CN206943442U - A kind of three-eccentric-butterfly-valve - Google Patents
A kind of three-eccentric-butterfly-valve Download PDFInfo
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- CN206943442U CN206943442U CN201720386564.2U CN201720386564U CN206943442U CN 206943442 U CN206943442 U CN 206943442U CN 201720386564 U CN201720386564 U CN 201720386564U CN 206943442 U CN206943442 U CN 206943442U
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Abstract
The utility model discloses a kind of three-eccentric-butterfly-valve, including valve body, the valve body includes multiple annular plates in inner barrel, outer cylinder body and the space that is arranged between the outer wall of inner barrel and the inside of outer cylinder body, annular plate is circumferentially disposed around inner barrel and outer cylinder body, makes have multiple marker spaces between inner barrel and outer cylinder body.Multiple dividing plates are provided with marker space, the both ends of each dividing plate are connected with two neighboring annular plate respectively, make to improve the integral rigidity and non-deformability of valve body in crisscross latticed between inner barrel and outer cylinder body.The utility model is also provided with the dual floating space of sealing pair, realizes preferable sealing effectiveness.Solve the problems, such as to produce loosening after reducing because of the external load of screw head by using double holding screws.
Description
Technical field
It the utility model is related to valve technology field, more particularly to a kind of three-eccentric-butterfly-valve.
Background technology
Three-eccentric-butterfly-valve is a kind of valve rod axle center while deviates disk center and body central, and sealing pair is the butterfly of oblique vertebra
Valve.
The worst hot case of traditional super large caliber is poor with butterfly valve non-deformability, and under worst hot case, valve body can produce
Raw irregular deformation, thus the sealing property of valve is had adverse effect on, even result in valve seal failure.
Utility model content
In view of the drawbacks described above of prior art, technical problem to be solved in the utility model is to provide a kind of resistance to deformation
Ability is strong, the three-eccentric-butterfly-valve of good seal performance.
To achieve the above object, the utility model provides a kind of three-eccentric-butterfly-valve, including valve body, and the valve body includes inner cylinder
Multiple annular plates in body, outer cylinder body and the space that is arranged between the outer wall of inner barrel and the inside of outer cylinder body, circumferential rib
Plate is circumferentially disposed around inner barrel and outer cylinder body, makes have multiple marker spaces between inner barrel and outer cylinder body.
Further, be provided with multiple dividing plates in marker space, the both ends of each dividing plate respectively with two neighboring circumferential rib
Plate connects, and makes between inner barrel and outer cylinder body in crisscross latticed.
Further, three-eccentric-butterfly-valve also includes butterfly plate and valve shaft, and the end of valve shaft and valve body is rotatably coupled, and with
Butterfly plate is fixedly connected, and valve shaft can rotate under the drive of drive mechanism, so that butterfly plate rotates, to realize the keying of valve.
Further, three-eccentric-butterfly-valve also includes sealing pair, and sealing pair includes valve seat and seal, and valve seat is arranged on valve body
End, seal is arranged on the end of butterfly plate, when valve shaft, which drives butterfly plate to rotate, seal is coordinated with valve base sealing, valve body
It is closed.
Further, the contact surface of the valve seat and the seal is the conical surface, the conical surface of valve seat and the conical surface of seal
Sealing coordinates the closing for realizing valve.
Further, the end of butterfly plate is additionally provided with pressing plate, and pressing plate is fixedly connected by screw with the end of butterfly plate, pressing plate
The first groove is formed with the end of butterfly plate, seal can adjust pressing plate to close in the first groove by adjusting screw
The compression degree of sealing.
Further, there is gap between the bottom of seal and the first groove.
Further, the end of valve body is additionally provided with pendant collet and trim ring, and pendant collet and trim ring are embedded in the end of valve body
The end of portion, trim ring and valve body forms the second groove, and valve seat is embedded in the second groove.
Further, screw group is provided with pendant collet, screw group directly can apply load to trim ring, so as to trim ring pair
Valve seat applies load.
Further, screw group includes the first screw and the second screw, and bullet is provided between the first screw and the second screw
Property pad.
Further, there is gap between the bottom of valve seat and the second groove.
In better embodiment of the present utility model, a kind of three-eccentric-butterfly-valve, including valve body, the valve body include inner cylinder
Multiple annular plates in body, outer cylinder body and the space that is arranged between the outer wall of inner barrel and the inside of outer cylinder body, circumferential rib
Plate is circumferentially disposed around inner barrel and outer cylinder body, makes have multiple marker spaces between inner barrel and outer cylinder body.In marker space
Multiple dividing plates are provided with, the both ends of each dividing plate are connected with two neighboring annular plate, made between inner barrel and outer cylinder body respectively
In crisscross latticed.The three-eccentric-butterfly-valve also includes butterfly plate, valve shaft and sealing pair, and the end of valve shaft and valve body is rotatable
Ground connects, and is fixedly connected with butterfly plate.Sealing pair includes valve seat and seal, and valve seat is arranged on the end of valve body, and seal is set
Putting can rotate in the end of butterfly plate, valve shaft under the drive of drive mechanism, so that butterfly plate rotates, to realize opening for valve
Close.When valve shaft, which drives butterfly plate to rotate, seal is coordinated with valve base sealing, valve body is closed.
In another better embodiment of the present utility model, the end of butterfly plate is additionally provided with pressing plate, and pressing plate passes through screw
It is fixedly connected with the end of butterfly plate, the end of pressing plate and butterfly plate forms the first groove, and seal passes through in the first groove
Adjusting screw can adjust compression degree of the pressing plate to seal.There is gap between the bottom of seal and the first groove.Valve
The end of body is additionally provided with pendant collet and trim ring, and pendant collet and trim ring are embedded in the end of the end of valve body, trim ring and valve body
The second groove is formed, valve seat is embedded in the second groove, has gap between the bottom of valve seat and the second groove.Set in pendant collet
Screw group is equipped with, screw group directly can apply load to trim ring, so as to which trim ring applies load to valve seat.Screw group includes first
Screw and the second screw, elastomeric pad is provided between the first screw and the second screw.
Three-eccentric-butterfly-valve of the present utility model has advantages below：
(1) valve body uses the welding structural element of double shell (inner barrel and outer cylinder body), and multiple tracks ring is used between inside and outside cylinder
Floor is separated, and is circumferentially evenly arranged diaphragm plate in each marker space so that is presented in the double shell of valve body and is handed in length and breadth
Wrong is latticed, improves the integral rigidity of valve body, valve body welding structural element is had very strong non-deformability, Neng Goucheng
By larger pipe deforming load without producing obvious deformation, so as to ensure that valve reliably works.
(2) the utility model sets gap (i.e. floating space) between valve seat and valve body, between seal and butterfly plate, protects
Having demonstrate,proved valve seat or seal has enough floating spaces so that valve close when by the dual floating of valve seat and seal come
The binding site of sealing pair (valve seat and seal) is adjusted, so as to reach preferable sealing effectiveness.
(3) in order to solve the problems, such as generation loosening after the external load reduction because of screw head, the utility model is using double
Holding screw (including the first screw and second screw), and increase elastomeric pad between the first screw and the second screw, rely on
The effect of elastomeric pad makes to produce enough axial tensile forces between two screws to reach the effect of screw thread self-locking, therefore even if
Screw will not also loosen after load on trim ring eliminates.
Design, concrete structure and caused technique effect of the present utility model are made furtherly below with reference to accompanying drawing
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Brief description of the drawings
Fig. 1 is the front view of the three-eccentric-butterfly-valve of a preferred embodiment of the present utility model；
Fig. 2 is Fig. 1 top view；
Fig. 3 is Fig. 1 left view；
Fig. 4 is Fig. 3 partial enlarged drawing；
Fig. 5 is Fig. 4 partial enlarged drawing.
