Vertical pressure steam sterilizer

The utility model discloses a vertical pressure steam sterilizer which comprises a sterilizer main body, a processing cavity is arranged in the sterilizer main body, the top of the sterilizer main body is rotatably connected with a sealing cover, a locking mechanism is assembled between the sealing cover and the sterilizer main body, a mounting rack is fixedly assembled in the processing cavity, and a storage rack is assembled in the processing cavity through the mounting rack. After the treatment cavity is sealed through the sealing cover, locking bolts in the locking mechanism are matched with locking screw holes, the sealing cover and the sterilizer body are connected and fixed, the locking bolts on the two sides can be operated in a unified mode by screwing a handle wheel, a traditional tool is not needed for screwing, operation steps are saved, the assembly process is simple and convenient, and the assembly efficiency is improved. Meanwhile, the locking bolts which are symmetrically distributed left and