Doomsday Bunker Upgrade

When Chen Xin was thinking about how to make snow crawler wheels, the atmosphere in the city became increasingly tense.

Although the surface is calm, in fact, beneath the surface calm is a monstrous wave that is poised to break out.

At the entrances of the major shelters, there are strict checkpoints set up by the city government's management personnel, the police and the armed police, and strict inspections are carried out on everyone entering and leaving.

Managers are responsible for conducting identity checks to ensure that every person entering and exiting through the gate of the shelter is well documented and has a city-issued shelter-in-place and pass.

This is a management system that was implemented after the disaster. Although the pass and residence permit system was also implemented before, the control was not very strict. Just like the ID card before the disaster, many people usually do not even bring it with them, but if To be strictly checked, everyone must have it, and they can match the number.

The police are responsible for conducting security checks to ensure that people entering and leaving the shelter do not carry dangerous items or prohibited items. As for the armed police, they are responsible for maintaining order on the scene. Suspicious persons are handed over to the police for arrest and detention. Arrest, the priesthood of resistance can be directly killed.

Under the close cooperation of the three, although I dare not say that no water leaks, at least it looks orderly on the surface, and criminals with ulterior motives will never be able to fish in troubled waters.

Generally, shelters are so heavily guarded, and even more so in the shelters where the city hall is located.

As the current location of the city government office, it is also the location of the joint investigation team. The soldiers transferred from the joint investigation team from Star City are stationed here at the city government, so that the inspection and defense at the city government gate is one higher than other shelters. The level has reached the point where not even a fly can fly in, even though there are no flies now.

However, although the screening of entering and leaving the shelter is very strict, if you don't come out and just stand at the door of the shelter and smoke a cigarette, it is relatively easy and simple.

Because the interior of the shelter is closed, it is very troublesome to want to smoke.

After all, smoking in an airtight environment will leave an unpleasant smell if the smoke cannot be dissipated, and smoking in a shelter can easily cause safety hazards such as fire.

Therefore, smoking inside the shelter is prohibited, but cigarettes themselves are not prohibited, but if you want to smoke, you need to come to the door of the shelter and smoke in a place with better ventilation.

Considering the pressure of life in the apocalyptic environment and the fact that there are more people addicted to smoking, each shelter has designated a small area at the entrance as a smoking area.

It’s just that the so-called smoking place is just a corner affected by the wind. Although there is no cold wind to roll up the ice and snow and pat it on the face, standing smoking a cigarette is basically the limit. Standing in such a place for a long time, two The foot is not unconscious, but will be frozen in the physical sense.

But for smokers, being able to smoke a cigarette in the current environment is a very rare enjoyment. Although cigarettes are very expensive, they need to spend a lot of food and materials to exchange them in the black market, or have enough contributions and work points. A very rare pack can be obtained from the supplies issued by the shelter every month.

It is naturally the same for officials who have just finished a meeting in the city hall, especially the boring and mental exhaustion brought about by a long meeting, a cigarette can indeed have a refreshing effect.

Although they are not lacking in cigarettes as the management, they still have to follow the regulations to come to the smoking area at the door.

Because the smoking area is located inside the checkpoint at the entrance, the police and armed police who are in charge of the inspection just glanced here and paid little attention, and it is even less likely for the staff to offend their superiors.

As a result, there were a few more smokers standing and smoking at the entrance of the municipal shelter.

"Fortunately, I still have a cigarette here. Otherwise, people can't stand this continuous meeting." It was a slightly wealthy official who spoke with a little Xingcheng accent, indicating that he was from the provincial government. identity of.

A city official next to him who was also smoking couldn't help but echoed: "Who said no! In this environment, it's a blessing to have a few cigarettes to smoke, otherwise people can't bear it if they get addicted to it."

Several officials came out to smoke during the break in the meeting, and at this time, everyone didn't care about their identity or the difference between the provincial government and the city government, and a few people chatted about tobacco-related topics.

However, a cigarette didn't burn for a long time, and the rest in the middle of the meeting was also not long. A few people soon finished smoking their cigarettes and prepared to avoid the inside of the refuge to continue the meeting.

It's just that one of them fell behind and didn't seem to want to go in yet.

This behavior naturally caught the attention of others, and one of the officials asked, "Secretary Li, are you still going in?"

