Screw pile

The utility model discloses a screw pile, which belongs to the technical field of foundation pile pipes and comprises a screw pile body and a reinforcing ring sleeved on the outer side of the screw pile body. The reinforcing ring comprises a sleeve and at least three reinforcing blocking pieces evenly distributed on the outer circle face of the sleeve. The reinforcing blocking pieces are parallel to the axis of the screw pile body. The reinforcing ring is additionally arranged on the screw pile body, the reinforcing blocking pieces on the reinforcing ring are used for buffering force of all angles in the horizontal direction, and compared with an existing screw pile, the overall horizontal bearing capacity and stability can be improved under the condition that the diameter of the screw pile body is not changed, namely, the original steel consumption can be kept or reduced, and meanwhile the overall strength of the screw pile is improved. And the overall performance can be enhanced, so that the cost performanc