Hydraulic cylinder with length-adjustable cylinder body

The hydraulic cylinder comprises a fixed cylinder body, one end of an opening of the fixed cylinder body is in threaded connection with a cylinder head, the middle position of one side, far away from the fixed cylinder body, of the cylinder head is horizontally connected with a piston rod in a sliding mode, and the interior of the piston rod is of a hollow structure. The end, away from the cylinder head, of the fixed cylinder body is sleeved with a movable cylinder sleeve in a sliding mode, a connecting column is horizontally inserted in the center of one side of the outer wall of the fixed disc, and a pulling assembly enabling the piston rod to drive the movable cylinder sleeve to stretch out and draw back horizontally is arranged in the connecting column and the piston rod. The whole cylinder body can be adjusted, so that when the piston rod drives the movable cylinder sleeve to be adjusted to the needed position, the locking assembly is locked, and the safety effect is achieved. 本实用新型公开了一种缸体长度可调节的液压缸，包括固定缸