Embodiment
As shown in Fig. 1~5, a preferred embodiment of the present utility model provides a kind of three-eccentric-butterfly-valve, including valve body
1, the valve body 1 includes inner barrel 11, outer cylinder body 12 and the sky being arranged between the outer wall of inner barrel 11 and the inside of outer cylinder body 12
In multiple annular plates 13, annular plate 13 is circumferentially disposed around inner barrel 11 and outer cylinder body 12, makes the He of inner barrel 11
There are multiple marker spaces between outer cylinder body 12.Be provided with multiple dividing plates 14 in marker space, the both ends of each dividing plate 14 respectively with
Two neighboring annular plate 13 connects, and makes to improve valve body 1 in crisscross latticed between inner barrel 11 and outer cylinder body 12
Integral rigidity, make the welding structural element of valve body 1 that there is very strong non-deformability, larger pipe deforming load can be born
Without producing obvious deformation, so as to ensure that valve reliably works.
The three-eccentric-butterfly-valve also includes butterfly plate 2, valve shaft 3 and sealing pair, and the end of valve shaft 3 and valve body 1 is rotatably coupled,
And it is fixedly connected with butterfly plate 2.Sealing pair includes valve seat 41 and seal 42, and in the present embodiment, seal 42 is sealing ring.Valve seat
41 are arranged on the end of valve body 1, and seal 42 is arranged on the end of butterfly plate 2, and valve shaft 3 can be in the drive backspin of drive mechanism
Turn, so that butterfly plate 2 rotates, to realize the keying of valve.Make seal 42 and valve seat 41 close when valve shaft 3 drives butterfly plate 2 to rotate
When envelope coordinates, valve body 1 is closed.
As shown in figure 4, the end of butterfly plate 2 is additionally provided with pressing plate 5, pressing plate 5 is fixed by the end of screw and butterfly plate 2 to be connected
Connect, the end of pressing plate 5 and butterfly plate 2 forms the first groove 51, and seal 42 passes through adjusting screw energy in the first groove 51
Enough adjust compression degree of the pressing plate 5 to seal 42.There is gap 52 between the bottom of the groove 51 of seal 42 and first.Valve body
1 end is additionally provided with pendant collet 6 and trim ring 7, and pendant collet 6 and trim ring 7 are embedded in the end of valve body 1, trim ring 7 and valve body 1
End formed the second groove 71, valve seat 41 be embedded in the second groove 71 in, have between the bottom of the groove 71 of valve seat 41 and second
There is gap 72.
The present embodiment is between valve seat 41 and valve body 1, sets gap (i.e. floating space) between seal 42 and butterfly plate 2,
It ensure that valve seat 41 or seal 42 have enough floating spaces so that pass through valve seat 41 and seal 42 when valve is closed
Dual floating adjusts the binding site of sealing pair (valve seat 41 and seal 42), so as to reaching preferable sealing effectiveness.
As shown in figure 5, being provided with screw group in pendant collet 6, screw group directly can apply load to trim ring 7, so as to press
7 pairs of valve seats 41 of circle apply load.In order to solve the problems, such as generation loosening after the external load reduction because of screw head, the present embodiment
Using double holding screws, i.e. screw group includes the first screw 61 and the second screw 62, between the first screw 61 and the second screw 62
It is provided with elastomeric pad 63.Make to produce enough axial tensile forces between two screws to reach by the effect of elastomeric pad 63
The effect of screw thread self-locking, therefore screw will not also loosen after the load elimination even if on trim ring 7.
Preferred embodiment of the present utility model described in detail above.It should be appreciated that the ordinary skill people of this area
Member makes many modifications and variations without creative work can according to design of the present utility model.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality on the basis of existing technology according to design of the present utility model in domain
Available technical scheme is tested, all should be in the protection domain being defined in the patent claims.
