CN204299854U - A kind of modified check valve for pump - Google Patents
A kind of modified check valve for pump Download PDFInfo
- Publication number
- CN204299854U CN204299854U CN201420743047.2U CN201420743047U CN204299854U CN 204299854 U CN204299854 U CN 204299854U CN 201420743047 U CN201420743047 U CN 201420743047U CN 204299854 U CN204299854 U CN 204299854U
- Authority
- CN
- China
- Prior art keywords
- valve
- pump
- valve rod
- check valve
- holder
- 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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- Check Valves (AREA)
Abstract
The utility model discloses a kind of modified check valve for pump, comprise valve rod, valve holder, described valve rod is connected with valve holder.The utility model solves prior art Problems existing, valve moves up and down and carries out the conversion of turnover air pressure, external pressure and sealing location contacts, improve the power of unidirectional valve rod press-in valve holder, when pump is used, airtight performance promotes, and elevator pump operational sound stationarity, for achieving the above object, by unidirectional valve rod being designed to increase pressure when reinforcement raising check valve coordinates with valve holder in non-return valve operational cambered surface, improving sealing property and reducing pump work noise.
Description
Technical field
The utility model relates to the technical field of pump seal performance, especially a kind of modified check valve for pump.
Background technology
The check valve shape of current pump seal mostly is increase reinforcement salient point on the arc of rule or the arc of rule and arranges in pairs or groups with valve holder, pushes down unidirectional valve face, the close gas weak effect when ambient pressure is low by ambient pressure.Reinforced grid design in one-way valve structures, check valve changes sound frequency when up and down, noise during reduction pump work.
Utility model content
For the problems referred to above, the utility model aims to provide a kind of modified check valve for pump.
For realizing this technical purpose, scheme of the present utility model is: a kind of modified check valve for pump, comprises valve rod, valve base is fixed, and described valve rod is connected with valve holder.
As preferably, described valve rod and valve base are fixedly connected with the arcwall face on top and adopt locality to contact with the valve rod face below valve rod.
As preferably, described valve rod is fixedly connected with valve base.
The utility model solves prior art Problems existing, and improve the power of unidirectional valve rod press-in valve holder, when pump is used, airtight performance promotes, elevator pump operational sound stationarity.For achieving the above object, by unidirectional valve rod being designed to increase pressure when reinforcement raising check valve coordinates with valve holder in non-return valve operational cambered surface, improving sealing property and reducing pump work noise.Significantly promote check valve fitted seal effect, and easy to process.Check valve adopts reinforced grid design, when coordinating with unidirectional valve rod, valve face arc about 1/3 ~ 1/2 meeting and valve rod plane contact, can fit with check valve plane without muscle place rubber face and extend, the reagency that the thick umbrella shape of reinforcement becomes will increase, and under equal conditions fall lift-off seal effect.And when the external world has pressure to push down valve rod, under equal conditions rubber deformation is large, more sealing effectiveness can be strengthened.
Accompanying drawing explanation
Fig. 1 is overall structure figure of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing basis and specific embodiment, the utility model is described in further details.
As shown in Figure 1, a kind of modified check valve for pump of the utility model embodiment, comprise valve rod 1, valve holder 2, described valve rod is connected with valve holder.
As preferably, the arcwall face on described valve holder 2 top adopts locality to contact with the valve rod face below valve rod 1.
As preferably, described valve rod 2 is fixedly connected with valve base.
The utility model solves prior art Problems existing, and valve moves up and down and carries out the conversion of turnover air pressure, and external pressure and sealing location contacts, improve the power of unidirectional valve rod press-in valve holder, when pump is used, airtight performance promotes, elevator pump operational sound stationarity.For achieving the above object, by unidirectional valve rod being designed to increase pressure when reinforcement raising check valve coordinates with valve holder in non-return valve operational cambered surface, improving sealing property and reducing pump work noise.Significantly promote check valve fitted seal effect, and easy to process.Check valve adopts reinforced grid design, when coordinating with unidirectional valve rod, valve face arc about 1/3 ~ 1/2 meeting and valve rod plane contact, can fit with check valve plane without muscle place rubber face and extend, the reagency that the thick umbrella shape of reinforcement becomes will increase, and under equal conditions fall lift-off seal effect.And when the external world has pressure to push down valve rod, under equal conditions rubber deformation is large, more sealing effectiveness can be strengthened.
Check valve cambered surface has reinforcement, and when when check valve is moved up and down, rubber frequency difference makes pump work, noise reduces.
The above; be only preferred embodiment of the present utility model; not in order to limit the utility model, every above embodiment is done according to technical spirit of the present utility model any trickle amendment, equivalently replace and improve, within the protection domain that all should be included in technical solutions of the utility model.
Claims (3)
1., for a modified check valve for pump, comprise valve rod, valve holder, it is characterized in that: described valve rod is connected with valve holder.
2. a kind of modified check valve for pump according to claim 1, is characterized in that: the arcwall face on described valve holder adopts locality to contact with the valve rod face below valve rod.
3. a kind of modified check valve for pump according to claim 1, is characterized in that: described valve rod is fixedly connected with valve base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420743047.2U CN204299854U (en) | 2014-12-01 | 2014-12-01 | A kind of modified check valve for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420743047.2U CN204299854U (en) | 2014-12-01 | 2014-12-01 | A kind of modified check valve for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204299854U true CN204299854U (en) | 2015-04-29 |
Family
ID=53105399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420743047.2U Expired - Fee Related CN204299854U (en) | 2014-12-01 | 2014-12-01 | A kind of modified check valve for pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204299854U (en) |
-
2014
- 2014-12-01 CN CN201420743047.2U patent/CN204299854U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20150429 Termination date: 20201201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |