Molecular sieve oxygenerator and oxygen storing tank thereof

The utility model discloses a molecular sieve oxygenerator and an oxygen storing tank thereof. The oxygen storing tank comprises an oxygen storing tank upper cover, an oxygen storing tank body, an oxygen storing tank lower cover and a pressure regulating valve, wherein the oxygen storing tank body is mounted between the oxygen storing tank upper cover and the oxygen storing tank lower cover; the pressure regulating valve is mounted at the bottom of the oxygen storing tank lower cover; two air inlets are formed in the inner side of the oxygen storing tank upper cover; arc-shaped pits are formed in the peripheries of the air inlets; cover plates cover the upper parts of the pits; and diaphragms are arranged between the cover plates and the pits. Through the adoption of the structure, the molecular sieve oxygenerator and the oxygen storing tank thereof have the advantages that non-return valve function can be integrated into the oxygen storing tank; the cost is saved; the pipeline configuration of the machine is