A telescopic hydraulic cylinder and a cover tube of a telescopic hydraulic cylinder

摘要

The present invention relates to the field of telescopic hydraulic cylinders and to the field of load handling and transportation vehicles with load tipping actuated by telescopic hydraulic cylinders, and more particularly to a telescopic hydraulic cylinder and a cover tube of a telescopic hydraulic cylinder. A cover tube (10) of a telescopic hydraulic cylinder according to the present invention has a base ring (15) attached to the cover tube (10), said base ring (15) having a curved surface; and a fitting ring (12) fitted on top of the base ring (15), said fitting ring (12) having a curved surface matching with the curved surface of the base ring (15), wherein the fitting ring (12) of said cover tube (10) further comprises two securing elements (16), (18) having a cylindrically curved upper surface, and that said base ring (15) having cylindrically curved surfaces matching with the cylindrically curved surfaces of the said securing elements (16), (18).