CN209084085U - Rubber diaphragm check valve - Google Patents
Rubber diaphragm check valve Download PDFInfo
- Publication number
- CN209084085U CN209084085U CN201821745355.3U CN201821745355U CN209084085U CN 209084085 U CN209084085 U CN 209084085U CN 201821745355 U CN201821745355 U CN 201821745355U CN 209084085 U CN209084085 U CN 209084085U
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- rubber diaphragm
- water hole
- circular cone
- hole plate
- valve body
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Abstract
The utility model provides a kind of rubber diaphragm check valve, and including hollow unidirectional valve body (2), the right end of the unidirectional valve body (2) is fluid inlet end, and left end is fluid outlet；Circular cone water hole plate (3) are fixedly mounted in the inside of the unidirectional valve body (2), rubber diaphragm (4) are set in the left end of the circular cone water hole plate (3)；The edge of the rubber diaphragm (4) and the inner wall of the unidirectional valve body (2) have gap；The rubber diaphragm (4) and the circular cone water hole plate (3) are secured together using fixing bolt.Advantage are as follows: the features such as a kind of rubber diaphragm check valve provided by the utility model has simple structure, and requirement on machining accuracy is low, and energy loss is small, and noise is small, and low cost, failure rate is low, non-maintaining, the service life is long.
Description
Technical field
The utility model relates to a kind of check valves, and in particular to a kind of rubber diaphragm check valve.
Background technique
Check valve is that fluid can only be flowed along water inlet, the valve member that water outlet medium can not but flow back.Check valve is as one
Kind directional control valve is widely used in industrial production.
Check valve used in engineering at present, valve body and valve plate all use metallic hard material substantially, to guarantee unidirectional mistake
Stream, reversed cutoff function, requirement on machining accuracy is higher, when under high pressure or having water hammering, when non-return valve operational, and valve plate
It is strong with valve body impact, intense noise is not only generated, also easily causes valve plate cracking damage, the component function moment such as fall off complete
It loses, it is most likely that form chain destruction.In addition it is also easy to stuck by impurities in water circumvolution, leads to failure of check valve.
Utility model content
In view of the defects existing in the prior art, the utility model provides a kind of rubber diaphragm check valve, can effectively solve
State problem.
The technical solution adopted in the utility model is as follows:
The utility model provides a kind of rubber diaphragm check valve, including hollow unidirectional valve body (2), the check valve sheet
The right end of body (2) is fluid inlet end, and left end is fluid outlet；Circle is fixedly mounted in the inside of the unidirectional valve body (2)
It bores water hole plate (3), the circular cone water hole plate (3) is rigid plate, the axis of cone of the circular cone water hole plate (3) and described unidirectional
The central axis of valve body (2) is arranged, the inner wall at the edge of the circular cone water hole plate (3) and the unidirectional valve body (2)
It is sealedly and fixedly connected；The cone of the circular cone water hole plate (3) is arranged towards fluid outlet；The circular cone water hole plate (3)
Surface be provided with multiple water holes；
In the left end of the circular cone water hole plate (3), rubber diaphragm (4) are set；The edge of the rubber diaphragm (4) and institute
The inner wall for stating unidirectional valve body (2) has gap；The center of the rubber diaphragm (4) offers pilot hole；Fixing bolt (5)
The pilot hole that one end sequentially passes through the pilot hole of the rubber diaphragm (4) and the cone of the circular cone water hole plate (3) is opened up
Afterwards, it is fixed using nut check, and then the rubber diaphragm (4) and the circular cone water hole plate (3) is secured together；Work as stream
When body flows from right to left side, the rubber diaphragm (4) is bending to the left under differential pressure action, to make the rubber diaphragm
(4) water hole of the main part far from the circular cone water hole plate (3), the water hole are not closed out；When fluid is from left end
When flowing to right end, the rubber diaphragm (4) is bending to the right under differential pressure action, and is closely covered on the circular cone water hole plate
(3) left side, and then the water hole is closed.
