After mixing dinner, Li Guocheng said goodbye and went home.

In the study of the old Zhao family.

Dad Zhao made tea for Mr. Zhao and put it in front of the other party, took out half a bottle of liquor from his arms, poured about 2 taels into the enamel jar in front of him, and then put the wine bottle in the bookcase and blocked it with a book.

The old man looked at it and pursed his lips, but did not speak. Dad Zhao made a chair back as if he had nothing to do, picked up the cup, took a sip gently, and bared his teeth and looked intoxicated.

"Boss, what do you think?" , Old Man Zhao waited for Zhao's father to look at him and said such a clueless sentence.

Zhao's father understood, "It seems that what Li Guocheng said in the past may be true, he is a leader in both understanding and innovation." I just can't understand how he is so powerful as a junior high school student", and shook his head and smiled bitterly after speaking.

"Genius haven't we seen yet? They cannot be viewed in a conventional light. But there are very few people who can really become talents, and what Li Guocheng appreciates most is that all his inventions and creations are very down-to-earth, and they can fundamentally enhance the strength of the country's industrial base. This is the foundation for the sustainable development of the country".

The old man now feels more and more the importance of science and technology, and it is even more difficult to play a role in the country's economic construction. At present, the country's economy is in difficulty, and a lot of scientific and technological investment is a bottomless pit, and even if it succeeds, it cannot produce actual economic benefits.

"Since the war with Soviet Russia, my country's science and technology have not made substantial progress, but more digestion and imitation. Compared with 10 years ago, the technological gap with the West is getting wider and wider. Some urgently needed high-tech products, even if we use 10 times the price, we are desperate and aggrieved."

The old man deeply felt that the current situation at home and abroad was grim, and Li Guocheng's appearance was like a little light from the dark sky in the distance, which made the old man have more expectations for the future.

"Yes, Dad, what makes people even more distressed is that in recent years, almost all the projects submitted for approval in various places have been repetitive construction, without any scientific and technological content, but they have to be approved, which occupies a small amount of budget funds", Zhao's father was also helpless.

"There will be a bright day, and now we are trying to do our own thing, to protect the future hope like Li Guocheng, and to give them more room to grow."

The old man picked himself up again.

"Yes, Dad, we have informed the rolling mill to strengthen the security of the laboratory, and at the same time to reduce the exposure of Li Guocheng, and the entire laboratory will share the pressure. Fortunately, Xiao Li's age has become the best protective color for him."

"Quietly raise the level of secrecy of the entire laboratory, and you can make some camouflage on the public information."

"Okay, Dad".

Li Guocheng, who returned home, found that Zhao Ting and Aunt Liu were really not there.

I went to the kitchen, lit the stove, filled the kettle and put it on the stove, sat down next to it, and started carving. After the five thermos at home were filled with hot water, Li Guocheng returned to the living room, spread out a drawing on the table, and began to sketch.

Looking at the time, they hadn't returned home yet, and they knew that they were handling the case again.

Every time they went on a mission, Li Guocheng's heart was full of worries. But as the number of times increased, he also let go, and now he thinks more about how to strengthen them.

The design drawings of the gun holster and bulletproof shield last time, Li Guocheng drew it by the way, and handed it to Zhao Ting, I heard that it has been produced and equipped in small quantities.

I've been thinking about how to improve their strength before, and I originally wanted to think of a way to use firearms, and I've already started to think about it, and the goal is a crossbow. Today, on the way to Mr. Zhao's house, I thought of how to improve the strength and stability of the senior fitters in the rolling mill, and a mechanical exoskeleton design that had been equipped with the army in later generations naturally appeared in my mind.

It is the second-generation general external force skeleton, which is a very mature passive mechanical skeleton. It perfectly solves the two difficulties that Li Guocheng has been thinking about: Zhao Ting's strength strengthening and fitter's strength assistance.

The principle of weight-assisted assistance of the second-generation Puli exoskeleton is: a closed cable is wrapped around the upper and lower leg protectors, and the elastic energy storage module built into the upper and lower leg protectors provides tension for the cables, and the cam structure at the knee joint will increase the tension of the cable when the knee joint is flexed, providing a moment for the knee joint to resist buckling.

Therefore, even when the knee joint is bent, the weight of the back can be transmitted to the ground through the leg bar, so as to share the weight for the human knee joint and achieve the purpose of weight-bearing assistance.

To put it simply, it also adds elasticity to the knee joint, so that you can't kneel, but the spring is installed elsewhere. It is both protective and helpful.

Later designs use a large number of engineering plastics or carbon fiber, which can only be replaced by aluminum alloy, and a layer of cowhide is added to the protective gear, which is wear-resistant and can play a role in protecting the skin.

The buckle is made of all-steel, except for a little heavier, there is nothing wrong with the others.

The general scheme was all run through, and the 3D modeling was carried out in my mind, and the ergonomics were optimized.

A foldable weight tray was added to the back, and a detachable weapon pendant was added to the crotch and chest and abdomen. After simulating again, the finished product amazed him.

Perfect, sleep.

The next day, I came to the laboratory early and started the processing of parts.

"Director Li, what are you busy with?"

Zhou Xiaojuan's voice suddenly appeared in Li Guocheng's ears, waking Li Guocheng up from his selfless processing work.

From the day she knew that Li Guocheng received the certificate, Zhou Xiaojuan ignored him for several days. Maybe it's because of her personality, it didn't take long for her to get out of that state and no longer avoid Li Guocheng, and the two got along normally.

Today, he exposed his true nature again, and he became shocked in front of Li Guocheng.

"Oops, scare me," Li Guocheng said with a smile, and then began his work again.

"This is an artifact. I'll know my new design when the time comes", Li Guocheng deliberately bought a pass.

"Oh, director, just tell me", Zhou Xiaojuan issued a coquettish tone, fortunately she didn't grab his arm and shake it like in the past, it seems that she really let go, Li Guocheng felt at ease for a while.

Li Guocheng did not continue to pretend, "It is a purely mechanical auxiliary exoskeleton, just like adding another skeleton to the outside of our body, and transferring the weight to the ground through mechanical transmission." Then you can also carry 100 pounds of rice on your back for a long time."

"It's so magical", and then stared at Li Guocheng in a daze, just when Li Guocheng thought she was resurrecting again, she said again: "You be my master, I also want to be such a powerful inventor as you", Zhou Xiaojuan said seriously.

Li Guocheng has long had the idea of training her as an assistant, "Forget about apprenticeship, let's make progress together."

"That's what you said, I'm serious," Zhou Xiaojuan said with great seriousness.

"I said it, don't worry", Li Guocheng reluctantly gave a guarantee.

"The old rule, complete these surveys and mapping, and then form drawings", Li Guocheng immediately arranged the work, there is no need for assistants, let alone when.

"You..." With a bitter face, Zhou Xiaojuan hugged a few parts, came to the workbench next to her, took out a new drawing, and started surveying and mapping.

Thank you all for your support! Ask for recommendations! Ask for a commuter pass!

(End of chapter)