CN102401160A - Conical-core pressure-difference check valve - Google Patents
Conical-core pressure-difference check valve Download PDFInfo
- Publication number
- CN102401160A CN102401160A CN2011102259515A CN201110225951A CN102401160A CN 102401160 A CN102401160 A CN 102401160A CN 2011102259515 A CN2011102259515 A CN 2011102259515A CN 201110225951 A CN201110225951 A CN 201110225951A CN 102401160 A CN102401160 A CN 102401160A
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- valve
- spool
- pressure
- tapered
- pressure difference
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Abstract
The invention discloses a conical-core pressure-difference one-way valve and relates to an automatic control check valve. The automatic control one-way valve disclosed by the invention is a pressure-difference check valve with simple manufacture, high sealing performance and implementation for automatically controlling the one-way flowing of fluids by utilizing the pressure difference of the fluid at the two ends. The figure in the abstract is used as a reference drawing. A conical valve core 2 is a concentric platform body, the small round end of the valve core 2 faces the flowing direction of the fluid, and a rubber sealing ring 3 is embedded on the side surface of the valve core; the inclination of the side surface of the valve core 2 is coincided to that of the inner cavity wall of a valve body 1; the plane of the large round end of the valve core 2 is connected with a pressure reset spring 4 which is fixed at the center of a spring support 5; and the spring support 5 is provided with a hole through which the fluid can pass. The position of the valve core 2 in the valve body depends on the pressure difference at the two ends of the valve core; and when the pressure of the outer side of the valve is less than or equal to that of the inner side of the valve, the conical valve core 2 can move leftwards, so that the rubber sealing ring 3 is extruded on the inner cavity wall of the valve body 1, the channel is blocked and the valve is closed automatically. When the pressure of the outer side of the valve is larger than that of the inner side of the valve, the conical valve core 2 can move rightwards, the gap between the valve core and the inner cavity wall of the valve body is enlarged, the channel is communicated, and the valve is opened automatically, so that the purpose of automatically controlling the one-way flowing of the fluid is achieved.
Description
[technical field]
The present invention relates to a kind of valve, especially automatically the controlling non-return valve door.
[background technique]
Existing valve has polytype, and its function all is blocking-up or allows fluid (gas, liquid) to flow.
[summary of the invention]
The purpose of this invention is to provide a kind of make simple, sealability is high, the pressure difference of utilizing valve two ends fluid realizes the pressure difference one-way valve of control one-directional fluid flow automatically.
For realizing above-mentioned purpose, tapered core pressure difference one-way valve of the present invention is made up of valve body 1, tapered spool 2, rubber seal 3, pressure Returnning spring 4 and spring support 5.The characteristic of this valve is: tapered spool 2 is concentric circle stage bodies; The inflow direction of spool 2 roundlet end face convection cells, the spool side is embedded with rubber seal 3, and spool 2 side gradients and valve body 1 internal chamber wall gradient match; Spool 2 great circle Transverse planes connect pressure Returnning spring 4; Pressure Returnning spring 4 is fixed on spring support 5 centers, and is porose on the spring support 5, and fluid can flow through from the hole.The pressure difference at spool two ends is depended in the position of spool 2 in valve body, and when the valve outside pressure was less than or equal to the valve inside pressure, tapered spool 2 can be moved to the left, thereby rubber seal 3 is squeezed on valve body 1 internal chamber wall, carrier frequency channel break, and valve is closed automatically.When valve outside pressure during greater than the valve inside pressure, tapered spool 2 can move right, and spool and body cavity wall gap are strengthened, and passage is connected, and valve is opened automatically, has realized the purpose of automatic control one-directional fluid flow.
[description of drawings]
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation.Wherein:
Fig. 1 is the longitudinal profile schematic representation of the tapered core pressure difference of the present invention one-way valve.
Fig. 2 is the floor map of the spring support 5 of the tapered core pressure difference of the present invention one-way valve.
Wherein reference character is represented respectively: 1-valve body, the tapered spool of 2-, 3-rubber seal, 4-Returnning spring, 5-spring support, P1-spool outside hydrodynamic pressure, the inboard hydrodynamic pressure of P2-spool, P3-return spring pressure.
