CN205401741U - Eccentric butterfly valve - Google Patents
Eccentric butterfly valve Download PDFInfo
- Publication number
- CN205401741U CN205401741U CN201521019252.5U CN201521019252U CN205401741U CN 205401741 U CN205401741 U CN 205401741U CN 201521019252 U CN201521019252 U CN 201521019252U CN 205401741 U CN205401741 U CN 205401741U
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- China
- Prior art keywords
- valve
- butterfly
- eccentric
- valve rod
- dish plate
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- Expired - Fee Related
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Abstract
The utility model discloses an eccentric butterfly valve, eccentric butterfly valve includes: eccentric butterfly valve includes: valve rod, dish board, valve body, the valve rod passes the runner of valve body and installs on the valve body, install the dish board on the valve rod, the bottom of valve rod is equipped with turbine guide bearing, the mid -mounting of valve rod has the dish board, the dish board is located in the runner, the dish board includes mounting hole and convex body, the mounting hole of locating on the dish board is installed on the valve rod, the vertical centerline of the axial lead of mounting hole, the convex body of dish board and the central line non -intersect of valve runner, the shape of convex body is circular, the shape of overlooking of the sealed face of convex body is convex. The utility model discloses a technique aim at provides the longer eccentric butterfly valve of life of littleer, sealed more reliable, the sealing member of a reliability moment higher, opening - and - shutting valve.
Description
Technical field
This utility model relates to valve field, particularly a kind of eccentric-butterfly-valve.
Background technology
In valve field, butterfly valve is to apply one of valve widely, and butterfly valve can be used for controlling the flowing of all kinds fluids such as sky gas and water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.Pipeline acts primarily as cut-out and throttling action.Butterfly valve opening and closing element is a discoidal butterfly plate, rotates around the axis of himself in valve body, thus reaching the purpose opening and closing or regulating.Butterfly valve has that simple in construction, volume be little, lightweight, material consumption is economized, installation dimension is little, and switch is rapid, 90 ° of reciprocating rotatings, the features such as driving moment is little, for blocking, connect, regulate the medium in pipeline, there is good fluid handling properties and close sealing property.
Along with the requirement of industrial level is improved constantly, under elevated pressure conditions, requirement amount of leakage is considerably less, even require to reach zero leakage, service life to butterfly valve also require that more and more higher, good butterfly valve not only favorable sealing property, and long service life, the maintenance number of times making production line is few, production in hgher efficiency.
Eccentric-butterfly-valve belongs to moment of torsion and seals, and when the switch of valve, generally seals structure and easily weares and teares, and even stuck appearance causes leakage or other security incident.
Utility model content
For the deficiency existed in above-mentioned technology, technical purpose of the present utility model is in that to provide that a kind of reliability moment higher, opening and closing valve is less, it is more reliable to seal, the eccentric-butterfly-valve of the longer service life of sealing member, and this eccentric-butterfly-valve can improve the seriality of the safety of production, production.
This utility model is achieved through the following technical solutions:
A kind of eccentric-butterfly-valve, described eccentric-butterfly-valve includes: valve rod, dish plate, valve body, described valve rod is arranged on valve body through the runner of valve body, described valve rod is provided with dish plate, the bottom of described valve rod is provided with water pilot bearing, the middle part of described valve rod is provided with dish plate, described dish plate is located in runner, described dish plate includes installing hole and convex body, the described installing hole being located on dish plate is arranged on valve rod, the axial line of described installing hole, the vertical center line of the convex body of dish plate is non-intersect with the centrage of valve flowing channel, described convex body generally circular in shape, the plan view shape of the sealing surface of described convex body is circular arc.
In technique scheme, it is provided with water pilot bearing by the bottom at valve rod, the rotation making valve rod is more flexible lightly, switch moment is less, valve rod can be provided restraining forces radially by water pilot bearing simultaneously, by the installing hole of butterfly plate and butterfly plate are separated design, the axial line of butterfly plate is separated with the axial line of valve rod, by the axial line of installing hole, the vertical center line of the convex body of dish plate is non-intersect with the centrage of valve flowing channel, the switch moment making valve is less, reduce abrasion and the extruding of butterfly plate and sealing member, by being that circular arc makes when controlled valve by the plan view shape of the sealing surface of convex body, compared to common butterfly valve, butterfly plate is less with the abrasion of sealing member.
Further, described valve body is provided with retainer ring and screwed hole, the end face of described retainer ring and valve body contact is provided with cannelure, described retainer ring is provided with protruding arc annulus near the inwall of dish plate, described retainer ring is provided with counter sink, and the screwed hole on described valve body is fixed by screw with the counter sink in retainer ring.
In technique scheme; by being provided with retainer ring and screw on valve body; make when installing sealing member convenient; make when opening valve by being provided with the arc annulus of projection at the inwall of cannelure; the sealing member being arranged in valve body will not directly be washed away by medium; protecting sealing member, the flowing also making medium is more smooth and easy, will not form turbulent flow.
Further, described water pilot bearing is fixedly mounted in valve body, and the material of described water pilot bearing is non-metallic material.
Further, being provided with seal groove in described valve body, the plan view shape of described seal groove is circular arc, and the cross sectional shape of described seal groove is rectangle, is provided with groups of springs and sealing ring in described seal groove.
In technique scheme, by being circular arc by the plan view shape of seal groove so that the sealing ring of installation can cooperatively form sealing surface with valve plate, the seal groove of rectangle is more conducive to install groups of springs.
Further, stating groups of springs and include internal ring, outer shroud and several springs, described spring is arranged between internal ring and outer shroud, described internal ring, outer shroud can bend in direction at the center line, the diameter of described outer shroud is fixed, and is equipped with contraction mouth in described, and described groups of springs cross section accounts for the 3/4 of seal groove cross section.
In technique scheme, be made up of internal ring, outer shroud and several springs by groups of springs is set to, and in be equipped with contraction mouth so that sealing of valve plate can be formed certain sealing pressure by groups of springs, keep the sealing effectiveness sealed, valve also can be made to avoid stuck performance to improve.
Further, the internal ring of described groups of springs being provided with sealing ring, the material of described sealing ring is fluorubber or nitrile rubber.
In technique scheme, owing to the good sealing effect of rubber seal, the groups of springs being provided with and the eccentric structure of valve can effectively slow down the friction of sealing ring so that the sealing effectiveness of whole valve is good, the repair time span of valve is also relatively big, and cost is relatively lower.
The beneficial effects of the utility model are:
1, by butterfly valve bias is designed so that the switch moment of valve is less, reduce butterfly plate and the abrasion of sealing member and extruding, improves the service life of valve, reduces the power that opening and closing valve consumes；
2, by being circular arc by the plan view shape of valve plate and seal groove so that the moment when opening and closing valve is less, less with the frictional force of the sealing member on valve body, more it can be avoided that valve plate is stuck；
3, by being externally provided with groups of springs at sealing ring so that the power size that valve plate acts on sealing ring is variable, it is to avoid directly sealing ring is cut off when valve plate blocks, improve the reliability of valve and the safety of production.
Accompanying drawing explanation
Fig. 1 is the structural representation of utility model.
Labelling in figure: 1 be butterfly plate, 2 be valve body, 3 be valve rod, 4 be sealing ring, 5 be groups of springs, 6 be retainer ring, 7 for water pilot bearing.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in detail.
A kind of eccentric-butterfly-valve as shown in Figure 1, including butterfly plate 1, valve body 2, valve rod 3, sealing ring 4, groups of springs 5, retainer ring 6, water pilot bearing 7, described valve rod 3 is arranged on valve body 2 through the runner of valve body 2, described valve rod 3 is provided with dish plate 1, the bottom of described valve rod 3 is provided with water pilot bearing 7, the middle part of described valve rod 3 is provided with dish plate 1, described dish plate 1 is located in runner, described dish plate 1 includes installing hole and convex body, the described installing hole being located on dish plate 1 is arranged on valve rod 3, the axial line of described installing hole, the vertical center line of the convex body of dish plate 1 is non-intersect with the centrage of valve flowing channel, described convex body generally circular in shape, the plan view shape of the sealing surface of described convex body is circular arc；
Described valve body 2 is provided with retainer ring 6 and screwed hole, the end face that described retainer ring 6 contacts with valve body 2 is provided with cannelure, described retainer ring 6 is provided with protruding arc annulus near the inwall of dish plate 1, described retainer ring 6 is provided with counter sink, and the screwed hole on described valve body 2 is fixed by screw with the counter sink in retainer ring 6；Described water pilot bearing 7 is fixedly mounted in valve body 2, and the material of described water pilot bearing 7 is non-metallic material, and water pilot bearing is chosen as F102 bearing；Being provided with seal groove in described valve body 2, the plan view shape of described seal groove is circular arc, and the cross sectional shape of described seal groove is rectangle, is provided with groups of springs 5 and sealing ring 4 in described seal groove；Described groups of springs 5 includes internal ring, outer shroud and several springs, described spring is arranged between internal ring and outer shroud, and described internal ring, outer shroud can bend in direction at the center line, and the diameter of described outer shroud is fixed, being equipped with contraction mouth in described, described groups of springs 5 cross section accounts for the 3/4 of seal groove cross section；Being provided with sealing ring 4 on the internal ring of described groups of springs 5, the material of described sealing ring is fluorubber.
