What is the structure of the supermarket product anti-theft buckle?

When you go shopping in the supermarket, you may notice that there are various anti-theft buckles on the products. Its function is to cooperate with the anti-theft device in the supermarket to prevent the goods from being stolen. Many people may have tried it. The anti-theft buttons on the products are It is difficult to remove it directly by hand, and it is difficult to open it even if it is pulled by force. So what is the structure of this supermarket product anti-theft buckle? The following editor will introduce it to you in detail.

The main components of the anti-theft buckle for supermarket commodities are steel needles, lock cylinders and plastic shells. Among them, the lock cylinder is more important. There are balls in the lock cylinder, which is the principle of the cone. The closer the balls slide to the top of the cone, the more steel balls It is normally in a closed state by the spring thrust, and when the steel needle is inserted, the steel ball is tightly buckled in the gap of the steel needle, and the middle needle is fastened dead. That's why we can't pull the needle core directly, and the more we pull it, the closer it will be.

To open the anti-theft buckle of supermarket products, we need a tool - anti-theft buckle extractor. Before learning to use this tool, we must first know the working principle of the anti-theft buckle. The working principle of the commodity anti-theft buckle is very clear to everyone. It uses It is the principle of magnetic induction. The anti-theft device at the entrance of the supermarket generally consists of a transmitting antenna and a receiving antenna. A signal scanning area will be formed between the two antennas. When the product with the anti-theft buckle passes through this signal scanning area, the magnetic The anti-theft buckle will resonate with the signal area to generate current, and then trigger the alarm. The commodity anti-theft buckle is also reversely operated according to this principle. The buckle remover is actually a super-strong magnet. When it is placed on the magnetic buckle, the magnet will suck the three steel balls in the lock cylinder away from the steel needle, and the steel needle can be smoothly released from the magnetic buckle. pull it out. At this time, the supermarket product anti-theft buckle is opened.