Pile body through hole connecting piece

The utility model provides a pile body hole penetrating connecting piece which comprises a precast pile, the cross section of the precast pile is rectangular, two horizontally-arranged penetrating holes are formed in each of two adjacent side faces of the end of the precast pile, the penetrating holes in the two side faces of the precast pile are arranged in a staggered mode, column rods are inserted in the penetrating holes, and the column rods are connected with the precast pile. One end of the column rod is in threaded connection with a nut, the cross section of the nut is rectangular, the end, away from the nut, of the screw rod is fixedly connected with a square head, the upper surface of the nut and the upper surface of the square head are each provided with a vertically-arranged round hole, a double-thread screw rod is inserted into each round hole, and the end of each double-thread screw rod is in threaded connection with a nut. The prefabricated pile connecting structure has the advantages that the c