CN201236958Y - Stop cock - Google Patents
Stop cock Download PDFInfo
- Publication number
- CN201236958Y CN201236958Y CNU2008200550800U CN200820055080U CN201236958Y CN 201236958 Y CN201236958 Y CN 201236958Y CN U2008200550800 U CNU2008200550800 U CN U2008200550800U CN 200820055080 U CN200820055080 U CN 200820055080U CN 201236958 Y CN201236958 Y CN 201236958Y
- Authority
- CN
- China
- Prior art keywords
- cock
- valve body
- valve
- sealing
- plug
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 239000004033 plastic Substances 0.000 abstract description 4
- 229920003023 plastic Polymers 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 238000012856 packing Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model relates to a plug valve, which belongs to the technical field of the valve. The plug valve comprises a valve body, a plug cock, a valve cap, a sealing element and a transmission device, wherein, plastics are lined on the surfaces of the valve body and the plug cock. The plug valve is characterized in that the sealing surface of the valve body is an annular convex rib structure, an annular groove is formed at the upper part of the plug cock after being lined with the plastics, and an O-shaped sealing ring is placed in the annular groove; and the utility model has the advantages that since the sealing surface of the valve body is the convex rib structure, the sealed contact area between the sealing surface of the valve body and the plug cock is small, the friction between the sealing surface of the plug cock and the sealing surface of the valve body is reduced, and meanwhile, since the O-shaped sealing ring and the sealing gasket are additionally arranged at the upper part of the plug cock, the friction between the upper end surface of the plug cock and the sealing packing material is reduced, and the plug valve also has the advantages of small operating torque, good sealing performance, reliable work, and the like.
Description
[technical field]
The utility model relates to a kind of valve technology field, specifically about a kind of stopcock that serves as a contrast plastics.
[background technique]
Existing lining is moulded the structure of stopcock and generally is made up of valve body, cock, valve gap, filler, handle, valve body contacts with cock is whole, frictional force is big, sealing effect is bad, top is filling-material structure, has increased the switching torque of valve, is not easy to the pretightening force of regulating cock simultaneously, this class stopcock nominal pressure is less, and driving torque is big.Big or the electricity of operation labor intensity, gas transmission energy consumption are big, are generally below the 0.6MPa, are applicable to small-borely, have limited its using scope.
[summary of the invention]
The purpose of this utility model provides that a kind of nominal pressure is bigger, and open and close torque is little, good sealing effect, and using scope is big, the stopcock of long service life.
The technical solution of the utility model: a kind of stopcock comprises valve body, cock, valve gap, seal element and transmission device, valve body and cock surface lining are moulded, mainly be that valve body sealing surface is the annular convex rib structure, the cock lining is moulded superior posterior an annular groove, puts reset shape seal ring in the annular groove.
In above scheme, the adjusting screw of the sealing pretightening force of can regulate cock and valve body is housed on the valve gap.
The beneficial effects of the utility model are that valve body sealing surface is a convex rib structure, long-pending little with the sealing contact surface of cock, reduced the frictional force between cock sealing surface and the valve body sealing surface, the top of cock simultaneously is added with " 0 " shape seal ring and sealing gasket, reduced the frictional force between cock upper-end surface and the stuffing box packing, it is little to have the operation moment of torsion, good seal performance, advantages such as reliable operation.In addition, after on the valve gap adjusting screw being set, the sealing pretightening force between can regulate cock and the valve body prolongs product working life.
[description of drawings]
Fig. 1 is a structural representation of the present utility model.
[specific embodiment]
Below in conjunction with the drawings and specific embodiments the utility model is described in detail:
Referring to Fig. 1, by the stopcock that valve body 1, cock 2, valve gap 7 and transmission device 13 are formed, transmission device 13 can adopt electronic, pneumatic, hydraulic actuator, and valve body 1 is moulded with cock 2 linings.Metal covering is processed several skewed slots before lining is moulded, and prevents plastic lining layer and metal-stripping.Valve body 1 sealing surface shapes by the method for mold pressing, and the sealing surface of projection has reduced the area of contact with cock 2, reduces the operation moment of torsion, is convenient to sealing.Cock 2 tops are processed with annular groove, put reset shape seal ring 3, " 0 " shape seal ring 3 tops are provided with teflon gasket 4, reduce the frictional force of cock 2 switches, can prevent simultaneously that medium from leaking outside seals, be provided with adjusting screw 6 on valve gap 7, adjusting screw 6 is by the sealing pretightening force between spacer 5 regulating cocks 2 and the valve body 1.Transmission device 13 is connected with cock 2 with key 12 by passing through coupling shaft 11, and is fixed on the support 9 by bolt 10, and support 9 is fixed on the valve gap 7 by bolt 8.
Claims (2)
1, a kind of stopcock, comprise valve body, cock, valve gap, seal element and transmission device, valve body and cock surface lining are moulded, and it is characterized in that described valve body sealing surface is the ring-type convex rib structure, the cock lining is moulded superior posterior an annular groove, puts reset shape seal ring in the annular groove.
2, a kind of stopcock according to claim 1 is characterized in that being equipped with on the valve gap adjusting screw of can regulate cock and valve seal pretightening force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200550800U CN201236958Y (en) | 2008-01-25 | 2008-01-25 | Stop cock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200550800U CN201236958Y (en) | 2008-01-25 | 2008-01-25 | Stop cock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201236958Y true CN201236958Y (en) | 2009-05-13 |
Family
ID=40649689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200550800U Expired - Lifetime CN201236958Y (en) | 2008-01-25 | 2008-01-25 | Stop cock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201236958Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882605A (en) * | 2019-04-15 | 2019-06-14 | 浙江苏强格液压股份有限公司 | A kind of high pressure cock-type shut-off valve |
| CN111442106A (en) * | 2020-03-26 | 2020-07-24 | 远大阀门集团有限公司 | Plug valve with uniform-section oval flow channel |
-
2008
- 2008-01-25 CN CNU2008200550800U patent/CN201236958Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882605A (en) * | 2019-04-15 | 2019-06-14 | 浙江苏强格液压股份有限公司 | A kind of high pressure cock-type shut-off valve |
| CN109882605B (en) * | 2019-04-15 | 2024-01-12 | 浙江苏强格液压股份有限公司 | High-pressure cock type stop valve |
| CN111442106A (en) * | 2020-03-26 | 2020-07-24 | 远大阀门集团有限公司 | Plug valve with uniform-section oval flow channel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |