A synchronous motor diaphragm pump

Abstract

This utility model discloses a synchronous motor diaphragm pump, including a bracket, a synchronous motor assembly, and a pump assembly. The bracket is fixedly installed and is generally square in shape. The transmission assembly includes a piston, a power cam, and a linkage cam. The power cam is located at the power output end of the synchronous motor assembly. One end of the piston is connected to the power input end of the pump assembly, and the other end of the piston is hinged to the power cam via the linkage cam. During operation of the synchronous motor assembly, the piston push rod is limited in the rotational direction, eliminating the resulting rotational angle in the rotation of the transmission chain. The piston as a whole reciprocates, thereby driving the pump assembly. The synchronous motor assembly, combined with the pump assembly, eliminates the circumferential force generated by the rotation of the motor output shaft through the rotational link of the transmission assembly, extending the overall service life of the pump. Furthermore, the synchronous motor operates at a relatively low speed, and the reciprocating piston of the transmission assembly provides stable output, extending the life of the diaphragm of the diaphragm pump.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm pump equipment, specifically to a synchronous motor diaphragm pump. Background Technology

[0002] Electric miniature diaphragm pumps are widely used in water industry, agriculture, medical, automotive, shipbuilding and other industries. They use the rotation of a motor to drive a transmission device, which causes the diaphragm to generate piston-like transmission. The piston-like movement of the diaphragm compresses the volume inside the diaphragm cavity to achieve the function of pumping liquid.

[0003] Currently, most products on the market emphasize high quality and low price, requiring low cost and multiple functions. Existing motor structures operate at high speeds, making them unsuitable for high-viscosity liquids such as laundry detergent and dishwashing liquid. Furthermore, the piston seals in existing synchronous motors, combined with piston pump heads, are prone to deformation in complex solutions, reducing their lifespan. Additionally, the reciprocating friction of the piston seals within the piston cylinder causes rapid damage, easily leading to solution leakage. Utility Model Content

[0004] According to one aspect of the present invention, a synchronous motor diaphragm pump is provided, comprising:

[0005] Bracket, fixed installation;

[0006] The synchronous motor assembly is located on one side of the bracket;

[0007] The pump assembly is mounted on a bracket and located on the adjacent side of the synchronous motor assembly;

[0008] The transmission assembly is mounted on the bracket and is located between the synchronous motor assembly and the pump assembly. The synchronous motor assembly is poweredly connected to the pump assembly through the transmission assembly.

[0009] The transmission assembly includes a piston, a power cam, and a linkage cam. The power cam is located at the power output end of the synchronous motor assembly. One end of the piston is connected to the power input end of the pump assembly, and the other end of the piston is hinged to the power cam via the linkage cam.

[0010] In the synchronous motor diaphragm pump provided in this utility model, during the operation of the synchronous motor assembly, the piston push rod is limited in the rotational direction, eliminating the resulting rotational angle in the rotation of the transmission chain; the piston as a whole performs reciprocating motion, thereby driving the pump assembly to work. The synchronous motor assembly, combined with the pump assembly, eliminates the circumferential force generated by the rotation of the motor output shaft through the rotational link of the transmission assembly, extending the overall service life of the pump; moreover, the synchronous motor operates at a relatively low speed, and the stable output of the piston reciprocating motion in the transmission assembly extends the life of the diaphragm of the diaphragm pump.

[0011] In some embodiments, the bracket is provided with an installation cavity, and the installation cavity is provided with a limiting hole; the power output end of the synchronous motor assembly is embedded in the installation cavity, the piston is movably disposed in the limiting hole, and the power cam and the linkage cam are both located in the installation cavity.

[0012] Therefore, the transmission components are integrated and installed in the mounting cavity.

[0013] In some embodiments, the piston includes a push plate and a sliding rod. The sliding rod is movably disposed in a limiting hole, and the push plate is disposed at one end of the sliding rod and connected to the power input end of the pump assembly. The other end of the sliding rod is provided with a first hinge hole, which is hinged to the eccentric end of the linkage cam.

[0014] Thus, the piston is composed of the above structure, and the sliding rod connects with the linkage cam through the first hinge hole, thereby receiving the power input from the linkage cam.

[0015] In some embodiments, the linkage cam includes a bearing, a rotating ring, and an eccentric block. The rotating ring is mounted on the eccentric end of the power cam via the bearing, and the eccentric block is located at the edge of the rotating ring. The eccentric block is hinged to the sliding rod.

[0016] Therefore, the linkage cam is composed of the above structure, with the rotating ring hinged to the bearing, and the eccentric block outputs power to the piston.

[0017] In some embodiments, the power cam includes a wheel body and a hinge pin. The wheel body is fixed to the power output end of the synchronous motor assembly, and the hinge pin is located on the upper end face of the wheel body and at an eccentric position of the wheel body.

[0018] Therefore, the power cam is composed of the above structure, with the main body fixedly connected to the synchronous motor assembly, and the power is output to the linkage cam by a hinge column.

[0019] In some embodiments, the pump assembly includes a panel, a middle plate, and a diaphragm. The panel is fixed to one side of the bracket and has a preload pointing in the direction of the bracket. The panel clamps the middle plate and the diaphragm between the panel and the bracket.

[0020] Therefore, the pump assembly consists of the above structure, and the middle plate and diaphragm are installed using pre-tightening force, so that the middle plate and diaphragm are installed on the bracket.

[0021] In some embodiments, the panel is provided with a water outlet and a water inlet, and a pump chamber is formed between the panel and the middle plate. The water outlet and the water inlet are connected to the pump chamber. The water outlet is provided with a first umbrella valve, and the water inlet is provided with a second umbrella valve.

[0022] Thus, the inlet and outlet nozzles serve as the liquid inlet and outlet for the pump body, and the pump chamber connects the inlet and outlet nozzles; under the operation of the diaphragm, the liquid enters the pump chamber from the inlet nozzle and then exits from the outlet nozzle.

[0023] In some embodiments, a piston chamber is formed between the support and the diaphragm, with one end of the piston located inside the piston chamber.

[0024] As a result, a part of the piston reciprocates within the piston chamber, driving the diaphragm.

[0025] In some embodiments, the pump assembly further includes a pressure plate disposed on the end face of the diaphragm away from the piston, and the pressure plate is provided with bolts that penetrate the diaphragm and connect to the piston.

[0026] Thus, the diaphragm is connected to the piston via a pressure plate.

[0027] In the synchronous motor diaphragm pump of this invention, the multi-stage chain-driven transmission assembly, compared to the traditional integrated transmission piston rod, allows the rotational force generated by the motor rotation to be transmitted to the piston. This not only increases energy loss but also increases the piston swing angle, severely reducing piston lifespan, and also increases product vibration and noise. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of a synchronous motor diaphragm pump according to one embodiment of the present invention.

[0029] Figure 2 for Figure 1 The diagram shows a three-dimensional structural representation of a synchronous motor diaphragm pump in an explosive state.

[0030] Figure 3 for Figure 1 The diagram shown is a front view of a synchronous motor diaphragm pump.

[0031] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure along the AA direction.

[0032] The following numbers are used in the diagram: 100-bracket, 101-mounting cavity, 102-limiting hole, 200-synchronous motor assembly, 300-pump assembly, 310-panel, 320-middle plate, 330-diaphragm, 340-outlet, 350-inlet, 360-first umbrella valve, 370-second umbrella valve, 380-pressure plate, 381-bolt, 400-transmission assembly, 410-piston, 411-push plate, 412-sliding rod, 413-first hinge hole, 420-power cam, 421-bearing, 422-rotating ring, 423-eccentric block, 430-linkage cam, 431-main body, 432-hinge column, a-pump chamber, b-piston chamber. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings.

[0034] Figure 1-2 This illustration schematically depicts a synchronous motor diaphragm pump according to one embodiment of the present invention. The synchronous motor diaphragm pump includes a support 100, a synchronous motor assembly 200, and a pump assembly 300. The support 100 is fixedly installed and is generally square in shape. The synchronous motor assembly 200 is located on one side of the support 100, specifically on the lower side of the support 100. The pump assembly 300 is mounted on the support 100 and located adjacent to the synchronous motor assembly 200, specifically on the left side of the support 100. A transmission assembly 400 is mounted on the support 100 and located between the synchronous motor assembly 200 and the pump assembly 300. The synchronous motor assembly 200 is poweredly connected to the pump assembly 300 through the transmission assembly 400.

[0035] The transmission assembly 400 includes a piston 410, a power cam 420, and a linkage cam 430. The power cam 420 is located at the power output end of the synchronous motor assembly 200. One end of the piston 410 is connected to the power input end of the pump assembly 300, and the other end of the piston 410 is hinged to the power cam 420 through the linkage cam 430.

[0036] During the operation of the synchronous motor assembly 200, the piston 410 push rod is limited in the direction of rotation, eliminating the resulting rotational angle in the rotation of the transmission chain; the piston 410 as a whole reciprocates, thereby driving the pump assembly 300. The synchronous motor assembly 200, in conjunction with the pump assembly 300, eliminates the circumferential force generated by the rotation of the motor output shaft through the rotational link of the transmission assembly 400, extending the overall service life of the pump. Furthermore, the relatively low speed of the synchronous motor and the stable output of the piston 410 in the transmission assembly 400, combined with the reciprocating motion, extend the life of the diaphragm 330 of the diaphragm pump.

[0037] The bracket 100 has a mounting cavity 101, and the mounting cavity 101 has a limiting hole 102. The power output end of the synchronous motor assembly 200 is embedded in the mounting cavity 101, the piston 410 is movably disposed in the limiting hole 102, and the power cam 420 and the linkage cam 430 are both located in the mounting cavity 101. The transmission assembly 400 is integrated and installed in the mounting cavity 101.

[0038] In some embodiments, the piston 410 includes a push plate 411 and a sliding rod 412. The sliding rod 412 is movably disposed in the limiting hole 102. The push plate 411 is disposed at one end of the sliding rod 412 and is connected to the power input end of the pump assembly 300. The other end of the sliding rod 412 is provided with a first hinge hole 413, which is hinged to the eccentric end of the linkage cam 430. The piston 410 is composed of the above structure, and the sliding rod 412 interacts with the linkage cam 430 through the first hinge hole 413, thereby receiving the power input from the linkage cam 430.

[0039] In some embodiments, the linkage cam 430 includes a bearing 421, a rotating ring 422, and an eccentric block 423. The rotating ring 422 is mounted on the eccentric end of the power cam 420 via the bearing 421. The eccentric block 423 is located at the edge of the rotating ring 422 and is hinged to the sliding rod 412. The linkage cam 430 consists of the above structure, with the rotating ring 422 hinged to the bearing 421, and the eccentric block 423 outputting power to the piston 410.

[0040] In some embodiments, the power cam 420 includes a wheel body 431 and a hinge pin 432. The wheel body 431 is fixed to the power output end of the synchronous motor assembly 200, and the hinge pin 432 is located on the upper end face of the wheel body 431 and at an eccentric position. The power cam 420 is composed of the above structure, with the body 431 fixedly connected to the synchronous motor assembly 200, and the hinge pin 432 outputting power to the linkage cam 430.

[0041] In some embodiments, the pump assembly 300 includes a panel 310, a middle plate 320, and a diaphragm 330. The panel 310 is fixed to one side of the bracket 100 and is provided with a preload pointing towards the bracket 100. The panel 310 clamps the middle plate 320 and the diaphragm 330 between the panel 310 and the bracket 100. The pump assembly 300, composed of the above structure, uses a preload to install the middle plate 320 and the diaphragm 330 onto the bracket 100. The diaphragm 330 of the pump assembly 300 is protected against corrosion and can adapt to various solutions.

[0042] In some embodiments, the panel 310 is provided with an outlet 340 and an inlet 350. A pump chamber a is formed between the panel 310 and the middle plate 320. The outlet 340 and the inlet 350 are connected to the pump chamber a. The outlet 340 is provided with a first umbrella valve 360, and the inlet 350 is provided with a second umbrella valve 370. The inlet 350 and the outlet 340 serve as the liquid inlet and outlet of the pump body. The pump chamber a connects the inlet 350 and the outlet 340. Under the operation of the diaphragm 330, the liquid enters the pump chamber a from the inlet 350 and is then output from the outlet 340.

[0043] In some embodiments, a piston 410 chamber is formed between the support 100 and the diaphragm 330, with one end of the piston 410 located within the piston 410 chamber. A portion of the piston 410 reciprocates within the piston 410 chamber, driving the diaphragm 330.

[0044] In some embodiments, the pump assembly 300 further includes a pressure plate 380 disposed on the end face of the diaphragm 330 away from the piston 410, and the pressure plate 380 is provided with bolts 381 that penetrate the diaphragm 330 and connect it to the piston 410. The diaphragm 330 and the piston 410 are connected by the pressure plate 380.

[0045] In the synchronous motor diaphragm pump of this invention, the multi-stage chain-driven transmission component 400, compared to the traditional integrated transmission piston 410 rod, allows the rotational force generated by the motor rotation to be transmitted to the piston 410. This not only increases energy loss but also increases the swing angle of the piston 410, severely reducing the lifespan of the piston 410. It also increases the vibration and noise of the product.

