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The invention discloses an anti-theft door lock comprising a lock shell, a main bolt component, a latch bolt component (9), a bolt shift sleeve component (4), a bolt shift sleeve control component (2), a latch bolt single-control (6), a latch bolt contraction control component (7), a latch bolt extension control component (5), a bolt shift sleeve single-control I (3), a bolt shift sleeve single-control II (15), a bolt shift sleeve return component I (11) and a bolt shift sleeve return component II (14). The anti-theft door lock is characterized in that the bolt shift sleeve control component (2) is opposite to a bolt on the lock shell. Compared with the prior art, the anti-theft door lock with a cylinder hidden in a door, technical unlocking for theft is more difficult for outlaws, and safety is improved.
The invention discloses an anti-theft door lock comprising a lock shell, a main bolt component, a latch bolt component (9), a bolt shift sleeve component (4), a bolt shift sleeve control component (2), a latch bolt single-control (6), a latch bolt contraction control component (7), a latch bolt extension control component (5), a bolt shift sleeve single-control I (3), a bolt shift sleeve single-control II (15), a bolt shift sleeve return component I (11) and a bolt shift sleeve return component II (14). The anti-theft door lock is characterized in that the bolt shift sleeve control component (2) is opposite to a bolt on the lock shell. Compared with the prior art, the anti-theft door lock with a cylinder hidden in a door, technical unlocking for theft is more difficult for outlaws, and safety is improved.
Anti-theft door lock
SUN ZISHENG (author)
2015-09-16
Patent
Electronic Resource
English
IPC:
E05B
LOCKS
,
Schlösser