CN216381792U - Miniature diaphragm pump of tight fit connection - Google Patents
Miniature diaphragm pump of tight fit connection Download PDFInfo
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- CN216381792U CN216381792U CN202122918430.XU CN202122918430U CN216381792U CN 216381792 U CN216381792 U CN 216381792U CN 202122918430 U CN202122918430 U CN 202122918430U CN 216381792 U CN216381792 U CN 216381792U
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Abstract
The utility model provides a miniature diaphragm pump in close fit connection, which comprises a pump nozzle, a sealing sheet, a check valve, an umbrella block, a valve frame, a piston frame, a piston push rod, a motor frame, an eccentric wheel and a motor, wherein the pump nozzle, the sealing sheet, the valve frame, the piston frame and the motor frame are fixedly connected and arranged from top to bottom through mounting screws; be provided with first installation location structure between gasket and the valve frame, be provided with second installation location structure between piston and the piston frame, be provided with third installation location structure between piston frame and the motor frame. The matching, positioning, limiting and moving spaces among the parts of the utility model reduce the waste of space as much as possible, realize tight matching connection, reduce the volume and improve the space utilization rate.
Description
Technical Field
The utility model relates to the technical field of diaphragm pumps, in particular to a miniature diaphragm pump in tight fit connection.
Background
The diaphragm water pump is an industrial product widely applied to daily life in the market, such as a coffee machine, a water dispenser, a water purifier, a floor/carpet cleaning machine and the like, and has various types and styles, because the diaphragm water pump has small size, excellent performance and low cost, the diaphragm water pump tends to replace an electromagnetic water pump gradually.
Because of the requirement of electrification automation intellectualization, the requirement on a pump valve is higher, and the pump valve meets more functions under the condition of smaller volume. And the existing product has larger volume and smaller flow pressure.
There is a need for a miniature diaphragm pump having a smaller system and a tighter connection that solves the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a miniature diaphragm pump in tight fit connection, which solves the problems of overlarge product volume, low space utilization rate and insufficiently tight assembly of the existing diaphragm pump by technically improving the structure of the existing diaphragm pump.
In order to solve the technical problems, the utility model specifically adopts the following technical scheme:
a miniature diaphragm pump with tight fit connection comprises a pump nozzle, a sealing sheet, a check valve, a nut, a valve frame, a piston frame, a piston push rod, a motor frame, an eccentric wheel and a motor, wherein the pump nozzle, the sealing sheet, the valve frame, the piston frame and the motor frame are arranged from top to bottom through fixing screws, the motor is arranged on the motor frame, the output end of the motor is connected with the eccentric wheel, the eccentric wheel is connected with the piston push rod, the piston is arranged on the piston frame, the piston push rod is sleeved at a rubber cup of the piston, the motor is used for driving the eccentric wheel and the rubber cup of the piston push rod to extrude the piston to pump, the valve frame is arranged above the piston frame, the valve frame is provided with a water inlet cavity and a water outlet cavity, the water inlet cavity is communicated with the water inlet, the water outlet is communicated with the water outlet cavity, and the water outlet cavity is communicated with the rubber cup cavity of the piston through the valve frame, the valve frame is provided with a small umbrella at the position of the water inlet cavity, and a check valve at the position of the water outlet cavity;
be provided with first installation location structure between gasket and the valve frame, be provided with second installation location structure between piston and the piston frame, be provided with third installation location structure between piston frame and the motor frame.
Preferably, the first mounting and positioning structure comprises a first positioning pin and a first positioning hole, the first positioning pin extends towards the sealing piece inside the valve frame, the first positioning hole is formed in the sealing piece, and the first positioning hole is connected with the first positioning pin in a tight fit manner.
Preferably, there are three groups of first locating pin and first locating hole, just first locating pin and first locating hole are even interval to be set up in the periphery department of gasket and valve frame.
Preferably, the second mounting and positioning structure includes a second positioning pin and a second positioning hole, the second positioning pin is arranged in the piston frame and extends towards the piston, the piston is provided with the second positioning hole, and the second positioning hole is tightly connected with the second positioning pin in a matching manner.
Preferably, there are three groups of the second positioning pins and the second positioning holes, and the second positioning holes are uniformly arranged at the periphery of the rubber cup of the piston at intervals.
Preferably, third installation positioning mechanism includes spacing post and spacing recess, piston frame bottom outside is provided with spacing post along extending to motor frame direction, spacing recess has been seted up along the periphery on the motor frame, spacing post inlays each other with spacing recess and inserts the cooperation.
Preferably, the limiting grooves are formed in the positions of the positioning screw mounting holes in the motor frame, and the limiting columns and the limiting grooves are three groups and are respectively arranged on the peripheral edges of the piston frame and the motor frame.
Compared with the prior art, the utility model has the following beneficial effects:
the motor of the utility model rotates to drive the eccentric wheel on the output shaft of the motor, the rotating eccentric wheel drives the lever in the inclined hole, and the lever is connected with the piston push rod, thereby realizing the reciprocating work of the piston. Because the valve frame is provided with the air inlet valve and the air outlet valve which are matched with each other, the volume difference is generated in the process that the piston reciprocates up and down, thereby generating pumping.
The piston frame and the motor frame adopt an embedded structure, and the sealing sheet and the valve frame are positioned by adopting a tight pin and a hole, so that the internal space is fully utilized. The piston and the piston frame are positioned and limited by matching of the pin and the hole, a positioning hole is formed in the piston, and then the piston and the pin column are positioned and limited. The piston frame and the motor frame adopt embedded limit pins, so that the space is fully utilized and the piston frame is matched with the positioning columns to achieve positioning and limiting.
The existing product is also three cylinders, the outer diameter is 18MM, and the outer diameter of the existing product is only 17 MM; and simultaneously, the efficiency is higher, the flow and the pressure are twice of those of similar products in the market, the flow can be 500ML/Min, and the maximum outlet pressure is 3 bar.
The matching, positioning, limiting and moving spaces among the parts of the utility model reduce the waste of space as much as possible, realize tight matching connection, reduce the volume and improve the space utilization rate.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a schematic view of a first mounting and positioning structure of the present invention;
FIG. 4 is a schematic view of a second mounting and positioning structure and a third mounting and positioning structure of the present invention;
description of reference numerals: the pump nozzle comprises a pump nozzle 1, a sealing sheet 2, a check valve 3, an umbrella block 4, a valve frame 5, a piston 6, a piston frame 7, a piston push rod 8, a motor frame 9, an eccentric wheel 10, a motor 11, a water inlet 12, a water outlet 13, a first mounting and positioning structure 14, a first positioning pin 141, a first positioning hole 142, a second mounting and positioning structure 15, a second positioning pin 151, a second positioning hole 152, a third mounting and positioning structure 16, a limiting column 161 and a limiting groove 162.
Detailed Description
The details of the present invention will be described below with reference to the accompanying drawings and examples.
As shown in fig. 1-4, the present embodiment provides a tight-fit connection micro diaphragm pump, which includes a pump nozzle 1, a sealing plate 2, a check valve 3, an umbrella block 4, a valve frame 5, a piston 6, a piston frame 7, a piston push rod 8, a motor frame 9, an eccentric wheel 10 and a motor 11, wherein the pump nozzle 1, the sealing plate 2, the valve frame 5, the piston frame 7 and the motor frame 9 are fixedly connected and disposed through mounting screws from top to bottom, the motor 11 is mounted on the motor frame 9, an output end of the motor 11 is connected with the eccentric wheel 10, the eccentric wheel 10 is connected with the piston push rod 8, the piston 6 is mounted on the piston frame 7, the piston push rod 8 is sleeved on a rubber cup of the piston 6, the motor 11 is used for driving the eccentric wheel 10 and the piston push rod 8 to extrude the rubber cup of the piston 6 for pumping, the valve frame 5 is mounted above the piston frame 7, the valve frame 5 is provided with a water inlet cavity and a water outlet cavity, the pump nozzle 1 is provided with a water inlet 12 and a water outlet 13, the water inlet cavity is communicated with the water inlet 12, the water outlet 13 is communicated with the water outlet cavity, the water inlet cavity and the water outlet cavity penetrate through the valve frame 5 to be communicated with the rubber cup cavity of the piston 6, the valve frame 5 is provided with an umbrella nut 4 at the water inlet cavity, and the valve frame 5 is provided with a check valve 3 at the water outlet cavity;
be provided with first installation location structure 14 between gasket 2 and the valve frame 5, be provided with second installation location structure 15 between piston 6 and the piston frame 7, be provided with third installation location structure 16 between piston frame 7 and the motor frame 9.
Further, in order to realize the installation positioning and limiting effects of the first installation positioning structure 14, the first installation positioning structure 14 includes a first positioning pin 141 and a first positioning hole 142, the inside of the valve frame 5 extends towards the sealing piece 2 and is provided with the first positioning pin 141, the sealing piece 2 is provided with the first positioning hole 142, and the first positioning hole 142 is tightly connected with the first positioning pin 141 in a matching manner.
Further, there are three sets of the first positioning pins 141 and the first positioning holes 142, and the first positioning pins 141 and the first positioning holes 142 are uniformly spaced at the periphery of the sealing plate 2 and the valve frame 5.
Further, in order to realize the mounting, positioning and limiting effects of the second mounting and positioning structure 15, the second mounting and positioning structure 15 includes a second positioning pin 151 and a second positioning hole 152, the second positioning pin 151 is disposed in the piston frame 7 and extends towards the piston 6, the piston 6 is provided with the second positioning hole 152, and the second positioning hole 152 is tightly connected with the second positioning pin 151 in a matching manner.
Further, there are three sets of the second positioning pins 151 and the second positioning holes 152, and the second positioning holes 152 are uniformly spaced at the periphery of the rubber cup of the piston 6.
Further, in order to realize the installation location and the spacing effect of third installation location structure 16, third installation location mechanism includes spacing post 161 and spacing recess 162, 7 bottom outer edges of piston frame are provided with spacing post 161 to motor frame 9 direction extensions, spacing recess 162 has been seted up along the periphery on the motor frame 9, spacing post 161 inlays each other with spacing recess 162 and inserts the cooperation.
Further, limiting grooves 162 are formed in the positions of the positioning screw mounting holes in the motor frame 9, and three groups of limiting columns 161 and three groups of limiting grooves 162 are formed in the outer peripheral edges of the piston frame 7 and the motor frame 9 respectively.
In the embodiment, the motor rotates to drive the eccentric wheel on the output shaft of the motor, the rotating eccentric wheel drives the lever in the inclined hole, and the lever is connected with the piston push rod, so that the reciprocating work of the piston is realized. Because the valve frame is provided with the air inlet valve and the air outlet valve which are matched with each other, the volume difference is generated in the process that the piston reciprocates up and down, thereby generating pumping.
The piston frame and the motor frame of the embodiment adopt an embedded structure, and the sealing sheet and the valve frame are positioned by adopting a tight pin and a hole, so that the internal space is fully utilized. The piston and the piston frame are positioned and limited by matching of the pin and the hole, a positioning hole is formed in the piston, and then the piston and the pin column are positioned and limited. The piston frame and the motor frame adopt embedded limit pins, so that the space is fully utilized and the piston frame is matched with the positioning columns to achieve positioning and limiting.
The existing product is also three cylinders, the outer diameter is 18MM, and the outer diameter of the existing product is only 17 MM; and simultaneously, the efficiency is higher, the flow and the pressure are twice of those of similar products in the market, the flow can be 500ML/Min, and the maximum outlet pressure is 3 bar.
The matching, positioning, limiting and moving spaces among the parts of the embodiment reduce the waste of the spaces as much as possible, the parts are connected in a tight fit manner, the size is reduced, and the space utilization rate is improved.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the description of the attached drawings, the specific connection mode of each part adopts conventional means such as mature bolts, rivets, welding and the like in the prior art, the machines, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or through an intermediary, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.
Claims (7)
1. A miniature diaphragm pump in tight fit connection is characterized by comprising a pump nozzle, a sealing sheet, a check valve, an umbrella block, a valve frame, a piston frame, a piston push rod, a motor frame, an eccentric wheel and a motor, wherein the pump nozzle, the sealing sheet, the valve frame, the piston frame and the motor frame are fixedly connected and arranged through mounting screws from top to bottom, the motor is mounted on the motor frame, the output end of the motor is connected with the eccentric wheel, the eccentric wheel is connected with the piston push rod, the piston is mounted on the piston frame, the piston push rod is sleeved at a rubber cup of the piston, the motor is used for driving the eccentric wheel and the piston push rod to extrude the rubber cup of the piston to pump, the valve frame is mounted above the piston frame and is provided with a water inlet cavity and a water outlet cavity, the pump nozzle is provided with a water inlet and a water outlet, the water inlet cavity is communicated with the water inlet, the water outlet is communicated with the water outlet cavity, the water inlet cavity and the water outlet cavity penetrate through the valve frame to be communicated with the rubber cup cavity of the piston, an umbrella nut is arranged on the valve frame at the water inlet cavity, and a check valve is arranged on the valve frame at the water outlet cavity;
be provided with first installation location structure between gasket and the valve frame, be provided with second installation location structure between piston and the piston frame, be provided with third installation location structure between piston frame and the motor frame.
2. The tight fit connection type micro diaphragm pump according to claim 1, wherein the first mounting and positioning structure comprises a first positioning pin and a first positioning hole, the first positioning pin extends towards the sealing plate inside the valve frame, the sealing plate is provided with the first positioning hole, and the first positioning hole is tightly connected with the first positioning pin in a matching manner.
3. The tight fitting connection miniature diaphragm pump of claim 2, wherein there are three sets of said first alignment pins and first alignment holes, and said first alignment pins and first alignment holes are evenly spaced around the periphery of the sealing plate and valve frame.
4. The tight fit connection miniature diaphragm pump of claim 1, wherein the second mounting and positioning structure comprises a second positioning pin and a second positioning hole, the second positioning pin is arranged in the piston frame and extends towards the piston, the piston is provided with the second positioning hole, and the second positioning hole is tightly matched and connected with the second positioning pin.
5. The tight fitting connection miniature diaphragm pump of claim 4, wherein there are three sets of said second positioning pins and second positioning holes, and said second positioning holes are evenly spaced around the periphery of the rubber cup of the piston.
6. The tight-fit connection miniature diaphragm pump of claim 1, wherein the third mounting and positioning mechanism comprises a limiting post and a limiting groove, the outer edge of the bottom of the piston frame is provided with the limiting post extending towards the motor frame, the motor frame is provided with the limiting groove along the periphery, and the limiting post and the limiting groove are mutually inserted and matched.
7. The tight fit connection miniature diaphragm pump of claim 6, wherein the limiting grooves are provided at the location of the positioning screw mounting holes on the motor frame, and three sets of limiting posts and limiting grooves are provided at the outer peripheral edges of the piston frame and the motor frame, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122918430.XU CN216381792U (en) | 2021-11-25 | 2021-11-25 | Miniature diaphragm pump of tight fit connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122918430.XU CN216381792U (en) | 2021-11-25 | 2021-11-25 | Miniature diaphragm pump of tight fit connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216381792U true CN216381792U (en) | 2022-04-26 |
Family
ID=81217345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122918430.XU Active CN216381792U (en) | 2021-11-25 | 2021-11-25 | Miniature diaphragm pump of tight fit connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216381792U (en) |
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2021
- 2021-11-25 CN CN202122918430.XU patent/CN216381792U/en active Active
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