Connecting component and scaffold for building construction

The utility model relates to the technical field of scaffold connection, in particular to a connecting member and a scaffold for building construction, which are characterized in that a bottom plate is arranged on the side surface of the connecting member, a side plate is arranged on the side surface of the bottom plate, a lifting groove is formed in one end of the connecting member, and a positioning plate is arranged in the lifting groove; the square tube connecting piece has the beneficial effects that when a square tube needs to be fixedly connected during use, one end of the square tube is firstly placed on the surface of the bottom plate, then the square tube is propped by utilizing the side plate, and then the lifting nut is rotated to enable the positioning plate to move downwards, so that the square tube can be clamped by utilizing the matching of the positioning plate and the bottom plate to be fixedly connected, and the practicability of the connecting piece is improved; in this way, the problems t