ADJUSTABLE VEHICLE TRACTOR

The present invention relates to the field of tractors, comprising: in the process of adjusting the sliding support head by the vehicle tractor, the user needs to unscrew the locking bolt, so that the front end of the locking bolt is separated from the locking screw hole of the vertical adjusting end. The friction force between the sliding support head and the vertical adjusting end can be reduced, so that the sliding support head can slide more easily; on the other hand, the talcum powder located in the talcum powder cylinder is attached to the surface of the roller, so that a layer of thin film can be formed between the contact surface of the vertical adjusting end and the sliding support head, so that the movement is smoother, and the abrasion generated by the vertical adjusting end and the sliding support head in the subsequent traction process is protected.