 parts of main air passages.
Detailed Description
As shown in fig. 1, the utility model discloses an aerify switching device, its characterized in that: the aircraft pressure accumulator air charging device comprises a shell 1, a main air passage 16 and a pressure release valve, wherein the shell 1 is provided with the main air passage 16 along the axis direction, one end of the main air passage 16 is an air charging connector connecting port connected with an air charging connector of an aircraft pressure accumulator, the other end of the main air passage is an air charging port connected with an air charging pipeline, and the shell body of the shell 1 is provided with the pressure release valve capable of discharging gas in the shell 1.
Further, as shown in fig. 2, the relief valve include pressure release valve cap 10 and pressure release disk seat 13, 10 axial of pressure release valve cap be equipped with the valve rod, the cover has resilient means 11 on the valve rod, resilient means 11 card between pressure release valve cap 10 and pressure release disk seat 13, valve rod end cover have piston 12, pressure release disk seat 13 axial be equipped with the variable cross section hole, valve rod and piston 12 stretch into in the 13 variable cross section holes of pressure release disk seat, piston 12 cooperate with 13 variable cross section holes of pressure release disk seat and block the gaseous outflow, 13 variable cross section holes of pressure release disk seat communicate with each other with 1 main gas passage 16 of casing.
Further, the inner hole of the variable cross section of the pressure relief valve seat 13 is a stepped hole, the outer side of the stepped hole is a narrow side, and the piston 12 is wider than the narrow stepped hole, so that air can be better blocked to flow out.
Further, the variable cross-section inner hole of the pressure relief valve seat 13 can also be a trapezoidal hole, the outer side of the trapezoidal hole is the narrower side, and the piston 12 is a variable cross-section piston and matched with the variable cross-section inner hole.
Further, the elastic device 11 is a spring.
Further, the pressure relief valve seat 13 is integrally formed with the housing 1 or connected thereto by welding.
Further, the pressure relief valve seat 13 is detachably connected with the housing 1.
Further, the pressure relief valve seat 13 is assembled and connected with the shell 1 through threads and a sealing gasket 15.
Further, the pressure relief valve seat 13 and the housing 1 are fixedly locked by a fastening screw B14.
Furthermore, a valve hole is formed in the connection port of the charging nozzle of the shell 1 along the radial direction, and a pressurization stop valve for clamping the charging nozzle of the aircraft accumulator is arranged in the valve hole.
Further, the pressure boosting stop valve comprises a stop piston 4, a sealing rubber ring B5, a spring 6, a pressure boosting cavity 7 and an air guide pipeline 9, the air guide pipeline 9 and the pressure boosting cavity 7 are arranged in the wall of the shell 1, the air guide pipeline 9 is communicated with the main air channel, the stop piston 4 is arranged in the pressure boosting cavity 7, the stop piston 4 comprises a piston rod and a piston cap, the piston rod is sleeved with the spring 6, the sealing rubber ring B5 is arranged outside the spring 6, the end of the piston rod extends into the valve hole, the diameter of the piston cap is the same as that of the section of the pressure boosting cavity, and limiting bosses for limiting the movement of the stop piston 4 are arranged at two ends of the wall of the pressure boosting cavity 7.
Further, as shown in fig. 3, the pressure stop valves are uniformly distributed around the charging nozzle connection port of the housing 1.
As shown in fig. 2, further, the pressurizing cavity 7 of the pressurizing stop valve is composed of an end cover of the detachable inflation nozzle connecting port and the inflation nozzle connecting port, and is fixed by a fastening screw A2 during assembly.
Further, a sealing ring 8 is arranged between the end cover and the connecting port of the charging connector.
Further, the fastening screw A2 is subjected to anti-loosening treatment.
This aerify switching device and aircraft accumulator charging connector pass through the screw butt joint of screwing, and when filling the pressurized gas toward the aircraft, the pressurized gas gets into booster chamber 7 through air guide pipeline 9, promotes stop piston 4, overcomes 6 elasticity of spring and stretches out casing 1, dies whole device and accumulator charging connector chucking lock, guarantees unable dismantlement under the charging process pressure boost state, effectively prevents the quick-witted affair and takes pressure the potential safety hazard when dismantling charging connector.
