CN210686244U - Multi-core diaphragm pump - Google Patents
Multi-core diaphragm pump Download PDFInfo
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- CN210686244U CN210686244U CN201921182960.9U CN201921182960U CN210686244U CN 210686244 U CN210686244 U CN 210686244U CN 201921182960 U CN201921182960 U CN 201921182960U CN 210686244 U CN210686244 U CN 210686244U
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Abstract
The utility model discloses a multinuclear diaphragm pump belongs to the diaphragm pump field. The multi-core diaphragm pump comprises a water inlet pipeline, a water outlet pipeline and at least one diaphragm pump module, wherein each diaphragm pump module comprises two diaphragm pumps which are symmetrically arranged on the upper side and the lower side of the water inlet pipeline and the water outlet pipeline. Each diaphragm pump comprises a pump body and a motor; a water inlet cavity and a water outlet cavity are formed in the pump body; diaphragm sheets are arranged on the front end face and the rear end face of the pump body, a pump cover is arranged on the outer side of the diaphragm sheet, and a working cavity is formed between the pump cover and the diaphragm sheet; the water inlet pipeline is communicated with the water inlet cavity, the diaphragm is provided with a water inlet valve and a water outlet valve, and the water outlet cavity is communicated with the water outlet pipeline; a connecting rod is arranged in the pump body, an eccentric wheel is arranged on an output shaft of the motor, the eccentric wheel is connected with the diaphragm through the connecting rod, and the output shaft of the motor drives the diaphragm to reciprocate back and forth through the eccentric wheel and the connecting rod. The utility model can increase the pressure and flow of the diaphragm pump, and has low cost; the operation of one or more diaphragm pumps can be flexibly and selectively controlled.
Description
Technical Field
The utility model relates to a diaphragm pump field especially indicates a multinuclear diaphragm pump.
Background
Diaphragm pumps rely on the back and forth pumping of a diaphragm to change the working chamber volume to draw in and expel fluid. The diaphragm separates the sucked liquid from the discharged liquid, and when the diaphragm moves to one side, the liquid is sucked by negative pressure in the working chamber, and when the diaphragm moves to the other side, the liquid is discharged.
The diaphragm pump is powered by an electric motor, and the pressure and flow rate provided by the diaphragm pump is related to the volume of the pump body and the power of the electric motor. In the prior art, in order to increase the pressure and flow rate of the diaphragm pump, a large-volume pump body and a large-size (power) motor are generally required. Therefore, the cost of the diaphragm pump is increased, and the performance of the motor is seriously wasted when the large-volume diaphragm pump works at a small flow, so that the economical efficiency is poor.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model arranges a plurality of diaphragm pumps in a limited space, thereby fully utilizing the space, increasing the pressure and flow of the diaphragm pumps and having low cost; the operation of one or more diaphragm pumps can be flexibly and selectively controlled.
The utility model provides a technical scheme as follows:
a multi-core diaphragm pump comprises a water inlet pipeline, a water outlet pipeline and at least one diaphragm pump module, wherein the water inlet pipeline and the water outlet pipeline are arranged in parallel at the same horizontal height; the axis of inlet channel and outlet conduit is the straight line and is parallel to each other, and every diaphragm pump module includes two diaphragm pumps, and two diaphragm pumps symmetry set up the upper and lower both sides at inlet channel and outlet conduit, wherein:
each diaphragm pump comprises a pump body and a motor; a water inlet cavity and a water outlet cavity which are mutually separated are arranged in each pump body; diaphragm sheets are arranged on the front end face and the rear end face of the pump body, a pump cover is arranged on the outer side of the diaphragm sheet, and a working cavity is formed between the pump cover and the diaphragm sheet; the water inlet pipeline is communicated with the water inlet cavity, a water inlet valve enabling the water inlet cavity to be communicated with the working cavity in a one-way mode is arranged on the diaphragm, a water outlet valve enabling the working cavity to be communicated with the water outlet cavity in a one-way mode is arranged on the diaphragm, and the water outlet cavity is communicated with the water outlet pipeline;
the pump is characterized in that a connecting rod is arranged in the pump body, an output shaft of the motor is provided with an eccentric wheel, the eccentric wheel is positioned in a central hole of the connecting rod, the front end and the rear end of the connecting rod are respectively connected with diaphragm sheets at the front end and the rear end of the pump body, and the output shaft of the motor drives the diaphragm sheets to reciprocate back and forth through the eccentric wheel and the connecting rod.
