Self -locking nut on auto steering ware

The utility model discloses a self -locking nut on auto steering ware, including last spiral shell inner wall, self -locking nut, spring column cap and lower swivel nut, locking spring has been set upin original auto steering utensils nut, when the nut is installed, the tight power of spiral shell can be contract on the spring received the bolt, the outwardly directed spring post tail of spring locking port is followed to locking spring compression back, extension power to the spring is locked bolt and nut, locking spring can lock the energy for the nut with becoming flexible conversion of energy when the spiral shell produced not hard up energy instantly, lock the bolt once more on the nut, do not need to screw up once more, the return can be carried out to the wrong external force of moving on the spring receives the nut when needing to dismantle simultaneously, cancellation self -locking function, the spring extends the frictional force of absorbing the bolt and dismantling, make light the taking out of bo