CN219866324U - Sealing structure of hard sealing butterfly valve - Google Patents
Sealing structure of hard sealing butterfly valve Download PDFInfo
- Publication number
- CN219866324U CN219866324U CN202321703035.2U CN202321703035U CN219866324U CN 219866324 U CN219866324 U CN 219866324U CN 202321703035 U CN202321703035 U CN 202321703035U CN 219866324 U CN219866324 U CN 219866324U
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- China
- Prior art keywords
- sealing
- valve body
- valve
- dish board
- butterfly valve
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- 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.)
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 65
- 230000000694 effects Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model provides a seal structure of hard seal butterfly valve, includes the valve body and locates the dish board in the horizontal shaft hole of valve body to dish board and valve body normal running fit, the dish board is equipped with the sealing washer through clamp plate fixed mounting, be equipped with in the horizontal shaft hole of valve body with the sealing washer complex sealing valve seat on the dish board, sealing valve seat has the inclined cone, the sealing washer arches towards inclined cone direction and forms the sealing surface, sealing surface and inclined cone butt realization sealing contact. The utility model has the beneficial effects that: the sealing surface on the periphery of the sealing ring is changed into an arc surface from the original inclined conical surface, the contact position of the sealing ring and the valve seat is changed into linear contact from surface contact, and the sealing effect of the butterfly valve is greatly improved.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a sealing structure of a hard sealing butterfly valve.
Background
The butterfly valve is also called as a flap valve, and is a simple-structure regulating valve, and can be used for the on-off control of low-pressure pipeline medium. At present, butterfly valve among the prior art, its sealing disk seat and the sealing washer on the dish board are the oblique conical surface, and the inclined plane forms face seal effect to the inclined plane when sealed, like patent number: the inclined conical surface hard sealing butterfly valve disclosed in CN201335157Y has poor sealing effect due to the influence of machining precision, and the structural form of the butterfly valve cannot implement larger forced sealing force like a wedge gate valve, so that the surface sealing surfaces are not completely contacted with each other, the contact is not tight, and the sealing effect cannot meet the zero leakage requirement.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a sealing structure of a hard sealing butterfly valve.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a seal structure of hard seal butterfly valve, includes the valve body and locates the dish board in the horizontal shaft hole of valve body to dish board and valve body normal running fit, the dish board is equipped with the sealing washer through clamp plate fixed mounting, be equipped with in the horizontal shaft hole of valve body with the sealing washer complex sealing valve seat on the dish board, sealing valve seat has the inclined cone, the sealing washer arches towards inclined cone direction and forms the sealing surface, sealing surface and inclined cone butt realization sealing contact.
The sealing surface is arc-shaped.
The arc of the sealing surface is 50 degrees.
The utility model has the beneficial effects that: the sealing surface on the periphery of the sealing ring is changed into an arc surface from the original inclined conical surface, the contact position of the sealing ring and the valve seat is changed into linear contact from surface contact, and the sealing effect of the butterfly valve is greatly improved.
Drawings
FIG. 1 is a cross-sectional view of the structure of the present utility model;
fig. 2 is a schematic structural diagram of a portion a in fig. 1.
Detailed Description
As shown in fig. 1-2, a sealing structure of a hard seal butterfly valve comprises a valve body 10 and a disc plate 20 arranged in a transverse shaft hole of the valve body 10, wherein the disc plate 20 is in rotating fit with the valve body 10, an operating device 30 is arranged on the valve body 10, the disc plate 20 is connected with the operating device 30 through a valve rod 40, the operating device 30 controls the disc plate 20 to rotate, a sealing ring 21 is fixedly assembled on the disc plate 20 through a pressing plate, a sealing valve seat 11 matched with the sealing ring 21 on the disc plate 20 is arranged in the transverse shaft hole of the valve body 10, the sealing valve seat 11 is provided with an inclined conical surface 111, the sealing ring 21 is arched towards the direction of the inclined conical surface 111 to form a sealing surface 211, in the embodiment, the sealing surface 211 is in arc-shaped, the sealing surface 211 is in abutting contact with the inclined conical surface 111, and the sealing surface 211 is in abutting contact with the inclined conical surface 111 to form the sealing of the valve body 10 through the rotation of the disc plate 20 of a slotted hole of the operating device 30.
In this embodiment, the arc of the sealing surface 211 is 50 degrees.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be appreciated by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the utility model, and that simple modifications and substitutions by those skilled in the art are within the scope of the utility model without departing from the spirit and scope of the utility model.
Claims (3)
1. The utility model provides a seal structure of hard seal butterfly valve, includes the valve body and locates the dish board in the horizontal shaft hole of valve body to dish board and valve body normal running fit, the dish board has the sealing washer through clamp plate fixed mounting, is equipped with in the horizontal shaft hole of valve body with the sealing washer complex sealing valve seat on the dish board, its characterized in that: the sealing valve seat is provided with an inclined conical surface, the sealing ring is arched towards the direction of the inclined conical surface to form a sealing surface, and the sealing surface is abutted with the inclined conical surface to realize sealing contact.
2. The seal structure of a hard seal butterfly valve according to claim 1, wherein: the sealing surface is arc-shaped.
3. The sealing structure of a hard sealing butterfly valve according to claim 2, wherein: the arc of the sealing surface is 50 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321703035.2U CN219866324U (en) | 2023-07-01 | 2023-07-01 | Sealing structure of hard sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321703035.2U CN219866324U (en) | 2023-07-01 | 2023-07-01 | Sealing structure of hard sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219866324U true CN219866324U (en) | 2023-10-20 |
Family
ID=88346329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321703035.2U Active CN219866324U (en) | 2023-07-01 | 2023-07-01 | Sealing structure of hard sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219866324U (en) |
-
2023
- 2023-07-01 CN CN202321703035.2U patent/CN219866324U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |