Molecular sieve oxygen generator and molecular sieve device thereof

The invention discloses a molecular sieve oxygenerator and a molecular sieve device thereof, and belongs to the field of molecular sieves, the molecular sieve oxygenerator comprises a box body, a main shaft is rotatably mounted in the middle of the interior of the box body, an air supply mechanism is arranged at the upper end of the box body, a plurality of brackets are distributed on the outer side of the main shaft along a circumferential array, and auxiliary sealing mechanisms are arranged on the outer sides of the brackets; a molecular sieve layer is assembled between the two brackets, a protection mechanism is arranged on the molecular sieve layer, a replacement cavity is formed in the box body, a through hole is formed in the side, away from the main shaft, of the replacement cavity, a baffle is inserted into the through hole, the auxiliary sealing mechanism comprises magnets symmetrically installed on the outer sides of the brackets, and the brackets are connected with metal strips through the magnets.