This eccentric-butterfly-valve rotates by manipulating valve rod 3, drive the butterfly plate 1 being located on valve rod 3, butterfly plate 1 rotates and the convex body of butterfly plate is contacted with sealing ring 4, owing to convex body and sealing ring 4 plan view shape are set to circular arc, axial line to butterfly plate installing hole, the eccentric design disjoint with the centrage of valve flowing channel of the vertical center line of the convex body of dish plate 1, make to open with butterfly plate 1 when closing valve, the extruding of sealing ring is less, rub less, butterfly plate 1 can depart from rapidly sealing ring 4, hard extruding will not be formed, reduce moment and the abrasion of on/off valve, improve the service life of sealing ring 4, reduce the power consumption of opening and closing valve；When on/off valve, sealing ring 4 is extruded by butterfly plate 1, and the groups of springs 5 being located at outside sealing ring 4 can be expanded and contraction, avoids the impaired of sealing ring 4 further, improves the service life using sealing ring 4, it is to avoid butterfly valve is stuck, and adds the safety of butterfly valve.
Claims (6)
1. an eccentric-butterfly-valve, described eccentric-butterfly-valve includes: valve rod (3), dish plate (1), valve body (2), described valve rod (3) is arranged on valve body (2) through the runner of valve body (2), described valve rod (3) is provided with dish plate (1), it is characterized in that, the bottom of described valve rod (3) is provided with water pilot bearing (7), the middle part of described valve rod (3) is provided with dish plate (1), described dish plate (1) is located in runner, described dish plate (1) includes installing hole and convex body, the described installing hole being located on dish plate (1) is arranged on valve rod (3), the axial line of described installing hole, the vertical center line of the convex body of dish plate (1) is non-intersect with the centrage of valve flowing channel, described convex body generally circular in shape, the plan view shape of the sealing surface of described convex body is circular arc.
2. eccentric-butterfly-valve according to claim 1, it is characterized in that, described valve body (2) is provided with retainer ring (6) and screwed hole, the end face that described retainer ring (6) contacts with valve body (2) is provided with cannelure, described retainer ring (6) is provided with protruding arc annulus near the inwall of dish plate (1), described retainer ring (6) is provided with counter sink, and the screwed hole on described valve body (2) is fixed by screw with the counter sink in retainer ring (6).
3. eccentric-butterfly-valve according to claim 2, it is characterised in that described water pilot bearing (7) is fixedly mounted in valve body (2), and the material of described water pilot bearing (7) is non-metallic material.
4. eccentric-butterfly-valve according to claim 3, it is characterized in that, being provided with seal groove in described valve body (2), the plan view shape of described seal groove is circular arc, the cross sectional shape of described seal groove is rectangle, is provided with groups of springs (5) and sealing ring (4) in described seal groove.
5. eccentric-butterfly-valve according to claim 4, it is characterized in that, described groups of springs (5) includes internal ring, outer shroud and several springs, described spring is arranged between internal ring and outer shroud, described internal ring, outer shroud can bend in direction at the center line, the diameter of described outer shroud is fixed, and is equipped with contraction mouth in described, and described groups of springs (5) cross section accounts for the 3/4 of seal groove cross section.
6. eccentric-butterfly-valve according to claim 5, it is characterised in that be provided with sealing ring (4) on the internal ring of described groups of springs (5), the material of described sealing ring is fluorubber or nitrile rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521019252.5U CN205401741U (en) | 2015-12-10 | 2015-12-10 | Eccentric butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521019252.5U CN205401741U (en) | 2015-12-10 | 2015-12-10 | Eccentric butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205401741U true CN205401741U (en) | 2016-07-27 |
Family
ID=56450442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521019252.5U Expired - Fee Related CN205401741U (en) | 2015-12-10 | 2015-12-10 | Eccentric butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205401741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013688A (en) * | 2017-06-13 | 2017-08-04 | 石家庄三环阀门股份有限公司 | The hollow butterfly valve plate of biconvex |
-
2015
- 2015-12-10 CN CN201521019252.5U patent/CN205401741U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013688A (en) * | 2017-06-13 | 2017-08-04 | 石家庄三环阀门股份有限公司 | The hollow butterfly valve plate of biconvex |
| CN107013688B (en) * | 2017-06-13 | 2023-03-10 | 石家庄三环阀门股份有限公司 | Double convex surface hollow butterfly valve plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huang Zuoying Inventor after: Hu Sheng Inventor before: Li Yan |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170523 Address after: 201200, No. 6999 Chuansha Road, Pudong New Area District, Shanghai, 13 blocks, 18A blocks, 18B buildings, A Road Patentee after: Marinetec Development (Shanghai) Ltd. Address before: 610000 Chengdu City, Wuhou District Province, the South Ring Road, No. two, No. 1, No. 1, floor 31, No. 5 Patentee before: CHENGDU DESHANNENG TECHNOLOGY CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160727 Termination date: 20191210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |