CN209925642U - Lip-shaped sealing high-performance butterfly valve - Google Patents
Lip-shaped sealing high-performance butterfly valve Download PDFInfo
- Publication number
- CN209925642U CN209925642U CN201920694963.4U CN201920694963U CN209925642U CN 209925642 U CN209925642 U CN 209925642U CN 201920694963 U CN201920694963 U CN 201920694963U CN 209925642 U CN209925642 U CN 209925642U
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- elastic metal
- ring
- lip
- valve
- metal ring
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Abstract
The utility model relates to a lip-shaped sealing high-performance butterfly valve, which comprises a valve body, a valve rod, a butterfly plate and a valve seat sealing ring, wherein the valve seat sealing ring is formed by arranging an elastic metal ring in the inner cavity of a lip-shaped rubber sealing ring; the butterfly plate sealing device is characterized in that a pressing device is arranged at the opening of the elastic metal ring, the elastic metal ring is pressed after the butterfly plate is closed, the gap at the opening of the elastic metal ring is reduced, the inner diameter of the elastic metal ring is reduced, the lip-shaped rubber sealing ring is pressed to be sealed with the butterfly plate, and the sealing performance is good.
Description
Technical Field
The utility model belongs to the valve field especially relates to a butterfly valve.
Background
The lip-shaped sealing butterfly valve adopts the elastic metal ring arranged in the rubber sealing ring, and when the rubber sealing ring is pressed and deformed by the butterfly plate for a long time in the use process, the elastic metal ring is used for pressing the rubber sealing ring to be in sealing fit with the sealing surface of the butterfly plate all the time. The defect is that the elastic metal ring is easy to deform and lose elastic force after long-term use, so that the sealing force between the rubber sealing ring and the sealing surface of the butterfly plate is reduced, and the sealing performance is reduced.
Disclosure of Invention
The utility model discloses shortcoming to prior art exists provides a lip seal high performance butterfly valve that sealing performance is good.
The technical scheme of the utility model comprises a valve body, a valve rod, a butterfly plate and a valve seat sealing ring, wherein the valve seat sealing ring is formed by arranging an elastic metal ring in the inner cavity of a lip-shaped rubber sealing ring, and the lip-shaped rubber sealing ring and the elastic metal ring are fixedly arranged in the valve body by a compression ring; the hydraulic valve is characterized in that a pressing device is arranged at the opening of the elastic metal ring, the pressing device is composed of a piston cylinder, a piston and a piston rod, the piston cylinder is fixedly arranged on the valve body, the piston is in movable sealing fit with the inner cavity of the piston cylinder, one end of the piston rod is fixedly connected with the center of the end face of the piston, the other end of the piston rod is fixedly connected with the outer ring surface on one side of the opening of the elastic metal ring, a convex block is arranged on the outer ring surface on the other side of the opening of the elastic metal ring, the convex.
The utility model has the advantages that be equipped with closing device at the opening part of elastic metal ring, close the back at the butterfly plate, compress tightly elastic metal ring, make elastic metal ring opening part clearance reduce, the elastic metal ring internal diameter reduces, compresses tightly lip rubber seal and seals with the butterfly plate, and sealing performance is good.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of a local structure at the opening of the elastic metal ring of the present invention.
Detailed Description
The lip-shaped sealing high-performance butterfly valve shown in the figure 1 comprises a valve body 1, a valve rod 2, a butterfly plate 5 and a valve seat sealing ring, wherein the valve seat sealing ring is formed by arranging an elastic metal ring 6 in an inner cavity of a lip-shaped rubber sealing ring 4, and the lip-shaped rubber sealing ring 4 and the elastic metal ring 6 are fixedly arranged in the valve body 1 through a pressing ring 3; the hydraulic valve is characterized in that a pressing device is arranged at an opening of an elastic metal ring 6, the pressing device is composed of a piston cylinder, a piston and a piston rod 8, the piston cylinder is fixedly installed on a valve body 1, the piston is in movable sealing fit with an inner cavity of the piston cylinder, one end of the piston rod 8 is fixedly connected with the center of the end face of the piston, the other end of the piston rod is fixedly connected with the outer ring surface on one side of the opening of the elastic metal ring 6, a convex block 7 is arranged on the outer ring surface on the other side of the opening of the elastic metal ring 6, as shown in figure 2, the convex block 7 is embedded in a groove of the valve body 1, one side of. After the butterfly plate 5 is closed, the piston rod 8 is pushed by hydraulic pressure to compress a gap at the opening of the elastic metal ring 6, the diameter of the elastic metal ring 6 is reduced, and the lip-shaped rubber sealing ring 4 is tightly pressed to be in sealing fit with the butterfly plate 5. The valve body 1, the valve rod 2 and the butterfly plate 5 adopt a three-eccentric structure.
Claims (1)
1. A lip-shaped sealing high-performance butterfly valve comprises a valve body (1), a valve rod (2), a butterfly plate (5) and a valve seat sealing ring, wherein the valve seat sealing ring is formed by arranging an elastic metal ring (6) in an inner cavity of a lip-shaped rubber sealing ring (4), and the lip-shaped rubber sealing ring (4) and the elastic metal ring (6) are fixedly arranged in the valve body (1) through a pressing ring (3); the hydraulic valve is characterized in that a pressing device is arranged at an opening of an elastic metal ring (6), the pressing device comprises a piston cylinder, a piston and a piston rod (8), the piston cylinder is fixedly installed on a valve body (1), the piston is in movable sealing fit with an inner cavity of the piston cylinder, one end of the piston rod (8) is fixedly connected with the center of the end face of the piston, the other end of the piston rod is fixedly connected with the outer ring surface on one side of the opening of the elastic metal ring (6), a convex block (7) is arranged on the outer ring surface on the other side of the opening of the elastic metal ring (6), the convex block (7) is embedded in a groove of the valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920694963.4U CN209925642U (en) | 2019-05-16 | 2019-05-16 | Lip-shaped sealing high-performance butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920694963.4U CN209925642U (en) | 2019-05-16 | 2019-05-16 | Lip-shaped sealing high-performance butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209925642U true CN209925642U (en) | 2020-01-10 |
Family
ID=69090675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920694963.4U Active CN209925642U (en) | 2019-05-16 | 2019-05-16 | Lip-shaped sealing high-performance butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209925642U (en) |
-
2019
- 2019-05-16 CN CN201920694963.4U patent/CN209925642U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |