Intubation hoop varieties including couplings, half coupling. The couplings with equal diameter and diameter of different diameters, couplings and concentric and eccentric points.
The utility model is characterized in that the socket is provided with a socket socket, and the socket and the bearing mouth are respectively positioned at both ends of the bending part; compared with the prior art, the design is reasonable, the operation is simple, the practicability is strong, and the operation quality and the agility are improved. 　
The bearing hoop can be widely used in pipes with different diameters, including single pass, three pass, four pass, etc., and can also be used for water meters and valves