Press-fitting control arm ball pin snap spring device

The invention is applicable to the technical field of snap spring installation and provides a press-fitting control arm ball pin snap spring device. The device comprises a main body assembly and a press-fitting sleeve assembly, wherein the main body assembly comprises a rear shield, a rear cover plate, a bush, a ball seat, a ball pin and a dust cover; the rear cover plate is fixedly connected withthe rear shield and positioned at the middle position of an inner side wall of the rear shield; the bush is fixedly connected with the rear shield and positioned at the top end of the rear shield; and the ball seat is fixedly connected with the bush and positioned on the inner side wall of the bush. The press-fitting snap spring sleeve in which a first groove, a second groove, a third groove anda fourth groove are formed corresponds to the ball pin, and the press-fitting snap spring sleeve is fixed by mutually correspondingly rotating a concave thread above the inner side wall of the press-fitting snap spring sleeve