CN204852378U - Two butterfly plates seal butterfly valve - Google Patents
Two butterfly plates seal butterfly valve Download PDFInfo
- Publication number
- CN204852378U CN204852378U CN201520487743.6U CN201520487743U CN204852378U CN 204852378 U CN204852378 U CN 204852378U CN 201520487743 U CN201520487743 U CN 201520487743U CN 204852378 U CN204852378 U CN 204852378U
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- CN
- China
- Prior art keywords
- valve
- valve rod
- butterfly
- butterfly plate
- valve body
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a butterfly valve, in particular to two butterfly plates seal butterfly valve. The utility model provides a following technical scheme: a two butterfly plates seal butterfly valve, which comprises a valve body, a valve cove, be equipped with the medium admission passage on the valve body, medium outflow passageway and connection chamber, it is equipped with rotatable butterfly plate to connect the intracavity, be equipped with driving piece and valve rod on the valve gap, be equipped with the disk seat that the outer peripheral face is sealed with the butterfly plate on the valve body, the valve rod is including upper valve rod and lower valve rod with the driving piece linkage, the butterfly plate includes two, two butterfly plates set up towards medium admission passage and medium outflow passageway respectively, be equipped with the grafting cover that cup joints with upper valve rod and lower valve rod on two butterfly plates respectively, the lower valve rod is connected with the valve body through the sealed piece of dismantling, the sealed dismantlement is equipped with removable installation sleeve between piece and the lower valve rod, be equipped with the sealed piece of detachable stereoplasm between two butterfly plates and the disk seat. Adopt above -mentioned technical scheme, provide a convenient assembling, simple structure, two butterfly plates seal butterfly valve that the leakproofness is good.
Description
Technical field
The utility model relates to a kind of butterfly valve, particularly a kind of two butterfly plate seal butterfly valve.
Background technique
Butterfly valve is Flap valve again, is the simple modulating valve of a kind of structure, also can be used for the switch control rule of low pressure pipeline medium simultaneously.Traditional butterfly valve is primarily of valve body, the valve gap be connected with valve body, valve body is provided with the connection chamber of medium inlet passage, medium flow pass and connecting media inlet passage and medium flow pass, rotatable butterfly plate is provided with in connection chamber, valve gap is provided with actuator, be provided with one end between actuator and butterfly plate and actuator is connected, the valve rod that the other end and butterfly plate are connected, valve body is provided with the valve seat sealed with the outer circumferential face of butterfly plate.In installation process, after needing valve rod and butterfly plate to implement to be connected, just valve rod and butterfly plate can be mounted in valve body simultaneously, not only installation process is comparatively loaded down with trivial details, and when there is small deviation in the machining accuracy of valve body, then valve rod cannot be implemented to install with valve body, and this valve body then can as waste disposal, higher to the requirement on machining accuracy of valve body, and the butterfly plate of transmission only has once sealing, when after the wearing and tearing of this butterfly plate, valve body then there will be leakage, and sealing cannot be protected.
Summary of the invention
For the deficiency that prior art exists, the utility model provides that a kind of easy to assembly, structure is simple, two butterfly plate seal butterfly valves of good airproof performance.
For achieving the above object, the utility model provides following technological scheme: a kind of two butterfly plate seal butterfly valve, include valve body, the valve gap be connected with valve body, valve body is provided with medium inlet passage, the connection chamber of medium flow pass and connecting media inlet passage and medium flow pass, rotatable butterfly plate is provided with in connection chamber, valve gap is provided with actuator, one end is provided with and actuator is connected between actuator and butterfly plate, the valve rod that the other end and butterfly plate are connected, valve body is provided with the valve seat sealed with the outer circumferential face of butterfly plate, it is characterized in that: described valve rod includes the upper valve rod that links with actuator and arranges with upper valve rod concentric and the lower valve rod hinged with valve body, described butterfly plate comprises two pieces, double butterfly plate flows out channel setting towards medium inlet passage and medium respectively, and double butterfly plate is respectively equipped with the grafting cover be socketed with upper valve rod and lower valve rod, described lower valve rod is connected with valve body by sealing demolition part, removable installing sleeve is provided with between sealing demolition part and lower valve rod, dismountable hard sealing block is provided with between double butterfly plate and valve seat.
Adopt technique scheme, by arranging two pieces of butterfly plates in the connection chamber of valve body, two way sealed can be implemented to valve body, when wherein one piece of butterfly plate occurs that wearing and tearing cause leaking, another block butterfly plate still can play seal action, can effectively prevent valve body from occurring leaking and cannot normally using; Valve rod is upper valve rod and lower valve rod, after arranging so just with the installation of butterfly plate, simultaneously, on valve rod and valve body, the machining accuracy of mounting hole is without the need to too high, installing sleeve by changing different size regulates the mounting point between lower valve rod and valve body, highly versatile, is convenient to processing, and can reduces cost of production; On butterfly plate, the setting of the detachable hard sealing block changed can prevent butterfly plate from directly contacting with valve seat, thus extends the working life of butterfly plate.
The utility model is set to further: body base offers the mounting hole with connection chamber conducting, described sealing demolition part includes and may extend in connection chamber and be the sealing stud of screw thread rotation with mounting hole, sealing stud is provided with towards one end of connection chamber the installation cavity plugged for lower valve rod, and described installing sleeve is sheathed on the outer circumferential face of lower valve rod.
Adopt technique scheme, it is simple that structure is set like this, easy for installation.
The utility model is further set to: have installing space between upper valve rod and lower valve rod, fills out and be provided with flexible graphite sealing block in installing space.
Adopt technique scheme, arrange like this and the sealing between double butterfly plate is further ensured.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Embodiment
The two butterfly plate seal butterfly valve of one as shown in Figure 1, include valve body 1, the valve gap 2 be connected with valve body 1, valve body 1 is provided with medium inlet passage 11, the connection chamber 13 of medium flow pass 12 and connecting media inlet passage 11 and medium flow pass 12, rotatable butterfly plate 3 is provided with in connection chamber 13, valve gap 2 is provided with actuator 4, actuator 4 can be motor, also can be handwheel, one end is provided with and actuator 4 is connected between actuator 4 and butterfly plate 3, the valve rod 5 that the other end and butterfly plate 3 are connected, valve body 1 is provided with the valve seat 6 sealed with the outer circumferential face of butterfly plate 3, valve rod 5 includes the upper valve rod 51 that links with actuator 4 and arranges with upper valve rod 51 concentric and the lower valve rod 52 hinged with valve body 1, butterfly plate 3 comprises two pieces, double butterfly plate 3 is arranged towards medium inlet passage 11 and medium flow pass 12 respectively, and double butterfly plate 3 is respectively equipped with the grafting be socketed with upper valve rod 51 and lower valve rod 52 and overlaps 31, lower valve rod 52 is connected with valve body 1 by sealing demolition part 7, removable installing sleeve 8 is provided with between sealing demolition part 7 and lower valve rod 52, dismountable hard sealing block 32 is provided with between double butterfly plate 3 and valve seat 6.In such scheme, by arranging two pieces of butterfly plates 3 in the connection chamber 13 of valve body 1, two way sealed can be implemented to valve body 1, when wherein one piece of butterfly plate 3 occurs that wearing and tearing cause leaking, another block butterfly plate 3 still can play seal action, can effectively prevent valve body 1 from occurring leaking and cannot normally using; Valve rod 5 is upper valve rod 51 and lower valve rod 52, after arranging so just with the installation of butterfly plate 3, simultaneously, on valve rod 5 and valve body 1, the machining accuracy of mounting hole is without the need to too high, installing sleeve 8 by changing different size regulates the mounting point between lower valve rod 52 and valve body 1, highly versatile, is convenient to processing, and can reduces cost of production; On butterfly plate 3, the setting of the detachable hard sealing block 32 changed can prevent butterfly plate 3 from directly contacting with valve seat 6, thus extends the working life of butterfly plate 3.
In the utility model embodiment, for the ease of installation and the replacing of lower valve rod 5, the mounting hole 14 with connection chamber 13 conducting is offered bottom valve body 1, sealing demolition part 7 include may extend in connection chamber 13 and with the sealing stud 71 of mounting hole 14 in screw thread rotation, sealing stud 71 is provided with towards one end of connection chamber 13 installation cavity 72 plugged for lower valve rod 51, and installing sleeve 8 is sheathed on the outer circumferential face of lower valve rod 52.Installing sleeve 8 can be implemented to change according to the size of mounting hole 14, thus without the need to implementing to change to lower valve rod, be not only convenient to processing, and structure is simple.
In order to ensure the sealing between upper valve rod 51 and lower valve rod 52, between upper valve rod 51 and lower valve rod 52, there is installing space, filling out in installing space and being provided with flexible graphite sealing block 9.
Claims (3)
1. a two butterfly plate seal butterfly valve, include valve body, the valve gap be connected with valve body, valve body is provided with medium inlet passage, the connection chamber of medium flow pass and connecting media inlet passage and medium flow pass, rotatable butterfly plate is provided with in connection chamber, valve gap is provided with actuator, one end is provided with and actuator is connected between actuator and butterfly plate, the valve rod that the other end and butterfly plate are connected, valve body is provided with the valve seat sealed with the outer circumferential face of butterfly plate, it is characterized in that: described valve rod includes the upper valve rod that links with actuator and arranges with upper valve rod concentric and the lower valve rod hinged with valve body, described butterfly plate comprises two pieces, double butterfly plate flows out channel setting towards medium inlet passage and medium respectively, and double butterfly plate is respectively equipped with the grafting cover be socketed with upper valve rod and lower valve rod, described lower valve rod is connected with valve body by sealing demolition part, removable installing sleeve is provided with between sealing demolition part and lower valve rod, dismountable hard sealing block is provided with between double butterfly plate and valve seat.
2. according to claim 1 pair of butterfly plate seal butterfly valve, it is characterized in that: described body base offers the mounting hole with connection chamber conducting, described sealing demolition part includes and may extend in connection chamber and be the sealing stud of screw thread rotation with mounting hole, sealing stud is provided with towards one end of connection chamber the installation cavity plugged for lower valve rod, and described installing sleeve is sheathed on the outer circumferential face of lower valve rod.
3. according to claim 1 and 2 pair of butterfly plate seal butterfly valve, is characterized in that: have installing space between described upper valve rod and lower valve rod, fills out and be provided with flexible graphite sealing block in installing space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520487743.6U CN204852378U (en) | 2015-06-30 | 2015-06-30 | Two butterfly plates seal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520487743.6U CN204852378U (en) | 2015-06-30 | 2015-06-30 | Two butterfly plates seal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204852378U true CN204852378U (en) | 2015-12-09 |
Family
ID=54742924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520487743.6U Expired - Fee Related CN204852378U (en) | 2015-06-30 | 2015-06-30 | Two butterfly plates seal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204852378U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402431A (en) * | 2016-11-22 | 2017-02-15 | 淮北智淮科技有限公司 | Double-channel butterfly valve |
-
2015
- 2015-06-30 CN CN201520487743.6U patent/CN204852378U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402431A (en) * | 2016-11-22 | 2017-02-15 | 淮北智淮科技有限公司 | Double-channel butterfly valve |
| CN106402431B (en) * | 2016-11-22 | 2018-05-08 | 上海沪工阀门厂(集团)有限公司 | A kind of double-channel butterfly valve valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20160630 |