Ball joint assembly for riding steering

A containing through cavity is formed in the middle of a ball seat body, an upper cover body and a lower cover body are installed at the two ends of the ball seat body respectively, the upper cover body and the lower cover body are provided with a first opening and a second opening respectively, the first opening and the second opening are communicated with the containing through cavity, and a ball pin body is arranged on a steering shaft. The steering shaft penetrates through the upper cover body, the ball seat body and the lower cover body, the ball pin body is located between the upper cover body and the lower cover body, and a gap used for storing oil is formed between the outer wall of the ball pin body and the inner wall of the containing through cavity. By means of the optimized design, the ball seat is composed of the ball seat body and the two end cover bodies, machining and assembling are convenient, meanwhile, the oil storage gap is preset between the ball seat body and the ball pin body, solid lub