CN208793688U - A kind of sphere valve seat transition detaching structure - Google Patents
A kind of sphere valve seat transition detaching structure Download PDFInfo
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- CN208793688U CN208793688U CN201821420016.8U CN201821420016U CN208793688U CN 208793688 U CN208793688 U CN 208793688U CN 201821420016 U CN201821420016 U CN 201821420016U CN 208793688 U CN208793688 U CN 208793688U
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- sphere
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- angle
- valve seat
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Abstract
A kind of sphere valve seat transition detaching structure, including sphere and valve seat, sphere is equipped with ball seal face, valve seat is equipped with sealing surface of seat, ball seal face and sealing surface of seat cooperatively form sealing pair, angle between ball seal face and the center line of sphere runner hole is α, and the angle between sealing surface of seat and the center line of sphere runner hole is β, 5 ° of 2 ° of > of > α > β;It is located at the transition face at sphere runner mouth on sphere and is equipped with transition arc A, the angle of transition arc A is R1, is located at the transition face at ball seal face on sphere and is equipped with transition arc B, and the angle of transition arc B is R2, R2=(2 ~ 3) R1.The beneficial effects of the utility model are: in valve opening, closing process, ball mouth and sealing surface of seat are in rounding off always and are detached from motion state, sealing pair is avoided because the influences such as pressure medium, mismachining tolerance lead to sealing pair occlusion, scratch damage, suitable for valve frequently opening and closing for a long time, long service life, sealing performance are stablized.
Description
Technical field
The utility model relates to a kind of spheres and valve seat transition detaching structure.
Background technique
Current existing ball valve ball mouth structure generallys use designed arc-shaped appearance, because of pressure medium, processing in beginning, closing process
Gap, error etc. influence, and ball mouth is easy to produce occlusion, abrasive damage when passing through sealing surface of seat in opening-closing process, influence
Sealing surface service life.
Summary of the invention
The shortcomings that in order to overcome existing sphere valve seat transition detaching structure, the utility model, which provides one kind, can be avoided sealing
Pair occlusion, abrasive sphere valve seat transition detaching structure.
Technical solution adopted by the utility model to solve its technical problems is, a kind of sphere valve seat transition detaching structure,
Including sphere and valve seat, sphere is equipped with ball seal face, and valve seat is equipped with sealing surface of seat, ball seal face and sealing surface of seat
Sealing pair is cooperatively formed, the angle between ball seal face and the center line of sphere runner hole is α, sealing surface of seat and sphere stream
Angle between the center line in road hole is β, 5 ° of 2 ° of > of > α > β;It is located at the transition face at sphere runner mouth on sphere and was equipped with
Circular arc A is crossed, the angle of transition arc A is R1, it is located at the transition face at ball seal face on sphere and is equipped with transition arc B, mistake
The angle for crossing circular arc B is R2, R2=(2 ~ 3) R1.
The beneficial effects of the utility model are: ball mouth is in always with sealing surface of seat in valve opening, closing process
Rounding off is detached from motion state, avoids sealing pair because the influences such as pressure medium, mismachining tolerance lead to sealing pair occlusion, scratch
Damage, being suitable for valve, frequently opening and closing, long service life, sealing performance are stablized for a long time.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the present embodiment;
Fig. 2 is enlarged drawing at A in this Fig. 1.
In figure: 1. spheres;2. valve seat;3. ball seal face;4. sealing surface of seat;5. the center of sphere runner hole;
6. transition arc A;7. transition arc B;8. sphere runner mouth.
Specific embodiment
As shown in Figure 1, 2, a kind of sphere valve seat transition detaching structure, including sphere 1 and valve seat 2, sphere 1 are equipped with sphere
Sealing surface 3, valve seat 2 are equipped with sealing surface of seat 4, and ball seal face 3 and sealing surface of seat 4 cooperatively form sealing pair, ball seal
Angle between face 3 and the center line 5 of sphere runner hole is α, between sealing surface of seat 4 and the center line 5 of sphere runner hole
Angle is β, 5 ° of 2 ° of > of > α > β;It is located at the transition face at sphere runner mouth 8 on sphere 1 and is equipped with transition arc A6, transition circle
The angle of arc A6 is R1, is located at the transition face at ball seal face 3 on sphere 1 and is equipped with transition arc B7, the angle of transition arc B
Degree is R2, R2=(2 ~ 3) R1.
Claims (1)
1. a kind of sphere valve seat transition detaching structure, including sphere and valve seat, sphere is equipped with ball seal face, and valve seat is equipped with valve
Seat sealing surface, ball seal face and sealing surface of seat cooperatively form sealing pair, it is characterised in that: the ball seal face and sphere
Angle between the center line of runner hole is α, and the angle between the sealing surface of seat and the center line of sphere runner hole is β,
5 ° of 2 ° of > of > α > β;It is located at the transition face at sphere runner mouth on the sphere and is equipped with transition arc A, the angle of transition arc A
Degree is R1, is located at the transition face at ball seal face on the sphere and is equipped with transition arc B, and the angle of transition arc B is R2,
R2=(2~3)R1。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201821420016.8U CN208793688U (en) | 2018-08-31 | 2018-08-31 | A kind of sphere valve seat transition detaching structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821420016.8U CN208793688U (en) | 2018-08-31 | 2018-08-31 | A kind of sphere valve seat transition detaching structure |
Publications (1)
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CN208793688U true CN208793688U (en) | 2019-04-26 |
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CN201821420016.8U Active CN208793688U (en) | 2018-08-31 | 2018-08-31 | A kind of sphere valve seat transition detaching structure |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108843814A (en) * | 2018-08-31 | 2018-11-20 | 江苏神通阀门股份有限公司 | A kind of sphere valve seat transition detaching structure |
-
2018
- 2018-08-31 CN CN201821420016.8U patent/CN208793688U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108843814A (en) * | 2018-08-31 | 2018-11-20 | 江苏神通阀门股份有限公司 | A kind of sphere valve seat transition detaching structure |
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CB03 | Change of inventor or designer information |
Inventor after: Wu Binbin Inventor after: Zhang Yihua Inventor before: Wu Binbin Inventor before: Zhang Yihua |
|
CB03 | Change of inventor or designer information |