A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a lock with a back locking function. The lock comprises a lock shell and a lock cylinder; a lower back locking groove communicated with a key hole is arranged on the outer side of the front section of the lock cylinder, an upper back locking groove corresponding to the lower back locking groove is arranged on the lock shell, and a lower back locking block and an upper back locking block which can slide are arranged in the lower back locking groove and the upper back locking groove respectively; a large back locking spring for jacking the lower back locking block and the upper back locking block downwards is arranged on the lock shell, a plurality of lower back locking billiard holes communicated with the key hole are arranged on the lower back locking block, a plurality of upper back locking billiard holes corresponding to the lower back locking billiard holes are arranged on the upper back locking block, and cylindrical lower back locking billiards and cylindrical upper back locking billiards are arranged in the lower back locking billiard holes and the upper locking billiard holes respectively; and back locking springs for jacking the upper back locking billiards downwards are arranged in the upper back locking billiard holes. When an object which is not coincident with a key is inserted into the lock, automatic back locking and violence damage resistance will be achieved; and theft prevention and the violence damage resistance are better. The invention further provides the key matched with the lock.
The invention discloses a lock with a back locking function. The lock comprises a lock shell and a lock cylinder; a lower back locking groove communicated with a key hole is arranged on the outer side of the front section of the lock cylinder, an upper back locking groove corresponding to the lower back locking groove is arranged on the lock shell, and a lower back locking block and an upper back locking block which can slide are arranged in the lower back locking groove and the upper back locking groove respectively; a large back locking spring for jacking the lower back locking block and the upper back locking block downwards is arranged on the lock shell, a plurality of lower back locking billiard holes communicated with the key hole are arranged on the lower back locking block, a plurality of upper back locking billiard holes corresponding to the lower back locking billiard holes are arranged on the upper back locking block, and cylindrical lower back locking billiards and cylindrical upper back locking billiards are arranged in the lower back locking billiard holes and the upper locking billiard holes respectively; and back locking springs for jacking the upper back locking billiards downwards are arranged in the upper back locking billiard holes. When an object which is not coincident with a key is inserted into the lock, automatic back locking and violence damage resistance will be achieved; and theft prevention and the violence damage resistance are better. The invention further provides the key matched with the lock.
Lock with back locking function and key
LUO ZHOUYONG (author)
2015-10-21
Patent
Electronic Resource
English
IPC:
E05B
LOCKS
,
Schlösser