CN1031475C - Direct-drive one-way valve - Google Patents
Direct-drive one-way valve Download PDFInfo
- Publication number
- CN1031475C CN1031475C CN 91110751 CN91110751A CN1031475C CN 1031475 C CN1031475 C CN 1031475C CN 91110751 CN91110751 CN 91110751 CN 91110751 A CN91110751 A CN 91110751A CN 1031475 C CN1031475 C CN 1031475C
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- CN
- China
- Prior art keywords
- valve
- spool
- diaphragm
- valve body
- way valve
- 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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- Multiple-Way Valves (AREA)
Abstract
The present invention relates to a direct-drive one-way valve which is composed of a valve body, a valve core, a valve cavity, an inlet, an outlet, etc. The present invention has the technical scheme that an elastic membrane is added between the valve core and the valve body, which leads that the stressed area of the valve core is enlarged and the valve is switched on by low pressure drop. The disadvantages of small stressed area of a valve core and strong switching on force in the prior art are overcome. The present invention has the advantages of simple structure, high sensitivity and no leakage, and is suitable for middle and low pressure systems of petroleum, chemical industry, national defence, domestic ranges, etc.
Description
The present invention relates to a kind of valve, the direct-drive one-way valve in particularly being applicable to, in the low service system.
Chinese patent CN90108770X proposes has the non-return device with the movable occlusion form of spring compression that a static valve seat and matches with it, in actual conditions, this annular occlusion and spring are owing to be subjected to the influence of multiple active force, as occlusion, spring, seal ring from gravity, inertial force, elastic force etc., and the static pressure of occlusion two side liquids, turbulent flow, kinetic pressure etc., the size of these power, direction and point of action all are subjected to operating mode to influence and change, and all there is not guiding device on occlusion and the seal ring, depend merely on spring compression, this non-return device can't avoid because the sealing ring deformation on the occlusion, the leakage phenomenon that reason such as crooked causes; Particularly in oil, chemical industry, power station, refrigeration, aviation, national defense industry etc., low pressure gas, liquid transmission field, when being subjected to the unstable active force of large size on the occlusion, film and seal ring very easily are out of shape, misplaces, can not guarantee to seal.
Task of the present invention provides the direct-drive one-way valve that a kind of valve core sealed cover has guiding, makes it can be competent at stable under low opening force, low pressure loss condition, reliable, work with not having leakage.
Solution of the present invention is: in the valve body with spool, valve pocket, import and export mix, a diaphragm is fixed between spool and the valve body, constitutes moving wall with spool, the spool of tape channel has sealing surface, sealing has been worn targeting part, slides on the valve body, guarantees that sealing is reliable; Another sealing surface is positioned at input chamber one side, cooperates with valve core sealed cover.
Another solution of the present invention is: a fuse is inserted in the moving wall spool in the above-mentioned valve body, spool is slided on fuse, this fuse has sealing surface and targeting part, cooperates with valve core sealed cover, guarantees that sealing reliably.
In order to strengthen the intensity of diaphragm, supporting plate can be arranged in its one or both sides.
The present invention is simple in structure, have advantages such as opening force is low, highly sensitive, good seal performance, particularly have this structure of sealing surface tape guide, make it also be applicable to civilian gas, liquid supply system in industry extensive uses such as oil, chemical industry, national defense industry.
Fig. 1 is that diaphragm is the one-way valve that ripple sheet, spool cooperate with the fuse targeting part;
Fig. 2 is that disc-shaped diaphragm one side has supporting plate, spool to be bearing on the valve body and has the one-way valve of fuse;
Fig. 3 is that the diaphragm both sides have supporting plate, spool that the one-way valve of Returnning spring is arranged;
Fig. 4 is that diaphragm is the one-way valve that fuse is arranged in corrugated tube shape, the spool;
Fig. 5 is that diaphragm is that plane, spool has Returnning spring, spool targeting part to slide on the one-way valve on the valve body;
Fig. 6 is the one-way valve of spool and diaphragm one;
Fig. 7 is the one-way valve that the Returnning spring guide sleeve is arranged in the spool;
Fig. 8 is the structural representation of diaphragm and spool one.
The invention will be further described below in conjunction with drawings and Examples: the present invention has valve body 1, spool 2, valve pocket, import 4, outlet 12, there is a diaphragm 3 to be fixed between spool 2 and the valve body 1 in the valve pocket, constitute moving wall with spool 2, valve pocket is divided into input, output two Room, is useful on the passage of fluid process on the spool 2.The one-way valve that Fig. 2, Fig. 5, Fig. 7 provide, be the embodiment schematic representation of valve core sealed cover 10 targeting parts slip on valve body 1, spool 2 has an end bearing at least on valve body 1, cooperate with the supporting of valve body by spool, sealing surface is play the guiding role, another sealing surface 11 is positioned at input chamber 8 one sides, cooperates with valve core sealed cover, finishes sealing.
Another embodiment of the present invention such as Fig. 1, Fig. 3, shown in Figure 4, there is a fuse 6 to be inserted in the spool 2, spool is slided on fuse, fuse two withstands on the valve body, spool is played guiding, supporting effect, this fuse has sealing surface 11 and targeting part, has cooperated sealing, leading role with valve core sealed cover 10.
In actual conditions, after the moving wall of input chamber 8 one sides is subjected to certain opening force, produce displacement, two sealing surfaces are thrown off, fluid from import 4, input chamber 8 through valve core channel to export chamber 9, outlet 12 is flowed out.When hydrodynamic pressure or spool in the output chamber 9 from gravity or diaphragm, spring 7 elastic pressures etc. during greater than opening force, moving wall resets, two sealing surfaces accurately compress sealing under the guiding of targeting part.Produce linear sealing strip during the sealing of two sealing surfaces, wherein a sealing surface is preferably the lip shape.The material of sealing surface can be different according to the requirement of sealing load.In low service system, select for use rubber, nylon elastomeric material to make sealing surface, seal lip is then selected metallic material for use, also available nylon, teflon; In middle pressure, high-temperature systems, use, select for use non-elastomeric material such as metal, graphite etc. to make sealing surface.
The diaphragm shapes that the present invention adopts: can be ripple sheet, tubulose, dish or plane; The material of diaphragm can be macromolecular material such as rubber, polyurethane elastomer material, nylon etc., also can be metallic material, can also use glass, carbon, boron fiber reinforced composite materials.Diaphragm and spool can integral body be made.In order to strengthen the intensity of diaphragm 3, can add supporting plate 5 (seeing Fig. 2,3,5,7) in the one or both sides of diaphragm.
From accompanying drawing as can be seen, the one-way valve that the present invention relates to, the position of placing is with respect to moving wall, can be horizontal, also standing, therefore moving wall resets except the pressure difference of fluid, can be the reset tension spring between valve body and spool or the power of Returnning spring, also can be the elastic force of diaphragm self, can also be spool from gravity.
Claims (10)
1, a kind of direct-drive one-way valve, have valve body (1), spool (2), valve pocket, import (4), outlet (12), there is a diaphragm (3) to be fixed between spool (2) and the valve body (1) in the valve pocket, constitute moving wall with spool (2), valve pocket is divided into input, output two Room, passage is arranged on the spool, it is characterized in that: the spool (2) on this moving wall has sealing surface (10), sealing surface has targeting part, slide on the valve body (1), another sealing surface (11) is positioned at input chamber one side, cooperates with valve core sealed cover.
2, one-way valve as claimed in claim 1 is characterized in that can there be supporting plate (5) one or both sides of diaphragm (3).
3, one-way valve as claimed in claim 1 or 2 is characterized in that diaphragm (3) can make corrugated plate, tubulose, and is dish-shaped or plane; Diaphragm can be made by macromolecular material or metallic material, also useable glass, carbon, boron fiber reinforced composite materials.
4, one-way valve as claimed in claim 1 or 2 is characterized in that between valve body (1) and the spool (2) spring (7) being housed, and is used for valve core reset.
5, one-way valve as claimed in claim 3 is characterized in that between valve body (1) and the spool (2) spring (7) being housed, and is used for valve core reset.
6, a kind of direct-drive one-way valve, have valve body (1), spool (2), valve pocket, import (4), outlet (12), there is a diaphragm (3) to be fixed between spool (2) and the valve body (I) in the valve pocket, constitute moving wall with spool (2), valve pocket is divided into input, output two Room, passage is arranged on the spool, it is characterized in that: the spool (2) on this moving wall has sealing surface (10), sealing surface has targeting part, there is a fuse (6) to be inserted in the spool (2), spool is slided on the fuse, and this fuse has sealing surface (11) and targeting part, cooperates with valve core sealed cover.
7, one-way valve as claimed in claim 6 is characterized in that can there be supporting plate (5) one or both sides of diaphragm (3).
8, as claim 6 or 7 described one-way valves, it is characterized in that diaphragm (3) can make corrugated plate, tubulose, dish-shaped or plane; Diaphragm can be made by macromolecular material or metallic material, also useable glass, carbon boron fiber reinforced composite materials.
9, as claim 6 or 7 described one-way valves, it is characterized in that between valve body (1) and the spool (2) spring (7) being housed, be used for valve core reset.
10, one-way valve as claimed in claim 8 is characterized in that between valve body (1) and the spool (2) spring (7) being housed, and is used for valve core reset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91110751 CN1031475C (en) | 1991-11-12 | 1991-11-12 | Direct-drive one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91110751 CN1031475C (en) | 1991-11-12 | 1991-11-12 | Direct-drive one-way valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1072251A CN1072251A (en) | 1993-05-19 |
| CN1031475C true CN1031475C (en) | 1996-04-03 |
Family
ID=4910248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91110751 Expired - Fee Related CN1031475C (en) | 1991-11-12 | 1991-11-12 | Direct-drive one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1031475C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2854261Y (en) * | 2005-07-20 | 2007-01-03 | 徐名勇 | Thin-film check valve used in ozone/ozone water loop |
| CN103603974B (en) * | 2013-11-07 | 2015-08-26 | 市下控股有限公司 | Anti-siphon pressurized one-way valve |
| CN110821979A (en) * | 2019-11-04 | 2020-02-21 | 黑龙江工程学院 | Composite material corrugated film disc, hot-press forming die and hot-press forming method thereof |
-
1991
- 1991-11-12 CN CN 91110751 patent/CN1031475C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1072251A (en) | 1993-05-19 |
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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 | ||
| 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 |