Sealing structure of air cylinder end cover

The utility model discloses an air cylinder end cover sealing structure which comprises a piston, a fixing plate is connected to the position, close to the middle of the front end, of the outer side wall of the piston in a sleeved mode, a top end cover is connected to the rear side wall of the fixing plate in a threaded mode, a cylinder barrel is installed in the middle of the rear side wall of the top end cover, and a bottom end cover is installed on the rear side wall of the cylinder barrel. Pull rods are mounted at four corners of the rear side wall of the top end cover, and one ends, far away from the top end cover, of the pull rods are fixedly mounted at four corners of the front side wall of the bottom end cover. According to the utility model, the dust removal pad in the air cylinder can be conveniently and quickly assembled and disassembled by the fixing plate, so that the mounting is quick and convenient, the dust removal pad can isolate dust from the outer side wall of the piston, the situation that