CN201339722Y - Ball valve seat - Google Patents
Ball valve seat Download PDFInfo
- Publication number
- CN201339722Y CN201339722Y CNU2008201554847U CN200820155484U CN201339722Y CN 201339722 Y CN201339722 Y CN 201339722Y CN U2008201554847 U CNU2008201554847 U CN U2008201554847U CN 200820155484 U CN200820155484 U CN 200820155484U CN 201339722 Y CN201339722 Y CN 201339722Y
- Authority
- CN
- China
- Prior art keywords
- valve seat
- rubber
- plastic spare
- groove
- utility
- 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 - Lifetime
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- Taps Or Cocks (AREA)
Abstract
The utility model discloses a ball valve seat, which comprises a rubber-plastic part and a valve seat framework, and the rubber-plastic part is pressed in the valve seat framework. The part of the valve seat framework, which is connected with the rubber-plastic part, is provided with a groove. According to the utility model, two barbs, each of which is narrow interiorly and wide exteriorly, are machined on the inner and the outer walls of the groove, and are fastened in the rubber-plastic part. The utility model resolves the problems of the prior ball valve seat, such as fit clearance and looseness. The ball valve seat has the advantages of reliable sealing property, long service life and the like, and can increase the production efficiency.
Description
Technical field
The utility model relates to a kind of ball seat.
Background technique
Ball valve extensively applies to all trades and professions with its excellent sealing performance and negotiability.Important spare part as ball valve---valve seat, the quality of its state directly influences the sealability of ball valve.Valve seat and spheroid are called as the sealing pair of ball valve, and in general, the rubber and plastic spare in the valve seat groove is closely docile with the spheroid applying, and ball valve promptly has excellent sealing performance.
Known ball seat is pressed into a rubber and plastic spare and is formed by a valve seat skeleton in it, by the machining accuracy of valve seat skeleton groove and rubber and plastic spare two parts, fix by interference fit each other.Its required precision height, difficulty of processing is big, in case machining deviation occurs, promptly produces the gap and influences the sealability of ball valve.Simultaneously, along with the increase of service time, tired becoming flexible often occur and the appearance leakage between valve seat skeleton and the rubber and plastic spare, therefore, its working life is limited.
The model utility content
For the valve seat skeleton that solves prior art with gap, problem such as loosening appear cooperating of rubber and plastic spare, the purpose of this utility model is to provide a kind of ball seat.Utilize the utility model, can reduce requirement, improve sealability, prolong valve seat working life the machining accuracy of valve seat skeleton and rubber and plastic spare and Spielpassung.
In order to reach above-mentioned model utility purpose, the utility model is that the technological scheme that its technical problem of solution is adopted provides a kind of ball seat, and this valve seat comprises: rubber and plastic spare, valve seat skeleton, rubber and plastic spare is pressed in the valve seat skeleton.On the valve seat skeleton, has groove with the joint of rubber and plastic spare.According to the utility model, at the inside and outside wall of groove, be processed with two barbs respectively, barb buckles in the rubber and plastic spare.
Above-mentioned barb shape is interior narrow outer wide, and rubber and plastic spare easily advances difficulty and goes out, and when rubber and plastic spare discontinuity or tired becoming flexible, still can provide bigger chucking power, guarantees the relative position of rubber and plastic spare at groove, can not influence its sealability.
A kind of ball seat of the utility model, owing to take above-mentioned technological scheme, the valve seat skeleton adopts interior narrow outer wide barb to cooperate with rubber and plastic spare, therefore, solve the prior art ball seat and matching gap, problem such as loosening have occurred, reduce the requirement of part processing precision, obtained valve base sealing reliable performance, long service life, and beneficial effect such as enhance productivity.
Description of drawings
Fig. 1 is the sectional view of valve seat skeleton;
Fig. 2 is the sectional view of rubber and plastic spare;
Fig. 3 is the enlarged view of valve seat skeleton groove among Fig. 1.
Embodiment
Below in conjunction with description of drawings preferred embodiment of the present utility model.
Fig. 1 is the sectional view of valve seat skeleton 3; Fig. 2 is the sectional view of rubber and plastic spare 4; Fig. 3 is the enlarged view of valve seat skeleton groove 1 among Fig. 1.Shown in the embodiment of accompanying drawing, this valve seat comprises: valve seat skeleton, rubber and plastic spare.
Rubber and plastic spare 4 is pressed in the valve seat skeleton 3.On the valve seat skeleton 3, has groove 1 with the joint of rubber and plastic spare 4.According to the utility model, at the inside and outside wall of groove 1, being processed with two width respectively is that X (by the groove width adjustment), angle are Y ° barb 2.Being shaped as of barb 2 is interior narrow outer wide.
After rubber and plastic spare 4 is pressed into valve seat skeleton 3, article two, barb 2 buckles in the rubber and plastic spare 4, form two road seal rings, prevent that pressurized gas or liquid from oozing out from the slit of groove 1 inside and outside wall and 4 applyings of rubber and plastic spare, improve the sealability of ball valve, and reduced the requirement of external diameter machining accuracy in the rubber and plastic spare 4 largely.Because barb 2 is narrow outer wide shape in being designed to, so rubber and plastic spare 4 easily advances difficulty and goes out, when rubber and plastic spare 4 discontinuity or tired when loosening, still can provide bigger chucking power, guarantee the relative position of rubber and plastic spare 4, reduce rubber and plastic spare 4 impaired risks, increase the service life at groove 1.
The utility model has improved the structural design of original groove, design science, processing is simple, make the 4 complete fillings of rubber and plastic spare in groove 1, real and valve seat skeleton 3 is combined as a whole, prolong valve seat in the time of working life,, promote the ball valve sealing performance for the sealing pair of rubber and plastic spare 4 and spheroid provides strong support.
Claims (2)
1, a kind of ball seat, this valve seat comprises: rubber and plastic spare, valve seat skeleton, rubber and plastic spare are pressed in the valve seat skeleton; On the valve seat skeleton, has groove with the joint of rubber and plastic spare; It is characterized in that at the inside and outside wall of groove, be processed with two barbs respectively, barb buckles in the rubber and plastic spare.
2, ball seat as claimed in claim 1 is characterized in that: described barb shape is interior narrow outer wide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201554847U CN201339722Y (en) | 2008-11-18 | 2008-11-18 | Ball valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201554847U CN201339722Y (en) | 2008-11-18 | 2008-11-18 | Ball valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201339722Y true CN201339722Y (en) | 2009-11-04 |
Family
ID=41235268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201554847U Expired - Lifetime CN201339722Y (en) | 2008-11-18 | 2008-11-18 | Ball valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201339722Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338229A (en) * | 2010-07-16 | 2012-02-01 | 天特阀门集团有限责任公司 | Ball valve seat and manufacturing method thereof |
| CN102818044A (en) * | 2012-08-31 | 2012-12-12 | 五洲阀门有限公司 | Ball valve |
-
2008
- 2008-11-18 CN CNU2008201554847U patent/CN201339722Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338229A (en) * | 2010-07-16 | 2012-02-01 | 天特阀门集团有限责任公司 | Ball valve seat and manufacturing method thereof |
| CN102818044A (en) * | 2012-08-31 | 2012-12-12 | 五洲阀门有限公司 | Ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091104 |