The real mine fuze explodes as soon as it is stepped on, and the opened spring striker is already in the firing state, and then it is loosely stuck in position. Only when unlucky people step on it will it "stand" over the bayonet, then directly hit the gunpowder and quickly detonate the whole mine.
In other words, there is no "ball pen rebound" link in the mine, and the spring is stuck by the ball pin. After passing this firing pin, it immediately becomes a rifle that pulls the trigger, and the firing pin will be hit by lightning.
Lightning suppression principle
We can look at the fuse of a mine and think of the small ball called "the striker holds the ball", which is the striker called "the striker sets the ball". The striker made a shallow bulge outward and was just caught by the ball.
If a person steps on a mine, his body weight will step on the firing pin from this "firing pin fixing ball", so that the firing pin will be released and touch the fire cap almost near the bottom, and both will be triggered.
Because the types of mines are different, the fuse design in different countries is different, so we can only understand this structure in principle, but we can't sit in the right place. But in a word, it is impossible for a standard anti-infantry mine to have a principle or structure. Either it explodes when stepping on it, or the weight of stepping on it is not enough to open the safety, so that the mine can't release the hammer. At this time, you don't have to worry about "loose foot explosion". Just gently lift your legs and hide.
Of course, there is also a possibility that the mine has been buried underground for a long time, which has led to the failure of the ore body. Generally speaking, a mine won't last long. The picric acid mines prevalent in World War II will also corrode the iron shell, form picrate, and cause allergic explosion. However, judging from the mines left over from war that have appeared from time to time in these years, it is not impossible for them to maintain a "quantum" working ability.
How did Song Falei come from?
In some areas that rely on mine defense all the year round, affected by various natural changes, there will also be many broken mines, and stepping on them may not necessarily explode. It depends on personality.
So how did "Song Lei" come from? This kind of mine generally belongs to the "booby trap" designed on the battlefield, that is, the mine provided for engineers or soldiers with special tasks to make traps.
In order to be more convenient to use, they are often not designed as special integral mines, but only in the form of fuzes, which are used together with other explosives. For example, the U.S. military's M 1 loose fuze can be screwed on a Grenade and inserted into TNT, or it can be directly connected to make a thunderbolt or a trip.
For example, the U.S. military's M 1 loose fuse, as shown above, uses TNT explosive box, and it can be used when plugged in. Explosives are just warheads, and fuzes are the core to determine the way mines explode.
In fact, people don't do anything against the sky on these simple explosive devices. They are just the simplest spring mechanisms.
The secret of the so-called "loose hair" is very simple, that is, a cover plate that bounces outward. When using the release function, people will press it under the heavy object after opening the release function. If someone removes a heavy object, the cover plate of the fuse will be released outward, thus igniting the bomb.
Therefore, from the design environment of Songfa Mine, it is generally designed as a chain explosive device, such as setting it under a normal mine to kill the mining engineer, or pressing it under an eye-catching obstacle to kill the people who move things when people move obstacles. Or when retreating, it can be buried under sandbags and weapons in bunkers, which poses a great threat to the other side to clean the battlefield.
After understanding this principle, we will find that sending thunder is actually a reverse design. Ordinary mines step on them to blow them up, and pine thunder doesn't have to step on them, only when it is released.
In other words, even if you step on a thunderbolt, you don't have to do any film and television drama tricks such as taking off your shoes. Just press the lid to keep it from turning out. You can even dig it out and tie it into zongzi to play with.