The working principle of the ordinary lock core:
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1 The key is the pin in the lock core, it has long and short, there is a row of holes on the lock core, each hole is installed with a pin, the key into the lock core, the amount of the pin in each hole is just like the appearance of the lock core, not high or low,
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2 At this time, put the lock core into the lock, and then put a marble and a small spring into the corresponding hole, seal the hole, and the lock is formed.
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3 If you change a key, the depth of the mouth on the key is not the same, the height of the marble on the lock core is not the same, so the lock core is stuck by the marble and cannot turn, which plays the role of insurance.
Key chip lock: on the basis of the traditional key lock, implant a chip in the key, open this lock, the key and chip must all coincide, this double insurance structure reduces the possibility of the lock being opened, such locks belong to the high-end products of the lock.