CN206770712U - A kind of butterfly valve - Google Patents
A kind of butterfly valve Download PDFInfo
- Publication number
- CN206770712U CN206770712U CN201720676390.3U CN201720676390U CN206770712U CN 206770712 U CN206770712 U CN 206770712U CN 201720676390 U CN201720676390 U CN 201720676390U CN 206770712 U CN206770712 U CN 206770712U
- Authority
- CN
- China
- Prior art keywords
- valve
- catheter
- butterfly
- annular groove
- butterfly valve
- 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 kind of butterfly valve, including：Valve body, valve plate and valve seat, the valve plate and valve seat are arranged in valve body, the high-pressure side of the valve body is provided with through hole, the high-pressure side of valve body is when valve is closed, the high side of pressure, valve plate coordinates with valve seat installs and can be formed sealing surface, the valve seat is provided with 1~4 annular groove, the flexible pocket of annular is provided with each annular groove, every flexible pocket is confluxed to be connected in catheter, catheter with through hole, and the catheter is provided with the first control valve, branch pipe is additionally provided with catheter, the second control valve is provided with branch pipe.Technical purpose of the present utility model is to provide one kind being capable of the more preferable butterfly valve of sealing property.
Description
Technical field
Valve technology field is the utility model is related to, more particularly to a kind of butterfly valve.
Background technology
Butterfly valve is called flap valve, is a kind of regulating valve simple in construction, what the switch available for low pressure pipeline medium controlled
Butterfly valve refers to that closure member (flap or butterfly plate) is disk, a kind of valve of open and close is reached around valve shaft rotation, valve can
For controlling all kinds such as empty gas and water, steam, various Korrosionsmediums, mud, oil product, liquid metal and radiating medium
The flowing of fluid.
Butterfly valve is easy to control, but butterfly valve, for ball valve, it does not have ball valve can bear bigger pressure like that
Power, it is therefore desirable to increase the sealing property of butterfly valve and improve the voltage endurance capability of butterfly valve.
Utility model content
Technical purpose of the present utility model is to provide one kind being capable of the more preferable butterfly valve of sealing property.
The utility model is achieved through the following technical solutions：
Butterfly valve of the present utility model, including：Valve body, valve plate and valve seat, the valve plate and valve seat are arranged in valve body, described
The high-pressure side of valve body is provided with through hole, and the high-pressure side of valve body is the high side of pressure when valve is closed, and valve plate coordinates with valve seat pacifies
Fill and sealing surface can be formed, the valve seat is provided with 1~4 annular groove, the flexible pocket of annular is provided with each annular groove, often
Root flexible pocket is confluxed to be connected in catheter, catheter with through hole, and the catheter is provided with the first control valve, is also set on catheter
There is branch pipe, the second control valve is provided with branch pipe.
Butterfly valve of the present utility model, the ring surface that the valve plate coordinates with annular groove are provided with ring packing line.
Butterfly valve of the present utility model, the flexible pocket are elastic caoutchouc capsule.
Butterfly valve of the present utility model, the quantity of the annular groove is 2.
Butterfly valve of the present utility model, the ring packing line height of projection are 0.2~0.8mm.
Butterfly valve of the present utility model, the through hole are connected as flange with catheter (5) and are connected or are welded to connect.
The beneficial effects of the utility model are：
By being provided with multiple annular grooves on valve seat, and the through hole being provided with annular groove in flexible pocket, with valve body connects
The first control valve on the catheter connect is opened, and when the second control valve is closed, catheter can be flowed on high-tension side medium,
And cause flexible pocket expansion, so that flexible pocket extrudes to form sealing surface with valve plate, so that the sealing property of butterfly valve is more
It is good, and valve high side pressure is bigger, and the pressure between flexible pocket and valve plate is also bigger, and automatically adjusts, dependable performance；
When butterfly valve needs to open, the second control valve is opened, closes the first control valve, so as to which first the high-pressure medium in flexible pocket be released,
Consequently facilitating opening valve plate, torque is opened and closed between valve plate and valve seat without increasing.
Brief description of the drawings
Fig. 1 is the structural representation of butterfly valve；
Fig. 2 is the enlarged drawing of a in Fig. 1.
Marked in figure：1 it is valve body, 2 be valve plate, 3 be valve seat, 4 be flexible pocket, 5 be catheter, 6 is the first control valve, 7
It is annular groove for the second control valve, 8,9 be ring packing line, 10 is through hole.
Embodiment
The utility model is described in detail below in conjunction with the accompanying drawings.
Butterfly valve as shown in Figures 1 and 2, including：Valve body 1, valve plate 2 and valve seat 3, the valve plate 2 and valve seat 3 are arranged on valve
In body 1, the high-pressure side of the valve body 1 is provided with through hole 10, and valve plate 2 coordinates with valve seat 3 installs and can be formed sealing surface, the valve
Seat 3 is provided with 1~4 annular groove 8, and the flexible pocket 4 of annular is provided with each annular groove 8, and every flexible pocket 4 is confluxed in catheter
5, catheter 5 is connected with through hole 10, and the catheter 5 is provided with the first control valve 6, branch pipe is additionally provided with catheter 5, in branch pipe
It is provided with the second control valve.
The ring surface that the valve plate 2 coordinates with annular groove 8 is provided with ring packing line 9, and the ring packing line 9 is raised high
Spend for 0.2~0.8mm, preferably 0.5mm, so as to increase sealing property.The flexible pocket 4 is elastic caoutchouc capsule, so as to
Its sealing property can be increased in the presence of pressure medium.The quantity of the annular groove 8 is 2.The through hole 10 and drain
Pipe 5 is connected as flange connection or is welded to connect, preferred weld mode, and welding can reduce leakage in the use in later stage
Point, reduce the reliability of device.
By being provided with multiple annular grooves on valve seat, and the through hole being provided with annular groove in flexible pocket, with valve body connects
The first control valve on the catheter connect is opened, and when the second control valve is closed, catheter can be flowed on high-tension side medium,
And cause flexible pocket expansion, so that flexible pocket extrudes to form sealing surface with valve plate, so that the sealing property of butterfly valve is more
It is good, and valve high side pressure is bigger, and the pressure between flexible pocket and valve plate is also bigger, and automatically adjusts, dependable performance；
When butterfly valve needs to open, the second control valve is opened, closes the first control valve, so as to which first the high-pressure medium in flexible pocket be released,
Consequently facilitating opening valve plate, torque is opened and closed between valve plate and valve seat without increasing.The improved valve is need not be by
External force, it is not necessary in the case of consuming the energy, by increasing capacitance it is possible to increase the sealing property of butterfly valve.
Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every
The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or be directly or indirectly used in
Other related technical areas, similarly it is included in scope of patent protection of the present utility model.
Claims (6)
- A kind of 1. butterfly valve, it is characterised in that including：Valve body (1), valve plate (2) and valve seat (3), the valve plate (2) and valve seat (3) In valve body (1), the high-pressure side of the valve body (1) is provided with through hole (10), and valve plate (2) coordinates installation and energy with valve seat (3) Sealing surface is enough formed, the valve seat (3) is provided with 1~4 annular groove (8), and the flexible pocket of annular is provided with each annular groove (8) (4), every flexible pocket (4) is confluxed is connected in catheter (5), catheter (5) with through hole (10), and the catheter (5) is provided with First control valve (6), catheter are additionally provided with branch pipe on (5), and the second control valve is provided with branch pipe.
- 2. butterfly valve according to claim 1, it is characterised in that on the ring surface that the valve plate (2) coordinates with annular groove (8) Provided with ring packing line (9).
- 3. butterfly valve according to claim 1, it is characterised in that the flexible pocket (4) is elastic caoutchouc capsule.
- 4. butterfly valve according to claim 1, it is characterised in that the quantity of the annular groove (8) is 2.
- 5. butterfly valve according to claim 2, it is characterised in that ring packing line (9) height of projection be 0.2~ 0.8mm。
- 6. butterfly valve according to claim 2, it is characterised in that the through hole (10) is connected as flange company with catheter (5) Connect or be welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720676390.3U CN206770712U (en) | 2017-06-12 | 2017-06-12 | A kind of butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720676390.3U CN206770712U (en) | 2017-06-12 | 2017-06-12 | A kind of butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206770712U true CN206770712U (en) | 2017-12-19 |
Family
ID=60637419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720676390.3U Expired - Fee Related CN206770712U (en) | 2017-06-12 | 2017-06-12 | A kind of butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206770712U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113654826A (en) * | 2021-07-14 | 2021-11-16 | 深圳大学 | Pressure-maintaining coring sealing structure with flexible part |
-
2017
- 2017-06-12 CN CN201720676390.3U patent/CN206770712U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113654826A (en) * | 2021-07-14 | 2021-11-16 | 深圳大学 | Pressure-maintaining coring sealing structure with flexible part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171219 Termination date: 20180612 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |