In the bedroom, Chen Xin was designing the door of the shelter using CAD drawing software on his laptop.
When the system upgrades items or shelters, they can be modified according to Chen Xin's ideas, so Chen Xin decided to add some of his own ideas to the shelter door.
As the refuge's first portal to resist outside invasion, it is also the strongest defense. In Chen Xin's imagination, the gate of the refuge is more than just a gate.
Before the disaster struck, when everyone in the survival group discussed how to build a doomsday shelter, everyone put forward many plans for this problem.
The original plan was put forward by the big guy who made water purifier equipment. He learned from the federal plan of using abandoned missile silos to convert shelters, and proposed to buy an abandoned air raid shelter and then transform it into a small shelter. Let's work together Live in it and form a small community.
In this plan, the door of the shelter is designed to be a protective screen door with the same level requirements as the national civil air defense project. It is a reinforced concrete structure weighing more than three tons wrapped in steel plates, plus supporting equipment such as poison filtration and air purification. .
According to standards, such a gate structure is sufficient to withstand nuclear bomb shock waves, biological and chemical weapons and poisonous gas during wartime, giving people an incomparable sense of security.
It's just that this plan was abandoned as soon as it was proposed.
Without him, Yanguo would not sell abandoned civil defense facilities, especially at this critical moment when the end is approaching.
So later everyone could only follow the construction plan proposed by Chen Xin, find a hilltop to dig a hole, and then fill it with specially customized container houses to build a shelter.
Of course, the shelter built in this way is not as strong and reliable as the abandoned civil air defense project, but considering that what everyone is facing is not a terrifying thing like nuclear war, this kind of shelter is enough.
After all, what everyone has to face is nothing more than extremely cold temperatures and severe air pollution, both of which are much easier to deal with than nuclear radiation.
The door of the shelter was replaced with a three-proof door that everyone could buy, instead of the protective screen door as previously expected.
Originally, Chen Xin didn't think much about this. The three-proof door he installed was only 20 centimeters thick. If the two doors were locked from the inside, it would be difficult for a tank from outside to remove the two doors. .
But now that the system has been upgraded, Chen Xin feels that he can still make his door stronger and more reliable, and improve his defense a little bit.
In Chen Xin's idea, he would add the current two three-defense doors to three, and renovate the corridor leading into the shelter.
The first door is naturally the outermost door of the shelter. After entering, there should be a disinfection room that can be cleaned and disinfected to clean and disinfect people, vehicles and equipment entering the shelter from the outside.
Although there is no such deadly thing as nuclear radiation in the outside world, since he learned that chemical plants exploded, Chen Xin knew that the air outside was no less deadly than a nuclear bomb being dropped on his doorstep.
Disinfection rooms must be equipped. The toxic and harmful substances that have permeated the air now may not be as deadly as nuclear radiation, but if you are accidentally contaminated, in this era where medical conditions are far inferior to those before the apocalypse, the degree of fatality I'm afraid it's still on top of nuclear radiation.
Apart from anything else, if you are soaked by acid rain, with today's medical conditions, unless Chen Xin comes up with a medical cabin that can repair body tissues, he will be worse than dead.
The acid rain now is different from before the disaster. Before the disaster, the most common symptoms were redness and itchiness on the body, which caused allergies or lung diseases and required medical treatment.
But the acid-base concentration of acid rain now is much higher than before the disaster. If you are exposed to it, it will really corrode your skin.
After the decontamination room, Chen Xin is planning to build a preparation room.
The so-called preparation room is a place used to prepare travel equipment.
Chen Xin plans to put all the protective equipment that may be used when going out here, and also move the garage up.
In this way, preparations can be carried out here, and after everything is prepared, start from the preparation room without the need to put protective equipment into the interior of the shelter.
This will not only free up space inside the shelter, which is now somewhat crowded, but also reduce the possibility of harmful substances from outside being brought into the shelter.
Chen Xin also plans to install another partition door between the decontamination room and the maintenance room to prevent harmful substances from entering the shelter through the air. At the same time, defensive weapons can also be installed between the decontamination room and the decontamination room.
Although Chen Xin does not intend to harm anyone, he still needs to take precautions.
His shelter does not have various defensive facilities compared to the official shelter, and the door outside is not as strong as the official shelter. If someone opens the door, he must have some means of self-protection that can kill the enemy.
The most ideal way is of course to create a laser corridor like the one in the "Resident Evil" movie. No matter how many people come there, they will all die.
But this kind of thing is just a thought. It’s not that it’s impossible to actually get it, but it’s not cost-effective.
Therefore, Chen Xin's plan was to get a heavy machine gun facing the door of the shelter. When an unidentified person or enemy came in, he could shoot directly, which was convenient and quick.
But now that he doesn't have a heavy machine gun on hand, Chen Xin plans to use a bow and arrow transformed into a crossbow instead.
In a sense, using a bed crossbow is even more powerful and more effective than a heavy machine gun.
Even if it is transformed into a repeating crossbow, its lethality is equally impressive. The arrows can also be recycled and reused, which is energy-efficient and environmentally friendly.
After thinking about it this way, Chen Xinxin almost finished the design drawing in his hand.
The first three-proof door is used as the main door. After entering, there is the decontamination room. The decontamination room is connected to the maintenance room. It is connected with a short corridor in the middle. Two partition doors are installed. A repeating heavy crossbow is installed in the corridor. If someone is unidentified, or simply If he is an enemy, then shoot him with sugar-coated haws.
After entering the maintenance room through two partition doors, you have to pass through a three-proof door before you can officially pass through and enter the corridor connecting the shelter.
At the bottom of the corridor is the last three-defense door.
With such protection, Chen Xin feels that the safety of his shelter can be improved a lot.
In addition to protection, Chen Xin also plans to adjust the shortwave antenna and vents to the interior of the shelter to avoid dangers such as enemies cutting off his communications and poisoning the interior of the shelter through ventilation ducts.
Should we also adjust the structure of the corridor? Make it a hidden door on the floor to add another layer of defense
Chen Xin thought about it carefully, but finally gave up the idea. It wasn't that it couldn't be done, but it was just unnecessary. (End of chapter)