COMBINATION LOCKS WITH A DISC-LOCK MECHANISM TO PREVENT CODE CROWDING

Abstract

The invention relates to a mechanical combination lock with a disc locking mechanism designed to enhance resistance to force-sensing code cracking. The lock comprises a lock body, shackle, number discs, and a locking mechanism housed within the lock body. The locking mechanism consists of a vertical rod, a force-transmitting ball bearing, a horizontal rod, a locating ball bearing, and a compression spring arranged in a coordinated manner to transmit force from the shackle to the locating ball bearing. When the shackle is locked, the locking mechanism applies additional pressure to the locating ball bearing to increase the rotational resistance of the number discs. When the user presses the shackle to enter the code, the locking mechanism is released, allowing the number discs to rotate with resistance primarily generated by the locating mechanism. This solution contributes to limiting force-sensing code cracking methods while ensuring convenient unlocking operation.

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