CN2723788Y - Pneuamtic balance automatic control valve - Google Patents
Pneuamtic balance automatic control valve Download PDFInfo
- Publication number
- CN2723788Y CN2723788Y CN 200420032245 CN200420032245U CN2723788Y CN 2723788 Y CN2723788 Y CN 2723788Y CN 200420032245 CN200420032245 CN 200420032245 CN 200420032245 U CN200420032245 U CN 200420032245U CN 2723788 Y CN2723788 Y CN 2723788Y
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder sleeve
- exhaust port
- bleed hole
- air bag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Control Of Fluid Pressure (AREA)
Abstract
The utility model relates to an air pressure balance automatic control valve which comprises a cylinder sleeve, both ends of which are opened. The top end of the cylinder sleeve is provided with an annular clamping edge. The position in the cylinder sleeve, which corresponds to the annular clamping edge, is provided with a sealing rubber ring. A piston is arranged in the cylinder sleeve, and the bottom end of the cylinder sleeve is provided with an opened end cover. A piston guiding track is arranged in the cylinder sleeve. The position on the piston, which corresponds to the piston guiding track, is provided with a guiding slot. The side on the end cover, which is adjacent to the piston, is provided with an annular position limiting boss. A spring is arranged between the piston and the end cover. The middle part of the cylinder sleeve is provided with a bleed hole of the cylinder sleeve. A piston bleed hole is arranged in the piston. An inlet of the piston bleed hole is bunted on the sealing rubber ring, and an outlet of the piston bleed hole is staggered with the bleed hole of the cylinder sleeve along the direction of piston motion. In addition, the distance between the outlet of the piston bleed hole and the bleed hole of the cylinder sleeve is equal to a piston stroke. The utility model has the advantages of simple structure, easy installation and reliable operation.
Description
Technical field
The utility model relates to a kind of air pressure balance autocontrol valve of air bag special use.
Background technique
If existing air bag is when using under water, in floating-upward process, owing to hydraulic pressure reduces gradually, can cause the interior air pressure of air bag greater than the outer hydraulic pressure of air bag, when the difference of hydraulic pressure outside air bag internal air pressure and the air bag during to certain value, will cause the air bag explosion, air bag will be ineffective.
Summary of the invention
The purpose of this utility model is to solve the problems referred to above that prior art exists, supporting and simple in structure, easy for installation, the reliable operation of air bag a kind of and that use under water is provided, hydraulic pressure is in a basic balance outward with air bag can to make air bag regulate the air bag internal air pressure under water in the floating-upward process automatically, make the outer hydraulic pressure difference of air bag internal air pressure and air bag all the time within the specific limits, to prevent the air pressure balance autocontrol valve of air bag because of the excessive explosion of inside and outside differential pressure.
The utility model is achieved in that it comprises the cylinder sleeve of an open at both ends, its special way is to be provided with the annular snap edge on the cylinder sleeve top, corresponding annular snap is provided with O-ring seal along the place in cylinder sleeve, in cylinder sleeve, be provided with piston, be provided with uncovered end cap in the cylinder sleeve bottom, in cylinder sleeve, be provided with the piston guide rail, corresponding piston guide rail place is provided with guide groove on the said piston, on end cap, be provided with the annular stop boss near piston side, between piston and end cap, be provided with spring, be provided with the cylinder sleeve exhaust port at the cylinder sleeve middle part, in piston, be provided with the piston exhaust port, said piston exhaust port inlet withstands on the O-ring seal, and the outlet of piston exhaust port is staggered along the piston motion direction with the cylinder sleeve exhaust port, and between the outlet of piston exhaust port and the cylinder sleeve exhaust port apart from equating with piston stroke.
The utility model has the advantages that: simple in structure, easy for installation, reliable operation, hydraulic pressure is in a basic balance outward with air bag can to make the air bag that joins with this air pressure balance autocontrol valve regulate air bag air pressure automatically in the floating-upward process under water, the pressure reduction of the outer hydraulic pressure of air bag internal air pressure and air bag is kept within the specific limits, with prevent air bag in floating-upward process because of the excessive explosion of inside and outside differential pressure.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1.
Among the figure: 1-cylinder sleeve, 1A-annular snap edge, 2-end cap, 2A-positive stop lug boss, 3-piston guide rail, 4-piston, 4A-guide groove, 5-O-ring seal, 6-spring, 7-piston exhaust port, 8-cylinder sleeve exhaust port.
Embodiment
As shown in the figure, the utility model has the cylinder sleeve 1 of an open at both ends, be provided with annular snap along 1A on cylinder sleeve 1 top, corresponding annular snap is provided with O-ring seal 5 along the 1A place in cylinder sleeve 1, in cylinder sleeve 1, be provided with piston 4, be provided with uncovered end cap 2, in cylinder sleeve 1, be provided with the upper and lower piston guide rail 3 that plays the role of positioning in cylinder sleeve 1 bottom, corresponding piston guide rail 3 places are provided with guide groove 4A on the said piston 4, so that piston 4 moves in piston guide rail 3.Be provided with annular stop boss 2A near piston 4 sides on end cap 2, be provided with spring 6 between piston 4 and end cap 2, said spring 6 tension force are 15KPa.Be provided with cylinder sleeve exhaust port 8 at cylinder sleeve 1 middle part, in piston 4, be provided with piston exhaust port 7, said piston exhaust port 7 inlets withstand on the O- ring seal 5,7 outlets of piston exhaust port are staggered along piston 4 moving direction with cylinder sleeve exhaust port 8, and piston exhaust port 7 outlet equates with piston 4 strokes with distance between the cylinder sleeve exhaust port 8, when piston 4 moved to the lower end, 7 outlets of piston exhaust port communicated with cylinder sleeve exhaust port 8.
During use, this air pressure balance autocontrol valve is connected with air bag, makes uncovered the communicating on air bag and cylinder sleeve 1 top.Under water, when airbag aeration, the air bag internal air pressure adds the tension force of upper spring 6 less than the pressure of extraneous seawater, hydraulic pressure adds the tension force of spring 6 and pushes piston 4 to cylinder sleeve 1 top, piston exhaust port 7 inlets withstand on the O- ring seal 5,7 outlets of piston exhaust port are staggered with cylinder sleeve exhaust port 8, and the air in the air bag is to effluxing.When airbag aeration and when being deployed into to a certain degree, the air bag come-up, come-up along with air bag, the pressure of air bag position seawater reduces gradually, when the air bag internal air pressure adds the tension force of spring 6 greater than the pressure of extraneous seawater, air pressure in the air bag is pushed piston 4 to the other end, until piston 4 to positive stop lug boss 2A place, this moment, piston exhaust port 7 inlets communicated with the air bag interface, 7 outlets of piston exhaust port communicate with cylinder sleeve exhaust port 8, and the air in the air bag is arranged in water by piston exhaust port 7 and cylinder sleeve exhaust port 8.When the air bag internal air pressure adds the tension force of spring 6 less than the pressure of extraneous seawater, seawater pressure adds the tension force of spring 6 and pushes piston 4 to the cylinder sleeve top, this moment, piston exhaust port 7 inlets withstood on again on the O- ring seal 5, and 7 outlets of piston exhaust port are staggered with cylinder sleeve exhaust port 8, and air bag stops outside exhaust.So repeatedly, keep the air bag internal air pressure automatically,, thereby guarantee that air bag under water can explosion in the uphill process because the material of air bag is withstand voltage greater than 30KPa all the time than about the high 15KPa of seawater pressure.
Claims (1)
1, a kind of air pressure balance autocontrol valve, the cylinder sleeve that comprises open at both ends, it is characterized in that, be provided with the annular snap edge on the cylinder sleeve top, corresponding annular snap is provided with O-ring seal along the place in cylinder sleeve, in cylinder sleeve, be provided with piston, be provided with uncovered end cap in the cylinder sleeve bottom, in cylinder sleeve, be provided with the piston guide rail, corresponding piston guide rail place is provided with guide groove on the said piston, on end cap, be provided with the annular stop boss, between piston and end cap, be provided with spring, be provided with the cylinder sleeve exhaust port at the cylinder sleeve middle part near piston side, in piston, be provided with the piston exhaust port, said piston exhaust port inlet withstands on the O-ring seal, and the outlet of piston exhaust port is staggered along the piston motion direction with the cylinder sleeve exhaust port, and between the outlet of piston exhaust port and the cylinder sleeve exhaust port apart from equating with piston stroke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420032245 CN2723788Y (en) | 2004-06-24 | 2004-06-24 | Pneuamtic balance automatic control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420032245 CN2723788Y (en) | 2004-06-24 | 2004-06-24 | Pneuamtic balance automatic control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2723788Y true CN2723788Y (en) | 2005-09-07 |
Family
ID=35037414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420032245 Expired - Fee Related CN2723788Y (en) | 2004-06-24 | 2004-06-24 | Pneuamtic balance automatic control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2723788Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101684729B (en) * | 2007-01-19 | 2012-12-05 | 华北科技学院 | Coal-seam gas pressure test system |
| CN104358903A (en) * | 2014-10-23 | 2015-02-18 | 南通市海鸥救生防护用品有限公司 | Automatic drain valve of lifeboat |
| CN104941697A (en) * | 2015-06-01 | 2015-09-30 | 株洲南车时代电气股份有限公司 | Air pressure balancing device |
| CN110091963A (en) * | 2019-05-08 | 2019-08-06 | 重庆懿熙品牌策划有限公司 | A kind of concora crush component and its displaying ship and charging port with automatic charging function |
-
2004
- 2004-06-24 CN CN 200420032245 patent/CN2723788Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101684729B (en) * | 2007-01-19 | 2012-12-05 | 华北科技学院 | Coal-seam gas pressure test system |
| CN104358903A (en) * | 2014-10-23 | 2015-02-18 | 南通市海鸥救生防护用品有限公司 | Automatic drain valve of lifeboat |
| CN104941697A (en) * | 2015-06-01 | 2015-09-30 | 株洲南车时代电气股份有限公司 | Air pressure balancing device |
| CN110091963A (en) * | 2019-05-08 | 2019-08-06 | 重庆懿熙品牌策划有限公司 | A kind of concora crush component and its displaying ship and charging port with automatic charging function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |