CN208281520U - A kind of valve base sealing structure of middle line butterfly valve - Google Patents
A kind of valve base sealing structure of middle line butterfly valve Download PDFInfo
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- CN208281520U CN208281520U CN201820384420.8U CN201820384420U CN208281520U CN 208281520 U CN208281520 U CN 208281520U CN 201820384420 U CN201820384420 U CN 201820384420U CN 208281520 U CN208281520 U CN 208281520U
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- seat
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Abstract
A kind of valve base sealing structure of middle line butterfly valve, including valve body, it is mounted on the intracorporal valve seat of valve and through the valve shaft of valve body and valve seat, reinforcing rib is arranged in the intermediate of valve seat outer wall, reinforcing rib is installed in the groove of the valve body corresponding position, maze-type structure is set at valve seat end and valve body cooperation, mating surface on valve body with valve seat end is correspondingly arranged maze-type structure, the axis hole installed for valve shaft is set on valve seat, multiple-sealed circle is arranged in shaft bore surface, and multiple-sealed circle is arranged in valve seat two end faces.The beneficial effects of the utility model are: appearance the problems such as having along valve channel axis shift or fall off that prevents valve seat during the work time, and it can prevent valve seat during the work time can be along the generation of valve channel axis Rotation, it is leaked at anti-both ends axis hole simultaneously, ensure that medium does not corrode valve body, realizes the reliable sealing of valve shaft.
Description
Technical field
The utility model relates to a kind of butterfly valves, more particularly to a kind of valve base sealing structure of butterfly valve.
Background technique
Currently, the valve base sealing structure of middle line butterfly valve, valve seat is cold lining structure, detachable and interchangeable, still, valve seat with
Valve body cooperation is only plane cooperation, and the two often can be there is a phenomenon where axially or radially relatively moving, the other both ends axis hole of valve seat
Place is annular opening contacts, so O-ring slot and O-ring must be separately provided in valve seat on valve shaft during the work time, to prevent two
It holds and is leaked at axis hole；Valve seat both ends sealing surface is also flat seal, and flat seal must increase in use to folder method
The screw-down torque of blue bolt can be only achieved required seal pressure, and excessive pretightning force reduces the service life of bolt, increase
Accessory cost.
Utility model content
In order to overcome the disadvantages mentioned above of existing middle line butterfly valve, the utility model provides a kind of safe and reliable, leakproofness
The valve base sealing structure of good middle line butterfly valve.
Technical solution adopted by the utility model to solve its technical problems is a kind of valve base sealings of middle line butterfly valve
Structure including valve body, is mounted on the intracorporal valve seat of valve and through the valve shaft of valve body and valve seat, the intermediate setting of valve seat outer wall plus
Strengthening tendons, reinforcing rib are installed in the groove of the valve body corresponding position, and maze-type structure is arranged at valve seat end and valve body cooperation,
Maze-type structure is correspondingly arranged on valve body with the mating surface of valve seat end, the axis hole installed for valve shaft, axis hole table are set on valve seat
Multiple-sealed circle is arranged in face, and multiple-sealed circle is arranged in valve seat two end faces.
The beneficial effects of the utility model are: reinforcing rib structure is equipped among valve seat, to prevent valve seat worked
Cheng Zhongyou appearance along valve channel axis shift or the problems such as fall off；Surface in the both ends of the surface of valve seat with valve body cooperation is arranged
Maze-type structure is embedded in valve body maze-type structure, to prevent valve seat from can rotate during the work time along valve channel axis
The generation of problem；Multiple tracks O-ring structure is provided at the both ends axis hole of valve seat, to prevent leaking at the axis hole of both ends, it is ensured that medium is not
Corrode valve body, realizes the reliable sealing of valve shaft；Sealing surface of seat is provided with multiple tracks O-ring structure, can not use flange gasket
In the case where piece and companion flange forms effective sealing, has saved the purchase cost of user, seal with O ring makes in use
With lesser screw-down torque, that is, it can reach required seal pressure.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the present embodiment；
Fig. 2 is enlarged drawing at the A of Fig. 1；
Fig. 3 is the 3 dimensional drawing of component 3 in Fig. 1；
Fig. 4 is the 3 dimensional drawing of component 1 in Fig. 1.
In figure: 1. valve bodies；2. valve shaft；3. valve seat；4. O-ring；5. maze-type structure；6. reinforcing rib；7. groove
8. axis hole.
Specific embodiment
As shown in Figure 1,2,3, 4, a kind of valve base sealing structure of middle line butterfly valve, including valve body 1, it is mounted on valve body 1
Reinforcing rib 6 is arranged in interior valve seat 3 and the valve shaft 2 through valve body 1 and valve seat 3, the intermediate of 3 outer wall of valve seat, and reinforcing rib 6 is installed on
In the groove 7 of 1 corresponding position of valve body, thus prevent valve seat 3 during the work time and have along the displacement of 1 passage axis of valve body or
It falls off；Maze-type structure 5 is set at 3 end of valve seat and 1 cooperation of valve body, and the mating surface on valve body 1 with 3 end of valve seat is correspondingly arranged
Maze-type structure 5, maze-type structure 5 is groove and the alternate structure of protrusion, to prevent valve seat 3 during the work time can edge
1 passage axis of valve body rotation；The axis hole 8 installed for valve shaft 1 is set on valve seat 3, multiple tracks O-ring 4 is arranged in 8 surface of axis hole, with
It is leaked at anti-axis hole 8, it is ensured that medium does not corrode valve body 1, realizes the reliable sealing of valve shaft；Multiple tracks O shape is arranged in 3 two end faces of valve seat
Circle 4, can be in the case where not using flange gasket and companion flange forms effective sealing, and O-ring 4 seals in use
Using lesser screw-down torque, that is, it can reach required seal pressure.
Claims (1)
1. a kind of valve base sealing structure of middle line butterfly valve, including valve body, it is mounted on the intracorporal valve seat of valve and through valve body
With the valve shaft of valve seat, it is characterised in that: reinforcing rib is arranged in the intermediate of the valve seat outer wall, and it is corresponding that reinforcing rib is installed on the valve body
In the groove of position, maze-type structure is set at the valve seat end and valve body cooperation, is matched on the valve body with valve seat end
Conjunction face is correspondingly arranged maze-type structure, and the axis hole installed for valve shaft is arranged on the valve seat, and the shaft bore surface setting multiple tracks is close
Multiple-sealed circle is arranged in seal, the valve seat two end faces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820384420.8U CN208281520U (en) | 2018-03-21 | 2018-03-21 | A kind of valve base sealing structure of middle line butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820384420.8U CN208281520U (en) | 2018-03-21 | 2018-03-21 | A kind of valve base sealing structure of middle line butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208281520U true CN208281520U (en) | 2018-12-25 |
Family
ID=64749369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820384420.8U Active CN208281520U (en) | 2018-03-21 | 2018-03-21 | A kind of valve base sealing structure of middle line butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208281520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280131A (en) * | 2021-06-04 | 2021-08-20 | 重庆川仪调节阀有限公司 | Assembling method of three-eccentric center all-metal butterfly valve |
-
2018
- 2018-03-21 CN CN201820384420.8U patent/CN208281520U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280131A (en) * | 2021-06-04 | 2021-08-20 | 重庆川仪调节阀有限公司 | Assembling method of three-eccentric center all-metal butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230601 Address after: No. 68, xilide Road, Nanyang Town, Qidong City, Nantong City, Jiangsu Province, 226232 Patentee after: Jiangsu Shentong Nuclear Power Equipment Co.,Ltd. Address before: No. 88, Xiexing Street, Nanyang Town, Qidong City, Nantong City, Jiangsu Province, 226232 Patentee before: JIANGSU SHENTONG VALVE Co.,Ltd. |