CN2229014Y - Straight butterfly valve - Google Patents
Straight butterfly valve Download PDFInfo
- Publication number
- CN2229014Y CN2229014Y CN 95219810 CN95219810U CN2229014Y CN 2229014 Y CN2229014 Y CN 2229014Y CN 95219810 CN95219810 CN 95219810 CN 95219810 U CN95219810 U CN 95219810U CN 2229014 Y CN2229014 Y CN 2229014Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- handle
- rubber
- 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 relates to a butt-clamping butterfly valve, which mainly comprises a valve body 1, a valve plate 2 in the valve body 1, a valve handle 3 whose upper portion extending out from the valve body 1 and fixed together with the valve plate 2, a rubber sealing ring 4 fixed in the valve body 1, an annular rubber tyre 5 sheathed on the upper portion of the valve body 1, a sliding block 6, a handle 7 and a guiding pipe 9 connected with the rubber tyre 5 and the rubber sealing ring 4. The utility model is characterized in that when the valve plate 2 is closed, a screw handle presses the rubber tyre 5 to introduce the pressure into the rubber sealing ring 4 to form sealing. Before the valve plate 2 is opened, the pressure is firstly removed and the sealing is released to provide no friction between the valve plate 2 and the rubber sealing ring 4. The valve has simple structure, tight closing and reliable performance.
Description
The utility model relates to a kind of valve, specifically a kind of kinetic pressure sealing wafer type butterfly valve.
Existing wafer type butterfly valve is made of valve body, valve plate, valve rod, solid rubber seal ring and drive unit etc.When closing butterfly valve, by valve plate the extruding of rubber seal is formed sealing, rubber seal constitutes bigger resistance to valve plate.During opened butterfly valve, then need to overcome the bigger resistance of rubber seal.The butterfly valve diameter is big more, and pressure medium is high more, when closing or opening, rubber seal is big more to the resistance of valve plate, the torque that produces on the valve rod is also big more, and valve rod is just thick more, and needs worm and gear transmission, the transmission of worm and gear secondary, electronic, Hydraulic actuator to open and close butterfly valve.So not only make the structure bulky complex of butterfly valve, and the reliable power supply of Electric actuator needs, Hydraulic actuator exists leakage problem.
The purpose of this utility model provides a kind of manual opening-closing, reliable sealing wafer type butterfly valve.
The utility model is achieved in that it is mainly stretched out valve body 1 and the valve rod 3 that is fixed together with valve plate 2, is fastened on the rubber seal 4 in the valve body 1, the handle 7 that is enclosed within valve body 1 top etc. and constitutes by valve body 1, the valve plate 2 in valve body 1, top.Rubber seal 4 is a hollow tubular, interior water-filling or gas, by conduit 9 be enclosed within valve body 1 top and insert rubber tyre 5 UNICOMs in the fixing circular groove, the ring slider 6 that is enclosed within valve body 1 top is arranged on rubber tyre 5, slide block 6 can slide up and down along the guide rail on the valve body 1, above the slide block 6 is handle 7, on valve body 1 top, give rubber tyre 5 pressurizations or go pressure through slide block 6 by handle with sleeve 7 by thread set for handle 7, again by conduit 9, for adding in the rubber seal 4 or release water or gas.
Have a groove on valve rod 3 tops, the latch in the handle 7 that is sleeved on the valve body 18 can be inserted in the groove on valve rod 3 tops, handle 7 and valve rod 3 are coupled together, when latch 8 is pulled out, can put into the groove on the handle 7 from the groove of valve rod 3.
The utility model has the advantages that significantly: during owing to keying, do not have surface friction drag between valve plate 2 and the rubber seal 4, so the torque on the valve rod 3 is little, correspondingly valve rod 3 cross sections are also little, saved material; Owing to adopt handle to rotate, than simple, laborsaving with other driving device structures; The utility model can not reduce sealability with rubber seal 4 wearing and tearing because of valve plate 2; Can adjust sealing load according to pressure medium, and not be subjected to water quality impact, close tight.
Structural representation when Fig. 1 closes for the utility model.
Structural representation when Fig. 2 is the utility model standard-sized sheet.
An embodiment of the present utility model is made of valve body 1, valve plate 2, valve rod 3, rubber seal 4, rubber tyre 5, slide block 6, handle 7, latch 8, conduit 9 etc. as shown in Figure 1.As shown in Figure 2, butterfly valve is opening state, when closing butterfly valve, at first the dextrorotation handle 7, make valve plate 2 be in closed condition, from the groove on valve rod 3 tops, pull out latch 8 then, dextrorotation handle 7, this moment, valve rod 3 and valve plate 2 were motionless, and handle 7 is pressing slide block 6 to lower slider, slide block 6 is being pressed rubber tyre 5 to peel off the annular groove wall of valve body 1 gradually and is being sticked slide block 6, fricton-tight friction between the annular groove wall on rubber tyre 5 and slide block 6 and the valve body 1.Along with slide block 6 glides gradually, water or gases in the rubber tyre 5 are pressed into rubber seal 4 inner chamber parts by conduit 9, make the pressure in the rubber seal 4 cumulative, pressing between rubber seal 4 outer surfaces and the valve plate 2 outer gardens closely to contact, finally finish sealing.Sealing load can be adjusted according to the size of pressure medium.
As shown in Figure 1, butterfly valve is closed condition, when wanting opened butterfly valve, revolve handle 7 counterclockwise, make slide block 6 reduce pressure to rubber tyre 5 gradually, a part of water or gas in the rubber seal 4 are pressed in the rubber tyre 5 by conduit 9, rubber tyre 5 is up pushed up slide block 6, and rubber tyre 5 is peeled off slide block 6 gradually and is full of circular groove on the valve body 1.When rubber seal 4 and valve plate 2 are no press contacts (rubber seal 4 chamber pressures are not more than pressure medium), latch 8 is inserted in the groove of valve rod 3, continue to revolve handle 7 counterclockwise, just can open valve plate 2, regulate open degree more according to actual needs.
This kinetic pressure sealing wafer type butterfly valve can be adjusted sealing load according to pressure medium, closes tightly, and good sealing effect, easy to operate, laborsaving can be widely used in the Flow-rate adjustment of various flowing mediums and dams.
Claims (2)
1, a kind of by valve body (1), valve plate (2) in valve body (1), the valve rod (3) that top is stretched out valve body (1) and is fixed together with valve plate (2), be fastened on the rubber seal (4) in the valve body (1) and be enclosed within the wafer type butterfly valve of the formations such as handle (7) on valve body (1) top, it is characterized in that rubber seal (4) is hollow tubular, interior water-filling or gas, by conduit (9) be enclosed within valve body (1) top and insert rubber tyre (5) UNICOM in the fixing circular groove, the ring slider (6) that is enclosed within valve body (1) top is arranged on rubber tyre (5), is the handle (7) that is sleeved on valve body (1) top above the slide block (6).
2, wafer type butterfly valve according to claim 1 is characterized in that valve rod (3) top has a groove that can insert latch (8), has the groove that can put into latch (8) on the handle (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95219810 CN2229014Y (en) | 1995-08-11 | 1995-08-11 | Straight butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95219810 CN2229014Y (en) | 1995-08-11 | 1995-08-11 | Straight butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2229014Y true CN2229014Y (en) | 1996-06-12 |
Family
ID=33867892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95219810 Expired - Fee Related CN2229014Y (en) | 1995-08-11 | 1995-08-11 | Straight butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2229014Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764008A (en) * | 2016-12-28 | 2017-05-31 | 湖南泵阀制造有限公司 | Two-way self sealing valve |
| CN110906013A (en) * | 2019-11-20 | 2020-03-24 | 章锡明 | Compensation type sealing butterfly valve with sequential linkage opening and closing charging and pressure relief functions |
| CN114263751A (en) * | 2021-12-11 | 2022-04-01 | 李岸隆 | Scour prevention butterfly valve |
-
1995
- 1995-08-11 CN CN 95219810 patent/CN2229014Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764008A (en) * | 2016-12-28 | 2017-05-31 | 湖南泵阀制造有限公司 | Two-way self sealing valve |
| CN110906013A (en) * | 2019-11-20 | 2020-03-24 | 章锡明 | Compensation type sealing butterfly valve with sequential linkage opening and closing charging and pressure relief functions |
| CN110906013B (en) * | 2019-11-20 | 2023-08-08 | 台州市工宇阀门有限公司 | Compensation type sealing butterfly valve with sequential linkage opening and closing functions and pressure relief functions |
| CN114263751A (en) * | 2021-12-11 | 2022-04-01 | 李岸隆 | Scour prevention butterfly valve |
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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 |