CN213039871U - Improved diaphragm valve - Google Patents
Improved diaphragm valve Download PDFInfo
- Publication number
- CN213039871U CN213039871U CN202021178578.3U CN202021178578U CN213039871U CN 213039871 U CN213039871 U CN 213039871U CN 202021178578 U CN202021178578 U CN 202021178578U CN 213039871 U CN213039871 U CN 213039871U
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- China
- Prior art keywords
- clamp plate
- diaphragm valve
- butt joint
- joint piece
- sealing layer
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Abstract
The utility model discloses an improved diaphragm valve, including valve body, diaphragm, clamp plate and clamp plate butt joint piece, the both ends of the top platform of clamp plate butt joint piece are upwards protruding to extend and are formed the seal groove, the bottom of clamp plate be provided with seal groove assorted sealing layer. Compared with the prior art, the utility model, utilize the elastic action of sealing layer, form the double seal effect through nip portion and cooperation portion to guaranteed to possess good, stable high leakproofness between clamp plate and the clamp plate butt joint piece, solved the weeping problem that current diaphragm valve exists, the result of use of diaphragm valve is effectively ensured.
Description
Technical Field
The utility model relates to a diaphragm valve, concretely relates to improved generation diaphragm valve.
Background
The diaphragm valve is a valve commonly used in dangerous chemical delivery, and is a stop valve which uses a diaphragm as an opening and closing piece to close a flow passage, cut off fluid and separate an inner cavity of a valve body from an inner cavity of a valve cover.
Patent No. 201921399562.2 discloses a diaphragm valve, which solves the problem of troublesome loading and unloading of diaphragm in the diaphragm valve, but in practical application, the pressure plate and the pressure plate butt joint block are difficult to realize perfect seamless butt joint, and along with long-time use, the friction accumulation of the pressure plate and the pressure plate butt joint block can gradually enlarge the gap between the pressure plate and the pressure plate butt joint block, and the use effect of the diaphragm valve is influenced.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the improved diaphragm valve is provided, and high sealing property which can be sustainable for a long time can be ensured between the pressing plate and the pressing plate butt joint block.
The technical scheme is as follows: in order to achieve the above object, the utility model provides an improved diaphragm valve, including valve body, diaphragm, clamp plate and clamp plate butt joint piece, the both ends of the top platform of clamp plate butt joint piece are upwards protruding to extend and are formed the seal groove, the bottom of clamp plate be provided with seal groove assorted sealing layer.
Further, the sealing layer includes nip portion and cooperation portion, nip portion pushes down on the top platform of clamp plate butt joint piece, cooperation portion cooperation is in the seal groove, between cooperation portion and the seal groove to and form dual seal effect between nip portion and the clamp plate butt joint piece, ensure the high leakproofness between clamp plate and the clamp plate butt joint piece.
Furthermore, a liquid discharge hole is formed in the bottom end of the side portion of the sealing groove, and the liquid discharge hole is used for discharging liquid media stored in the sealing groove.
Further, the sealing layer is a rubber sealing layer.
Further, the pressing part covers the sealing groove.
Has the advantages that: compared with the prior art, the utility model, utilize the elastic action of sealing layer, form the double seal effect through nip portion and cooperation portion to guaranteed to possess good, stable high leakproofness between clamp plate and the clamp plate butt joint piece, solved the weeping problem that current diaphragm valve exists, the result of use of diaphragm valve is effectively ensured.
Drawings
FIG. 1 is a schematic view of a diaphragm valve before retrofitting;
fig. 2 is a schematic structural connection diagram of the modified pressure plate and the pressure plate butt block.
Detailed Description
The present invention will be further clarified by the following description with reference to the attached drawings and specific examples, which should be understood as being merely illustrative of the present invention and not limiting the scope of the present invention, and modifications of various equivalent forms of the present invention by those skilled in the art after reading the present invention, all fall within the scope defined by the appended claims of the present application.
As shown in fig. 1 and 2, the utility model provides an improved diaphragm valve, including valve body 1, diaphragm installing port 11, diaphragm 12, clamp plate 121, cylinder 2, upper end cover 21, intake and exhaust air port 211, lower end cover 22, cylinder 23, piston 231, support frame 24, piston rod 3, spring 31 and clamp plate butt joint piece 8, butt joint mode to clamp plate 121 and clamp plate butt joint piece 8 improves, the clamp plate is to protruding upwards at the both ends of the top platform of joint piece 8 and extend formation seal groove 5, the bottom of clamp plate 121 is provided with and seals groove 5 assorted rubber seal layer, the rubber seal layer includes pressfitting 4 and cooperation 6, pressfitting 4 pushes down on the top platform of clamp plate butt joint piece 8 and cover seal groove 5, cooperation 6 cooperates in seal groove 5, outage 7 has been seted up to the lateral part bottom of seal groove 5.
Be applied to above-mentioned improved generation diaphragm valve in dangerous chemical liquid medium carries in this embodiment, in case need end the transport, clamp plate 121 pushes down and clamp plate butt joint piece 8 docks, because the self elastic action of rubber seal layer, nip portion 4 makes clamp plate 121 and clamp plate butt joint piece 8's top platform possess well, stable high leakproofness, also possess well between cooperation portion 6 and the seal groove 5, stable high leakproofness, under the effect of dual seal, the condition of weeping can not appear in the diaphragm valve, the result of use of diaphragm valve has been guaranteed.
Claims (5)
1. The utility model provides an improved generation diaphragm valve, includes valve body, diaphragm, clamp plate and clamp plate butt joint piece, its characterized in that: the two ends of the top platform of the pressing plate butt joint block protrude upwards to extend to form a sealing groove, and a sealing layer matched with the sealing groove is arranged at the bottom of the pressing plate.
2. An improved diaphragm valve according to claim 1, wherein: the sealing layer comprises a pressing part and a matching part, the pressing part is pressed down on a top platform of the pressing plate butt joint block, and the matching part is matched in the sealing groove.
3. An improved diaphragm valve according to claim 1, wherein: and a liquid discharge hole is formed in the bottom end of the side part of the sealing groove.
4. An improved diaphragm valve according to claim 1, wherein: the sealing layer is a rubber sealing layer.
5. An improved diaphragm valve according to claim 2, wherein: the pressing part covers the sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021178578.3U CN213039871U (en) | 2020-06-23 | 2020-06-23 | Improved diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021178578.3U CN213039871U (en) | 2020-06-23 | 2020-06-23 | Improved diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213039871U true CN213039871U (en) | 2021-04-23 |
Family
ID=75523549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021178578.3U Active CN213039871U (en) | 2020-06-23 | 2020-06-23 | Improved diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213039871U (en) |
-
2020
- 2020-06-23 CN CN202021178578.3U patent/CN213039871U/en active Active
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant |