CN201225269Y - Rubber diaphragm for diaphragm pump - Google Patents
Rubber diaphragm for diaphragm pump Download PDFInfo
- Publication number
- CN201225269Y CN201225269Y CNU2008200750436U CN200820075043U CN201225269Y CN 201225269 Y CN201225269 Y CN 201225269Y CN U2008200750436 U CNU2008200750436 U CN U2008200750436U CN 200820075043 U CN200820075043 U CN 200820075043U CN 201225269 Y CN201225269 Y CN 201225269Y
- Authority
- CN
- China
- Prior art keywords
- diaphragm
- internal thread
- metal internal
- thread connecting
- connecting body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229920001971 elastomer Polymers 0.000 title claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000012528 membrane Substances 0.000 claims abstract description 14
- 239000000806 elastomer Substances 0.000 claims description 27
- 230000010354 integration Effects 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The utility model relates to a rubber diaphragm for a membrane pump, which comprises a diaphragm body and a connecting structure axial with the diaphragm body and connected with a diaphragm joint lever, wherein the connecting structure is a metal internal thread connecting body which is fixedly arranged on a connecting convex platform integrally made together with the diaphragm body. The utility model has simple structure, easy processing and low cost, can effectively avoid the problem that the rubber diaphragm is damaged by the stress concentration and the common influence of stability moment and variable torque, prolongs the service life of the rubber diaphragm, and conveniently and rapidly replaces the rubber diaphragm.
Description
Technical field
The utility model belongs to the membrane pump field, especially a kind of membrane pump elastomer diaphragm.
Background technique
Membrane pump is to utilize diaphragm to move reciprocatingly in diaphragm chamber, realize transmission medium is sucked and discharge function by the volume that changes active chamber in the pump chamber, because of its good airproof performance, the suction nozzle height is widely used in all trades and professions and uses as liquid, gas transfer pump or vacuum pump.At present, the structure of elastomer diaphragm is: be made of membrane body body and the attachment hole that is positioned at diaphragm body central position, the diaphragm connecting rod free end of reciprocating pump is made as the ladder-type structure, the end is shaped on outside thread and its diameter of axle less than the connecting rod shank aperture, and interlinking lever end passes the attachment hole of diaphragm and with nut pressing diaphragm fastened and is installed on diaphragm connecting rod free end.Elastomer diaphragm produces plastic deformation because of pressurized, its with the periphery of connecting rod fixed installation position on have the stress concentration phenomenon, when elastomer diaphragm moves reciprocatingly in pump chamber, this position also can be subjected to the effect of alternation moment, because the diaphragm body is thinner, very easily cause damage at the stress concentrated position, thereby cause the diaphragm pump can't proper functioning.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and the membrane pump elastomer diaphragm that a kind of design science is reasonable and can effectively avoid shearing force to damage is provided.
The utility model solves its technical problem and is achieved through the following technical solutions:
A kind of membrane pump elastomer diaphragm, by diaphragm body and constituting in the coaxial made linkage structure that is connected with the diaphragm connecting rod of diaphragm body, it is characterized in that: this linkage structure is a metal internal thread connecting body, and this metal internal thread connecting body is packed in and being connected on the boss that the diaphragm body is made into integration.
And described metal internal thread connecting body is a blind hole metal internal thread connecting body.
And, described metal internal thread connecting body with the outside ring wall that is connected the boss Joint on be shaped on the ring wall terrace with edge.
Advantage of the present utility model and beneficial effect are:
1. this membrane pump adopts the metal internal thread connecting body to form with the boss one cast that is connected of elastomer diaphragm with elastomer diaphragm, this elastomer diaphragm screws the free end that is installed on the diaphragm connecting rod, therefore can not produce plastic deformation and stress concentration phenomenon, effectively avoid the elastomer diaphragm stress to concentrate the damage that causes with the common influence of alternation moment, prolonged the working life of elastomer diaphragm.
2. this membrane pump is by realizing that with the affixed metal internal thread connecting body of boss one cast that is connected of elastomer diaphragm it is efficient and convenient therefore to change elastomer diaphragm with the installation of elastomer diaphragm and connecting rod.
3. the utility model is simple in structure, and easy processing is with low cost, can effectively avoid the elastomer diaphragm stress to concentrate and the common influence of alternation moment and cause the damage problem, prolonged the working life of elastomer diaphragm, and it is efficient and convenient to change elastomer diaphragm.
Description of drawings
Fig. 1 is a plan view of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to cross-sectional view.
Embodiment
The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
A kind of membrane pump elastomer diaphragm, on diaphragm body 1, be shaped on one and be connected boss 2 with its coaxial one, be connected the boss one with this and be cast with a coaxial and metal internal thread connecting body 3 that be connected with the diaphragm connecting rod, elastomer diaphragm can be screwed the free end that is installed on the diaphragm connecting rod by this metal internal thread connecting body.The metal internal thread connecting body is generally made by copper material, also can select for use stainless steel and similar material to make.
Because of there not being the structure that pressing diaphragm is fastened installation with nut, so this elastomer diaphragm can not produce plastic deformation because of pressurized, it is fixedly mounting the corresponding elimination of stress concentration phenomenon that exists on the periphery of position with connecting rod, and then avoided stress to concentrate the elastomer diaphragm that causes with the common influence of alternation moment to damage problem, prolong the working life of elastomer diaphragm, demonstrated fully the advance of this elastomer diaphragm.
In the present embodiment, the metal internal thread connecting body is made blind hole metal internal thread connecting body, and in order to make the metal connector blind hole and to be connected boss and to be connected firmly, can the metal internal thread connecting body with the outside ring wall that is connected the boss Joint on make ring wall terrace with edge (the ring wall terrace with edge of present embodiment is three, among the figure all label not).
Claims (3)
1. membrane pump elastomer diaphragm, by diaphragm body and constituting in the coaxial made linkage structure that is connected with the diaphragm connecting rod of diaphragm body, it is characterized in that: this linkage structure is a metal internal thread connecting body, and this metal internal thread connecting body is packed in and being connected on the boss that the diaphragm body is made into integration.
2. membrane pump elastomer diaphragm according to claim 1 is characterized in that: described metal internal thread connecting body is a blind hole metal internal thread connecting body.
3. membrane pump elastomer diaphragm according to claim 1 and 2 is characterized in that: described metal internal thread connecting body with the outside ring wall that is connected the boss Joint on be shaped on the ring wall terrace with edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200750436U CN201225269Y (en) | 2008-06-16 | 2008-06-16 | Rubber diaphragm for diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200750436U CN201225269Y (en) | 2008-06-16 | 2008-06-16 | Rubber diaphragm for diaphragm pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201225269Y true CN201225269Y (en) | 2009-04-22 |
Family
ID=40598155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200750436U Expired - Lifetime CN201225269Y (en) | 2008-06-16 | 2008-06-16 | Rubber diaphragm for diaphragm pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201225269Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112135971A (en) * | 2019-07-29 | 2020-12-25 | 深圳市大疆创新科技有限公司 | Diaphragm pump |
-
2008
- 2008-06-16 CN CNU2008200750436U patent/CN201225269Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112135971A (en) * | 2019-07-29 | 2020-12-25 | 深圳市大疆创新科技有限公司 | Diaphragm pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090422 |
|
| CX01 | Expiry of patent term |