CN216715289U - Upper-mounted eccentric ball valve seat sealing structure - Google Patents
Upper-mounted eccentric ball valve seat sealing structure Download PDFInfo
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- CN216715289U CN216715289U CN202220317706.0U CN202220317706U CN216715289U CN 216715289 U CN216715289 U CN 216715289U CN 202220317706 U CN202220317706 U CN 202220317706U CN 216715289 U CN216715289 U CN 216715289U
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Abstract
The utility model discloses a valve seat sealing structure of an upper-mounted eccentric ball valve, which comprises a valve seat and a valve core, wherein the valve seat and the valve core are arranged on a valve body; the valve is characterized by also comprising a base which enables the valve seat to be detachably arranged in the valve body; the valve seat is detachably arranged on the base, and quantitative compression sealing gaskets are arranged among the base, the valve body and the valve seat; and sealing surface assemblies are arranged on the valve seat and the valve core. According to the utility model, through the arrangement of the base, the valve seat is arranged in the valve body through the base, so that the situation that the valve seat is seized by outgoing lines of the valve body due to high temperature is prevented, the replacement of the valve seat in the later period is facilitated, and the use cost is reduced; through the arrangement of the quantitative compression sealing gasket, the valve seat is sealed with the valve body and the base in a quantitative compression mode of the quantitative compression sealing gasket, so that the sealing among the valve seat, the valve body and the base is facilitated; through the setting of sealed face subassembly, through the sealed face subassembly of looks adaptation build-up welding on disk seat and the case to improve sealed effect, prevent to leak.
Description
Technical Field
The utility model relates to the technical field of valve seat sealing structures, in particular to a valve seat sealing structure of an eccentric ball valve, which is assembled.
Background
The eccentric ball valve is a valve which is opened and closed by rotating a ball body around the central line of the valve body, in the prior art, a valve seat is directly fixed in the valve body through threads or screws, when the valve body is used in a high-temperature environment, the threads between the valve seat and the valve body are easy to deform, the seizure condition is generated, the whole replacement of the valve body and the valve seat is needed, so that the use cost is improved, and due to the eccentric structure of the valve, a valve core is in contact with the valve seat for a long time, the influence of eccentric torque is received, the valve seat is easy to deform, and the valve body leaks. Therefore, the upper assembly is an eccentric ball valve seat sealing structure.
Disclosure of Invention
The utility model aims to solve the problems that in the prior art, a valve seat is directly fixed in a valve body through threads or screws, when the valve body is used in a high-temperature environment, the threads between the valve seat and the valve body are easy to deform to cause seizure, the valve body and the valve seat need to be integrally replaced, so that the use cost is increased, and due to the eccentric structure of a valve, a valve core is in contact with the valve seat for a long time, the valve seat is easy to deform due to the influence of eccentric torque, so that the valve body leaks and the like.
In order to achieve the purpose, the utility model provides the following technical scheme: a kind of upper-mounted eccentric ball valve base seal structure, including valve base and valve core installed on valve block; the valve is characterized by also comprising a base which enables the valve seat to be detachably arranged in the valve body; the valve seat is detachably arranged on the base, and quantitative compression sealing gaskets are arranged among the base, the valve body and the valve seat; and sealing surface assemblies are arranged on the valve seat and the valve core.
Preferably, the base is installed in the valve body through threads; the valve seat is fixedly arranged on the base through a screw; the quantitative compression sealing gasket comprises a first quantitative compression sealing gasket between the sealing valve seat and the base and a second quantitative compression sealing gasket between the sealing valve seat and the base and between the sealing valve seat and the valve body.
Preferably, a matched limiting assembly is arranged between the valve seat and the valve body; the limiting assembly comprises a limiting screw arranged on the valve body and a limiting groove arranged on the valve seat and matched with the limiting screw.
Preferably, the sealing surface assembly comprises a valve seat sealing surface formed on the valve seat through overlaying welding and a valve core sealing surface formed on the valve core and matched with the valve seat sealing surface.
The utility model has the beneficial effects that: through the arrangement of the base, the valve seat is arranged in the valve body through the base, so that the situation that the valve seat is seized by outgoing lines of the valve body due to high temperature is prevented, the replacement of the valve seat in the later period is facilitated, and the use cost is reduced;
through the arrangement of the quantitative compression sealing gasket, the valve seat is sealed with the valve body and the base in a quantitative compression mode of the quantitative compression sealing gasket, so that the sealing among the valve seat, the valve body and the base is facilitated;
through the setting of sealed face subassembly, through the sealed face subassembly of looks adaptation build-up welding on disk seat and the case to improve sealed effect, prevent to leak.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a partially enlarged view of the present invention at a.
Illustration of the drawings: 1, a valve body; 2, valve seats; 3, a valve core; 4, a base; 5 quantitatively compressing the sealing gasket; 501 a first quantity of compression gasket; 502 a second quantitative compressive seal; 6 sealing the face assembly; 601, a valve seat sealing surface; 602 a valve core sealing surface; 7, a limiting component; 701 limiting screws; 702 a retaining groove.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, the upper-mounted eccentric ball valve seat sealing structure in the present embodiment includes a valve seat 2 and a valve core 3 mounted on a valve body 1; the valve is characterized by also comprising a base 4 which can enable the valve seat 2 to be detachably arranged in the valve body 1; the valve seat 2 is detachably arranged on the base 4, and quantitative compression sealing gaskets 5 are arranged between the base 4 and the valve body 1 as well as between the valve seat 2; the valve seat 2 and the valve core 3 are both provided with a sealing surface assembly 6; through the arrangement of the base 4 between the valve body 1 and the valve seat 2, the valve seat 2 is arranged in the valve body 1 through the base 4, so that the situation that the valve body 1 is seized due to high temperature is prevented, the replacement of the valve seat 2 in the later period is facilitated, and the use cost is reduced; through the arrangement of the quantitative compression sealing gasket 5, the valve seat 2 is sealed with the valve body 1 and the base 4 in a quantitative compression mode of the quantitative compression sealing gasket 5, so that the sealing between the valve seat 2 and the valve body 1 as well as the sealing between the valve seat 2 and the base 4 are facilitated; through the setting of sealed face subassembly 6, through looks adaptation build-up welding sealed face subassembly 6 on disk seat 2 and the case 3 to improve sealed effect, prevent to leak.
Referring to fig. 1-2, the base 4 is mounted in the valve body 1 by threads; the valve seat 2 is fixedly arranged on the base 4 through screws; the quantitative compression gasket 5 comprises a first quantitative compression gasket 501 between the sealing valve seat 2 and the base 4 and a second quantitative compression gasket 502 between the sealing valve seat 2 and the base 4 and the valve body 1; a matched limiting component 7 is arranged between the valve seat 2 and the valve body 1; the limiting component 7 comprises a limiting screw 701 arranged on the valve body 1 and a limiting groove 702 which is arranged on the valve seat 2 and is matched with the limiting screw 701; the sealing surface assembly 6 comprises a valve seat sealing surface 601 which is overlaid on the valve seat 2 and a valve core sealing surface 602 which is overlaid on the valve core 3 and is matched with the valve seat sealing surface 601; the sealing performance between the valve seat 2 and the valve core 3 is improved by overlaying cobalt-based alloy on the valve seat 2 and the valve core 3 and increasing the goodness of fit between the valve seat 2 and the valve core 3 by grinding; through the arrangement of the upper limiting screw 701 of the valve body 1, the valve seat 2 is matched with the limiting screw 701 through the limiting groove 702 to limit the valve seat 2, so that the valve seat 2 is convenient to limit; install first quantitative compression seal pad 501 through sealed valve seat 2 and base 4, install second quantitative compression seal pad 502 between sealed valve seat 2 and base 4 and the valve body 1, first quantitative compression seal pad 501 and first quantitative compression seal pad 501 seal sealed valve seat 2 and base 4 and valve body 1 through the mode of quantitative compression to be convenient for seal between sealed valve seat 2 and base 4 and the valve body 1.
According to the utility model, firstly, cobalt-based alloy is overlaid on the valve seat 2 and the valve core 3, the valve seat 2 is matched and matched with the valve core 3 in a matching way by grinding, then the base 4 is fixedly installed in the valve body 1 through threads, the valve seat 2 is installed on the base 4, a first quantity of compression sealing gaskets 501 are installed between the valve seat 2 and the base 4, a second quantity of compression sealing gaskets 502 are installed between the valve seat 2 and the base 4 as well as between the valve body 1, meanwhile, the valve seat 2 is fixed on the base 4 through screws, then, a limit screw 701 is installed on the valve body 1, so that the limit screw 701 is matched with a limit groove 702 on the valve seat 2 to limit the valve seat 2, when the valve seat 2 needs to be replaced in the later period, only the valve seat 2 needs to be detached from the base 4 to replace the valve seat 2, and the whole replacement does not need to be carried out.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (5)
1. A valve seat sealing structure of an upper-mounted eccentric ball valve comprises a valve seat (2) and a valve core (3) which are arranged on a valve body (1); the valve is characterized by also comprising a base (4) which enables the valve seat (2) to be detachably arranged in the valve body (1); the valve seat (2) is detachably arranged on the base (4), and quantitative compression sealing gaskets (5) are arranged between the base (4) and the valve body (1) and between the base (2); and sealing surface assemblies (6) are arranged on the valve seat (2) and the valve core (3).
2. The upper-mounted eccentric ball valve seat sealing structure according to claim 1, wherein: the base (4) is installed in the valve body (1) through threads; the valve seat (2) is fixedly arranged on the base (4) through screws.
3. The upper-mounted eccentric ball valve seat sealing structure according to claim 1, wherein: the quantitative compression sealing gasket (5) comprises a first quantitative compression sealing gasket (501) between the sealing valve seat (2) and the base (4) and a second quantitative compression sealing gasket (502) between the sealing valve seat (2) and the base (4) and between the valve body (1).
4. The upper-mounted eccentric ball valve seat sealing structure according to claim 2, wherein: a matched limiting component (7) is arranged between the valve seat (2) and the valve body (1); the limiting assembly (7) comprises a limiting screw (701) arranged on the valve body (1) and a limiting groove (702) arranged on the valve seat (2) and matched with the limiting screw (701).
5. The upper-mounted eccentric ball valve seat sealing structure according to claim 1, wherein: the sealing surface assembly (6) comprises a valve seat sealing surface (601) welded on the valve seat (2) in an overlaying mode and a valve core sealing surface (602) welded on the valve core (3) in an overlaying mode and matched with the valve seat sealing surface (601).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220317706.0U CN216715289U (en) | 2022-02-17 | 2022-02-17 | Upper-mounted eccentric ball valve seat sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220317706.0U CN216715289U (en) | 2022-02-17 | 2022-02-17 | Upper-mounted eccentric ball valve seat sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216715289U true CN216715289U (en) | 2022-06-10 |
Family
ID=81874901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220317706.0U Active CN216715289U (en) | 2022-02-17 | 2022-02-17 | Upper-mounted eccentric ball valve seat sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216715289U (en) |
-
2022
- 2022-02-17 CN CN202220317706.0U patent/CN216715289U/en active Active
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 311400 No.41 Jinqiu Avenue, Fuchun street, Fuyang District, Hangzhou City, Zhejiang Province Patentee after: ZHEJIANG SANFANG CONTROL VALVE Co.,Ltd. Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: 311400 No.41 Jinqiu Avenue, Fuchun street, Fuyang District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG SANFANG CONTROL VALVE Co.,Ltd. Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. |