Now the cylinder lock is actually a relatively rare lock, we see more of the expansion tongue type of door lock, and as the main type of locks, expansion tongue although used more, but in fact the cylinder lock can not be ignored, the following will introduce the use of cylinder lock.
At present, there are many kinds of locks used in the room, and the locks used in the office are cylinder locks. This is a kind of locks with a simple appearance, and its internal structure is a kind of turning tongue. This kind of lock tongue is different from the present telescopic tongue. It is a kind of revolving lock tongue. By matching the lock core with the key, this kind of turn tongue can rotate. When it rotates parallel to the horizontal plane, it is just vertical to the door frame, which has the effect of dislocation, locking the door and unlocking the door. On the contrary, it has the effect of unlocking the lock, which is the current kind of turn tongue. Characteristics. When it comes to cylinder locks, this kind of lock is actually a development of tongue-turning locks. For the more telescopic tongue locks used now, it is still more than tongue-turning locks.