Ball seat structure of inner ball head pull rod assembly

The utility model relates to a ball seat structure of an inner ball head pull rod assembly. The ball seat structure comprises a ball head pull rod, a telescopic rubber sleeve and a shell, the shell islocated in the telescopic rubber sleeve. The ball head end of the ball head pull rod is located in the shell, and the other end of the ball head pull rod extends out of the shell and then extends outof the telescopic rubber sleeve. A first POM ball seat and a second POM ball seat are arranged on the two sides, corresponding to the periphery of the ball head end of the ball head pull rod, in theshell respectively, and a PU ball seat is arranged on the side, corresponding to the second POM ball seat and away from the first POM ball seat, in the shell. The inner ball pull rod assembly has theadvantages that the problem of compensation after the ball head or the ball seat of the inner ball pull rod assembly is abraded is solved, and the service life of a product is prolonged. 本实用新型涉及一种内球头拉杆总成球座结构，包括球头拉杆、伸缩胶套和壳体；所述壳体处