I’ve used this filing cabinet for years and never thought about this problem until the key almost broke inside… How does a filing cabinet lock work? Is this kind of lock really reliable?
Filing cabinet locks typically operate via a lock cylinder and an internal linkage locking lever or cam mechanism.
Whether it's a key lock or a combination lock, inserting the correct key or entering the correct combination will cause the internal mechanical device (such as a pin tumbler lock, cam, or locking lever) to rotate or shift, thereby releasing or locking the drawer.
In the locked state, the locking lever will engage the drawer's slide rails or stop, preventing the drawer from being pulled open; after unlocking, the locking lever moves away, and one or more drawers can be opened smoothly.
Some filing cabinets also integrate a linkage anti-tipping structure or intelligent technologies such as electronic or biometric identification to enhance security and usability.
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