CN220227871U - Pneumatic diaphragm valve - Google Patents
Pneumatic diaphragm valve Download PDFInfo
- Publication number
- CN220227871U CN220227871U CN202321645113.8U CN202321645113U CN220227871U CN 220227871 U CN220227871 U CN 220227871U CN 202321645113 U CN202321645113 U CN 202321645113U CN 220227871 U CN220227871 U CN 220227871U
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- Prior art keywords
- valve
- fixedly connected
- pneumatic
- valve plate
- valve body
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- 238000007789 sealing Methods 0.000 claims abstract description 23
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 230000006835 compression Effects 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 abstract description 10
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 230000003872 anastomosis Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Fluid-Driven Valves (AREA)
Abstract
The present utility model provides a pneumatic diaphragm valve comprising: a valve body; the pneumatic cavity is formed in the top of the valve body, a piston plate which slides in a sealing manner is arranged in the pneumatic cavity, the bottom of the piston plate is fixedly connected with a valve plate, the bottom of the valve plate penetrates through the pneumatic cavity and extends to the bottom of the pneumatic cavity, sealing strips are fixedly connected to two sides of the bottom of the valve plate, and at least three reinforcing columns are fixedly connected to the bottom of the valve plate; the stop block is fixed at the bottom of the inner wall of the valve body, and a groove for inserting the valve plate is formed in the top of the stop block. According to the pneumatic diaphragm valve provided by the utility model, the stability of the valve plate for closing the valve body can be improved through the valve plate inserted into the groove, the sealing property of closing is improved through the arrangement of the sealing strip, the compression resistance of the pneumatic diaphragm valve can be further improved through the insertion of the reinforcing column into the positioning hole at the corresponding position, and the problem of subsequent sealing descending caused by loosening of the valve plate due to impact of high-strength fluid is avoided.
Description
Technical Field
The utility model relates to the field of diaphragm valves, in particular to a pneumatic diaphragm valve.
Background
The diaphragm valve has a structure which is quite different from that of a common valve, and the diaphragm valve controls the movement of fluid by virtue of a soft rubber film or a plastic film; the materials of the diaphragm valve commonly used are cast iron diaphragm valves, cast steel diaphragm valves, stainless steel diaphragm valves and plastic diaphragm valves.
In the related art, the pneumatic diaphragm valve has certain defects in the using process, such as insufficient insulation strength of the existing starting diaphragm valve, so that when fluid is controlled, when the impact of the fluid is large, the looseness of the diaphragm valve plate is easily caused, the subsequent tightness is affected, and the service life of the diaphragm valve is reduced.
Accordingly, there is a need to provide a pneumatic diaphragm valve that solves the above-mentioned technical problems.
Disclosure of Invention
The utility model provides a pneumatic diaphragm valve, which solves the problem that the diaphragm valve plate is easy to cause Sun Song of the diaphragm valve plate to cause seal reduction due to the fact that the diaphragm valve plate cannot be positioned and reinforced so that long-term high-strength fluid impact is caused.
In order to solve the above technical problems, the pneumatic diaphragm valve provided by the present utility model includes:
a valve body;
the pneumatic cavity is formed in the top of the valve body, a piston plate capable of sliding in a sealing mode is arranged in the pneumatic cavity, a valve plate is fixedly connected to the bottom of the piston plate, the bottom of the valve plate penetrates through the pneumatic cavity and extends to the bottom of the pneumatic cavity, sealing strips are fixedly connected to two sides of the bottom of the valve plate, and at least three reinforcing columns are fixedly connected to the bottom of the valve plate;
the stop block is fixed at the bottom of the inner wall of the valve body, a groove for the insertion of the valve plate is formed in the top of the stop block, sealing grooves in the shape of strips are formed in two sides of the top of the groove, and at least three positioning holes are formed in the bottom of the inner wall of the groove.
Preferably, an end cover is fixedly connected to the top of the valve body, and an extrusion spring is fixedly connected between the bottom of the end cover and the top of the piston plate.
Preferably, one side of valve body top fixedly connected with trachea, tracheal one end communicates with the inside of pneumatic chamber.
Preferably, at least three through holes are formed in one side of the stop block, and the three through holes are respectively communicated with the interiors of the three positioning holes.
Preferably, the two sides of the valve body are fixedly communicated with through pipes, and one ends of the two through pipes are fixedly connected with mounting flanges.
Preferably, the end cover is in threaded connection with the top of the valve body, and the top of the end cover is fixedly connected with an outer hexagonal driving block, and an inner hexagonal driving groove is formed in the top of the outer hexagonal driving block.
