CN2878835Y - Dual-eccentric slow-closure type stop valve - Google Patents
Dual-eccentric slow-closure type stop valve Download PDFInfo
- Publication number
- CN2878835Y CN2878835Y CN 200620031626 CN200620031626U CN2878835Y CN 2878835 Y CN2878835 Y CN 2878835Y CN 200620031626 CN200620031626 CN 200620031626 CN 200620031626 U CN200620031626 U CN 200620031626U CN 2878835 Y CN2878835 Y CN 2878835Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- guard
- valve plate
- open
- 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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Abstract
The utility model discloses a double eccentric slow shut check valve, comprising a valve body, a valve spindle equipped on the valve body, a valve guard fixed on the valve spindle with a pin and an operation mechanism which can control open and close process the valve guard. The utility model is characterized in that one end of the valve spindle is extruded out the valve body, its end is fixed and connected to the connection rod with heavy hammer; Center line of the valve spindle is higher than horizontal diameter of the valve guard, which deviates from the center position of the valve body at the same time; One piston is horizontally equipped on the valve body at the bottom of the valve plate, the piston cavity is connected to a pressure source through piping. When valve guard of the valve in double eccentric structure is open, open force is reduced, which is good for open of the valve plate; which would be good for fast closing during closing because of potential energy of heavy hammer; When the valve guard is to reach the close position, the valve guard would be blocked by the piston rod and be closed slowly, which would eliminate water hammer phenomenon occurred during fast closing of the valve guard.
Description
Technical field
The utility model relates to a kind of valve, especially relates to a kind of two eccentric buffer valve.
Background technique
The valve shaft operated by rotary motion of valve now commonly used is in the horizontal central position of valve plate, moment used during keying is all bigger, cause keying all inconvenient, simultaneously in the process of valve plate quick closedown, also can form water hammer, cause destruction, influenced the normal use of valve pipeline, the pump housing and valve.
The model utility content
The purpose of this utility model is to provide a kind of two eccentric buffer valve that opens and closes easily, can effectively eliminate water hammer.
For achieving the above object, the utility model can be taked following technical proposals:
Two eccentric buffer valve described in the utility model, the operating mechanism that it comprises valve body, is arranged on the valve shaft in the valve body and is fixed on the valve plate on the valve shaft and controls described valve plate keying by pivot pin, it is characterized in that: an end of described valve shaft extends outside the described valve body, and its end is fixed with the connecting rod that has weight; The center line of described valve shaft is higher than the central position that the horizontal diameter of valve plate simultaneously departs from described valve body again; Be horizontally disposed with a piston at the valve body that is positioned at the valve plate bottom, described piston cavity is connected with pressure source by pipeline.
Periphery at described valve plate is inlaid with Sealing.Described Sealing is rubber seal or stainless steel seal ring.
Advantage of the present utility model is the valve of the two eccentric structures of this employing when operating mechanism is handled the valve plate unlatching, and valve plate itself has the trend of unlatching under the natural momentum effect that current form, can reduce opening force like this, is beneficial to opening of valve plate; When closing, because the potential energy effect of weight helps the quick-make of valve plate again; Simultaneously when valve plate is opened, stretch out forward under the effect of piston rod pressure source in pipeline, and when the valve plate quick closedown is about to reach operating position (generally when reaching 70 ° of closed position), valve plate can run into the prevention of piston rod, slowly closed, effectively eliminated the water hammer that valve plate occurs when quick-make; Can also control the closing velocity of valve plate by adjusting in actual applications to pressure in the pressure source.For guaranteeing that valve plate does not have leakage after closure, can inlay Sealing at the periphery of valve plate, use in different medium for adapting to valve, Sealing may be selected to be rubber seal or stainless steel seal ring.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 cuts open figure for the left side office of looking of Fig. 1.
Fig. 3 is an External view of the present utility model.
Embodiment
As shown in the figure, two eccentric buffer valve described in the utility model, the operating mechanism that it comprises valve body 1, is arranged on the valve shaft 2 in the valve body 1 and is fixed on the valve plate 4 on the valve shaft 2 and controls described valve plate 4 keyings by pivot pin 3, one end of described valve shaft 2 extends outside the described valve body 1, and its end is fixed with the connecting rod 6 that has weight 5; The center line of described valve shaft 2 is higher than the central position that the horizontal diameter of valve plate 4 simultaneously departs from described valve body 1 again; Be horizontally disposed with a piston 7 at the valve body 1 that is positioned at valve plate 4 bottoms, described piston cavity is connected with pressure source by pipeline 8.Periphery at described valve plate 4 is inlaid with rubber seal or stainless steel seal ring.
Claims (3)
1, a kind of two eccentric buffer valve, the operating mechanism that it comprises valve body (1), is arranged on the valve shaft (2) in the valve body (1) and is fixed on the valve plate (4) on the valve shaft (2) and controls described valve plate (4) keying by pivot pin (3), it is characterized in that: an end of described valve shaft (2) extends outside the described valve body (1), and its end is fixed with the connecting rod (6) that has weight (5); The horizontal diameter that the center line of described valve shaft (2) is higher than valve plate (4) departs from simultaneously the central position of described valve body (1) again; Be horizontally disposed with a piston (7) at the valve body (1) that is positioned at valve plate (4) bottom, described piston cavity is connected with pressure source by pipeline (8).
2, safety check according to claim 1 is characterized in that: the periphery at described valve plate (4) is inlaid with Sealing.
3, safety check according to claim 2 is characterized in that: described Sealing is rubber seal or stainless steel seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620031626 CN2878835Y (en) | 2006-04-19 | 2006-04-19 | Dual-eccentric slow-closure type stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620031626 CN2878835Y (en) | 2006-04-19 | 2006-04-19 | Dual-eccentric slow-closure type stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2878835Y true CN2878835Y (en) | 2007-03-14 |
Family
ID=37861250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620031626 Expired - Fee Related CN2878835Y (en) | 2006-04-19 | 2006-04-19 | Dual-eccentric slow-closure type stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2878835Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268520A (en) * | 2018-12-03 | 2019-01-25 | 安徽荣达阀门有限公司 | A kind of overturning closed type gate valve flow control mechanism |
-
2006
- 2006-04-19 CN CN 200620031626 patent/CN2878835Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268520A (en) * | 2018-12-03 | 2019-01-25 | 安徽荣达阀门有限公司 | A kind of overturning closed type gate valve flow control mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |