Miniature vacuum air pump and air collecting and exhausting assembly thereof

By using a collection and exhaust assembly in the micro vacuum air pump, the swing arm drives the end of the elastic airbag to move towards the capsule wall, the existing micro vacuum air pump has solved the problem of large size and high manufacturing cost, and achieved a more efficient collection and exhaust gas and a simpler structural design.

CN119982466APending Publication Date: 2025-05-13SHENZHEN LONGYI TECH CO LTD
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Patent Information

Application Number
CN202510414558.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2025-05-13

AI Technical Summary

Technical Problem

The existing micro vacuum air pumps require two diaphragms and multiple eccentric wheels and flywheels to be installed on both sides of the power assembly, resulting in large equipment size and high manufacturing cost, making it difficult to achieve a miniaturized design.

Method used

The integrated exhaust assembly is adopted, including the cylinder block and the swing frame, and the end of the elastic airbag is driven to reciprocate in the cylinder wall to move the end of the elastic airbag to the bladder wall, thereby realizing the inlet and exit of the airflow, simplifying the structure and reducing the volume.

Benefits of technology

It effectively improves the exhaust gas efficiency, simplifies the structure, reduces the volume of the micro vacuum air pump, and reduces the manufacturing cost.

✦ Generated by Eureka AI based on patent content.

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    Figure CN119982466A_ABST
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Abstract

The air collecting and exhausting assembly comprises a cylinder body, the cylinder body comprises a cylinder barrel with an inserting hole formed in the side face and an elastic air bag which is correspondingly arranged in the cylinder barrel and provided with a bag opening in the side directly facing the inserting hole, and the lateral bag wall of the elastic air bag and the periphery of the bag opening are both connected with the barrel wall of the cylinder barrel in a sealed mode; the end bag walls, facing the openings in the two ends of the cylinder barrel, of the elastic air bag are each provided with an inner exhaust hole and a valve block extending into the inner exhaust hole. The swing frame comprises a swing shaft used for being in butt joint with an output shaft of a driving piece of the miniature vacuum air pump and a swing arm used for alternately pushing the two ends of the elastic air bag to move towards the opening direction of the bag wall towards the corresponding end of the cylinder barrel under driving of the swing shaft, and an airflow channel is formed in the swing arm. The end, located outside the cylinder barrel, of the airflow channel is provided with an air inlet, and the end, located in the cylinder barrel, of the airflow channel is provided with air outlets in one-to-one correspondence with the two valve blocks on the elastic air bag. The volume of the miniature vacuum air pump can be effectively reduced.
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