CN210769244U

CN210769244U - Tandem type diaphragm pump

Info

Publication number: CN210769244U
Application number: CN201921701824.6U
Authority: CN
Inventors: 张瑾璟; 吴兵
Original assignee: Kamoer Fluid Technology Shanghai Co Ltd
Current assignee: Kamoer Fluid Technology Shanghai Co Ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-06-16
Anticipated expiration: 2029-10-12

Abstract

The utility model discloses a serial diaphragm pump, simple structure, convenient to use can switch over the business turn over gas end fast, and under the condition that the volume does not increase significantly, the operating pressure can realize the pressure twice of unit at the utmost, two pump bodies are symmetrically arranged on the base, the both ends of the motor organism are respectively fixedly arranged on the two pump bodies, the upper ends of the two pump bodies are both open structures, the upper ends of the pump bodies are both provided with valve lower plates, the middle parts of the valve lower plates are both provided with through holes; the upper ends of the lower valve plates are respectively provided with an upper valve plate in a matching way, and the lower valve plate, the diaphragm and the upper valve plate are matched together to form a closed working cavity; all be provided with two check valves on the valve upper plate, two check valves are reverse to be set up, the one end of check valve with the working chamber intercommunication, the other end of check valve communicate with admission line and pipeline of giving vent to anger respectively, and the admission line of one of them valve upper plate communicates through the pipeline of giving vent to anger of series connection pipe with another valve upper plate to the operating pressure of the increase pump body.

Description

Tandem type diaphragm pump

Technical Field

The utility model relates to a serial-type diaphragm pump belongs to diaphragm pump technical field.

Background

The diaphragm pump is mainly used for the transmission of liquid at present, is used for transmitting gas very much, also has partial diaphragm pump can transmit gas, but its structure is complicated, and the foremost is that business turn over gas port is fixed, can not exchange fast, brings inconvenience for practical application, and operating pressure if the increase moreover can only change the higher equipment of dress power, and the increase of volume brings very big examination for the installation environment.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes prior art exists not enough, provides a serial-type diaphragm pump, simple structure, and convenient to use can the fast switch over business turn over gas end, and under the condition that the volume is not obviously increased moreover, operating pressure can realize the pressure of unit twice the most.

In order to solve the technical problem, the utility model discloses a technical scheme be: a tandem type diaphragm pump comprises a base, motors, pump bodies, an upper valve plate and a lower valve plate, wherein the two pump bodies are symmetrically arranged on the base, the motors are double-output-shaft motors, the motors are transversely arranged, two ends of a motor body are respectively fixedly arranged on the two pump bodies, the upper ends of the two pump bodies are both of an open structure, the lower valve plate is arranged at the upper ends of the pump bodies, and a through hole is formed in the middle of the lower valve plate;

the pump body comprises a shell, an eccentric wheel, a transmission rod, a pressing plate and a diaphragm, wherein a power output shaft of the motor extends into the shell, the eccentric wheel is installed on an output shaft of the motor, the diaphragm is arranged in the lower valve plate in a matched mode and can move up and down along the inner side of the lower valve plate in a sealed mode, the pressing plate is arranged on the lower side of the diaphragm, the transmission rod is arranged on the lower side of the pressing plate, the transmission rod penetrates through a through hole of the lower valve plate and then is movably connected with the eccentric wheel, and the eccentric wheel drives the transmission rod to move so as to drive the pressing plate and;

the upper end of the lower valve plate is provided with an upper valve plate in a matching way, and the lower valve plate, the diaphragm and the upper valve plate are matched together to form a closed working cavity; all be provided with two check valves on the valve upper plate, two the check valve sets up in reverse, the one end of check valve with the working chamber intercommunication, the other end of check valve respectively with admission line and pipeline intercommunication of giving vent to anger, and one of them the admission line of valve upper plate is through series connection pipe and another the pipeline intercommunication of giving vent to anger of valve upper plate to the operating pressure of the increase pump body.

The air inlet pipe is connected with an air inlet pipe, the air outlet pipe is communicated with an air outlet grid arranged on the valve upper plate, and the inner end of the air outlet pipe is communicated with the one-way valve.

The base comprises a plurality of jack catchs, the upper end of jack catch is fixed to be set up on the pump body, the lower extreme of jack catch is provided with the shock pad.

The balance hole is formed in the lower valve plate and communicated with the inner cavity of the shell, and the balance hole is located above the motor body or arranged towards the motor body and used for heat dissipation of the motor.