Preferably, the unidirectional valve body (2) is steel pipe.
Preferably, the unidirectional valve body (2) is external thread sleeve.
Preferably, the circular cone water hole plate (3) is steel plate.
Preferably, the edge of the circular cone water hole plate (3) and the inner wall of the unidirectional valve body (2) are welded and fixed.
Rubber diaphragm check valve provided by the utility model has the advantage that
A kind of rubber diaphragm check valve provided by the utility model has simple structure, and requirement on machining accuracy is low, energy damage
Lose small, noise is small, and low cost, failure rate is low, it is non-maintaining, the service life is long the features such as.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of the first mounting means of rubber diaphragm check valve provided by the utility model；
Fig. 2 is the sectional view of the first mounting means of rubber diaphragm check valve provided by the utility model；
Fig. 3 is the schematic diagram of the section structure of second of mounting means of rubber diaphragm check valve provided by the utility model；
Fig. 4 is the sectional view of second of mounting means of rubber diaphragm check valve provided by the utility model；
Wherein:
1, outer tube is assembled；2, unidirectional valve body；3, circular cone water hole plate；4, rubber diaphragm；5, fixing bolt.
Specific embodiment
The technical issues of in order to keep the utility model solved, technical solution and beneficial effect are more clearly understood, below
In conjunction with accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific implementation described herein
Example only to explain the utility model, is not used to limit the utility model.
In the description of the present application, it is to be understood that the instruction such as term " on ", "lower", "front", "rear", "left", "right"
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the application and simplification retouch
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it should not be understood as the limitation to the application.
The utility model provides a kind of rubber diaphragm check valve, can be widely applied under room temperature, pressure is no more than 3Mpa
Water, gas, in oil pipe line or equipment.With reference to attached drawing, rubber diaphragm check valve includes hollow unidirectional valve body 2, check valve sheet
Body 2 can be steel pipe, to be easy to assembly, check valve ontology 2 can be made using external thread sleeve, external thread sleeve can be standard
Pipe screw thread is used for general pipeline, is also possible to other types screw thread, such as mark screw thread can in order to reduce housing thickness of pipe wall
For being used in equipment.It, can be there are two types of example be used, such as Fig. 1-2 institute when unidirectional valve body uses external thread sleeve
Show, be a kind of assembling relationship figure of external thread sleeve and internal screw thread outer tube 1, in this example, unidirectional valve body is assemblied in interior
The end of thread jacket pipe 1, for example, when drainpipe of the internal screw thread outer tube 1 as water tank, at the end of interior thread jacket pipe 1
Check valve provided by the present application is installed in face, realizes that water tank can only drain, forbid function into water.It as shown in Figure 3-4, is external screw thread
Another assembling relationship figure of casing and internal screw thread outer tube 1, in this example, external thread sleeve are assemblied in adjacent two
Between thread jacket pipe 1, two internal screw thread outer tubes 1 are connected by check valve.It should be noted that two kinds of Fig. 1 and Fig. 3 fill
With mode, only a kind of specific example of the application, it is not used to limit the application.Due to provided by the present application unidirectional
Valve body uses external thread sleeve, is connect using thread connecting mode with other pipe fittings, therefore, has and facilitates the excellent of assembly and disassembly maintenance
Point.
With reference to Fig. 1 and Fig. 3, the right end of unidirectional valve body 2 is fluid inlet end, and left end is fluid outlet；In check valve
Circular cone water hole plate 3 is fixedly mounted in the inside of ontology 2, and circular cone water hole plate 3 is rigid plate, for example, circular cone water hole plate 3 is steel
Plate.
The central axis of the axis of cone of circular cone water hole plate 3 and unidirectional valve body 2 is arranged, the edge of circular cone water hole plate 3
It is sealedly and fixedly connected with the inner wall of unidirectional valve body 2；For example, the inner wall of the edge of circular cone water hole plate 3 and unidirectional valve body 2 welds
Connect fixation.
