CN202812282U - Ball valve embedded valve seat - Google Patents
Ball valve embedded valve seat Download PDFInfo
- Publication number
- CN202812282U CN202812282U CN2012204557398U CN201220455739U CN202812282U CN 202812282 U CN202812282 U CN 202812282U CN 2012204557398 U CN2012204557398 U CN 2012204557398U CN 201220455739 U CN201220455739 U CN 201220455739U CN 202812282 U CN202812282 U CN 202812282U
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- China
- Prior art keywords
- valve seat
- valve
- ring surface
- ball
- valve body
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Abstract
The utility model discloses a ball valve embedded valve seat, which relates to the field of ball valves. The utility model provides a ball valve embedded valve seat, which does not move relative to a valve seat supporting seat in a low-temperature state. The ball valve embedded valve seat comprises an annular valve seat body, wherein the valve seat body is fixedly arranged in an annular groove formed in the valve seat supporting seat; the inner ring surface and the outer ring surface of the valve seat body are in interference fit with the annular groove; the inner ring surface or/and the outer ring surface of the valve seat body are provided with bumps; preferably, the bumps refer to two annular bumps which are concentric with the valve seat body; the sections of the bumps are in the forms of right trapezoids; the long bottom edges of the bumps are positioned on the inner ring surface or/and the outer ring surface of the valve seat body; and oblique waists of the bumps face towards the installation side of the valve seat body. The ball valve embedded valve seat is suitable for a ball valve of which the valve seat is made of a high polymer material, in particular for a ball valve of which the valve seat is made of a high polymer material in a low-temperature state.
Description
Technical field
The utility model relates to the ball valve field, relates in particular to the inserted valve seat of a kind of ball valve.
Background technique
The spheroid place of ball valve relies on valve seat and fitting tightly of spheroid to seal.The ball seat material has two kinds of macromolecular material and metallic material.The mounting type that the macromolecular material valve seat is commonly used as shown in Figure 1, valve seat is annular, each smooth surface, and valve seat is fixed in the circular groove that arranges on the valve seat supporting base, the inner ring surface of valve body and outer ring surface and circular groove interference fit, the fixing valve seat of this mode is called inserted valve seat.The technological process that valve seat is fixed to the valve seat supporting base is: at first with the valve seat cryogenic treatment, owing to the reason of expanding with heat and contract with cold, valve seat has certain contraction dimensionally, this moment valve seat is packed in the circular groove of valve seat supporting base, treat that valve seat recovers normal temperature, namely recover original size, form interference fit with circular groove, then process sealing surface of seat.Its advantage is the circular groove interference fit of valve seat and valve seat supporting base, does not need other auxiliary components to fix the relative position of valve seat and valve seat supporting base.Shortcoming is if ball valve is used in low temperature environment, and valve seat boundary dimension can be dwindled, and magnitude of interference can be with the reducing and reduce of valve seat boundary dimension between valve seat and valve seat supporting base, and valve seat exists the potential of relative valve seat supporting base displacement may.
The model utility content
Technical problem to be solved in the utility model is: providing can be relative to the inserted valve seat of the ball valve that the valve seat supporting base moves under a kind of low-temperature condition.
For the technological scheme that addresses the above problem employing is: the inserted valve seat of ball valve comprises the valve body of annular, valve body is fixed in the circular groove that is arranged on the valve seat supporting base, the inner ring surface of valve body and outer ring surface and circular groove interference fit, the inner ring surface of valve body is or/and be provided with projection on the outer ring surface.
Further be: described projection is and the body concentric annular protrusion of valve seat.
Further be: described convex cross section is right-angled trapezium; The long base of described right-angled trapezium is positioned at the inner ring surface of valve body or/and outer ring surface, and tiltedly waist is towards the valve body side of packing into.
Further be: the oblique waist of described right-angled trapezium is 15 degree with long base angle.
Further be: the inner ring surface of valve body is or/and be provided with two projections along valve body line direction on the outer ring surface.
The beneficial effects of the utility model are:
The inner ring surface of valve body is or/and be provided with projection on the outer ring surface, when ball valve is applied in the low temperature environment, the reason of valve seat because expanding with heat and contract with cold, cross-sectional dimension diminishes, and the projection of reserving makes the circular groove of valve seat and valve seat supporting base remain the interference state at this moment, if there is not external force, valve seat can not move relative to the valve seat supporting base.And when packing valve seat into the valve seat supporting base, at lower circular groove that needs with external force valve seat is pressed into the valve seat supporting base of low-temperature condition.
Description of drawings
Fig. 1 is the inserted valve seat scheme of installation of prior art ball valve;
Fig. 2 is the inserted valve seat scheme of installation of the utility model ball valve;
Fig. 3 is the inserted valve seat construction schematic representation of the utility model ball valve;
Be labeled as among the figure: valve body 1, valve seat supporting base 2, circular groove 3, the side of packing into 4, projection 5.
Embodiment
Below in conjunction with drawings and embodiments the utility model is further specified.
Can be relative to the inserted valve seat of the ball valve that the valve seat supporting base moves under a kind of low-temperature condition in order to provide, such as Fig. 2, shown in Figure 3, the inserted valve seat of ball valve, the valve body 1 that comprises annular, valve body 1 is fixed in the circular groove 3 that is arranged on the valve seat supporting base 2, the inner ring surface of valve body 1 and outer ring surface and circular groove 3 interference fit, the inner ring surface of valve body 1 is or/and be provided with projection 5 on the outer ring surface.When ball valve is applied in the low temperature environment, the reason of valve body 1 because expanding with heat and contract with cold, profile diminishes, and the projection 5 of reserving makes valve body 1 and circular groove 3 remain the interference state at this moment, if there is not external force, valve body 1 can not move relative to valve seat supporting base 2.
Projection 5 has multiple set-up mode, for example is the projection of some point-like, perhaps is the projection of some wire parallel with valve body 1 axis.The utility model optimal way is that projection 5 is the annular protrusion concentric with valve body 1.
The cross section of projection 5 can be various shape, and is for example semicircle, triangle.The utility model optimal way is that protruding 5 cross sections are right-angled trapezium; For the ease of the valve seat valve seat supporting base 2 of packing into, the long base of described right-angled trapezium is positioned at the inner ring surface of valve body 1 or/and on the outer ring surface, and tiltedly waist is towards valve body 1 side 4 of packing into, and described " side 4 of packing into " refers to insert circular groove 3 one sides.
For the ease of the inserted valve seat of the ball valve circular groove 3 of packing into, the oblique waist of described right-angled trapezium is 15 degree with long base angle.
Projection 5 quantity can one also can be a plurality of, and the utility model optimal way is that the inner ring surface of valve body 1 is or/and be provided with two projections 5 along valve body 1 axial direction on the outer ring surface.
Claims (5)
1. the inserted valve seat of ball valve, the valve body (1) that comprises annular, valve body (1) is fixed in the circular groove (3) that is arranged on the valve seat supporting base (2), the inner ring surface of valve body (1) and outer ring surface and circular groove (3) interference fit is characterized in that: the inner ring surface of valve body (1) is or/and be provided with projection (5) on the outer ring surface.
2. the inserted valve seat of ball valve according to claim 1 is characterized in that: described projection (5) is the annular protrusion concentric with valve body (1).
3. the inserted valve seat of ball valve according to claim 2, it is characterized in that: described projection (5) cross section is right-angled trapezium; The long base of described right-angled trapezium is positioned at the inner ring surface of valve body (1) or/and outer ring surface, and tiltedly waist is towards valve body (1) side (4) of packing into.
4. the inserted valve seat of ball valve according to claim 3 is characterized in that: the oblique waist of described right-angled trapezium is 15 degree with long base angle.
5. the inserted valve seat of ball valve according to claim 4, it is characterized in that: the inner ring surface of valve body (1) is or/and be provided with two projections (5) along valve body (1) axial direction on the outer ring surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204557398U CN202812282U (en) | 2012-09-07 | 2012-09-07 | Ball valve embedded valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204557398U CN202812282U (en) | 2012-09-07 | 2012-09-07 | Ball valve embedded valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202812282U true CN202812282U (en) | 2013-03-20 |
Family
ID=47871152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204557398U Expired - Lifetime CN202812282U (en) | 2012-09-07 | 2012-09-07 | Ball valve embedded valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202812282U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321880A (en) * | 2016-10-27 | 2017-01-11 | 苏州纽威阀门股份有限公司 | Sealing structure for seal valve |
-
2012
- 2012-09-07 CN CN2012204557398U patent/CN202812282U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321880A (en) * | 2016-10-27 | 2017-01-11 | 苏州纽威阀门股份有限公司 | Sealing structure for seal valve |
| CN106321880B (en) * | 2016-10-27 | 2019-04-09 | 苏州纽威阀门股份有限公司 | A kind of sealing structure for sealing valve sealing |
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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: 20130320 |