Ask for the internal structure diagram of the ordinary anti theft door lock, and there is an expert

Ordinary anti-theft door locks include lock cylinders, pins, springs, deadbolts, and keys.

1. Lock cylinder: Copper cylindrical lock cylinder, which can be locked or opened when rotating. The lock cylinder is divided into an inner lock cylinder and an outer lock cylinder, and the inner lock cylinder is where you insert the key.

2. Marbles: Copper marbles are divided into inner marbles and outer marbles, cylindrical, of different lengths, and are installed in the round holes of the inner and outer lock cylinders. A lock generally has 3-5 sets of marbles.

3. Spring: Installed in the round hole of the outer lock cylinder. Resist the marbles.

4. Deadbolt: the part that expands and contracts when unlocking. The cylindrical inner cylinder drives the deadbolt when it turns. The padlock is the "nose" that drives the lock.

5. Key: Needless to introduce, there are "serrations" of different heights corresponding to different lengths of marbles.

The inside is probably like this, and the lock is different.

Each manufacturer is different, and the interior is also a little different.

This may not be really searchable, otherwise the thieves who have knowledge and culture and can surf the Internet are not a problem with locks?

Diagram of the solution of the fire door lock.