Large-flux bidirectional non-return miniature water pump

Abstract

The utility model discloses a large-flux bidirectional non-return miniature water pump, which relates to the technical field of water pump equipment and comprises a water pumping component and a non-return component. The non-return assembly comprises a shell, a spring and a diaphragm, a water inlet cavity, a valve cavity and a water outlet cavity are formed in the shell, an opening is formed in the top of the valve cavity, the diaphragm fixedly covers the opening, a valve body is fixedly arranged in the middle of the diaphragm, and the lower end of the valve body abuts against the water inlet end of the water outlet cavity through the spring. Gas or liquid in the water inlet cavity is pumped into the valve cavity through the water pumping assembly. According to the water pump, water pumping is achieved, and meanwhile liquid backflow can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump equipment, in particular to a large-flow bidirectional check micro water pump. Background Art

[0002] The main function of a pump is to pump liquid from one container to another, so as to facilitate the treatment of the liquid. When there is a hydraulic difference in both containers and they are interconnected, the pump needs to have the function of preventing liquid backflow to avoid the liquid in the two containers flowing back through the pump and causing mutual contamination; however, the water pumps that work by rotating blades or centrifugal impellers on the market do not have the function of preventing liquid backflow. For example, a micro centrifugal pump with arc blades disclosed in Chinese Utility Model CN214424711U. In this solution, the motor assembly is started to drive the outer rotor to rotate, and the inner rotor assembly and the impeller are driven to rotate synchronously by magnetic force. The fluid enters the upper sealed space from the water inlet, flows into the middle of the impeller, and is centrifuged to the outside of the impeller by the rotation of the blades. When the fluid is about to reach the water outlet 4 during the flow in the cavity, part of the fluid between the two blades flows out and flows out from the water outlet; when the pump stops working, the liquid is likely to flow back through the middle of the impeller, causing water source pollution. Under this background, the applicant is committed to researching a large-flow bidirectional check micro water pump to realize the prevention of liquid backflow while pumping water. Summary of the Invention

[0003] The purpose of the utility model is to realize the prevention of liquid backflow while pumping water.

[0004] In order to achieve the above purpose, the technical solutions adopted by the utility model are as follows:

[0005] A large-flow bidirectional check micro water pump includes a water pumping component and a check component;

[0006] The check component includes a housing, a spring and a diaphragm. An inlet cavity, a valve cavity and an outlet cavity are formed in the housing. An opening is formed at the top of the valve cavity. The diaphragm is fixedly covered at the opening, and a valve body is fixedly arranged in the middle of the diaphragm. The lower end of the valve body is pressed against the water inlet end of the outlet cavity by the spring. The gas or liquid in the inlet cavity is pumped into the valve cavity through the water pumping component.

[0007] Further, the check component further includes a top cover. The top cover is fixedly covered at the upper end of the housing. The diaphragm is located between the top cover and the housing. The spring is compressed between the valve body and the top cover.

[0008] Further, a water inlet pipe and a water outlet pipe are arranged on the top cover. The water inlet pipe is communicated with the inlet cavity, and the water outlet pipe is communicated with the outlet cavity.

[0009] Further, the water pumping assembly includes a driving mechanism, a swing frame, a leather cup, a valve plate, an umbrella stud, and a valve piece. The valve plate is fixedly arranged at the lower end of the housing. The valve plate is provided with a water suction port and a water pressure port. The water inlet cavity is communicated with the water suction port, and the water outlet cavity is communicated with the water pressure port. The leather cup covers the lower ends of both the water suction port and the water pressure port at the same time. The umbrella end of the umbrella stud blocks the lower end of the water suction port. The valve piece blocks the upper end of the water pressure port. The swing frame is fixedly arranged at the lower end of the leather cup. The driving mechanism drives the swing frame to perform eccentric rotation.

[0010] Further, the water pumping assembly further includes a cylinder block. The cylinder block is fixedly arranged at the lower end of the valve plate. The leather cup and the swing frame are both located inside the cylinder block.

[0011] Further, a fitting is fixedly arranged on the outer side of the cylinder block.

[0012] Further, the driving mechanism includes a motor, an eccentric wheel, a steel ball, and a steel pin. The motor drives the eccentric wheel to rotate. An inclined groove is provided at the upper end of the eccentric wheel. The inclined groove is located on the side of the driving shaft of the motor. The steel ball is located at the bottom end of the inclined groove. The upper end of the steel pin is fixed to the lower end of the swing frame, and the lower end of the steel pin is inserted into the inclined groove.

[0013] Further, a sleeve hole is provided on the swing frame. The lower end of the leather cup is inserted into the sleeve hole.

[0014] Further, a film removal hole is provided on the housing. The film removal hole is internally communicated with the water outlet cavity, and a plug is plugged at the film removal hole.

[0015] The beneficial effects of the present utility model are as follows: After connecting the water source to the water inlet cavity, high-pressure water flows into the water inlet cavity. Start the water pumping assembly. The water pumping assembly pumps the gas or liquid in the water inlet cavity to the valve cavity. As the water volume in the valve cavity increases, the water pressure in the valve cavity rises. When the thrust of the water pressure on the diaphragm is greater than the elastic force of the spring, under the action of the high water pressure, the valve body on the diaphragm is pushed upward away from the water inlet end of the water outlet cavity. At this time, the water in the valve cavity flows into the water outlet cavity and then flows out through the water outlet cavity, thereby realizing the function of pumping water. When the water pumping assembly stops working, no more water enters the valve cavity, and the water pressure decreases. When the thrust of the water pressure on the diaphragm is less than the elastic force of the spring, the spring pushes the valve body against the water inlet end of the water outlet cavity to prevent the water in the valve cavity from flowing into the water outlet cavity, thereby preventing the water in the water outlet cavity from flowing back into the valve cavity, so that the present utility model realizes the function of preventing liquid backflow. Description of the Drawings

[0016] Figure 1 is one of the overall structural schematic diagrams of the present utility model;

[0017] Figure 2 is the other overall structural schematic diagram of the present utility model;

[0018] Figure 3It is an exploded view of the overall structure of the present utility model;

[0019] Figure 4 It is the third schematic diagram of the overall structure of the present utility model;

[0020] Figure 5 It is Figure 4 The cross-sectional view at A-A in

[0021] The reference numerals are:

[0022] The water pump assembly 1, the driving mechanism 11, the swing frame 12, the leather cup 13, the valve plate 14, the umbrella nail 15, the valve piece 16, the cylinder block 17,

[0023] The check valve assembly 2, the housing 21, the water inlet cavity 211, the valve cavity 212, the water outlet cavity 213, the plug 214, the spring 22, the diaphragm 23, the valve body 231, the top cover 24, the water inlet pipe 241, the water outlet pipe 242. Specific embodiments

[0024] The present utility model will be further described below in conjunction with the accompanying drawings.

[0025] Such as Figures 1 to 5 shown, a large-flux bidirectional check micro water pump includes a water pump assembly 1 and a check valve assembly 2.

[0026] The check valve assembly 2 includes a housing 21, a spring 22, a diaphragm 23, and a top cover 24. An inlet cavity 211, a valve cavity 212, and an outlet cavity 213 are formed in the housing 21. An opening is formed at the top of the valve cavity 212. The diaphragm 23 is fixedly covered at the opening, and a valve body 231 is fixedly arranged in the middle of the diaphragm 23.

[0027] The lower end of the valve body 231 is pressed against the water inlet end of the outlet cavity 213 by the spring 22. The more specific structure is: the top cover 24 is fixedly covered on the upper end of the housing 21. The diaphragm 23 is located between the top cover 24 and the housing 21. The spring 22 is compressed between the valve body 231 and the top cover 24. Under the thrust of the spring 22, the valve body 231 abuts against the water inlet end of the outlet cavity 213, thereby preventing the water in the valve cavity 212 from flowing into the outlet cavity 213.

[0028] When the thrust of the water pressure on the diaphragm 23 is greater than the elastic force of the spring 22, under the action of high water pressure, the valve body 231 on the diaphragm 23 is pushed upward away from the water inlet end of the water outlet cavity 213. At this time, the water in the valve cavity 212 flows into the water outlet cavity 213 and then flows out through the water outlet cavity 213. When the water pump assembly 1 stops working, no more water enters the valve cavity 212 and the water pressure decreases. When the thrust of the water pressure on the diaphragm 23 is less than the elastic force of the spring 22, the spring 22 pushes the valve body 231 against the water inlet end of the water outlet cavity 213, preventing the water in the valve cavity 212 from flowing into the water outlet cavity 213, thereby preventing the water in the water outlet cavity 213 from flowing back into the valve cavity 212, so that the utility model realizes the function of preventing liquid backflow.

[0029] The top cover 24 is provided with a water inlet pipe 241 and a water outlet pipe 242. The water inlet pipe 241 is communicated with the water inlet cavity 211, and the water outlet pipe 242 is communicated with the water outlet cavity 213.

[0030] The gas or liquid in the water inlet cavity 211 is pumped into the valve cavity 212 by the water pump assembly 1.

[0031] The water pump assembly 1 includes a driving mechanism 11, a swing frame 12, a leather cup 13, a valve plate 14, an umbrella stud 15, a valve piece 16, and a cylinder block 17. The valve plate 14 is fixedly arranged at the lower end of the housing 21. The valve plate 14 is provided with a water suction port and a water pressure port. The water inlet cavity 211 is communicated with the water suction port, and the water outlet cavity 213 is communicated with the water pressure port. The leather cup 13 covers the lower ends of both the water suction port and the water pressure port at the same time. The umbrella end of the umbrella stud 15 blocks the lower end of the water suction port, and the valve piece 16 blocks the upper end of the water pressure port. The swing frame 12 is fixedly arranged at the lower end of the leather cup 13, and the driving mechanism 11 drives the swing frame 12 to perform eccentric rotation.

[0032] Both the umbrella stud 15 and the valve piece 16 act as check valves. Among them, the umbrella stud 15 allows the liquid to flow only from the water inlet cavity 211 to the inside of the leather cup 13, and the valve piece 16 allows the liquid to flow only from the inside of the leather cup 13 to the inside of the valve cavity 212. The driving mechanism 11 drives the swing frame 12 to perform eccentric rotation. When the swing frame 12 squeezes the leather cup 13 upward, the liquid inside the leather cup 13 is squeezed into the valve cavity 212 through the valve piece 16. When the swing frame 12 pulls the leather cup 13 downward, the liquid inside the water inlet cavity 211 is pressed into the leather cup 13.

[0033] The cylinder block 17 is fixedly arranged at the lower end of the valve plate 14. The leather cup 13 and the swing frame 12 are both located inside the cylinder block 17. The utility model is provided with five leather cups 13, thus realizing the function of large-flux water pumping. An assembly part is also fixedly arranged on the outer side of the cylinder block 17. A sleeve hole is provided on the swing frame 12, and the lower end of the leather cup 13 is inserted into the sleeve hole.

[0034] The driving mechanism 11 includes a motor, an eccentric wheel, steel balls and steel needles. The motor drives the eccentric wheel to rotate. An inclined groove is formed at the upper end of the eccentric wheel, and the inclined groove is located on the side of the driving shaft of the motor. The steel balls are located at the bottom end of the inclined groove. The upper end of the steel needle is fixed to the lower end of the swing frame 12, and the lower end of the steel needle is inserted into the inclined groove.

[0035] A film removal hole is formed in the housing 21. The film removal hole is internally communicated with the water outlet cavity 213, and a plug 214 is plugged at the film removal hole.

[0036] The working principle of the present utility model is as follows: After connecting the water source to the water inlet pipe 241 and entering the water inlet cavity 211, high-pressure water flows into the water inlet cavity 211. The water pumping assembly 1 is started, and the water pumping assembly 1 pumps the gas or liquid in the water inlet cavity 211 into the valve cavity 212. As the water volume in the valve cavity 212 increases, the water pressure in the valve cavity 212 rises; when the thrust of the water pressure on the diaphragm 23 is greater than the elastic force of the spring 22, under the action of the high water pressure, the valve body 231 on the diaphragm 23 is pushed upward away from the water inlet end of the water outlet cavity 213. At this time, the water in the valve cavity 212 flows into the water outlet cavity 213 and finally flows out through the water outlet pipe 242.

[0037] When the water pumping assembly 1 stops working, no more water enters the valve cavity 212 and the water pressure decreases. When the thrust of the water pressure on the diaphragm 23 is less than the elastic force of the spring 22, the spring 22 pushes the valve body 231 against the water inlet end of the water outlet cavity 213 to prevent the water in the valve cavity 212 from flowing into the water outlet cavity 213, thereby preventing the water in the water outlet cavity 213 from flowing back into the valve cavity 212, so that the present utility model realizes the function of preventing liquid backflow.

[0038] The above-disclosed are only the preferred embodiments of the present utility model, and the scope of the patent protection of the present utility model cannot be limited thereby. Therefore, equivalent changes made according to the scope of the patent application of the present utility model still fall within the scope covered by the present utility model. The above does not impose any limitation on the technical scope of the present utility model. Any modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A high-throughput two-way check micro water pump, characterized in that: It includes a water pumping assembly and a check valve assembly; The check valve assembly includes a housing, a spring and a diaphragm. An inlet chamber, a valve chamber and an outlet chamber are formed in the housing. An opening is formed at the top of the valve chamber. The diaphragm is fixedly covered at the opening, and a valve body is fixedly arranged in the middle of the diaphragm. The lower end of the valve body is pressed against the water inlet end of the outlet chamber by the spring. The gas or liquid in the inlet chamber is pumped into the valve chamber through the water pumping assembly.

2. The large-flow bidirectional check micro water pump according to claim 1, characterized in that: The check valve assembly further includes a top cover. The top cover is fixedly covered at the upper end of the housing. The diaphragm is located between the top cover and the housing. The spring is compressed between the valve body and the top cover.

3. The large-flow bidirectional check micro water pump according to claim 2, characterized in that: The top cover is provided with a water inlet pipe and a water outlet pipe. The water inlet pipe is communicated with the inlet chamber, and the water outlet pipe is communicated with the outlet chamber.

4. A large-flow bidirectional check micro water pump according to claim 1, characterized in that: The water pumping assembly includes a driving mechanism, a swing frame, a leather cup, a valve plate, an umbrella stud and a valve piece. The valve plate is fixedly arranged at the lower end of the housing. A water suction port and a water pressure port are formed on the valve plate. The inlet chamber is communicated with the water suction port, and the outlet chamber is communicated with the water pressure port. The leather cup covers the lower ends of the water suction port and the water pressure port at the same time. The umbrella end of the umbrella stud blocks the lower end of the water suction port. The valve piece blocks the upper end of the water pressure port. The swing frame is fixedly arranged at the lower end of the leather cup. The driving mechanism drives the swing frame to perform eccentric rotation.

5. The large-flow bidirectional check micro water pump according to claim 4, characterized in that: The water pumping assembly further includes a cylinder body. The cylinder body is fixedly arranged at the lower end of the valve plate. The leather cup and the swing frame are both located in the cylinder body.

6. The large-flow bidirectional check micro water pump according to claim 5, characterized in that: An assembly part is also fixedly arranged on the outer side of the cylinder body.

7. A large-flow bidirectional check micro water pump according to claim 4, characterized in that: The driving mechanism includes a motor, an eccentric wheel, a steel ball and a steel needle. The motor drives the eccentric wheel to rotate. An inclined groove is formed at the upper end of the eccentric wheel. The inclined groove is located on the side of the driving shaft of the motor. The steel ball is located at the bottom end of the inclined groove. The upper end of the steel needle is fixed at the lower end of the swing frame, and the lower end of the steel needle is inserted into the inclined groove.

8. A large-flow bidirectional check micro water pump according to claim 4, characterized in that: A sleeve hole is formed on the swing frame. The lower end of the leather cup passes through the sleeve hole.

9. A large-flow bidirectional check micro water pump according to any one of claims 1-8, characterized in that: A film removal hole is formed on the housing. The film removal hole is communicated with the inside of the outlet chamber, and a plug is plugged at the film removal hole.

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