Fracture-resistant device for differential settlement and free deformation of water supply pipeline

The utility model relates to an anti-fracture device for differential settlement and free deformation of a water supply pipeline. The problem of water leakage caused by breakage of joints of the water supply pipelines due to settlement difference at indoor and outdoor butt joints of the water supply pipelines is mainly solved. The water supply device is characterized in that the indoor water supply pipe (1) and the outdoor water supply pipe (2) are connected through a U-V combined compensation mechanism (3), and the U-V combined compensation mechanism (3) converts bending deformation borne by the indoor water supply pipe (1) and the outdoor water supply pipe (2) into rotating torque and enables a V-shaped opening to be twisted, deformed and enlarged. The U-V combined compensation mechanism is connected to the butt joint position of the water supply pipeline and can convert bending deformation fracture destructive force borne by the water supply pipeline due to ground subsidence into rotating torque of the rot