CN201836511U - Normally-closed pneumatic film actuator of valve - Google Patents
Normally-closed pneumatic film actuator of valve Download PDFInfo
- Publication number
- CN201836511U CN201836511U CN201020603896XU CN201020603896U CN201836511U CN 201836511 U CN201836511 U CN 201836511U CN 201020603896X U CN201020603896X U CN 201020603896XU CN 201020603896 U CN201020603896 U CN 201020603896U CN 201836511 U CN201836511 U CN 201836511U
- Authority
- CN
- China
- Prior art keywords
- film
- diaphragm
- spring
- push rod
- cavity
- 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
- 239000012528 membrane Substances 0.000 claims description 27
- 210000004712 air sac Anatomy 0.000 claims description 11
- 238000013016 damping Methods 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 description 13
- 239000012530 fluid Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009428 plumbing Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000009183 running Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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- Fluid-Driven Valves (AREA)
Abstract
The utility model discloses a normally-closed pneumatic film actuator of a valve, which comprises a support. A film cavity body is disposed on the support. The normally-closed pneumatic film actuator is characterized in that the film cavity body consists of a lower film cover and an upper film cover which are detachably connected, a film cavity is formed between the lower film cover and the upper film cover, a film is disposed in the film cavity, a spring is arranged inside the film cavity, the upper end and the lower end of the spring are respectively arranged on the lower film cover and the film so that the spring exerts spring acting force on the film, a gas inlet is arranged between the film and the upper film cover, the lower end of a push rod penetrates into a cavity of the support in a matching manner, the upper end of the push rod contacts with the film, and the film drives the push rod to move downwards. The normally-closed pneumatic film actuator is simple in structure, has fewer integral components and is widely applicable to various control valves. Action generated by the actuator is higher in flexibility and sensibility, actuating time needing for generating the action is shortened, and work efficiency of the valve is improved. The push rod can stably move up and down and can drive a valve spool, a valve plate and the like to move stably.
Description
Technical field
The utility model relates to the Normally closed type air bladder final controlling element of final controlling element, especially valve of the pipeline flow modulating valve of a kind of gas, liquid (fluid).
Background technique
In the conveyance conduit of gas, liquid (fluid), a plurality of valves all will be set to be controlled, the unlatching of controlling plumbing fixtures, close or the size of opening degree etc., to produce corresponding action, pipeline is opened as required and controlled the degree of unlatching or close, make gas, liquid (fluid) etc. pass through control valve.The modulating valve of prior art, its final controlling element drives valve rod and moves up and down (modulating valve) or drive valve rod rotation (butterfly valve) etc., with the unlatching of controlling plumbing fixtures, close or the big or small degree of opening degree, final controlling element is the vitals of modulating valve, directly determines the flexibility of modulating valve action and the length of time of implementation.The final controlling element of modulating valve in the prior art, mostly structure is complicated, and the flexibility, the sensitivity that produce action are relatively poor, and the time of implementation that needs is longer, and the corresponding efficient that reduces valve can not adapt to the needs that pipeline is controlled.
Summary of the invention
Above-mentioned deficiencies such as the utility model is complicated at the actuator structure of prior art valve, produce the flexibility of action and sensitivity is relatively poor, time of implementation of needing is long provide the Normally closed type air bladder final controlling element that a kind of flexibility simple in structure, that produce action is higher, shorten the valve of time of implementation.
The technical solution of the utility model: the Normally closed type air bladder final controlling element of valve, comprise support, the support centre that is rotary structure has cavity, is provided with the diaphragm cavity on support; It is characterized in that: described diaphragm cavity is made up of the following membrane cover and the last membrane cover of detachable flexible connection, forms diaphragm chamber between following membrane cover and the last membrane cover, and diaphragm arrangement is in diaphragm chamber; Be provided with spring in diaphragm chamber, the upper and lower end of spring is separately positioned on membrane cover and the diaphragm, gives acting force of the spring of diaphragm; Between diaphragm and following membrane cover, be provided with the gas access; The lower end of push rod cooperates the cavity that penetrates support, and the upper end of push rod is connected with diaphragm or contacts, and diaphragm drives push rod and moves upward.
Further feature is: between diaphragm and spring spring seat is set, the lower end of spring is arranged on the spring seat, and the upper end of push rod is connected with spring seat.
In the following membrane cover limiting stopper is set.
Spring is two groups, is symmetrical arranged with respect to push rod.
Between support and diaphragm cavity, be provided with damping pad.
The Normally closed type air bladder final controlling element of valve of the present utility model with respect to prior art, has following characteristics:
1, simple in structure, one-piece element is less, is widely used in the various control valve.
2, the flexibility and the sensitivity of generation action are higher, and the time of implementation that producing action needs is shortened,
Improved the working efficiency of valve.
3, push rod easy motion up and down, push rod can drive the spool that is attached thereto, valve plate etc. move steady,
Description of drawings
Fig. 1 is the utility model actuator structure sectional view.
Embodiment
In figure, the Normally closed type air bladder final controlling element of valve of the present utility model, comprise support 1, support 1 centre that is rotary structure has cavity, is provided with diaphragm cavity 2 on support 1, described diaphragm cavity 2 is by membrane cover 3 and last membrane cover 4 are formed down, detachable flexible connection between following membrane cover 3 and the last membrane cover 4 forms diaphragm chamber 5 between following membrane cover 3 and the last membrane cover 4, diaphragm 6 is arranged in the diaphragm chamber 5, diaphragm 6 is rubber-like thin slices, can upspring or to recessed; Flexibly connect mutually by bolt, nut between membrane cover 3 and the last membrane cover 4 under shown in the figure; Be provided with spring 7 in diaphragm chamber 5, the upper and lower end of spring 7 is separately positioned on membrane cover 4 and the diaphragm 6, gives 6 one acting force of the spring of diaphragm, makes it do the time spent and act on the diaphragm 6 not being subjected to external force downwards; Between diaphragm 6 and following membrane cover 3, be provided with gas access 8, extraneous pressurized gas enters between diaphragm 6 and the following membrane cover 3 by gas access 8, promotes diaphragm 6 upwards motion (to fovea superior) in diaphragm chamber 5.The lower end of push rod 9 cooperates the cavity that penetrates support 1, and the upper end of push rod 9 is passed diaphragm 6 and is connected with diaphragm 6 or contacts, and during to fovea superior, drive push rod 9 moves upward at diaphragm 6.
In order to prevent that spring 7 from scratching diaphragm 6 and making diaphragm 6 stressed even when directly contacting with diaphragm 6, between diaphragm 6 and spring 7, spring seat 10 is set, the lower end of spring 7 is arranged on the spring seat 10, is diaphragm 6 below the spring seat 10, and the upper end of push rod 9 is connected with spring seat 10.
More steady in order to move, in the membrane cover 3 limiting stopper 11 is being set down, the minimum travel position of limiting stopper 11 energy limiting diaphragms 6 or push rod 9 prevents that diaphragm 6 from stopping up gas accesses 8, makes diaphragm 6 and push rod 9 smooth runnings.Simultaneously, being arranged on the spring 7 in the diaphragm chamber 5, generally is left and right symmetrically arranged two groups, is symmetrical arranged with respect to push rod 9, and push rod 9 Shi Nenggeng that moves up and down is steady, increases the stationarity of modulating valve.
In order to reach better effectiveness in vibration suppression, make valve body motion more steady, between support 1 and diaphragm cavity 2, be provided with damping pad 12, damping pad 12 is cushions such as the rubber used always, plastics.
