Model car steam headstock capable of keeping running linearity of headstock

The model car steam headstock capable of keeping the running linearity of the headstock comprises the headstock, and the rear portion of the headstock is connected with a coal truck compartment through a connecting shaft. The vehicle head comprises at least three vehicle frames which have the steering function and are sequentially connected in series. Each section of frame is provided with a pair of wheels through an axle; springs are arranged between the two sides of the frame close to the coal truck carriage and the two wheels respectively, the springs are sleeved on the axles, one end face of each spring abuts against the inner surface of the corresponding wheel, and the other end face of each spring abuts against the side face of the frame. The springs are respectively arranged between the two sides of the section of the frame close to the coal clamp and the two wheels, and the wheels extrude the frame through the springs, so that the frame and a track are quickly kept in the same linearity, namely, the h