CN204153285U - Pneumatic diaphragm control valve - Google Patents
Pneumatic diaphragm control valve Download PDFInfo
- Publication number
- CN204153285U CN204153285U CN201420409359.XU CN201420409359U CN204153285U CN 204153285 U CN204153285 U CN 204153285U CN 201420409359 U CN201420409359 U CN 201420409359U CN 204153285 U CN204153285 U CN 204153285U
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- China
- Prior art keywords
- valve
- valve body
- rod
- diaphragm
- spool
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of pneumatic diaphragm control valve, there is valve seat and valve body and pneumatic membrane room, described valve body is hollow structure, spool is provided with in valve body, spool is connected with valve rod, spool is through grinding, spool after grinding contacts with valve seat tightly, the surface of valve rod is straight just smooth, valve rod is provided with push rod, is provided with stroke pointer between valve rod and push rod, push rod is connected with the diaphragm being arranged on pneumatic membrane indoor, valve body and valve rod joint are provided with stuffing box packing, increase the sealability between valve body and valve rod.The utility model structure is simple, easy to use, has good precision and stability energy, in use uniform force, not fragile, and improve the sensitivity of diaphragm, diaphragm is thinner, extends the working life of the execution architecture of product, reduces costs.
Description
Technical field
The utility model relates to a kind of pneumatic diaphragm control valve.
Background technique
Pneumatic diaphragm control valve is referred to as modulating valve, be made up of actuator and controlling mechanism, it is a kind of regulating controller in pneumatic unit combination instrument, produce one of important devices of carrying out in process automatic regulating system, the development of pneumatic diaphragm control valve is from the history in initial 80 years so far of 20th century, successively create the modulating valve product of ten large classes, chemical industry, oil, metallurgy, electric power, the middle adjustment of light textile industry and telecontrol can be widely used in.
The pneumatic diaphragm control valve of present use cannot the good precision of precious permanent valve positioner and the stability of valve execution architecture, in use discontinuity, easy damage, cause shorten the working life of pneumatic diaphragm control valve, the distortion of diaphragm is sensitive not simultaneously, and of diaphragm itself is thicker, directly affect the working life of whole actuator, increase the cost of factory.
Model utility content
The technical problems to be solved in the utility model is: overcome the deficiency in prior art, provides a kind of long service life, the pneumatic diaphragm control valve that diaphragm deformation is sensitive.
The utility model solves the technological scheme that its technical problem adopts: a kind of pneumatic diaphragm control valve, there is valve seat and valve body and pneumatic membrane room, described valve body is hollow structure, spool is provided with in valve body, spool is connected with valve rod, spool is through grinding, spool after grinding contacts with valve seat tightly, the surface of valve rod is straight just smooth, valve rod is provided with push rod, stroke pointer is provided with between valve rod and push rod, push rod is connected with the diaphragm being arranged on pneumatic membrane indoor, valve body and valve rod joint are provided with stuffing box packing, increase the sealability between valve body and valve rod.
Further, described valve seat and valve body and pneumatic membrane room are formed in one structure.
Further, described valve body is provided with the stroke mark table matched with stroke pointer.
Further, described push rod being provided with spring, not easily there is clamping stagnation jumping phenomena in the flexible performance that spring improves push rod movement.
Further, described diaphragm adopts the pie-shaped piece of rubber layer and cloth layer compacting, and uniform force in using process is not fragile, and improve the sensitivity of diaphragm, diaphragm is thinner, extends the working life of the execution architecture of product, reduces costs.
The beneficial effects of the utility model are: the utility model structure is simple, easy to use, has good precision and stability energy, in use uniform force, not fragile, improve the sensitivity of diaphragm, diaphragm is thinner, extends the working life of the execution architecture of product, reduces costs.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
1. valve seats, 2. valve body in figure, 3. pneumatic membrane room, 4. spool, 5. valve rod, 6. push rod, 7. stroke pointer, 8. diaphragm, 9. stuffing box packing, 10. stroke mark table, 11. springs.
Embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, and therefore it only shows the formation relevant with the utility model.
A kind of pneumatic diaphragm control valve as shown in Figure 1, there is valve seat 1 and valve body 2 and pneumatic membrane room 3, valve body 2 is hollow structure, spool 4 is provided with in valve body 2, spool 4 is connected with valve rod 5, valve rod 5 is provided with push rod 6, stroke pointer 7 is provided with between valve rod 5 and push rod 6, push rod 6 is connected with the diaphragm 8 be arranged in pneumatic membrane room 3, valve body 2 and valve rod 5 joint are provided with stuffing box packing 9, valve seat 1 and valve body 2 and pneumatic membrane room 3 are formed in one structure, valve body 2 is provided with the stroke mark table 10 matched with stroke pointer 7, push rod 6 is provided with spring 11, diaphragm 8 adopts the pie-shaped piece of rubber layer and cloth layer compacting,
Concrete regulator converts electrical signals to gas signal function on diaphragm 8 by electropneumatic valve positioner, diaphragm 8 produces thrust, under the effect of spring 11, make push rod 6 move down, band ovable valve stem 2 and spool 4 move down, spool 4 is made to lift off a seat 1, thus pressurized air circulation, and not fragile in using process, extend the working life of product and execution architecture, reduce costs.
