CN204493747U - A kind of bidirectional sealed butterfly valve - Google Patents
A kind of bidirectional sealed butterfly valve Download PDFInfo
- Publication number
- CN204493747U CN204493747U CN201520057060.7U CN201520057060U CN204493747U CN 204493747 U CN204493747 U CN 204493747U CN 201520057060 U CN201520057060 U CN 201520057060U CN 204493747 U CN204493747 U CN 204493747U
- Authority
- CN
- China
- Prior art keywords
- butterfly plate
- valve
- butterfly
- valve body
- valve rod
- 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 provides a kind of bidirectional sealed butterfly valve, comprises valve body, valve rod, butterfly plate, filler, seal ring and valve seat, is provided with butterfly plate in described valve body, and described butterfly plate is fixed on valve rod, and described valve rod runs through valve body from top to bottom; Described seal ring is installed in butterfly plate periphery, contacts with the valve seat outside butterfly plate; Described butterfly plate is eccentric setting, and described valve seat cross section is toroidal, and the seal ring of its sealing inclined-plane place and butterfly plate periphery forms sealing pair; Be provided with Upper shaft sleeve between described valve rod upper end and valve body, between described valve rod lower end and valve body, be provided with Lower shaft sleeve; Filler is filled with on the upside of described Upper shaft sleeve; Described butterfly plate is the oval butterfly plate of eccentric oblique cone; The utility model install time by MEDIA FLOW to restriction, also not by the impact of spatial position, can install in any direction, be applicable to adjustment or the open and close of bi-directional medium flux and flow direction on pipeline, thus formation pipeline medium flows to bidirectional bearing, two way sealed, zero leakage.
Description
Technical field
The utility model belongs to valve technology field, especially relates to a kind of bidirectional sealed butterfly valve.
Background technique
Butterfly valve is Flap valve again, it is the simple modulating valve of a kind of structure, the butterfly valve that can be used for the switch control rule of low pressure pipeline medium refers to that closure member (flap or butterfly plate) is disk, rotate a kind of valve reaching open and close around valve shaft, valve can be used for the flowing controlling all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.On pipeline, main rising is cut off and throttling action.Butterfly valve of the prior art is mostly unidirectional design, and this structures shape medium is merely able to flow into from one end of valve, if medium oppositely flows into, sealing effect is very poor, therefore can be subject to the impact of spatial position and installation direction when in use.
Summary of the invention
Problem to be solved in the utility model is to provide and a kind ofly operates light, good airproof performance, long service life, not by the bidirectional sealed butterfly valve of media flow aspect effect.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of bidirectional sealed butterfly valve, comprises valve body, valve rod, butterfly plate, filler, seal ring and valve seat, is provided with butterfly plate in described valve body, described butterfly plate is fixed on valve rod, and described valve rod runs through valve body from top to bottom; Described seal ring is installed in butterfly plate periphery, contacts with the valve seat outside butterfly plate; Described butterfly plate is eccentric setting, and described valve seat cross section is toroidal, and the seal ring of its sealing inclined-plane place and butterfly plate periphery forms sealing pair; Be provided with Upper shaft sleeve between described valve rod upper end and valve body, between described valve rod lower end and valve body, be provided with Lower shaft sleeve; Filler is filled with on the upside of described Upper shaft sleeve.
Described butterfly plate is the oval butterfly plate of eccentric oblique cone.
Described filler is provided with gland.
Described valve body bottom is provided with lower end cap.
Described butterfly plate and valve rod are fixed by straight pin.
Owing to adopting technique scheme, described seal ring is installed in butterfly plate periphery, contacts with the valve seat outside butterfly plate; Described butterfly plate is eccentric setting, and described valve seat cross section is toroidal, and the seal ring of its inclined-plane place and butterfly plate periphery forms sealing pair; Energy of deformation stored by sealing when reverse flow state between butterfly plate and valve seat compensates reverse media pressure, the moment that butterfly plate is being opened, and sealing surface departs from completely; Butterfly plate almost without friction, is closed light, is had the auto-lock function closing tighter and tighter, selfsealings performance in the process of closing; Butterfly plate is made to open drag minimization; In opening-closing process, butterfly plate sealing surface can complete along 360 ° of circumference each points moment fast, quick and precisely must achieve the sealing action of closing and contacting and automatically matching; Also achieve the fricton-tight friction in opening-closing process between butterfly plate seal ring and sealing surface of seat simultaneously, phenomenon is squeezed without card, the pressure angle on sealing surface is made to be greater than friction angle, and sealing pair has the two-fold advantage of metal hard-sealing and elastic packing, anticorrosive, wear-resistant, high temperature resistant, long service life; In addition, described butterfly plate is airflow design, has intensity high, and area of passage is large, and flow resistance is little, saves the energy; The utility model install time by MEDIA FLOW to restriction, also not by the impact of spatial position, can install in any direction, be applicable to adjustment or the open and close of bi-directional medium flux and flow direction on pipeline, thus formation pipeline medium flows to bidirectional bearing, two way sealed, zero leakage.
The beneficial effects of the utility model are: have operation light, good airproof performance, long service life, not by the advantage of media flow aspect effect.
Accompanying drawing explanation
Below by with reference to accompanying drawing describe the utility model particularly in conjunction with example, advantage of the present utility model and implementation will be more obvious, wherein content shown in accompanying drawing is only for explanation explanation of the present utility model, and do not form restriction of going up in all senses of the present utility model, in the accompanying drawings:
Fig. 1 is the utility model structural representation
Fig. 2 is the utility model partial structurtes schematic diagram
Fig. 3 is the utility model A-A butterfly plate sectional drawing
In figure:
1, valve body 2, valve rod 3, butterfly plate
4, filler 5, seal ring 6, valve seat
7, Upper shaft sleeve 8, Lower shaft sleeve 9, gland
10, lower end cap
Embodiment
As shown in Figure 1 to Figure 3, a kind of bidirectional sealed butterfly valve of the utility model, comprises valve body 1, valve rod 2, butterfly plate 3, filler 4, seal ring 5 and valve seat 6, is provided with butterfly plate 3 in described valve body 1, described butterfly plate 3 is fixed on valve rod 2, and described valve rod 2 runs through valve body 1 from top to bottom; It is peripheral that described seal ring 5 is installed in butterfly plate 3, contacts with the valve seat 6 outside butterfly plate 3; Described butterfly plate 3 is in eccentric setting, and described valve seat 6 cross section is toroidal, and the seal ring 5 of its sealing inclined-plane place and butterfly plate 3 periphery forms sealing pair; Be provided with Upper shaft sleeve 7 between described valve rod 2 upper end and valve body 1, between described valve rod 2 lower end and valve body 1, be provided with Lower shaft sleeve 8; Filler 4 is filled with on the upside of described Upper shaft sleeve 7; Described butterfly plate 3 is the oval butterfly plate of eccentric oblique cone; Described filler 4 is provided with gland 9; Described valve body 1 bottom is provided with lower end cap 10; Described butterfly plate 3 is fixed by straight pin with valve rod 2.
The working procedure of this example: during work, various drive unit (can for manually, worm gear, pneumatic, electronic) band ovable valve stem 3 rotates, by driving butterfly plate 3 to rotate, making butterfly plate 3 be in unlatching or closed condition, thus reaching the object being communicated with or blocking cut-off; When this butterfly valve cuts out, butterfly plate 3 sealing surface is close to valve body 1 with center displacement, and seal ring 5 carries out crush seal, and seal ring 5 pressurized is even, and sealability is reliable; Because when opening, butterfly plate 3 need turn over a very little angle, valve seat 6 sealing surface has just departed from seal ring 5, just decreases the friction between sealing surface, makes valve durable in use.
Above embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model scope change and improve, and all should still belong within this patent covering scope.
Claims (5)
1. a bidirectional sealed butterfly valve, is characterized in that: comprise valve body, valve rod, butterfly plate, filler, seal ring and valve seat, is provided with butterfly plate in described valve body, and described butterfly plate is fixed on valve rod, and described valve rod runs through valve body from top to bottom; Described seal ring is installed in butterfly plate periphery, contacts with the valve seat outside butterfly plate; Described butterfly plate is eccentric setting, and described valve seat cross section is toroidal, and the seal ring of its sealing inclined-plane place and butterfly plate periphery forms sealing pair; Be provided with Upper shaft sleeve between described valve rod upper end and valve body, between described valve rod lower end and valve body, be provided with Lower shaft sleeve; Filler is filled with on the upside of described Upper shaft sleeve.
2. bidirectional sealed butterfly valve according to claim 1, is characterized in that: described butterfly plate is the oval butterfly plate of eccentric oblique cone.
3. bidirectional sealed butterfly valve according to claim 1, is characterized in that: described filler is provided with gland.
4. bidirectional sealed butterfly valve according to claim 1, is characterized in that: described valve body bottom is provided with lower end cap.
5. bidirectional sealed butterfly valve according to claim 1, is characterized in that: described butterfly plate and valve rod are fixed by straight pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520057060.7U CN204493747U (en) | 2015-01-28 | 2015-01-28 | A kind of bidirectional sealed butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520057060.7U CN204493747U (en) | 2015-01-28 | 2015-01-28 | A kind of bidirectional sealed butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204493747U true CN204493747U (en) | 2015-07-22 |
Family
ID=53573066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520057060.7U Expired - Fee Related CN204493747U (en) | 2015-01-28 | 2015-01-28 | A kind of bidirectional sealed butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204493747U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439064A (en) * | 2016-12-07 | 2017-02-22 | 无锡优耐特净化装备有限公司 | Three-eccentric manual butterfly valve for turbine |
| CN114922991A (en) * | 2022-07-19 | 2022-08-19 | 太仓百川水处理设备有限公司 | High-sealing-performance double-blade butterfly valve for sewage conveying pipeline |
-
2015
- 2015-01-28 CN CN201520057060.7U patent/CN204493747U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439064A (en) * | 2016-12-07 | 2017-02-22 | 无锡优耐特净化装备有限公司 | Three-eccentric manual butterfly valve for turbine |
| CN114922991A (en) * | 2022-07-19 | 2022-08-19 | 太仓百川水处理设备有限公司 | High-sealing-performance double-blade butterfly valve for sewage conveying pipeline |
| CN114922991B (en) * | 2022-07-19 | 2022-10-11 | 太仓百川水处理设备有限公司 | High-sealing-performance double-blade butterfly valve for sewage conveying pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20190128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |