Movable head switch heart rail hook lock ware

The utility model discloses a movable head switch heart rail hook lock ware belongs to the rail with switch hook lock ware field, including the double threaded screw, the middle part of double threaded screw is fixed with the plane formula fixed plate, and the both ends of double threaded screw wear to be equipped with the movable hook that the bayonet socket is relative respectively, two movable hooks have all set locking mechanism, locking mechanism include with double threaded screw threaded connection's lock nut with overlap in the snap ring of double threaded screw, lock nut is located the outside of movable hook, and the snap ring is located and is one wholly between movable hook and the lock nut and with lock nut, the outside terminal surface of two movable hooks all is equipped with the lock tube, and lock tube female connection has locking screw, and locking screw's up end is less than the up end of lock tube, the lockhole that is provided with on the circumference of snap ring that a plurality of ed