Further, the water inlet valve comprises a water inlet valve seat, a water inlet valve core is arranged in the water inlet valve seat, and a water inlet valve spring is arranged between the water inlet valve core and the pump cover; the water outlet valve comprises a water outlet valve seat, a water outlet valve core is arranged in the water outlet valve seat, and a water outlet valve spring is arranged between the water outlet valve core and the connecting seat in the water outlet cavity.
Furthermore, both ends are provided with the spliced pole around the connecting rod, the end of spliced pole is the back taper structure, it has the connecting hole to open on the diaphragm, the inner wall shape of connecting hole with the shape of spliced pole suits.
Furthermore, the water inlet pipeline is communicated with the water inlet cavity through a water inlet hole, and the water outlet cavity is communicated with the water outlet pipeline through a water outlet hole; the eccentric wheel is provided with a bearing, and an output shaft of the motor drives the diaphragm to reciprocate back and forth through the eccentric wheel, the bearing and the connecting rod.
Further, the motor of each diaphragm pump is controlled by a switch; or, the motor of one diaphragm pump module is controlled by a switch; or the motors of all the diaphragm pumps positioned on the upper sides of the water inlet pipeline and the water outlet pipeline are controlled by one switch, and the motors of all the diaphragm pumps positioned on the lower sides of the water inlet pipeline and the water outlet pipeline are controlled by one switch.
Further, when a plurality of diaphragm pump modules are included, the plurality of diaphragm pump modules are horizontally arranged along the water inlet pipe and the water outlet pipe.
Further, the multi-core diaphragm pump further comprises an overpressure power-off device, and the overpressure power-off device is arranged on the water outlet pipeline; the overpressure power-off device comprises a pressure reducing pad, a first spring sleeve and a first pressure limiting spring which are sequentially arranged from bottom to top, the water outlet pipeline is communicated with the lower portion of the pressure reducing pad through a pressure limiting hole, the upper end of the first spring sleeve is of a boss structure, a contact of the pressure limiting switch is located above the boss structure, and the motor is controlled by the pressure limiting switch.
Furthermore, a first pressure reducing ring is arranged on the periphery of the first spring sleeve, a first spring seat is arranged above the first pressure limiting spring, and a first pressure regulating screw is arranged above the first spring seat.
Further, the multi-core diaphragm pump further comprises an overpressure overflow device, and the overpressure overflow device is arranged on the water outlet pipeline; the overpressure overflow device comprises a sealing ring, a sealing gasket, a second spring sleeve and a second pressure limiting spring which are sequentially arranged from bottom to top, the water outlet pipeline is communicated with the inside of the sealing ring through an overflow hole, a backflow hole is formed in the outer portion of the sealing ring, and the backflow hole is communicated with the water inlet pipeline.
Furthermore, a second pressure reducing ring is arranged on the periphery of the second spring sleeve, a second spring seat is arranged above the second pressure limiting spring, and a second pressure regulating screw is arranged above the second spring seat.
The utility model discloses following beneficial effect has:
the utility model discloses a two diaphragm pump symmetries of diaphragm pump module set up in the upper and lower both sides of inlet channel and outlet conduit, and the pump body of two diaphragm pumps sets up relatively and is connected with inlet channel and outlet conduit, inlet channel and outlet conduit of two upper and lower diaphragm pump commonalities. When a plurality of diaphragm pump modules are arranged, the diaphragm pump modules are arranged along the left and right sides of the water inlet pipeline and the water outlet pipeline. The utility model discloses arrange a plurality of diaphragm pumps in limited space, make full use of space. Compare with the method of increasing diaphragm pump volume and motor power (volume) among the prior art, the utility model discloses a set up at least one diaphragm pump module, every diaphragm pump includes the mode of two upper and lower diaphragm pumps, can increase the pressure and the flow of diaphragm pump equally to it is with low costs. In addition, when low flow during operation, the utility model discloses can select in a flexible way to control certain or several diaphragm pump work, the problem that leads to when high-power motor low output can not appear.
Drawings
FIG. 1 is a front view of one embodiment of a multi-core diaphragm pump of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged view of the area of the over-voltage power-off device of FIG. 2;
FIG. 4 is a sectional view taken along line B-B of FIG. 1;
FIG. 5 is a cross-sectional view taken along line C-C of FIG. 1;
FIG. 6 is a cross-sectional view taken along line D-D of FIG. 1 (with the motor portion omitted);
FIG. 7 is a cross-sectional view taken along line E-E of FIG. 1 (with the motor portion omitted);
FIG. 8 is a sectional view of the multi-core diaphragm pump shown in FIG. 1, taken along the direction F-F (see FIG. 2 along the direction F-F);
FIG. 9 is a sectional view of the multi-core diaphragm pump shown in FIG. 1 taken along the direction G-G (see FIG. 2 along the direction G-G);
FIG. 10 is a cross-sectional view of another embodiment of a multi-core diaphragm pump of the present invention (cross-sectional direction is in the direction A-A of FIG. 1);
fig. 11 is an enlarged view of the area of the overpressure relief device in fig. 10.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The utility model provides a multi-core diaphragm pump, as shown in fig. 1-11, comprising a water inlet pipeline 1 and a water outlet pipeline 2 which are arranged side by side at the same horizontal height, and at least one diaphragm pump module 3; the axis of inlet channel 1 and outlet conduit 2 is the straight line and is parallel to each other, and every diaphragm pump module 3 includes two diaphragm pumps, and two diaphragm pumps symmetry set up in inlet channel 1 and outlet conduit 3's upper and lower both sides, wherein:
each diaphragm pump comprises a pump body 4 and a motor 5; a water inlet cavity 6 and a water outlet cavity 7 which are mutually separated are arranged in each pump body 4; diaphragm sheets 8 are arranged on the front end face and the rear end face of the pump body 4, a pump cover 9 is arranged on the outer side of the diaphragm sheet 8, and a working cavity 10 is formed between the pump cover 9 and the diaphragm sheet 8; the water inlet pipeline 1 is communicated with the water inlet cavity 6, the diaphragm 8 is provided with a water inlet valve 11 which enables the water inlet cavity 6 to be communicated with the working cavity 10 in a one-way mode, the diaphragm 8 is provided with a water outlet valve 12 which enables the working cavity 10 to be communicated with the water outlet cavity 7 in a one-way mode, and the water outlet cavity 6 is communicated with the water outlet pipeline 2;
a connecting rod 13 is arranged in the pump body 4, an output shaft 14 of the motor 5 is provided with an eccentric wheel 15, the eccentric wheel 15 is positioned in a central hole of the connecting rod 13, the front end and the rear end of the connecting rod 13 are respectively connected with the diaphragm sheets 8 at the front end and the rear end of the pump body, and the output shaft 14 of the motor 5 drives the diaphragm sheets 8 to reciprocate back and forth through the eccentric wheel 15 and the connecting rod 13.
In the present invention, the multi-core diaphragm pump shown in fig. 1 is used as a reference in the up-down, left-right, front-back, and other directions. The utility model discloses at the during operation, with inlet channel and liquid intercommunication, the power of switch-on motor has an eccentric volume because the eccentric wheel on the output shaft of motor and motor shaft decentraction, consequently the eccentric wheel is along with the rotation of motor and reciprocating swing all around, drives diaphragm reciprocating deformation through the connecting rod and removes for the volume of working chamber constantly enlarges and reduces. When the diaphragm deforms towards one side of the pump body, the volume of the working cavity is increased, negative pressure is generated in the working cavity, and liquid is sucked into the working cavity from the water inlet cavity through the water inlet valve; when the diaphragm deforms towards one side of the pump cover, the volume of the working cavity is reduced, the pressure in the working cavity is increased, and the liquid is pressed into the water outlet cavity from the working cavity through the water outlet valve and enters the water outlet pipeline to finish the liquid conveying.
The utility model discloses a two diaphragm pump symmetries of diaphragm pump module set up in the upper and lower both sides of inlet channel and outlet conduit, and the pump body of two diaphragm pumps sets up relatively and is connected with inlet channel and outlet conduit, inlet channel and outlet conduit of two upper and lower diaphragm pump commonalities. When a plurality of diaphragm pump modules are arranged, the diaphragm pump modules are arranged along the left and right sides of the water inlet pipeline and the water outlet pipeline. The utility model discloses arrange a plurality of diaphragm pumps in limited space, make full use of space. Compare with the method of increasing diaphragm pump volume and motor power (volume) among the prior art, the utility model discloses a set up at least one diaphragm pump module, every diaphragm pump includes the mode of two upper and lower diaphragm pumps, can increase the pressure and the flow of diaphragm pump equally to it is with low costs. In addition, when low flow during operation, the utility model discloses can select in a flexible way to control certain or several diaphragm pump work, the problem that leads to when high-power motor low output can not appear.
As an improvement of the present invention, the water inlet valve 11 includes a water inlet valve seat 16, a water inlet valve core 17 is disposed in the water inlet valve seat 16, and a water inlet valve spring 18 is disposed between the water inlet valve core 17 and the pump cover 9. When negative pressure is generated in the working cavity, the pressure generated by the water inlet cavity on the valve core of the water inlet valve enables the water inlet valve spring to contract, the water inlet valve is opened, and liquid enters the working cavity from the water inlet cavity; when the pressure in the working cavity is increased, the water inlet valve spring is reset, the water inlet valve spring and the water pressure in the working cavity enable the valve core of the water inlet valve to tightly push against the valve seat of the water inlet valve, and the water inlet valve is closed.
The water outlet valve 12 comprises a water outlet valve seat 19, a water outlet valve core 20 is arranged in the water outlet valve seat 19, and a water outlet valve spring 22 is arranged between the water outlet valve core 20 and a connecting seat 21 in the water outlet cavity 7. When the pressure in the working cavity is increased, the pressure generated by the working cavity on the valve core of the water outlet valve enables the spring of the water outlet valve to contract, and the water outlet valve opens liquid to enter the water outlet cavity from the working cavity; when negative pressure is generated in the working cavity, the water outlet valve spring is reset, the water outlet valve core is tightly propped against the valve seat of the water outlet valve by the water outlet valve spring and the negative pressure in the working cavity, and the water outlet valve is closed.
In order to facilitate the connection of the connecting rod and the diaphragm, the front end and the rear end of the connecting rod 13 are provided with connecting columns 23, the tail ends of the connecting columns 23 are in inverted cone structures, the diaphragm 8 is provided with connecting holes, and the shapes of the inner walls of the connecting holes are matched with the shapes of the connecting columns 23.
The utility model discloses in, inlet channel 1 is through inlet opening 24 and 6 intercommunications in intake antrum, goes out the apopore 25 and leads to pipe 2 intercommunication in play water cavity 7. The eccentric wheel 15 can be provided with a bearing 26, and the output shaft 14 of the motor 5 drives the diaphragm 8 to reciprocate back and forth through the eccentric wheel 15, the bearing 26 and the connecting rod 13. The utility model discloses a motor outside can also be provided with the motor casing.
In order to control the diaphragm pumps conveniently, the motor of each diaphragm pump can be controlled by a switch; or, the motor of one diaphragm pump module can be controlled by one switch; or the motors of all the diaphragm pumps positioned on the upper sides of the water inlet pipeline and the water outlet pipeline can be controlled by one switch, and the motors of all the diaphragm pumps positioned on the lower sides of the water inlet pipeline and the water outlet pipeline are controlled by one switch. The switch is shown in figure 1 at 27.
When a plurality of diaphragm pump modules are included, the plurality of diaphragm pump modules are horizontally arranged along the water inlet pipe 1 and the water outlet pipe 2.
As another improvement of the utility model, the multi-core diaphragm pump can further comprise an overpressure power-off device i, and the overpressure power-off device i is arranged on the water outlet pipeline 2; the overpressure power-off device I comprises a pressure reducing pad 28, a first spring sleeve 29 and a first pressure limiting spring 30 which are sequentially arranged from bottom to top, the water outlet pipe 2 is communicated with the lower portion of the pressure reducing pad 28 through a pressure limiting hole 31, the upper end of the first spring sleeve 29 is of a boss structure, a contact of a pressure limiting switch 32 is located above the boss structure, and the pressure limiting switch 32 controls a motor.
When the outlet pipe is blocked or a pipe connected with the outlet pipe subsequently is blocked, the diaphragm pump pumps liquid into the outlet pipe all the time, so that the water pressure in the outlet pipe is increased, and if no protective measures are taken, the diaphragm pump or other externally connected equipment can be damaged.
