Springs have been widely used for a long time. It is an accumulator that has the function of storing energy. The ancient bow and crossbow were two types of springs in a broad sense.

Now let's talk about the functions of springs:

1 Buffer function

There are springs installed between the frame and wheels, which use the elasticity of the springs to slow down the bumps of the vehicle. So the springs on each motor vehicle are also quite useful.

2. Vibration sound generation function

When air flows through the spring holes in harmonicas and accordions, it impacts the reed and the reed vibrates to produce a beautiful sound.

3. Measurement function

How is a spring scale made? It means that within the elastic limit, the elongation (or contraction) of the spring is proportional to the external force. Spring scales are made using this property.

4. Reset function

The spring undergoes deformation under the action of external force, and after removing the external force, the spring can return to its normal state. Many devices and tools utilize this property to reset. For example, many building doors have reset springs installed on their hinges, and when people enter and exit, the doors will automatically comfort them. People also use this function to make items such as automatic pencils and umbrellas, which are very convenient.