Reciprocating piston air compressor and air inlet device thereof

Abstract

The utility model relates to the technical field of piston type air compressors, in particular to a compound piston air compressor and an air inlet device thereof. The air inlet device of the reciprocating piston air compressor comprises an air inlet channel and an air duct and further comprises an airflow separation assembly and a pretreatment assembly, and the airflow separation assembly comprises an air collection cylinder, an air collection pipe, a driving air cylinder, a rotating shaft and an airflow separation plate. A pretreatment assembly is arranged on the inner wall of the air inlet channel, the airflow separation assembly is started through airflow part pressure, and an airflow separation plate rotates to filter impurities. The pretreatment assembly starts the airflow separation assembly by means of partial pressure of entering airflow, and then the airflow separation assembly filters and separates impurities in the airflow by rotating an airflow separation plate on the airflow separation assembly. The utility model mainly solves the problems that the airflow filtering efficiency is low and impurities cannot be cleaned in time in the prior art. The utility model further provides a compound piston air compressor which comprises the air inlet device.

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