Manual ventilation bin door for prison

The utility model relates to the technical field of prison bin gates, in particular to a prison manual ventilation bin gate which comprises a gate body, a liquid injection opening is formed in the outer wall of the gate body, one side of the liquid injection opening is connected with a dust cover, the inner wall of the liquid injection opening is connected with a connecting pipe, the tail end of the connecting pipe is connected with an installation piece, and the installation piece is connected with a dust cover. Oil outlet pipes are installed on the two sides of the installation part correspondingly, a rotating disc is arranged on the outer surface of the door body, a driving oblique tooth is fixed to one end of the rotating disc, a driven oblique tooth is connected to one side of the driving oblique tooth, and a first lead screw is fixed to the right side of the driven oblique tooth. Lubricating oil is injected into the liquid injection port, flows into the mounting piece under the cooperation of the connec