Mono-block hydraulic prop

The utility model discloses a single hydraulic prop which comprises a movable column casing. A top cover is sleeved at the upper end of the movable column casing; the movable column casing is sleeved in an oil cylinder; the outside of the upper end of the oil cylinder is provided with a handle body, and the lower end of the oil cylinder is provided with a base; the movable column casing is internally provided with an offsetting spring and an airproof end cover; the airproof end cover is fixed on the movable column casing; one end of the offsetting spring is connected with the airproof end cover, and the other end is connected with the base; the upper end of the top cover is provided with a bearing block; a matched spherical surface is arranged between the top cover and the bearing block, and the bearing block is articulated with the top cover; the airproof end cover is arranged on the top end of the movable column casing; and the airproof end cover is fixedly connected with the movable column casing. Compared