American heavy-load double-layer self-locking hoop

The utility model provides an American heavy-load double-layer self-locking hoop which is characterized in that the American heavy-load double-layer self-locking hoop comprises a hoop shell, a worm, a hoop steel belt, a compensation assembly and an inner ring, the hoop steel belt is connected with the hoop shell through the worm, the inner ring is arranged on the inner side of the hoop steel belt, and the compensation assembly is arranged between the inner ring and the hoop steel belt; the inner ring is installed on the inner layer of the hoop steel belt, the width of the inner ring is slightly larger than that of the steel belt, the two ribs on the inner side can effectively clamp the rubber pipe, the contact face between the inner ring and the rubber pipe is smooth, clamping force is even, the rubber pipe is not prone to being damaged, locking sealing is achieved, and a certain self-locking function is achieved; the hoop steel belt is used for balancing changes of the pipeline due to temperature and motion