High-pressure single-return steel pipe pole

The utility model discloses a high-voltage single-circuit steel pipe pole, which relates to the technical field of high-voltage transmission poles and comprises a steel pipe pole, an upper support ring and a lower support ring are arranged at the upper end of the steel pipe pole and are aligned in parallel, the bottom end of the upper support ring and the top end of the lower support ring are both fixedly connected with the steel pipe pole, and a plurality of cross arms are arranged on the upper support ring. An upper buckle is arranged at one end of the cross arm, the upper buckle is connected with the upper supporting ring in a clamped mode, a lower buckle is arranged below the upper buckle, the lower buckle is connected with the cross arm through a bolt and connected with the lower supporting ring in a clamped mode, the distance between clamping grooves of the upper buckle and the lower buckle is smaller than or equal to the total height of the upper supporting ring and the lower supporting ring, and a jac