[0046] During the operation of this synchronous motor diaphragm pump:

[0047] The output shaft of the synchronous motor assembly 200 rotates, the transmission assembly 400 receives the power and transmits it to the pump assembly 300. The power cam 420 rotates, and the rotating ring 422 is fixed on the power cam 420. The rotating ring 422 receives the eccentric force of the power cam 420 and inputs it back into the piston 410 through the eccentric block 423. Since the piston 410 push rod is limited in the direction of rotation, the rotation angle generated during the synchronous motor assembly 200 is eliminated in the rotation of the hinge chain structure. The sliding rod 412 drives the push plate 411 to reciprocate. The pump assembly 300 is equipped with a first umbrella valve 360 ​​and a second umbrella valve to control the inlet and outlet. When the piston 410 chamber increases, the air pressure inside the chamber decreases, and the external atmospheric pressure opens the umbrella valve controlling the inlet and outlet, filling the piston 410 chamber with air. When the piston 410 is compressed, the pressure inside the chamber increases, the inlet valve closes, the outlet valve is opened, and the medium in pump chamber a is pumped out.

[0048] The above are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A synchronous motor diaphragm pump, characterized in that, include Bracket (100), fixed installation; A synchronous motor assembly (200) is located on one side of the bracket (100); The pump assembly (300) is mounted on the bracket (100) and located on the adjacent side of the synchronous motor assembly (200); A transmission assembly (400) is mounted on a bracket (100). The transmission assembly (400) is located between the synchronous motor assembly (200) and the pump assembly (300). The synchronous motor assembly (200) is poweredly connected to the pump assembly (300) through the transmission assembly (400). The transmission assembly (400) includes a piston (410), a power cam (420), and a linkage cam (430). The power cam (420) is located at the power output end of the synchronous motor assembly (200). One end of the piston (410) is connected to the power input end of the pump assembly (300), and the other end of the piston (410) is hinged to the power cam (420) through the linkage cam (430).

2. The synchronous motor diaphragm pump according to claim 1, characterized in that, The bracket (100) is provided with an installation cavity (101), and the installation cavity (101) is provided with a limiting hole (102); the power output end of the synchronous motor assembly (200) is embedded in the installation cavity (101), the piston (410) is movably provided in the limiting hole (102), and the power cam (420) and the linkage cam (430) are both located in the installation cavity (101).

3. The synchronous motor diaphragm pump according to claim 2, characterized in that, The piston (410) includes a push plate (411) and a sliding rod (412). The sliding rod (412) is movably disposed in the limiting hole (102). The push plate (411) is disposed at one end of the sliding rod (412) and is connected to the power input end of the pump assembly (300). The other end of the sliding rod (412) is provided with a first hinge hole (413), which is hinged to the eccentric end of the linkage cam (430).

4. The synchronous motor diaphragm pump according to claim 2, characterized in that, The linkage cam (430) includes a bearing (421), a rotating ring (422), and an eccentric block (423). The rotating ring (422) is mounted on the eccentric end of the power cam (420) via the bearing (421). The eccentric block (423) is located at the edge of the rotating ring (422) and is hinged to the sliding rod (412).

5. The synchronous motor diaphragm pump according to claim 2, characterized in that, The power cam (420) includes a wheel body (431) and a hinge column (432). The wheel body (431) is fixed to the power output end of the synchronous motor assembly (200). The hinge column (432) is located on the upper end face of the wheel body (431) and is located at an eccentric position of the wheel body (431).

6. A synchronous motor diaphragm pump according to any one of claims 1-5, characterized in that, The pump assembly (300) includes a panel (310), a middle plate (320), and a diaphragm (330). The panel (310) is fixed to one side of the bracket (100). The panel (310) is provided with a preload pointing in the direction of the bracket (100). The panel (310) clamps the middle plate (320) and the diaphragm (330) between the panel (310) and the bracket (100).

7. A synchronous motor diaphragm pump according to claim 6, characterized in that, The panel (310) is provided with a water outlet (340) and a water inlet (350). A pump chamber (a) is formed between the panel (310) and the middle plate (320). The water outlet (340) and the water inlet (350) are connected to the pump chamber (a). The water outlet (340) is provided with a first umbrella valve (360), and the water inlet (350) is provided with a second umbrella valve (370).

8. A synchronous motor diaphragm pump according to claim 6, characterized in that, A piston (410) chamber is formed between the support (100) and the diaphragm (330), with one end of the piston (410) located inside the piston (410) chamber.

9. A synchronous motor diaphragm pump according to claim 6, characterized in that, The pump assembly (300) further includes a pressure plate (380) disposed on the end face of the diaphragm (330) away from the piston (410), and the pressure plate (380) is provided with a bolt (381) that penetrates the diaphragm (330) and connects to the piston (410).

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