Chapter 84

In the bedroom, Chen Xin is leaning against the bed, using the CAD drawing software on his laptop to design the gate of the refuge.

When the system upgrades items or shelters, it can be modified according to Chen Xin's ideas, so Chen Xin decides to add his own ideas to the gates of the shelters.

As the first door to resist the invasion of the outside world, it is also the strongest defense. In Chen Xin's idea, the gate of the refuge is not only a gate.

At the beginning, before the disaster, when the survival group discussed how to build the apocalyptic shelter, they put forward many plans for this problem.

The original plan was put forward by the big man who made the water purifier equipment. He borrowed the federal plan of rebuilding the shelter from the abandoned missile silo, and proposed to buy an abandoned air raid shelter, and then transform it into a small shelter, where everyone lived together to form a small community.

In this scheme, the gate of the shelter is designed to be a shielding door with the same level requirements as the civil air defense project built by the state. It is a reinforced concrete structure with a weight of more than three tons, wrapped with steel plate, plus supporting equipment such as poison filtering and air purification.

According to the standard, this kind of gate structure is enough to resist the attack of nuclear shock wave, biological and chemical weapons and poison gas in wartime, giving people an incomparable sense of security.

It's just that the plan was abandoned at the beginning.

No other way, Yanguo does not sell abandoned civil air defense facilities, especially at this critical moment when the end is coming.

So later, according to the construction plan proposed by Chen Xin, we had to dig a cave at the top of the mountain, and then fill in the specially customized container houses to build shelters.

Of course, the shelter built in this way is not as solid as the abandoned civil air defense project. However, considering that we are not facing such a terrible thing as nuclear war, this kind of shelter is enough.

After all, we have to face nothing more than extremely cold temperatures and serious air pollution, which are much easier to deal with than nuclear radiation.

And the shelter's door is replaced by the three defense door that you can buy, instead of the shield door that you expected.

Chen Xin didn't think much about it. The three defense door he installed is 20 cm thick. If the two doors are locked from the inside, it's really hard for a tank to remove the two doors.

But now that the system has been upgraded, Chen Xin feels that he can make his door a little more solid and secure, and improve his defense.

In Chen Xin's idea, he will add the current two three defense doors to three, and transform the corridor into the refuge.

The first door is naturally the outermost door of the shelter. After entering, it should be a disinfection room that can be cleaned and disinfected to clean and disinfect the personnel and vehicle equipment entering the shelter from the outside.

Although there is no such deadly thing as nuclear radiation in the outside world, Chen Xin knows that the air outside is no less deadly than a nuclear bomb in front of his home after he knows that all the chemical plants have exploded.

The decontamination room is absolutely necessary. The toxic and harmful substances that have been diffused into the air today may not be as lethal as nuclear radiation, but if they are accidentally contaminated, in this era, the medical conditions are far worse than those before the end of time, and the lethal degree may still be above nuclear radiation.

Apart from other things, if you get drenched in acid rain, with today's medical conditions, unless Chen Xin comes up with a medical cabin that can repair the body tissue, you will only live rather than die.

Today's acid rain is not the same as before the disaster. Before the disaster, the most important thing is to get red and itchy, cause allergy or lung disease, and need to see a doctor.

But now the acid-base concentration of acid rain is much higher than that before the disaster. If it is drenched, it will really corrode the skin.

After the decontamination room, Chen Xin is going to build a preparation room.

The so-called servicing room is used to prepare travel equipment.

Chen Xin plans to put all the protective equipment he may use when going out here, and move the garage up.

In this way, it's possible to get everything ready here and start from the preparation room without having to put the protective equipment inside the shelter again.

This can not only make room for some crowded shelters, but also reduce the possibility of external harmful substances being brought into the shelters.

Between the decontamination room and the preparation room, Chen Xin also plans to install another partition door to prevent harmful substances from entering the shelter through the air. At the same time, he can also install defensive weapons between the preparation room and the decontamination room.

Although Chen Xin does not intend to harm others, he should be on guard.

This is no better than the official refuge. All kinds of defense facilities are not as strong as the official refuge. In case the door is opened, he must have some means to protect himself against the enemy.

The best way, of course, is to build a laser corridor like the one in the biochemical crisis movie. All the people who come here are dead.

But Chen Xin is just thinking about it. Actually, it's not that he can't get it out, but it's not cost-effective.So Chen Xin's plan is to get a heavy machine gun right in front of the gate of the refuge. When an unidentified person or enemy comes in, he will shoot directly, which is convenient and fast.

But now he doesn't have heavy machine guns on hand. Chen Xin plans to replace them with bows and arrows.

In a sense, the bed crossbow is even more powerful and effective than the machine gun.

Even if it is transformed into a crossbow, its lethality is also unknown. Arrows can also be recycled, which is highly efficient, energy-saving and environmental friendly.

With this in mind, Chen novice's design is almost done.

The first three defense door is used as the gate. After entering, there is the decontamination room. The decontamination room is connected with the servicing room, and the middle is connected with a short corridor. Two partition doors are installed. In the corridor, continuous fire heavy crossbows are installed. If someone is unidentified or is simply the enemy, shoot him a string of sugar gourds.

After entering the preparation room through two partition doors, it is necessary to pass through a three defense door to enter the corridor connecting the refuge.

At the bottom of the corridor is the last three defense door.

With such protection, Chen Xin feels that the safety of his refuge can be improved a lot.

In addition to protection, Chen Xin also plans to adjust the shortwave antenna and air vent inside the shelter, so as to avoid the danger of the enemy cutting off their own communication and injecting poison into the shelter through the ventilation duct.

Should we even adjust the structure of the corridor? Make a floor concealed door and add another defense?

Chen Xin thought it over carefully, but finally gave up the idea. It's not impossible, it's just unnecessary.

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