After the inflation work is finished, the pressure relief valve cap 10 of the pressure relief valve is manually pressed, gas flows out through the inner hole with the variable cross section, the residual pressure in the pipe can be quickly removed, and the piston 12 in the pressure relief valve rapidly blocks the pipeline under the action of the acting force of the elastic device 11 and the pressure in the pipe in the absence of external force or in the inflation process, so that the gas leakage in the inflation process is prevented.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides an aerify switching device, includes casing (1), main gas passage (16) and relief valve, casing (1) open along the axis direction and have main gas passage (16), main gas passage (16) one end be the charging connector connection port of connecting aircraft accumulator charging connector, the other end is the charging connector who connects the gas line, its characterized in that: the shell body of the shell (1) is provided with a pressure relief valve which can discharge gas in the shell (1).
2. The inflation adapter of claim 1, wherein: the relief valve include pressure release valve cap (10) and pressure release disk seat (13), pressure release valve cap (10) axial be equipped with the valve rod, the cover has resilient means (11) on the valve rod, resilient means (11) card between pressure release valve cap (10) and pressure release disk seat (13), valve rod end cover have piston (12), pressure release disk seat (13) axial be equipped with the variable cross section hole, valve rod and piston (12) stretch into pressure release disk seat (13) variable cross section hole in, piston (12)12 and pressure release disk seat (13)13 variable cross section hole cooperate and block the gas outflow, pressure release disk seat (13) variable cross section hole and casing (1) main air duct (16) communicate with each other.
3. The inflation adapter of claim 2, wherein: pressure release valve seat (13) variable cross section hole be trapezoidal hole, the trapezoidal hole outside be narrower one side, piston (12) be variable cross section piston (12), with the variable cross section hole cooperate, resilient means 11 be the spring.
4. An inflatable adapter according to claim 2 or 3, wherein: the pressure relief valve seat (13) is detachably connected with the shell (1).
5. The inflation adapter of claim 4, wherein: the pressure relief valve seat (13) is in assembly connection with the shell (1) through threads and a sealing washer (15), and the pressure relief valve seat (13) and the shell (1) are fixedly locked through a fastening screw B (14).
6. An inflation adapter according to claim 1, 2, 3, or 5, wherein: a valve hole is formed in the inflation nozzle connecting port of the shell (1) along the radial direction, and a pressurization stop valve for clamping the inflation nozzle of the aircraft accumulator is arranged in the valve hole.
7. The inflation adapter of claim 6, wherein: the booster stop valve comprises a stop piston (4), a sealing rubber ring B (5), a spring (6), a booster cavity (7) and an air guide pipeline (9), the air guide pipeline (9) and the booster cavity (7) are arranged in the wall of the shell (1), the air guide pipeline (9) is communicated with the main air channel, the stop piston (4) is arranged in the booster cavity (7), the stop piston (4) comprises a piston rod and a piston cap, the piston rod is sleeved with the spring (6), the sealing rubber ring B (5) is arranged outside the spring (6), the end of the piston rod extends into the valve hole, the diameter of the piston cap is the same as that of the section of the booster cavity (7), and limiting bosses for limiting the movement of the stop piston (4) are arranged at two ends of the wall of the booster cavity (7).
8. The inflation adapter of claim 7, wherein: the pressurizing stop valves are uniformly distributed on the charging connector connecting port of the shell (1) for one circle.
9. The inflation adapter of claim 8, wherein: the pressurizing cavity (7) of the pressurizing stop valve is composed of an end cover of a detachable inflation nozzle connecting port and the inflation nozzle connecting port, and is fixed by a fastening screw A (2) during assembly, and the fastening screw A (2) performs anti-loosening treatment.
10. The inflation adapter of claim 9, wherein: and a sealing ring (8) is arranged between the end cover and the connecting port of the charging connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920735844.9U CN210600523U (en) | 2019-05-22 | 2019-05-22 | Aerify switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920735844.9U CN210600523U (en) | 2019-05-22 | 2019-05-22 | Aerify switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210600523U true CN210600523U (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920735844.9U Active CN210600523U (en) | 2019-05-22 | 2019-05-22 | Aerify switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210600523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131495A (en) * | 2019-05-22 | 2019-08-16 | 成都飞机工业（集团）有限责任公司 | A kind of inflation switching device |
-
2019
- 2019-05-22 CN CN201920735844.9U patent/CN210600523U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131495A (en) * | 2019-05-22 | 2019-08-16 | 成都飞机工业（集团）有限责任公司 | A kind of inflation switching device |
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