CN102466064B - Self-sealing coupling for high-pressure air - Google Patents
Self-sealing coupling for high-pressure air Download PDFInfo
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- CN102466064B CN102466064B CN 201010553677 CN201010553677A CN102466064B CN 102466064 B CN102466064 B CN 102466064B CN 201010553677 CN201010553677 CN 201010553677 CN 201010553677 A CN201010553677 A CN 201010553677A CN 102466064 B CN102466064 B CN 102466064B
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- valve
- annular recess
- self
- valve rod
- admission line
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Abstract
The invention relates to a self-sealing coupling for high-pressure air. The self-sealing coupling comprises a valve head, a valve rod and a valve body; the valve body comprises an air inlet pipeline, an air outlet pipeline and a middle passage, the valve head and the valve rod are placed in the valve body and the valve head is positioned in the air outlet pipeline; the valve rod is positioned in the middle passage; a tubular spring is sleeved on the valve rod, one end of the tubular spring is close to the air inlet pipeline, and the other end of the tubular spring is close to a tubular valve on the valve rod; the inner wall of the tubular valve is provided with an annular groove, a screw is arranged in the annular groove and is connected with the valve rod, a screw cap is provided with a first annular groove, and a first seal ring which is formed by adhesive coating is arranged in the first annular groove; and the inclined surface of the valve head is provided with a second annular groove, and a second seal ring which is formed by adhesive coating is arranged in the second annular groove. When the high-pressure air exists in the coupling, the self-sealing coupling can be sealed reliably and is not leaked. The sealing adhesive material does not fall off in the air inflation and deflation processes, and the coupling is reliable and is not leaked in the self-sealing state.
Description
Technical field
The present invention relates to a kind of self-sealing joint of pressurized gas, particularly relate to a kind of fast self-sealing joint of the pressurized gas of inflation/deflation that seals reliably.
Background technique
At present, external hydraulic pressure company is through the development of last 100 years, ripe inflation, venting self-sealing joint technology have been developed, by the produced product of this technology, superior performance is suitable for commercial Application, but for the high space product of reliability requirement, general inflation, vent connection structural volume are larger, and have the characteristics that can not work under high pressure, limited, the leak free condition of physical dimension, are not suitable with the highly reliable demand of space flight.
Domestic fast aeration, vent connection are low-pressure connector, and structural volume is larger.
Fill both at home and abroad, vent connection mostly is thread connecting mode, connection disassembling inconvenience, seal form is the single track sealing, sealing reliability can not satisfy the usage requirement of space flight model.
Summary of the invention
The technical problem to be solved in the present invention provides that a kind of volume is small and exquisite, sealing is reliable, the quick self-sealing joint of the pressurized gas of inflation/deflation.
For solving the problems of the technologies described above, the self-sealing joint of a kind of pressurized gas of the present invention comprises valve head, valve rod and valve body, and valve body comprises admission line, outlet pipe and the center-aisle that communicates with each other, and admission line is that diameter is greater than the cylindrical pipe of intermediate conduit; Valve head is conical, and valve head is connected as a single entity with valve rod at the place, summit, and valve head and valve rod are placed within the valve body, and valve head is positioned at outlet pipe, closely cooperates with valve body; Valve rod is positioned at center-aisle, and leaves the gap between the center-aisle, and extend in the admission line; Valve rod stretches into that cover has a cylindrically coiled spring on the part of admission line, cylindrically coiled spring one end is by the radial surface of admission line, the other end is enclosed within on the valve rod by one, and its internal diameter is greater than stem diameter, the radial surface of the tubulose valve that its external diameter is consistent with the internal diameter of admission line; The tubulose valve is provided with the annular recess that extends vertically away from the inwall of an end of cylindrically coiled spring, be provided with a screw in the annular recess, the nail section of screw is connected with valve rod, the diameter of the cylindrical screw cap of screw is less than the internal diameter of annular recess, the screw cap of screw and the close-fitting surface of annular recess radial surface are provided with the first annular recess, are provided with the first seal ring in the first annular recess; Along being circumferentially with the second annular recess, be provided with the second seal ring in the second annular recess on the inclined-plane of valve head.
The first seal ring and the second seal ring are respectively that the filled rubber moulding forms among the first annular recess and the second annular recess.
The edge is circumferentially with the 3rd annular recess on the outer wall of admission line.
The present invention adopts the double-channel sealing structure form, guarantees when in the joint pressurized gas being arranged, can be reliable without leaking to external sealed.
