Steel binding device

The utility model discloses a steel material strapping device, including lower slide rail, slide carriage, upper slide rail and hand-held strapping device, the slide carriage has more than two, each slide carriage includes the pulley, support plate, elevating mechanism and detachable bracket that set up from bottom to top in proper order, the pulley is connected with the lower slide rail, the upper slide rail is connected with the support plate, and the hand-held strapping device is connected with the upper slide rail. The bottom of the detachable frame support is detachably connected with the top of a lifting rod of the lifting mechanism in an inserted mode, the upper sliding rail is arranged over the lower sliding rail, and the handheld strapping device is connected with the upper sliding rail through the upper sliding rail connecting mechanism. The upper sliding rail connecting mechanism comprises an upper sliding rail connecting rod and an elastic connecting rope which are sequentially arranged from top t