CN201326601Y - Slow-closure device for large energy-saving pumping station flap valve - Google Patents
Slow-closure device for large energy-saving pumping station flap valve Download PDFInfo
- Publication number
- CN201326601Y CN201326601Y CNU2008202109579U CN200820210957U CN201326601Y CN 201326601 Y CN201326601 Y CN 201326601Y CN U2008202109579 U CNU2008202109579 U CN U2008202109579U CN 200820210957 U CN200820210957 U CN 200820210957U CN 201326601 Y CN201326601 Y CN 201326601Y
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- CN
- China
- Prior art keywords
- piston
- flange
- flap valve
- pumping station
- slow
- 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 slow-closure device for a large energy-saving pumping station flap valve, which is characterized in that an oil hole is arranged on a device head; a piston is arranged in front of the device head; the surface of the piston on the length direction is provided with four rat-tail notches the width of which changes from wide to narrow and the depth of which changes from deep to shallow; a cylinder is arranged on the excircle of the piston; the middle part of the cylinder is provided with an oil hole; the front of the piston is provided with a piston rod; and a flange is arranged in front of the cylinder, and the flange is provided with a throttling device, and the end of the flange is provided with an oil hole. The utility model has the key technology that the flange is provided with the throttling device; the surface of the piston on the length direction is provided with the four rat-tail notches the width of which changes from wide to narrow and the depth of which changes from deep to shallow; and the outflow of the pressure oil in the front cavity of the cylinder is controlled, thus realizing the automatic stepless deceleration of the piston under the external traction, and achieving the purpose of the slow-closure of the large pumping station flap valve.
Description
Technical field
The utility model discloses a kind of energy-saving large pumping station flap valve Slow Close device.
Background technique
At present, the large-scale flap valve in the irrigation and drainage pumping station generally adopts hydraulic hoist to control the Slow Close speed of flap valve both at home and abroad, and there is complex structure in this hoist, the manufacture cost height, and the electric power energy loss is big, defectives such as Slow Close control weak effect.Up to the present, also do not seeing a kind of simple and reliable for structurely on the market as yet, stable work in work need not manually-operated energy-saving large pumping station flap valve Slow Close device.
Summary of the invention
The purpose of this utility model provides a kind of simple and reliable for structure, and stable work in work need not manually-operated energy-saving large pumping station flap valve Slow Close device.
The technical solution of the utility model is as follows: a kind of energy-saving large pumping station flap valve Slow Close device comprises device head, turnover oilhole, piston, mouse stern notch, cylinder barrel, turnover oilhole, piston rod, flange, throttling arrangement and turnover oilhole etc.Wherein, on the device head, be provided with the turnover oilhole, be provided with piston in device head front, on the total length surface of piston, be provided with 4 by wide to narrow, by being deep to shallow mouse stern notch, be provided with cylinder barrel at outside piston, be provided with the turnover oilhole at cylinder barrel middle part, be provided with piston rod in the piston front, front at cylinder barrel is provided with flange, is provided with throttling arrangement on flange, is provided with the turnover oilhole in the flange end.
Key technology of the present utility model is: be provided with throttling arrangement on flange; On the total length surface of piston, be provided with 4 by wide to narrow, by being deep to shallow mouse stern notch, the outflow of control cylinder barrel ante-chamber pressure oil forms the externally stepless voluntarily deceleration under the tractive force effect of piston and piston rod, reaches the purpose of large pumping station flap valve Slow Close.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
As shown in the figure, a kind of energy-saving large pumping station flap valve slow closing device comprises device head 1, turnover oilhole 2, piston 3, mouse stern notch 4, cylinder barrel 5, turnover oilhole 6, piston rod 7, flange 8, throttling arrangement 9 and turnover oilhole 10 etc.Wherein, be provided with turnover oilhole 2 on device head 1 top, be provided with piston 3 in device head 1 front, be provided with mouse stern notch 4 on piston 3 surfaces, be provided with cylinder barrel 5, be provided with turnover oilhole 6 at the middle part of cylinder barrel 5 at the cylindrical of piston 3, be provided with piston rod 7 in piston 4 fronts, be provided with flange 8 in cylinder barrel 5 fronts, on flange 8, be provided with throttling arrangement 9, be provided with turnover oilhole 10 in flange 8 ends.
Key technology of the present utility model is: be provided with throttling arrangement 9 on flange 8; On the total length surface of piston 3, be provided with 4 by wide to narrow, by being deep to shallow mouse stern notch 4, the outflow of control cylinder barrel 5 ante-chamber pressure oils forms the externally stepless voluntarily deceleration under the tractive force effect of piston 3 and piston rod 7, reaches the purpose of large pumping station flap valve Slow Close.
Claims (1)
1, a kind of energy-saving large pumping station flap valve Slow Close device, comprise device head (1), turnover oilhole (2), piston (3), mouse stern notch (4), cylinder barrel (5), turnover oilhole (6), piston rod (7), flange (8), throttling arrangement (9) and turnover oilhole (10), it is characterized in that: on device head (1), be provided with turnover oilhole (2), be provided with piston (3) in device head (1) front, on the total length surface of piston (3), be provided with 4 by wide extremely narrow, by being deep to shallow mouse stern notch (4), cylindrical at piston (3) is provided with cylinder barrel (5), be provided with turnover oilhole (6) at the middle part of cylinder barrel (5), be provided with piston rod (7) in the front of piston (3), be provided with flange (8) in the front of cylinder barrel (5), on flange (8), be provided with throttling arrangement (9), be provided with turnover oilhole (10) in flange (8) end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202109579U CN201326601Y (en) | 2008-12-16 | 2008-12-16 | Slow-closure device for large energy-saving pumping station flap valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202109579U CN201326601Y (en) | 2008-12-16 | 2008-12-16 | Slow-closure device for large energy-saving pumping station flap valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201326601Y true CN201326601Y (en) | 2009-10-14 |
Family
ID=41178574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202109579U Expired - Fee Related CN201326601Y (en) | 2008-12-16 | 2008-12-16 | Slow-closure device for large energy-saving pumping station flap valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201326601Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486526A (en) * | 2019-09-23 | 2019-11-22 | 湖南力威液压设备股份有限公司 | A kind of energy-saving free side-turning type flap valve buffer |
-
2008
- 2008-12-16 CN CNU2008202109579U patent/CN201326601Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486526A (en) * | 2019-09-23 | 2019-11-22 | 湖南力威液压设备股份有限公司 | A kind of energy-saving free side-turning type flap valve buffer |
| CN110486526B (en) * | 2019-09-23 | 2024-03-08 | 湖南力威液压设备股份有限公司 | Energy-saving free side-turning flap valve buffer |
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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: 20091014 Termination date: 20101216 |