CN203009902U - Ball valve ball body sealing structure - Google Patents
Ball valve ball body sealing structure Download PDFInfo
- Publication number
- CN203009902U CN203009902U CN 201220574885 CN201220574885U CN203009902U CN 203009902 U CN203009902 U CN 203009902U CN 201220574885 CN201220574885 CN 201220574885 CN 201220574885 U CN201220574885 U CN 201220574885U CN 203009902 U CN203009902 U CN 203009902U
- Authority
- CN
- China
- Prior art keywords
- ball
- valve
- ball body
- sealing
- spheroid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a ball valve ball body sealing structure which comprises a valve cover. The left end of the valve cover is provided with an inlet end which is connected with the valve cover into a whole. An outlet end is arranged at the right end of the valve cover. A valve rod is installed in the middle of the valve cover. A ball body is fixedly connected with the lower end of the valve rod. The ball body is contacted with the inlet end and the outlet end. The end face where the inlet end is contacted with the ball body and the end face where the outlet end is contacted with the ball body are respectively provided with a sealing ring groove. A sealing ring is arranged inside each sealing ring in an embedded mode. A spring is arranged between each sealing ring and each groove. The cross section of each sealing ring is in an arch shape. According to the ball vale ball body sealing structure, an optimal range of a sealing area can be automatically regulated along with pressure.
Description
Technical field
The utility model relates to a kind of ball for ball valve sealing configuration.
Background technique
Work the ball valve kind of blocking medium a lot of in pipeline, hard sealed eccentric ball valve and soft seal constant-current type ball valve are arranged, the sealing of hard sealed constant-current type ball valve is metal to metal, after long-time the use, the mutual friction of phase-contact surface meeting phase, make to be sealed with certain leakage, and the sealing of soft seal constant-current type ball valve is metal pair rubber, after long-time the use, phase-contact surface can the phase mutual friction, sealing can reach zero leakage, and in the prior art valve, sealing surface can not be adjusted, and does not take full advantage of the elasticity of seat material.
The model utility content
The utility model provides the zone meeting of a kind of valve seal automatically adjust the ball for ball valve sealing configuration of optimum range along with pressure.
The utility model technical solution problem provides following scheme:
A kind of ball for ball valve sealing configuration, comprise valve gap, it is characterized in that: the left end of described valve gap has the entrance point that is connected as a single entity with valve gap, the right-hand member of described valve gap is provided with outlet end, the middle part of described valve gap is equipped with valve rod, the lower end of described valve rod is fixedly connected with spheroid, described spheroid contacts with outlet end with entrance point respectively, described entrance point is provided with o-ring groove with the end face that outlet end contacts with spheroid, be inlaid with seal ring in described o-ring groove, be provided with spring between described seal ring and groove, described seal ring cross section is arch.
The sealing surface of described seal ring and spheroid face tangentially Elastic Contact.
Sealing station of the present utility model is the tangent line zone, sealing effect is played in its zone all the time, when pressure increases the promotion spheroid, the elasticity of valve sealing ring can increase sealing area with pressure, when pressure reduces, sealing area also can reduce thereupon, makes its sealing be in automatic adjustment optimum range always.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
referring to accompanying drawing, a kind of ball for ball valve sealing configuration, comprise valve gap 1, the left end of described valve gap 1 has the entrance point 2 that is connected as a single entity with valve gap 1, the right-hand member of described valve gap 1 is provided with outlet end 3, the middle part of described valve gap 1 is equipped with valve rod 4, the lower end of described valve rod 4 is fixedly connected with spheroid 5, described spheroid 5 contacts with outlet end 3 with entrance point 2 respectively, described entrance point 2 is provided with o-ring groove 6 with the end face that outlet end 3 contacts with spheroid 5, be inlaid with seal ring 7 in described o-ring groove 6, be provided with spring 9 between described seal ring 7 and groove 6, described seal ring 7 cross sections are arch 8, 5 tangentially Elastic Contact of the sealing surface of described seal ring 7 and spheroid.
Claims (2)
1. ball for ball valve sealing configuration, comprise valve gap, it is characterized in that: the left end of described valve gap has the entrance point that is connected as a single entity with valve gap, the right-hand member of described valve gap is provided with outlet end, the middle part of described valve gap is equipped with valve rod, the lower end of described valve rod is fixedly connected with spheroid, described spheroid contacts with outlet end with entrance point respectively, described entrance point is provided with o-ring groove with the end face that outlet end contacts with spheroid, be inlaid with seal ring in described o-ring groove, be provided with spring between described seal ring and groove, described seal ring cross section is arch.
2. ball for ball valve sealing configuration according to claim 1, is characterized in that: the sealing surface of described seal ring and spheroid face tangentially Elastic Contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220574885 CN203009902U (en) | 2012-11-02 | 2012-11-02 | Ball valve ball body sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220574885 CN203009902U (en) | 2012-11-02 | 2012-11-02 | Ball valve ball body sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009902U true CN203009902U (en) | 2013-06-19 |
Family
ID=48601499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220574885 Expired - Fee Related CN203009902U (en) | 2012-11-02 | 2012-11-02 | Ball valve ball body sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009902U (en) |
-
2012
- 2012-11-02 CN CN 201220574885 patent/CN203009902U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20131102 |