CN204647356U - The valve board structure of butterfly valve - Google Patents
The valve board structure of butterfly valve Download PDFInfo
- Publication number
- CN204647356U CN204647356U CN201520281455.5U CN201520281455U CN204647356U CN 204647356 U CN204647356 U CN 204647356U CN 201520281455 U CN201520281455 U CN 201520281455U CN 204647356 U CN204647356 U CN 204647356U
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- valve
- central layer
- board structure
- sealing ring
- central
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Abstract
The utility model discloses a kind of valve board structure of butterfly valve, comprise central elastic central layer, central elastic central layer periphery arranges the rigid sealing ring be connected with valve rod axle bed.The utility model is rational in infrastructure, and the strain that on elasticity central layer, medium active force produces is not delivered to rigid sealing ring; As long as and resilient core plate thickness can bear the shearing stress of medium generation, weight declines to a great extent, material saving.
Description
Technical field
The utility model relates to a kind of valve board structure of butterfly valve.
Background technique
The valve plate of tradition butterfly valve is whole is rigid body form, and for the butterfly valve of high-pressure large-caliber, the power that medium acts on butterfly plate surface is very large, to whole be that the valve plate amount of deformation of rigid body form is large, cause reverse sealing difficulty, the seal pressure of forward is excessive, opens and closes moment large.
Summary of the invention
The purpose of this utility model is to provide a kind of rational in infrastructure, the valve board structure of the butterfly valve of favorable working performance.
Technical solution of the present utility model is:
A valve board structure for butterfly valve, is characterized in that: comprise central elastic central layer, and central elastic central layer periphery arranges the rigid sealing ring be connected with valve rod axle bed.
The thickness of central elastic central layer is 1/3 ~ 1/5 of rigid seal ring thickness.
Central elastic central layer and rigid sealing ring connection part are form of grooves.
The utility model is rational in infrastructure, and the strain that on elasticity central layer, medium active force produces is not delivered to rigid sealing ring; As long as and resilient core plate thickness can bear the shearing stress of medium generation, weight declines to a great extent, material saving.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
A valve board structure for butterfly valve, comprises central elastic central layer 1, and central elastic central layer periphery arranges the rigid sealing ring 2 be connected with the axle bed 4 of valve rod 3.The thickness of central elastic central layer is 1/3 ~ 1/5 of rigid seal ring thickness.
Central elastic central layer and rigid sealing ring connection part are form of grooves, can cut off the transmission of power.
Claims (3)
1. a valve board structure for butterfly valve, is characterized in that: comprise central elastic central layer, and central elastic central layer periphery arranges the rigid sealing ring be connected with valve rod axle bed.
2. the valve board structure of butterfly valve according to claim 1, is characterized in that: the thickness of central elastic central layer is 1/3 ~ 1/5 of rigid seal ring thickness.
3. the valve board structure of butterfly valve according to claim 1, is characterized in that: central elastic central layer and rigid sealing ring connection part are form of grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520281455.5U CN204647356U (en) | 2015-05-05 | 2015-05-05 | The valve board structure of butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520281455.5U CN204647356U (en) | 2015-05-05 | 2015-05-05 | The valve board structure of butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204647356U true CN204647356U (en) | 2015-09-16 |
Family
ID=54100110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520281455.5U Active CN204647356U (en) | 2015-05-05 | 2015-05-05 | The valve board structure of butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204647356U (en) |
-
2015
- 2015-05-05 CN CN201520281455.5U patent/CN204647356U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |