Miniature four-cylinder diaphragm pump

Abstract

The invention belongs to the field of pumps, and particularly relates to a miniature four-cylinder diaphragm pump which comprises a miniature motor, a support assembly is arranged on the upper portion of the miniature motor, a piston assembly is arranged on the upper portion of the support assembly, and a valve assembly is arranged on the upper portion of the piston assembly. The overall design of the diaphragm pump is remarkably improved in the aspects of performance, reliability and maintainability, and the requirements of the market for efficient and stable diaphragm pumps can be better met.

Description

Technical Field

[0001] The present invention belongs to the field of pumps, and particularly relates to a micro four-cylinder diaphragm pump. Background Art

[0002] Most of the common diaphragm pumps with a diameter of 12 mm on the market currently adopt a single-piston or double-piston cylinder block design, and this structure has many deficiencies. The continuity of the pumped medium is poor, and intermittent conveying problems are likely to occur, affecting production efficiency and process stability. In addition, for diaphragm pumps with a double-cylinder design, when conveying media containing particles or impurities, clogging occurs relatively frequently. Once clogging occurs, not only will the conveying process be interrupted, but it may also cause equipment damage. At the same time, the problem of valve plate sticking is also relatively common. Once the valve plate sticks, the diaphragm pump will not be able to work normally, and frequent maintenance or replacement of components is required, increasing the maintenance cost and equipment downtime. Summary of the Invention

[0003] The present invention provides a micro four-cylinder diaphragm pump for the above problems.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is A micro four-cylinder diaphragm pump includes a micro motor, a bracket assembly is arranged on the upper part of the micro motor, a piston assembly is arranged on the upper part of the bracket assembly, and a valve assembly is arranged on the upper part of the piston assembly.

[0005] Preferably, the bracket assembly includes a lower bracket, an eccentric wheel is arranged on the lower bracket, a lever shaft is arranged inside the eccentric wheel, and a crank is arranged on the upper part of the lever shaft.

[0006] Preferably, the piston assembly includes a piston bracket, and a piston is arranged inside the piston bracket.

[0007] Preferably, the valve assembly includes a valve bracket, an umbrella valve is arranged on the lower part of the valve bracket, a check valve is arranged on the upper part, a sealing piece is arranged on the upper part of the check valve, and a pump nozzle is arranged on the upper part of the sealing piece.

[0008] Preferably, the lower bracket, the piston bracket and the valve bracket are fixedly connected by reinforcing screws and fixed by buckles.

[0009] Preferably, the lower bracket is fixed on the micro motor by fixing screws.

[0010] Compared with the prior art, the advantages and positive effects of the present invention are The overall design of the novel diaphragm pump of the present invention has been significantly improved in terms of performance, reliability and maintainability, and can better meet the market demand for efficient and stable diaphragm pumps. Brief Description of the Drawings

[0011] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0012] Figure 1 It is a three-dimensional structural schematic diagram of a micro four-cylinder diaphragm pump; Figure 2 It is an exploded view of the micro four-cylinder diaphragm pump (without fixing screws); Figure 3 It is an exploded view of the micro four-cylinder diaphragm pump from top to bottom; In the above figures, 1, micro motor; 2, lower bracket; 3, eccentric wheel; 4, lever shaft; 5, crank; 6, buckle; 7, piston bracket; 8, piston; 9, umbrella valve; 10, valve bracket; 11, check valve; 12, reinforcement screw; 13, sealing sheet; 14, pump nozzle; 15, fixing screw. Specific embodiments

[0013] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0014] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0015] Embodiment 1, as Figure 1 shown, a micro four-cylinder diaphragm pump includes a micro motor, a bracket assembly is arranged on the upper part of the micro motor, a piston assembly is arranged on the upper part of the bracket assembly, and a valve assembly is arranged on the upper part of the piston assembly.

[0016] Preferably, the bracket assembly includes a lower bracket, an eccentric wheel is arranged on the lower bracket, a lever shaft is arranged inside the eccentric wheel, and a crank is arranged on the upper part of the lever shaft.

[0017] Preferably, the piston assembly includes a piston bracket, and a piston is arranged inside the piston bracket.

[0018] Preferably, the valve assembly includes a valve bracket, an umbrella valve is arranged on the lower part of the valve bracket, a check valve is arranged on the upper part, a sealing sheet is arranged on the upper part of the check valve, and a pump nozzle is arranged on the upper part of the sealing sheet.

[0019] Preferably, the lower bracket, the piston bracket and the valve bracket are fixedly connected by reinforcing screws and are fixed by snap fasteners.

[0020] Preferably, the lower bracket is fixed on the micro motor by fixing screws.

