Molecular sieve adsorber top device and molecular sieve adsorber comprising same

The utility model discloses a molecular sieve adsorber top device and a molecular sieve adsorber comprising the same. The molecular sieve adsorber top device comprises a cover plate, a molecular sieve pressing plate and an elastic component, the cover plate is connected with the upper end of a tank body used for oxygen preparation through a connecting assembly and seals the tank body, and a through hole communicating with the interior of the tank body is formed in the cover plate. The molecular sieve pressing plate is horizontally arranged in the straight cylinder at the upper end of the tank body and can slide up and down along the straight cylinder, and the molecular sieve pressing plate applies downward acting force to the molecular sieve located below the molecular sieve pressing plate; the outer side face of the elastic assembly is fixedly connected with the through hole, and the lower end of the elastic assembly penetrates through the through hole to apply downward acting force to the molecular sieve pr