CN204140976U - A kind of high pressure buffer valve - Google Patents
A kind of high pressure buffer valve Download PDFInfo
- Publication number
- CN204140976U CN204140976U CN201420599150.4U CN201420599150U CN204140976U CN 204140976 U CN204140976 U CN 204140976U CN 201420599150 U CN201420599150 U CN 201420599150U CN 204140976 U CN204140976 U CN 204140976U
- Authority
- CN
- China
- Prior art keywords
- valve body
- spool
- valve
- guide ring
- cage lid
- 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
Landscapes
- Details Of Valves (AREA)
Abstract
A kind of high pressure buffer valve of the utility model relates to valve technology field, solve the technical problem that safety check of the prior art does not have the effect of high pressure Slow Close, comprise valve body, unidirectional in be press-sealed in the spool of valve body, it is characterized in that: also comprise the recirculation valve body being arranged at valve body side, recirculation valve body is connected with valve body by cage lid, be provided with spool jacking block in cage lid, cage lid is connected by swing bolt with the spool push rod through spool; Described spool front end is arranged in front guide ring in axial sliding, and front guide ring is arranged in valve body; The rear end of described spool is arranged in rear guide ring by guide rod in axial sliding, rear guide ring be installed on be packed in valve body upper shed valve gap in; The utility model product is once pump duty is lower than preset flow, and bypass opens to guarantee minimum discharge needed for pump completely; Even if main road is closed completely, minimum discharge also can carry out automatic cycle by bypass, effectively prevents cavitation erosion and flash distillation to the destruction of valve element.
Description
Technical field
The utility model relates to valve technology field, is specifically related to a kind of high pressure buffer valve.
Background technique
Safety check is also known as check valve, one-way valve, one-way valve or check valve, and its effect is the function ensureing medium directional flow in pipeline and unlikely refluence.Safety check divides by structure, can be divided into Lift check valve, Swing check valve and butterfly check valve three kinds, and Lift check valve can be divided into vertical and straight-through type two kinds; Swing check valve is divided into single-lobe formula, Double-disc type and multi-clove type three kinds; Butterfly check valve is butterfly bivalve, butterfly single-lobe.Single-lobe Swing check valve is generally applicable to the occasion of medium caliber, when heavy caliber pipeline selects single-lobe Swing check valve, is reduce water hammer pressure, preferably adopts the buffer valve that can reduce water hammer pressure.
Safety check of the prior art, often do not have the effect of high pressure Slow Close, and sealing effect is bad, makes troubles to production work.The part cavitation erosion infringement that may occur in the pump housing when underrun and instability.
Model utility content
The purpose of this utility model is to solve deficiency of the prior art, provides a kind of high pressure buffer valve, opens to guarantee minimum discharge needed for pump completely by bypass, prevents cavitation erosion and flash distillation to the destruction of valve element.
For solving the problems of the technologies described above, the technological scheme that the utility model is taked is: a kind of high pressure buffer valve, comprise valve body, unidirectional in be press-sealed in the spool of valve body, also comprise the recirculation valve body being arranged at valve body side, recirculation valve body is connected with valve body by cage lid, be provided with spool jacking block in cage lid, cage lid is connected by swing bolt with the spool push rod through spool.
Described spool front end is arranged in front guide ring in axial sliding, and front guide ring is arranged in valve body; The rear end of described spool is arranged in rear guide ring by guide rod in axial sliding, rear guide ring be installed on be packed in valve body upper shed valve gap in.
Described valve body and the contacting point of valve gap are provided with pad, and described guide rod is located in the blind hole of spool by spring.
Be provided with spring between described spool jacking block and recirculation valve body, the contact end of cage lid and valve body and recirculation valve body is provided with pad, and the cylindrical of cage lid and valve body contact place are also provided with O type circle.
Described recirculation valve body is fixedly connected with valve body there to be stud by spring washer, hexagon nut.
Compared with prior art, the beneficial effects of the utility model are: the utility model product is once pump duty is lower than preset flow, and bypass opens to guarantee minimum discharge needed for pump completely; Even if main road is closed completely, namely main road flow is zero, and minimum discharge also can carry out automatic cycle by bypass, effectively prevents cavitation erosion and flash distillation to the destruction of valve element.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the utility model product embodiments;
In the drawings, 1, valve body; 2, front guide ring; 3, spool; 4, spool push rod; 5, spring; 6, pad; 7, guide rod; 8, rear guide ring; 9, valve gap; 10, spool jacking block; 11, cage lid; 12, spring washer; 13, hexagon nut; 14, stud; 16, recirculation valve body; 17, pad; 19, O type circle; 21, swing bolt.
