CN204372243U - A kind of safety check - Google Patents
A kind of safety check Download PDFInfo
- Publication number
- CN204372243U CN204372243U CN201420860510.1U CN201420860510U CN204372243U CN 204372243 U CN204372243 U CN 204372243U CN 201420860510 U CN201420860510 U CN 201420860510U CN 204372243 U CN204372243 U CN 204372243U
- Authority
- CN
- China
- Prior art keywords
- spring
- clamping rings
- spool
- annular lug
- gasket seal
- 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
Abstract
A kind of safety check, comprise valve body and spool, valve body is connected with bonnet, the first clamping rings is provided with in described valve body, the second clamping rings is provided with in described bonnet, first clamping rings and the second clamping rings are sheathed on the two ends of spool respectively, described spool is provided with the first annular lug and the second annular lug, groove is formed between described first annular lug and the second annular lug, described groove is provided with gasket seal, the outer wall of described spool is arranged with spring, the bumping post with spring adaptation is provided with between described spool and spring, described spring is between the first annular lug and the first clamping rings, described bonnet is provided with the ring baffle coordinated with gasket seal, described ring baffle is provided with fillet.The utility model structure is simple, practical.
Description
Technical field
The utility model relates to a kind of valve, is specially a kind of safety check.
Background technique
Safety check is the valve that automatically can stop reverse flow of fluids.The flap of safety check is opened under fluid pressure action, and fluid flows to outlet side from suction side.When suction side pressure is lower than outlet side, flap is automatically closed in case fluid flows backwards under the effect of the factor such as fluid pressure difference, gravity own.
At present, existing safety check mostly utilizes spring to reset, but spring is often because of the long-term impact of fluid, the limit that caused spring to exceed, and spring can not be resetted, cause safety check to be scrapped ahead of time, decrease the working life of equipment, and then reduce the utilization ratio of resource.
Traditional safety check in use, easily damage by gasket seal, and often because the problem of sealing causes fluid countercurrent current, and then impact is produced, and reduces working efficiency while adding maintenance rate.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide that a kind of spring can not lose efficacy, maintenance rate is low, the safety check of good seal performance.
For achieving the above object, the utility model provides following technological scheme: a kind of safety check, comprise valve body and spool, valve body is connected with bonnet, the first clamping rings is provided with in described valve body, the second clamping rings is provided with in described bonnet, first clamping rings and the second clamping rings are sheathed on the two ends of spool respectively, described spool is provided with the first annular lug and the second annular lug, groove is formed between described first annular lug and the second annular lug, described groove is provided with gasket seal, the outer wall of described spool is arranged with spring, the bumping post with spring adaptation is provided with between described spool and spring, described spring is between the first annular lug and the first clamping rings, described bonnet is provided with the ring baffle coordinated with gasket seal, described ring baffle is provided with fillet.
Further, the large 0.5cm-2cm of length that extremely prescribes a time limit than spring-compressed of the length of described bumping post.
Further, the center line of described first clamping rings and the center line of the second clamping rings are same straight line.
Further, the diameter of described gasket seal 2cm-4cm larger than the diameter of ring baffle.
Further, the reset condition of described spring is Partial shrinkage.
Contrast the deficiencies in the prior art, the beneficial effect that the technological scheme that the utility model provides is brought: 1. the utility model passes through bumping post, and the large 0.5cm-2cm of length that the length of shelves post is extremely prescribed a time limit than spring-compressed, spring is effectively prevented to be subject to limit extruding for a long time and to cause spring failure, irreducible phenomenon to occur, and then reduce the maintenance rate of safety check, extend working life, improve the utilization ratio of resource.2. the utility model is by the first annular lug and the effective fixing seal pad of the second annular lug, when the valve is open, coordinate the flow direction of fluid, gasket seal is fitted the first annular lug, gasket seal can not be out of shape because of fluid flowing, when the valve is closed, by spring reset, gasket seal is pushed into ring baffle, to be fitted ring baffle by gasket seal, namely play the effect of sealing, gasket seal can be prevented again to be out of shape, effectively reduce the maintenance rate of equipment, and improve working efficiency.
Accompanying drawing explanation
Fig. 1 is cross-sectional schematic of the present utility model.
Embodiment
With reference to Fig. 1, the utility model is described further.
A kind of safety check, comprise valve body 1 and spool 2, valve body 1 is connected with bonnet 3, the first clamping rings 11 is provided with in described valve body 1, the second clamping rings 31 is provided with in described bonnet 3, first clamping rings 11 and the second clamping rings 31 are sheathed on the two ends of spool 2 respectively, described spool 2 is provided with the first annular lug 21 and the second annular lug 22, groove 23 is formed between described first annular lug 21 and the second annular lug 22, described groove 23 is provided with gasket seal 24, the outer wall of described spool 2 is arranged with spring 4, the bumping post 25 with spring 4 adaptation is provided with between described spool 2 and spring 4, described spring 4 is between the first annular lug 21 and the first clamping rings 11, described bonnet 3 is provided with the ring baffle 32 coordinated with gasket seal 24, described ring baffle 32 is provided with fillet, fillet can effectively prevent gasket seal 24 from being swiped by ring baffle 32 and damaging.
First clamping rings 11 and the second clamping rings 31 are for limiting the position of spool 2, and the first annular lug 21 and the second annular lug 22 are for limiting the position of gasket seal 24 simultaneously.
When the valve is open, coordinate the flow direction of fluid, gasket seal 24 is fitted the first annular lug 21, gasket seal 24 can not be out of shape because of fluid flowing, when the valve is closed, is resetted by spring 4, gasket seal 24 is pushed into ring baffle 32, to be fitted ring baffle 32 by gasket seal 24, namely play the effect of sealing, gasket seal 24 can be prevented again to be out of shape.
Further, the large 0.5cm-2cm of length when the length of described bumping post 25 is compressed to the limit than spring 4.
When the pressure of fluid is excessive, the direction of spool 2 toward the first clamping rings 11 pushes away by fluid, spring 4 is squeezed, and during the large 0.5cm-2cm of Design of length when the length of shelves post 25 is compressed to the limit than spring 4, make spring 4 when not extruded completely, bumping post 25 just first touches the first clamping rings 11, effectively prevent spring 4 to be subject to limit extruding for a long time and cause spring 4 to lose efficacy, irreducible phenomenon occurs.
Further, the center line of described first clamping rings 11 and the center line of the second clamping rings 31 are same straight line.
Effectively prevent spool 2 and the first clamping rings 11 and the second clamping rings 31 from rubbing and occurring that the phenomenon of clamping stagnation occurs.
Further, the diameter of described gasket seal 24 2cm-4cm larger than the diameter of ring baffle 32.
The diameter of gasket seal 24 can not be too small relative to the diameter of ring baffle 32, otherwise, cause the sealing effect of gasket seal 24 undesirable, the diameter of gasket seal 24 can not be excessive relative to the diameter of ring baffle 32, otherwise cause the resistance of gasket seal 24 convection cell excessive, as preferably: the diameter 2cm-4cm larger than the diameter of ring baffle 32 of gasket seal 24.
Further, the reset condition of described spring 4 is Partial shrinkage.
During reset condition, safety check is in closed condition, and gasket seal 24 can push away toward ring baffle 32 by the compression elasticity of spring 4, ring baffle 32 and gasket seal 24 are fitted, namely increase the sealability of safety check, can be again that gasket seal 24 is fixed, prevent gasket seal 24 from damaging because of distortion.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, those skilled in the art carries out common change and replaces should being included in protection domain of the present utility model within the scope of technical solutions of the utility model.
Claims (5)
1. a safety check, comprise valve body and spool, valve body is connected with bonnet, it is characterized in that: in described valve body, be provided with the first clamping rings, the second clamping rings is provided with in described bonnet, first clamping rings and the second clamping rings are sheathed on the two ends of spool respectively, described spool is provided with the first annular lug and the second annular lug, groove is formed between described first annular lug and the second annular lug, described groove is provided with gasket seal, the outer wall of described spool is arranged with spring, the bumping post with spring adaptation is provided with between described spool and spring, described spring is between the first annular lug and the first clamping rings, described bonnet is provided with the ring baffle coordinated with gasket seal, described ring baffle is provided with fillet.
2. a kind of safety check according to claim 1, is characterized in that: the large 0.5cm-2cm of length that the length of described bumping post is extremely prescribed a time limit than spring-compressed.
3. a kind of safety check according to claim 1 and 2, is characterized in that: the center line of described first clamping rings and the center line of the second clamping rings are same straight line.
4. a kind of safety check according to claim 1, is characterized in that: the diameter 2cm-4cm larger than the diameter of ring baffle of described gasket seal.
5. a kind of safety check according to claim 1, is characterized in that: the reset condition of described spring is Partial shrinkage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420860510.1U CN204372243U (en) | 2014-12-30 | 2014-12-30 | A kind of safety check |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420860510.1U CN204372243U (en) | 2014-12-30 | 2014-12-30 | A kind of safety check |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204372243U true CN204372243U (en) | 2015-06-03 |
Family
ID=53328465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420860510.1U Expired - Fee Related CN204372243U (en) | 2014-12-30 | 2014-12-30 | A kind of safety check |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204372243U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276246A (en) * | 2015-11-27 | 2016-01-27 | 江苏华太电力仪表有限公司 | Straight-through type mute stop valve |
| CN105545859A (en) * | 2015-12-22 | 2016-05-04 | 芜湖恒坤汽车部件有限公司 | Oil inlet valve |
| CN106640822A (en) * | 2017-02-22 | 2017-05-10 | 刘雄心 | Hydraulic one-way valve capable of reducing opening pressure |
| CN106931203A (en) * | 2017-04-28 | 2017-07-07 | 维沃移动通信有限公司 | A kind of pressure equalization module and electronic equipment |
-
2014
- 2014-12-30 CN CN201420860510.1U patent/CN204372243U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276246A (en) * | 2015-11-27 | 2016-01-27 | 江苏华太电力仪表有限公司 | Straight-through type mute stop valve |
| CN105545859A (en) * | 2015-12-22 | 2016-05-04 | 芜湖恒坤汽车部件有限公司 | Oil inlet valve |
| CN106640822A (en) * | 2017-02-22 | 2017-05-10 | 刘雄心 | Hydraulic one-way valve capable of reducing opening pressure |
| CN106640822B (en) * | 2017-02-22 | 2018-01-02 | 刘雄心 | A kind of hydraulically-controlled one-way valve that can reduce Opening pressure |
| CN106931203A (en) * | 2017-04-28 | 2017-07-07 | 维沃移动通信有限公司 | A kind of pressure equalization module and electronic equipment |
| CN106931203B (en) * | 2017-04-28 | 2019-01-04 | 维沃移动通信有限公司 | A kind of pressure equalization module and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20201230 |