CN201779278U - Butterfly valve squeezed seal structure - Google Patents
Butterfly valve squeezed seal structure Download PDFInfo
- Publication number
- CN201779278U CN201779278U CN2010205299820U CN201020529982U CN201779278U CN 201779278 U CN201779278 U CN 201779278U CN 2010205299820 U CN2010205299820 U CN 2010205299820U CN 201020529982 U CN201020529982 U CN 201020529982U CN 201779278 U CN201779278 U CN 201779278U
- Authority
- CN
- China
- Prior art keywords
- valve
- butterfly
- valve body
- seat ring
- butterfly 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 - Lifetime
Links
- 238000001125 extrusion Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000002093 peripheral effect Effects 0.000 abstract 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model discloses a butterfly valve squeezed seal structure, which comprises a valve body, an insert, a butterfly board and a valve seat ring. The butterfly board is installed in a central passage of the valve body and rotates around a valve axis, the insert and the valve seat ring are arranged on the peripheral side of the closed butterfly board and fixed onto the valve body, the butterfly board is elliptical, the valve body and the passage are matched with the butterfly board in shape so that the valve seat ring is annularly attached to the surface of the elliptically projecting peripheral wall of the butterfly board due to mechanical stress, the cross section of the valve seat ring is in a U-shaped structure, the bottom end of the U-shaped structure is oriented to the axial center of the passage of the valve body, the two top ends of the U-shaped structure respectively contact with the insert and the valve body, the bottom end of the closed U-shaped structure is in squeezed contact with the peripheral wall of the butterfly board. When a valve is closed, the unique U-shaped valve seat ring is automatically annularly attached to the surface of the butterfly board due to the mechanical stress to generate fine sealing force, and the butterfly valve squeezed seal structure has the advantages of reasonable structure, safety, stability and the like.
Description
Technical field
The utility model discloses the extrusion type sealed structure of a kind of butterfly valve, divides by International Patent Classification (IPC) (IPC) to belong to valve seat Switch manufacturing technology field, especially relates to a kind ofly utilizing nonstandard director circle formula butterfly plate to push the sealing configuration of all side valve seat rings.
Background technique
Butterfly valve is one of valve general in industry and the civil engineering, and the butterfly plate of butterfly valve or flap are installed on the diametric(al) of pipeline, in the butterfly valve body cylindrical channel, the disc butterfly plate rotates around axis, and angle of swing is between 0 °～90 °, when rotating to 90 °, valve then is in full-gear.Be provided with the seal ring member between the existing butterfly plate general standard circle, itself and valve seat, because the profile of butterfly plate be the positive circle of rule, its all side and seal ring even contact when closing, butterfly plate and seal ring extrusion stress are not strong, and sealability shows relatively poor.
Summary of the invention
At the deficiency of existing butterfly valve seal technology, the utility model provides a kind of rational in infrastructure, extrusion type sealed structure of butterfly valve that sealing is reliable and stable.
For achieving the above object, the utility model is achieved through the following technical solutions:
The extrusion type sealed structure of a kind of butterfly valve, comprise valve body, inserts, butterfly plate and seat ring, butterfly plate is installed on the central passage of valve body and rotates around valve shaft, when inserts and seat ring are arranged at closed condition butterfly plate week side and being fixed on the valve body, wherein, described butterfly plate is oval, and valve body cooperates with butterfly plate with channel shape so that seat ring is affixed on the butterfly plate week wall surface of ovalize projection because of the mechanical stress ring.
Further, described seat ring cross section is the U-shaped structure, and the bottom of U-shaped structure is towards the axle center of valve channel, and two tops of U-shaped structure contact with valve body with inserts respectively, and the bottom of U-shaped structure contacts with butterfly plate perisporium extruding type during closed condition.
Further, described butterfly plate perisporium is a ramp structure, can guarantee butterfly valve two way sealed dynamic stability.
The utility model is similar to the oblique sheet of the cutting-out on the hard metal cone by the oval butterfly plate that high tolerance is processed into.When valve closing, the oval butterfly plate that is positioned at the major axis place promotes valve body to locating, and seat ring is contacted at (ellipse) minor axis place with butterfly plate.When valve open, butterfly plate moves, and does not contact with valve body, and seat ring returns to circle.
The U-shaped seat ring of the utility model uniqueness, when valve closing, seat ring automatically encircles because of mechanical stress and is affixed on the butterfly plate surface, produces good sealing force, has advantages such as rational in infrastructure, safety and stability.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model partial view.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Embodiment: see also Fig. 1, the extrusion type sealed structure of a kind of butterfly valve, comprise valve body 1, inserts 2, butterfly plate 3 and seat ring 4, butterfly plate 3 is installed on the central passage of valve body 1 and rotates around valve shaft, butterfly plate 3 all sides and being fixed on the valve body 1 when inserts 2 and seat ring 4 are arranged at closed condition, butterfly plate 3 is oval, and valve body 1 cooperates with butterfly plate 3 with channel shape so that seat ring 4 is affixed on butterfly plate 3 all wall surfaces of ovalize projection because of the mechanical stress ring.
See also Fig. 2, described seat ring 4 cross sections are the U-shaped structure, the bottom 401 of U-shaped structure is towards the axle center of valve channel 101, and two tops 402,403 of U-shaped structure contact with valve body 3 with inserts 2 respectively, and the bottom 401 of U-shaped structure contacts with butterfly plate 3 perisporium extruding types during closed condition.Described butterfly plate 3 perisporiums are ramp structure, can guarantee butterfly valve two way sealed dynamic stability.
The U-shaped seat ring of the utility model uniqueness, when valve closing, seat ring automatically encircles because of mechanical stress and is affixed on the butterfly plate surface, produces good sealing force, has advantages such as rational in infrastructure, safety and stability.
The above record only for utilizing the embodiment of this origination techniques content, anyly is familiar with modification, the variation that this skill person uses this creation to do, and all belongs to the claim of this creation opinion, and is not limited to those disclosed embodiments.
Claims (3)
1. extrusion type sealed structure of butterfly valve, comprise valve body, inserts, butterfly plate and seat ring, butterfly plate is installed on the central passage of valve body and rotates around valve shaft, when inserts and seat ring are arranged at closed condition butterfly plate week side and being fixed on the valve body, it is characterized in that: described butterfly plate is for oval, and valve body cooperates with butterfly plate with channel shape so that seat ring is affixed on the butterfly plate week wall surface of ovalize projection because of the mechanical stress ring.
2. the extrusion type sealed structure of butterfly valve according to claim 1, it is characterized in that: described seat ring cross section is the U-shaped structure, the bottom of U-shaped structure is towards the axle center of valve channel, two tops of U-shaped structure contact with valve body with inserts respectively, and the bottom of U-shaped structure contacts with butterfly plate perisporium extruding type during closed condition.
3. the extrusion type sealed structure of butterfly valve according to claim 1 is characterized in that: described butterfly plate perisporium is a ramp structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205299820U CN201779278U (en) | 2010-09-14 | 2010-09-14 | Butterfly valve squeezed seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205299820U CN201779278U (en) | 2010-09-14 | 2010-09-14 | Butterfly valve squeezed seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201779278U true CN201779278U (en) | 2011-03-30 |
Family
ID=43792489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205299820U Expired - Lifetime CN201779278U (en) | 2010-09-14 | 2010-09-14 | Butterfly valve squeezed seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201779278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943270A (en) * | 2010-09-14 | 2011-01-12 | 厦门翰达阀门有限公司 | Butterfly valve extrusion type sealing structure |
-
2010
- 2010-09-14 CN CN2010205299820U patent/CN201779278U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943270A (en) * | 2010-09-14 | 2011-01-12 | 厦门翰达阀门有限公司 | Butterfly valve extrusion type sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160224 Address after: 415400 Hunan Province, Tianjin city, No. three Bridge No. 66 attached to No. 301 Patentee after: Huang Jianhong Address before: 361000, Xiamen, Fujian Province, Huli District, Jiang Taiwan street, No. 289, 626 units Patentee before: Xiamen Heads Valve Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110330 |
|
| CX01 | Expiry of patent term |