Pressure sterilization device with leak-proof function

The utility model discloses a pressure sterilization device with a leakproof function, which comprises a sterilization box, a cover plate and a locking component, the cover plate is connected to the top of the sterilization box, the locking component comprises a support unit and a linkage unit, the support unit comprises support rods and a bearing seat, the support rods are symmetrically fixed on two sides of the bearing seat, and the linkage unit is connected with the support rods. The bottom of the supporting rod is vertically fixed to the edge of the top of the sterilization box, the cover plate is slidably connected with the supporting rod, and the linkage unit comprises a first linkage rod and a second linkage rod. The cover plate locking and unlocking device has the beneficial effects that the connecting seat is driven to move up and down through the extension and retraction of the air cylinder, and then the first linkage rod and the second linkage rod are driven to integrally perform linkage through th