Molecular sieve pressing device in oxygen generator

The invention discloses a molecular sieve pressing device in an oxygen generator, and particularly relates to the technical field of oxygen generators, the molecular sieve pressing device comprises an oxygen generation outer tank, a tank cover is fixedly mounted at the top end of the oxygen generation outer tank, an inner cylinder base is arranged at the bottom of the inner side of the oxygen generation outer tank, and an adsorbent mechanism is movably clamped at the top end of the inner cylinder base. Through arrangement of an adsorbent mechanism, cooperative use of a sealing disc and a pressing mechanism, and auxiliary use of an auxiliary driving assembly, when oxygen is prepared through intake, a first pressing air bag and a second pressing air bag can automatically expand, and a lithium molecular sieve in a corresponding second cavity and an aluminum oxide molecular sieve in a first cavity are automatically pressed; a first pressing air bag and a second pressing air bag are expanded to seal the top of the