CN219587737U - Diaphragm assembly for diaphragm pump and diaphragm pump - Google Patents
Diaphragm assembly for diaphragm pump and diaphragm pump Download PDFInfo
- Publication number
- CN219587737U CN219587737U CN202320645260.9U CN202320645260U CN219587737U CN 219587737 U CN219587737 U CN 219587737U CN 202320645260 U CN202320645260 U CN 202320645260U CN 219587737 U CN219587737 U CN 219587737U
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- diaphragm
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- diaphragm assembly
- concave part
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- 230000007423 decrease Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000005489 elastic deformation Effects 0.000 abstract description 3
- 230000000994 depressogenic effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004023 plastic welding Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
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Abstract
The utility model discloses a diaphragm assembly for a diaphragm pump and the diaphragm pump, comprising a diaphragm main body and a connecting piece embedded in the diaphragm main body; the diaphragm body includes: a protruding portion protruding outward from one end face of the diaphragm body; a concave part, the other end surface of the diaphragm main body is concavely arranged inwards; and the fixing part is arranged at the outer edge of the concave part and is used for fixing the diaphragm main body. According to the utility model, the concave part is concavely arranged inwards from the other end face of the diaphragm main body, so that the torsion force applied to the diaphragm assembly in the assembly process is balanced by the concave part; when the diaphragm assembly works, the diaphragm assembly reciprocates under the action of the tensile force, so that the acting force received by the concave part is only the tensile force, the elastic deformation quantity generated by the concave part is smaller, the acting force received by the concave part is reduced, fatigue caused by the fact that the diaphragm assembly continuously receives larger acting force is avoided, the elastic force of the diaphragm assembly is gradually reduced, and the service life of the diaphragm assembly is prolonged.
Description
Technical Field
The present utility model relates to the field of diaphragm pumps, and more particularly, to a diaphragm assembly for a diaphragm pump and a diaphragm pump.
Background
The diaphragm pump has been widely used in the industries of instruments, medical care, scientific research, fluid sampling, etc. because of the characteristics of small volume, high reliability, strong continuous running performance, etc. The diaphragm is a component of the diaphragm pump mainly generating positive and negative pressure, and the positive and negative pressure is generated by changing the volume of a diaphragm cavity through self deformation. The thickness of the diaphragm can affect the load on the motor and thus the efficiency of the diaphragm pump.
Most of the diaphragm sheets in the prior art are made of metal inserts which are wrapped with a layer of rubber, and the diaphragm sheets are in plane or convex patterns. However, the diaphragm with such a structure receives a torsion force in the assembling process, and the diaphragm will not receive a larger force when not working, and receives a larger force when the diaphragm reciprocates, so that the diaphragm is easy to fatigue, resulting in a short service life of the diaphragm.
Therefore, how to solve the problem that the diaphragm is stressed too much during the reciprocating motion becomes a technical problem to be solved in the field.
Disclosure of Invention
It is an object of the present utility model to provide a diaphragm assembly for a diaphragm pump that solves the technical problem of excessive force on the diaphragm during reciprocation in the prior art.
It is another object of the present utility model to provide a diaphragm pump.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a diaphragm assembly for a diaphragm pump comprising a diaphragm body and a connector embedded within the diaphragm body; the diaphragm body includes: a protruding portion protruding outward from one end face of the diaphragm body, the connecting piece being embedded in the protruding portion;
a recessed portion recessed inward from the other end surface of the diaphragm body;
and the fixing part is arranged at the outer edge of the concave part and is used for fixing the diaphragm main body.
Optionally, the maximum depth of the recess is half of the movement path of the recess.
Alternatively, the recess portion is recessed gradually inward from an inner edge of the fixing portion toward a central axis direction of the diaphragm body.
Optionally, the concave portion and the fixing portion are concentric circles, and the ratio of the diameter of the concave portion to the diameter of the fixing portion is 3:4.
Optionally, the elastic coefficient of the concave portion is smaller than the elastic coefficient of the fixing portion.
Optionally, the concave shape of the concave part is arc-shaped.
Optionally, the outer diameter of the protrusion gradually decreases in a direction away from the septum body and then remains unchanged.
Optionally, the ratio of the thickness of the protrusion to the maximum thickness of the recess is 10:1.
Optionally, the protruding part is provided with a connecting hole, and the connecting piece is embedded in the connecting hole.
It is a further object of the present utility model to provide a diaphragm pump comprising a diaphragm assembly for a diaphragm pump as described in any of the above.
The utility model has the beneficial effects that:
according to the utility model, the concave part is concavely arranged inwards from the other end face of the diaphragm main body, so that the torsion force applied to the diaphragm assembly in the assembly process is balanced by the concave part; after the diaphragm assembly is assembled, the recess remains partially in an inelastic deformed state. The diaphragm assembly reciprocates under the effect of tensile force when working, makes the effort that the depressed part received only be the tensile force, and then makes the elastic deformation volume that the depressed part produced less, has reduced the effort that the depressed part received, has avoided the diaphragm assembly to continuously receive great effort and lead to tiredly, makes the elasticity of diaphragm assembly reduce gradually, has increased the life of diaphragm assembly, has satisfied customer's demand, has reduced the loss.
Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.
FIG. 1 is a block diagram of a diaphragm assembly of the present utility model;
fig. 2 is a cross-sectional view of the diaphragm assembly of fig. 1 in accordance with the present utility model.
The figures are marked as follows: 1. a diaphragm body; 11. a protruding portion; 111. a connection hole; 12. a recessed portion; 13. a fixing part; 2. and a connecting piece.
Detailed Description
Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
As shown in fig. 1 to 2, an embodiment of the present utility model provides a diaphragm assembly for a diaphragm pump, the diaphragm assembly including a diaphragm body 1 and a connection member 2 embedded in the diaphragm body 1. The connector 2 is used to secure the diaphragm assembly to the diaphragm pump.
The diaphragm body 1 includes a protruding portion 11, a recessed portion 12, and a fixing portion 13.
The protruding portion 11 protrudes outward from one end face of the diaphragm body 1. The connector 2 is embedded on the protruding portion 11. The protruding portion 11 may have a cylindrical, conical, or the like shape. The connecting piece 2 and the protruding part 11 can be connected together by injection molding or plastic welding.
The recess 12 is provided recessed inward from the other end face of the diaphragm body 1.
The fixing portion 13 is provided at the outer edge of the recess portion 12, the fixing portion 13 is for fixing the diaphragm body 1, and the fixing portion 13 is for being pressed by the upper and lower end caps of the diaphragm pump to fix the diaphragm body 1 in the upper and lower end caps. The fixing portion 13 protrudes outward from the other end face of the diaphragm body 1.
The recess 12 and the fixing portion 13 may be connected together by an integral molding.
The concave part 12 is concavely arranged inwards from the other end face of the diaphragm main body 1, so that the torsion force applied to the diaphragm assembly in the assembly process is balanced by the concave part 12; after the diaphragm assembly is assembled, the recess 12 is still partially in an inelastic deformed state. The diaphragm assembly reciprocates under the effect of tensile force when working, makes the effort that the depressed part 12 received only be the tensile force, and then makes the elastic deformation volume that the depressed part 12 produced less, has reduced the effort that the depressed part 12 receives, has avoided the diaphragm assembly to continuously receive great effort and lead to tiredly, makes the elasticity of diaphragm assembly reduce gradually, has increased the life of diaphragm assembly, has satisfied customer's demand, has reduced the loss.
In one embodiment of the diaphragm assembly of the present utility model, the recess 12 is rounded so that the recess 12 has no relative sliding friction when subjected to forces during operation, while also increasing the tensile and fatigue properties of the recess 12.
The recess 12 may have any other shape such as an oval shape, a square shape, or a rectangular shape.
It should be noted that the maximum depth of the recess 12 may be less than half the movement path of the recess 12. When the concave portion 12 moves to the farthest position, the deformation amount of the concave portion 12 generated at this time is larger than the deformation amount of the concave portion 12 at the initial position.
The maximum depth of the recess 12 may also be greater than half the travel of the recess 12. When the recess 12 is moved to the farthest position, no deformation amount is generated, or a partial region generates a deformation amount.
Further, the fixing portion 13 is provided to protrude from the other end face of the diaphragm body 1 to both sides of the other end face.
Optionally, the thickness of the recess 12 is smaller than the thickness of the fixing portion 13.
Specifically, the ratio of the minimum thickness of the concave portion 12 to the thickness of the fixed portion 13 is 1:2.
According to the utility model, the fixing part 13 is arranged at the outer edge of the concave part 12, the thickness of the concave part 12 is smaller than that of the fixing part 13, the ratio of the minimum thickness of the concave part 12 to the thickness of the fixing part 13 is 1:2, and the fixing part 13 is in an elliptical structure, so that the sealing effect of the fixing part 13 is improved, and the diaphragm assembly is prevented from being extruded and damaged, so that the diaphragm pump is repeatedly assembled and disassembled.
Optionally, the fixing portion 13 has an oval structure, so that the fixing portion 13 expands and extends to two sides to be pressed when being pressed and fixed, and gradually wraps the pressed object, thereby further increasing the sealing performance of the diaphragm body 1.
In one embodiment of the diaphragm assembly of the present utility model, the recess 12 and the fixing portion 13 are concentric circles, and the ratio of the diameter of the recess 12 to the diameter of the fixing portion 13 is 3:4.
The present utility model is manufactured by setting the ratio of the diameter of the concave portion 12 to the diameter of the fixing portion 13 to 3:4, the fixing part 13 has a certain plane length, so that the concave part 12 is prevented from being damaged due to extrusion of the concave part 12 when the diaphragm assembly is extruded by the upper end cover and the lower end cover of the diaphragm pump, and the service life of the diaphragm assembly is further prolonged.
It should be noted that the ratio of the diameter of the concave portion 12 to the diameter of the fixing portion 13 may be any other condition as long as it is ensured that the diaphragm assembly is not damaged.
Optionally, the elastic coefficient of the recess 12 is smaller than that of the fixing portion 13, so that the structural rigidity of the fixing portion 13 is increased by making the elastic coefficient of the recess 12 smaller than that of the fixing portion 13, and further, the diaphragm assembly is prevented from being damaged by being extruded.
In one embodiment, the recess 12 is recessed inwardly from the inner edge of the fixing portion 13, and then extends horizontally toward the central axis of the diaphragm body 1.
Alternatively, the concave shape of the concave portion 12 is a pleated shape.
In another embodiment, the recess 12 is recessed gradually inward from the inner edge of the fixing portion 13 toward the central axis of the diaphragm body 1.
According to the utility model, the concave part 12 is gradually and inwards concavely arranged from the inner edge of the fixing part 13 towards the central axis direction of the diaphragm main body 1, so that the extension of the concave part 12 is increased, the concave part 12 is still in a natural state, and the deformation amount generated by the concave part 12 is smaller when the diaphragm assembly reciprocates, so that the diaphragm assembly is further prevented from being fatigued due to continuous use, and the service life of the diaphragm assembly is further prolonged.
In a specific embodiment, the recess 12 is formed to be gradually smooth and recessed inward from the inner edge of the fixing portion 13 toward the central axis of the diaphragm body 1.
Alternatively, the concave shape of the concave portion 12 is arc-shaped.
In another embodiment, the recess 12 is formed by repeatedly bending and recessing the inner edge of the fixing portion 13 gradually inward toward the central axis of the diaphragm body 1.
The technical scheme adopted by the utility model is as follows: the recess 12 is formed smoothly inward from the inner edge of the fixing portion 13 toward the central axis of the diaphragm body 1.
Preferably, the maximum depth of the recess 12 is half the travel of the recess 12.
The movement path of the recess 12 means: the recess 12 moves from the initial position to a position where the force is zero.
It should be explained that the connecting piece 2 drives the protruding portion 11 and the recessed portion 12 to reciprocate when receiving the force. When the force applied to the concave portion 12 is zero, the displacement of the concave portion 12 is the farthest position. When the recess 12 moves to the nearest position, the recess 12 resumes its deformation.
Specifically, the deformation amount of the concave portion 12 when moved to the farthest position is the same as the deformation amount when the concave portion 12 is located at the initial position.
According to the utility model, the maximum depth of the recess 12 is half of the movement path of the recess 12, so that the recess 12 is displaced under the action of the action force in the reciprocating movement process, but the deformation amount of the recess 12 is the same as that of the recess 12 in the initial position when the recess 12 moves from the initial position to the farthest position, so that the deformation amount of the recess 12 is not increased when the recess 12 moves from the initial position to the farthest position, and the service life of the recess 12 is further prolonged.
In one embodiment of the diaphragm assembly of the present utility model, the outer diameter of the projection 11 is gradually decreased in a direction away from the diaphragm body 1, and then is maintained.
According to the utility model, the outer diameter of the protruding part 11 is gradually decreased along the direction away from the diaphragm main body 1, and then the protruding part 11 is kept unchanged, so that the protruding part 11 has a certain extension length, and the stability of embedding the connecting piece 2 in the protruding part 11 is ensured.
Alternatively, the ratio of the thickness of the protruding portion 11 to the maximum thickness of the recessed portion 12 is 10:1.
Optionally, the protruding portion 11 has a connection hole 111 thereon, and the connection member 2 is inserted into the connection hole 111.
According to the utility model, the ratio of the thickness of the protruding part 11 to the maximum thickness of the recessed part 12 is set to be 10:1, and the connecting hole 111 is formed in the protruding part 11, so that the connecting piece 2 is embedded into the connecting hole 111, and the stability of mounting the diaphragm assembly on the diaphragm pump is ensured.
The connector 2 comprises an embedded end and a connecting end. The embedded end is embedded into the connecting hole 111, the periphery of the connecting end is provided with a thread structure, and the connecting end is used for being connected with the diaphragm pump to fix the diaphragm assembly on the diaphragm pump.
The embedded end is provided with a raised head protruding to the periphery at one end near the concave part 12, the connection hole 111 is coated on the raised head, and the connection hole and the raised head of the embedded end form an integral structure in a vulcanization mode.
In the present utility model, the separator body 1 is made of rubber.
It is a further object of the present utility model to provide a diaphragm pump comprising any of the above-described diaphragm assemblies for a diaphragm pump.
While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.
Claims (10)
1. A diaphragm assembly for a diaphragm pump comprising a diaphragm body and a connector embedded within the diaphragm body; the diaphragm body includes: a protruding portion protruding outward from one end face of the diaphragm body, the connecting piece being embedded in the protruding portion;
a recessed portion recessed inward from the other end surface of the diaphragm body;
and the fixing part is arranged at the outer edge of the concave part and is used for fixing the diaphragm main body.
2. A diaphragm assembly for a diaphragm pump according to claim 1, wherein the maximum depth of the recess is half the path of movement of the recess.
3. A diaphragm assembly for a diaphragm pump according to claim 1, wherein the recess portion is recessed gradually inward from an inner edge of the fixing portion toward a central axis direction of the diaphragm body.
4. The diaphragm assembly for a diaphragm pump of claim 1, wherein the recess and the fixture are concentric circles, and the ratio of the diameter of the recess to the diameter of the fixture is 3:4.
5. The diaphragm assembly for a diaphragm pump of claim 1, wherein the spring rate of the recess is less than the spring rate of the retainer.
6. The diaphragm assembly for a diaphragm pump of claim 1, wherein the recess is arcuate in shape.
7. A diaphragm assembly for a diaphragm pump according to any of claims 1-6, wherein the outer diameter of the projection gradually decreases in a direction away from the diaphragm body and then remains unchanged.
8. The diaphragm assembly for a diaphragm pump of claim 7, wherein the ratio of the thickness of the protrusion to the maximum thickness of the recess is 10:1.
9. A diaphragm assembly for a diaphragm pump according to claim 8, wherein said projection has a connection hole therein, said connector being inserted into said connection hole.
10. A diaphragm pump comprising a diaphragm assembly for a diaphragm pump according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320645260.9U CN219587737U (en) | 2023-03-28 | 2023-03-28 | Diaphragm assembly for diaphragm pump and diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320645260.9U CN219587737U (en) | 2023-03-28 | 2023-03-28 | Diaphragm assembly for diaphragm pump and diaphragm pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219587737U true CN219587737U (en) | 2023-08-25 |
Family
ID=87689549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320645260.9U Active CN219587737U (en) | 2023-03-28 | 2023-03-28 | Diaphragm assembly for diaphragm pump and diaphragm pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219587737U (en) |
-
2023
- 2023-03-28 CN CN202320645260.9U patent/CN219587737U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240105 Address after: Longxing village five 315111 villages and towns in Zhejiang city of Ningbo province Yinzhou District Patentee after: Ningbo Yingkete Fluid Control Technology Co.,Ltd. Address before: 201203 unit 03, 8th floor, No. 6, Lane 2889, Jinke Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai Patentee before: Ningbo yingkete Precision Machinery Co.,Ltd. Shanghai Branch |
|
| TR01 | Transfer of patent right |