Watertight cable spherical hinge for ocean drifting buoy

The utility model discloses a watertight cable spherical hinge for an ocean drifting buoy, which belongs to the technical field of ocean drifting buoys and comprises a spherical hinge force-bearing device, a ball support and a force-bearing ball head are sequentially mounted on the inner side of the spherical hinge force-bearing device, and the ball support is connected with the force-bearing ball head. A plurality of balls are installed on the surface, close to the force bearing ball head, of the ball support, the force bearing ball head is in interference fit with the balls, a ball flange is arranged at the top of the ball hinge force bearing device, a watertight cable body is inserted into the inner side of the force bearing ball head in a penetrating mode, and the joint of the watertight cable body and the inner side of the force bearing ball head is filled with sealing soft rubber. A first sealing rubber ring is embedded in a top opening of the force-bearing ball head, a sleeve is installed at the bottom