CN207864683U - A kind of pneumatic diaphragm valve - Google Patents
A kind of pneumatic diaphragm valve Download PDFInfo
- Publication number
- CN207864683U CN207864683U CN201820075707.2U CN201820075707U CN207864683U CN 207864683 U CN207864683 U CN 207864683U CN 201820075707 U CN201820075707 U CN 201820075707U CN 207864683 U CN207864683 U CN 207864683U
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- China
- Prior art keywords
- actuator
- piston
- valve
- diaphragm
- air cavity
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- Expired - Fee Related
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Abstract
A kind of pneumatic diaphragm valve, including cylinder and valve body；Cylinder includes the upper and lower actuator upper shell arranged and be threadedly coupled and actuator lower housing, the air cavity of its Inner Constitution cylinder, the piston being slidably connected and the spring being placed on piston are equipped in air cavity, air cavity is separated into upper air cavity and lower air chamber by piston, actuator upper shell is equipped with gas source inlet, air supply channel corresponding and passing to lower air chamber with gas source inlet is equipped in piston, actuator upper shell surface is additionally provided with the gas vent being connected to upper air cavity；The space of intake channel and the exit passageway connection of valve body connect with the lower part of actuator lower housing and constitutes valve chamber, and valve seat, diaphragm, jacking block and diaphragm follower are equipped in the valve chamber.The utility model effectively promotes the service life of diaphragm；Exquisite structure makes the installation of pneumatic diaphragm valve and using more Portable safety；Have the characteristics that structure and simple shape, easy to process, at low cost, light and sealing effect is good when using.
Description
Technical field
The utility model is related to machinery field more particularly to valve, especially a kind of pneumatic diaphragm valve.
Background technology
Pneumatic diaphragm valve is a kind of automatic-control diaphragm valve, mainly includes valve body and valve rod, and valve rod is installed on valve body
Inside, the bottom end of valve rod is equipped with spool, the diaphragm of control valve unlatching/closing, the top of valve rod is connected on spool
Pneumatic head is installed, the operation principle of this pneumatic diaphragm valve is：Pneumatic head movement is controlled by the opening and closing of gas circuit, to band
Ovable valve stem move up and down, valve rod it is upper and lower transport to movable valve plug and connect with spool diaphragm up and down motion and play unlatching/
The purpose for closing valve is widely used in food, pharmaceutical industry since this pneumatic diaphragm valve is easy to operate, has non-
Often good application prospect.In utility model CN206145177U, a kind of pneumatic diaphragm valve that single-acting is normally closed is disclosed.This gas
There are following technological deficiencies for dynamic diaphragm valve：Under normal circumstances, cylinder body is divided into bi-body structure up and down, valve deck, cylinder body and piston element
By cast iron materials casting and forming, the structure and shape of piston are all more complex, and processing is inconvenient, and cost is higher, and is using
When it is heavier, valve rod is passed through and piston centre and is mutually fixed with piston, also inconvenient in assembly, close between piston and valve rod
Seal structure is also more complex, heavy when use, and sealing effect is poor.
Utility model content
The utility model is in view of the above-mentioned problems, provide a kind of novel pneumatic diaphragm valve.
The purpose of this utility model can be realized by following technical proposals：A kind of pneumatic diaphragm valve, including cylinder and
Valve body；The cylinder includes actuator upper shell and actuator lower housing, and actuator upper shell is with actuator lower housing in up and down
The inner space of arrangement and the two threaded connection, actuator upper shell and actuator lower housing constitutes the air cavity of cylinder, the air cavity
Interior to be equipped with piston and spring, the top and bottom of the piston are slidably connected to actuator upper shell and actuator lower housing respectively
On, the lower end of piston passes through actuator lower housing, and the side of piston is slidably connected on the inner wall of cylinder and is separated into air cavity
Upper air cavity and lower air chamber, the spring are located in upper air cavity, and spring is placed on piston and the both ends of spring are butted on actuator respectively
On upper shell and piston, the actuator upper shell is equipped with gas source inlet, and gas corresponding with gas source inlet is equipped in piston
Source channels, the air supply channel pass to lower air chamber out of piston, and actuator upper shell surface is additionally provided with the exhaust being connected to upper air cavity
Hole；Both sides in the valve body are respectively equipped with intake channel and exit passageway, and intake channel and exit passageway are communicated in valve jointly
An internal space, the valve body are connect with the lower part of actuator lower housing so that under the space and actuator in the valve body
The lower space of shell constitutes valve chamber, and valve seat, diaphragm, jacking block and diaphragm follower are equipped in the valve chamber, and valve seat is embedded on valve body,
Diaphragm is set above valve seat, jacking block and diaphragm follower are set above diaphragm, the lower end of jacking block is corresponding with center, jacking block
Upper end is corresponding with the lower end of piston, and diaphragm follower is placed on jacking block side, and the side of diaphragm follower and the inner wall sliding of valve chamber connect
It connects.
