Does anyone know the principle and use of a waterproof copper padlock?

A general padlock has a lock core. In addition to the key hole, there are several round holes on the lock core. These round holes correspond to the round holes on the lock body. A spring and two can be placed inside. Copper marbles of different heights. After the key is inserted, due to the different tooth positions, the two marbles are topped with different heights. If the boundary of the two marbles in all the holes is the same as the circumference of the lock core, the lock core can be in The lock body turned inside, so the lock opened. This is how a normal padlock works.

Utilizing the surface tension of water, the small pores of the umbrella cloth are filled with water, and with the help of the surface tension of the water to form a whole, so as to achieve the effect of waterproofing. The waterproof principle of waterproof gypsum board: The gypsum core and the protective paper are both moisture-proof and added Silicone oil. The treatment principle of moisture-proof is the coating principle, in which the silicone oil envelops the gypsum molecules.

Let me talk about the principle of locking first: there are three shrapnels at the bottom of the lock cylinder. The right side of the shrapnel is fixed on the right side of a beam below the lock cylinder. The left side stretches out. When locking, move the lock cylinder from the left side of the lock along the slot Insert, the shrapnel is pressed tightly during the insertion process. After the lock cylinder is inserted smoothly, the shrapnel naturally pops out. Since the size of the slot is just enough to insert when the shrapnel is pressed tightly, when the shrapnel is opened, it just presses against the inner wall of the left lock, so that the brass lock It was successfully locked, and the upper beam of the brass lock was also inserted into the slot on the right side, so that the things that passed on it could be locked.

Let's talk about the principle of unlocking. In fact, if you understand the principle of locking, the principle of unlocking is very simple. When unlocking, insert the key with the same slot on the top from the right side. After the slot of the key is aligned with the slot of the lock cylinder, continue to push the key forward and move the key forward along the slot, the slot of the key In the process of advancing, just press the popped shrapnel tightly, so that the lock cylinder has no resistance and is pushed out from the left at once. The depth of the slot on the key can ensure that after the key is pushed out of the lock cylinder, it will not fall into the lock shell.