The air inlet pipeline and/or the air outlet pipeline are integrally formed with the valve upper plate.

Compared with the prior art, the utility model beneficial effect who has is: the utility model discloses well check valve sets up on the valve upper plate, when needing to exchange the business turn over gas direction of air inlet and gas outlet, only need with the reverse setting of flow direction of two check valves can, under the prerequisite of unmovable equipment, only need tear open the valve upper plate and carry out reverse setting to the check valve, simple structure, convenient to use can the fast switch over business turn over gas end. Of course, the direction of the one-way valves on the two valve upper plates needs to be changed, the working pressure of the pump body can be doubled to the maximum extent on the premise of not obviously increasing the volume of the equipment, and the application range of the pump body is greatly enlarged.

Drawings

The present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of the present invention

Fig. 2 is a front view of the present invention.

Fig. 3 is a cross-sectional view a-a of fig. 2.

Fig. 4 is a schematic structural diagram of the middle valve upper plate of the present invention.

In the figure: 1 is a base, 2 is a motor, 3 is a pump body, 31 is a shell, 32 is an eccentric wheel, 33 is a transmission rod, 34 is a pressure plate, 35 is a diaphragm, 4 is an upper valve plate, 5 is a lower valve plate, 6 is a one-way valve, 7 is an air outlet grid, 8 is a balance hole, and 9 is a series pipe.

Detailed Description

As shown in fig. 1 to 4, the utility model relates to a tandem diaphragm pump, including base 1, motor 2, pump body 3, valve upper plate 4 and valve lower plate 5, two pump bodies 3 are symmetrically arranged on base 1, motor 2 is a double-output shaft motor, motor 2 is transversely arranged, and both ends of the motor 2 organism are respectively fixedly arranged on two pump bodies 3, the upper ends of two pump bodies 3 are both open structures, the upper end of pump body 3 is provided with valve lower plate 5, the middle part of valve lower plate 5 is provided with a through hole;

the pump body 3 comprises a shell 31, an eccentric wheel 32, a transmission rod 33, a pressing plate 34 and a diaphragm 35, wherein a power output shaft of the motor 2 extends into the shell 31, the eccentric wheel 32 is mounted on an output shaft of the motor 2, the diaphragm 35 is arranged in the valve lower plate 5 in a matching manner and can move up and down along the inner side of the valve lower plate 5 in a sealing manner, the pressing plate 34 is arranged on the lower side of the diaphragm 35, the transmission rod 33 is arranged on the lower side of the pressing plate 34, the transmission rod 33 penetrates through a through hole of the valve lower plate 5 and then is movably connected with the eccentric wheel 32, and the transmission rod 33 is driven by the eccentric wheel 32 to move so as to drive the pressing plate 34 and the diaphragm;

the upper ends of the lower valve plates 5 are respectively provided with an upper valve plate 4 in a matching way, and the lower valve plates 5, the diaphragm 35 and the upper valve plates 4 are matched together to form a closed working cavity; all be provided with two check valves 6 on the valve upper plate 4, two check valve 6 sets up in reverse, the one end of check valve 6 with the working chamber intercommunication, the other end of check valve 6 respectively with admission line and outlet duct intercommunication, and one of them the admission line of valve upper plate 4 is through series connection pipe 9 and another the outlet duct intercommunication of valve upper plate 4 to increase the operating pressure of the pump body 3.

The air inlet pipe is connected with an air inlet pipe, the air outlet pipe is communicated with an air outlet grid 7 arranged on the valve upper plate 4, and the inner end of the air outlet pipe is communicated with a one-way valve 6.

The base 1 comprises a plurality of jack catchs, the upper end of jack catch is fixed to be set up on the pump body 3, the lower extreme of jack catch is provided with the shock pad.

The valve lower plate 5 is provided with a balance hole 8, the balance hole 8 is communicated with the inner cavity of the shell 31, and the balance hole 8 is located above the body of the motor 2 or arranged towards the body of the motor 2 and used for heat dissipation of the motor 2.

The inlet and/or outlet ducts are integrally formed with the valve upper plate 4.

The utility model discloses a theory of operation: motor 2 drive eccentric wheel 32 rotates, and eccentric wheel 32 drives the transfer line 33 motion, drives clamp plate 34 and diaphragm 35 motion by transfer line 33, because the inboard guide effect of valve hypoplastron 5, clamp plate 34 and diaphragm 35 are under the drive of transfer line 33, up-and-down motion, and the compressed gas that two pump bodies 3 produced is through the back of 9 stacks through establishing ties, and pressure doubles (theoretically), greatly increased the operating pressure of the pump body 3, further increased the utility model discloses a working range.

The utility model discloses well check valve 6 sets up on valve upper plate 4, when needing to exchange the business turn over gas direction of air inlet and gas outlet, only need with two check valve 6 flow direction reverse set up can, under the prerequisite of unmovable equipment, only need tear open valve upper plate 4 and carry out reverse setting to check valve 6, simple structure, convenient to use can the fast switch over business turn over gas end. Of course, the direction of the check valves 6 on the two valve upper plates 4 needs to be changed, the working pressure of the pump body can be doubled to the maximum extent on the premise of not obviously increasing the volume of the equipment, and the application range of the pump body is greatly enlarged.

The utility model discloses well outer admission line and/or the pipeline of giving vent to anger communicate with outside working channel through direct quick-operation joint.

The basic principle and the main characteristics of the utility model and the advantages of the utility model have been shown and described above, and the utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the record of the description with the drawing, and the concrete connection mode of each part all adopts conventional means such as ripe bolt rivet among the prior art, welding, and machinery, part and equipment all adopt prior art, conventional model, and conventional connection mode in the prior art is adopted in addition to circuit connection, and the details are not repeated here.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A tandem diaphragm pump is characterized by comprising a base (1), motors (2), pump bodies (3), an upper valve plate (4) and a lower valve plate (5), wherein the two pump bodies (3) are symmetrically arranged on the base (1), the motors (2) are double-output-shaft motors, the motors (2) are transversely arranged, two ends of a machine body of each motor (2) are respectively and fixedly arranged on the two pump bodies (3), the upper ends of the two pump bodies (3) are both of an open structure, the upper ends of the pump bodies (3) are both provided with the lower valve plate (5), and the middle parts of the lower valve plates (5) are both provided with through holes;

the pump body (3) comprises a shell (31), an eccentric wheel (32), a transmission rod (33), a pressing plate (34) and a diaphragm (35), a power output shaft of the motor (2) extends into the shell (31), the eccentric wheel (32) is installed on an output shaft of the motor (2), the diaphragm (35) is arranged in the valve lower plate (5) in a matched mode and can move up and down along the inner side of the valve lower plate (5) in a sealed mode, the pressing plate (34) is arranged on the lower side of the diaphragm (35), the transmission rod (33) is arranged on the lower side of the pressing plate (34), penetrates through a through hole of the valve lower plate (5) and then is movably connected with the eccentric wheel (32), and the transmission rod (33) is driven by the eccentric wheel (32) to move to drive the pressing plate (34) and the diaphragm (35) to periodically move up and down along the inner side of the;

the upper ends of the lower valve plates (5) are respectively provided with an upper valve plate (4) in a matching way, and the lower valve plates (5), the diaphragm (35) and the upper valve plates (4) are matched together to form a closed working cavity; all be provided with two check valves (6) on valve upper plate (4), two check valve (6) reverse setting, the one end of check valve (6) with the working chamber intercommunication, the other end of check valve (6) respectively with admission line and the pipeline intercommunication of giving vent to anger, and one of them the admission line of valve upper plate (4) is through establishing ties pipe (9) and another the pipeline intercommunication of giving vent to anger of valve upper plate (4) to increase the operating pressure of the pump body (3).

2. A tandem diaphragm pump according to claim 1, wherein an inlet pipe is connected to the inlet pipe, the outlet pipe is connected to an outlet grill (7) provided on the valve upper plate (4), and an inner end of the outlet pipe is connected to the check valve (6).

3. A tandem diaphragm pump according to claim 1, wherein the base (1) is composed of a plurality of jaws, the upper ends of which are fixedly arranged on the pump body (3), and the lower ends of which are provided with shock absorbing pads.

4. A tandem diaphragm pump according to claim 2, wherein the valve lower plate (5) is provided with a balancing hole (8), the balancing hole (8) is communicated with the inner cavity of the housing (31), and the balancing hole (8) is located above or towards the body of the motor (2) for heat dissipation of the motor (2).

5. A tandem diaphragm pump according to claim 2, wherein said inlet and/or outlet ducts are integrated with the valve upper plate (4).