CN210566315U - Elastic compensation type butterfly valve with movable valve seat - Google Patents
Elastic compensation type butterfly valve with movable valve seat Download PDFInfo
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- CN210566315U CN210566315U CN201920967160.1U CN201920967160U CN210566315U CN 210566315 U CN210566315 U CN 210566315U CN 201920967160 U CN201920967160 U CN 201920967160U CN 210566315 U CN210566315 U CN 210566315U
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- valve
- sealing ring
- seat
- valve seat
- butterfly
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Abstract
The utility model discloses a valve seat movable elastic compensation type butterfly valve, wherein a sealing ring mounting groove is arranged on the end surface of a butterfly plate facing to a valve seat, a first sealing ring is arranged in the sealing ring mounting groove, the first sealing ring is provided with a first inclined surface facing to the valve seat, and the valve seat is provided with a second inclined surface which is in sealing fit with the first inclined surface in a propping manner towards the first sealing ring; the valve seat is provided with a first step in a protruding mode on the end face of the valve body, a pressing sleeve is arranged outside the valve seat, a second step is arranged on the pressing sleeve in a protruding mode on the valve seat, the first step is provided with a butt wall which is abutted to the second step, a second groove is formed in the butt wall, a compression spring is arranged in the second groove, and the compression spring extrudes the first limiting wall of the valve seat. The beneficial effects of the utility model are that be equipped with between valve body and the first step and remove the clearance, first inclined plane extrusion second inclined plane makes the disk seat remove along deviating from the valve body direction, has reduced the friction between first inclined plane and the second inclined plane, has also reduced the operating torque moment.
Description
Technical Field
The utility model relates to a valve field, in particular to portable elastic compensation type butterfly valve of disk seat.
Background
The butterfly valve is also called a flap valve, is a regulating valve with simple structure, and can be used for on-off control of pipeline media. The opening and closing piece of the butterfly valve is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved. The butterfly valve includes valve body, valve rod and butterfly plate usually, and the butterfly plate and the disk seat of present butterfly valve adopt fixed seal structure usually, and this makes and opens and close the in-process butterfly plate and produces great frictional force between disk seat, and increase operation moment of torsion makes sealing washer and disk seat on the butterfly plate receive wearing and tearing, and the leakproofness variation to influence the life of butterfly valve.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a butterfly valve of sealed effectual, the portable elasticity compensation type of disk seat.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme: the utility model provides a portable elasticity compensation type butterfly valve of disk seat, includes valve body, valve rod and butterfly plate, be equipped with the runner in the valve body, the valve rod drive butterfly plate rotatory control runner cuts off or circulates in the runner, be equipped with the disk seat between valve body and the butterfly plate, the disk seat is equipped with outward and fixes the pressure cover on the valve body with the disk seat, its characterized in that: a sealing ring mounting groove is formed in the end face, facing the valve seat, of the butterfly plate, a first sealing ring is arranged in the sealing ring mounting groove, a pressing plate for fixing the first sealing ring on the butterfly plate is arranged outside the first sealing ring, a first inclined surface is arranged on the first sealing ring, facing the valve seat, and a second inclined surface which is in abutting sealing fit with the first inclined surface is arranged on the valve seat, facing the first sealing ring; the valve seat is provided with a first step in a protruding mode on the end face, facing the valve body, of the valve seat, the valve body is provided with a first limiting wall for limiting the first step, a first groove is formed in the end face, facing the first limiting wall, of the valve seat, a second sealing ring is arranged in the first groove, and a moving gap is formed between the first limiting wall and the second sealing ring; the pressing sleeve is provided with a second step protruding towards the valve seat, the first step is provided with a butting wall which is abutted against the second step, a second groove is formed in the butting wall, a compression spring is arranged in the second groove, and the compression spring extrudes the first limiting wall of the valve seat.
By adopting the technical scheme, after the pressing sleeve is fixedly arranged on the valve body through the hexagon socket head cap screw, the compression spring in the first groove is extruded by the pressing sleeve to extrude the valve seat towards the valve body along the moving gap, the second sealing ring in the second groove is abutted against the first limiting wall to form sealing, the second inclined surface is abutted against the first inclined surface under the action of the compression spring when the butterfly plate cuts off the flow channel, and the valve seat is sealed with the first sealing ring; when the butterfly plate opens the flow channel, the first inclined plane extrudes the second inclined plane to enable the valve seat to move along the direction departing from the valve body due to the fact that a moving gap is formed between the valve body and the first step, friction between the first inclined plane and the second inclined plane is reduced, and operating torque is also reduced.
Further setting the following steps: the valve seat is provided with a second limiting wall towards the second bump, and the second limiting wall is perpendicular to the abutting wall.
Through adopting above-mentioned technical scheme, set up the spacing wall of second and make the second lug be arranged in butt joint wall and the spacing wall of second to make the cooperation between disk seat and the pressure cover more stable, the second lug is also more accurate to compression spring's effort.
Further setting the following steps: first sealing washer is including a polytetrafluoroethylene sealing washer and a metal seal circle that sets up side by side, the metal seal circle is located the sealing washer mounting groove outside, the polytetrafluoroethylene sealing washer is located sealing washer mounting groove is inboard.
Through adopting above-mentioned technical scheme, polytetrafluoroethylene sealing washer's leakproofness and corrosion resistance are good, and metal seal ring's high temperature resistant and stand wear and tear performance is better, sets up two sealing washers simultaneously in the sealing washer mounting groove, makes first sealing washer have advantage performance between them concurrently.
Further setting the following steps: the end face of the butterfly plate facing the first sealing ring is provided with an O-shaped sealing ring.
Through adopting above-mentioned technical scheme, set up O type circle and make the first inclined plane of first sealing washer offset towards the second inclined plane of disk seat, make the leakproofness better between disk seat and the butterfly plate.
Further setting the following steps: the end face, facing the valve seat, of the valve body is at least provided with two O-shaped sealing rings.
Through adopting above-mentioned technical scheme, set up O type circle and make the second inclined plane of disk seat offset towards the first inclined plane of first sealing washer, make the leakproofness better between disk seat and the butterfly plate.
Further setting the following steps: the pressing plate is fixed with the butterfly plate through the inner hexagon screws.
Through adopting above-mentioned technical scheme, can dismantle fixed connection, convenient maintenance with clamp plate and butterfly plate.
Further setting the following steps: the pressing sleeve is fixed with the valve body through a socket head cap screw.
Through adopting above-mentioned technical scheme, will press cover and valve body to dismantle fixed connection, convenient maintenance.
Drawings
FIG. 1 is a schematic structural diagram of the present embodiment;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is a schematic view of a valve seat in the present embodiment;
in the figure: 1. a valve body; 2. a valve stem; 3. a butterfly plate; 4. a flow channel; 5. a valve seat; 6. pressing the sleeve; 7. a sealing ring mounting groove; 8. a first seal ring; 801. a polytetrafluoroethylene seal ring; 802. a metal seal ring; 9. pressing a plate; 10. a first inclined plane; 11. a second inclined plane; 12. a first step; 13. a first limiting wall; 14. a first groove; 15. a second seal ring; 16. moving the gap; 17. a second step; 18. an abutment wall; 19. a second groove; 20. a compression spring; 21. a second limiting wall; 22. an O-shaped sealing ring; 23. a socket head cap screw; 24. a handwheel.
Detailed Description
In order to make the technical solution of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. The directional and positional terms, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., refer only to the directions and positions of the accompanying drawings, and thus, the present invention will be described and understood with reference to the directional and positional terms, and it is to be understood that the embodiments described herein are only for purposes of illustration and understanding, and are not intended to limit the present invention.
Referring to fig. 1 to 3, the utility model provides a removable elasticity compensation type butterfly valve of disk seat 5, including valve body 1, valve rod 2 and butterfly plate 3, the outer end that valve rod 2 is located valve body 1 is equipped with drive valve rod 2 pivoted hand wheel 24, is equipped with runner 4 in the valve body 1, and butterfly plate 3 is located runner 4, and valve rod 2 is fixed with butterfly plate 3 for the other end of hand wheel 24. The valve rod 2 drives the butterfly plate 3 to rotate in the flow channel 4 to control the flow channel 4 to cut off or circulate, a valve seat 5 is arranged between the valve body 1 and the butterfly plate 3, a pressing sleeve 6 for fixing the valve seat 5 on the valve body 1 is arranged outside the valve seat 5, and the pressing sleeve 6 is fixed with the valve body 1 through an inner hexagon screw 23. The butterfly plate 3 has seted up sealing washer mounting groove 7 on the terminal surface towards disk seat 5, be equipped with first sealing washer 8 in the sealing washer mounting groove 7, first sealing washer 8 is equipped with outward and fixes its clamp plate 9 on butterfly plate 3, clamp plate 9 is fixed with butterfly plate 3 through hexagon socket head cap screw 23. The first sealing ring 8 is provided with a first inclined surface 10 facing the valve seat 5, and the valve seat 5 is provided with a second inclined surface 11 which is in abutting sealing fit with the first inclined surface 10 facing the first sealing ring 8; a first step 12 is convexly arranged on the end face, facing the valve body 1, of the valve seat 5, a first limiting wall 13 for limiting the first step 12 is arranged on the valve body 1, a first groove 14 is formed in the end face, facing the first limiting wall 13, of the valve seat 5, a second sealing ring 15 is arranged in the first groove 14, and a moving gap 16 is formed between the first limiting wall 13 and the second sealing ring 15; the pressure sleeve 6 is provided with a second step 17 protruding towards the valve seat 5, the first step 12 is provided with a butting wall 18 abutting against the second step 17, the butting wall 18 is provided with a second groove 19, a compression spring 20 is arranged in the second groove 19, and the compression spring 20 extrudes the valve seat 5 with the first limiting wall 13. The valve seat 5 is provided with a second limiting wall 21 facing the second bump, and the second limiting wall 21 is perpendicular to the abutting wall 18.
Specifically, first sealing washer 8 is including a polytetrafluoroethylene sealing washer 801 and a metal seal ring 802 that set up side by side, metal seal ring 802 is located the 7 outsides of sealing washer mounting groove, polytetrafluoroethylene sealing washer 801 is located 7 inboards of sealing washer mounting groove.
Furthermore, the end face of the butterfly plate 3 facing the first sealing ring 8 is provided with an O-ring 22, and the end face of the valve body 1 facing the valve seat 5 is provided with two O-rings 22. The three O-shaped rings extrude the first inclined surface 10 and the second inclined surface 11 oppositely, so that sealing is formed between the valve group and the polytetrafluoroethylene sealing ring 801 and the metal sealing ring 802.
By arranging the compression spring 20, the compression spring 20 is extruded by the second step 17 of the pressing sleeve 6 to extrude the valve seat 5 towards the valve body 1 along the moving gap 16, the second sealing ring 15 in the second groove 19 is abutted against the first limiting wall 13 to form sealing, the second inclined plane 11 is abutted against the first inclined plane 10 under the action of the compression spring 20 when the butterfly plate 3 cuts off the flow channel 4, and the valve seat 5 and the first sealing ring 8 form sealing; when the butterfly plate 3 opens the flow passage 4, because the movable gap 16 is arranged between the valve body 1 and the first step 12, the first inclined surface 10 extrudes the second inclined surface 11 to enable the valve seat 5 to move along the direction departing from the valve body 1, so that the friction between the first inclined surface 10 and the second inclined surface 11 is reduced, and the operation torque is also reduced. Elasticity compensation based on the movement gap 16 and the compression spring 20 can reduce the friction between the first sealing ring 8 and the valve seat 5 in the process of rotating the butterfly plate 3, and can keep better sealing performance when the flow channel 4 is closed, so that the butterfly valve is convenient to open and close and the service life of the butterfly valve is prolonged on the premise of ensuring the sealing performance of the butterfly valve.
The above embodiments are merely illustrative of the present invention, which is not intended to limit the present invention, and for those skilled in the art, a plurality of modifications and improvements can be made without departing from the principles of the present invention, which all fall within the protection scope of the present invention, therefore, the protection scope of the present invention should be determined by the appended claims.
Claims (7)
1. The utility model provides a portable elasticity compensation type butterfly valve of disk seat, includes valve body, valve rod and butterfly plate, be equipped with the runner in the valve body, the valve rod drive butterfly plate rotatory control runner cuts off or circulates in the runner, be equipped with the disk seat between valve body and the butterfly plate, the disk seat is equipped with outward and fixes the pressure cover on the valve body with the disk seat, its characterized in that: a sealing ring mounting groove is formed in the end face, facing the valve seat, of the butterfly plate, a first sealing ring is arranged in the sealing ring mounting groove, a pressing plate for fixing the first sealing ring on the butterfly plate is arranged outside the first sealing ring, a first inclined surface is arranged on the first sealing ring, facing the valve seat, and a second inclined surface which is in abutting sealing fit with the first inclined surface is arranged on the valve seat, facing the first sealing ring; the valve seat is provided with a first step in a protruding mode on the end face, facing the valve body, of the valve seat, the valve body is provided with a first limiting wall for limiting the first step, a first groove is formed in the end face, facing the first limiting wall, of the valve seat, a second sealing ring is arranged in the first groove, and a moving gap is formed between the first limiting wall and the second sealing ring; the pressing sleeve is provided with a second step protruding towards the valve seat, the first step is provided with a butting wall which is abutted against the second step, a second groove is formed in the butting wall, a compression spring is arranged in the second groove, and the compression spring extrudes the first limiting wall of the valve seat.
2. The butterfly valve with movable seat compensation of claim 1, wherein: the valve seat is provided with a second limiting wall towards the second bump, and the second limiting wall is perpendicular to the abutting wall.
3. The butterfly valve with movable seat compensation of claim 1, wherein: first sealing washer is including a polytetrafluoroethylene sealing washer and a metal seal circle that sets up side by side, the metal seal circle is located the sealing washer mounting groove outside, the polytetrafluoroethylene sealing washer is located sealing washer mounting groove is inboard.
4. The butterfly valve with movable seat compensation of claim 1, wherein: the end face of the butterfly plate facing the first sealing ring is provided with an O-shaped sealing ring.
5. The butterfly valve with movable seat compensation of claim 1, wherein: the end face, facing the valve seat, of the valve body is at least provided with two O-shaped sealing rings.
6. The butterfly valve with movable seat compensation of claim 1, wherein: the pressing plate is fixed with the butterfly plate through the inner hexagon screws.
7. The butterfly valve with movable seat compensation of claim 1, wherein: the pressing sleeve is fixed with the valve body through a socket head cap screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920967160.1U CN210566315U (en) | 2019-06-25 | 2019-06-25 | Elastic compensation type butterfly valve with movable valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920967160.1U CN210566315U (en) | 2019-06-25 | 2019-06-25 | Elastic compensation type butterfly valve with movable valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210566315U true CN210566315U (en) | 2020-05-19 |
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ID=70628556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920967160.1U Active CN210566315U (en) | 2019-06-25 | 2019-06-25 | Elastic compensation type butterfly valve with movable valve seat |
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| Country | Link |
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| CN (1) | CN210566315U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692349A (en) * | 2020-06-15 | 2020-09-22 | 四川弗洛威流体控制设备有限公司 | Butterfly spherical valve |
| CN113339530A (en) * | 2021-05-11 | 2021-09-03 | 超达阀门集团股份有限公司 | Three-eccentric high-temperature butterfly valve with bidirectional sealing function |
-
2019
- 2019-06-25 CN CN201920967160.1U patent/CN210566315U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692349A (en) * | 2020-06-15 | 2020-09-22 | 四川弗洛威流体控制设备有限公司 | Butterfly spherical valve |
| CN113339530A (en) * | 2021-05-11 | 2021-09-03 | 超达阀门集团股份有限公司 | Three-eccentric high-temperature butterfly valve with bidirectional sealing function |
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