CN201246501Y - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- CN201246501Y CN201246501Y CNU2008201272893U CN200820127289U CN201246501Y CN 201246501 Y CN201246501 Y CN 201246501Y CN U2008201272893 U CNU2008201272893 U CN U2008201272893U CN 200820127289 U CN200820127289 U CN 200820127289U CN 201246501 Y CN201246501 Y CN 201246501Y
- Authority
- CN
- China
- Prior art keywords
- valve
- shaft gear
- check valve
- baffle plate
- gear
- 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
Images
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- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model discloses a check valve, which comprises a valve body and a baffle plate. The check valve is characterized in that the valve body is internally equipped with an electric motor, the electric motor is connected with a movable gear, a rotating shaft gear is mounted on the baffle plate, the movable gear is meshed with the rotating shaft gear, and a torsion spring is embedded in the rotating shaft gear. The check valve has simple design, is safe and reliable, and is efficient in valve opening and closing actions. The check valve overcomes the shortages that the valve can not be opened or is untightly closed.
Description
Technical field
The utility model relates to a kind of valve, particularly a kind of safety check.
Prior art
Safety check is a kind of valve commonly used, existing safety check relies on the impact of fluid to open valve more, by throttle downs such as natural gravities, this just causes when rate of flow of fluid, and valve can not be opened when not enough or fluid flow was little, the problem that valve was not closed completely again when excessive or fluid flow was excessive when rate of flow of fluid.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of simple and reliable safety check of action that seals.
The technical solution of the utility model is: a kind of safety check, and it includes valve body, baffle plate, wherein in described valve body motor is installed, motor connects a moving gear, and a shaft gear is housed on described baffle plate, moving gear and shaft gear engagement are embedded with a torsion spring at shaft gear.
Provide power by motor during the utility model work, connect motor power, motor is started working, and drives moving gear and rotates, and drives shaft gear by moving gear, makes flap rotation an angle of 90 degrees, and air-flow is unimpeded.Behind the powered-down, motor is not worked, and the torsion spring in the shaft gear makes flap recover closed state.
The utility model simplicity of design, safe and reliable, the switching valve event is neat and tidy.Not having can not Open valve or the not tight shortcoming of valve closing.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 opens schematic representation for baffle plate of the present utility model.
Among the figure: symbol 1 is represented motor, and symbol 2 is represented moving gear, and symbol 3 is represented shaft gear, and symbol 4 is represented baffle plate.
Embodiment
Below in conjunction with drawings and Examples the utility model is described further.
As Fig. 1, Fig. 2, a kind of safety check of the present utility model, it includes valve body, baffle plate 4, motor 1 wherein is installed in described valve body, and motor 1 connects a moving gear 2, and a shaft gear 3 is housed on described baffle plate 4, moving gear 2 and shaft gear 3 engagements are embedded with a torsion spring at described shaft gear 3.
Claims (1)
1, a kind of safety check, it includes valve body, baffle plate, it is characterized in that: in described valve body motor is installed, motor connects a moving gear, and a shaft gear is housed on described baffle plate, moving gear and shaft gear engagement are embedded with a torsion spring at described shaft gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201272893U CN201246501Y (en) | 2008-07-08 | 2008-07-08 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201272893U CN201246501Y (en) | 2008-07-08 | 2008-07-08 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201246501Y true CN201246501Y (en) | 2009-05-27 |
Family
ID=40730323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201272893U Expired - Fee Related CN201246501Y (en) | 2008-07-08 | 2008-07-08 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201246501Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084266A (en) * | 2017-05-16 | 2017-08-22 | 周满弟 | Exhaust smoke check valve |
| CN112728172A (en) * | 2020-12-31 | 2021-04-30 | 青海中控太阳能发电有限公司 | High-temperature fluid is with can ending check valve and valve clack processing equipment thereof |
-
2008
- 2008-07-08 CN CNU2008201272893U patent/CN201246501Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084266A (en) * | 2017-05-16 | 2017-08-22 | 周满弟 | Exhaust smoke check valve |
| CN112728172A (en) * | 2020-12-31 | 2021-04-30 | 青海中控太阳能发电有限公司 | High-temperature fluid is with can ending check valve and valve clack processing equipment thereof |
| CN112728172B (en) * | 2020-12-31 | 2023-01-10 | 青海中控太阳能发电有限公司 | High-temperature fluid is with can ending check valve and valve clack processing equipment thereof |
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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: 20090527 Termination date: 20100708 |