"I'll go in after I finish smoking this cigarette." The person who was shouted raised his half-smoking cigarette and smiled.

The person who asked him naturally understands it very well. Now it is not as precious as before. A cigarette is very precious. Naturally, it is necessary to finish smoking it, and it is impossible to put it out after half of it.

The other officials didn't ask any further questions. A group of people who had finished smoking all returned to the shelter one after another, leaving only Secretary Li, who was still smoking.

However, the time for half a cigarette is also very short. When the others are almost gone, the cigarette in Secretary Li's hand is almost finished.

He finished his last two puffs and threw the cigarette butt into the trash can beside him.

But just when Secretary Li was about to go back, he found that the shoelaces on his feet were loose, so he squatted down to tie the shoelaces again.

After Secretary Li finished tying his shoelaces, he stood up and walked inside the shelter. When he met the cleaner who came to clean up, he nodded politely as a greeting.

The cleaner also greeted Secretary Li politely. After he passed, he came to the smoking area where a bunch of officials smoked just now, swept the cigarette butts on the ground, and poured the contents of the trash can into his own bag.

There is nothing suspicious about this, so the police and armed police at the door did not pay attention to this side. They paid more attention to the outside of the shelter, watching everyone entering and leaving the shelter vigilantly.

However, no one noticed that when the sanitation worker put the trash can back, there was already a note in his hand.

The sanitation worker cleaned the ground before walking back to the shelter with his bag full of garbage.

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In Chen Xin's shelter, Chen Xin quickly drew the design of the snow crawler wheel.

The connection between the snow track wheel and the wheel is still a problem, but after thinking about it, Chen Xin decided to add a chain on the bottom of the car and a fixed rod on the hub to increase the fixed point, and the clip on the wheel together. The snow crawler wheels are fixed to the wheels so that they cannot slip off.

It's easy to remove it when it's not needed, just unscrew the fixing rod on the hub and the chain on the bottom of the car, fix the snow track wheel, and pull the wheel out of the snow track wheel.

Chen Xin looked at the drawings he had drawn and felt that it should not be much different from the original. Even if there were some differences in structure and details, it was a small matter.

The next question is of course how to make this thing. Parts processing is naturally not a problem. With the existence of the system, Chen Xin can easily obtain the parts he wants, but he still can't make the belt without rubber.

Before the disaster, rubber was a very common industrial material, and various rubber products also flooded people's lives.

As an important industrial raw material, whether it is natural rubber raw materials from Southeast Asia or chemical rubber obtained through petrochemical technology, it was very easy to obtain before the disaster.

But unfortunately, it is a bit difficult to obtain rubber now after the disaster.

In addition to the rubber raw materials left before the disaster, it is estimated that there should be no natural rubber. After all, even if those rubber trees are not burned, now that the world has entered an ice age, those rubber trees have also lost their growing environment, and no one is going to tap rubber.

On the contrary, chemical rubber should still be produced in the country. After all, this is a very important industrial raw material, and it is used in various aspects. Even if chemical rubber is not as good as natural rubber, in today's environment, it is impossible to specially build plantings. Greenhouse to grow rubber.

According to Chen Xin's estimation, the country should have retained some industrial facilities and oil wells before the disaster. With these preserved industrial facilities, production should have resumed after a short period of half a year.

It's just that now all traffic is in a semi-cut state, only railway transportation can go, and the entire road network is almost paralyzed. Even if rubber is produced, it will be shipped to the places where it is most needed, without wasting precious Production capacity and transportation capacity are sent to this city, a non-key industrial city.

Although there are many large-scale chemical plants in the city, which are important industrial production enterprises, in the previous disaster, the chemical plants around the city were affected by the fire, and it is difficult to count how many equipment can be preserved.

After all, the chemical factory itself is a flammable and explosive place, which can be said to be familiar to Chen Xin, who grew up in a chemical factory.

Therefore, there is almost no industrial base in this city. Only the factory area under the jurisdiction of the municipal government can produce some materials needed by various shelters, and these productions do not say that there is no chemical rubber, and even if there is, Chen Xin can not get it. .

So if Chen Xin wants to use rubber tracks, the only way is to get the rubber products left before the disaster, and use the system function to extract the rubber that can be used as raw materials.

The most suitable rubber products are naturally tires.

The danger of chemical plants is that a cigarette butt can catch fire, and after the fire, it is a major safety accident or a major safety accident