Oil pan dismounting mechanism for automobile engine

The utility model relates to the technical field of automobile maintenance, in particular to an oil pan dismounting mechanism for an automobile engine, which comprises a handle, a square hole formed in the upper end of a connecting sleeve rod, a square column inserted in the square hole, a through hole formed in the front end of the square column, limiting holes formed in the front side and the rear side of the inner wall of the square hole, and limiting pins inserted in the limiting holes. The upper end and the lower end of the channel communicate with clamping holes formed in the left end of the hollow pipe. By arranging a limiting hole, a limiting pin, a square hole, a square column and a through hole, the screw sleeve can be replaced conveniently, and bolts and nuts of different sizes and specifications can be detached conveniently during use; the channel, the clamping hole and the shifting rod are arranged, the shifting rod slides up and down in the channel, then the shifting rod slides into the clamping