Further, between the upper end of the piston and actuator upper shell and lower end of piston and actuator lower casing
The first O-ring is respectively equipped between body；The second O-ring is equipped between the side of piston and the inner wall of cylinder.
Compared with prior art, the utility model has the advantage of：Actuator upper shell and actuator lower housing use spiral shell
The connection type of line connection, and corresponded on actuator upper shell surface and be equipped with exhaust outlet at upper air cavity, make the installation of each component
With use more Portable safety；Diaphragm is matched by jacking block above piston drive membrane piece and diaphragm follower with valve seat, and
And the gap between diaphragm and valve seat is minimum, the stroke distances of diaphragm, improve the service life of diaphragm when reducing valve opening and closing；
Have the characteristics that structure and simple shape, easy to process, at low cost, light and sealing effect is good when using.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Component mark is as follows in figure：
1 valve body
101 intake channels
102 outlets
2 actuator upper shells
201 gas source inlets
202 gas vents
3 actuator lower housings
4 pistons
401 air supply channels
5 springs
6 first O-rings
7 second O-rings
8 valve seats
9 diaphragms
10 jacking blocks
11 diaphragm followers.
Specific implementation mode
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing, those skilled in the art is made to become apparent from
How ground understanding puts into practice the utility model.Although describing the utility model in conjunction with its preferred embodiment, these
Embodiment only illustrates, rather than limits the scope of the utility model.
Referring to Fig. 1, pneumatic diaphragm valve, including cylinder and valve body 1.
The cylinder includes actuator upper shell 2 and actuator lower housing 3, actuator upper shell 2 and actuator lower housing 3
It is threadedly coupled in upper and lower arrangement and the two, the inner space of actuator upper shell 2 and actuator lower housing 3 constitutes the gas of cylinder
Chamber, the air cavity is interior to be equipped with piston 4 and spring 5, and in setting is moved towards up and down, the upper end of piston 4 is set on actuator the piston 4
In the groove formed in shell 2, the lower end of piston 4 passes through actuator lower housing 3, the inner wall of the side fitting cylinder of piston 4
And air cavity is separated into upper air cavity and lower air chamber, the spring 5 is located in upper air cavity, and spring 5 is placed on piston 4 and spring 5
Both ends are butted on respectively in the card slot formed on actuator upper shell 2 and piston 4.Wherein, the upper end of piston 4 and actuator upper shell
The inner wall of the lower end and the side and cylinder of actuator lower housing 3 and piston 4 of groove, piston 4 in 2 is to be slidably connected,
So that piston 4 can slide up and down in air cavity.Moreover, between groove in the upper end and actuator upper shell 2 of piston 4 and
It is respectively equipped with the first O-ring 6 between the lower end and actuator lower housing 3 of piston 4, between the side of piston 4 and the inner wall of cylinder
Equipped with the second O-ring 7, the first O-ring 6 and the second O-ring 7 play the sealing function between contact surface.
The actuator upper shell 2 is equipped with gas source inlet 201, and gas corresponding with gas source inlet 201 is equipped in piston 4
Source channels 401, the air supply channel 401 pass to lower air chamber out of piston 4；2 surface of actuator upper shell is additionally provided with to be connected with upper air cavity
Logical gas vent 202.
Both sides in the valve body 1 are respectively equipped with intake channel 101 and exit passageway 102, and intake channel 101 and outlet are logical
Road 102 is communicated in the space in valve body 1 jointly, and the valve body 1 is connect with the lower thread of actuator lower housing 3 so that institute
The lower space for stating space and actuator lower housing 3 in valve body 1 constitutes valve chamber, and valve seat 8, diaphragm 9, top are equipped in the valve chamber
Block 10 and diaphragm follower 11, for valve seat 8 in valve body 1 in the groove of formation, the film opened and closed for valve body 1 is arranged in valve seat 8 above
The material of piece 9, diaphragm 9 is nickel cobalt (alloy), and jacking block 10 and diaphragm follower 11, lower end and the diaphragm 9 of jacking block 10 is arranged in diaphragm 9 above
Center is corresponding, and the upper end of jacking block 10 is corresponding with across the lower end of piston 4 of actuator lower housing 3, and diaphragm follower 11 is placed on
10 side of jacking block, the side of diaphragm follower 11 and the inner wall of valve chamber are slidably connected.