The utility model discloses can restrict outlet conduit's water pressure through superpressure power-off device, outlet conduit is connected to the below that the decompression filled up through the voltage limiting hole, when outlet conduit's water pressure reached a definite value, high-pressure liquid produced ascending pressure to the decompression pad, the decompression pad upwards warp, promote first spring housing rebound certain distance, the contact of voltage limiting switch is pressed to the boss structure of first spring housing, voltage limiting switch makes the circuit disconnection circular telegram, the motor stall, water pressure in the outlet conduit is restricted at certain within range, prevent damage equipment. When the blockage fault is eliminated, the water pressure of the water outlet pipeline is reduced, the pressure reducing pad and the first spring sleeve reset under the pressure of the first spring, the contact of the pressure limiting switch resets, and the motor starts to operate again.
Further, the first spring housing 29 may be further provided with a first pressure reducing ring 33 at the outer periphery thereof to provide a guide for the up-and-down movement of the first spring housing, and a space for deformation of the pressure reducing pad is left at the lower portion of the first pressure reducing ring. A first spring seat 34 is arranged above the first pressure limiting spring 30, a first pressure regulating screw 35 is arranged above the first spring seat 34, and the pressure regulating screw regulates the upper position and the lower position of the spring seat and sets the pressure value in the power-off process.
As another improvement of the present invention, the multi-core diaphragm pump may further include an overpressure overflow device ii, and the overpressure overflow device ii is disposed on the water outlet pipe 2; the overpressure overflow device II comprises a sealing ring 36, a sealing gasket 37, a second spring sleeve 38 and a second pressure limiting spring 39 which are sequentially arranged from bottom to top, the water outlet pipeline 2 is communicated with the inside of the sealing ring 36 through an overflow hole 40, a backflow hole 41 is formed in the outer portion of the sealing ring 36, and the backflow hole 41 is communicated with the water inlet pipeline 1.
The utility model discloses can restrict outlet conduit's water pressure through superpressure overflow arrangement, outlet conduit is connected to the sealed below of filling up through the overflow hole, and when outlet conduit's water pressure reached a definite value, high-pressure liquid produced ascending pressure to sealed the pad, and sealed pad upwards warp for sealed the sealed seal between pad and the sealing ring is opened, and liquid gets into the inlet conduit from outlet conduit through overflow hole-sealing ring-backward flow hole, reaches the purpose of voltage limiting. When the blocking fault is eliminated, the water pressure of the water outlet pipeline is reduced, the sealing gasket and the second spring sleeve are reset under the pressure of the second spring, the sealing gasket and the sealing ring are sealed again, and liquid does not flow back any more.
Further, a second pressure reducing ring 42 is arranged on the periphery of the second spring sleeve 38, a second spring seat 43 is arranged above the second pressure limiting spring 39, and a second pressure regulating screw 44 is arranged above the second spring seat 43.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A multi-core diaphragm pump is characterized by comprising a water inlet pipeline, a water outlet pipeline and at least one diaphragm pump module, wherein the water inlet pipeline and the water outlet pipeline are arranged side by side on the same horizontal height; the axis of inlet channel and outlet conduit is the straight line and is parallel to each other, and every diaphragm pump module includes two diaphragm pumps, and two diaphragm pumps symmetry set up the upper and lower both sides at inlet channel and outlet conduit, wherein:
each diaphragm pump comprises a pump body and a motor; a water inlet cavity and a water outlet cavity which are mutually separated are arranged in each pump body; diaphragm sheets are arranged on the front end face and the rear end face of the pump body, a pump cover is arranged on the outer side of the diaphragm sheet, and a working cavity is formed between the pump cover and the diaphragm sheet; the water inlet pipeline is communicated with the water inlet cavity, a water inlet valve enabling the water inlet cavity to be communicated with the working cavity in a one-way mode is arranged on the diaphragm, a water outlet valve enabling the working cavity to be communicated with the water outlet cavity in a one-way mode is arranged on the diaphragm, and the water outlet cavity is communicated with the water outlet pipeline;
the pump is characterized in that a connecting rod is arranged in the pump body, an output shaft of the motor is provided with an eccentric wheel, the eccentric wheel is positioned in a central hole of the connecting rod, the front end and the rear end of the connecting rod are respectively connected with diaphragm sheets at the front end and the rear end of the pump body, and the output shaft of the motor drives the diaphragm sheets to reciprocate back and forth through the eccentric wheel and the connecting rod.
2. The multi-core diaphragm pump of claim 1 wherein the inlet valve comprises an inlet valve seat, an inlet valve spool is disposed within the inlet valve seat, and an inlet valve spring is disposed between the inlet valve spool and the pump cover; the water outlet valve comprises a water outlet valve seat, a water outlet valve core is arranged in the water outlet valve seat, and a water outlet valve spring is arranged between the water outlet valve core and the connecting seat in the water outlet cavity.
3. The multi-core diaphragm pump according to claim 1, wherein connecting columns are arranged at the front end and the rear end of the connecting rod, the tail ends of the connecting columns are in inverted cone structures, connecting holes are formed in the diaphragm sheets, and the shapes of the inner walls of the connecting holes are matched with the shapes of the connecting columns.
4. The multi-core diaphragm pump according to claim 1, wherein the inlet channel communicates with the inlet chamber through an inlet opening and the outlet chamber communicates with the outlet channel through an outlet opening; the eccentric wheel is provided with a bearing, and an output shaft of the motor drives the diaphragm to reciprocate back and forth through the eccentric wheel, the bearing and the connecting rod.
5. The multi-core diaphragm pump of claim 1 wherein the motor of each diaphragm pump is controlled by a switch; or, the motor of one diaphragm pump module is controlled by a switch; or the motors of all the diaphragm pumps positioned on the upper sides of the water inlet pipeline and the water outlet pipeline are controlled by one switch, and the motors of all the diaphragm pumps positioned on the lower sides of the water inlet pipeline and the water outlet pipeline are controlled by one switch.
6. The multi-core diaphragm pump of any of claims 1-5, wherein when a plurality of diaphragm pump modules are included, the plurality of diaphragm pump modules are horizontally aligned along the inlet and outlet conduits.
7. The multi-core diaphragm pump of claim 6, further comprising an over-pressure power-off device disposed on the outlet conduit; the overpressure power-off device comprises a pressure reducing pad, a first spring sleeve and a first pressure limiting spring which are sequentially arranged from bottom to top, the water outlet pipeline is communicated with the lower portion of the pressure reducing pad through a pressure limiting hole, the upper end of the first spring sleeve is of a boss structure, a contact of a pressure limiting switch is located above the boss structure, and the motor is controlled by the pressure limiting switch.
8. The multi-core diaphragm pump according to claim 7, wherein a first pressure reducing ring is arranged on the periphery of the first spring sleeve, a first spring seat is arranged above the first pressure limiting spring, and a first pressure regulating screw is arranged above the first spring seat.
9. The multi-core diaphragm pump of claim 6, further comprising an overpressure overflow device disposed on the outlet conduit; the overpressure overflow device comprises a sealing ring, a sealing gasket, a second spring sleeve and a second pressure limiting spring which are sequentially arranged from bottom to top, the water outlet pipeline is communicated with the inside of the sealing ring through an overflow hole, a backflow hole is formed in the outer portion of the sealing ring, and the backflow hole is communicated with the water inlet pipeline.
10. The multi-core diaphragm pump according to claim 9, wherein a second pressure reducing ring is disposed on the outer periphery of the second spring housing, a second spring seat is disposed above the second pressure limiting spring, and a second pressure regulating screw is disposed above the second spring seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921182960.9U CN210686244U (en) | 2019-07-25 | 2019-07-25 | Multi-core diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921182960.9U CN210686244U (en) | 2019-07-25 | 2019-07-25 | Multi-core diaphragm pump |
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| Publication Number | Publication Date |
|---|---|
| CN210686244U true CN210686244U (en) | 2020-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921182960.9U Active CN210686244U (en) | 2019-07-25 | 2019-07-25 | Multi-core diaphragm pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113757087A (en) * | 2021-09-07 | 2021-12-07 | 深圳华星恒泰泵阀有限公司 | Diaphragm pump with backflow structure |
| CN116538058A (en) * | 2023-06-06 | 2023-08-04 | 江苏大学流体机械温岭研究院 | Four-phase diaphragm pump |
-
2019
- 2019-07-25 CN CN201921182960.9U patent/CN210686244U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113757087A (en) * | 2021-09-07 | 2021-12-07 | 深圳华星恒泰泵阀有限公司 | Diaphragm pump with backflow structure |
| CN116538058A (en) * | 2023-06-06 | 2023-08-04 | 江苏大学流体机械温岭研究院 | Four-phase diaphragm pump |
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