Compared with the related art, the pneumatic diaphragm valve provided by the utility model has the following beneficial effects:
the utility model provides a pneumatic diaphragm valve, which can improve the stability of a valve plate for closing a valve body by inserting the valve plate into a groove, and can improve the tightness of closing by arranging a sealing strip, and can further improve the compression resistance by inserting a reinforcing column into a positioning hole at a corresponding position, so that the problem of subsequent sealing reduction caused by loosening of the valve plate due to impact of high-strength fluid is avoided.
Drawings
FIG. 1 is a schematic view of a first embodiment of a pneumatic diaphragm valve provided by the present utility model;
FIG. 2 is a cross-sectional view of the pneumatic diaphragm valve of FIG. 1;
FIG. 3 is a schematic view of the stopper shown in FIG. 2;
FIG. 4 is a schematic view of the structure of the valve plate shown in FIG. 2;
fig. 5 is a schematic structural view of a second embodiment of the pneumatic diaphragm valve provided by the present utility model.
Reference numerals in the drawings: 1. a valve body; 2. a pneumatic chamber; 3. a piston plate; 4. a valve plate; 5. a sealing strip; 6. a reinforcing column; 7. a stop block; 8. a groove; 9. sealing grooves; 10. positioning holes; 11. an end cap; 12. extruding a spring; 13. an air pipe; 14. a through pipe; 15. an outer hexagonal driving block; 16. and the inner hexagon drives the groove.
Detailed Description
The utility model will be further described with reference to the drawings and embodiments.
First embodiment
Referring to fig. 1, fig. 2, fig. 3, and fig. 4 in combination, fig. 1 is a schematic structural diagram of a first embodiment of a pneumatic diaphragm valve according to the present utility model; FIG. 2 is a cross-sectional view of the pneumatic diaphragm valve of FIG. 1; FIG. 3 is a schematic view of the stopper shown in FIG. 2; fig. 4 is a schematic structural view of the valve plate shown in fig. 2. The pneumatic diaphragm valve includes:
a valve body 1;
the pneumatic cavity 2 is formed in the top of the valve body 1, a piston plate 3 which slides in a sealing manner is arranged in the pneumatic cavity 2, a valve plate 4 is fixedly connected to the bottom of the piston plate 3, the bottom of the valve plate 4 penetrates through the pneumatic cavity 2 and extends to the bottom of the pneumatic cavity 2, sealing strips 5 are fixedly connected to two sides of the bottom of the valve plate 4, and at least three reinforcing columns 6 are fixedly connected to the bottom of the valve plate 4;
the stop block 7 is fixed at the bottom of the inner wall of the valve body 1, a groove 8 for inserting the valve plate 4 is formed in the top of the stop block 7, strip-shaped sealing grooves 9 are formed in two sides of the top of the groove 8, and at least three positioning holes 10 are formed in the bottom of the inner wall of the groove 8;
the stability of the valve plate 4 for closing the valve body 1 can be improved by inserting the valve plate 4 into the groove 8, and the sealing property of the valve is improved by arranging the sealing strip 5;
the reinforcing column 6 is inserted into the positioning hole 10 at the corresponding position, so that the compression resistance of the valve plate can be further improved, the problem of subsequent sealing reduction caused by loosening of the valve plate 4 due to impact of high-strength fluid is avoided.
An end cover 11 is fixedly connected to the top of the valve body 1, and an extrusion spring 12 is fixedly connected between the bottom of the end cover 11 and the top of the piston plate 3;
referring to fig. 2, the compression spring 12 is in a contracted state, and the piston plate 3 can be compressed by the elastic force of the compression spring 12, so that the piston plate 3 moves downwards, and the valve plate 4 can be inserted into the groove 8 to form a sealing process.
One side of the top of the valve body 1 is fixedly connected with an air pipe 13, and one end of the air pipe 13 is communicated with the inside of the pneumatic cavity 2;
through the setting of trachea 13, be convenient for with the connection of external cylinder air inlet for the inside injection gas of pneumatic chamber 2.
At least three through holes are formed in one side of the stop block 7 and are respectively communicated with the interiors of the three positioning holes 10;
through the opening of the through hole, the reinforcing column 6 is convenient to insert into the positioning hole 10, fluid in the positioning hole 10 can be extruded through the through hole, and the reinforcing column 6 is convenient to better anastomose with the positioning hole 10.
Two sides of the valve body 1 are fixedly communicated with through pipes 14, and one end of each through pipe 14 is fixedly connected with a mounting flange;
through the arrangement of the through pipe 14, the fluid is convenient to enter the valve body 1, and through the arrangement of the mounting flange, the diaphragm valve and the pipeline are convenient to mount.
