Universal supporting rack for engine cylinder block

The invention relates to a universal supporting rack for an engine cylinder block, which belongs to the technical field of engine maintenance accessories, and comprises a rack, a plurality of sliding guide rails are arranged on the rack, and a plurality of supporting columns are arranged on the sliding guide rails in a sliding manner; the supporting column comprises an outer sleeve sliding on the sliding guide rail and a piston rod arranged in the outer sleeve, and the extension height of the piston rod in the outer sleeve is adjusted through a height locking piece. A top supporting assembly is universally hinged to the top end of the piston rod and comprises a top supporting seat hinged to the top end of the piston rod, and at least three supporting feet evenly distributed in an annular mode are arranged on the top supporting seat. The supporting columns are matched with the sliding guide rails to be distributed on the rack. The height locking pieces adjust the height of the supporting columns. At least thre