Special connector for bailey bridge

The utility model discloses a Bailey bridge special joint, a bolt comprises a bolt head and a bolt bar, the bolt head and the bolt bar are in an integrated structure, the bolt bar slidably penetrates through a connecting piece and a Bailey piece, a tightening nut is in threaded connection with the bolt bar, the outer surface of the bolt bar is symmetrically provided with limiting grooves, and the limiting grooves are in threaded connection with the bolt bar. The end faces, close to each other, of the two limiting grooves are provided with a plurality of locking holes at equal intervals, beret pieces are connected through connecting pieces, after the beret pieces are tightened and fixed through bolts and tightening nuts, the bolt rods are sleeved with the limiting sleeves, when the limiting sleeves move along the bolt rods, the locking rods move along the sliding grooves, and the end faces, away from the compression springs, of the locking rods are inclined faces. The locking rod is inserted into the locking h