Above-mentioned mode of execution is only for illustrating technical conceive of the present utility model and feature; its object is to person skilled in the art can be understood content of the present utility model and be implemented; protection domain of the present utility model can not be limited with this; all equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed in protection domain of the present utility model.
Claims (5)
1. a pneumatic diaphragm control valve, there are valve seat (1) and valve body (2) and pneumatic membrane room (3), it is characterized in that: described valve body (2) is hollow structure, spool (4) is provided with in valve body (2), spool (4) is connected with valve rod (5), valve rod (5) is provided with push rod (6), stroke pointer (7) is provided with between valve rod (5) and push rod (6), push rod (6) is connected with the diaphragm (8) be arranged in pneumatic membrane room (3), valve body (2) and valve rod (5) joint are provided with stuffing box packing (9).
2. pneumatic diaphragm control valve according to claim 1, is characterized in that: described valve seat (1) and valve body (2) and pneumatic membrane room (3) are formed in one structure.
3. pneumatic diaphragm control valve according to claim 1, is characterized in that: described valve body (2) is provided with the stroke mark table (10) matched with stroke pointer (7).
4. pneumatic diaphragm control valve according to claim 1, is characterized in that: described push rod (6) is provided with spring (11).
5. pneumatic diaphragm control valve according to claim 1, is characterized in that: described diaphragm (8) adopts the pie-shaped piece of rubber layer and cloth layer compacting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420409359.XU CN204153285U (en) | 2014-07-23 | 2014-07-23 | Pneumatic diaphragm control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420409359.XU CN204153285U (en) | 2014-07-23 | 2014-07-23 | Pneumatic diaphragm control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204153285U true CN204153285U (en) | 2015-02-11 |
Family
ID=52511400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420409359.XU Expired - Fee Related CN204153285U (en) | 2014-07-23 | 2014-07-23 | Pneumatic diaphragm control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204153285U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276268A (en) * | 2014-07-24 | 2016-01-27 | 陈俊 | Pneumatic diaphragm control valve |
| CN105333209A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Pneumatic actuator structure |
| CN106197959A (en) * | 2015-04-30 | 2016-12-07 | 洪斐喆 | Detection method switch time of control valve for fluids |
| CN106402403A (en) * | 2016-10-24 | 2017-02-15 | 周末 | Engineering valve |
| CN107448665A (en) * | 2017-08-14 | 2017-12-08 | 太仓永固精密制件有限公司 | A kind of Pneumatic diaphragm valve |
| CN108981622A (en) * | 2018-10-24 | 2018-12-11 | 安徽省临泉县康悦电子科技有限公司 | A kind of instrument in pneumatic gauging aperture |
| CN109027396A (en) * | 2018-08-24 | 2018-12-18 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of novel pneumatic membrane valve |
| CN110701320A (en) * | 2018-07-10 | 2020-01-17 | 奥塔玛株式会社 | Flow regulating stop valve for sanitation |
-
2014
- 2014-07-23 CN CN201420409359.XU patent/CN204153285U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276268A (en) * | 2014-07-24 | 2016-01-27 | 陈俊 | Pneumatic diaphragm control valve |
| CN106197959A (en) * | 2015-04-30 | 2016-12-07 | 洪斐喆 | Detection method switch time of control valve for fluids |
| CN105333209A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Pneumatic actuator structure |
| CN106402403A (en) * | 2016-10-24 | 2017-02-15 | 周末 | Engineering valve |
| CN107448665A (en) * | 2017-08-14 | 2017-12-08 | 太仓永固精密制件有限公司 | A kind of Pneumatic diaphragm valve |
| CN110701320A (en) * | 2018-07-10 | 2020-01-17 | 奥塔玛株式会社 | Flow regulating stop valve for sanitation |
| CN109027396A (en) * | 2018-08-24 | 2018-12-18 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of novel pneumatic membrane valve |
| CN108981622A (en) * | 2018-10-24 | 2018-12-11 | 安徽省临泉县康悦电子科技有限公司 | A kind of instrument in pneumatic gauging aperture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20150723 |
|
| EXPY | Termination of patent right or utility model |