CN206072402U - A kind of sealing structure of eccentric half-ball valve - Google Patents
A kind of sealing structure of eccentric half-ball valve Download PDFInfo
- Publication number
- CN206072402U CN206072402U CN201620937177.9U CN201620937177U CN206072402U CN 206072402 U CN206072402 U CN 206072402U CN 201620937177 U CN201620937177 U CN 201620937177U CN 206072402 U CN206072402 U CN 206072402U
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- valve
- ring
- valve seat
- sealing
- valve body
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Abstract
This utility model is a kind of sealing structure of eccentric half-ball valve，Including valve body、Valve seat、Valve seat trim ring and valve element，Step is provided with the sealing surface of the valve body，The valve seat is at the sealing surface of valve body，Step also is provided with the sealing surface of the valve seat，V-ring is provided between the step of the step and valve body of the valve seat，The valve element is in valve body，The bottom of the v-ring is pressed into contact with valve element in valve closing，The valve seat trim ring is connected with valve body，The valve seat trim ring compresses valve seat，Described valve seat trim ring is provided with slack adjuster，Adjusting elasticity screw can make v-ring compress or unclamp valve element，This utility model is by the sealing ring at valve sealing face by being changed between valve seat and valve body on the valve body，Avoid the difficulty that dovetail groove is processed on valve body，It is difficult for drop-off，V-ring can deform under the pressure of medium in the duct，With self-sealing characteristics，Improve sealing reliability.
Description
Technical field
This utility model is related to eccentric half-ball valve technical field, more particularly to a kind of sealing structure of eccentric half-ball valve.
Background technology
Eccentric half-ball valve is also c-type ball valve, is making valve unimpeded or inaccessible, its light, volume of switch by rotary hemispherical
It is little, very heavy caliber can be made, simple structure is easy to maintenance, and sealing surface, is difficult to be rushed by medium often in closure state with sphere
Erosion, is widely used in the operating mode that oil, chemical industry, urban water supply and sewerage etc. require strict seal.
According to the difference of sealing surface, eccentric half-ball valve can be divided into soft seal and two kinds of different forms of sealing firmly, at present,
In soft seal eccentric half-ball valve, its sealing surface is typically using the shape that placement sealing ring in dovetail groove, dovetail groove is processed on valve body
Formula realizes sealing, and the shortcoming that this seal form is present is：The difficulty height and processing dimension of dovetail groove are processed on valve body directly
It is wayward, sealing ring is loaded into dovetail groove after often processing, after valve operation a period of time, sealing ring easily comes off, and reaches
Less than sealing effectiveness, valve serious leak, sealing reliability is caused to be difficult to ensure.
The content of the invention
This utility model aims to solve the problem that the deficiencies in the prior art, and provides a kind of sealing structure of eccentric half-ball valve, and this is close
Cover strcution can be securely fixed in sealing ring on sealing surface, prevent from causing valve leak as sealing ring comes off.
This utility model for achieving the above object, is employed the following technical solutions：A kind of sealing structure of eccentric half-ball valve, bag
Valve body, valve seat, valve seat trim ring and valve element are included, step, sealing of the valve seat located at valve body at the sealing surface of the valve body, is provided with
At face, step also is provided with the sealing surface of the valve seat, between the step of the step and valve body of the valve seat, v-seal is provided with
Circle, in valve body, the bottom of the v-ring is pressed into contact with valve element the valve element in valve closing, the valve seat
Trim ring is connected with valve body, and the valve seat trim ring compresses valve seat, and the outer round surface of the valve seat is provided with groove, O shapes are provided with groove
Sealing ring.
Described v-ring is nitrile rubber sealing ring.
Described valve seat trim ring is provided with slack adjuster, and adjusting elasticity screw can make v-ring compress or unclamp valve element.
The beneficial effects of the utility model are：This utility model is by the sealing ring at valve sealing face by valve body
It is changed between valve seat and valve body, it is to avoid the difficulty of dovetail groove is processed on the valve body, it is difficult for drop-off, and adopt V-arrangement
Sealing ring, v-ring can deform under the pressure of medium in the duct, with self-sealing characteristics, improve sealing reliability.
Description of the drawings
Fig. 1 is structural representation of the present utility model；
In figure：1- valve seat trim rings；2- slack adjusters；3- valve bodies；4-O shape sealing rings；5- valve seats；6-V shape sealing rings；7- valves
Core；
It is described in detail below with reference to embodiment of the present utility model referring to the drawings.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples：
As shown in figure 1, a kind of sealing structure of eccentric half-ball valve, including valve body 3, valve seat 5, valve seat trim ring 1 and valve element 7,
Step is provided with the sealing surface of the valve body 3, the valve seat 5 is located at the sealing surface of valve body 3, at the sealing surface of the valve seat 5
Step also is provided with, v-ring 6 between the step of the step and valve body 3 of the valve seat 5, is provided with, the valve element 7 is located at valve body 3
Interior, the bottom of the v-ring 6 is pressed into contact with valve element 7 in valve closing, and the valve seat trim ring 1 is connected with valve body 3,
The valve seat trim ring 1 compresses valve seat 5, and the outer round surface of the valve seat 5 is provided with groove, O-ring seals 4 are provided with groove.
Described v-ring 6 is nitrile rubber sealing ring.
Described valve seat trim ring 1 is provided with slack adjuster 2, and adjusting elasticity screw 2 can make v-ring 6 compress or unclamp
Valve element 7.
During work, when valve element 7 is rotated at 3 sealing surface of valve body, 6 pressed spool 7 of v-ring realizes sealing, in pipeline
Under the pressure of interior medium, v-ring 6 deforms, and bottom is even closer with the contact of valve element 7, it is ensured that sealing effectiveness, adjusts
Slack adjuster 2 can make valve seat trim ring 1 compress or unclamp valve seat 5, so that v-ring 6 compresses or unclamp valve element 7.
This utility model is exemplarily described above in conjunction with accompanying drawing, it is clear that this utility model is implemented not to be received
The restriction of aforesaid way, if the various improvement that method design of the present utility model and technical scheme are carried out are employed, or without
Improvement directly applies to other occasions, within protection domain of the present utility model.
Claims (3)
1. a kind of sealing structure of eccentric half-ball valve, including valve body (3), valve seat (5), valve seat trim ring (1) and valve element (7), which is special
Levy and be, at the sealing surface of the valve body (3), be provided with step, the valve seat (5) at the sealing surface of valve body (3), the valve
Step also is provided with the sealing surface of seat (5), between the step of the step and valve body (3) of the valve seat (5), v-ring is provided with
(6), the valve element (7) is interior located at valve body (3), and the bottom of the v-ring (6) is compressed with valve element (7) in valve closing
Contact, the valve seat trim ring (1) are connected with valve body (3), and the valve seat trim ring (1) compresses valve seat (5), outside the valve seat (5)
Circular surfaces are provided with groove, and O-ring seals (4) are provided with groove.
2. the sealing structure of eccentric half-ball valve according to claim 1, it is characterised in that described v-ring (6) is
Nitrile rubber sealing ring.
3. the sealing structure of eccentric half-ball valve according to claim 1, it is characterised in that on described valve seat trim ring (1)
Slack adjuster (2) is provided with, adjusting elasticity screw (2) can make v-ring (6) compress or unclamp valve element (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620937177.9U CN206072402U (en) | 2016-08-25 | 2016-08-25 | A kind of sealing structure of eccentric half-ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620937177.9U CN206072402U (en) | 2016-08-25 | 2016-08-25 | A kind of sealing structure of eccentric half-ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206072402U true CN206072402U (en) | 2017-04-05 |
Family
ID=58431441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620937177.9U Active CN206072402U (en) | 2016-08-25 | 2016-08-25 | A kind of sealing structure of eccentric half-ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206072402U (en) |
-
2016
- 2016-08-25 CN CN201620937177.9U patent/CN206072402U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 301802 Tianjin Industrial Park, Baodi District, No. 5 road, No. nine Patentee after: Swaziland valve Limited by Share Ltd Address before: 301802 Tianjin Industrial Park, Baodi District, No. 5 road, No. nine Patentee before: Bonasiwei Valve Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |