Keel frame connecting structure for house building construction

The utility model relates to the technical field of building engineering, in particular to a house building construction keel frame connecting structure which comprises side plates, a top plate, a bottom plate and a pressing end plate. The two side plates are parallel to each other, and the middle parts of the upper ends of the side plates are provided with downward concave notches; the top plate and the bottom plate are arranged at the upper ends and the lower ends of the two side plates correspondingly, and the shapes of the cross sections of the top plate and the bottom plate are the same as the shapes of the edges of the upper ends and the lower ends of the side plates correspondingly. The pressing end plate is transversely arranged among the two side plates, the top plate and the bottom plate; a locking screw is fixed to the upper end face of the pressing end plate and penetrates through the middle of the top plate in a sliding mode, and the locking screw is sleeved with an upper nut and a lower nut. The