Folk grandfathers invented all kinds of bicycles themselves, including labor-saving bicycles, mechanized bicycles for cultivated land, bicycle plows for cultivated land and so on. Grandpa Lu Qinghua independently invented the labor-saving bicycle and won the top national patent. Bicycle mainly uses two principles: lever and crankshaft, and the owner can easily realize the progress of the bicycle by stepping on the pedal up and down. According to the old man's test, this bicycle is a quarter faster than ordinary bicycles, and it is also easy and labor-saving.
A rural uncle in Jiaxian County, Henan Province invented a mechanized bicycle for farmland, which can remove weeds and turn vegetables in the field. It's easy. Wang Fuhe, from Beijing, also invented a self-made bicycle plow, which can be used to cultivate land and greatly improve production efficiency.
Folk inventors invented some escape devices, such as escape slides, high-rise escape devices and so on. Zhou Miaorong of Minhang, Shanghai, invented a new type of escape slide, which can help evacuees escape from the scene of the accident quickly. According to Zhou Miaorong's test, it takes only 3 seconds to 5 seconds for each floor to escape, which can accommodate many people to slide at the same time. When using the escape slide, just open the slide and the escapee can lie on the slide and slide to the bottom smoothly.
Wu, a native of Wenzhou, Zhejiang, invented a high-rise escape device. Generally, it is installed on buildings below 10 floor, and consists of slow descending device and rack track. When not in use, the bearing belt is placed outside the window or on the balcony frame. In case of fire, the stainless steel load-bearing belt can be pulled out as an escape rope, which can quickly escape, and the load-bearing belt can also withstand multiple people to escape at the same time.
The citizens of Suzhou, Jiangsu Province invented an automatic alarm fence and obtained the patent certificate of utility model issued by China National Intellectual Property Administration, which can not only prevent theft, but also help residents escape smoothly in case of fire. This design has stronger bearing capacity than ordinary security window, and can be used as a temporary shelter in case of fire. If it is installed on a low floor, you can jump over the fence directly.
Long Dun, a folk inventor, invented a typewriter, which can set three gears and adjust the typing speed, and can quickly solve the problem of computer typing. This typewriter not only frees hands, but also greatly improves the typing speed and saves a lot of time.
Folk inventors are hidden, changing their lives with their hands and wisdom, and even changing the lives of others in society. They are undoubtedly full of wisdom and innovation.