Miniature high-flow diaphragm double-head pump

Abstract

The utility model relates to a miniature high-flow diaphragm double-head pump, and belongs to the technical field of diaphragm pumps, the miniature high-flow diaphragm double-head pump comprises a first pump head and a driving mechanism connected with the first pump head and used for driving the first pump head to work, the driving mechanism comprises a box body, a motor, an eccentric wheel and a first connecting rod, the motor is fixed on the box body, and the eccentric wheel is fixed on the first connecting rod; the eccentric wheel is fixed to an output shaft of the motor, the first connecting rod is rotationally connected to the eccentric wheel and used for driving the first pump head to work, a second pump head is further connected to one side of the box body in a mirroring mode, and a second connecting rod is further rotationally connected to the eccentric wheel and used for driving the second pump head to work. The micro diaphragm pump is novel and compact in structure, the pump head is additionally arranged on an existing micro diaphragm pump in a mirroring mode, the structure is optimized and improved, one motor is used for driving the two pump heads to work, large flow can be achieved only by increasing extremely small size and cost, use is convenient, and customer requirements are greatly met.

Description

Technical Field

[0001] The present application relates to the technical field of diaphragm pumps, and in particular to a miniature large-flow diaphragm double-head pump. Background Art

[0002] At present, a large number of micro diaphragm pumps are needed in the field of industrial robots. Due to the size of the micro diaphragm pumps themselves, the flow rate is low and often cannot meet customer needs. It is often necessary to control them by using two micro diaphragm pumps. However, using two micro diaphragm pumps at the same time will result in large size and inconvenience in use.

[0003] Therefore, it is urgent to develop a diaphragm pump with increased flow rate but not too large an increase in volume. Utility Model Content

[0004] The purpose of the present application is to provide a miniature large-flow diaphragm double-head pump to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the present application provides a micro high-flow diaphragm double-head pump adopts the following technical solution:

[0006] A miniature large-flow diaphragm double-head pump comprises a first pump head and a driving mechanism connected to the first pump head and used to drive the first pump head to work, the driving mechanism comprises a housing, a motor, an eccentric wheel and a first connecting rod, the motor is fixed to the housing, the eccentric wheel is fixed to the output shaft of the motor, the first connecting rod is rotatably connected to the eccentric wheel, the first connecting rod is used to drive the first pump head to work, a second pump head is also mirror-connected to one side of the housing, a second connecting rod is also rotatably connected to the eccentric wheel, and the second connecting rod is used to drive the second pump head to work.

[0007] The first pump head and the second pump head each include an upper pump body, a lower pump body and a diaphragm. The upper pump body is provided with a water inlet channel and a water outlet channel. The lower pump body is provided with a water inlet hole connected to the water inlet channel and a water outlet hole connected to the water outlet channel. Valve plates are respectively provided in the water inlet hole and the water outlet hole. The lower pump body has a diaphragm cavity on one side away from the upper pump body. The diaphragm is provided in the diaphragm cavity. The diaphragms on both sides are respectively fixed to the first connecting rod and the second connecting rod.

[0008] The diaphragm has an umbrella-shaped edge, and the umbrella-shaped edge is fixed between the lower pump body and the box body.

[0009] Preferably, the first connecting rod and the second connecting rod both include an integrally formed connecting sleeve, a rod body and a circular portion, the connecting sleeve is connected to the eccentric wheel, the circular portion can be fitted on the diaphragm, a pressure plate is also provided next to the circular portion, the pressure plate is fixed to the rod body by screws, and the diaphragm is provided between the circular portion and the pressure plate.

[0010] By providing the pressure plate, the diaphragm is fixed between the pressure plate and the circular portion, which can reduce the pressure on the diaphragm, thereby increasing the service life of the diaphragm.

[0011] A bearing is arranged between the connecting sleeve and the eccentric wheel.

[0012] Preferably, the motor is fixed to the box body by screws, and a fixing ring for fixing the motor is also provided between the box body and the motor. The fixing ring can enhance the fastening effect of the motor, thereby ensuring that the double-head pump can run smoothly.

[0013] To summarize, the present application includes at least one of the following beneficial technical effects: the micro-large-flow diaphragm dual-head pump has a novel and compact structure. By adding a pump head in a mirror image to the existing micro-diaphragm pump and optimizing and improving the structure, one motor is used to drive the two pump heads to work. It only increases the volume and cost very little to achieve a larger flow rate. It is more convenient to use and greatly meets customer needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0015] Figure 2 It is an exploded schematic diagram of an embodiment of the present application.

[0016] Figure 3 It is an exploded schematic diagram used to illustrate the driving mechanism in the embodiment of the present application.

[0017] Figure 4 It is a schematic diagram for illustrating the connection relationship between the second connecting rod, the pressure plate and the diaphragm in the embodiment of the present application.

[0018] Explanation of the accompanying drawings: 1. first pump head; 21. casing; 22. motor; 23. eccentric wheel; 24. first connecting rod; 25. second connecting rod; 3. second pump head; 31. upper pump body; 311. water inlet channel; 312. water outlet channel; 32. lower pump body; 33. diaphragm; 34. valve plate; 4. pressure plate; 5. fixing ring. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-4 This application is described in further detail.

[0020] The present application discloses a micro high-flow diaphragm double-head pump, referring to Figure 1-3, including a first pump head 1 and a driving mechanism connected to the first pump head 1 and used to drive the first pump head 1 to work, the driving mechanism includes a box body 21, a motor 22, an eccentric wheel 23 and a first connecting rod 24, the motor 22 is fixed on the box body 21, the eccentric wheel 23 is fixed on the output shaft of the motor 22, the first connecting rod 24 is rotatably connected to the eccentric wheel 23, the first connecting rod 24 is used to drive the first pump head 1 to work, the second pump head 3 is also mirror-connected to one side of the box body 21, the eccentric wheel 23 is also rotatably connected to the second connecting rod 25, the second connecting rod 25 is used to drive the second pump head 3 to work;

[0021] The first pump head 1 and the second pump head 3 both include an upper pump body 31, a lower pump body 32 and a diaphragm 33. The upper pump body 31 is provided with an inlet channel 311 and a water outlet channel 312. The lower pump body 32 is provided with an inlet hole connected to the inlet channel 311 and a water outlet hole connected to the outlet channel 312. Valve plates 34 are respectively provided in the inlet hole and the outlet hole. The lower pump body 32 has a membrane cavity on the side away from the upper pump body 31. The diaphragm 33 is arranged in the membrane cavity. The diaphragm sheets 33 on both sides are respectively fixed to the first connecting rod 24 and the second connecting rod 25. The diaphragm sheet 33 has an umbrella-shaped edge, which is fixed between the lower pump body 32 and the box body 21.

[0022] Reference Figure 2 and Figure 4 The first connecting rod 24 and the second connecting rod 25 both include an integrally formed connecting sleeve, a rod body and a circular portion. The connecting sleeve is connected to the eccentric wheel 23. A bearing is arranged between the connecting sleeve and the eccentric wheel 23. The circular portion can fit on the diaphragm 33. A pressure plate 4 is also arranged next to the circular portion. The pressure plate 4 is fixed to the rod body by screws. The diaphragm 33 is arranged between the circular portion and the pressure plate 4.

[0023] By providing the pressing plate 4 , the diaphragm 33 is fixed between the pressing plate 4 and the circular portion, which can reduce the pressure on the diaphragm 33 , thereby increasing the service life of the diaphragm 33 .

[0024] Reference Figure 3 and Figure 4 The motor 22 is fixed to the box body 21 by screws, and a fixing ring 5 for fixing the motor 22 is also provided between the box body 21 and the motor 22. The fixing ring 5 can enhance the fastening effect of the motor 22, thereby ensuring that the double-head pump can run smoothly.

[0025] The implementation principle of a micro high-flow diaphragm double-head pump in the embodiment of the present application is:

[0026] The motor 22 drives the eccentric wheel 23 to rotate, and the eccentric wheel 23 drives the first connecting rod 24 and the second connecting rod 25 on both sides to move. The first connecting rod 24 and the second connecting rod 25 respectively drive the diaphragm sheets 33 on both sides to reciprocate, thereby forming the suction and push-out of gas, thereby completing the liquid transportation and increasing the flow rate.

[0027] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, principle and application direction of the present application should be included in the protection scope of the present application.

Claims

1. A micro high-flow diaphragm double-head pump, comprising a first pump head (1) and a driving mechanism connected to the first pump head (1) and used to drive the first pump head (1) to work, the driving mechanism comprising a housing (21), a motor (22), an eccentric wheel (23) and a first connecting rod (24), the motor (22) being fixed to the housing (21), the eccentric wheel (23) being fixed to the output shaft of the motor (22), the first connecting rod (24) being rotatably connected to the eccentric wheel (23), the first connecting rod (24) being used to drive the first pump head (1) to work, characterized in that: A second pump head (3) is also mirror-connected to one side of the box body (21), and a second connecting rod (25) is also rotatably connected to the eccentric wheel (23), and the second connecting rod (25) is used to drive the second pump head (3) to work.

2. The micro high flow diaphragm double-head pump according to claim 1 is characterized in that: The first pump head (1) and the second pump head (3) both comprise an upper pump body (31), a lower pump body (32) and a diaphragm (33); the upper pump body (31) is provided with a water inlet channel (311) and a water outlet channel (312); the lower pump body (32) is provided with a water inlet hole connected to the water inlet channel (311) and a water outlet hole connected to the water outlet channel (312); valve plates (34) are respectively provided in the water inlet hole and the water outlet hole; the lower pump body (32) has a diaphragm cavity on a side away from the upper pump body (31); the diaphragm (33) is arranged in the diaphragm cavity; the diaphragms (33) on both sides are respectively fixed to the first connecting rod (24) and the second connecting rod (25).

3. The micro high flow diaphragm double-head pump according to claim 2 is characterized in that: The diaphragm (33) has an umbrella-shaped edge, and the umbrella-shaped edge is fixed between the lower pump body (32) and the box body (21).

4. The micro high flow diaphragm double-head pump according to claim 3 is characterized in that: The first connecting rod (24) and the second connecting rod (25) both include an integrally formed connecting sleeve, a rod body and a circular portion, wherein the connecting sleeve is connected to the eccentric wheel (23), the circular portion can be fitted on the diaphragm (33), and a pressure plate (4) is also arranged next to the circular portion, wherein the pressure plate (4) is fixed to the rod body by screws, and the diaphragm (33) is arranged between the circular portion and the pressure plate (4).

5. The micro high flow diaphragm double-head pump according to claim 4 is characterized in that: A bearing is arranged between the connecting sleeve and the eccentric wheel (23).

6. The micro high flow diaphragm double-head pump according to claim 1 is characterized in that: The motor (22) is fixed to the box (21) by means of screws, and a fixing ring (5) for fixing the motor (22) is also provided between the box (21) and the motor (22).

Images