CN207034226U - A kind of butterfly valve seat - Google Patents
A kind of butterfly valve seat Download PDFInfo
- Publication number
- CN207034226U CN207034226U CN201720957961.0U CN201720957961U CN207034226U CN 207034226 U CN207034226 U CN 207034226U CN 201720957961 U CN201720957961 U CN 201720957961U CN 207034226 U CN207034226 U CN 207034226U
- Authority
- CN
- China
- Prior art keywords
- convex portion
- shaped convex
- wedge
- annular body
- hole
- 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
A kind of butterfly valve seat is the utility model is related to, belongs to valve technology field.The valve seat includes annular body, the upper end of the annular body is provided with the upper through hole for being used for wearing axle, the lower end of the annular body is provided with the lower through-hole for being used for wearing lower axle, the upper through hole and lower through-hole be located at annular body it is same radially, a circle seal groove is equipped with the upper through hole and lower through-hole, dismountable sealing ring is installed in the seal groove；The inner of the upper through hole is provided with the upper sphere for being used for sealing butterfly plate upper end, the inner of the lower through-hole is provided with the lower peripheral surface for being used for sealing butterfly plate lower end, the side of inner circumferential one of the annular body is provided with a preceding wedge-shaped convex portion for being used to seal the side of butterfly plate one, another side of inner circumferential of the annular body is provided with a rear wedge-shaped convex portion for being used to seal another side of butterfly plate, the Central Symmetry of the preceding wedge-shaped convex portion and rear wedge-shaped convex portion on annular body.The sealing ring is easy to disassembling, assembling and replacing, extends the service life of valve seat.
Description
Technical field
The utility model belongs to valve technology field, and in particular to a kind of butterfly valve seat.
Background technology
Butterfly valve is rotated by the butterfly plate in valve seat around valve shaft to reach a kind of regulating valve of open and close, extensive use
Controlled in the flow of fluids within pipes medium, it is main to play cut-out and throttling action.Existing seat design is unreasonable, itself and valve shaft
Sealing structure be usually directly to design with valve seat sheet, once seal structure damage, fluid media (medium) in pipeline will be from
Valve shaft installation place leaks out, and greatly reduces the service life of valve seat, and the cost for changing whole valve seat is higher.In addition, valve
Seat is also unreliable with the sealing fit structure of butterfly plate, easily reveals.
Utility model content
In view of the deficiencies in the prior art, technical problem to be solved in the utility model is to provide a kind of reasonable in design, close
Envelope is reliable, the butterfly valve seat of service life length.
In order to solve the above technical problems, the technical solution of the utility model is：A kind of butterfly valve seat, including annular sheet
Body, the upper end of the annular body are provided with the upper through hole for being used for wearing axle, and the lower end of the annular body, which is provided with, to be used for
The lower through-hole of lower axle is worn, the upper through hole and lower through-hole are located in the same diametric(al) of annular body, the upper through hole
With a circle seal groove is equipped with lower through-hole, dismountable sealing ring is installed in the seal groove；The inner of the upper through hole
Provided with the upper sphere for sealing butterfly plate upper end, the inner of the lower through-hole is provided with the lower peripheral surface for being used for sealing butterfly plate lower end, institute
The side of inner circumferential one for stating annular body is provided with a preceding wedge-shaped convex portion for being used to seal the side of butterfly plate one, the annular body
Another side of inner circumferential be provided with one and be used to seal the rear wedge-shaped convex portion of another side of butterfly plate, the preceding wedge-shaped convex portion and rear wedge shape
Central Symmetry of the convex portion on annular body.
Preferably, the width of the preceding wedge-shaped convex portion and rear wedge-shaped convex portion is gradually reduced by respective centre to both ends.
Preferably, the thickness of the preceding wedge-shaped convex portion and rear wedge-shaped convex portion is by respective two lateral middle gradually increases.
Preferably, the leading flank of the preceding wedge-shaped convex portion is connected smoothly to form preceding sealed working face with middle top surface,
The trailing flank of wedge-shaped convex portion is connected smoothly to form rear sealed working face with middle top surface after described.
Preferably, the side with upper sphere, a side of lower peripheral surface are smooth respectively at the both ends of the preceding sealed working face
Transition connects, and another side with upper sphere, another side of lower peripheral surface are smoothed respectively at the both ends of the rear sealed working face
Cross connection.
Preferably, the leading flank of the preceding wedge-shaped convex portion is arc surface, and the middle top surface of the preceding wedge-shaped convex portion is plane,
The trailing flank of the preceding wedge-shaped convex portion is inclined-plane；The trailing flank of wedge-shaped convex portion is arc surface after described, the rear wedge-shaped convex portion
Middle top surface is plane, and the leading flank of the rear wedge-shaped convex portion is inclined-plane.
Preferably, the periphery of the annular body is provided with the T-shaped groove that a circle is engaged with the T-shaped boss in valve body,
The edge of the T-shaped groove is equipped with rounding.
Preferably, a circle is provided among the bottom of the T-shaped groove with what the detent among T-shaped boss was engaged to determine
Position convex portion, the edge of the positioning convex portion are equipped with rounding.
Preferably, it is equipped with chamfering at the both ends open of the annular body.
Preferably, the material of the annular body and sealing ring is rubber.
Compared with prior art, the utility model has the advantages that：The valve seat is using two dismountable sealings
The circle upper axle of reliable sealing and lower axle respectively, are easy to disassembling, assembling and replacing sealing ring, extend the overall service life of valve seat, reduce use into
This；Butterfly plate is reliably sealed cooperation with valve seat using upper and lower two spheres and former and later two wedge-shaped convex portions, improve the essence of butterfly valve
Degree and sensitivity, guarantee are not revealed.
Brief description of the drawings
Fig. 1 is the front view of the utility model embodiment.
Fig. 2 is the sectional view at A-A in Fig. 1.
Fig. 3 is the enlarged drawing at C in Fig. 2.
Fig. 4 is the sectional view at B-B in Fig. 1.
Fig. 5 is the enlarged drawing at D in Fig. 4.
Marked in figure：100th, annular body；110th, upper through hole；111st, upper sphere, 120, lower through-hole；121st, lower peripheral surface；
130th, preceding wedge-shaped convex portion；131st, the leading flank of preceding wedge-shaped convex portion；132nd, the middle top surface of preceding wedge-shaped convex portion；133rd, preceding wedge-shaped convex portion
Trailing flank；134th, preceding sealed working face；140th, rear wedge-shaped convex portion；141st, the trailing flank of rear wedge-shaped convex portion；142nd, rear wedge shape is convex
The middle top surface in portion；143rd, the leading flank of rear wedge-shaped convex portion；144th, rear sealed working face；150th, seal groove；160th, T-shaped groove；
161st, positioning convex portion；200th, sealing ring.
Embodiment
In order to allow features described above and advantage of the present utility model to become apparent, below especially exemplified by embodiment, and coordinate accompanying drawing,
It is described in detail below.
As shown in Figures 1 to 5, a kind of butterfly valve seat, including annular body 100, the upper end of the annular body 100
Provided with the upper through hole 110 for wearing upper axle, the lower end of the annular body 100 is provided with the lower through-hole for being used for wearing lower axle
120, the upper through hole 110 and lower through-hole 120 are located in the same diametric(al) of annular body 100, the upper He of through hole 110
A circle seal groove 150 is equipped with lower through-hole 120, dismountable sealing ring 200 is installed in the seal groove 150；On described
The inner of through hole 110 is provided with the upper sphere 111 for being used for sealing butterfly plate upper end, and the inner of the lower through-hole 120, which is provided with, to be used to seal
The lower peripheral surface 121 of butterfly plate lower end, the side of inner circumferential one of the annular body 100 are provided with one and are used to seal the side of butterfly plate one
Preceding wedge-shaped convex portion 130, another side of inner circumferential of the annular body 100 are provided with one and are used for after sealing another side of butterfly plate
Wedge-shaped convex portion 140, the Central Symmetry of the preceding wedge-shaped convex portion 130 and rear wedge-shaped convex portion 140 on annular body 100.
In the present embodiment, the width of the preceding wedge-shaped convex portion 130 and rear wedge-shaped convex portion 140 by respective centre to two
End is gradually reduced, and the thickness of the preceding wedge-shaped convex portion 130 and rear wedge-shaped convex portion 140 is by respective two lateral middle gradually increasings
Greatly, it is reasonable in design, convenient production.
In the present embodiment, the leading flank 131 of the preceding wedge-shaped convex portion 130 and middle top surface 132 are connected smoothly shape
Into preceding sealed working face 134, the trailing flank 141 of the rear wedge-shaped convex portion 140 and middle top surface 142 are connected smoothly after being formed
Sealed working face 144.
In the present embodiment, the both ends of the preceding sealed working face 134 side, the lower peripheral surface with upper sphere 111 respectively
121 side is connected smoothly, it is described after sealed working face 144 both ends respectively another side with upper sphere 111, under
Another side of sphere 121 is connected smoothly, and makes the week side of boss of butterfly plate and seat leakage good.
In the present embodiment, the leading flank 131 of the preceding wedge-shaped convex portion 130 is arc surface, the preceding wedge-shaped convex portion 130
Middle top surface 132 is plane, and the trailing flank 133 of the preceding wedge-shaped convex portion 130 is inclined-plane；The rear side of wedge-shaped convex portion 140 after described
Face 141 is arc surface, and the middle top surface 142 of the rear wedge-shaped convex portion 140 is plane, the leading flank of the rear wedge-shaped convex portion 140
143 be inclined-plane.
During closing, the arc surface of a side of butterfly plate wedge-shaped convex portion 130 in the past rotates to plane, and another side is from rear wedge shape
The arc surface of convex portion 140 rotates to plane, and the cooperation of butterfly plate and valve seat gradually becomes tight, good airproof performance；During opening, one side of butterfly plate
The Plane Rotation of side wedge-shaped convex portion 130 in the past is to arc surface, and another side is from the Plane Rotation of rear wedge-shaped convex portion 140 to circular arc
Gradually fluffing for face, butterfly plate and valve seat, it is easily laborsaving.
In the present embodiment, valve seat is fixedly mounted in valve body for convenience, the periphery of the annular body 100 is set
There is the T-shaped groove 160 that a circle is engaged with the T-shaped boss in valve body, the edge of the T-shaped groove 160 is equipped with rounding.
In order that the fixed installation structure between valve seat and valve body is more reliable, a circle and T are provided among the bottom of the T-shaped groove 160
The positioning convex portion 161 that detent among shape boss is engaged, the edge of the positioning convex portion 161 are equipped with rounding.
In the present embodiment, for the ease of installing butterfly plate, it is equipped with down at the both ends open of the annular body 100
Angle.The material of the annular body 100 and sealing ring 160 is rubber, and the annular body 100 is preferably but not limited to
EPDM materials, the sealing ring 160 are preferably but not limited to NBR materials.
It is described above, preferred embodiment only of the present utility model, any formal limit is not done to the utility model
System, any those skilled in the art are in every case without departing from the content of technical solutions of the utility model, according to the utility model
Technical spirit any simple modification, equivalent changes and modifications are made to above example, should all belong to culvert of the present utility model
Lid scope.
Claims (10)
1. a kind of butterfly valve seat, including annular body, it is characterised in that：The upper end of the annular body, which is provided with, to be used to wear
The upper through hole of upper axle, the lower end of the annular body are provided with the lower through-hole for being used for wearing lower axle, the upper through hole and lower through-hole
In the same diametric(al) of annular body, a circle seal groove, the sealing are equipped with the upper through hole and lower through-hole
Dismountable sealing ring is installed in groove；The inner of the upper through hole is provided with the upper sphere for being used for sealing butterfly plate upper end, under described
The inner of through hole is provided with the lower peripheral surface for being used for sealing butterfly plate lower end, and the side of inner circumferential one of the annular body is used for provided with one
The preceding wedge-shaped convex portion of the side of butterfly plate one is sealed, another side of inner circumferential of the annular body is another for sealing butterfly plate provided with one
The rear wedge-shaped convex portion of one side, the Central Symmetry of the preceding wedge-shaped convex portion and rear wedge-shaped convex portion on annular body.
2. butterfly valve seat according to claim 1, it is characterised in that：The preceding wedge-shaped convex portion and the width of rear wedge-shaped convex portion
It is gradually reduced by respective centre to both ends.
3. butterfly valve seat according to claim 2, it is characterised in that：The preceding wedge-shaped convex portion and the thickness of rear wedge-shaped convex portion
By respective two lateral middle gradually increases.
4. butterfly valve seat according to claim 3, it is characterised in that：The leading flank and middle top surface of the preceding wedge-shaped convex portion
It is connected smoothly to form preceding sealed working face, the trailing flank of the rear wedge-shaped convex portion is connected smoothly to be formed with middle top surface
Sealed working face afterwards.
5. butterfly valve seat according to claim 4, it is characterised in that：The both ends of the preceding sealed working face respectively with upper ball
One side in face, a side of lower peripheral surface are connected smoothly, and the both ends of the rear sealed working face are another with upper sphere respectively
One side, another side of lower peripheral surface are connected smoothly.
6. butterfly valve seat according to claim 4, it is characterised in that：The leading flank of the preceding wedge-shaped convex portion is arc surface,
The middle top surface of the preceding wedge-shaped convex portion is plane, and the trailing flank of the preceding wedge-shaped convex portion is inclined-plane；Wedge-shaped convex portion after described
Trailing flank is arc surface, and the middle top surface of the rear wedge-shaped convex portion is plane, and the leading flank of the rear wedge-shaped convex portion is inclined-plane.
7. butterfly valve seat according to claim 1, it is characterised in that：The periphery of the annular body is provided with a circle and valve
The T-shaped groove that internal T-shaped boss are engaged, the edge of the T-shaped groove are equipped with rounding.
8. butterfly valve seat according to claim 7, it is characterised in that：A circle and T are provided among the bottom of the T-shaped groove
The positioning convex portion that detent among shape boss is engaged, the edge of the positioning convex portion are equipped with rounding.
9. butterfly valve seat according to claim 1, it is characterised in that：It is equipped with the both ends open of the annular body
Chamfering.
10. butterfly valve seat according to claim 1, it is characterised in that：The material of the annular body and sealing ring is equal
For rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720957961.0U CN207034226U (en) | 2017-08-02 | 2017-08-02 | A kind of butterfly valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720957961.0U CN207034226U (en) | 2017-08-02 | 2017-08-02 | A kind of butterfly valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207034226U true CN207034226U (en) | 2018-02-23 |
Family
ID=61474137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720957961.0U Expired - Fee Related CN207034226U (en) | 2017-08-02 | 2017-08-02 | A kind of butterfly valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207034226U (en) |
-
2017
- 2017-08-02 CN CN201720957961.0U patent/CN207034226U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180223 Termination date: 20210802 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |