Biological safety treatment device of vertical pressure steam sterilizer

The utility model discloses a vertical pressure steam sterilizer biological safety treatment device which comprises a bottom plate, a plurality of supporting plates are arranged on the upper side of the bottom plate and used for supporting a bearing plate, a sealing groove is formed in the upper side of the bearing plate, and a sealing ring is arranged in the sealing groove. The device has the beneficial effects that the locking assembly is released firstly, then the pressure tank is lifted through the heightening assembly, so that the lower side of the pressure tank is separated from the sealing groove, then the heightening assembly and the pressure tank are moved leftwards, the bottom of the pressure tank and the bearing plate are staggered by moving the pressure tank, then the bottom of the mounting frame is supported, and then limiting of the limiting assembly on the mounting frame is released; and then, the height of the mounting rack can be slowly reduced until the connecting plate II is in contact with