[embodiment]
Longitudinal profile schematic representation with tapered core pressure difference one-way valve shown in Figure 1 is a description object:
When the valve two ends all were sky, the air pressure at two ends was equal, at this moment P1＜P2+P3; Tapered spool 2 is under the effect of pressure Returnning spring 4; Can receive a pressure left, thereby rubber seal 3 is squeezed on valve body 1 internal chamber wall, play the effect that block fluid flows through.
When the valve left end has the fluid right-hand member for sky; If the pressure P 1 that the left end fluid produces is greater than the pressure sum of right-hand member, promptly during P1＞P2+P3, tapered spool 2 will move right; Side and the gap between valve body 1 internal chamber wall of tapered spool 2 are strengthened, fluid just can be from the gap right side of flow valves; If P1≤P2+P3, then very close to each other in the middle of spool and the chamber wall, the left end fluid can not flow to the right side.
When all there was fluid at the valve two ends, if P1≤P2+P3, then very close to each other in the middle of spool and the chamber wall, the left end fluid can not flow to the right side; If P1＞P2+P3, tapered spool 2 will move right, and side and the gap between valve body 1 internal chamber wall of tapered spool 2 are strengthened, just fluid can be from the gap right side of flow valves.
This shows that which kind of state no matter, fluid can only be from flow valves right sides, valve left side, and the situation in flow valves left side will never occur, played the automatic control of one-way flow from the valve right side.
Claims (5)
1. tapered core pressure difference one-way valve is made up of valve body 1, tapered spool 2, rubber seal 3, pressure Returnning spring 4 and spring support 5, it is characterized in that: tapered spool 2 is concentric circle stage bodies; The inflow direction of spool 2 roundlet end face convection cells, the spool side is embedded with rubber seal 3, and spool 2 side gradients and valve body 1 internal chamber wall gradient match; Spool 2 great circle Transverse planes connect pressure Returnning spring 4, and pressure Returnning spring 4 is fixed on spring support 5 centers, and is porose on the spring support 5; Fluid can flow through from the hole, and the pressure difference at spool two ends is depended in the position of spool 2 in valve body, when the valve outside pressure is less than or equal to the valve inside pressure; Tapered spool 2 can be moved to the left, thereby makes rubber seal 3 be squeezed on valve body 1 internal chamber wall carrier frequency channel break; Valve is closed automatically, and when valve outside pressure during greater than the valve inside pressure, tapered spool 2 can move right; Spool and body cavity wall gap are strengthened, and passage is connected, and valve is opened automatically.
2. tapered core pressure difference one-way valve according to claim 1, it is characterized in that: tapered spool 2 is concentric circle stage bodies, the inflow direction of spool 2 roundlet end face convection cells.
3. tapered core pressure difference one-way valve according to claim 1 is characterized in that: spool 2 side gradients and valve body 1 internal chamber wall gradient match.
4. tapered core pressure difference one-way valve according to claim 1 is characterized in that: spool 2 great circle Transverse planes connect pressure Returnning spring 4, because of Returnning spring 4 is arranged, make spool 2 be in normally off
5. tapered core pressure difference one-way valve according to claim 1 is characterized in that: spool 2 close and open the pressure difference that depends on spool 2 two ends, can control one-directional fluid flow automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102259515A CN102401160A (en) | 2011-08-09 | 2011-08-09 | Conical-core pressure-difference check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102259515A CN102401160A (en) | 2011-08-09 | 2011-08-09 | Conical-core pressure-difference check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102401160A true CN102401160A (en) | 2012-04-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102259515A Pending CN102401160A (en) | 2011-08-09 | 2011-08-09 | Conical-core pressure-difference check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102401160A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100746A (en) * | 2013-04-06 | 2014-10-15 | 张鹏镇 | Automatic cut-off valve for accidental explosion and leakage of natural gas pipeline |
