Miniature four-cylinder diaphragm pump

Abstract

The utility model 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 utility model belongs to pump field especially relates to a micro four cylinder diaphragm pump. BACKGROUND

[0002] At present, the diaphragm pump with 12mm diameter commonly seen in market mostly adopts single piston or double piston cylinder body design, and this structure has many deficiencies. The continuity of pumped medium is poor, and intermittent delivery problem is prone to occur, which influences production efficiency and process stability. In addition, the diaphragm pump with double cylinder design is prone to blockage when conveying medium containing particles or impurities, and once blockage occurs, not only the conveying process will be interrupted, but also the equipment may be damaged. At the same time, the problem of valve sticking is also common, and once the valve sticks, the diaphragm pump will not work normally, and frequent maintenance or replacement of parts is needed, which increases maintenance cost and equipment downtime. SUMMARY

[0003] The utility model provides a micro four cylinder diaphragm pump aiming at above -mentioned problem.

[0004] In order to achieve the above purpose, the utility model adopts the technical scheme that,

[0005] A micro four cylinder diaphragm pump, including micro motor, the upper portion of micro motor is provided with support assembly, the upper portion of support assembly is provided with piston assembly, the upper portion of piston assembly is provided with valve assembly.

[0006] As preferred, the support assembly includes a lower support, the lower support is provided with an eccentric wheel, the eccentric wheel is provided with a lever shaft, and the lever shaft is provided with a crank at the upper portion.

[0007] As preferred, the piston assembly includes a piston support, and the piston support is provided with a piston inside.

[0008] As preferred, the valve assembly includes a valve holder, the lower portion of the valve holder is provided with an umbrella valve, the upper portion is provided with a check valve, the upper portion of the check valve is provided with a sealing sheet, and the upper portion of the sealing sheet is provided with a pump nozzle.

[0009] As preferred, the lower support, the piston support and the valve holder are fixedly connected through reinforcing screws and are fixedly clamped through buckles.

[0010] As preferred, the lower support is fixed on the micro motor through fixing screws.

[0011] Compared with the prior art, the utility model has the advantages and positive effects that,

[0012] The overall design of this novel diaphragm pump has significantly improved performance, reliability, and maintainability, better meeting the market demand for efficient and stable diaphragm pumps. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A three-dimensional structural diagram of a miniature four-cylinder diaphragm pump;

[0015] Figure 2 Exploded view of a miniature four-cylinder diaphragm pump (excluding mounting screws);

[0016] Figure 3 An exploded view from top to bottom of a miniature four-cylinder diaphragm pump;

[0017] In the above figures, 1. Miniature 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. Reinforcing screw; 13. Sealing plate; 14. Pump nozzle; 15. Fixing screw. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Example 1, such as Figure 1 As shown, a miniature four-cylinder diaphragm pump includes a miniature motor, a support assembly on the upper part of the miniature motor, a piston assembly on the upper part of the support assembly, and a valve assembly on the upper part of the piston assembly.

[0021] Preferably, the support assembly includes a lower support, an eccentric wheel is provided on the lower support, a lever shaft is provided inside the eccentric wheel, and a crank is provided on the upper part of the lever shaft.

[0022] As a preferred, the piston assembly comprises a piston holder, and the piston holder is internally provided with a piston.

[0023] As a preferred, the valve assembly comprises a valve holder, and the lower part of the valve holder is provided with an umbrella valve, and the upper part of the valve holder is provided with a check valve, and the upper part of the check valve is provided with a sealing piece, and the upper part of the sealing piece is provided with a pump nozzle.

[0024] As a preferred, the lower holder, the piston holder and the valve holder are fixedly connected through reinforcing screws and are fixedly connected through buckles.

[0025] As a preferred, the lower holder is fixed on the micro motor through fixing screws.

[0026] The motor rotates to drive the eccentric wheel on the motor shaft, the shaft hole on the eccentric wheel is installed with a rotatable shaft, the shaft is driven to move the connecting rod connected to the piston, so that the rubber piston reciprocates up and down, and four groups of valves control the inlet and outlet corresponding to four groups of piston cylinders, tolerance is generated, and water flow is formed. The water flow passes through the outlet valve, reaches the reverse lock valve, opens the valve, and goes out from the outlet passage.

[0027] (I) Multi-cylinder design

[0028] The new diaphragm pump innovatively deploys four piston cylinders in a limited outer diameter of 12mm. Compared with traditional double-cylinder diaphragm pumps, 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, which can more smoothly transport the medium and reduce the flow fluctuation caused by single-cylinder switching. This design is particularly suitable for applications with high requirements for flow stability, such as fine chemical industry and electronic industry, which can effectively guarantee the continuity of production process and the stability of product quality.

[0029] (II) Valve optimization

[0030] 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 stability of medium transportation. The optimized valves have better sealing performance and anti-clogging ability, which can effectively reduce the opportunity of impurities entering the valve interior and reduce the risk of clogging. At the same time, the opening and closing of the valve are more rapid and accurate, reducing the residence time of the medium at the valve, further improving the pumping efficiency. In addition, the new valve adopts special materials and surface treatment process, improving its wear resistance and corrosion resistance, prolonging the service life of the valve.

[0031] (III) Fixed locking mode

[0032] The new diaphragm pump uses two types of fixed locking methods in limited space: self-tapping screws and spring buckles. Self-tapping screws have high strength and reliable connection performance, which can ensure the tight connection of each part of the pump body and prevent loosening caused by vibration or pressure change. Spring buckles have the characteristics of quick installation and disassembly, which is convenient for users to quickly operate when maintaining and replacing parts, saving time and labor cost. Through the combination of the two types of fixed locking methods, the new diaphragm pump makes full use of the limited space layout, which not only ensures the stability and reliability of the equipment, but also improves the convenience of maintenance.

[0033] Summary of technical advantages

[0034] The new four-cylinder diaphragm pump with an outer diameter of 12mm effectively solves the problems of poor pumping continuity, frequent blockage and valve sticking of traditional double-cylinder diaphragm pumps through multi-cylinder design, valve optimization and innovative fixed locking method. 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 the two types of fixed locking methods improves the stability of the equipment and the convenience of maintenance. These technical improvements significantly improve the performance, reliability and maintainability of the new diaphragm pump, which can better meet the market demand for efficient and stable diaphragm pumps.

[0035] Application scenarios

[0036] The new diaphragm pump is suitable for various industrial fields such as chemical industry, pharmaceutical industry, food and beverage industry, electronics industry, environmental protection industry, etc., especially for conveying easily blocked, high viscosity, corrosive or particle-containing liquids. Its efficient pumping capacity and stable performance can significantly improve production efficiency and reduce maintenance cost, making it an ideal industrial liquid conveying equipment.

[0037] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art may modify or change the above disclosed technical content to equivalent embodiments applied in other fields, but any simple modification, equivalent change and modification of the above embodiments within the technical content of the present application, in accordance with the technical essence of the present application, still belongs to the protection scope of the present application.

Claims

1. A miniature four-cylinder diaphragm pump, comprising a miniature motor, characterized in that, The micro motor has a support assembly on its upper part, a piston assembly on its upper part, and a valve assembly on its upper part. The support assembly includes a lower support, an eccentric wheel on its lower support, a lever shaft inside the eccentric wheel, and a crank on its upper part. The piston assembly includes a piston support, and a piston inside the piston support. The valve assembly includes a valve frame, a parapet valve on its lower part, a check valve on its upper part, a sealing plate on its upper part, and a pump nozzle on its upper part.

2. The miniature four-cylinder diaphragm pump according to claim 1, characterized in that, The lower bracket, piston bracket, and valve bracket are fixedly connected by reinforcing screws and secured by clips.

3. The miniature four-cylinder diaphragm pump according to claim 2, characterized in that, The lower bracket is fixed to the micro motor by fixing screws.

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