Claims (9)
1. a kind of three-eccentric-butterfly-valve, including valve body, it is characterised in that the valve body includes inner barrel, outer cylinder body and is arranged on institute
Multiple annular plates in the space between the outer wall of inner barrel and the inside of the outer cylinder body are stated, the annular plate surrounds institute
The circumferentially disposed of inner barrel and the outer cylinder body is stated, makes that there are multiple marker spaces between the inner barrel and the outer cylinder body；
Multiple dividing plates are provided with the marker space, the both ends of each dividing plate are connected with the two neighboring annular plate respectively,
Make between the inner barrel and the outer cylinder body in crisscross latticed.
2. three-eccentric-butterfly-valve according to claim 1, it is characterised in that the three-eccentric-butterfly-valve also includes butterfly plate and valve
Axle, the end of the valve shaft and the valve body are rotatably coupled, and are fixedly connected with the butterfly plate, and the valve shaft can drive
Rotated under the drive of motivation structure, so that the butterfly plate rotates, to realize the keying of valve.
3. three-eccentric-butterfly-valve according to claim 2, it is characterised in that the three-eccentric-butterfly-valve also includes sealing pair, institute
Stating sealing pair includes valve seat and seal, and the valve seat is arranged on the end of the valve body, and the seal is arranged on the butterfly
The end of plate, when the valve shaft, which drives the butterfly plate to rotate, the seal is coordinated with the valve base sealing, the valve body
It is closed.
4. three-eccentric-butterfly-valve according to claim 3, it is characterised in that the end of the butterfly plate is additionally provided with pressing plate, institute
Pressing plate to be stated to be fixedly connected with the end of the butterfly plate by screw, the end of the pressing plate and the butterfly plate forms the first groove,
The seal can adjust the pressing plate to the seal in first groove by adjusting the screw
Compression degree.
5. three-eccentric-butterfly-valve according to claim 4, it is characterised in that the bottom of the seal and first groove
Between there is gap.
6. three-eccentric-butterfly-valve according to claim 3, it is characterised in that the end of the valve body be additionally provided with pendant collet and
Trim ring, the pendant collet and the trim ring are embedded in the end of the valve body, and the end of the trim ring and the valve body is formed
Second groove, the valve seat are embedded in second groove.
7. three-eccentric-butterfly-valve according to claim 6, it is characterised in that screw group is provided with the pendant collet, it is described
Screw group directly can apply load to the trim ring, so as to which the trim ring applies load to the valve seat.
8. three-eccentric-butterfly-valve according to claim 7, it is characterised in that the screw group includes the first screw and the second spiral shell
Nail, elastomeric pad is provided between first screw and second screw.
9. three-eccentric-butterfly-valve according to claim 6, it is characterised in that the bottom of the valve seat and second groove it
Between there is gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720386564.2U CN206943442U (en) | 2017-04-13 | 2017-04-13 | A kind of three-eccentric-butterfly-valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720386564.2U CN206943442U (en) | 2017-04-13 | 2017-04-13 | A kind of three-eccentric-butterfly-valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206943442U true CN206943442U (en) | 2018-01-30 |
Family
ID=61359249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720386564.2U Active CN206943442U (en) | 2017-04-13 | 2017-04-13 | A kind of three-eccentric-butterfly-valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN206943442U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357024A (en) * | 2018-11-30 | 2019-02-19 | 江南阀门有限公司 | Double floating sealing structures |
| WO2021077710A1 (en) * | 2019-10-23 | 2021-04-29 | 江苏神通阀门股份有限公司 | Triple eccentric metal sealing butterfly valve structure capable of replacing sealing pair on line |
-
2017
- 2017-04-13 CN CN201720386564.2U patent/CN206943442U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357024A (en) * | 2018-11-30 | 2019-02-19 | 江南阀门有限公司 | Double floating sealing structures |
| WO2021077710A1 (en) * | 2019-10-23 | 2021-04-29 | 江苏神通阀门股份有限公司 | Triple eccentric metal sealing butterfly valve structure capable of replacing sealing pair on line |
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