Heavy-type hinge for installing cable tower of cable bridge

The utility model discloses a heavy-type hinge for installing a cable tower of a cable bridge, which comprises a lower hinge seat, a hinge shaft and an upper hinge seat. The upper hinge seat and the lower hinge seat are connected through the hinge shaft, and the upper hinge seat can freely rotate relative to the lower hinge seat. The heavy-type hinge is used for integrally vertical rotation of the cable tower of the slope cable bridge, the lower hinge seat of the hinge is fixed on a lower hinge seat anchor plate which is welded and fixed with a steel tower foundation section embedded in a concrete tower root, fineness of a rotation portion where the hinge shaft, the lower hinge seat and the upper hinge seat are connected is all Ra3.2 grade or above Ra3.2 grade, high contact area and stable rotation between the hinge shaft and a shaft hole are guaranteed, guarantees are provided to integrally vertical rotation of the cable tower, time and labor for installing the cable tower are saved, and installation accuracy is high.