Manufacturing method of marble lock cylinder

1. This utility model relates to the field of locks, in particular to a marble lock cylinder.

Background technique:

2. The lock is used for anti-theft. The anti-theft level of the lock is limited by the structure of the lock core.

3. The most widely used lock cylinder is generally the pinball lock cylinder. The structure of the pinball lock cylinder mainly includes the lock cylinder. The lock cylinder rotates with a lock cylinder shaft, and both the lock cylinder and the lock cylinder shaft are provided with several radial bullet holes. , The bullet holes of the lock cylinder correspond to the bullet holes of the lock cylinder shaft, the bullet hole of the lock cylinder is placed with the first bullet, the bullet hole of the lock cylinder is placed with the second bullet, and the bullet hole of the lock cylinder is also provided with Spring so that the first pin is close to the second pin.

4. Under the action of the spring, the first pin on the lock core is inserted into the bullet hole of the lock core shaft toward the end of the lock core shaft to lock the lock core shaft to realize the locking of the pin lock core;

5. There is a key hole on the lock spindle, and the end of the second pin away from the lock cylinder is exposed in the key hole. When the matching key is inserted into the key hole, the second pin in the bullet hole of the lock spindle will be affected by the key. The keyhole is squeezed to move in the direction of the first pin, so that each first pin is retracted into the pin hole on the lock cylinder, and the contact surface formed by each first pin and the corresponding second pin falls on the lock In the gap between the core and the lock core shaft, the key rotates, and the key drives the lock core shaft to rotate in the lock core to realize the unlocking of the pin lock core.

6. However, the key hole on the existing lock core shaft is flat, and one end of the second pin is exposed in the key hole. It is easy to be picked by an object such as iron wire that can be inserted into the key hole, or inserted and unlocked by a master key.

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