Novel self-locking hoop

The utility model discloses a novel self-locking hoop which comprises a hoop body and a flange plate arranged on the hoop body, a bolt used for fixing is arranged on the flange plate, the novel self-locking hoop further comprises a wedge-shaped block used for being in direct contact with a building pier body, the wedge-shaped block is located on the inner side of the hoop body, and the inner wall of the hoop body is matched with the outer side of the wedge-shaped block in an inclined face mode. The novel self-locking hoop is reasonable in structural design, when the temperature rises, the hoop body can press the wedge-shaped block to make the wedge-shaped block make close contact with the pier body when the hoop is heated to expand, the maximum static friction force between the wedge-shaped block and the pier body is guaranteed, the influence of temperature changes on the hoop body is overcome, and the fixing reliability is guaranteed. 本实用新型公开了一种新型自锁抱箍，包括箍身和设在箍身上的法兰板，所述法兰板上设有用于固定的螺栓，还包括用于与建筑墩身直接接触的楔形块，所述楔形块位于