CN203384427U - Check valve with locking function - Google Patents
Check valve with locking function Download PDFInfo
- Publication number
- CN203384427U CN203384427U CN201320486988.8U CN201320486988U CN203384427U CN 203384427 U CN203384427 U CN 203384427U CN 201320486988 U CN201320486988 U CN 201320486988U CN 203384427 U CN203384427 U CN 203384427U
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- base plate
- valve body
- nut
- 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 relates to a check valve with the locking function. The check valve with the locking function is long in service life and comprises a valve body, a valve cover and a rocker arm. The check valve is characterized in that a valve seat is arranged inside the valve body, a valve clack is installed on the valve seat, a cotter pin is arranged on a valve clack nut, the valve clack penetrates through the rocker arm to be connected with the cotter pin of the valve clack nut, the rocker arm and the valve clack are together fixed inside the valve body through a valve rod, middle flange sealing gaskets and the valve cover are arranged inside the valve body, the valve cover is sealed through the sealing gaskets, the middle flange sealing gaskets and the valve cover are locked and fixed together through studs and hexagon nuts, a hanging ring is arranged on the valve cover, a counter weight and a base plate are arranged outside the valve body, the counter weight is connected with the base plate through screws, and the base plate is provided with a locking nut, a locking block and a locking screw.
Description
Technical field
The utility model relates to a kind of safety check, and what be specifically related to is a kind of safety check with lock function.
Background technique
Safety check in the market, do not lock the function of flap, and medium back flow makes the flap quick closing valve, and flap is subject to the thrust of medium to clash into sealing surface of seat, and sealing surface is short working life that is impacted for a long time.
The model utility content
The purpose of this utility model is in order to provide a kind of safety check with lock function of long service life.
For realizing the purpose of this utility model, the utility model adopts following technological scheme: a kind of safety check with lock function, comprise valve body, valve gap, rocking arm, it is characterized in that: in described valve body, be provided with valve seat, on described valve seat, flap is housed, the flap nut is provided with cotter pin, flap is connected with the cotter pin of flap nut through rocking arm, described rocking arm is fixed on valve inner together with flap by valve rod, be provided with middle flange gasket and valve gap in valve body, described valve gap adopts the gasket seal sealing, middle flange gasket is together with adopting stud and hexagon nut is locked with valve gap, valve gap is provided with suspension ring, be provided with weight and base plate in the valve body outside, described weight and base plate are connected by screw, base plate is provided with locking nut, locking block, adjusting screw.
The beneficial effects of the utility model: adopt and be provided with weight and base plate in the valve body outside, described weight and base plate are connected by screw, and base plate is provided with locking nut, locking block, and adjusting screw, realize lock function, extended working life; Be provided with suspension ring on valve gap, convenient lifting transportation.
The accompanying drawing explanation
The internal structure schematic diagram that Fig. 1 is model utility;
The external structure schematic diagram that Fig. 2 is model utility.
1 is valve body, and 2 is valve seat, and 3 is flap, 4 is rocking arm, and 5 is cotter pin, and 6 is the flap nut, 7 is valve rod, and 8 is stud, and 9 is hexagon nut, 10 is middle flange gasket, and 11 is valve gap, and 12 is suspension ring, 13 is screw, and 14 is base plate, and 15 is locking nut, 16 is locking block, and 17 is adjusting screw, and 18 is weight.
Embodiment
Below in conjunction with accompanying drawing, further illustrate:
As Fig. 1, Fig. 2 is described, the utility model comprises valve body, valve gap, rocking arm, it is characterized in that: in described valve body, be provided with valve seat, on described valve seat, flap is housed, the flap nut is provided with cotter pin, flap is connected with the cotter pin of flap nut through rocking arm, described rocking arm is fixed on valve inner together with flap by valve rod, be provided with middle flange gasket and valve gap in valve body, described valve gap adopts the gasket seal sealing, middle flange gasket is together with adopting stud and hexagon nut is locked with valve gap, valve gap is provided with suspension ring, be provided with weight and base plate in the valve body outside, described weight and base plate are connected by screw, base plate is provided with locking nut, locking block, adjusting screw.
During work: this valve is automatic operation normally, and in direction, under mobile pressure medium effect, flap is opened; When fluid flows in the other direction, by the Gravitative Loads of hydrodynamic pressure and flap in valve body sealing surface, thereby cut off media flow.
The purpose of this utility model, feature and advantage, in connection with embodiment, are further described with reference to accompanying drawing.To contribute to understand the utility model by embodiment, but not limit content of the present utility model.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model, all should think protection domain of the present utility model.
Claims (1)
1. a safety check with lock function, comprise valve body, valve gap, rocking arm, it is characterized in that: in described valve body, be provided with valve seat, on described valve seat, flap is housed, the flap nut is provided with cotter pin, flap is connected with the cotter pin of flap nut through rocking arm, described rocking arm is fixed on valve inner together with flap by valve rod, be provided with middle flange gasket and valve gap in valve body, described valve gap adopts the gasket seal sealing, middle flange gasket is together with adopting stud and hexagon nut is locked with valve gap, valve gap is provided with suspension ring, be provided with weight and base plate in the valve body outside, described weight and base plate are connected by screw, base plate is provided with locking nut, locking block, adjusting screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486988.8U CN203384427U (en) | 2013-08-09 | 2013-08-09 | Check valve with locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486988.8U CN203384427U (en) | 2013-08-09 | 2013-08-09 | Check valve with locking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203384427U true CN203384427U (en) | 2014-01-08 |
Family
ID=49872919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320486988.8U Expired - Fee Related CN203384427U (en) | 2013-08-09 | 2013-08-09 | Check valve with locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203384427U (en) |
-
2013
- 2013-08-09 CN CN201320486988.8U patent/CN203384427U/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: 20140108 Termination date: 20150809 |
|
| EXPY | Termination of patent right or utility model |