The cone of circular cone water hole plate 3 is arranged towards fluid outlet, is arranged in the figure towards left end, it may be assumed that cone is located at
Bore the left side at bottom；The surface of circular cone water hole plate 3 is provided with multiple water holes；
In the left end of circular cone water hole plate 3, rubber diaphragm 4 is set；The inner wall at the edge of rubber diaphragm 4 and unidirectional valve body 2
It with gap, be bent rubber diaphragm can freely to the left or to the right；The center of rubber diaphragm 4 offers pilot hole；Fixing bolt 5
One end pilot hole and circular cone water hole plate 3 for sequentially passing through rubber diaphragm 4 the pilot hole that is opened up of cone after, using nut
It is locked, and then rubber diaphragm 4 and circular cone water hole plate 3 is secured together；, as application example, to work as stream as inlet valve
When body flows from right to left side, the pressure on the left side is less than right side, and therefore, rubber diaphragm 4 is bending to the left under differential pressure action, from
And making the main part of rubber diaphragm 4 far from the water hole of circular cone water hole plate 3, water hole is not closed out, at this point, water flow passes through
After the water hole of circular cone water hole plate 3, flowed out to the left from the gap between 2 inner wall of rubber diaphragm and unidirectional valve body, realize into
The function of water；When fluid is flowed from left end to right end, left pressure is greater than right side, at this point, rubber diaphragm 4 is under differential pressure action
It is bending to the right, and it is closely covered on the left side of circular cone water hole plate 3, and then water hole is closed, therefore, water flow cannot flow at this time
It is dynamic, realize one way stop peturn valve function.
In specific design, need to consider following design factor:
(1) aperture of circular cone water hole plate 3 is associated with used rubber diaphragm thickness, needs to guarantee
Circular cone water hole plate is not torn under maximum working pressure, and can reduce orifice plate stress deformation.Circular cone
The circular conical surface of water hole plate should be suitable for rubber diaphragm plane institute angle, generally 0-15 degree.
(2) diameter of rubber diaphragm 4 can must cover completely the water hole of circular cone water hole plate 3, and be greater than water hole
2 millimeters of outer rim or more.
(3) rubber material of rubber diaphragm should select in hard neoprene or nitrile rubber, can proof strength require and use up
It can be able to maintain softness, to reduce overcurrent resistance.
The utility model provides a kind of rubber diaphragm check valve, has following design feature:
(1) the utility model uses the plastic deformation ability of rubber diaphragm, realizes under the action of buffer brake, rubber
Diaphragm is fitted closely with circular cone water hole plate, the reliable reverse flow for blocking water flow.Due to being flexible closure, reduce unidirectional
The requirement on machining accuracy of each component of valve, can significantly reduce the processing cost of check valve.In addition, use valve plate instead rubber diaphragm, from
Fundamentally eliminate the generation of rigid collision.
(2) circular cone water hole plate can improve passability when fluid forward flow in cone, reduce flow resistance.?
When reversed cut-off, rubber diaphragm is fitted tightly over the surface of circular cone water hole plate, generates 3 D deformation, stores bullet for positive open
Property potential energy.When forward conduction, rubber diaphragm can produce biggish Free Transform, this rubber membrane check valve is made to have biggish overcurrent
Ability, i.e. drag losses are smaller.
(3) since this rubber diaphragm check valve is coaxial line symmetrical structure, in addition to the flexible deformation of rubber diaphragm, without motion
Component, and agravic influence, so to installation without locality requirement.
(4) rubber diaphragm one-way valve structures are optimized, is connect using thread connecting mode with outer tube, greatly
Reduce the size and weight of device, at the same also processing technology is simplified to it is minimum, therefore, compared with common check valve, significantly
Reduce installation cost.
Therefore, a kind of rubber diaphragm check valve provided by the utility model has simple structure, and requirement on machining accuracy is low,
The features such as energy loss is small, and noise is small, and low cost, failure rate is low, non-maintaining, the service life is long.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching should also regard the protection scope of the utility model.
Claims (5)
1. a kind of rubber diaphragm check valve, which is characterized in that including hollow unidirectional valve body (2), the unidirectional valve body (2)
Right end be fluid inlet end, left end is fluid outlet；Circular cone is fixedly mounted in the inside of the unidirectional valve body (2) and crosses water
Orifice plate (3), the circular cone water hole plate (3) are rigid plate, the axis of cone of the circular cone water hole plate (3) and the unidirectional valve body
(2) the inner wall sealing of central axis setting, the edge of the circular cone water hole plate (3) and the unidirectional valve body (2) is solid
Fixed connection；The cone of the circular cone water hole plate (3) is arranged towards fluid outlet；The surface of the circular cone water hole plate (3)
It is provided with multiple water holes；
In the left end of the circular cone water hole plate (3), rubber diaphragm (4) are set；The edge and the list of the rubber diaphragm (4)
There is gap to the inner wall of valve body (2)；The center of the rubber diaphragm (4) offers pilot hole；One end of fixing bolt (5)
After the pilot hole that the cone of the pilot hole and the circular cone water hole plate (3) that sequentially pass through the rubber diaphragm (4) is opened up, adopt
It is fixed with nut check, and then the rubber diaphragm (4) and the circular cone water hole plate (3) is secured together；When fluid from
When right end is flowed to left end, the rubber diaphragm (4) is bending to the left under differential pressure action, to make the rubber diaphragm (4)
Water hole of the main part far from the circular cone water hole plate (3), the water hole are not closed out；When fluid is from left end to right end
When flowing, the rubber diaphragm (4) is bending to the right under differential pressure action, and is closely covered on the circular cone water hole plate (3)
Left side, and then the water hole is closed.
2. rubber diaphragm check valve according to claim 1, which is characterized in that the unidirectional valve body (2) is steel pipe.
3. rubber diaphragm check valve according to claim 1, which is characterized in that the unidirectional valve body (2) is external screw thread
Casing.
4. rubber diaphragm check valve according to claim 1, which is characterized in that the circular cone water hole plate (3) is steel plate.
5. rubber diaphragm check valve according to claim 1, which is characterized in that the edge of the circular cone water hole plate (3)
It is welded and fixed with the inner wall of the unidirectional valve body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821745355.3U CN209084085U (en) | 2018-10-26 | 2018-10-26 | Rubber diaphragm check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821745355.3U CN209084085U (en) | 2018-10-26 | 2018-10-26 | Rubber diaphragm check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209084085U true CN209084085U (en) | 2019-07-09 |
Family
ID=67120844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821745355.3U Active CN209084085U (en) | 2018-10-26 | 2018-10-26 | Rubber diaphragm check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209084085U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410537A (en) * | 2019-07-24 | 2019-11-05 | 常州威图流体科技有限公司 | A kind of one-way valve structures |
| CN117431893A (en) * | 2023-11-29 | 2024-01-23 | 衡水道一工程材料有限公司 | Steaming-resistant float and use method thereof |
-
2018
- 2018-10-26 CN CN201821745355.3U patent/CN209084085U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410537A (en) * | 2019-07-24 | 2019-11-05 | 常州威图流体科技有限公司 | A kind of one-way valve structures |
| CN110410537B (en) * | 2019-07-24 | 2024-01-26 | 常州威图流体科技有限公司 | One-way valve structure |
| CN117431893A (en) * | 2023-11-29 | 2024-01-23 | 衡水道一工程材料有限公司 | Steaming-resistant float and use method thereof |
| CN117431893B (en) * | 2023-11-29 | 2024-05-03 | 新疆兵团勘测设计院集团股份有限公司 | Steaming-resistant float and use method thereof |
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| GR01 | Patent grant |