Dong Qinjun released the handbrake, closed his eyes, and sighed: "This time it's really almost a ray of light..."
The electric wheelchair rushed straight up and rushed out of the river embankment, drawing a beautiful silver parabola in the air, and fell into the river near the other bank, making a loud "plop" sound, followed by water splashing all over the sky.
Li Shuyu was startled. She ran over and saw Dong Qingjun splashing in the water. She hurriedly stretched out her hand to him: "What are you doing? Swimming in such a cold day. Swimming is fine, but I took off my down jacket." If soaked in water, it will sink."
Dong Qingjun waved his hand: "No need. I will climb up by myself. I am too heavy and will pull you down too. The water is quite cold."
Li Shuyu knew that the water in this small river was very shallow at this season, so she silently retracted her hand and watched Dong Qingjun climb up from the river with two hands and one foot like a cumbersome old turtle.
Seeing that Dong Qingjun was shaking from the cold, she took off her down and wanted to put it on him.
Dong Qingjun said hurriedly: "No, no, no, no need. I'm already wet anyway. I can't let you catch a cold."
Li Shuyu hurriedly called the nearest automobile factory and asked them to send a car.
After making the call, she asked Dong Qingjun, who was looking at the river in a daze: "What are you looking at?"
Dong Qingjun stretched out his hand tremblingly: "The electric wheelchair is scrapped. The mobile phone is also scrapped."
In fact, what he was thinking about was whether the way he fell into the water just now was handsome or not, or whether it was too embarrassing.
When Han Weijun heard that Dong Qingjun almost drowned, he was shocked and quickly asked someone to drive him back.
Dong Qingjun started to have a fever on the way back.
The person who sent him was scared and sent him directly to the emergency department of the hospital, and then called Qin Hongling.
People in the emergency department lamented: "This is the first time that someone was sent to the emergency department for different reasons less than 24 hours after being discharged..."
Dong Qingjun's fever reached 40 degrees, and he muttered in a daze: "Refresh the record, create another great achievement. Turn him upside down, who am I afraid of..."
Qin Hongling was so anxious that she cried: "Why are you talking nonsense? Will it burn your brain?"
"Don't worry, I haven't seen an adult suffer from a fever and burn his brain." The dean paused and added, "There are some people who burn to death."
Qin Hongling cried even harder when she heard this.
The dean hurriedly said: "I'm sorry, it's my professional habit to always treat the patient's condition as serious as possible to his family members. Dong Qingjun is so young and usually in good health, so there is nothing to be afraid of. The fever will subside after being hospitalized and given an intravenous drip."
The main reason is not to tell the patient's family members about the worst possible situation, so that the family members can be mentally prepared. If the worst situation really develops, the family members will not be able to bear it and take it out on the doctor.
Dong Qingjun was so burned that he couldn't open his eyes. He felt like someone was dragging him to the bed. He felt that the people around him were about to leave, so he muttered: "Don't leave. I still have something to say."
Cen Qin didn't know whether to laugh or cry: "You kid has never had such a fever since you were a child. How come you still have a fever at such an old age? You are so confused. Mom is still here. She hasn't left. Just say what you want to say."
Dong Qingjun opened his eyes and tried to identify it, and found that it was Cen Qin. Without any expression, he closed his eyes again, completely dizzy.
He went on sick leave and the fever lasted for three days before it subsided.
This time, he couldn't even think about being dishonest.
The medical equipment factory did not expect that this wheelchair could carry Dong Qingjun into the river, and they were scared to death.
As long as Dong Qingjun does not hold them accountable, who dares to hold Dong Qingjun responsible for breaking the wheelchair?
Li Wenjun said meaningfully to the factory director: "Look, I said it. Don't put it into the market easily before safety measures are taken. Fortunately this time, Dong Qingjun was agile and could swim, and he was able to swim quickly. Climb up. If this is an old man, his life may be in danger."
The medical device factory learned from the experience and decided not to give up until this speed-limiting measure was introduced.
The speed of an electric wheelchair depends on the motor speed and speed ratio, battery voltage and controller.
Reducing the motor speed and battery voltage will definitely not work.
After all, everyone's needs are different. If it can only be driven at low speed, some people will find it difficult to use.
Then we can only work on the controller.
After much deliberation, the people at the medical device factory decided to ask the opinion of the only customer who had used it - Dong Qingjun.
Moreover, Dong Qingjun is also the director of the electric vehicle factory.
In fact, electric cars are similar to electric wheelchairs. They have the same sitting posture, except that the electric car pulls a few people and has a steel shell outside.
An electric wheelchair only needs to be pulled by the operator.
Dong Qingjun is no longer angry now, he is bored to death.
When he saw the director of the medical device factory coming, he was extremely happy and hurriedly greeted him: "Sit, sit, sit."
Factory Director: "Oh, Director Dong. Our speed control is a bit annoying. It's too slow, and customers don't like it. It's too fast, and you can't add a casing like an electric car, and it's inconvenient to move around in a wheelchair. It's really not convenient." Safety."
Dong Qingjun: "Can't you just set a gear? It's just like a car."
Factory Director: "Eh? This is good."
Dong Qingjun: "It's done, let me try it."
Factory Director: "You still have to try."
Dong Qingjun: "Try. I'm scared. It just so happens that my feet will take a while to heal. It's too strenuous to push the wheelchair by hand."
The factory director thought for a while: "That's okay."
Anyway, after Dong Qingjun fell into the river, no one else dared to try.
Considering that Dong Qingjun's sensitivity to technology is indeed unparalleled and he has more professional knowledge than ordinary customers, it would be most appropriate for him to give it a try.
The factory director went back and made a five-speed gearbox for the electric wheelchair. Each time a gear is increased, the speed increases by four kilometers per hour, with a maximum speed of 20 kilometers per hour.
They tried it in the factory and found it to be effective, so they drove it to Dong Qingjun to try it.
Dong Qingjun was extremely happy: after so many days, he could finally go out and run wild.
The factory director said: "Xiao Dong, let me push you to the playground of the university. There are no obstacles or pits there. It is wide and flat. There are no naughty children to make trouble."
Dong Qingjun: "You don't need to push me, I'll go by myself."
Factory Director: "No. I want to see you arrive at the university safely. Otherwise, don't try. Otherwise, I can't be held responsible for any accidents."
Dong Qingjun: "Okay, okay. Why are everyone acting like a mother-in-law now?"
The director of the factory took Dong Qingjun to the university in a car and dropped him off, giving him many long-winded instructions.
After what was called, he came to take Dong Qingjun back in person.
You must be careful and you can only accelerate slowly.
Dong Qingjun obediently agreed to everything.
Only the factory director dared to leave.
Dong Qingjun raised his head, took a deep breath, and said, "I am free."
All the college students were in class at the moment, and there was no one on the playground.
The blue sky, white clouds, and grassland seem to be in a free country in a dream.
