Wire tightener for electric power engineering cable installation

A tightener for electric power engineering cable installation comprises a cross arm and a fixing hook, the fixing hook is hinged to one end of the cross arm, and the other end of the cross arm is connected with a wiring frame through a steel wire rope; cable holes are formed in the top and the bottom of the wiring frame, and the axes of the two cable holes are the same; two hinge holes are symmetrically formed in the wiring frame along the axis of the cable hole, hinge shafts are arranged in the hinge holes in a penetrating mode, and eccentric wheels are arranged on the hinge shafts in a penetrating mode. Torsion springs are arranged between the eccentric wheels and the hinge shafts, and the two eccentric wheels abut against each other; a connecting rod is hinged to one side face of the eccentric wheel, a control plate is hinged to the other end of the connecting rod, a sliding column is arranged on the control plate, a vertical groove is further formed in the wiring frame, and the sliding column penetrates t