CN205190776U - Pneumatic membrane regulating valve - Google Patents
Pneumatic membrane regulating valve Download PDFInfo
- Publication number
- CN205190776U CN205190776U CN201520828984.2U CN201520828984U CN205190776U CN 205190776 U CN205190776 U CN 205190776U CN 201520828984 U CN201520828984 U CN 201520828984U CN 205190776 U CN205190776 U CN 205190776U
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- China
- Prior art keywords
- valve
- spring
- support
- case
- membrane cover
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- Expired - Fee Related
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Abstract
The utility model provides a pneumatic membrane regulating valve, include valve body, disk seat, case, valve rod, support, connecting pipe, push rod, lower membrane lid, spring, diaphragm and go up the membrane lid, valve body one end is equipped with the disk seat just disk seat fixed surface sets up the hemisphere case, and the case fixed surface that tells of institute connects the valve rod just the valve rod sets up inside the support, support one end is equipped with two connecting pipes, connecting pipe one end ejector tie rod just membrane lid under the connecting pipe other end fixed connection, membrane lid surface is equipped with the spring down, and this novel compact structure promotes the case moving part by the pneumatic film piece and reaches on -off control, is equipped with supporting spring and activity seal gasket on the disk seat, is equipped with the cooperation groove on the case, reduces the circumstances of actuating mechanism gas leakage, and the reliability is than higher, and life can obtain guaranteeing, and the comparative difference in cost is low, and its sealing performance is strong, has guaranteed stability in use and safety in utilization, and sealing performance is strong on the whole for it, and the suitability is good, and the practicality is good.
Description
Technical field
The utility model relates to a kind of modulating valve, particularly a kind of pneumatic diaphragm control valve.
Background technique
Pneumatic diaphragm control valve is a kind of regulating controller in pneumatic unit combination instrument, is to produce to carry out one of important devices in process automatic regulating system, and modulating valve is made up of electric actuator or pneumatic actuator and modulating valve two-part.Modulating valve is divided into straight-through single seated modulating valve and two kinds, straight-through double seat modulating valve usually, and the latter has that negotiability is large, imbalance does feature that is little and stable operation, so be usually specially adapted to the few occasion of large discharge, high pressure drop and leakage.The output signal that it accepts regulation meter is closed and Open valve, reaches the isoparametric automatic adjustment of pressure, temperature, flow and liquid level, can be widely used in chemical industry, oil, metallurgy, electric power, the automatic adjustment of light textile industry and telecontrol.Pneumatic diaphragm control valve generally comprises top dress handwheel and pneumatic diaphragn actuating mechanism, top dress handwheel is connected with pneumatic diaphragn actuating mechanism, therefore several leakage points can be produced, in order to solve the problem of this sealing, need to use special line with rubber pad to help realize sealing, the cost compare that gets off like this is high, and, because line with rubber pad is easily aging, reliability is also lower.
Model utility content
The technical problems to be solved in the utility model overcomes existing defect, provides a kind of pneumatic diaphragm control valve, conveniently can work, increase work efficiency, and effectively can solve the problem in background technique.
In order to solve the problems of the technologies described above, the utility model provides following technological scheme:
A kind of pneumatic diaphragm control valve of the utility model, comprise valve body, valve seat, spool, valve rod, support, connecting tube, push rod, lower membrane cover, spring, diaphragm and upper membrane cover, described valve body one end is provided with valve seat and described valve base surface is fixedly installed hemisphere spool, spool face of telling is fixedly connected with valve rod and described valve rod is arranged at internal stent, described support one end is provided with two connecting tubes, described connecting tube one end connects push rod and the described connecting tube the other end is fixedly connected with lower membrane cover, and described lower membrane cover surface is provided with spring.
Further, the described spring the other end is fixedly connected with diaphragm.
Further, connected by spring supporting between described diaphragm and lower membrane cover.
Further, described lower membrane cover two ends and upper membrane cover are fixedly connected to form seal space.
Further, described push rod is cylindrical structural and described push rod top is fixedly connected with diaphragm.
The beneficial effect that compared with prior art the utility model reaches is:
The utility model compact structure, reach break-make by air bladder sheet promotion spool moving part to control, valve seat is provided with supported spring and movable sealing pad, spool is provided with mating groove, reduce the situation of actuator's gas leakage, Reliability comparotive is high, working life can be guaranteed, and cost compare is low, and its sealability is strong, ensure that stability in use and safety in utilization, sealability is strong on the whole for it, and applicability is good, and practicability is good, there is good economic benefit and social benefit, be suitable for promoting the use of.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, does not form restriction of the present utility model with embodiment one of the present utility model.
In the accompanying drawings:
Fig. 1 is the overall structure schematic diagram described in the utility model embodiment;
Number in the figure: 1, valve body, 2, valve seat, 3, spool, 4, valve rod, 5, support, 6, connecting tube, 7, push rod, 8, lower membrane cover, 9, spring, 10, diaphragm, 11, upper membrane cover.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the utility model, and be not used in restriction the utility model.
Embodiment: as shown in Figure 1, a kind of pneumatic diaphragm control valve of the utility model, comprise valve body 1, valve seat 2, spool 3, valve rod 4, support 5, connecting tube 6, push rod 7, lower membrane cover 8, spring 9, diaphragm 10 and upper membrane cover 11, described valve body 1 one end is provided with valve seat 2 and described valve seat 2 surface is fixedly installed hemisphere spool 3, spool of telling 3 surface is fixedly connected with valve rod 4 and described valve rod 4 is arranged at support 5 inside, described support 5 one end is provided with two connecting tubes 6, described connecting tube 6 one end connects push rod 7 and described connecting tube 6 the other end is fixedly connected with lower membrane cover 8, described lower membrane cover 8 surface is provided with spring 9.
As a kind of technical optimization scheme of the present utility model, described spring 9 the other end is fixedly connected with diaphragm 10, by spring 9 support and connection between described diaphragm 10 and lower membrane cover 8, described lower membrane cover 8 two ends and upper membrane cover 11 are fixedly connected to form seal space, and described push rod 7 is cylindrical structural and described push rod 7 top is fixedly connected with diaphragm 10.
In use, after air chamber have input 0.02 ~ 0.10MPa signal pressure, film produces thrust to the utility model, thrust disc is moved down, Compress Spring, drive push rod, valve rod, spool to move down, spool have left valve seat, thus pressurized air is circulated.When signal pressure maintains a timing, valve just maintains in certain aperture.Pneumatic control valve is exactly take pressurized air as power source, take cylinder as final controlling element, and go to drive valve by means of annexes such as electropneumatic valve positioner, transducer, solenoid valve, guarantor position valves, realize switching value or proportion expression adjustment, the control signal of Distributed Control System completes the various technique ginseng such as flow, pressure, temperature of adjutage track media.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a pneumatic diaphragm control valve, comprise valve body (1), valve seat (2), spool (3), valve rod (4), support (5), connecting tube (6), push rod (7), lower membrane cover (8), spring (9), diaphragm (10) and upper membrane cover (11), it is characterized in that, described valve body (1) one end is provided with valve seat (2) and described valve seat (2) surface is fixedly installed hemisphere spool (3), spool of telling (3) surface is fixedly connected with valve rod (4) and described valve rod (4) is arranged at support (5) inside, described support (5) one end is provided with two connecting tubes (6), described connecting tube (6) one end connects push rod (7) and described connecting tube (6) the other end is fixedly connected with lower membrane cover (8), described lower membrane cover (8) surface is provided with spring (9).
2. a kind of pneumatic diaphragm control valve according to claim 1, is characterized in that, described spring (9) the other end is fixedly connected with diaphragm (10).
3. a kind of pneumatic diaphragm control valve according to claim 1, is characterized in that, by spring (9) support and connection between described diaphragm (10) and lower membrane cover (8).
4. a kind of pneumatic diaphragm control valve according to claim 1, is characterized in that, described lower membrane cover (8) two ends and upper membrane cover (11) are fixedly connected to form seal space.
5. a kind of pneumatic diaphragm control valve according to claim 1, is characterized in that, described push rod (7) for cylindrical structural and described push rod (7) top be fixedly connected with diaphragm (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520828984.2U CN205190776U (en) | 2015-10-26 | 2015-10-26 | Pneumatic membrane regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520828984.2U CN205190776U (en) | 2015-10-26 | 2015-10-26 | Pneumatic membrane regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205190776U true CN205190776U (en) | 2016-04-27 |
Family
ID=55783769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520828984.2U Expired - Fee Related CN205190776U (en) | 2015-10-26 | 2015-10-26 | Pneumatic membrane regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205190776U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351536A (en) * | 2015-10-26 | 2016-02-24 | 无锡市圣科不锈钢气动自控阀门厂 | Pneumatic film adjusting valve |
| CN110701320A (en) * | 2018-07-10 | 2020-01-17 | 奥塔玛株式会社 | Flow regulating stop valve for sanitation |
-
2015
- 2015-10-26 CN CN201520828984.2U patent/CN205190776U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351536A (en) * | 2015-10-26 | 2016-02-24 | 无锡市圣科不锈钢气动自控阀门厂 | Pneumatic film adjusting valve |
| CN110701320A (en) * | 2018-07-10 | 2020-01-17 | 奥塔玛株式会社 | Flow regulating stop valve for sanitation |
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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: 20160427 Termination date: 20161026 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |