Chapter 468 Then you can only use your face brake

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Liu Hanshao's improved tricycle did not use a chain, after all, according to the current manufacturing level, it is also a Seiko product, I am afraid that it will be time-consuming and laborious, and it will be too difficult to manufacture, but Liu Hanshao told Pu Yuan this idea and asked him to study it slowly. Don't underestimate the imagination and creativity of the little babies, there is no inherent thinking constraints, but they know a certain amount of knowledge and technology, maybe they are really little geniuses.

Still using the connecting rod transmission method used by the apprentices, Liu Hanshao only added three gears. The first is the active gear added in the middle of the crankshaft, which is fixed at the bottom of the car, and there is a bridge gear in the middle to change the direction of rotation of the passive gear, and the last one is the passive gear on the straight shaft, however, the passive gear uses a flywheel structure, so that when the car slides downhill, the pedals will not keep turning in circles together.

"Brakes, there must be brakes! Otherwise, when you run off the road, you won't see anyone? What's the matter, are you female drivers so domineering? ”

Perhaps it evoked the painful memories of his previous life, Liu Hanshao was particularly angry when he said this, while Huang Yueying pouted aggrievedly and said "oh", in order to express his dissatisfaction with his powerless refutation.

Because it was in the research institute, the labor and materials were ready-made, so Liu Hanshao and his apprentices improved the tricycle in the morning. On the key parts of the oil, do a good job of lubrication, Liu Hanshao was very proud Huang Yueying said: "Go up and try? ”

Sima Yi said first: "Master, let's let the apprentice test the car." After speaking, he didn't wait for Liu Hanshao to agree or Huang Yueying to object, he jumped directly onto the tricycle and stepped on it.

Oops, is this trying to protect your sister, or is there no confidence in your master's improvements? Poor dignified, he was thrown into the mountain nest by himself, and he didn't let Sima Yi take advantage of it, right?

Everyone else was staring at Sima Yi and the new tricycle, only Liu Hanshao's head was full of crooked thoughts. The performance of the new tricycle has really improved a lot, I don't know how much more flexible and lighter than before, of course, it is also due to the fact that the current road conditions of the institute are good, and they are all slippery cement brick roads.

In the surprised eyes of everyone, I saw Sima Yi riding faster and faster, and after turning a big bend along the playground of the research institute, he rushed over to Liu Hanshao's side again, I don't know how much faster it was than when Huang Yueying rode just now.

Dian Wei said in his heart, you little bastards, do you want to smash your master, or do you want to slap me? What's the matter, if you don't fly me, you're not done, is it?

Just as Dian Wei was about to "turn the car around" again, Sima Yi stepped on the brakes, and then the tricycle stopped steadily in front of everyone.

"That's amazing!"

Huang Yueying jumped over and said in a loud voice: "Senior brother let me try, let me try." ”

Sima Yi didn't care about Liu Hanshao, so he turned around and sat in the back row, and said with concern: "Senior sister, when the car is running fast in a while, don't turn sharply!" ”

"Why?"

"Because it's going to roll over! When I turned the corner, I felt a wheel cocked behind me, and it almost scared me to death. ”

"Oh, got it, I'll be careful."

As soon as Huang Yueying turned around, she found that Pu Yuan had also jumped into the car, and said angrily, "Why are you all here?" Can I ride? ”

Pu Yuan said flatteringly: "Hehe, junior sister, senior brother is relatively thin and small, so he won't get in the way." ”

Sima Yi

I also confidently said, "No problem, absolutely no problem!" ”

Then Huang Yueying kicked hard, and after starting, she really took Sima Yi and Pu Yuan away.

A little girl who couldn't even ride a heavy car before, can now carry two little boys around, what a big improvement...... That's not right! You ignore the master so much, do you have to be angry first?

It wasn't until Huang Yueying also walked around the playground and returned to Liu Hanshao that she jumped out of the car and said in amazement and praise: "Master, you are so amazing!" This car has been changed by you! Even I can carry them! ”

Liu Hanshao, who was hit by the critical attack, pretended to be disdainful and arrogant in order to brush up on his sense of existence: "Do you think this car is good?" In fact, it is still missing a very important part. ”

Sure enough, the little monsters were aroused and gathered over and asked, "Master, what is it missing?" Say it! ”

I only heard Liu Hanshao say with great certainty: "Car bell!" ”

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Lunch is eaten in the institute, Liu Hanshao and the apprentices discussed the modification and use of the tricycle, if the back is installed seats, a person riding a bicycle can probably take two people to run, if the rear is installed is a body, a person can probably pull three or five stone grain, not only can people without large livestock can also pull heavy goods, and may even give birth to new industries...... Rickshaw driver!

Therefore, the tricycle market has broad prospects and is very profitable!

Staying with the little babies, staying with these iron lumps and pieces of wood, finally made Liu Hanshao completely relaxed, and no longer thought about the world's major events, the emperor's great cause, who killed whom, and who betrayed whom. If it really can, Brother would rather be a carpenter emperor, maybe a little more high-end than a carpenter, and be a technology emperor, how easy it should be.

So, Liu Hanshao boasted to his apprentices again, saying that riding a bicycle does not need three wheels, and two wheels are enough.

Then, the little babies couldn't even care about eating well, and urged Liu Hanshao again and again, and quickly taught everyone to make a two-wheeled car.

Bicycle?

We don't have a chain.

It's not impossible to say that it is impossible to make a chainless bicycle, but the current material is either iron or wood, which is too bulky, and I am afraid that if I make it, the bicycle will not save much trouble. Besides, the cow has already blown out, and if it doesn't come out on the hour, I'm afraid these little demons should ignore their own master again.

Suddenly, Liu Hanshao had a flash of inspiration, threw down his rice bowl, waved his big hand, and jumped out of the canteen of the institute first. Sima Yi, Pu Yuan, and Huang Yueying did the same, each pushed their rice bowls, and jumped out with Liu Hanshao. Dian Wei and Yang Xiu said that they had long been accustomed to Liu Hanshao's various unreliability, but the five-person follower group was completely confused.

What do you mean?

Liu Xie was proclaimed emperor and led the army from the south to fight back?

The group of five followers also ran out with the others, only to find that Liu Hanshao and his apprentices had already jumped to the wood research group. Liu Hanshao first asked people to find a bamboo pole more than one zhang long, then trimmed it into a bamboo strip three fingers wide, and then wrapped the three bamboo strips tightly together with iron sheets at both ends and in the middle.

At the same time, Liu Hanshao also ordered someone to make a seat similar to a saddle out of wood, but the left and right sides were much narrower, and the front and back ends were raised high, saying that it was like a moonlight tooth, or the one that raised his hands and surrendered.

After that, Liu Hanshao asked people to find a belt, buckle it at both ends of the bamboo strip, and put it on the live buckle of the iron sheet, slowly bend the bamboo strip, tighten the belt, and finally put it again

The belt is fastened to the seat's snap.

What is this?

Longbow?

How long is a bow?

Liu Hanshao checked the bamboo strip, even if it was bent, he did not complain at all, and he did not want to break it. Then he used a belt to connect the looper on the iron sheet in the middle of the bamboo strip with the seat, and let Dian Wei stand on a high place and shake it up and down with the bamboo strip. The bamboo strips trembled like a flat pole, and the seats followed up and down, but the bamboo strips still did not mean to break.

Seeing this, Liu Hanshao shouted very arrogantly: "Bring the wheel!" ”

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In his previous life and later life, Liu Hanshao saw the "gravity-free bicycle" on the Internet, which was invented by a little baby with a knee injury in order to run again. The spring arch can bear most of the weight of the human body, and the riding process is actually constantly alternating the legs, but it can enable the rider to achieve "gravity-free running", and experience the feeling of flying!

But now it is not easy to manufacture springs, and the quality cannot be guaranteed, so Liu Hanshao used bamboo strips to make arches, using the toughness of bamboo instead of the elasticity of springs. Don't underestimate bamboo, it's not a problem to carry two buckets of water with a bamboo flat pole, right? The flat shoulder is placed on the bucket, and the person sits on it, and it can't be folded, right? The point is that it's readily available, cheap, and eco-friendly.

After the two-wheeled vehicle was installed, Liu Hanshao needed a "test rider", and everyone was both eager to move and discouraged. Just two of them can run, and it can't turn over?

In the end, Sima Yi volunteered and stood in the middle of the two-wheeled vehicle, but he stood and didn't know what to do next.

Liu Hanshao said, "Sit down." ”

Sima Yi slowly sat on the seat, feeling that the seat seemed to sink a little, and he was so frightened that he almost jumped up again.

Liu Hanshao hurriedly said, "It's okay, it's okay." The arch can't be broken. You walk slowly forward. ”

Moving forward?

Sima Yi also wanted to come, but forgot which leg he should take first.

One step at a time, one step at a time, one step at a time, like a minion, is the devil's pace.

At first, Liu Hanshao also walked with Sima Yi, and instructed as he walked: "Relax, relax your body." Why are you so nervous when you sit in your seat and you don't fall off? Put your stomach on the front guard and it will give you a point of support. Run, run slowly! ”

When Sima Yi got used to this "way of walking" and slowly jumped away, Liu Hanshaoke couldn't keep up anymore, and Huang Yueying also jumped and jumped to cheer for Sima Yi. Everyone was surprised to find that Sima Yi could jump out several feet away in one step, not only that, but the speed was not much faster than riding a tricycle before, and it was not an exaggeration to say that he was "faster than a galloping horse".

Pu Yuan asked excitedly, "Master, what should this car be called?" ”

Liu Hanshao said very angrily: "This is an authentic bicycle!" ”

Huang Yueying suddenly said "oops" and said anxiously: "Master, master, we forgot to put brakes on this car!" How can I stop after a while? ”

It's not that I forgot to install it, but if you want to install brakes on this rear wheel, you have to use steel wire transmission, and we don't have that thing now. However, Liu Hanshao couldn't expose his shortcomings in front of his apprentices, so he pretended to be calm and said: "Bicycles, in fact, the main thing is to rely on the foot brake." ”

Huang Yueying looked at the heel of her shoe suspiciously, and asked suspiciously, "What if...... Can't stop with your feet? ”

"Then you can only use the face brake!"