The working principle of the pneumatic diaphragm valve provided by the utility model is as follows:
the air is introduced into the air pipe 13 through the air inlet of the air cylinder, the air enters the air cavity 2, the piston plate 3 is lifted upwards through the pneumatic principle, meanwhile, the compression spring 12 is compressed upwards, the upward movement of the piston plate 3 can drive the valve plate 4 to move upwards, and then the valve plate 4 opens the inside of the valve body 1 to flow fluid;
the cylinder air inlet is used for stopping air inflow to the air pipe 13, the piston plate 3 can be extruded through the elastic force of the extrusion spring 12, so that the piston plate 3 moves upwards, the valve plate 4 can be driven to move downwards, the valve plate 4 can be inserted into the groove 8 for isolation through the downward movement of the valve plate, sealing isolation is formed by inserting two sealing strips 5 into the sealing grooves 9 at corresponding positions, the reinforcing column 6 is inserted into the positioning holes 10 at corresponding positions, and the connection strength of the valve plate 4 and the stop block 7 is improved.
Second embodiment
Referring to fig. 5 in combination, another pneumatic diaphragm valve is proposed in accordance with a second embodiment of the present application based on the pneumatic diaphragm valve provided in the first embodiment of the present application. The second embodiment is merely a preferred manner of the first embodiment, and implementation of the second embodiment does not affect the implementation of the first embodiment alone.
Specifically, the pneumatic diaphragm valve provided in the second embodiment of the present application is different in that the end cover 11 is screwed on the top of the valve body 1, and the top of the end cover 11 is fixedly connected with an outer hexagonal driving block 15, and an inner hexagonal driving groove 16 is formed in the top of the outer hexagonal driving block 15;
through outer hexagonal drive piece 15 setting, the rotation control of inner hexagonal spanner to end cover 11 of being convenient for, through the setting of inner hexagonal drive groove 16, the outer hexagonal spanner of being convenient for is to the rotation control of end cover 11, and the dismantlement of end cover 11 of being convenient for, and then makes things convenient for the staff to extrude spring 12 and changes.
The foregoing is only illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, and all equivalent structures or equivalent flow modifications which may be made by the teachings of the present utility model and the accompanying drawings or which may be directly or indirectly employed in other related art are within the scope of the utility model.
Claims (6)
1. A pneumatic diaphragm valve, comprising:
a valve body (1);
the pneumatic valve comprises a valve body (1), a pneumatic cavity (2), a piston plate (3) which is hermetically and slidably arranged in the pneumatic cavity (2), a valve plate (4) fixedly connected with the bottom of the piston plate (3), sealing strips (5) fixedly connected with the two sides of the bottom of the valve plate (4) and at least three reinforcing columns (6) fixedly connected with the bottom of the valve plate (4), wherein the bottom of the valve plate (4) penetrates through the pneumatic cavity (2) and extends to the bottom of the pneumatic cavity (2);
the stopper (7), stopper (7) are fixed in the bottom of valve body (1) inner wall, recess (8) that are used for valve plate (4) male are seted up at the top of stopper (7), and seal groove (9) of strip shape have all been seted up at the both sides at recess (8) top, at least three locating hole (10) have been seted up to the bottom of recess (8) inner wall.
2. Pneumatic diaphragm valve according to claim 1, characterized in that the top of the valve body (1) is fixedly connected with an end cap (11), between the bottom of the end cap (11) and the top of the piston plate (3) is fixedly connected with a compression spring (12).
3. Pneumatic diaphragm valve according to claim 1, characterized in that one side of the top of the valve body (1) is fixedly connected with a gas pipe (13), one end of the gas pipe (13) is communicated with the inside of the pneumatic cavity (2).
4. Pneumatic diaphragm valve according to claim 1, characterized in that one side of the stop (7) is provided with at least three through holes, and the three through holes are respectively communicated with the interiors of the three positioning holes (10).
5. Pneumatic diaphragm valve according to claim 1, characterized in that the two sides of the valve body (1) are fixedly connected with through pipes (14), and one end of each through pipe (14) is fixedly connected with a mounting flange.
6. Pneumatic diaphragm valve according to claim 2, characterized in that the end cap (11) is screwed on top of the valve body (1), and the top of the end cap (11) is fixedly connected with an outer hexagonal driving block (15), and an inner hexagonal driving groove (16) is provided on top of the outer hexagonal driving block (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321645113.8U CN220227871U (en) | 2023-06-27 | 2023-06-27 | Pneumatic diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321645113.8U CN220227871U (en) | 2023-06-27 | 2023-06-27 | Pneumatic diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220227871U true CN220227871U (en) | 2023-12-22 |
Family
ID=89188452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321645113.8U Active CN220227871U (en) | 2023-06-27 | 2023-06-27 | Pneumatic diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220227871U (en) |
-
2023
- 2023-06-27 CN CN202321645113.8U patent/CN220227871U/en active Active
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| GR01 | Patent grant |