In use, 201 not air inlet of gas source inlet, the elastic force control piston 4 of spring 5 moves downward, and makes jacking block 10 and diaphragm 9
It moves downward, resists valve seat 8 and just realize valve body 1；It, only need to be from 201 air inlet of gas source inlet, gas if valve body 1 opened
Body enters lower air chamber, and the medium for making piston 4 move up, and then being flowed through in valve body 1 makes jacking block 10 and diaphragm 9 move upwards and leave valve
Seat 8.The gas vent 202 on 2 surface of actuator upper shell is communicated with upper air cavity, and extra gas is enable to be discharged from upper air cavity,
To the impact force of actuator upper shell 2 when reduction air inlet, ensure whole air pressure balance.
It should be pointed out that for the utility model through absolutely proving, can also have a variety of transformation and the implementation of remodeling
Scheme, it is not limited to the specific embodiment of the above embodiment.Above-described embodiment as just the utility model explanation, and
It is not limitations of the present invention.In short, the scope of protection of the utility model should be including those for ordinary skill
It obviously converts or substitutes and retrofit for personnel, and be determined by the appended claims.
Claims (2)
1. a kind of pneumatic diaphragm valve, which is characterized in that including cylinder and valve body；
The cylinder includes actuator upper shell and actuator lower housing, and actuator upper shell is in upper and lower cloth with actuator lower housing
It sets and the two is threadedly coupled, the inner space of actuator upper shell and actuator lower housing constitutes the air cavity of cylinder, in the air cavity
Equipped with piston and spring, the top and bottom of the piston are slidably connected to actuator upper shell and actuator lower housing respectively
On, the lower end of piston passes through actuator lower housing, and the side of piston is slidably connected on the inner wall of cylinder and is separated into air cavity
Upper air cavity and lower air chamber, the spring are located in upper air cavity, and spring is placed on piston and the both ends of spring are butted on actuator respectively
On upper shell and piston, the actuator upper shell is equipped with gas source inlet, and gas corresponding with gas source inlet is equipped in piston
Source channels, the air supply channel pass to lower air chamber out of piston, and actuator upper shell surface is additionally provided with the exhaust being connected to upper air cavity
Hole；
Both sides in the valve body are respectively equipped with intake channel and exit passageway, and intake channel and exit passageway are communicated in valve jointly
An internal space, the valve body are connect with the lower part of actuator lower housing so that under the space and actuator in the valve body
The lower space of shell constitutes valve chamber, and valve seat, diaphragm, jacking block and diaphragm follower are equipped in the valve chamber, and valve seat is embedded on valve body,
Diaphragm is set above valve seat, jacking block and diaphragm follower are set above diaphragm, the lower end of jacking block is corresponding with center, jacking block
Upper end is corresponding with the lower end of piston, and diaphragm follower is placed on jacking block side, and the side of diaphragm follower and the inner wall sliding of valve chamber connect
It connects.
2. pneumatic diaphragm valve according to claim 1, which is characterized in that the upper end of the piston and actuator upper shell it
Between and the lower end and actuator lower housing of piston between be respectively equipped with the first O-ring；The side of piston and the inner wall of cylinder it
Between be equipped with the second O-ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820075707.2U CN207864683U (en) | 2018-01-17 | 2018-01-17 | A kind of pneumatic diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820075707.2U CN207864683U (en) | 2018-01-17 | 2018-01-17 | A kind of pneumatic diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207864683U true CN207864683U (en) | 2018-09-14 |
Family
ID=63462000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820075707.2U Expired - Fee Related CN207864683U (en) | 2018-01-17 | 2018-01-17 | A kind of pneumatic diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207864683U (en) |
-
2018
- 2018-01-17 CN CN201820075707.2U patent/CN207864683U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201229 Address after: 215421 No.397 Damuqiao Road, Shaxi Town, Taicang City, Suzhou City, Jiangsu Province Patentee after: Jipai fluid control technology (Jiangsu) Co.,Ltd. Address before: 258 Wanzhong Road, Nanqiao Town, Fengxian District, Shanghai, 201499 Patentee before: JIPAI FLUID CONTROL TECHNOLOGY (SHANGHAI) Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180914 Termination date: 20210117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |