Slidable steering gear with double-layer guide pipe structure

The utility model relates to a slidable steering gear with a double-layer guide pipe structure, which comprises a double-layer guide pipe, an outer steel pipe, a partition plate, grouting materials and a guide plate, the guide pipe is a double-layer guide pipe, and the double-layer guide pipe is composed of an outer pipe, an inner pipe and lubricant positioned between the outer pipe and the inner pipe; in the assembly state, the outer pipe is connected with the partition plate and the guide plate into a whole through grouting materials, and the inner pipe can freely slide in the outer pipe under the action of lubricating agents. Furthermore, the two ends of the inner pipe are of a gradually-enlarged flaring structure, and the flaring shape is one of a conical shape, a horn shape and a cylindrical shape. The outer pipe and the inner pipe are made of steel, plastic, rubber or composite materials. When the external cable is tensioned, the inner pipe of the double-layer guide pipe can freely slide in the outer pi