How anti-theft hard tags work

We all often go to some clothing stores to buy clothes, I don't know if you have noticed that there will be some anti-theft hard tags of different shapes in the hidden corners of clothes, which is used to help clothing stores carry out anti-theft of goods in the store, because clothing stores are open retail places, and clothing goods are often stolen when the flow of people is large. Many people are curious about how this small  anti-theft hard tags carries out anti-theft of clothes, and the following Xiaobian will introduce you to the working principle of store clothes anti-theft buckle.

First of all, we have to know how it works, we must first know its structure, the main composition of the store clothes anti-theft buckle is steel needles, lock cylinders and plastic shells, of which the lock cylinder is more important, the lock cylinder has balls inside, that is, the cone principle, multiple balls slide to the top of the cone closer the distance, the steel ball is normally closed by the spring thrust, the steel needle is inserted when the steel ball is tightly buckled in the gap of the steel needle, and the needle in the middle is buckled. This is why we can't pull off the needle directly, and the more we pull it, the closer it will be. To open the anti-theft buckle we need a tool is the anti-theft buckle unbuckle, the buckle is actually a super magnet, when it is placed on the magnetic buckle, the magnet will the three steel balls stuck with steel needles in the lock cylinder suck away from the steel needle, the steel needle can be smoothly pulled out of the magnetic button. At this time, the anti-theft buckle is opened, and it can be removed from the removal.

And the working principle of the store clothes anti-theft buckle is also very simple, the working principle of the anti-theft buckle actually uses the principle of magnetic induction, the anti-theft deduction of the above introduction of the mechanical structure, in the plastic shell there is also a magnetic induction coil, in the store door of the anti-theft device is generally composed of a transmitting antenna and a receiving antenna, between the two antennas will form a signal scanning area, when the goods placed in the anti-theft buckle pass through this signal scanning area, the anti-theft buckle with the magnetic induction coil will resonate with the signal scanning area, The central controller of the immobilizer will amplify this resonance signal into an electrical signal, that is, current, so as to turn on the power supply of the sound and light alarm, and then trigger the alarm. The above is a detailed introduction to the working principle of the anti-theft buckle of store clothes, I hope it can help you.