Wiring structure locked by nuts

The utility model belongs to the technical field of lighting power supply wiring, and particularly relates to a wiring structure locked by a nut, which comprises a connecting male head and a connecting female head, and the connecting male head comprises a first inner frame which is provided with a first annular abutting block; the first inner frame is rotatably sleeved with the first locking piece, the first locking piece comprises a first rotating part and a connecting part which are connected with each other, the connecting part abuts against the first annular abutting block, and external threads are arranged on the outer surface of the connecting part; the connecting female head comprises a second inner frame, and a second annular abutting block is arranged on the outer surface of the middle of the second inner frame; and the second locking piece is rotatably arranged on the second inner frame in a sleeving mode, the interior of the second locking piece abuts against the second annular abutting block, and