CN202274153U - Slow-closure check valve - Google Patents
Slow-closure check valve Download PDFInfo
- Publication number
- CN202274153U CN202274153U CN2011203521159U CN201120352115U CN202274153U CN 202274153 U CN202274153 U CN 202274153U CN 2011203521159 U CN2011203521159 U CN 2011203521159U CN 201120352115 U CN201120352115 U CN 201120352115U CN 202274153 U CN202274153 U CN 202274153U
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- chock
- pump
- support platform
- 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
- Check Valves (AREA)
- Details Of Valves (AREA)
- Pipe Accessories (AREA)
Abstract
The utility model discloses a slow-closure check valve, which comprises a valve body, wherein the two ends of the valve body are provided with a water inlet and a water outlet respectively; a valve plate which is transversely arranged in the valve body is rotationally hinged in the inner cavity of the valve body; the lower end of the valve body is provided with a support platform; a guide hole is formed in the support platform; a resistance rod is arranged in the guide hole in a sliding way; a spring is sleeved outside the resistance rod; a rubber cushion pad is bonded on the outer side wall of the valve rod; a chock block is fixed on an inner wall above the valve body; the top end of the chock block is provided with a soft cushion block; and the top end of the chock block is pressed against the side wall of the valve plate. The slow-closure check valve is arranged in a pipeline or at the outlet of a pump, is applied to a safety device for preventing water hammer generated by inverse flow of a medium from impacting pump inversion when the pump stops running, and has the advantages of stable and reliable sealing performance, wear resistance, long service life, stable running and freeness from vibration.
Description
Technical field
The utility model relates to the opening/shutting valve class, specifically is a kind of buffer valve.
Background technique
At present, buffer valve structural type is of all kinds, and the form of open-close type safety check is arranged; External cushion dashpot form is also arranged; But the buffering when all just needing a kind of liquid to accomplish valve closing is eliminated destructive water hammer, to ensure the property safe and reliable to operation of water supply line facility.But often because the leakage or the obstruction of hydraulic pipe line lose due function.
The model utility content
The purpose of the utility model provides a kind of buffer valve; Be installed in the pipeline or the delivery side of pump place; Be used for preventing when pump is shut down that medium from flowing backwards produces the safety installations of impact of water hammer pump reversing, sealability is reliable and stable, wear-resistant, long service life, operate steadily, friction.
The technological scheme of the utility model is following:
A kind of buffer valve includes valve body, and two ends of valve body is respectively water intake, water outlet; Be rotatablely hinged with the valve plate that is horizontally placed in the valve body in the inner chamber of valve body, the lower end of valve body is a support platform, is provided with pilot hole in the support platform; Be slidingly fitted with drag strut in the pilot hole, drag strut is set with spring outward, is bonded with rubber buffer on the outer side wall of described valve rod; The inwall of valve body top is fixed with chock, and the top of chock has soft cushion block, and the top overhead of chock is in the sidewall of valve plate.
The water intake of described valve body is provided with pressure transducer.
The utility model is installed in the pipeline or the delivery side of pump place; Be used for preventing when pump is shut down that the medium refluence from producing the safety installations of impact of water hammer pump reversing, it is big to have the light open degree of flap, and power savings is remarkable; Fluid resistance is little; Sealability is reliable and stable, wear-resistant, long service life, operate steadily, friction, be applicable in the system pipelines such as plumbing, fire-fighting, HVAC or pump outlet prevents that medium from flowing backwards and produces water hammer pipeline or pump are produced harm.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Referring to accompanying drawing, a kind of buffer valve includes valve body 1; The two ends of valve body 1 are respectively water intake 2, water outlet 3, are rotatablely hinged with the valve plate 4 that is horizontally placed in the valve body in the inner chamber of valve body 1, and the lower end of valve body is a support platform 5; Be provided with pilot hole 6 in the support platform 5, be slidingly fitted with drag strut 7 in the pilot hole 6, the drag strut 7 outer springs 8 that are set with; Be bonded with rubber buffer 9 on the outer side wall of valve rod, the inwall of valve body top is fixed with chock 10, and the top of chock has soft cushion block; The top overhead of chock 10 is in the sidewall of valve plate, and the water intake of valve body is provided with pressure transducer 11.
Claims (2)
1. a buffer valve includes valve body, it is characterized in that: two ends of valve body is respectively water intake, water outlet; Be rotatablely hinged with the valve plate that is horizontally placed in the valve body in the inner chamber of valve body, the lower end of valve body is a support platform, is provided with pilot hole in the support platform; Be slidingly fitted with drag strut in the pilot hole; Drag strut is set with spring outward, is bonded with rubber buffer on the outer side wall of described valve rod, and the inwall of valve body top is fixed with chock; The top of chock has soft cushion block, and the top overhead of chock is in the sidewall of valve plate.
2. buffer valve according to claim 1 is characterized in that: the water intake of described valve body is provided with pressure transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203521159U CN202274153U (en) | 2011-09-20 | 2011-09-20 | Slow-closure check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203521159U CN202274153U (en) | 2011-09-20 | 2011-09-20 | Slow-closure check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202274153U true CN202274153U (en) | 2012-06-13 |
Family
ID=46194514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203521159U Expired - Fee Related CN202274153U (en) | 2011-09-20 | 2011-09-20 | Slow-closure check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202274153U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105228667A (en) * | 2013-04-02 | 2016-01-06 | 美德乐控股公司 | There is the equipment of flow channel |
-
2011
- 2011-09-20 CN CN2011203521159U patent/CN202274153U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105228667A (en) * | 2013-04-02 | 2016-01-06 | 美德乐控股公司 | There is the equipment of flow channel |
| CN105228667B (en) * | 2013-04-02 | 2017-06-06 | 美德乐控股公司 | Equipment with flow channel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202659991U (en) | Slow-closing check valve | |
| CN202132560U (en) | Tiny drag slow shut check valve | |
| CN203880155U (en) | Noise preventing check valve | |
| CN202561155U (en) | Anti-high-pressure flow-stabilization type micro-resistance check valve | |
| CN104565425A (en) | C-shaped four-eccentric slurry pump control valve | |
| CN202561144U (en) | Flow-stabilization type micro-resistance check valve | |
| CN202274153U (en) | Slow-closure check valve | |
| CN202708220U (en) | Noise reduction structure of pump pipeline valve applied to water supplying and draining system | |
| CN202561143U (en) | Micro-resistance check valve | |
| CN203686467U (en) | Water hammer buffering device | |
| CN103388692A (en) | Gas pipeline check valve | |
| CN106015660A (en) | Quick closing check valve | |
| CN104373639B (en) | Double plate butterfly swing check valves with shunting fan lobe | |
| CN104180029A (en) | Screwing opening type check valve capable of balancing pressure automatically | |
| CN201696683U (en) | Built-in buffering check valve | |
| CN204756037U (en) | Check valve of waterproof hammer | |
| CN202768957U (en) | Double-clack slowly closing check valve | |
| CN201696680U (en) | Opening and closing type check valve | |
| CN202852086U (en) | Double-valve-clack muffle check valve | |
| CN202580147U (en) | Slow-closure type hydraulic check valve | |
| CN205896290U (en) | Fast closed check valve | |
| CN210344337U (en) | Butterfly valve with lower limiting device | |
| CN204459248U (en) | The eccentric slurry pump control valve of C shape four | |
| CN201827462U (en) | Check valve with sealing structure | |
| CN203202314U (en) | Float clack type check valve |
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: 20120613 Termination date: 20120920 |