Locking structure for telescopic rod

A locking structure for a telescopic rod comprises a limiting sleeve and a limiting sleeve pedestal, and a clamping table is arranged between the limiting sleeve and the limiting sleeve pedestal. The clamping table is sleeved with an expansion ring. The expansion ring comprises two symmetrical arc-shaped sheet bodies which form an annular structure, and an eccentric circular hole is formed in the inner wall of the expansion ring; the clamping table is of a circular-truncated-cone-shaped structure, the limiting sleeve pedestal and the limiting sleeve are concentrically arranged, and the clamping table and the limiting sleeve pedestal are eccentrically arranged; and the eccentricity of the clamping table is matched with the eccentricity of the circular hole in the expansion ring. The locking structure is improved on the basis of an existing telescopic rod locking sleeve structure, when eccentric locking is achieved through the improved locking structure, the contact face between the outer wall of the expansion