Hydraulic oil cylinder buffering sleeve

The utility model relates to the technical field of hydraulic machinery accessories, in particular to a hydraulic oil cylinder buffering sleeve. A guide ring is installed at one end of the hydraulic oil cylinder buffering sleeve, the other end of the hydraulic oil cylinder buffering sleeve is a working surface of a cone, a transition fillet is installed on the outer end face of the working surface, and three to six buffering inclined surfaces are axially installed on the outer surface of the cone at intervals. According to the hydraulic oil cylinder buffering sleeve, the transition fillet is installed on the outer end face of the working surface of the cone, and the buffering inclined surfaces are installed on the outer surface, so that during working, oil inside a buffering cavity passes through gaps between the buffering inclined surfaces and the buffering cavity. Along with decreasing of the oil area, oil pressure inside the buffering cavity is gradually increased, flow of the hydraulic oil is slowly changed from large to small, the hydraulic oil is slowly discharged, the running speed of a piston is changed from fast to slow, and the piston is slowly stopped when being close to the inner end face of a cylinder cover. Therefore, buffering function is really achieved, impact of the piston on the cylinder cover is reduced, and service life of an oil cylinder is prolonged.