CN206449209U - A kind of cold gum centre-pivoted butterfly valve - Google Patents
A kind of cold gum centre-pivoted butterfly valve Download PDFInfo
- Publication number
- CN206449209U CN206449209U CN201720107050.9U CN201720107050U CN206449209U CN 206449209 U CN206449209 U CN 206449209U CN 201720107050 U CN201720107050 U CN 201720107050U CN 206449209 U CN206449209 U CN 206449209U
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- Prior art keywords
- valve
- valve seat
- rubber
- ring
- butterfly plate
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Abstract
The utility model discloses a kind of cold gum centre-pivoted butterfly valve, including valve body, rubber valve seat, butterfly plate, valve rod, the first O-ring and the second O-ring, the rubber valve seat is bonded in the integrated structure of valve interior wall and port, the butterfly plate is in valve inner, the valve rod is connected through valve body upper gland with butterfly plate, the rubber valve seat is longer than axis hole wall in the horizontal direction, sealing ring is placed above the rubber valve seat around valve rod, the valve rod covers the first O-ring and the second O-ring close to top flange position.The butterfly plate top and bottom and rubber valve seat are into plane contact.Valve body and rubber valve seat formation integral structure.When opening and closing, rubber valve seat is allowed, without play gap, preferably to extend rubber valve seat service life with valve body.Rubber valve seat and butterfly plate above-below direction are platform sealing surface structure, and upper-lower seal is plane, and sealing property is more preferable.Using three seals, the favorable sealing property of valve.
Description
Technical field
The utility model is related to valve technology field, more particularly to a kind of cold gum centre-pivoted butterfly valve.
Background technology
At present, valve is the control unit in fluid delivery system, with cut-off, regulation, water conservancy diversion, prevent adverse current, voltage stabilizing,
The function such as shunting or overflow pressure relief.Low temperature centre-pivoted butterfly valve can be used for low temperature environment to control empty gas and water, seawater, gas, various corruption
Corrosion medium（Salt resistance, alkali lye, briny environment, hydrocarbons, solvent etc.）, slurries, oil product, etc. all kinds fluid pipeline；
The life-span is low at low temperatures for general center line rubber butterfly valve, and sealing is poor.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of cold gum centre-pivoted butterfly valve, valve body and rubber valve
Seat is integral type structure, and metal valve body and valve rod are kept apart with medium completely, reduces corrosion of the medium to valve rod and valve body,
Integral structure, without play gap, preferably extends rubber valve seat service life by valve seat and valve body；Using three seal structures,
Make valve that there is good seal performance.Concrete scheme of the present utility model is as follows to achieve the above object：
A kind of cold gum centre-pivoted butterfly valve, including valve body, rubber valve seat, butterfly plate, valve rod, the first O-ring and second are O-shaped
Circle, the rubber valve seat is bonded in the integrated structure of valve interior wall and port, and the butterfly plate is in valve inner, and the valve rod is worn
Cross valve body upper gland to be connected with butterfly plate, the rubber valve seat is longer than valve above axis hole wall, the rubber valve seat in the horizontal direction
Sealing ring is placed around bar, the valve rod covers the first O-ring and the second O-ring close to top flange position.
The butterfly plate top and bottom and rubber valve seat are into plane contact.
As a result of as above technical scheme, the utility model has following features：
Valve body and rubber valve seat are integral type structure, and metal valve body and valve rod are kept apart with medium completely, reduce Jie
The corrosion of confrontation valve rod and valve body, allows valve seat, without play gap, preferably to extend rubber valve seat service life with valve body；Using three
Seal structures, make valve have good seal performance.
Brief description of the drawings
Fig. 1 is the utility model side view.
Fig. 2 is C-C shown in Fig. 1 to sectional view.
Embodiment
In order that technological means, creation characteristic, reached purpose and effect that the utility model is realized are easy to understand, under
Face combines and is specifically illustrating, and the utility model is expanded on further.
As shown in Figure 1 and Figure 2, the utility model includes valve body 1, rubber valve seat 2 and butterfly plate 3, and valve body 1 and rubber valve seat 2 are
Vulcanize integral structure, rubber valve seat 2 is sealed with butterfly plate about 3 for horizontal plane, forms first of sealing；The top of rubber valve seat 2,
Sealing ring around valve rod 4 constitutes second sealing, and the O-ring 5 of valve rod 4 and first, the second O-ring 6 constitute three seals.
Preferably, rubber valve seat 2 uses high temperature curing process, valve body 1 and rubber valve seat 2 are firmly bonded to one
Rise, form integral structure.When opening and closing, allow rubber valve seat 2 with valve body 1 without play gap, preferably extending rubber valve seat 2 makes
Use the life-span.
Preferably, rubber valve seat 2 and the above-below direction of butterfly plate 3 are platform sealing surface structure, upper-lower seal is plane, sealing
Performance more preferably, preferably limits the position of butterfly plate 3, solves the problem of long-term use butterfly plate 3 upper end is leaked.
General principle of the present utility model, principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, the utility model can also on the premise of the utility model spirit and scope are not departed from
There are various changes and modifications, these changes and improvements are both fallen within the range of claimed the utility model.The utility model will
Protection domain is asked to be defined by appended claims and its equivalent.
Claims (2)
1. a kind of cold gum centre-pivoted butterfly valve, it is characterised in that including valve body, rubber valve seat, butterfly plate, valve rod, the first O-ring and
Second O-ring, the rubber valve seat is bonded in the integrated structure of valve interior wall and port, and the butterfly plate is in valve inner, institute
State valve rod to be connected with butterfly plate through valve body upper gland, the rubber valve seat is longer than axis hole wall, the rubber valve in the horizontal direction
Sealing ring is placed around the valve rod of seat top, the valve rod covers the first O-ring and the second O-ring close to top flange position.
2. a kind of cold gum centre-pivoted butterfly valve as claimed in claim 1, it is characterised in that the butterfly plate top and bottom and rubber valve
Seat is into plane contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720107050.9U CN206449209U (en) | 2017-02-04 | 2017-02-04 | A kind of cold gum centre-pivoted butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720107050.9U CN206449209U (en) | 2017-02-04 | 2017-02-04 | A kind of cold gum centre-pivoted butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206449209U true CN206449209U (en) | 2017-08-29 |
Family
ID=59667981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720107050.9U Active CN206449209U (en) | 2017-02-04 | 2017-02-04 | A kind of cold gum centre-pivoted butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206449209U (en) |
-
2017
- 2017-02-04 CN CN201720107050.9U patent/CN206449209U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 201411 building 3, No. 99, Desheng Road, Fengcheng Town, Fengxian District, Shanghai Patentee after: Safety valve fluid control (Shanghai) Co.,Ltd. Address before: 201400 room 205, No. 688, Fengwang Road, Fengcheng Town, Fengxian District, Shanghai Patentee before: SHANGHAI ANFA FLOW CONTROL Co.,Ltd. |