[0021] The rotation of the motor drives the eccentric wheel on the motor shaft. A rotatable shaft is installed in the shaft hole of the eccentric wheel. The shaft moves due to the eccentric wheel and drives the connecting rod connecting the piston, so that the rubber piston reciprocates up and down. Four groups of valves correspond to four groups of piston cylinders to control the inlet and outlet, generating a tolerance and forming water flow. The water flow passes through the outlet valve, reaches the anti-lock valve, pushes open the valve and exits through the outlet channel.

[0022] (I) Multi-cylinder design In the limited space with an outer diameter of 12 mm, the new diaphragm pump innovatively deploys four piston cylinders. Compared with the traditional double-cylinder diaphragm pump, the four-cylinder design significantly improves the continuity of the pumped medium. By increasing the number of piston cylinders, the reciprocating motion of each cylinder is more coordinated, and the medium can be transported more smoothly, reducing the flow rate fluctuations caused by the single-cylinder switching. This design is particularly suitable for application scenarios with high requirements for flow stability, such as fine chemical industry, electronic industry, etc., and can effectively ensure the continuity of the production process and the stability of the product quality.

[0023] (II) Valve optimization The new diaphragm pump is equipped with four corresponding inlet and outlet valves. These valves are carefully designed and optimized to perfectly cooperate with the four piston cylinders, further improving the pumping efficiency and the stability of the medium transportation. The optimized valves have better sealing performance and anti-blocking ability, can effectively reduce the chance of impurities entering the valve interior, and reduce the blocking risk. At the same time, the opening and closing of the valves are faster and more accurate, reducing the residence time of the medium at the valve, and further improving the pumping efficiency. In addition, the new valves adopt special materials and surface treatment processes, improving their wear resistance and corrosion resistance, and extending the service life of the valves.

[0024] (III) Fixing and locking method The new diaphragm pump adopts two fixing and locking methods in the limited space: self-tapping screws and spring clips. The self-tapping screws have high strength and reliable connection performance, can ensure the tight connection of each component of the pump body, and prevent loosening caused by vibration or pressure change. The spring clips have the characteristics of quick installation and disassembly, facilitating the user to quickly operate during maintenance and component replacement, saving time and labor costs. By combining these two fixing and locking methods, the new diaphragm pump makes full use of the limited space layout, ensuring both the stability and reliability of the equipment and improving the convenience of maintenance.

[0025] Summary of technical advantages The new four-cylinder diaphragm pump with an outer diameter of 12 mm effectively solves the problems existing in traditional double-cylinder diaphragm pumps, such as poor pumping continuity, frequent blockages, and sticking of valve plates, through multi-cylinder design, valve optimization, and innovative fixing and locking methods. Its multi-cylinder design improves the continuity and stability of the pumped medium, valve optimization enhances the anti-blocking ability and sealing performance, and the combination of two fixing and locking methods improves the stability of the equipment and the convenience of maintenance. These technical improvements have significantly enhanced the performance, reliability, and maintainability of the new diaphragm pump, enabling it to better meet the market's demand for efficient and stable diaphragm pumps.

[0026] Application scenarios The new diaphragm pump is applicable to a variety of industrial fields, such as chemical industry, pharmaceuticals, food and beverage, electronics, environmental protection, etc., and is particularly suitable for transporting liquids that are prone to blockage, have high viscosity, are corrosive, or contain particles. Its high pumping capacity and stable performance can significantly improve production efficiency and reduce maintenance costs, making it an ideal industrial liquid transportation equipment.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention in any other form. Any person skilled in the relevant art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution content of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A micro four-cylinder diaphragm pump, comprising a micro motor, characterized in that: A support assembly is arranged on the upper part of the micro motor, a piston assembly is arranged on the upper part of the support assembly, and a valve assembly is arranged on the upper part of the piston assembly.

2. The micro four-cylinder diaphragm pump according to claim 1, characterized in that: The support assembly comprises a lower support, an eccentric wheel is arranged on the lower support, a lever shaft is arranged inside the eccentric wheel, and a crank is arranged on the upper part of the lever shaft.

3. The micro four-cylinder diaphragm pump according to claim 2, characterized in that: The piston assembly comprises a piston support, and a piston is arranged inside the piston support.

4. The micro four-cylinder diaphragm pump according to claim 3, characterized in that: The valve assembly comprises a valve frame, an umbrella valve is arranged at the lower part of the valve frame, a check valve is arranged at the upper part, a sealing sheet is arranged at the upper part of the check valve, and a pump nozzle is arranged at the upper part of the sealing sheet.

5. The micro four-cylinder diaphragm pump according to claim 4, characterized in that: The lower bracket, the piston bracket and the valve bracket are fixedly connected by reinforcing screws and fixed by buckles.

6. The micro four-cylinder diaphragm pump according to claim 5, characterized in that: The lower bracket is fixed on the micro motor by fixing screws.

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