| CN104132171A (en) * | 2014-07-27 | 2014-11-05 | 成都国光电子仪表有限责任公司 | Pipe type fuel gas pressure-relief device |
| CN104533438A (en) * | 2014-12-29 | 2015-04-22 | 上海市基础工程集团有限公司 | One-way valve type nozzle for shield machine slurry supply and water supply system |
| CN105298801A (en) * | 2014-06-24 | 2016-02-03 | Lg电子株式会社 | Linear compressor |
| CN106286912A (en) * | 2015-05-13 | 2017-01-04 | 浙江三花股份有限公司 | A kind of pressure-control valve |
| CN107466990A (en) * | 2017-10-16 | 2017-12-15 | 湖南轻创科技有限公司 | Fluid reinforcement structure, check valve, intelligent mosquito eradication equipment, hair dryer, fan, aircraft or rocket or the propeller of ship or submarine |
| CN112555471A (en) * | 2020-11-20 | 2021-03-26 | 扬州船用电子仪器研究所(中国船舶重工集团公司第七二三研究所) | Pressure relief valve for protecting blind-mate fluid connector socket |
| CN112709846A (en) * | 2019-10-25 | 2021-04-27 | 中国石油天然气股份有限公司 | Multi-stage flux control valve, gas circuit system and valve structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1240261A (en) * | 1998-06-20 | 2000-01-05 | 刘继华 | No pressure automatic stop valve |
| JP2000249244A (en) * | 1999-02-26 | 2000-09-12 | Furukawa Co Ltd | Pressure control valve |
| CN2517935Y (en) * | 2001-12-25 | 2002-10-23 | 陈奋森 | Fast inflating safety valve |
| US20030047216A1 (en) * | 2001-09-07 | 2003-03-13 | Kelly Paul A. | Pop-type pressure relief valve |
| CN101324274A (en) * | 2008-07-08 | 2008-12-17 | 中国船舶重工集团公司第七○二研究所 | Multifunctional exhaust valve |
-
2011
- 2011-08-09 CN CN2011102259515A patent/CN102401160A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1240261A (en) * | 1998-06-20 | 2000-01-05 | 刘继华 | No pressure automatic stop valve |
| JP2000249244A (en) * | 1999-02-26 | 2000-09-12 | Furukawa Co Ltd | Pressure control valve |
| US20030047216A1 (en) * | 2001-09-07 | 2003-03-13 | Kelly Paul A. | Pop-type pressure relief valve |
| CN2517935Y (en) * | 2001-12-25 | 2002-10-23 | 陈奋森 | Fast inflating safety valve |
| CN101324274A (en) * | 2008-07-08 | 2008-12-17 | 中国船舶重工集团公司第七○二研究所 | Multifunctional exhaust valve |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100746A (en) * | 2013-04-06 | 2014-10-15 | 张鹏镇 | Automatic cut-off valve for accidental explosion and leakage of natural gas pipeline |
| CN105298801A (en) * | 2014-06-24 | 2016-02-03 | Lg电子株式会社 | Linear compressor |
| CN104132171A (en) * | 2014-07-27 | 2014-11-05 | 成都国光电子仪表有限责任公司 | Pipe type fuel gas pressure-relief device |
| CN104533438A (en) * | 2014-12-29 | 2015-04-22 | 上海市基础工程集团有限公司 | One-way valve type nozzle for shield machine slurry supply and water supply system |
| CN106286912A (en) * | 2015-05-13 | 2017-01-04 | 浙江三花股份有限公司 | A kind of pressure-control valve |
| CN106286912B (en) * | 2015-05-13 | 2019-09-10 | 浙江三花制冷集团有限公司 | A kind of pressure-control valve |
| CN107466990A (en) * | 2017-10-16 | 2017-12-15 | 湖南轻创科技有限公司 | Fluid reinforcement structure, check valve, intelligent mosquito eradication equipment, hair dryer, fan, aircraft or rocket or the propeller of ship or submarine |
| CN112709846A (en) * | 2019-10-25 | 2021-04-27 | 中国石油天然气股份有限公司 | Multi-stage flux control valve, gas circuit system and valve structure |
| CN112709846B (en) * | 2019-10-25 | 2022-10-04 | 中国石油天然气股份有限公司 | Multi-stage flux control valve, gas circuit system and valve structure |
| CN112555471A (en) * | 2020-11-20 | 2021-03-26 | 扬州船用电子仪器研究所(中国船舶重工集团公司第七二三研究所) | Pressure relief valve for protecting blind-mate fluid connector socket |
| CN112555471B (en) * | 2020-11-20 | 2022-12-13 | 扬州船用电子仪器研究所(中国船舶重工集团公司第七二三研究所) | Pressure relief valve for protecting blind-mate fluid connector socket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120404 |