Working procedure of the present utility model: final controlling element of the present utility model is a Normally closed type, and push rod 9 is in low level when flat, allows its spool that connects below, valve plate etc. be in closed condition, and liquid (fluid) can not pass through modulating valve; When needs are opened modulating valve, start external gas compressing apparatus, pressurized gas is entered in the diaphragm cavity 2 by gas access 8, pressurized gas is given diaphragm 6 pressure, promote diaphragm 6 up motion (to fovea superior) in diaphragm chamber 5, diaphragm 6 just drives push rod 9(or drives push rods 9 by spring seat 10) elastic force that overcomes spring 7 goes up motion downwards, and push rod 9 its spools that connect below of drive, valve plate etc. move upward, open modulating valve, liquid (fluid) etc. just can pass through modulating valve.When needs are closed modulating valve, close gas compressing apparatus, the gas between diaphragm 6 and the last membrane cover 3 to be discharged, diaphragm 6 no longer is subjected to the gas pressure effect, and under the elastic force operation of spring 7, diaphragm 6 and push rod 9 down reset, and push rod 9 down moves, and closes modulating valve.
Claims (5)
1. the Normally closed type air bladder final controlling element of valve comprises support (1), and support (1) centre that is rotary structure has cavity, is provided with diaphragm cavity (2) on support (1); It is characterized in that: described diaphragm cavity (2) is made up of the following membrane cover (3) and the last membrane cover (4) of detachable flexible connection, forms diaphragm chamber (5) between following membrane cover (3) and the last membrane cover (4), and diaphragm (6) is arranged in the diaphragm chamber (5); Be provided with spring (7) in diaphragm chamber (5), the upper and lower end of spring (7) is separately positioned on membrane cover (4) and the diaphragm (6), gives (6) acting force of the spring of diaphragm; Between diaphragm (6) and following membrane cover (3), be provided with gas access (8); The lower end of push rod (9) cooperates the cavity that penetrates support (1), and the upper end of push rod (9) is connected with diaphragm (6) or contacts, and diaphragm (6) drives push rod (9) and moves upward.
2. according to the Normally closed type air bladder final controlling element of the described valve of claim 1, it is characterized in that: between diaphragm (6) and spring (7), spring seat (10) is set, the lower end of spring (7) is arranged on the spring seat (10), and the upper end of push rod (9) is connected with spring seat (10).
3. according to the Normally closed type air bladder final controlling element of claim 1 or 2 described valves, it is characterized in that: limiting stopper (11) is set in the following membrane cover (3).
4. according to the Normally closed type air bladder final controlling element of the described valve of claim 3, it is characterized in that: spring (7) is two groups, is symmetrical arranged with respect to push rod (9).
5. according to the Normally closed type air bladder final controlling element of the described valve of claim 4, it is characterized in that: between support (1) and diaphragm cavity (2), be provided with damping pad (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020603896XU CN201836511U (en) | 2010-11-12 | 2010-11-12 | Normally-closed pneumatic film actuator of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020603896XU CN201836511U (en) | 2010-11-12 | 2010-11-12 | Normally-closed pneumatic film actuator of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201836511U true CN201836511U (en) | 2011-05-18 |
Family
ID=44006615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020603896XU Expired - Fee Related CN201836511U (en) | 2010-11-12 | 2010-11-12 | Normally-closed pneumatic film actuator of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201836511U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499840A (en) * | 2016-10-19 | 2017-03-15 | 上海盛唐阀门科技有限公司 | A kind of pneumatic tubing clip valve |
| CN107676532A (en) * | 2017-11-21 | 2018-02-09 | 山东沃克控制阀有限公司 | A kind of pneumatic means for automatically controlling fluid output |
| CN110454588A (en) * | 2019-08-12 | 2019-11-15 | 上海船舶工艺研究所(中国船舶工业集团公司第十一研究所) | A kind of closed type Pneumatic grinding material valve of regulating flow quantity |
-
2010
- 2010-11-12 CN CN201020603896XU patent/CN201836511U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499840A (en) * | 2016-10-19 | 2017-03-15 | 上海盛唐阀门科技有限公司 | A kind of pneumatic tubing clip valve |
| CN107676532A (en) * | 2017-11-21 | 2018-02-09 | 山东沃克控制阀有限公司 | A kind of pneumatic means for automatically controlling fluid output |
| CN110454588A (en) * | 2019-08-12 | 2019-11-15 | 上海船舶工艺研究所(中国船舶工业集团公司第十一研究所) | A kind of closed type Pneumatic grinding material valve of regulating flow quantity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20131112 |