Micro suction pump

Abstract

A micro suction pump is characterized by comprising an air pump component and a motor, wherein the air pump component comprises a rocker bracket, a flexible membrane set and a valve assembly; the rocker bracket is composed of a rocker and a disc bracket body, and the rocker is connected with a motor rotation shaft through an eccentric structure; the disc bracket body is provided with two to eight locating holes which are evenly distributed; the flexible membrane set comprises flexible membranes and blocking pieces which are equal to the locating holes in number; the blocking pieces are connected to the outer edges of the upper ends of the flexible membranes, and the lower ends of the flexible membranes are located in the locating holes; the valve assembly comprises one-way suction valves and a discharge outlet, wherein the number of the one-way suction valves is equal to that of the flexible membranes; the upper ends of the one-way suction valves are connected with suction openings; the upper ends of the flexible membranes cover the lower ends of the one-way suction valves in a sealing mode, and therefore a closed cavity is formed; flow channels are formed in the side wall of the discharge outlet; the blocking pieces extend into the discharge outlet and correspond to the flow channels respectively, so that the flow channels have a closed state and an opened state. The micro suction pump is high in suction efficiency, low in noise, compact in structure and high in reliability.

Description

technical field [0001] The invention relates to a pump, in particular to a miniature suction pump which can suck out not only gas but also liquid. The miniature suction pump is mainly used for vacuuming and keeping fresh in refrigerators. Background technique [0002] Suction pump is a kind of vacuum pump, which has a wide range of applications and can be used for various tasks that need to pump out gas or suck out liquid. Existing suction pumps usually realize the pumping and liquid suction functions through the reciprocating motion of the piston cylinder, but they have the problems of large volume and high noise, and are not suitable for small equipment or places that require quietness . For this reason, the industry has developed some small and exquisite suction pumps to overcome the above-mentioned shortcomings, but looking at this type of existing small suction pumps, due to their unreasonable structural design, for example It is a reduced version of the original con...

AI Technical Summary

Problems solved by technology

Existing suction pumps usually realize the pumping and liquid suction functions through the reciprocating motion of the piston cylinder, but they have the problems of large volume and high noise, and are not suitable for small equipment or places that require quietness

For this reason, the industry has developed some small and exquisite suction pumps to overcome the above-mentioned shortcomings, but looking at this type of existing small suction pumps, due to their unreasonable structural design, for example It is a reduced version of the original conventional suction pump, so the following problems still exist in long-term use: 1. Low suction efficiency; 2. Poor noise suppression effect; 3. Not compact structure; 4. Poor reliability

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