Novel steel structure connecting piece

The invention relates to the technical field of steel structure connecting pieces, in particular to a novel steel structure connecting piece. The novel steel structure connecting piece comprises a steel pipe, an upper assembly and a lower assembly, the upper assembly and the lower assembly are matched with each other, the steel pipe is located inside the lower assembly, the cross section of the steel pipe is rectangular, the lower assembly comprises a U-shaped frame, a movable plate, a first sliding block, a first oil guide pipe and a second oil guide pipe, a first sliding groove is formed in the bottom face of the inner surface of the U-shaped frame, the inner surface of the first sliding groove is slidably connected with the first sliding block, and the cross section area of the first sliding block is smaller than that of the first sliding groove. According to the novel steel structure connecting piece, by arranging the lower assembly, a certain moving range can be provided for the steel pipe, so that the p