"People are like stepping on a balance, and they are also tied to the front
and rear wheels, turning like flying, and people can walk without time. Not only
one sees it, but there are many people who meet."
This passage is recorded in the "Shenjiang Scenic Spots" published by China
in 1884, and the scene of bicycle riding began to appear in China. At that time,
the number of bicycles was very small and very few. Chinese bicycles were also
imported from the United Kingdom. It was not until the establishment of the
Shanghai Bicycle Factory (the predecessor of Shanghai Forever Co., Ltd.) in 1940
that China had its own bicycle production brand, and bicycles began to slowly.
universal. Then the inflatable tube that came into being and closely related to
the bicycle is of course, which is a very common air pump that was later
developed.

Air pump is "air pump", a device that removes air from an enclosed space or
adds air from an enclosed space. Air pumps are mainly divided into electric air
pumps, manual air pumps, and foot pumps. When I was young, everyone who had a
lot of bicycles at home would be equipped with an air pump. At that time,
electric air pumps were not popular, and basically manual and foot air pumps
were used. Their principle is to use hand force or foot force as the driving
force, continuously compressing air to generate air pressure, so as to achieve
the purpose of inflation.wall mounted home energy storage system
Bicycles have played a milestone role in the development of human
transportation tools, and the air pump at that time was also an important human
invention. With the improvement of productivity and the advancement of
technology, all kinds of cars can be seen everywhere on the road nowadays. But
no matter how the times progress, even if the two-wheeler develops from a
four-wheeler or even a multi-wheeler, the wheels still have to be inflated. Car
tires are larger than bicycle tires and require more pressure than bicycles, and
ordinary manual air pumps are time-consuming and labor-intensive. So there is an
electric air pump for inflating car tires. An air pump powered by electricity
uses electricity to continuously compress air to generate air pressure. Mainly
used in pneumatic glue making, car inflation, etc. There are many advantages of
the electric air pump of the car. 1. It is small in size, usually placed in the
trunk of the car, does not occupy a place, and is convenient to carry. 2. High
power, high efficiency, and inflation speed. 3. Wide use: can be used in cars,
motorcycles, Bicycles, swimming rings and balls, etc.; 4. Tire pressure can be
measured, so that car tires can maintain normal tire pressure at any time.
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