CN2900954Y - Piston type liquid control butterfly valve - Google Patents
Piston type liquid control butterfly valve Download PDFInfo
- Publication number
- CN2900954Y CN2900954Y CN 200620051093 CN200620051093U CN2900954Y CN 2900954 Y CN2900954 Y CN 2900954Y CN 200620051093 CN200620051093 CN 200620051093 CN 200620051093 U CN200620051093 U CN 200620051093U CN 2900954 Y CN2900954 Y CN 2900954Y
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- CN
- China
- Prior art keywords
- valve
- valve body
- piston
- slide block
- valve plate
- 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 piston and pilot-controlled type butterfly valve, comprising a valve body (5), a large valve board (7) and a small valve board (14), wherein one end of a slide block (12) is hinged on the large valve board (7) by a pin bearing (8) and a spring (11), the other end is provided with the small valve board (14), a piston cylinder (1) and a piston (2) are provided on the top of the valve body (5), a piston rod (6) correspondingly top contacted with a slide block (12) is provided on the piston (2), an inlet by-pass conduit (4) interconnected with a valve body inlet (10) of valve body (5) is provided on the lower chamber of the piston cylinder (1), an outlet by-pass conduit (4) interconnected with the valve body oulet (10) of the valve body (5) is provided on the upper chamber of piston cylinder (1), a valve-spindle (9) between the valve body (5) and the large valve board (7) is arranged on the valve body (5) central shaft. The piston and pilot-controlled type butterfly valve utility model has the advantage of a fewer accommodation area, a convenient maintaining and debugging, a rapid close, a simple structure, a low cost and a firm property.
Description
Technical field
The utility model relates to a kind of hydraulic butterfly valve, particularly relates to a kind of butterfly valve that adopts the control of piston type fluid power.
Background technique
A kind of hydraulic butterfly valve is arranged at present, its structure is to be hinged with a big valve plate by valve shaft in valve body, on big valve plate, be provided with a discharge orifice and corresponding with it little valve plate, in valve body, be provided with the horizontal controlling rod that is connected with little valve plate, the control cylinder that is communicated with horizontal controlling rod is located at the sidewall of valve body, piston cavity one end of control cylinder is communicated with the entrance point of valve body, the other end is communicated with the outlet end of valve body, utilize the pressure reduction of valve body entrance point and outlet end to control the quick closing valve that large and small valve plate comes and close slowly, to realize pass valve water hammer and the check function after the elimination termination of pumping.Because control cylinder is positioned at the sidewall of valve, the width of valve is relatively large, the one, and need account for when installing and using and stay side significantly in the trench the inside, must increase the width of valve trench of living in, the 2nd, the maintenance of control cylinder and inconvenient debugging.
The model utility content
Technical problem to be solved in the utility model provides the less and maintenance and debugging piston type hydraulic control easily butterfly valve of a kind of occupation of land.
In order to solve the problems of the technologies described above, the piston type hydraulic control butterfly valve that the utility model provides, comprise valve body, big valve plate and little valve plate, slide block one end is contained on the described big valve plate by bearing pin and spring hinge, described little valve plate is located at the described slide block the other end, be provided with piston cylinder and piston thereof at described valve body top, on described piston, be provided with piston rod with the corresponding apical grafting of described slide block, described piston cylinder cavity of resorption is provided with the import bypass tube that is communicated with the valve body entrance point of described valve body, and epicoele is provided with the outlet bypass tube that is communicated with the valve outlet end of described valve body.
As improvement of the present utility model, the valve shaft that described big valve plate is connected with described valve body is in the top of the longitudinal center line of described valve body.
Adopt the piston type hydraulic control butterfly valve of technique scheme, because piston cylinder is positioned at the top of valve body, the width of valve reduces relatively, is convenient to install and use in the trench the inside, needn't increase the width of valve place trench first, second, makes things convenient for the debugging of the maintenance of piston cylinder; The valve shaft that big valve plate is connected with valve body is in the top of the longitudinal center line of valve body, and big valve plate offset is bigger, closes rapider.
In sum, the utility model is that a kind of to take up an area of less, maintenance and debugging convenient and close piston type hydraulic control butterfly valve rapider, simple in structure, with low cost, reliable performance.
Description of drawings
Accompanying drawing is the utility model structural representation.
Embodiment
Referring to accompanying drawing, big valve plate 7 is installed on the valve body 5 by valve shaft 9 and valve shaft 9 is in the top of the longitudinal center line of valve body 5, on big valve plate 7, be provided with discharge orifice 13, slide block 12 1 ends are contained on the big valve plate 7 by bearing pin 8 and spring 11 hinges, the little valve plate 14 corresponding with discharge orifice 13 is located at slide block 12 the other ends, be provided with piston cavity 1 and piston 2 thereof at valve body 5 tops, on piston 2, be provided with piston rod 6 with slide block 12 corresponding apical graftings, piston cavity 1 cavity of resorption is provided with the import bypass tube 4 that is communicated with the valve body entrance point 10 of valve body 5, and epicoele is provided with the outlet bypass tube 3 that is communicated with the valve outlet end 15 of valve body 5.
