Anti-falling device for lining plate of ball mill

The utility model provides a ball mill lining plate anti-falling device which comprises a machine body, the machine body comprises a lining plate and an anti-falling assembly, the lining plate is movably connected with the inner wall of the machine body through the anti-falling assembly, the anti-falling assembly comprises a circular groove, the circular groove is formed in the outer surface of the lining plate, a bolt is movably connected into the circular groove, and the anti-falling assembly is arranged in the circular groove. The bolt rotates the inner wall of the machine body in a threaded mode and penetrates through the inner wall of the machine body, the end, close to the outer wall of the machine body, of the bolt is rotationally connected with a screw in a threaded mode, threads of the screw and threads of the bolt are oppositely arranged, the screw extends into the bolt and is movably connected with a fixing rod, and the other end of the fixing rod is movably connected with the inner wall of the bol