Special tool for binding building steel bars

The utility model relates to the technical field of buildings, and discloses a special tool for binding building reinforcing steel bars, which comprises a reinforcing steel bar, an iron wire and two connecting rods, the iron wire is wound outside the reinforcing steel bar, the rod walls of the two connecting rods are fixedly connected through a fixing rod, and cavities are respectively formed in the rod walls at the lower ends of the two connecting rods. Sliding blocks are slidably arranged in the two cavities respectively, strip-shaped openings are formed in the side walls of the two cavitiesrespectively, the two sliding blocks are fixedly connected through a first push rod, the rod walls of the two ends of the connecting rod are slidably connected with the corresponding strip-shaped openings respectively, a first through hole is formed in the fixing rod, and a positioning mechanism is connected to the interior of the fixing rod. The upper ends of the two connecting rods are fixedlyconnected with grabbing ro