Embodiment
Composition graphs 1, for the example structure schematic diagram of a kind of high pressure buffer valve of the utility model, it comprises valve body 1, unidirectional in be press-sealed in the spool 3 of valve body 1, also comprise the recirculation valve body 16 being arranged at valve body 1 side, recirculation valve body 16 is connected with valve body 1 by cage lid 11, be provided with spool jacking block 10 in cage lid 11, cage lid 11 is connected by swing bolt 21 with the spool push rod 4 through spool 3; Described spool 3 front end is arranged in front guide ring 2 in axial sliding, and front guide ring 2 is arranged in valve body 1; The rear end of described spool 3 is arranged in rear guide ring 8 by guide rod 7 in axial sliding, rear guide ring 8 be installed on be packed in valve body 1 upper shed valve gap 9 in; Described valve body 1 is provided with pad 6 with the contacting point of valve gap 9, and described guide rod 7 is located at by spring 5 in the blind hole of spool 3; Be provided with spring 5 between described spool jacking block 10 and recirculation valve body 16, cage lid 11 is provided with pad 6 with the contact end of valve body 1 and recirculation valve body 16, and cylindrical and valve body 1 contacting point of cage lid 11 are also provided with O type circle 19; Described recirculation valve body 16 is fixedly connected with valve body 1 there to be stud 14 by spring washer 12, hexagon nut 13.
The simple change of those of ordinary skill in the art and replacement are all within protection domain of the present utility model.
Claims (1)
1. a high pressure buffer valve, comprise valve body (1), the spool (3) of valve body (1) is press-sealed in unidirectional, it is characterized in that: also comprise the recirculation valve body (16) being arranged at valve body (1) side, recirculation valve body (16) is connected with valve body (1) by cage lid (11), spool jacking block (10) is provided with in cage lid (11), cage lid (11) is connected by swing bolt (21) with the spool push rod (4) through spool (3), described spool (3) front end is arranged in front guide ring (2) in axial sliding, front guide ring (2) is arranged in valve body (1), the rear end of described spool (3) is arranged in rear guide ring (8) by guide rod (7) in axial sliding, rear guide ring (8) is installed on and is packed in the valve gap (9) of valve body (1) upper shed, described valve body (1) is provided with pad (6) with the contacting point of valve gap (9), described guide rod (7) is located in the blind hole of spool (3) by spring (5), spring (5) is provided with between described spool jacking block (10) and recirculation valve body (16), cage lid (11) is provided with pad (6) with the contact end of valve body (1) and recirculation valve body (16), cylindrical and valve body (1) contacting point of cage lid (11) are also provided with O type circle (19), described recirculation valve body (16) is by spring washer (12), hexagon nut (13) is fixedly connected with valve body (1) there to be stud (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420599150.4U CN204140976U (en) | 2014-09-29 | 2014-09-29 | A kind of high pressure buffer valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420599150.4U CN204140976U (en) | 2014-09-29 | 2014-09-29 | A kind of high pressure buffer valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204140976U true CN204140976U (en) | 2015-02-04 |
Family
ID=52417660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420599150.4U Expired - Fee Related CN204140976U (en) | 2014-09-29 | 2014-09-29 | A kind of high pressure buffer valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204140976U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163122A (en) * | 2018-10-29 | 2019-01-08 | 镇江市鑫浩塑胶有限公司 | A kind of spring loaded check valve structure |
-
2014
- 2014-09-29 CN CN201420599150.4U patent/CN204140976U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163122A (en) * | 2018-10-29 | 2019-01-08 | 镇江市鑫浩塑胶有限公司 | A kind of spring loaded check valve structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203441853U (en) | Pilot-operated type water pressure overflow valve of novel structure | |
| CN202531934U (en) | Duckbilled check valve | |
| CN201650709U (en) | Hydraulic control valve | |
| CN204140976U (en) | A kind of high pressure buffer valve | |
| CN204692595U (en) | Industrial refrigeration right-angle type screw down nonreturn valve | |
| CN204025716U (en) | Sealed type stop valve | |
| CN203098887U (en) | Special high-pressure difference angle valve for black water | |
| CN202560255U (en) | Inserting type hard sealing bidirectional lock | |
| CN202972090U (en) | Automatic drain valve of gas storage tank | |
| CN204729687U (en) | Lift check valve | |
| CN204553944U (en) | A kind of one-way valve of anti-backflow | |
| CN204140545U (en) | A kind of hydraulic mechanism increasing cylinder buffer stroke | |
| CN204610984U (en) | A kind of safety check | |
| CN204828817U (en) | Novel relief valve | |
| CN202580147U (en) | Slow-closure type hydraulic check valve | |
| CN203730860U (en) | Check valve for flow regulation | |
| CN202451900U (en) | Right-angle quick closing check valve | |
| CN204345002U (en) | A kind of new structure safety check | |
| CN203770684U (en) | Valve sealing structure | |
| CN204281177U (en) | A kind of hydraulic jack | |
| CN208778723U (en) | A kind of tubular valve of L with corrosion proof function | |
| CN104373341A (en) | Overpressure protection device of positive displacement pump | |
| CN204284477U (en) | A kind of stop valve spool pressure relief means thereon | |
| CN103939337A (en) | Gear pump with built-in unloading device | |
| CN203477327U (en) | Lever-type stop valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170313 Address after: 325102 Zhejiang province Yongjia County Oubei Town East Industrial Zone Patentee after: Zhejiang Liang Jing Valve Co.,Ltd. Address before: 325100 Zhejiang province Yongjia County Oubei Town Bridge Industrial Zone Patentee before: LIANGJING GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |