The utility model provides an adjustable cable supporting device for electrical
engineering, which relates to the technical field of cables for electrical
engineering and comprises a rack, and an adjusting mechanism is arranged in the rack. The adjusting mechanism comprises two placing frames, the two ends of each placing frame are fixedly connected with the inner wall of the rack, two sets of connecting springs are fixedly installed on the inner wall of each placing frame, a
pulley is fixedly installed at the end, away from the corresponding placing frame, of each connecting spring, and a
ball screw is rotationally connected into the rack. A movable plate is in threaded connection with the outer surface of the
ball screw, two fixed springs are fixedly mounted on the upper surface of the movable plate, a mounting plate is fixedly mounted at the top ends of the two fixed springs, a
fixed frame is fixedly mounted on the upper surface of the mounting plate, a roller shaft is rotationally connected into the
fixed frame, and a graduated scale is fixedly mounted on the bottom surface of the mounting plate. According to the device, the rack and the adjusting mechanism are arranged, so that the purpose of conveniently adjusting the tension degree of the cable by a worker is achieved.