High security bullet lock

The utility model discloses a high-security marble lock. The lock cylinder of the marble lock comprises a plurality of wafer-shaped components of the same shape and the same, and the locking element mounting hole and the locking pillar are opened on the wafer-shaped component. a return spring mounting hole and two marble mounting holes parallel to the axis of the locking post mounting hole, the inside of the locking post is provided with two parallel flanges, and the marble is opened in the same shape as the flange on the locking post The groove, when the key is inserted into the keyhole of the lock cylinder, the two flanges on the locking post respectively cooperate with the grooves on the two marbles. The utility model adopts the superimposed structure of the disc-shaped component and the double-flange structure of the locking column, which can realize the installation of two rows of marbles matched with the locking column in the lock cylinder, and the superposition manner of the disc-shaped components enables the lock core structure to be manufactured and processed. And assembly, the lock core of the two rows of marbles greatly improves the rate of change of the marbles, increases the key amount of the locks, greatly increases the difficulty of opening the technology, and improves the safety performance of the marble locks.