CN203856692U - Diaphragm pump - Google Patents
Diaphragm pump Download PDFInfo
- Publication number
- CN203856692U CN203856692U CN201420310914.3U CN201420310914U CN203856692U CN 203856692 U CN203856692 U CN 203856692U CN 201420310914 U CN201420310914 U CN 201420310914U CN 203856692 U CN203856692 U CN 203856692U
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- CN
- China
- Prior art keywords
- diaphragm
- piston rod
- pump
- pump housing
- screw
- 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 - Fee Related
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- Reciprocating Pumps (AREA)
Abstract
The utility model discloses a diaphragm pump, which comprises a pump body and a bearing body, wherein the bearing body is arranged on the side wall of the pump body; the pump body and the bearing body are fixedly connected through bolts; a diaphragm is fixedly arranged between the pump body and the bearing body; a piston rod is arranged inside the bearing body; one end of the piston rod is fixedly connected with the diaphragm through a clamping plate, and a connection hole connected with a driving device is formed in the other end of the piston rod; a water inlet is formed in the bottom of the pump body, a water outlet is formed in the top of the pump body, and the water inlet is communicated with the water outlet; a first one-way valve is arranged on the pump body and in a position close to the water inlet, and a second one-way valve is arranged on the pump body and in a position close to the water outlet. As the one-way valves of the diaphragm pump are greater in sealing performance, the diaphragm pump has higher lift and better using effect; moreover, the diaphragm pump is simple in structure, convenient to operate, safe, reliable, and long in service life.
Description
Technical field
The utility model relates to a kind of pump, is specifically related to a kind of diaphragm pump.
Background technique
Diaphragm pump is the important component part of sprayer, is the power resources of sprayer, is used for providing required pressure for sprayer.It is relatively simple that diaphragm pump has structure, and volume is small and exquisite lightweight, very applicable being applied in this Portable movable apparatus of sprayer.It is the one-way valve of steel ball that existing diaphragm pump adopts critical piece conventionally, relies on the shutoff of steel ball to hole and opens, the one-way flow of control liquid.But this kind of design has poorly sealed shortcoming, and according to the change of pump housing direction, the sealing effect of one-way valve is also not quite similar.
Model utility content
(1) technical problem that will solve
It is relatively simple that the technical problems to be solved in the utility model is to provide a kind of structure, has the diaphragm pump of the one-way valve of good seal performance.
(2) technological scheme
For solving the problems of the technologies described above, the utility model provides a kind of diaphragm pump, comprises the pump housing and bearing support, and described bearing support is arranged on the sidewall of the described pump housing, and the described pump housing and bearing support are bolted to connection; Between the described pump housing and described bearing support, be fixedly installed diaphragm, in described bearing support, be provided with piston rod, one end of described piston rod is fixedly connected with by clamping plate with described diaphragm, and the other end of described piston rod offers the attachment hole being connected with drive unit; The bottom of the described pump housing is provided with water intake, and the top of the described pump housing is provided with water outlet, and described water intake is connected with water outlet; Be provided with the first one-way valve at the described pump housing near inlet end, be provided with the second one-way valve at the described pump housing near water outlet end.
Wherein, described the first one-way valve and the second one-way valve include dividing plate, and the center of described dividing plate is provided with through hole, in described through hole, is provided with screw, on described screw, is arranged with stage clip, and the end of described screw is provided with back-up ring.
Wherein, described screw is cone-head screw or thread screw, and described screw and through hole contact segment are provided with sealing gasket.
Wherein, between described piston rod and diaphragm, be provided with backplate, described backplate sectional area is greater than described piston rod, and the edge of described backplate adopts rounding processing.
Wherein, between described piston rod and bearing support, be provided with dirt-proof boot, described dirt-proof boot is for having flexible rubber product.
(3) beneficial effect
Compared with prior art, the one-way valve of the utility model diaphragm pump has higher sealability, makes diaphragm pump have higher lift, and using effect is good; In addition the utility model diaphragm pump also has the features such as simple in structure, easy to operate, safe and reliable, long service life.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of diaphragm pump of the utility model.
Fig. 2 is the partial enlarged drawing of the one-way valve of a kind of diaphragm pump of the utility model.
Fig. 3 is the partial enlarged drawing of the another kind of mode of execution of the one-way valve of a kind of diaphragm pump of the utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but can not be used for limiting scope of the present utility model.
A kind of barrier film pump structure of the utility model as Figure 1-3, comprises the pump housing 1 and bearing support 11, and described bearing support 11 is arranged on the sidewall of the described pump housing 1, and the described pump housing 1 is fixedly connected with by bolt 12 with bearing support 11; Between the described pump housing 1 and described bearing support 11, be fixedly installed diaphragm 14, in described bearing support 11, be provided with piston rod 16, one end of described piston rod 16 is fixedly connected with by clamping plate 13 with described diaphragm 14, and the other end of described piston rod 16 offers the attachment hole 161 being connected with drive unit; The bottom of the described pump housing 1 is provided with water intake 2, and the top of the described pump housing 1 is provided with water outlet 10, and described water intake 2 is connected with water outlet 10; Be provided with the first one-way valve 3 at the described pump housing 1 near water intake 2 ends, be provided with the second one-way valve 9 at the described pump housing 1 near water outlet 10 ends.
As optimization, described the first one-way valve 3 and the second one-way valve 9 include dividing plate 4, and the center of described dividing plate 4 is provided with through hole 401, in described through hole 401, is provided with screw 5, is arranged with stage clip 6 on described screw, and the end of described screw 5 is provided with back-up ring 7.
As optimization, described screw 5 is cone-head screw or thread screw, and described screw 5 is provided with sealing gasket 501 with through hole 401 contact segments, and described sealing gasket 501 can improve the sealability between screw 5 and through hole 401.
As optimization, between described piston rod 16 and diaphragm 14, be provided with backplate 15, described backplate 15 sectional areas are greater than described piston rod 16, the edge of described backplate 15 adopts rounding processing, adopt the backplate 15 of large surface area, can reduce the pressure between piston rod 16 and diaphragm 14, prevent from causing because local compression is excessive the damage of diaphragm 14; In addition, the edge of backplate 15 adopts rounding processing, can make diaphragm 14 be out of shape under piston rod 16 pressure-actings time, is not damaged by the edge of backplate 15, improves the safety reliability of diaphragm 14, makes diaphragm pump have longer working life.
As optimization, between described piston rod 16 and bearing support 11, be provided with dirt-proof boot 17, described dirt-proof boot 17 is for having flexible rubber product, and described dirt-proof boot 17 can prevent that the foreign matters such as extraneous dust from entering pump body, ensures the stationarity that piston rod 16 moves.
Specifically, when diaphragm pump work, drive unit (not shown) piston rod 16 is made horizontal reciprocating movement, in the time that piston rod 16 moves horizontally to the right, piston rod 16 is with dynamic diaphragm 14 that resiliently deformable occurs to the right, therefore in the inner vacuum that produces of cavity 8, liquid enters in valve body 1 by water intake 2, and under the effect of cavity 8 inner vacuum, the elastic force that overcomes stage clip 6 upwards lifts screw 5, the first one-way valve 3 is opened, realize being communicated with between water intake 2 and cavity 8, liquid enters in cavity 8 by the through hole 401 on dividing plate 4, now the second one-way valve 9 is in closed state.In the time that piston rod 16 moves horizontally left, piston rod 16 is with dynamic diaphragm 14 that resiliently deformable occurs left, therefore at the larger pressure of the inner generation of cavity 8, liquid is opened the second one-way valve 9 under pressure, realize being communicated with of cavity 8 and water outlet 10, now the first one-way valve 3 is in closed state, and therefore liquid flows out the pump housing 1 from water outlet 10 under pressure-acting again, so far realizes the draining action that once absorbs water.
The one-way valve of the utility model diaphragm pump has higher sealability, makes diaphragm pump have higher lift, and using effect is good; In addition the utility model diaphragm pump also has the features such as simple in structure, easy to operate, safe and reliable, long service life.
These are only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a diaphragm pump, it is characterized in that: comprise the pump housing (1) and bearing support (11), described bearing support (11) is arranged on the sidewall of the described pump housing (1), and the described pump housing (1) is fixedly connected with by bolt (12) with bearing support (11); Between the described pump housing (1) and described bearing support (11), be fixedly installed diaphragm (14), in described bearing support (11), be provided with piston rod (16), one end of described piston rod (16) is fixedly connected with by clamping plate (13) with described diaphragm (14), and the other end of described piston rod (16) offers the attachment hole (161) being connected with drive unit; The bottom of the described pump housing (1) is provided with water intake (2), and the top of the described pump housing (1) is provided with water outlet (10), and described water intake (2) is connected with water outlet (10); Hold and be provided with the first one-way valve (3) near water intake (2) at the described pump housing (1), hold and be provided with the second one-way valve (9) near water outlet (10) at the described pump housing (1).
2. diaphragm pump according to claim 1, it is characterized in that: described the first one-way valve (3) and the second one-way valve (9) include dividing plate (4), the center of described dividing plate (4) is provided with through hole (401), in described through hole (401), be provided with screw (5), on described screw, be arranged with stage clip (6), the end of described screw (5) is provided with back-up ring (7).
3. diaphragm pump according to claim 2, is characterized in that: described screw (5) is cone-head screw or thread screw, and described screw (5) is provided with sealing gasket (501) with through hole (401) contact segment.
4. diaphragm pump according to claim 1, it is characterized in that: between described piston rod (16) and diaphragm (14), be provided with backplate (15), described backplate (15) sectional area is greater than described piston rod (16), and the edge of described backplate (15) adopts rounding processing.
5. according to the diaphragm pump described in claim 1 to 4 any one, it is characterized in that: between described piston rod (16) and bearing support (11), be provided with dirt-proof boot (17), described dirt-proof boot (17) is for having flexible rubber product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420310914.3U CN203856692U (en) | 2014-06-12 | 2014-06-12 | Diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420310914.3U CN203856692U (en) | 2014-06-12 | 2014-06-12 | Diaphragm pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203856692U true CN203856692U (en) | 2014-10-01 |
Family
ID=51606547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420310914.3U Expired - Fee Related CN203856692U (en) | 2014-06-12 | 2014-06-12 | Diaphragm pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203856692U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889056A (en) * | 2015-01-20 | 2016-08-24 | 于长和 | Diaphragm floating ball type oil isolating device |
| CN105889036A (en) * | 2015-01-20 | 2016-08-24 | 于长和 | Diaphragm type oil isolating device |
| GB2554128A (en) * | 2016-08-08 | 2018-03-28 | Sasserath & Co Kg H | Pressure reducer assembly |
-
2014
- 2014-06-12 CN CN201420310914.3U patent/CN203856692U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889056A (en) * | 2015-01-20 | 2016-08-24 | 于长和 | Diaphragm floating ball type oil isolating device |
| CN105889036A (en) * | 2015-01-20 | 2016-08-24 | 于长和 | Diaphragm type oil isolating device |
| GB2554128A (en) * | 2016-08-08 | 2018-03-28 | Sasserath & Co Kg H | Pressure reducer assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20150612 |
|
| EXPY | Termination of patent right or utility model |