Temporary wire overhead device used in construction site

The utility model discloses a temporary wire overhead device used in a construction site, which comprises a base, and a supporting steel pipe is fixedly mounted on the upper surface of the base; an overhead assembly is arranged at the top end of the supporting steel pipe and comprises a U-shaped steel plate support, a mounting opening is vertically formed in the upper surface of the supporting steel pipe, a nut is fixedly mounted at an opening in the top end of the mounting opening, a screw is mounted in the nut in a threaded mode, and the lower surface of the steel plate support is fixedly connected with the top end of the screw. An insulation pad is bonded in the steel plate support and is made of rubber. The insulation pad can effectively protect the line and can reduce damage caused by electric leakage of the line to a certain extent, the height of the steel plate support can be rapidly adjusted through cooperation of the nut and the screw, aerial work is not needed, cooperation of multiple persons is not