CN210318628U - Diaphragm valve - Google Patents
Diaphragm valve Download PDFInfo
- Publication number
- CN210318628U CN210318628U CN201921399562.2U CN201921399562U CN210318628U CN 210318628 U CN210318628 U CN 210318628U CN 201921399562 U CN201921399562 U CN 201921399562U CN 210318628 U CN210318628 U CN 210318628U
- Authority
- CN
- China
- Prior art keywords
- diaphragm
- cylinder
- end cover
- valve body
- piston rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007493 shaping process Methods 0.000 claims abstract description 4
- 239000012528 membrane Substances 0.000 claims description 13
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Fluid-Driven Valves (AREA)
Abstract
The utility model discloses a diaphragm valve, including valve body, piston rod and cylinder, the cylinder includes lower extreme cover and upper end cover, the diaphragm installing port has been seted up at the valve body top, be provided with the diaphragm in the diaphragm installing port, the diaphragm top stacks the setting with the lower extreme cover, through bolt fixed connection between lower extreme cover, diaphragm and the valve body, the diaphragm middle part is provided with the clamp plate, the shaping of clamp plate middle part has the recess that supplies the piston rod to penetrate, the piston rod penetrates recess and clamp plate fixed connection, be provided with the cylinder between upper end cover and the lower extreme cover, the cylinder is provided with the piston with the junction of upper end cover, the other end and the piston fixed connection of one end are connected for valve rod and clamp plate to the piston rod, be provided with the spring between lower extreme cover and the piston, the piston rod outer. An object of the utility model is to provide a diaphragm valve of cylinder simple structure and simple to operate.
Description
Technical Field
The utility model relates to the technical field of valves, specifically a diaphragm valve.
Background
The diaphragm valve 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. The diaphragm is made of elastic, corrosion-resistant and impermeable materials such as rubber and plastics. The valve body is made of multipurpose plastic, glass fiber reinforced plastic, ceramic or metal lining rubber material. Simple structure, better sealing and corrosion resistance and small fluid resistance. The medium is used for low pressure, low temperature, medium with strong corrosiveness and suspended substance. The structure is divided into a ridge type, a stop type, a gate type and the like. The driving modes are manual, pneumatic and electric. However, the existing diaphragm valve cylinder has a complex internal structure, and the installation between the cylinder and the valve body is inconvenient.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a diaphragm valve of cylinder simple structure and simple to operate to solve foretell problem.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a diaphragm valve, includes valve body, piston rod and cylinder, the cylinder includes lower extreme cover and upper end cover, the diaphragm installing port has been seted up at the valve body top, be provided with the diaphragm in the diaphragm installing port, the diaphragm top stacks the setting with the lower extreme cover, pass through bolt fixed connection between lower extreme cover, diaphragm and the valve body, the diaphragm middle part is provided with the clamp plate, the shaping of clamp plate middle part has the recess that supplies the piston rod to penetrate, the piston rod penetrates recess and clamp plate fixed connection, be provided with the cylinder between upper end cover and the lower extreme cover, the cylinder is provided with the piston with the junction of upper end cover, the piston rod is connected the other end and piston fixed connection of one end for valve rod and clamp plate, be provided with the spring between lower extreme cover and the piston.
The technical scheme has the advantages that: the top of the valve body is provided with a diaphragm mounting opening, a diaphragm is fixedly arranged in the diaphragm mounting opening, the lower end cover is stacked on the diaphragm, the lower end cover, the diaphragm and the valve body are fixed by bolts, the middle part of the diaphragm is provided with a pressing plate for extruding the diaphragm, the pressing plate is provided with a groove, and a piston rod is transmitted into the groove and fixedly connected with the pressing plate, so that the valve body and the air cylinder are more convenient to mount; the cylinder barrel is arranged between the upper end cover and the lower end cover, the piston is arranged at the joint of the cylinder barrel and the upper end cover, the piston is fixedly connected with the piston rod, and the spring sleeve is arranged between the lower end cover and the piston and is arranged on the outer ring of the piston rod, so that the inner structure of the cylinder is simple, and the cylinder is convenient to install with the valve body.
Preferably, the upper end cover is provided with an air inlet and outlet port, and a plurality of support frames are arranged between the upper end cover and the lower end cover along the circumferential direction.
The technical scheme has the advantages that: the air inlet and exhaust port is formed in the upper end cover, when air enters the air inlet and exhaust port, air enters the air cylinder to force the piston to extrude downwards, the piston extrudes downwards to drive the piston rod to extrude the middle pressing plate of the diaphragm downwards until the diaphragm cuts off the channel, when the air inlet and exhaust port exhausts air, the air is exhausted outwards from the interior of the air cylinder to force the piston to approach the upper end cover, so that the piston rod is driven to move upwards until the diaphragm opens the channel; through set up a plurality of support frames between upper end cover and lower end cover, make the structure of cylinder more firm, guarantee this diaphragm valve stable in structure.
Preferably, the valve body, the diaphragm and the lower end cover are concentrically arranged.
The technical scheme has the advantages that: the concentricity of the valve body, the diaphragm and the cylinder is ensured by concentrically arranging the valve body, the diaphragm and the lower end cover.
Preferably, the cylinder and the valve body are integrally formed.
The technical scheme has the advantages that: through inciting somebody to action cylinder and valve body integrated into one piece make the structure between cylinder and the valve body more stable, guaranteed the concentricity of cylinder and valve body simultaneously, improve the precision of this diaphragm valve.
Preferably, the membrane is a double-layer membrane.
The technical scheme has the advantages that: the membrane is set to be a double-layer membrane, so that the membrane is more acid-base-resistant.
Drawings
Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.
Reference numerals: 1. a valve body; 11. a diaphragm mounting port; 12. a membrane; 121. pressing a plate; 2. a cylinder; 21. an upper end cover; 211. an air inlet and outlet port; 22. a lower end cover; 23. a cylinder barrel; 231. a piston; 24. a support frame; 3. a piston rod; 31. a spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, a diaphragm valve according to an embodiment of the present invention: including valve body 1, piston rod 3 and cylinder 2, cylinder 2 includes lower end cover 22 and upper end cover 21, its characterized in that: the diaphragm 12 installing port 11 has been seted up at 1 top of valve body, be provided with diaphragm 12 in the diaphragm 12 installing port 11, diaphragm 12 top and lower end cover 22 stack set up, pass through bolt fixed connection between lower end cover 22, diaphragm 12 and the valve body 1, diaphragm 12 middle part is provided with clamp plate 121, clamp plate 121 middle part shaping has the recess that supplies piston rod 3 to penetrate, piston rod 3 penetrates recess and clamp plate 121 fixed connection, be provided with cylinder 23 between upper end cover 21 and the lower end cover 22, the junction of cylinder 23 and upper end cover 21 is provided with piston 231, the other end and piston 231 fixed connection of piston rod 3 one end are connected with clamp plate 121 for the valve rod, be provided with spring 31 between lower end cover 22 and the piston 231, the outer lane of piston rod 3 is located to spring 31 cover. The top of the valve body 1 is provided with the mounting hole 11 of the diaphragm 12, the diaphragm 12 is fixedly arranged in the mounting hole 11 of the diaphragm 12, the lower end cover 22 is arranged on the diaphragm 12 in a stacked mode, the lower end cover 22, the diaphragm 12 and the valve body 1 are fixed through bolts, the middle of the diaphragm 12 is provided with the pressing plate 121 used for extruding the diaphragm 12, the pressing plate 121 is provided with a groove, and the piston rod 3 is transmitted into the groove and fixedly connected with the pressing plate 121, so that the valve body 1 and the cylinder 2 are more convenient to mount; the cylinder barrel 23 is arranged between the upper end cover 21 and the lower end cover 22, the piston 231 is arranged at the joint of the cylinder barrel 23 and the upper end cover 21, the piston 231 is fixedly connected with the piston rod 3, and the spring 31 is arranged between the lower end cover 22 and the piston 231 and sleeved on the outer ring of the piston rod 3, so that the internal structure of the cylinder 2 is simple, and the cylinder 2 is convenient to mount with the valve body 1.
The upper end cover 21 is provided with an air inlet and outlet port 211, and a plurality of support frames 24 are arranged between the upper end cover 21 and the lower end cover 22 along the circumferential direction. Through arranging the air inlet and outlet port 211 on the upper end cover 21, when air enters the air inlet and outlet port 211, air enters the interior of the air cylinder 2 to force the piston 231 to extrude downwards, the piston 231 extrudes downwards to drive the piston rod 3 to extrude the middle pressing plate 121 of the diaphragm 12 downwards until the diaphragm 12 cuts off a channel, and when air is exhausted from the interior of the air cylinder 2, the air is exhausted outwards to force the piston 231 to approach the upper end cover 21, so that the piston rod 3 is driven to move upwards until the diaphragm 12 opens the channel; through set up a plurality of support frames 24 between upper end cover 21 and lower end cover 22, make the structure of cylinder 2 more firm, guarantee this diaphragm valve stable in structure.
The valve body 1, the diaphragm 12 and the lower end cap 22 are concentrically arranged. By arranging the valve body 1, the diaphragm 12 and the lower end cap 22 concentrically, concentricity of the valve body 1, the diaphragm 12 and the cylinder 2 is ensured.
The cylinder 2 and the valve body 1 are integrally formed. Through with cylinder 2 and valve body 1 integrated into one piece make the structure between cylinder 2 and the valve body 1 more stable, guaranteed cylinder 2 and valve body 1's concentricity simultaneously, improve the precision of this diaphragm valve.
The membrane 12 is a double layer membrane 12. By arranging the membrane 12 as a double-layer membrane 12, the membrane 12 is more acid and alkali resistant.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The diaphragm valve comprises a valve body, a piston rod and a cylinder, wherein the cylinder comprises a lower end cover and an upper end cover, and is characterized in that: the diaphragm mounting hole has been seted up at the valve body top, be provided with the diaphragm in the diaphragm mounting hole, the diaphragm top stacks the setting with the lower extreme cover, pass through bolt fixed connection between lower extreme cover, diaphragm and the valve body, the diaphragm middle part is provided with the clamp plate, the shaping of clamp plate middle part has the recess that supplies the piston rod to penetrate, the piston rod penetrates recess and clamp plate fixed connection, be provided with the cylinder between upper end cover and the lower extreme cover, the junction of cylinder and upper end cover is provided with the piston, the piston rod is connected the other end and piston fixed connection of one end for valve rod and clamp plate, be provided with the spring between lower extreme cover and the piston, the piston rod outer lane is located to the.
2. The diaphragm valve of claim 1, wherein: the upper end cover is provided with the air inlet and outlet opening, and a plurality of support frames are arranged between the upper end cover and the lower end cover along the circumferential direction.
3. The diaphragm valve of claim 1, wherein: the valve body, the diaphragm and the lower end cover are arranged concentrically.
4. The diaphragm valve of claim 1, wherein: the cylinder and the valve body are integrally formed.
5. The diaphragm valve of claim 1, wherein: the membrane is a double-layer membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921399562.2U CN210318628U (en) | 2019-08-27 | 2019-08-27 | Diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921399562.2U CN210318628U (en) | 2019-08-27 | 2019-08-27 | Diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210318628U true CN210318628U (en) | 2020-04-14 |
Family
ID=70131515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921399562.2U Expired - Fee Related CN210318628U (en) | 2019-08-27 | 2019-08-27 | Diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210318628U (en) |
-
2019
- 2019-08-27 CN CN201921399562.2U patent/CN210318628U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200414 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |