CN102466064A - Self-sealing coupling for high-pressure air - Google Patents
Self-sealing coupling for high-pressure air Download PDFInfo
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- CN102466064A CN102466064A CN201010553677XA CN201010553677A CN102466064A CN 102466064 A CN102466064 A CN 102466064A CN 201010553677X A CN201010553677X A CN 201010553677XA CN 201010553677 A CN201010553677 A CN 201010553677A CN 102466064 A CN102466064 A CN 102466064A
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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 self-sealing joint that reliably can charge and discharge the pressurized gas of gas fast that seals.
Background technique
At present, external hydraulic pressure company has developed ripe inflation, venting self-sealing joint technology through the development of last 100 years; 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 bigger, and have the characteristics that can not under high pressure, limited, the leak free condition of physical dimension, work, the demand that incompatibility space flight is highly reliable.
Domestic fast aeration, vent connection are low-pressure connector, and structural volume is bigger.
Fill both at home and abroad, mostly vent connection be thread connecting mode, connects dismounting 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 that the present invention will solve provides a kind of advantages of small volume, seals self-sealing joint reliable, that can charge and discharge the pressurized gas of gas fast.
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 the cylindrical pipe of diameter greater than 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 on the part of admission line and is with a cylindrically coiled spring; 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 portion 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, and the screw cap of screw and the close-fitting surface of annular recess radial surface are provided with first annular recess, are provided with first seal ring in first annular recess; The upper edge, inclined-plane of valve head is circumferentially with second annular recess, is provided with second seal ring in second annular recess.
First seal ring and second seal ring are respectively that the filled rubber moulding forms among first annular recess and second annular recess.
The outer wall upper edge of admission line is circumferentially with the 3rd annular recess.
The present invention adopts double sealing structural type, and guaranteeing can reliably not have leakage to external sealed when in the joint pressurized gas being arranged.
The present invention can make inflation, deflation course sealing sizing material not come off, and guarantees that reliable nothing is leaked under the self-styled state of joint.
The present invention is employed in admission line and is provided with the 3rd annular recess, 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 second seal ring, and 13 is first seal ring.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation.
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 the cylindrical pipe of diameter greater than intermediate conduit.The outer wall upper edge of admission line is circumferentially with Fourth Ring shape groove 4.The outer wall upper edge of tubulose valve 7 is circumferentially with the 3rd annular recess, is provided with the 3rd seal ring 8 in the 3rd annular recess.
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 on the part of admission line and is with a cylindrically coiled spring 6; 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 the nail portion of screw 2 and valve rod 1 are through being threaded.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 first annular recess, is provided with first seal ring 13 that the filled rubber moulding forms in first annular recess; The upper edge, inclined-plane of valve head 11 is circumferentially with second annular recess, is provided with the filled rubber moulding in second annular recess and forms second seal ring 12.
Valve body 3 admission lines outside is with a blocking cap.
Outlet pipe is apart from valve head 11 certain position places, and the inwall upper edge circumferentially embeds has a back-up ring 10.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, and tubulose valve 7, screw 2, valve rod 1 and valve head 11 are moved together inward, and the distance that moves greater than screw 2, valve rod 1 and valve head 11 threes of the distance that moves of tubulose valve 7; So pressurized gas are through 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 accomplished, 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, realize the sealing of gas again.
Claims (7)
1. the self-sealing joint of pressurized gas comprises valve head, valve rod and valve body, and said valve body comprises admission line, outlet pipe and the center-aisle that communicates with each other, and said admission line is the cylindrical pipe of diameter greater than intermediate conduit; Said valve head is conical, and valve head is connected as a single entity with valve rod at the place, summit, and said 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: said valve rod stretches on the part of admission line and is with a cylindrically coiled spring; Said cylindrically coiled spring one end is by the radial surface of said admission line; The other end is enclosed within on the valve rod by one; Its internal diameter is greater than said stem diameter, the radial surface of the tubulose valve that its external diameter is consistent with the internal diameter of said admission line; Said 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 said annular recess; The nail portion of said screw is connected with said valve rod; The diameter of the cylindrical screw cap of said screw is less than the internal diameter of said annular recess, and the screw cap of said screw and the close-fitting surface of said annular recess radial surface are provided with first annular recess, are provided with first seal ring in said first annular recess; The upper edge, inclined-plane of said valve head is circumferentially with second annular recess, is provided with second seal ring in said second annular recess.
2. the self-sealing joint of a kind of pressurized gas according to claim 1 is characterized in that: said first seal ring and second seal ring are respectively that the filled rubber moulding forms among said first annular recess and second annular recess.
3. the self-sealing joint of a kind of pressurized gas according to claim 1, it is characterized in that: the outer wall upper edge of said admission line is 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: be with a blocking cap outside the said valve body admission line.
5. the self-sealing joint of a kind of pressurized gas according to claim 1 is characterized in that: said 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 said back-up ring and the valve head.
7. the self-sealing joint of a kind of pressurized gas according to claim 1, it is characterized in that: the outer wall upper edge of said tubulose valve is circumferentially with the 3rd annular recess, is provided with the 3rd seal ring in said the 3rd annular recess.
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 true CN102466064A (en) | 2012-05-23 |
| CN102466064B 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 |
|---|---|
| CN (1) | CN102466064B (en) |
Cited By (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 |
| CN105502201A (en) * | 2016-01-21 | 2016-04-20 | 重庆永安劳保用品有限公司 | Inflatable jack |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0861534A (en) * | 1994-08-18 | 1996-03-08 | Asahi Sangyo Kk | Air bleeder valve |
| 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 |
| JP2001287521A (en) * | 2000-04-07 | 2001-10-16 | Pacific Ind Co Ltd | Rim 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 |
-
2010
- 2010-11-19 CN CN 201010553677 patent/CN102466064B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0861534A (en) * | 1994-08-18 | 1996-03-08 | Asahi Sangyo Kk | Air bleeder valve |
| 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 |
| JP2001287521A (en) * | 2000-04-07 | 2001-10-16 | Pacific Ind Co Ltd | Rim 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 |
Cited By (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 |
| CN105502201A (en) * | 2016-01-21 | 2016-04-20 | 重庆永安劳保用品有限公司 | Inflatable jack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102466064B (en) | 2013-03-20 |
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