CN207989768U - A kind of elastic conical surface valve base sealing structure of shut-off valve - Google Patents
A kind of elastic conical surface valve base sealing structure of shut-off valve Download PDFInfo
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- CN207989768U CN207989768U CN201721568732.6U CN201721568732U CN207989768U CN 207989768 U CN207989768 U CN 207989768U CN 201721568732 U CN201721568732 U CN 201721568732U CN 207989768 U CN207989768 U CN 207989768U
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- valve
- flap
- conical surface
- shut
- valve seat
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Abstract
The application belongs to sealing structure, and in particular to a kind of elastic conical surface valve base sealing structure of shut-off valve.A kind of shut-off valve elastic conical surface valve base sealing structure, including flap and valve seat, the part setting inclined-plane that wherein lowermost end of flap is contacted with valve seat.The remarkable result of the application is：Valve seal force effect can form a horizontal component and vertical stress component on the valve seat conical surface, and outstanding valve seat is formed can generate certain elastic deflection similar to suspended wall girder construction under the action of horizontal component.Similarly, valve seal force effect can also form a horizontal component on the flap conical surface, and the flap of middle section hollow out also forms the structure similar to overhanging beam, under the action of horizontal component, also will produce certain elastic deflection.The mismachining tolerance of this flexible deformation of valve seat and flap meeting compensating sealing surface bevel angle, to promote its sealing performance.
Description
Technical field
The application belongs to sealing structure, and in particular to a kind of elastic conical surface valve base sealing structure of shut-off valve.
Background technology
The valve base sealing form of shut-off valve has two kinds of flat seal and conical surface seal.
The shut-off valve of conical surface valve seat seal form, not due to sealing surface of seat cone angle and valve clack sealing surface cone angle work in-process
, always there is certain differential seat angle in the angle that may be remained exactly the same, this is just difficult to ensure valve base seal property.
Invention content
The purpose of the application is in view of the drawbacks of the prior art, to provide a kind of elastic conical surface valve base sealing knot of shut-off valve
Structure.
The technical solution of the application is：A kind of shut-off valve elastic conical surface valve base sealing structure, including flap and valve seat,
Inclined-plane is arranged in the part that the lowermost end of middle flap is contacted with valve seat.
The elastic conical surface valve base sealing structure of a kind of shut-off valve as described above, wherein setting and valve on the valve seat
The corresponding inclined-plane in valve inclined-plane.
The elastic conical surface valve base sealing structure of a kind of shut-off valve as described above, wherein the inclined-plane on the flap is
Annular, and more extend outwardly, it is more tilted to the axle center of flap, forms the shape of similar frustum.
The elastic conical surface valve base sealing structure of a kind of shut-off valve as described above, wherein the inclined-plane on the flap is
Elastic material.
A kind of elastic conical surface valve base sealing structure of shut-off valve as described above, wherein the taper type on the flap
Hollow out among the inclined-plane of shape.
The remarkable result of the application is：Valve seal force effect can form a horizontal component and vertical on the valve seat conical surface
Component, outstanding valve seat is formed can generate certain elasticity similar to suspended wall girder construction under the action of horizontal component
Amount of deflection.Similarly, valve seal force effect can also form a horizontal component on the flap conical surface, and the valve of middle section hollow out
Valve also forms the structure similar to overhanging beam, under the action of horizontal component, also will produce certain elastic deflection.Valve seat
The mismachining tolerance that compensating sealing surface bevel angle is understood with this flexible deformation of flap, to promote its sealing performance.
Description of the drawings
Fig. 1 elasticity conical surface valve base sealing structures.
In figure：1, flap；2, valve seat.
Specific implementation mode
The application is described further below in conjunction with the accompanying drawings：
As shown in Fig. 1, the elastic conical surface valve base sealing structure of a kind of shut-off valve, using the bullet of outstanding conical surface seal
Property valve seat, and using middle section hollow out conical surface seal Elastic valve clack.
Realize that the technical characterstic of the present invention has：
1. the elastic seat of outstanding conical surface seal
Outstanding valve seat, which is formed, is similar to suspended wall girder construction, and valve seal force effect can form one on the valve seat conical surface
Horizontal component, under the action of horizontal component, outstanding valve seat can generate certain elastic deflection.
2. the Elastic valve clack of the conical surface seal of middle section hollow out
The flap of middle section hollow out forms the structure similar to overhanging beam, the meeting on the flap conical surface of valve seal force effect
A horizontal component is formed, under the action of horizontal component, the flap of middle section hollow out will produce certain elastic deflection.
Claims (3)
1. a kind of elastic conical surface valve base sealing structure of shut-off valve, it is characterised in that：Including flap (1) and valve seat (2), wherein valve
Inclined-plane is arranged in the part that the lowermost end of valve (1) is contacted with valve seat (2)；
Inclined-plane corresponding with flap (1) inclined-plane is set on the valve seat (2)；
Inclined-plane on the flap (1) is annular, and is more extended outwardly, and is more tilted to the axle center of flap (1), and similar cone is formed
The shape of platform.
2. a kind of elastic conical surface valve base sealing structure of shut-off valve as described in claim 1, it is characterised in that：The flap
(1) inclined-plane on is elastic material.
3. a kind of elastic conical surface valve base sealing structure of shut-off valve as claimed in claim 2, it is characterised in that：The flap
(1) hollow out among the inclined-plane of the frustum shape on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721568732.6U CN207989768U (en) | 2017-11-22 | 2017-11-22 | A kind of elastic conical surface valve base sealing structure of shut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721568732.6U CN207989768U (en) | 2017-11-22 | 2017-11-22 | A kind of elastic conical surface valve base sealing structure of shut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207989768U true CN207989768U (en) | 2018-10-19 |
Family
ID=63804880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721568732.6U Active CN207989768U (en) | 2017-11-22 | 2017-11-22 | A kind of elastic conical surface valve base sealing structure of shut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207989768U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812588A (en) * | 2017-11-22 | 2019-05-28 | 中核苏阀科技实业股份有限公司 | A kind of elastic conical surface valve base sealing structure of shut-off valve |
| CN114341534A (en) * | 2019-08-30 | 2022-04-12 | 旭有机材株式会社 | Valve device |
-
2017
- 2017-11-22 CN CN201721568732.6U patent/CN207989768U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812588A (en) * | 2017-11-22 | 2019-05-28 | 中核苏阀科技实业股份有限公司 | A kind of elastic conical surface valve base sealing structure of shut-off valve |
| CN114341534A (en) * | 2019-08-30 | 2022-04-12 | 旭有机材株式会社 | Valve device |
| US11773985B2 (en) | 2019-08-30 | 2023-10-03 | Asahi Yukizai Corporation | Valve device |
| CN114341534B (en) * | 2019-08-30 | 2024-05-10 | 旭有机材株式会社 | Valve device |
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