CN201368241Y - Double-spring type pressure-reducing valve - Google Patents
Double-spring type pressure-reducing valve Download PDFInfo
- Publication number
- CN201368241Y CN201368241Y CNU2009201260655U CN200920126065U CN201368241Y CN 201368241 Y CN201368241 Y CN 201368241Y CN U2009201260655 U CNU2009201260655 U CN U2009201260655U CN 200920126065 U CN200920126065 U CN 200920126065U CN 201368241 Y CN201368241 Y CN 201368241Y
- Authority
- CN
- China
- Prior art keywords
- sealing plate
- spring
- pressure
- utility
- model
- 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
Links
Images
Landscapes
- Control Of Fluid Pressure (AREA)
Abstract
The utility model discloses a double-spring type pressure-reducing valve, comprising a valve body, a pressure-adjusting spring, a membrane and a valve core; a sealing plate is arranged at the lower part of the valve core; a resetting spring arranged at the lower part of the sealing plate is also included, the upper end of the resetting spring is leaned against with the lower end surface of the sealing plate; in the utility model, the resetting spring can rapidly and effectively push the sealing plate to ascend under the conditions of zero pressure at entrance and zero pre-tightening force of pressure-adjusting spring, so as to achieve rapid and effective sealing.
Description
Technical field
The utility model relates to a kind of reduction valve, is a kind of dual spring formula reduction valve.
Background technique
Reduction valve is a kind of special arrangement of automatic reduction working pressure of pipeline, and it can be reduced to pipeline higher hydraulic pressure before the valve the required level of pipeline behind the valve.Reduction valve is widely used in tall building, too high zone, mine and other occasions of city water-supply pipe network hydraulic pressure, and each obtains suitable service hydraulic pressure and flow with water spot in the water system to ensure to.
The basic role principle of reduction valve is that the scope that hydraulic pressure falls is regulated automatically by the diaphragm that connects spool or the import and export differential water pressures of spool both sides by the local resistance reduction hydraulic pressure of valve inner flow passage to current.Under the outlet pressure condition with higher, outlet pressure promotes the back pressure that diaphragm adds the upper inlet medium, drives spool and drive sealing plate up, reduces flow channel, thereby reduces outlet pressure; The reduction valve of prior art is under zero the situation, to rise because the pressure of water can not promote sealing plate quickly and effectively in inlet zero pressure and pressure adjusting spring pretightening force, can not make the rapid effective seal of reduction valve, causes interior leakage.
Therefore, needing a kind of reduction valve, is under zero the situation, sealing plate is risen in inlet zero pressure and pressure adjusting spring pretightening force, reaches rapid effective seal.
The model utility content
In view of this, the purpose of this utility model provides a kind of dual spring formula reduction valve, in inlet zero pressure and pressure adjusting spring pretightening force is under zero the situation, sealing plate is risen, and reaches rapid effective seal, leaks phenomenon in stopping and takes place.
Dual spring formula reduction valve of the present utility model comprises valve body, pressure adjusting spring, diaphragm and spool, and described spool bottom is provided with sealing plate, also comprises the Returnning spring that is arranged on the sealing plate bottom, and the sealing plate lower end surface is withstood in the upper end of Returnning spring.
Further, when described sealing plate sealed, the decrement of Returnning spring was zero;
Further, described Returnning spring is enclosed within the guide pin bushing excircle, fixedlys connected with the sealing plate lower end surface in described guide pin bushing upper-end surface.
The beneficial effects of the utility model are: dual spring formula reduction valve of the present utility model, the bottom is provided with Returnning spring, be that Returnning spring can promote sealing plate quickly and effectively and rise, and reaches rapid effective seal under zero the situation in inlet zero pressure and pressure adjusting spring pretightening force.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Accompanying drawing is a structural representation of the present utility model.
Embodiment
Accompanying drawing is a structural representation of the present utility model, as shown in the figure: the dual spring formula reduction valve of present embodiment, comprise valve body 1, pressure adjusting spring 2, diaphragm 3 and spool 4, described spool 4 bottoms are provided with sealing plate 5, also comprise the Returnning spring 6 that is arranged on sealing plate 5 bottoms, sealing plate 5 is fixedly connected with guide pin bushing 7, Returnning spring 6 is enclosed within guide pin bushing 7 excircles, sealing plate 5 lower end surfaces are withstood in the upper end of Returnning spring 6, Returnning spring 6 withstands sealing plate 5 by guide pin bushing 7, because the leading role of guide pin bushing can not be offset Returnning spring 6; During sealing plate 5 sealings, the decrement of Returnning spring 6 is zero, can make Returnning spring 6 be unlikely to influence the sensitivity of reduction valve.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (3)
1. dual spring formula reduction valve, comprise valve body (1), pressure adjusting spring (2), diaphragm (3) and spool (4), described spool (4) bottom is provided with sealing plate (5), it is characterized in that: also comprise the Returnning spring (6) that is arranged on sealing plate (5) bottom, sealing plate (5) lower end surface is withstood in the upper end of Returnning spring (6).
2. dual spring formula reduction valve according to claim 1 is characterized in that: during described sealing plate (5) sealing, the decrement of Returnning spring (6) is zero.
3. dual spring formula reduction valve according to claim 2 is characterized in that: described Returnning spring (6) is enclosed within guide pin bushing (7) excircle, fixedlys connected with sealing plate (5) lower end surface in described guide pin bushing (7) upper-end surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201260655U CN201368241Y (en) | 2009-01-09 | 2009-01-09 | Double-spring type pressure-reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201260655U CN201368241Y (en) | 2009-01-09 | 2009-01-09 | Double-spring type pressure-reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201368241Y true CN201368241Y (en) | 2009-12-23 |
Family
ID=41487134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201260655U Expired - Fee Related CN201368241Y (en) | 2009-01-09 | 2009-01-09 | Double-spring type pressure-reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201368241Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102125706A (en) * | 2011-01-27 | 2011-07-20 | 重庆山外山科技有限公司 | Self reset pressure relief valve for hemodialysis |
| CN103310198A (en) * | 2013-06-17 | 2013-09-18 | 公安部第一研究所 | Standard test card and detecting method for second-generation ID card fingerprint acquisition and identification equipment |
| CN104879540A (en) * | 2014-09-24 | 2015-09-02 | 杭州春江阀门有限公司 | Pressure reducing valve with valve closing function |
| CN113357413A (en) * | 2020-03-04 | 2021-09-07 | 盾安环境技术有限公司 | Pressure regulating valve |
-
2009
- 2009-01-09 CN CNU2009201260655U patent/CN201368241Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102125706A (en) * | 2011-01-27 | 2011-07-20 | 重庆山外山科技有限公司 | Self reset pressure relief valve for hemodialysis |
| CN102125706B (en) * | 2011-01-27 | 2012-10-10 | 重庆山外山科技有限公司 | Self reset pressure relief valve for hemodialysis |
| CN103310198A (en) * | 2013-06-17 | 2013-09-18 | 公安部第一研究所 | Standard test card and detecting method for second-generation ID card fingerprint acquisition and identification equipment |
| CN104879540A (en) * | 2014-09-24 | 2015-09-02 | 杭州春江阀门有限公司 | Pressure reducing valve with valve closing function |
| CN113357413A (en) * | 2020-03-04 | 2021-09-07 | 盾安环境技术有限公司 | Pressure regulating valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201368241Y (en) | Double-spring type pressure-reducing valve | |
| CN201297397Y (en) | Water pressure driving valve | |
| CN201159301Y (en) | Leading control hydraulic valve | |
| CN203500632U (en) | Hydraulic remote control ball float valve | |
| CN205896376U (en) | Balanced cage type adjusting valve of two direction low noises | |
| CN101245779B (en) | Oil balancing system of reciprocating oil isolation membrane pump fluid end | |
| CN203321549U (en) | Hydraulic cylinder control valve without unloading impact resonance | |
| CN201818849U (en) | Wafer type muffling check valve with simple valve seat mounting structure and improved air tightness | |
| CN204114259U (en) | There is the reduction valve of valve closing function | |
| CN104879540A (en) | Pressure reducing valve with valve closing function | |
| CN201032033Y (en) | Special-shaped sealing ring with groove | |
| CN210687778U (en) | Anti-leakage drainer | |
| CN201583003U (en) | Solar energy water heater capable of automatically supplying water | |
| CN203395340U (en) | Low-resistance direct-flowing type hydraulic control valve | |
| CN203297703U (en) | Automatic exhaust valve | |
| CN106049597A (en) | Anchor-block drain tap well applicable to long-distance large-diameter exposed-laying water pipe | |
| CN2849534Y (en) | Closed direct jointing heating system for high-rise buildings | |
| CN201954055U (en) | Asymmetric water sealing check valve | |
| CN110594583A (en) | Anti-leakage drainer | |
| CN219432528U (en) | Low-resistance backflow preventer with air partition function | |
| CN203335953U (en) | Reducing valve | |
| CN204628681U (en) | A kind of piston type super-low voltage reduction valve | |
| CN203784399U (en) | Low-maintenance type pressure relief/sustaining valve provided with external spring | |
| CN201739569U (en) | Preventer for backflow of liquid | |
| CN205804467U (en) | Be suitable to the anchor block formula drain tap well of long-distance large-caliber surface aqueduct |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20110109 |