Scaffold and wall frame lap joint device for building outer wall construction

The utility model relates to the technical field of building construction, in particular to a scaffold and wall frame lap joint device for building outer wall construction, which comprises two groups of fastening pieces, each fastening piece comprises two fastening plates, the two groups of fastening pieces are connected through a rotary traction piece, a sleeve is arranged on the surface of one fastening piece, and the other surface of the other fastening piece is provided with a sleeve. The sleeve is arranged on the outer side of the rotating traction piece in a sleeving mode, a positioning inserting piece is arranged between the sleeve and the rotating traction piece, the positioning inserting piece is fixed to the surface of the regulation and control pushing piece, a limiting seat and a pushing screw rod are arranged on the surfaces of the two buckle plates respectively, the end of the pushing screw rod is sleeved with a bearing seat, and the bearing seat is fixed to the surface of the clamping plate. Th