CN205401908U - Actuating mechanism with self sealss type rolling diaphragm - Google Patents
Actuating mechanism with self sealss type rolling diaphragm Download PDFInfo
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- CN205401908U CN205401908U CN201620037859.4U CN201620037859U CN205401908U CN 205401908 U CN205401908 U CN 205401908U CN 201620037859 U CN201620037859 U CN 201620037859U CN 205401908 U CN205401908 U CN 205401908U
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- rolling diaphragm
- membrane cover
- push rod
- actuator
- diaphragm
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Abstract
The utility model discloses an actuating mechanism with self sealss type rolling diaphragm, including last membrane lid, lower membrane lid, push rod, tray, rolling diaphragm and spring, the push rod passes the membrane covers down, the push rod top with tray and rolling diaphragm fixed connection, the valve rod is connected to the push rod bottom, surfaces to mate sets up the tray on the rolling diaphragm, the rolling diaphragm edge -fixed go up between membrane lid and the lower membrane lid, the cooperation sets up a plurality of springs between tray and the last membrane lid, the rolling diaphragm is close to the edge and is equipped with the seal lip limit, seal lip limit inboard is equipped with roll ripple structure. The utility model provides a simple structure, reasonable in design, long service life, sealed effectual, stability is strong, adjust that the precision is high, low cost's actuating mechanism with self sealss type rolling diaphragm.
Description
Technical field
This utility model belongs to valve actuator technical field, is specifically related to a kind of actuator with self-seal type rolling diaphragm.
Background technology
Pneumatic diaphragm control valve is a kind of regulation device in pneumatic unit combination instrument, it is produce one of the important devices carrying out in process automatic regulating system, it accepts the output signal of regulation meter and closes and Open valve, reach to be automatically adjusted pressure, temperature, flow and liquid level are isoparametric, can be widely applied to chemical industry, oil, metallurgy, electric power, being automatically adjusted and remotely control of light textile industry.At present, conventional pneumatic diaphragm control valve is mainly made up of valve mechanism and actuator, it is attached by the middle push rod being connected between the two, existing actuator is by membrane cover parts, diaphragm, spring and the support composition being connected with membrane cover parts bottom, being mounted with one on support can sliding up and down, and diaphragm and the push rod of valve mechanism valve rod can be connected, film room in actuator connects with outside control source of the gas, after signal pressure inputs film room, diaphragm produces thrust, compression spring, push rod is made to move, push rod drives the valve rod being connected, change the flow area between spool and the valve seat of valve mechanism, reach the thrust that the counteracting force of spring and signal pressure act on diaphragm to balance each other, thus reaching to be automatically adjusted the purpose of technological parameter.
nullAt present，Development along with industrial sector，The application of valve is more and more wider，The requirement of valve regulated precision and service life is also more and more higher，The effect controlling valve event is played in actuator in valve mechanism，Known currently used traditional diaphragm actuating mechanism (see figure 1)，Due to reasons in structure，The instability of effective diaphragm area often occurs during operation，Life-time service arises that leakage、Fracture phenomena，Cause production instability，The waste energy，Severe one causes stopping production，So，By the feedback to the analysis of diaphragm structure and field experience，We have found that tradition diaphragm leakage is typically all and the contact position at membrane cover and diaphragm occurs，The movement locus that tradition diaphragm is not completely fixed due to diaphragm in motor process just can produce the change of effective area，By traditional diaphragm being designed change，We have developed a kind of actuator with self-seal type rolling diaphragm.
Utility model content
Not enough for prior art, this utility model provides a kind of simple in construction, reasonable in design, long service life, the actuator with self-seal type rolling diaphragm with low cost, this actuator is by setting up sealing lip at the rolling diaphragm place of keeping to the side, in actuator after air chamber punching press, rolling diaphragm can be forced the membrane cover with actuator and fit, play self-packing effect, improve the sealing property of rolling diaphragm, overcome the shortcoming that conventional actuator life-time service easily leaks gas；This actuator by being designed to rolling ripple struction by the motion parts of rolling diaphragm, improve the service life of rolling diaphragm and the reliability of sealing, also enhance the stability of rolling diaphragm work simultaneously, and then improve stability and the degree of regulation of actuator.
For realizing utility model purpose, this utility model by the following technical solutions:
A kind of actuator with self-seal type rolling diaphragm, including upper membrane cover, lower membrane cover, push rod, pallet, rolling diaphragm and spring, the described push rod described lower membrane cover of traverse, described push rod top is fixing with described pallet and rolling diaphragm to be connected, described push rod bottom connects valve rod, described rolling diaphragm upper surface is equipped with pallet, described rolling diaphragm edge is fixed between described upper membrane cover and lower membrane cover, some springs it are equipped with between described pallet and upper membrane cover, the described rolling diaphragm place of keeping to the side is provided with sealing lip, it is provided with rolling ripple struction inside described sealing lip, this actuator good sealing effect, stability is strong, degree of regulation is high.
Being preferably, be connected with raising block above described rolling diaphragm edge, both fit tightly, good sealing effect.
Being preferably, described raising block is fitted with described upper membrane cover edges close, good sealing effect.
Being preferably, described upper membrane cover, raising block, rolling diaphragm and lower membrane cover are bolted to connection.
A kind of actuator with self-seal type rolling diaphragm of the present utility model provides the benefit that: this utility model provides a kind of simple in construction, reasonable in design, long service life, the actuator with self-seal type rolling diaphragm with low cost, this actuator is by setting up sealing lip at the rolling diaphragm place of keeping to the side, in actuator after air chamber punching press, rolling diaphragm can be forced the membrane cover with actuator and fit, play self-packing effect, improve the sealing property of rolling diaphragm, overcome the shortcoming that conventional actuator life-time service easily leaks gas；This actuator by being designed to rolling ripple struction by the motion parts of rolling diaphragm, improve the service life of rolling diaphragm and the reliability of sealing, also enhance the stability of rolling diaphragm work simultaneously, and then improve stability and the degree of regulation of actuator.
Accompanying drawing explanation
Fig. 1 is the structural representation of the actuator with tradition diaphragm；
Fig. 2 is this utility model structural representation with the actuator of self-seal type rolling diaphragm；
Fig. 3 is the structural representation of self-seal type rolling diaphragm of the present utility model；
Fig. 4 is the partial enlarged drawing at a place in Fig. 3；
Fig. 5 is the partial enlarged drawing at b place in Fig. 3；
Fig. 6 is the partial enlarged drawing at c place in Fig. 2；
In the figures above: 1, upper membrane cover；2, lower membrane cover；3, push rod；4, pallet；5, rolling diaphragm；6, spring；7, lip is sealed；8, ripple is rolled；9, raising block.
Detailed description of the invention
A kind of actuator with self-seal type rolling diaphragm of the present utility model is further described by detailed description of the invention below in conjunction with accompanying drawing.
nullAs shown in figs 1 to 6，A kind of actuator with self-seal type rolling diaphragm，Including upper membrane cover 1、Lower membrane cover 2、Push rod 3、Pallet 4、Rolling diaphragm 5 and spring 6，The described push rod 3 described lower membrane cover 2 of traverse，Described push rod 3 top is fixed be connected with described pallet 4 and rolling diaphragm 5，Described push rod 3 bottom connects valve rod，Described rolling diaphragm 5 upper surface is equipped with pallet 4，Described rolling diaphragm 5 edge is fixed between described upper membrane cover 1 and lower membrane cover 2，Some springs 6 it are equipped with between described pallet 4 and upper membrane cover 1，Described rolling diaphragm 5 place of keeping to the side is provided with sealing lip 7，Rolling ripple 8 structure it is provided with inside described sealing lip 7，This actuator good sealing effect、Stability is strong、Degree of regulation is high，It is connected with raising block 9 above described rolling diaphragm 5 edge，Both fit tightly，Described raising block 9 and the laminating of described upper membrane cover 1 edges close，Described upper membrane cover 1、Raising block 9、Rolling diaphragm 5 and lower membrane cover 2 are bolted to connection.
The foregoing is only specific embodiment of the utility model, but architectural feature of the present utility model is not limited thereto, this utility model may be used on similar product, any those skilled in the art is in field of the present utility model, and change or the modification made all are encompassed among the scope of the claims of the present utility model.
Claims (3)
1. the actuator with self-seal type rolling diaphragm, including upper membrane cover, lower membrane cover, push rod, pallet, rolling diaphragm and spring, the described push rod described lower membrane cover of traverse, described push rod top is fixing with described pallet and rolling diaphragm to be connected, described push rod bottom connects valve rod, described rolling diaphragm upper surface is equipped with pallet, described rolling diaphragm edge is fixed between described upper membrane cover and lower membrane cover, some springs it are equipped with between described pallet and upper membrane cover, it is characterized in that: the described rolling diaphragm place of keeping to the side is provided with sealing lip, it is provided with rolling ripple struction inside described sealing lip, it is connected with raising block above described rolling diaphragm edge, both fit tightly.
2. the actuator with self-seal type rolling diaphragm according to claim 1, it is characterised in that: described raising block and the laminating of described upper membrane cover edges close.
3. the actuator with self-seal type rolling diaphragm according to claim 1, it is characterised in that: described upper membrane cover, raising block, rolling diaphragm and lower membrane cover are bolted to connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620037859.4U CN205401908U (en) | 2016-01-15 | 2016-01-15 | Actuating mechanism with self sealss type rolling diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620037859.4U CN205401908U (en) | 2016-01-15 | 2016-01-15 | Actuating mechanism with self sealss type rolling diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205401908U true CN205401908U (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620037859.4U Active CN205401908U (en) | 2016-01-15 | 2016-01-15 | Actuating mechanism with self sealss type rolling diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205401908U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443846A (en) * | 2016-01-15 | 2016-03-30 | 浙江三方控制阀股份有限公司 | Actuating mechanism with self-sealing rolling diaphragm |
-
2016
- 2016-01-15 CN CN201620037859.4U patent/CN205401908U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443846A (en) * | 2016-01-15 | 2016-03-30 | 浙江三方控制阀股份有限公司 | Actuating mechanism with self-sealing rolling diaphragm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |