In the Tuasian community, there is such a 70-year-old man. When he was young, he joined the army as a soldier. After he changed jobs, he worked as a bus driver. However, he loved to study mechanical inventions and created him. After more than 20 years of painstaking research, he invented. An inflatable-free explosion-proof tire, after three updates, was improved this month. In the elderly, the reporter saw the patent he applied for, and he also saw the tires that he said, "even if you have experienced numerous nailings and stabs, you can still drive normally."
Seventy-year old man develops car tires
Has applied for national patents many times
The old man is named Li Yajun. Yesterday morning, the reporter saw the grassroots inventor at the Tuas Court in Nanchang Shengli Road and listened to him about his invention.
In Li Yajun's home, he showed reporters the drawings he designed and the three generations of tire samples invented. “Although this tire has the same appearance as a traditional tire, its internal design is fundamentally different.†Li Yajun told reporters that the existing pneumatic tires have certain hidden dangers. If the tire encounters a foreign body leak during driving, It is easy to cause serious traffic accidents. In addition, when the tire pressure is too low, the fuel consumption of driving increases, which will waste energy; when the tire pressure is too high, the high-speed driving is prone to puncture, and the arc-clamp hollow tire designed by him is simple in structure due to the steel ring and The outer rubber is connected by a spring. The spring force of the spring is used to support the pressure of the tire. Therefore, even if the tire is punctured, it will not affect its normal use, the safety performance is greatly improved, and it is not necessary to inflate, and the use is very convenient.
Later, Li Yajun took out tools such as nails and hoes, and then sharpened the nails to the tires to demonstrate to the reporter, and then pulled them out. The reporter saw that the tires were not loose. According to Li Yajun, the three generations of tires he developed have applied for national patents many times. The third-generation tire can be used normally even if it is pierced by a knife, a gun or a nail. It is extremely convenient to repair and has high recycling efficiency. It can be widely used in military vehicles, cars and other types of vehicles and various road conditions. .
Love machinery love invention
Lack of funds
Li Yajun is just seventy years old this year, but his spirit is awkward and his speech is still full of anger. Talking about why I originally thought of designing tires, Li Yajun said that it all stems from his own experiences and hobbies. After graduating from high school, Li Yajun chose to join the army. He has used various military vehicles in the army. After retiring from the army, he has studied mechanical design knowledge and won relevant awards. This has become an important foundation for the later development of design tires.
Before retiring, Li Yajun has been a driver in the passenger transport company. Although he loves machinery, he has a dream of design and development. However, due to the pressure of life, he has not been able to set his mind to study. After dealing with cars for more than 40 years, he has developed a good habit of careful observation.
"Before running long distances, car tires will always encounter unexpected events such as a puncture in the middle or a puncture in the nail, so I thought, can I invent a tire that will not be puncture, will not puncture, and does not need to be inflated. Li Yajun said that from the time he was a soldier, he loved to ponder some small inventions, and after he retired, he began to put his ideas into practice. "At that time, the material conditions were still scarce. In order to invent the tires, I spent the whole day eating a pack of instant noodles in the most bitter time." Li Yajun said.
It is understood that the airless tires invented by Li Yajun obtained the national patent certificate in May 2006 and are called double-body arc core clamp type tires. This invention has not only been praised and recognized by experts at home and abroad, but more importantly, this award has also given Li Yajun the motivation to continue invention and creation.
Looking forward to cooperation to make pneumatic tires into production
Li Yajun told reporters that on the road he invented, there have been many things that made him unforgettable and indignant. "Remember once, I was in urgent need of money to invent the tires, but at that time no one was willing to subsidize me. For this reason, I also went to Shanghai in particular, where I worked as a driver and earned enough money to come back and continue research and development." Li Yajun said.
"My biggest wish now is to have units or individuals interested in my invention, so that these inventions can be produced in batches as soon as possible to serve the society, and at the same time support me to continue to invent." Li Yajun said.
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