CN202469086U - Check valve for preventing water meter from rotating automatically - Google Patents
Check valve for preventing water meter from rotating automatically Download PDFInfo
- Publication number
- CN202469086U CN202469086U CN201120578815XU CN201120578815U CN202469086U CN 202469086 U CN202469086 U CN 202469086U CN 201120578815X U CN201120578815X U CN 201120578815XU CN 201120578815 U CN201120578815 U CN 201120578815U CN 202469086 U CN202469086 U CN 202469086U
- Authority
- CN
- China
- Prior art keywords
- valve
- water meter
- rubber gasket
- check valve
- rubber pad
- 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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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model relates to a check valve for preventing a water meter from rotating automatically. The check valve comprises a valve body 1, a valve rod 2, a spring 3, a rubber gasket 4 and a valve plate 5, wherein the spring 3 is sleeved on the valve rod 2; the small end of the valve rod is inserted into a circular hole at the bottom end of the valve body 1, is sleeved with the rubber gasket 4 and is in threaded connection with the valve plate 5; and U-shaped grooves are formed on the rubber gasket 4 and the valve plate 5, so that the U-shaped grooves correspond to a guiding tail of the valve body 1. Therefore, when the check valve operates, the rubber gasket 4 and the valve plate 5 are opened and closed directionally, and the random dislocation of a sealing surface is avoided; by a pressure relief hole 6 in the rubber gasket 4, pressure relief and sealing can be performed in time under the counter pressure of water, so the check valve is good in sealing effect and few in fault, and can prevent autorotation after being installed at a water inlet of the water meter.
Description
Technical field
The utility model relates to a kind of one-way valve of water meter, especially a kind of one-way valve that prevents the water meter rotation.
Background technique
The domestic meter that we use always is provided with an one-way valve to prevent water table rotation (forward or reverse) at water intake usually, and still this one-way valve commonly used is opened easy break-down because sealing effect is bad, can not effectively prevent the water meter rotation.Trace it to its cause: the one, the long-term extrusion-deformation of the seal rubber pad of one-way valve, and sealing surface can rotate dislocation at random and causes seal failure at work, the 2nd, there is not pressure relief vent on the seal rubber pad, be prone to during anti-stream caused due to the seal failure by pressure-off.The water meter rotation had both damaged fair measurement principle, had also destroyed social harmony.
Summary of the invention
In order to overcome above-mentioned phenomenon, the utility model provides a kind of one-way valve that prevents the water meter rotation, and it is fitted in the water meter water intake, when ductwork pressure fluctuates, relies on its effective seal to prevent that water meter from flowing backwards.Reach and prevent water meter rotation effect.
The scheme that its technical problem of the utility model solution is taked is: at a kind of valve body 1 bottom design one guiding tail that prevents the one-way valve of water meter rotation; Valve rod 2 is sleeved in the mounting hole of valve body 1 bottom; Spring 3 suits are arranged therebetween; Valve rod 2 bottoms are equipped with rubber pad 4 and the valve block 5 that is threaded, and it is corresponding with guiding tail on the valve body 1 to have U type groove on rubber pad 4 and the valve block 5, has pressure relief vent 6 on the rubber pad 4.Like this when the utility model water flowing is worked; Rubber pad 4 opens and closes along the guiding tail of valve body 1 is directed with valve block 5; Avoid the rotation at random of rubber pad 4 and valve block 5 and sealed dislocation; Simultaneously during the water reverse flow because the pressure relief vent 6 on the rubber pad 4 can releases, avoided rubber pad 4 by pressure-off, form effectively sealing.Thereby prevented the water meter rotation.
The beneficial effect of the utility model is, on the basis that keeps the original performance of water meter, effectively prevents the water meter rotation, and simple in structure, and cost is low.
Description of drawings
Fig. 1 is the sectional view of the utility model
1. valve bodies among the figure, 2. valve rod, 3. spring, 4. rubber pad, 5. valve block, 6. pressure relief vent.
Fig. 2 is that the A of Fig. 1 is to view
Embodiment
In the drawings, be sleeved on spring 3 on the valve rod 2, insert the small end of valve rod 2 in the circular hole of valve body 1 bottom, cover is loaded onto rubber pad 4 and is threaded with valve block 5, notes having U type groove on rubber pad 4 and the valve block 5, makes the guiding tail of itself and valve body 1 corresponding.Such one-way valve sealing surface at work just can not misplace at random; Can in time unload means of press seals when the pressure relief vent 6 on the rubber pad 4 has satisfied the water back-pressure again in addition, guarantee the utility model good sealing effect, fault is few, and the water intake of the water meter of packing into just can prevent rotation.
Claims (2)
1. an one-way valve that prevents the water meter rotation comprises valve body (1), rubber pad (4), and valve block (5) is characterized in that: there is a guiding tail bottom of valve body (1), all has U type groove on rubber pad (4) and the valve block (5), U type groove and the corresponding assembling of guiding tail.
2. a kind of one-way valve that prevents the water meter rotation according to claim 1 is characterized in that: have pressure relief vent (6) on the rubber pad (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120578815XU CN202469086U (en) | 2011-12-25 | 2011-12-25 | Check valve for preventing water meter from rotating automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120578815XU CN202469086U (en) | 2011-12-25 | 2011-12-25 | Check valve for preventing water meter from rotating automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202469086U true CN202469086U (en) | 2012-10-03 |
Family
ID=46917245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120578815XU Expired - Fee Related CN202469086U (en) | 2011-12-25 | 2011-12-25 | Check valve for preventing water meter from rotating automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202469086U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128513A (en) * | 2020-09-09 | 2020-12-25 | 湖南衡兴环保科技开发有限公司 | Long service life's sack cleaner pulse tube |
-
2011
- 2011-12-25 CN CN201120578815XU patent/CN202469086U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128513A (en) * | 2020-09-09 | 2020-12-25 | 湖南衡兴环保科技开发有限公司 | Long service life's sack cleaner pulse tube |
| CN112128513B (en) * | 2020-09-09 | 2022-05-10 | 湖南衡兴环保科技开发有限公司 | Long service life's sack cleaner pulse tube |
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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: 20121003 Termination date: 20131225 |