Referring to accompanying drawing, opening the valve process is: work as starting mode of pump, valve body entrance point 10 water flow pressure raise and during greater than valve outlet end 15 pressure gradually, part current enter the cavity of resorption of piston cylinder 1 along import bypass tube 4, promote piston 2 and drive piston rod 6 slowly up, releasing is to the pressure of slide block 12, little valve plate 14, big valve plate 7, simultaneously, the current of piston cylinder 1 epicoele entered valve outlet end 15 by outlet bypass tube 3; At this moment, little valve plate 14 follows the rotation of piston rod 6 clockwise directions closely under the effect of spring 11; Big valve plate 7 follows little valve plate 14 closely and rotates around valve shaft 9 clockwise directions under the promotion of current, and valve is slowly opened.
Referring to accompanying drawing, pass valve process is: during termination of pumping, water velocity plunges in the valve, and the gravitational moment that big valve plate 7 utilizes eccentric structure to produce is closed rapidly, and most current in the block valve have only discharge orifice 13 that a small amount of backflow is arranged; At this moment, because valve outlet end 15 pressure are greater than valve body entrance point 10 pressure, valve outlet end 15 current promote piston 2 and drive piston rod 6 slowly descending along exporting the epicoele that bypass tube 3 enters piston cylinder 1, compressing slide block 12, little valve plate 14 counterclockwise rotate around bearing pin 9, slowly close; Simultaneously, the current with piston cylinder 1 cavity of resorption enter valve body entrance point 10 by import bypass tube 4.
Claims (2)
1, a kind of piston type hydraulic control butterfly valve, comprise valve body (5), big valve plate (7) and little valve plate (14), it is characterized in that: slide block (12) one ends are contained on the described big valve plate (7) by bearing pin (8) and spring (11) hinge, described little valve plate (14) is located at described slide block (12) the other end, be provided with piston cylinder (1) and piston (2) thereof at described valve body (5) top, on described piston (2), be provided with piston rod (6) with the corresponding apical grafting of described slide block (12), described piston cylinder (1) cavity of resorption is provided with the import bypass tube (4) that is communicated with the valve body entrance point (10) of described valve body (5), and epicoele is provided with the outlet bypass tube (3) that is communicated with the valve outlet end (15) of described valve body (5).
2, a kind of piston type hydraulic control butterfly valve according to claim 1, it is characterized in that: the valve shaft (9) that described big valve plate (7) is connected with described valve body (5) is in the top of the longitudinal center line of described valve body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620051093 CN2900954Y (en) | 2006-05-24 | 2006-05-24 | Piston type liquid control butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620051093 CN2900954Y (en) | 2006-05-24 | 2006-05-24 | Piston type liquid control butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2900954Y true CN2900954Y (en) | 2007-05-16 |
Family
ID=38085117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620051093 Expired - Fee Related CN2900954Y (en) | 2006-05-24 | 2006-05-24 | Piston type liquid control butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2900954Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736716A (en) * | 2016-04-20 | 2016-07-06 | 邵建农 | Involute butterfly type water pump control valve |
| CN110645376A (en) * | 2019-10-10 | 2020-01-03 | 徐辉 | Intelligent butterfly valve |
| CN113324052A (en) * | 2021-07-01 | 2021-08-31 | 永嘉企达知识产权咨询有限公司 | Industrial butterfly valve |
| CN114233478A (en) * | 2021-11-24 | 2022-03-25 | 河南航天液压气动技术有限公司 | Large-drift-diameter oil passing valve |
-
2006
- 2006-05-24 CN CN 200620051093 patent/CN2900954Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736716A (en) * | 2016-04-20 | 2016-07-06 | 邵建农 | Involute butterfly type water pump control valve |
| CN110645376A (en) * | 2019-10-10 | 2020-01-03 | 徐辉 | Intelligent butterfly valve |
| CN110645376B (en) * | 2019-10-10 | 2020-12-22 | 呼阀科技控股股份有限公司 | Intelligent butterfly valve |
| CN113324052A (en) * | 2021-07-01 | 2021-08-31 | 永嘉企达知识产权咨询有限公司 | Industrial butterfly valve |
| CN113324052B (en) * | 2021-07-01 | 2023-03-10 | 浙江冠正阀门股份有限公司 | Industrial butterfly valve |
| CN114233478A (en) * | 2021-11-24 | 2022-03-25 | 河南航天液压气动技术有限公司 | Large-drift-diameter oil passing valve |
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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: 20070516 Termination date: 20150524 |
|
| EXPY | Termination of patent right or utility model |