CN209622105U - A kind of rubber diaphragm for control valve - Google Patents
A kind of rubber diaphragm for control valve Download PDFInfo
- Publication number
- CN209622105U CN209622105U CN201920331464.9U CN201920331464U CN209622105U CN 209622105 U CN209622105 U CN 209622105U CN 201920331464 U CN201920331464 U CN 201920331464U CN 209622105 U CN209622105 U CN 209622105U
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- rubber diaphragm
- cavity
- piston
- mounting post
- retainer ring
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Abstract
The utility model belongs to field of rubber technology, in particular a kind of rubber diaphragm for control valve, including rubber diaphragm and piston rod, cavity is offered on the piston rod, the rubber diaphragm is provided centrally with perpendicular piston mounting post, support edge is provided at the piston mounting post and rubber diaphragm integrated molding, the rubber diaphragm it is opposite with piston mounting post be provided with thickening layer on one side, the centre of the rubber diaphragm and piston mounting post is provided with cavity, the top of the cavity is provided with piston cap, is fixedly connected with connecting rod in the cavity；The utility model, pass through the collective effect of connecting rod, pin shaft, motion bar, spring and fixed block, under the action of recoil of spring, so that fixed block is compressed cavity and then compresses retainer ring, to make retainer ring be embedded in cavity, make retainer ring during long-time use, piston mounting post is fixed always with cavity, to ensure that the leakproofness between rubber diaphragm and piston rod.
Description
Technical field
The utility model belongs to field of rubber technology, and in particular to a kind of rubber diaphragm for control valve.
Background technique
Rubber diaphragm be mainly used in flow, pressure, differential, liquid level, thermostat accumulated heat compensation etc. valve, regulating valve,
In automation hunting gear, switch and counter, it is advantageous that functional reliability is high, plyability is good, long working life and
It is at low cost；
The structure of existing rubber diaphragm is usually: the connecting hole structure by diaphragm ontology and positioned at diaphragm body central position
At free end is forge piece of step type structure, and end is equipped with external screw thread and its diameter of axle is less than connecting rod body aperture, and interlinking lever end passes through diaphragm
Connecting hole and diaphragm be fixed with nut be installed on diaphragm connecting rod free end, but diaphragm is also easy to produce plasticity change because of compression
Shape is that the phenomenon that there are stress concentrations on the periphery of position is fixedly mounted in connecting rod, and also will receive the work of alternation torque
With, since diaphragm ontology is relatively thin, easily damaged in the position that stress is concentrated, so that diaphragm is caused to can not work normally, it is former
The use assembly of diaphragm is that edge and shell are squeezed and sealed, and makes intracavitary holding sealing state, usually wants have hole among diaphragm, piston
Bar passes through diaphragm, diaphragm both sides sealing, in fact it could happen that leakage causes to control defective valve, therefore people design one kind for controlling
The rubber diaphragm of valve processed, the patent No.: CN205401906U solves former diaphragm installation inconvenience, and sealing is unreliable and uses the longevity
The problem that life is not grown, but the retainer ring in this patent, during diaphragm long-time use, retainer ring is easy to calm intracavitary disengaging
It goes out, making diaphragm seal not sternly leads to the phenomenon that leaking appearance, and so as to cause control defective valve, therefore, this patent provides one
Kind can be with the rubber diaphragm of fixing seal.
Utility model content
To solve the problems mentioned above in the background art.The utility model provides a kind of rubber membrane for control valve
Piece has the characteristics that fixing seal, avoids leaking and ensure that the service life of rubber diaphragm.
To achieve the above object, the utility model provides the following technical solutions: a kind of rubber diaphragm for control valve, packet
Rubber diaphragm and piston rod are included, cavity is offered on the piston rod, the rubber diaphragm is provided centrally with perpendicular work
Mounting post is filled in, support edge is provided at the piston mounting post and rubber diaphragm integrated molding, the rubber diaphragm and piston are installed
Column it is opposite be provided with thickening layer on one side, the centre of the rubber diaphragm and piston mounting post is provided with cavity, the cavity
Top is provided with piston cap, and connecting rod is fixedly connected in the cavity, and pin shaft, the pin shaft hinge are provided in the connecting rod
Motion bar there are two connecing, and two motion bars are arranged at X-shaped, and the fixed company in side that two motion bars are mutually separate
It is connected to spring, and the other end of two springs is symmetrically fixedly connected on the wall of cavity, the appearance of the piston mounting post
Face is provided with retainer ring, and one end of the motion bar is provided with fixed block, and the side of the fixed block and the inner wall of cavity overlap, and
The retainer ring is corresponding with the position of fixed block.
Preferably, cambered bar is arranged in the other end of the motion bar.
Preferably, the thickening layer and rubber diaphragm are integrally formed.
Preferably, the outer surface of the piston cap is provided with external screw thread, and the top inner wall of the cavity is provided with internal screw thread,
The external screw thread is threadedly coupled with internal screw thread.
Preferably, the material of the retainer ring is rubber, and the retainer ring is embedded in cavity.
Compared with prior art, the utility model has the beneficial effects that
1, the utility model, by the collective effect of connecting rod, pin shaft, motion bar, spring and fixed block, in recoil of spring
Under the action of, so that fixed block is compressed cavity and then compress retainer ring, so that retainer ring be made to be embedded in cavity, makes retainer ring for a long time
During, piston mounting post is fixed always with cavity, ensure that the leakproofness between rubber diaphragm and piston rod.
2, the utility model is replaced by piston cap, internal screw thread and externally threaded collective effect to rubber diaphragm
When, internal screw thread is separated with external screw thread by rotary-piston lid, is then mutually leaned on by tweezers tool to two motion bar one
Close power, thus overlap fixed block no longer with retainer ring inner wall, so as to which piston mounting post is taken out out of piston rod, behaviour
Make simple and convenient.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram amplified at A in Fig. 1；
In figure: 1, rubber diaphragm；2, edge is held in the palm；3, piston mounting post；4, motion bar；5, pin shaft；6, fixed block；7, retainer ring；
8, connecting rod；9, spring；10, thickening layer；11, cavity；12, radian bar；13, internal screw thread；14, external screw thread；15, piston cap；16,
Cavity；17, piston rod.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment
The utility model is the following technical schemes are provided: a kind of rubber diaphragm for control valve referring to FIG. 1-2, including
Rubber diaphragm 1 and piston rod 17 offer cavity 16 on the piston rod 17, and the rubber diaphragm 1 is provided centrally with to hang down with it
Support is provided at straight piston mounting post 3, the piston mounting post 3 and 1 integrated molding of rubber diaphragm along 2, the rubber diaphragm 1
Opposite with piston mounting post 3 to be provided with thickening layer 10 on one side, the centre of the rubber diaphragm 1 and piston mounting post 3 is provided with
Cavity 11, the top of the cavity 11 are provided with piston cap 15, connecting rod 8, the connection are fixedly connected in the cavity 11
Pin shaft 5 is provided on bar 8, the pin shaft 5 is hinged, and there are two motion bars 4, and two motion bars 4 are arranged at X-shaped, and two
The mutually separate side of the motion bar 4 is fixedly connected to spring 9, and the other end of two springs 9 is symmetrically fixedly connected
On the wall of cavity 11, the outer surface of the piston mounting post 3 is provided with retainer ring 7, and one end of the motion bar 4 is provided with fixation
Block 6, the side of the fixed block 6 and the inner wall of cavity 16 overlap, and the retainer ring 7 is corresponding with the position of fixed block 6, passes through
The collective effect of connecting rod 8, pin shaft 5, motion bar 4, spring 9 and fixed block 6 makes fixed block 6 under the action of spring 9 is sprung back
It compresses cavity 16 and then compresses retainer ring 7, so that retainer ring 7 be made to be embedded in cavity 16, piston mounting post 3 and cavity 16 are solid always
It is fixed, to ensure that the leakproofness between rubber diaphragm 1 and piston rod 17.
Specifically, cambered bar 12 is arranged in the other end of the motion bar 4, staff is facilitated to rubber diaphragm 1
Replacement.
Specifically, the thickening layer 10 is integrally formed with rubber diaphragm 1, thickening layer 10 can play reinforcement protection rubber membrane
The effect at the position that piece 1 is contacted with other elements.
Specifically, the outer surface of the piston cap 15 is provided with external screw thread 14, the top inner wall of the cavity 11 is provided with
Internal screw thread 13, the external screw thread 14 are threadedly coupled with internal screw thread 13, and internal screw thread 13 and external screw thread 14 ensure that piston cap 15 and sky
Leakproofness between chamber 11, the setting of piston cap 15, the convenient replacement to rubber diaphragm 1.
