CN202972036U - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- CN202972036U CN202972036U CN 201220511048 CN201220511048U CN202972036U CN 202972036 U CN202972036 U CN 202972036U CN 201220511048 CN201220511048 CN 201220511048 CN 201220511048 U CN201220511048 U CN 201220511048U CN 202972036 U CN202972036 U CN 202972036U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- check valve
- rocker
- rod
- 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 check valve which comprises a valve body and a valve plate, wherein a water inlet and a water outlet are respectively formed in two ends of the valve body; a valve rod is rotationally arranged inside the valve body; a rocker is hinged with the valve plate through a hinge pin; a U-shaped installing bracket is arranged at the upper end of the rocker; an installing hole which is matched with the valve rod is formed inside the U-shaped installing bracket; the upper end of the rocker is fixedly connected with the valve rod; a sealing sleeve is arranged between the valve plate and the valve body; a valve cover is arranged at the upper end of the valve body; and a flange pad is arranged between the valve cover and the valve body. By utilizing the check valve, a medium is prevented from flowing reversely, a pump and a driving motor are prevented from reversely turning, and the medium in a container is prevented from being discharged; and the check valve can also be applied to a pipeline which is used for providing replenishment to an auxiliary system in which the pressure can exceed the systematic pressure, so that the working efficiency is improved, and the check valve is convenient to use.
Description
Technical field
The utility model relates to valve field, belongs to more specifically a kind of safety check.
Background technique
The valve that safety check can stop fluid to flow backwards automatically, the flap of safety check is opened under fluid pressure action, and fluid flows to outlet side from suction side.During lower than outlet side, prevent that medium from flowing backwards, preventing pump and drive motor counter-rotating when suction side pressure, and the releasing of vessel media, safety check also can be used for may rising to the auxiliary system of pressing over system to wherein pressure to be provided on the pipeline of supply.Existing technical pattern is simple, and the water hammer performance is bad, and fabricating cost is high, has reduced working efficiency.
The model utility content
The purpose of this utility model is to provide a kind of safety check, reasonable in design, and good stability prevents that medium from flowing backwards, preventing pump and drive motor counter-rotating, and the releasing of vessel media, and has improved working efficiency, it is also convenient to use.
The technical solution of the utility model is as follows:
A kind of safety check, include valve body, valve plate, the two ends of described valve body are respectively equipped with entery and delivery port, rotate in valve body and be provided with valve rod, be hinged with rocking bar by bearing pin on described valve plate, the rocking bar upper end is fixedly connected with valve rod, is provided with stuffing box gland between the water intake of valve plate and valve body, and described valve body upper end is provided with valve gap.
Be provided with flange gasket between described valve gap and valve body.
Described rocking bar upper end is U-shaped scaffold, has the mounting hole that matches with valve rod in U-shaped scaffold.
The utility model can prevent that medium from flowing backwards, preventing pump and drive motor counter-rotating, and the releasing of vessel media, safety check also can be used for may rising to the auxiliary system of pressing over system to wherein pressure to be provided on the pipeline of supply, has improved working efficiency, and it is also convenient to use.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is sectional view of the present utility model.
Embodiment
Referring to accompanying drawing, a kind of safety check, include valve body 1, valve plate 2, the two ends of valve body 1 are respectively equipped with into 3, go out 4 mouths of a river, and the interior rotation of valve body 1 is provided with valve rod 5, be hinged with rocking bar 6 by bearing pin on valve plate 2, rocking bar 6 upper ends are U-shaped scaffold 7, have the mounting hole 8 that matches with valve rod 5 in U-shaped scaffold 7, and rocking bar 6 upper ends are fixedly connected with valve rod 5, be provided with stuffing box gland 9 between the water intake of valve plate 2 and valve body 1, valve body 1 upper end is provided with valve gap 10.Be provided with flange gasket 11 between valve gap 10 and valve body 1.
Claims (3)
1. safety check, include valve body, valve plate, it is characterized in that: the two ends of described valve body are respectively equipped with entery and delivery port, rotate in valve body and be provided with valve rod, be hinged with rocking bar by bearing pin on described valve plate, the rocking bar upper end is fixedly connected with valve rod, is provided with stuffing box gland between the water intake of valve plate and valve body, and described valve body upper end is provided with valve gap.
2. a kind of safety check according to claim 1, is characterized in that: be provided with flange gasket between described valve gap and valve body.
3. a kind of safety check according to claim 1 is characterized in that: described rocking bar upper end is U-shaped scaffold, has the mounting hole that matches with valve rod in U-shaped scaffold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220511048 CN202972036U (en) | 2012-09-29 | 2012-09-29 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220511048 CN202972036U (en) | 2012-09-29 | 2012-09-29 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202972036U true CN202972036U (en) | 2013-06-05 |
Family
ID=48513112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220511048 Expired - Fee Related CN202972036U (en) | 2012-09-29 | 2012-09-29 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202972036U (en) |
-
2012
- 2012-09-29 CN CN 201220511048 patent/CN202972036U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20130929 |