CN102705526A - Self-adjusting valve seat type upper-mounted ball valve - Google Patents
Self-adjusting valve seat type upper-mounted ball valve Download PDFInfo
- Publication number
- CN102705526A CN102705526A CN2012102242947A CN201210224294A CN102705526A CN 102705526 A CN102705526 A CN 102705526A CN 2012102242947 A CN2012102242947 A CN 2012102242947A CN 201210224294 A CN201210224294 A CN 201210224294A CN 102705526 A CN102705526 A CN 102705526A
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- valve seat
- valve
- self
- spheroid
- spring
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Abstract
The invention relates to a self-adjusting valve seat type upper-mounted ball valve which comprises a valve body and a ball body, wherein the valve body is internally provided with a first valve seat and a second valve seat; the ball body is positioned between the first valve seat and the second valve seat; two sealing rings are respectively arranged between the first valve seat and the ball body as well as between the second valve seat and the ball body; and a spring and a sealing piece are respectively arranged between the first valve seat and the valve body as well as between the second valve seat and the valve body. After the structure is adopted, the upper-mounted ball valve is simple and convenient to assemble and disassemble, and more beneficial to on-line maintenance. The self-adjusting valve seat type upper-mounted ball valve is high in self-adaption sealing performance, greatly reduces the requirements of form and position tolerance such as coaxiality, parallelism and the like for a valve body seat ring hole, and reduces the difficulty of production technology.
Description
Technical field
The present invention relates to adorn ball valve on a kind of self-regulation valve seat formula.
Background technique
Existing ball valve all adopts dress formula structure, yet adopts the assembling and the unloading process of ball valve of this structure simple and convenient inadequately at present, and seal is good inadequately.Simultaneously, this type of ball valve is had relatively high expectations to form and position tolerances such as valve body seat ring hole coaxality, parallelism, has increased technology difficulty.Can cause inconvenience when needing repairing in addition.
Summary of the invention
It is strong that technical problem to be solved by this invention provides a kind of sealability, adorns ball valve on the self-regulation valve seat formula of simple in structure and easy-to-operat.
The present invention solves the technological scheme that its technical problem takes: adorn ball valve on a kind of self-regulation valve seat formula; Comprise valve body and spheroid; Be provided with first valve seat and second valve seat in the said valve body; Said spheroid is installed between first valve seat and second valve seat, is respectively equipped with seal ring between the contacting part of described first valve seat and second valve seat and spheroid, is respectively equipped with spring and Sealing between described first valve seat and second valve seat and the valve body contacting part.
In order to strengthen the sealing between valve seat and the spheroid, described first valve seat and second valve seat all adopt the spherical cambered surface isometrical with spheroid.
Further, be provided with elastic groove in the described seal ring.
Further be preferably, described spring is cylindrically coiled spring, butterfly spring or wavy spring.
Further be preferably, described Sealing is the combination or the lip-type packing of O type circle and packing, or the graphite material seal ring.
The invention has the beneficial effects as follows: after having adopted this kind structure, on to adorn the assembly and disassembly process of ball valve very easy, be more conducive to on-line maintenance.The self-adapting seal ability is strong, and the requirement of form and position tolerances such as valve body seat ring hole coaxality, parallelism is reduced significantly, has reduced the difficulty of production technology.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation after the present invention assembles completion.
Among the figure: 1, valve body; 2, first valve seat; 3, second valve seat; 4, spheroid; 5, seal ring;
6, elastic groove; 7, Sealing; 8, spring.
Embodiment
As adorning ball valve on Fig. 1, a kind of self-regulation valve seat formula shown in Figure 2; Comprise valve body 1 and spheroid 4; Be provided with first valve seat 2 and second valve seat 3 in the said valve body 1; Said spheroid 4 is installed between first valve seat 2 and second valve seat 3, is respectively equipped with seal ring 5 between the contacting part of described first valve seat 2 and second valve seat 3 and spheroid 4, is respectively equipped with spring 8 and Sealing 7 between described first valve seat 2 and second valve seat 3 and valve body 1 contacting part; Described first valve seat 2 and second valve seat 3 all adopt the spherical cambered surface isometrical with spheroid 4; Be provided with elastic groove 6 in the described seal ring 5; Described spring 8 is cylindrically coiled spring, butterfly spring or wavy spring; Described Sealing 7 is the combination or the lip-type packing of O type circle and packing, or the graphite material seal ring.
During installation; Earlier first valve seat 2 and second valve seat 3 are packed in the valve body 1; Between the contacting part of first valve seat 2 and second valve seat 3 and valve body 1, put into Sealing 7 and spring 8; Again seal ring 5 is enclosed within respectively on the isometrical spherical cambered surface of first valve seat 2 and second valve seat 3 and spheroid 4, and makes the top of seal ring 5 be formed slopely opening to the direction of first valve seat 2 and second valve seat 3 respectively.Adjustment is positioned at the spheroid channel direction on the valve body 1, make its with spheroid 4 on channel parallel, have the flat end surface of passway to put into the formed opening of two seal rings, 5 inclinations with being about to spheroid 4.Spheroid 4 moves downward, first valve seat 2 and second valve seat 3 respectively with the sealing surface contact matching of seal ring 5, the sealing surface of seal ring 5 respectively with the surperficial contact matching of spheroid 4.At this moment; The staff applies a downward power to spheroid 4; The sealing surface of seal ring 5 will be in the automatic deflection of sphere of the spherical cambered surface and the spheroid 4 of first valve seat 2 and second valve seat 3; And compress the spring 8 at first valve seat 2 and second valve seat, 3 back sides, be fit into fully between first valve seat 2 and second valve seat 3 until spheroid 4.Because first valve seat 2 and the spherical cambered surface of second valve seat 3 and the radiuses such as sphere of spheroid 4; Seal ring 5 just has self-adapting seal ability to a certain degree; Even two valve seat coaxalitys have overproof or spheroid that the off-centre of any direction is arranged, seal ring is a certain angle of deflection automatically, guarantees sealing.
During dismounting, the staff directly pulls out the accent direction of spheroid 4 from valve body 1, and seal ring 5 is automatically around the centre of sphere deflection of the spherical cambered surface of first valve seat 2 and second valve seat 3, until spheroid 4 is taken out fully.
Because just relatively rotate when having only assembling and dismounting between seal ring 5 and first valve seat 2, second valve seat 3, sealing can select metallic seal or O type circle to seal according to applying working condition so.
Claims (5)
1. adorn ball valve on a self-regulation valve seat formula; Comprise valve body (1) and spheroid (4); It is characterized in that: be provided with first valve seat (2) and second valve seat (3) in the said valve body (1); Said spheroid (4) is installed between first valve seat (2) and second valve seat (3); Be respectively equipped with seal ring (5) between the contacting part of described first valve seat (2) and second valve seat (3) and spheroid (4), be respectively equipped with spring (8) and Sealing (7) between described first valve seat (2) and second valve seat (3) and valve body (1) contacting part.
2. adorn ball valve on a kind of self-regulation valve seat formula according to claim 1, it is characterized in that: described first valve seat (2) and second valve seat (3) all adopt and the isometrical spherical cambered surface of spheroid (4).
3. adorn ball valve on a kind of self-regulation valve seat formula according to claim 1, it is characterized in that: be provided with elastic groove (6) in the described seal ring (5).
4. adorn ball valve on a kind of self-regulation valve seat formula according to claim 1, it is characterized in that: described spring (8) is cylindrically coiled spring, butterfly spring or wavy spring.
5. adorn ball valve on a kind of self-regulation valve seat formula according to claim 1, it is characterized in that: described Sealing (7) is the combination or the lip-type packing of O type circle and packing, or the graphite material seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102242947A CN102705526A (en) | 2012-07-02 | 2012-07-02 | Self-adjusting valve seat type upper-mounted ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102242947A CN102705526A (en) | 2012-07-02 | 2012-07-02 | Self-adjusting valve seat type upper-mounted ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102705526A true CN102705526A (en) | 2012-10-03 |
Family
ID=46898509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102242947A Pending CN102705526A (en) | 2012-07-02 | 2012-07-02 | Self-adjusting valve seat type upper-mounted ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102705526A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1486934A (en) * | 1973-12-10 | 1977-09-28 | Saab Scania Ab | Rotary valves |
| GB2107025A (en) * | 1981-09-28 | 1983-04-20 | Kitamura Valve Mfg Co Ltd | Fluid flow control valve |
| CN2397316Y (en) * | 1999-04-09 | 2000-09-20 | 阜宁县嘉达阀门有限公司 | Integral detachable ball valve |
| CN202001656U (en) * | 2011-03-31 | 2011-10-05 | 上海耐莱斯·詹姆斯伯雷阀门有限公司 | Ball of lifting rod type ball valve |
| CN202629148U (en) * | 2012-07-02 | 2012-12-26 | 苏州道森阀门有限公司 | Self-regulating valve seat type top entry ball valve |
-
2012
- 2012-07-02 CN CN2012102242947A patent/CN102705526A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1486934A (en) * | 1973-12-10 | 1977-09-28 | Saab Scania Ab | Rotary valves |
| GB2107025A (en) * | 1981-09-28 | 1983-04-20 | Kitamura Valve Mfg Co Ltd | Fluid flow control valve |
| CN2397316Y (en) * | 1999-04-09 | 2000-09-20 | 阜宁县嘉达阀门有限公司 | Integral detachable ball valve |
| CN202001656U (en) * | 2011-03-31 | 2011-10-05 | 上海耐莱斯·詹姆斯伯雷阀门有限公司 | Ball of lifting rod type ball valve |
| CN202629148U (en) * | 2012-07-02 | 2012-12-26 | 苏州道森阀门有限公司 | Self-regulating valve seat type top entry ball valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121003 |