Specifically, the material of the retainer ring 7 is rubber, and the retainer ring 7 is embedded in cavity 16, and retainer ring 7 has high-elastic
Property, it ensure that the fixed effect of retainer ring 7.
The working principle and process for using of the utility model: the utility model leads to when dismantling to rubber diaphragm 1
Overwinding, which turns a work corking 15, separates internal screw thread 13 with external screw thread 14, then mutual to two 12 1, radian bars by tweezers tool
Close power, at the same it is close to each other with two motion bars 4, thus move two fixed blocks 6 to direction close to each other, Gu
Determine the no longer compress collar 7 of block 6, separate retainer ring 7 with cavity 16, therefore piston mounting post 3 can be separated with piston rod 17, i.e.,
Can in rubber diaphragm 1, piston mounting post 3 and piston mounting post 3 component and piston rod 17 disassembly, replacement.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of rubber diaphragm for control valve, including rubber diaphragm (1) and piston rod (17), it is characterised in that: the work
It is offered on stopper rod (17) cavity (16), the rubber diaphragm (1) is provided centrally with perpendicular piston mounting post (3), institute
It states and is provided with support at piston mounting post (3) and rubber diaphragm (1) integrated molding along (2), the rubber diaphragm (1) and piston installation
Column (3) is opposite to be provided with thickening layer (10) on one side, and the intermediate setting of the rubber diaphragm (1) and piston mounting post (3) is free
The top of chamber (11), the cavity (11) is provided with piston cap (15), is fixedly connected with connecting rod (8) in the cavity (11),
It is provided with pin shaft (5) on the connecting rod (8), the pin shaft (5) is hingedly there are two motion bar (4), and two motion bars
(4) it is arranged at X-shaped, and two mutually separate sides of the motion bar (4) are fixedly connected to spring (9), and two bullets
The other end of spring (9) is symmetrically fixedly connected on the wall of cavity (11), and the outer surface of the piston mounting post (3) is provided with retainer ring
(7), one end of the motion bar (4) is provided with fixed block (6), and the side of the fixed block (6) and the inner wall of cavity (16) are taken
It connects, and the retainer ring (7) is corresponding with the position of fixed block (6).
2. a kind of rubber diaphragm for control valve according to claim 1, it is characterised in that: the motion bar (4)
Cambered bar (12) is arranged in the other end.
3. a kind of rubber diaphragm for control valve according to claim 1, it is characterised in that: the thickening layer (10) with
Rubber diaphragm (1) is integrally formed.
4. a kind of rubber diaphragm for control valve according to claim 1, it is characterised in that: the piston cap (15)
Outer surface is provided with external screw thread (14), and the top inner wall of the cavity (11) is provided with internal screw thread (13), the external screw thread (14)
It is threadedly coupled with internal screw thread (13).
5. a kind of rubber diaphragm for control valve according to claim 1, it is characterised in that: the material of the retainer ring (7)
Matter is rubber, and the retainer ring (7) is embedded in cavity (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920331464.9U CN209622105U (en) | 2019-03-15 | 2019-03-15 | A kind of rubber diaphragm for control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920331464.9U CN209622105U (en) | 2019-03-15 | 2019-03-15 | A kind of rubber diaphragm for control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209622105U true CN209622105U (en) | 2019-11-12 |
Family
ID=68456916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920331464.9U Active CN209622105U (en) | 2019-03-15 | 2019-03-15 | A kind of rubber diaphragm for control valve |
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| Country | Link |
|---|---|
| CN (1) | CN209622105U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008468A (en) * | 2021-03-03 | 2021-06-22 | 浙江世鼎橡胶工业有限公司 | Rubber diaphragm leakproofness detection device |
-
2019
- 2019-03-15 CN CN201920331464.9U patent/CN209622105U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008468A (en) * | 2021-03-03 | 2021-06-22 | 浙江世鼎橡胶工业有限公司 | Rubber diaphragm leakproofness detection device |
| CN113008468B (en) * | 2021-03-03 | 2023-10-13 | 浙江世鼎橡胶工业有限公司 | Rubber diaphragm tightness detection device |
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