The present invention can make inflation, deflation course sealing sizing material not come off, and guarantees under the self-styled state of joint reliable without leaking.
The present invention adopts and to be provided with the 3rd annular recess at admission line, can make being stuck in the 3rd annular recess on the inflation venting instrument, can be rapidly reliably butt joint fill, put pressurized gas.
Description of drawings
Fig. 1 is the axial sectional view of a kind of self-sealing joint provided by the present invention.
Among the figure: 1 is valve rod, and 2 is screw, and 3 is valve body, and 4 is Fourth Ring shape groove, and 5 is blocking cap, and 6 is cylindrically coiled spring, and 7 is the tubulose valve, and 8 is the 3rd seal ring, and 9 is pad, and 10 is back-up ring, and 11 is valve head, and 12 is the second seal ring, and 13 is the first seal ring.
Embodiment
The present invention is further detailed explanation below in conjunction with drawings and Examples.
The present invention comprises valve head 11, valve rod 1, valve body 3 and tubulose valve 7.
Valve body 3 comprises admission line, outlet pipe and the center-aisle that communicates with each other, and admission line is that diameter is greater than the cylindrical pipe of intermediate conduit.The edge is circumferentially with Fourth Ring shape groove 4 on the outer wall of admission line.Along being circumferentially with the 3rd annular recess, be provided with the 3rd seal ring 8 in the 3rd annular recess on the outer wall of tubulose valve 7.
Valve head 11 and valve rod 1 integral body are as one, and valve head 1 is conical, and valve head 11 is connected with the place, summit of valve rod 1 at valve head 11.Valve head 11 is placed within the valve body 3 with valve rod 1, and valve head 11 is positioned at valve body 3 outlet pipes, closely cooperates with valve body 3.Valve rod 1 is positioned at center-aisle, and leaves the gap between the center-aisle, and extend in valve body 3 admission lines.
Valve rod 1 stretches into that cover has a cylindrically coiled spring 6 on the part of admission line, cylindrically coiled spring 6 one ends are by the radial surface of admission line, the other end is enclosed within on the valve rod 1 by one, its internal diameter is greater than valve rod 1 diameter, the radial surface of the tubulose valve 7 that its external diameter is consistent with the internal diameter of admission line.
Tubulose valve 7 is provided with the annular recess that extends vertically away from the inwall of an end of cylindrically coiled spring 6, is provided with a screw 2 in the annular recess, and nail section and the valve rod 1 of screw 2 are threaded connection.The diameter of the cylindrical screw cap of screw 2 is less than the internal diameter of annular recess, and the screw cap of screw 2 and the close-fitting surface of annular recess radial surface are provided with the first annular recess, is provided with the first seal ring 13 that the filled rubber moulding forms in the first annular recess; Along being circumferentially with the second annular recess, being provided with the filled rubber moulding in the second annular recess and forming the second seal ring 12 on the inclined-plane of valve head 11.
The outer surface cover of valve body 3 admission lines has a blocking cap.
Outlet pipe has a back-up ring 10 along circumferentially embedding apart from valve head 11 certain position places on the inwall.Be provided with a pad between back-up ring 10 and the valve head 11.
During inflation, inflatable tool makes tubulose valve 7 compression cylindrically coiled springs 6, make tubulose valve 7, screw 2, valve rod 1 and valve head 11 mobile inward together, and the distance that the distance that tubulose valve 7 moves moves greater than screw 2, valve rod 1 and valve head 11 threes, so pressurized gas are by the gap of the screw cap of tubulose valve 7 annular recess inwalls and screw 2, the gap of tubulose valve 7 inwalls and valve rod 1, and the gap of valve rod 1 and center-aisle are input to outlet pipe from admission line.After inflation is finished, take off inflatable tool, tubulose valve 7, screw 2, valve rod 1 and valve head 11 restore under the effect of cylindrically coiled spring 6, again realize the sealing of gas.
