CN204004535U - A kind of valve seat construction of ball valve - Google Patents
A kind of valve seat construction of ball valve Download PDFInfo
- Publication number
- CN204004535U CN204004535U CN201420383349.3U CN201420383349U CN204004535U CN 204004535 U CN204004535 U CN 204004535U CN 201420383349 U CN201420383349 U CN 201420383349U CN 204004535 U CN204004535 U CN 204004535U
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- CN
- China
- Prior art keywords
- valve seat
- seat
- main valve
- auxiliary
- spheroid
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Abstract
A kind of valve seat construction of ball valve, comprise valve seat body, valve seat body is made up of main valve seat and auxiliary-seat, main valve seat is arranged on the side near spheroid, auxiliary-seat is arranged on the side near valve port, between the axial end of auxiliary-seat and valve body, elastic device is set, main valve seat and auxiliary-seat butt, the surface of contact connecting with auxiliary-seat on main valve seat is the cambered surface of an evagination, the surface of contact connecting with main valve seat on auxiliary-seat is the cambered surface of an indent, between the radial end face of main valve seat and described auxiliary-seat and valve body, Sealing is set.The beneficial effects of the utility model are: the surface of contact that main valve seat and auxiliary-seat connect is cambered surface, main valve seat can rotate in cambered surface, in the time that spheroid is installed, main valve seat can be carried out to deflection, be convenient to the installation of spheroid, and can with spheroid automatic centering, under the effect of elastic device, main valve seat and spheroid fit tightly, and have ensured the zero leakage of valve.
Description
Affiliated technical field
The utility model relates to a kind of valve seat of ball valve, particularly a kind of valve seat construction for upper-mounting type ball valve.
Background technique
Upper-mounting type ball valve, in the time of sphere installation, need outwards be removed a segment distance by both sides valve seat, after sphere installation puts in place, both sides valve seat reset, and with spheroid close contact, produce sealing effect.And what conventionally adopt in prior art is near valve seat place, two regulating rods to be housed on valve body, regulating rod drives valve seat to move left and right, regulating rod can be built-in, also can be external, the regulating rod of external can cause valve to produce two leakage points, and built-in regulating rod can cause valve body structure to become large, cost of idleness, and regulating rod structure processed complex, assembling inconvenience.Another structure is to adopt built-in adjusting nut to drive moving left and right of valve seat, and this structure is perishable at screw thread place, easily get rusty, poor sealing performance.
Model utility content
In order to overcome the above-mentioned shortcoming of existing upper-mounting type ball valve, the utility model provides a kind of assembling simple, easy to maintenance, and can ensure the upper-mounting type ball valve of zero leakage.
The utility model solves the technological scheme that its technical problem adopts, a kind of valve seat construction of ball valve, comprise valve seat body, valve seat body is made up of main valve seat and auxiliary-seat, main valve seat is arranged on the side near spheroid, auxiliary-seat is arranged on the side near valve port, between the axial end of auxiliary-seat and valve body, elastic device is set, main valve seat and auxiliary-seat butt, the surface of contact connecting with auxiliary-seat on main valve seat is the cambered surface of an evagination, the surface of contact connecting with main valve seat on auxiliary-seat is the cambered surface of an indent, between the radial end face of main valve seat and described auxiliary-seat and valve body, Sealing is set.
The cambered surface of described evagination is a sphere, and the cambered surface of indent is a sphere.
The cambered surface of evagination is the parabola of an evagination, and the cambered surface of indent is the parabola of an indent.
The sealing surface of main valve seat and spheroid is soft sealing surface.
The sealing surface of main valve seat and spheroid is hard sealing surface.
The sealing surface of main valve seat and spheroid is soft or hard compound seal surface.
The beneficial effects of the utility model are: valve seat body is made up of main valve seat and auxiliary-seat, main valve seat and auxiliary-seat butt, the surface of contact that main valve seat and auxiliary-seat connect is cambered surface, main valve seat can rotate in cambered surface, in the time that spheroid is installed, main valve seat can be carried out to deflection, be installed to the entrance in valve seat with enlarged ball, be convenient to the installation of spheroid, in the process that sphere installation puts in place, main valve seat continues rotation, final and spheroid automatic centering, under the effect of elastic device, main valve seat and spheroid fit tightly, and have ensured the zero leakage of valve.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is embodiment's structural representation;
In figure: 1. valve seat body; 2. spheroid; 3. valve port; 4. valve body; 5. the cambered surface of evagination; 6. the cambered surface of indent; 7. Sealing; 8. sealing surface; 9. elastic device; 101 main valve seats; 102. auxiliary-seat.
Embodiment
As shown in Figure 1, a kind of valve seat construction of ball valve, comprise valve seat body 1, valve seat body 1 is made up of main valve seat 101 and auxiliary-seat 102, and main valve seat 101 is arranged on the side near spheroid 2, and auxiliary-seat 102 is arranged on the side near valve port 3, between the axial end of auxiliary-seat 102 and valve body 4, elastic device 9 is set, elastic device 9 can be spring, can be helical spring, and the structure with elasticity pretension function can be elastic device 9; Main valve seat 101 and auxiliary-seat 102 butts, the surface of contact connecting with auxiliary-seat 102 on main valve seat 101 is the cambered surface 5 of an evagination, the cambered surface 5 of this evagination can be sphere, also can be parabola face, the radian of this parabola face can ensure that main valve seat is not interfere in rotation, and the surface of contact connecting with main valve seat on auxiliary-seat 102 is the cambered surface 6 of an indent, and the cambered surface 6 of this indent is corresponding with the cambered surface of evagination, can be sphere, can be also parabola; Between the radial end face of main valve seat 101 and described auxiliary-seat 102 and valve body 3, Sealing 7 is set; Main valve seat 101 can be soft sealing surface with the sealing surface 8 of spheroid 2, can be hard sealing surface, can be also soft or hard compound seal surface.
When spheroid 2 is installed, first by main valve seat 101 deflections, be installed to the entrance in valve seat with enlarged ball 2, be convenient to the installation of spheroid 2, in the process that spheroid 2 is in place, main valve seat 101 continues rotation, final and spheroid 2 automatic centerings, under the effect of elastic device 9, main valve seat 101 fits tightly with spheroid 2, has ensured the zero leakage of valve.
Claims (6)
1. the valve seat construction of a ball valve, comprise valve seat body, it is characterized in that: described valve seat body is made up of main valve seat and auxiliary-seat, described main valve seat is arranged on the side near spheroid, described auxiliary-seat is arranged on the side near valve port, between the axial end of described auxiliary-seat and valve body, elastic device is set, described main valve seat and described auxiliary-seat butt, the surface of contact connecting with described auxiliary-seat on described main valve seat is the cambered surface of an evagination, the surface of contact connecting with described main valve seat on described auxiliary-seat is the cambered surface of an indent, between the radial end face of described main valve seat and described auxiliary-seat and valve body, Sealing is set.
2. the valve seat construction of a kind of ball valve as claimed in claim 1, is characterized in that: the cambered surface of described evagination is a sphere, and the cambered surface of described indent is a sphere.
3. the valve seat construction of a kind of ball valve as claimed in claim 1, is characterized in that: the cambered surface of described evagination is the parabola of an evagination, and the cambered surface of described indent is the parabola of an indent.
4. the valve seat construction of a kind of ball valve as claimed in claim 1, is characterized in that: the sealing surface of described main valve seat and spheroid is soft sealing surface.
5. the valve seat construction of a kind of ball valve as claimed in claim 1, is characterized in that: the sealing surface of described main valve seat and spheroid is hard sealing surface.
6. the valve seat construction of a kind of ball valve as claimed in claim 1, is characterized in that: the sealing surface of described main valve seat and spheroid is soft or hard compound seal surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420383349.3U CN204004535U (en) | 2014-07-12 | 2014-07-12 | A kind of valve seat construction of ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420383349.3U CN204004535U (en) | 2014-07-12 | 2014-07-12 | A kind of valve seat construction of ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204004535U true CN204004535U (en) | 2014-12-10 |
Family
ID=52044538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420383349.3U Withdrawn - After Issue CN204004535U (en) | 2014-07-12 | 2014-07-12 | A kind of valve seat construction of ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204004535U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089043A (en) * | 2014-07-12 | 2014-10-08 | 江苏神通阀门股份有限公司 | Valve seat structure of ball valve |
-
2014
- 2014-07-12 CN CN201420383349.3U patent/CN204004535U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089043A (en) * | 2014-07-12 | 2014-10-08 | 江苏神通阀门股份有限公司 | Valve seat structure of ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141210 Effective date of abandoning: 20160323 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |