Steel bar anchoring connecting piece

The utility model discloses a steel bar anchoring connecting piece, which comprises an anchoring plate, wherein the anchoring plate adopts an integrated structure and is composed of an upper column, a lower column and a middle frustum, wherein the diameters of the top surface circle and the bottom surface circle of the frustum are respectively the same as the outer diameters of the upper column and the lower column; cambered surface cutting is performed on the conical surface of the frustum from top to bottom in the direction parallel to the middle axial line, so as to enable a plurality of cambered surfaces to be distributed on the circumference of the frustum at intervals; the cambered surfaces extend to the bottom of the lower column from the conical surface of the frustum; the central angle, corresponding to each cambered surface is 70-90 degrees; transparent internally threaded holes are formed in the centers of the upper column, the lower column and the frustum. The steel bar anchoring connecting piece has the advantages as follows: the mechanical performance of the joint can be improved, concrete pouring quality is improved, the joint design of the structure is easy, the anchoring space is increased, and design requirements of construction are efficiently met.