Claims (7)
1. the self-sealing joint of pressurized gas comprises valve head, valve rod and valve body, and described valve body comprises admission line, outlet pipe and the center-aisle that communicates with each other, and described admission line is that diameter is greater than the cylindrical pipe of intermediate conduit; Described valve head is conical, and valve head is connected as a single entity with valve rod at the place, summit, and described valve head and valve rod are placed within the valve body, and valve head is positioned at outlet pipe, closely cooperates with valve body; Valve rod is positioned at center-aisle, and leaves the gap between the center-aisle, and extend in the admission line; It is characterized in that: described valve rod stretches into that cover has a cylindrically coiled spring on the part of admission line, described cylindrically coiled spring one end is by the radial surface of described admission line, the other end is enclosed within on the valve rod by one, its internal diameter is greater than described stem diameter, the radial surface of the tubulose valve that its external diameter is consistent with the internal diameter of described admission line; Described tubulose valve is provided with the annular recess that extends vertically away from the inwall of an end of cylindrically coiled spring, be provided with a screw in the described annular recess, the nail section of described screw is connected with described valve rod, the diameter of the cylindrical screw cap of described screw is less than the internal diameter of described annular recess, the screw cap of described screw and the close-fitting surface of described annular recess radial surface are provided with the first annular recess, are provided with the first seal ring in described the first annular recess; Along being circumferentially with the second annular recess, be provided with the second seal ring in described the second annular recess on the inclined-plane of described valve head.
2. the self-sealing joint of a kind of pressurized gas according to claim 1 is characterized in that: described the first seal ring and the second seal ring are respectively that the filled rubber moulding forms among described the first annular recess and the second annular recess.
3. the self-sealing joint of a kind of pressurized gas according to claim 1 is characterized in that: on the outer wall of described admission line along being circumferentially with Fourth Ring shape groove.
4. the self-sealing joint of a kind of pressurized gas according to claim 1 is characterized in that: the outer surface cover of described valve body admission line has a blocking cap.
5. the self-sealing joint of a kind of pressurized gas according to claim 1 is characterized in that: described outlet pipe is apart from valve head certain position place, along being circumferentially with a back-up ring.
6. the self-sealing joint of a kind of pressurized gas according to claim 5 is characterized in that: be provided with a pad between described back-up ring and the valve head.
7. the self-sealing joint of a kind of pressurized gas according to claim 1 is characterized in that: along being circumferentially with the 3rd annular recess, be provided with the 3rd seal ring in described the 3rd annular recess on the outer wall of described tubulose valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010553677 CN102466064B (en) | 2010-11-19 | 2010-11-19 | Self-sealing coupling for high-pressure air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010553677 CN102466064B (en) | 2010-11-19 | 2010-11-19 | Self-sealing coupling for high-pressure air |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102466064A CN102466064A (en) | 2012-05-23 |
| CN102466064B true CN102466064B (en) | 2013-03-20 |
Family
ID=46070030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010553677 Active CN102466064B (en) | 2010-11-19 | 2010-11-19 | Self-sealing coupling for high-pressure air |
Country Status (1)
| Country | Link |
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| CN (1) | CN102466064B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777641A (en) * | 2012-07-27 | 2012-11-14 | 北京精密机电控制设备研究所 | Novel high-pressure air charging nozzle |
| CN104498964A (en) * | 2014-12-08 | 2015-04-08 | 中国航空工业集团公司北京航空制造工程研究所 | Anticorrosive method of inner cavity of sealable metal component with multi-cavity structure |
| CN105502201B (en) * | 2016-01-21 | 2018-09-21 | 重庆永安劳保用品有限公司 | A kind of inflating jack |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2342180Y (en) * | 1997-11-05 | 1999-10-06 | 戴新生 | Inflating valve |
| CN2398487Y (en) * | 1999-12-16 | 2000-09-27 | 刘汉宝 | Inflation automatic valve |
| CN1684846A (en) * | 2002-10-01 | 2005-10-19 | 罗纳德·斯潘塞·桑普森 | Air flow control apparatus |
| CN1877178A (en) * | 2006-06-27 | 2006-12-13 | 梁伟 | Automatic decompression explosion-proof safety nozzle of automobile tire |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2916747B2 (en) * | 1994-08-18 | 1999-07-05 | 旭産業株式会社 | Air vent valve |
| JP2001287521A (en) * | 2000-04-07 | 2001-10-16 | Pacific Ind Co Ltd | Rim valve |
-
2010
- 2010-11-19 CN CN 201010553677 patent/CN102466064B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2342180Y (en) * | 1997-11-05 | 1999-10-06 | 戴新生 | Inflating valve |
| CN2398487Y (en) * | 1999-12-16 | 2000-09-27 | 刘汉宝 | Inflation automatic valve |
| CN1684846A (en) * | 2002-10-01 | 2005-10-19 | 罗纳德·斯潘塞·桑普森 | Air flow control apparatus |
| CN1877178A (en) * | 2006-06-27 | 2006-12-13 | 梁伟 | Automatic decompression explosion-proof safety nozzle of automobile tire |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2001-287521A 2001.10.16 |
| JP特开平8-61534A 1996.03.08 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102466064A (en) | 2012-05-23 |
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