Autoclave self-suction shaft

The utility model belongs to the technical field of autoclave parts, and particularly relates to an autoclave self-suction shaft which comprises a hollow shaft rod. An air inlet cavity is fixedly installed at one end of the hollow shaft rod, the interior of the air inlet cavity communicates with the inner diameter of the hollow shaft rod, multiple air inlet holes are formed between the inner walls of the air inlet cavity, and the multiple air inlet holes are formed in the circumferential direction of the outer wall of the hollow shaft rod in an array mode; the inside of the device can be extracted by a gas phase positioned at the upper part of an air extracting pump and is discharged by a stirring paddle exhaust port positioned at the lower part of the inside of the device, and the stirring paddle exhaust port is submerged by a liquid phase, so that the gas phase can gradually rise through the air extracting pump in a reciprocating manner to be in contact with liquid phase bubbles in the kettle; furthermore,