Embedded connecting piece for fabricated wallboards

The utility model relates to an embedded connecting piece for a fabricated wallboard, belongs to the field of building connecting pieces, and aims to improve a connecting method of the wallboard. The connecting device comprises a connecting rod and an eccentric wheel screw which are fixed on a wallboard. One end of the connecting rod is designed as an expansion bolt and consists of a conical end, an iron sheet cylinder and a nut; the other end is a bolt head for connecting an eccentric wheel; the eccentric wheel screw is mainly used for connecting eccentric heads. The utility model is mainly applied to the corners of the wall body and the mutually vertical parts of the wallboards. The connecting piece is completely embedded in the wallboard, has a hiding effect, meets the requirement of avoiding occupying extra space, and effectively prevents the cold and hot bridge phenomenon from occurring. Construction is easy and convenient, components are small, large mechanical equipment is not needed, installation is e