Butterfly valves were widely used long ago. It is an accumulator, which has the function of storing energy. The ancient bow and crossbow are two kinds of butterfly valves in a broad sense.
Now let's talk about the function of butterfly valve:
1 Buffer function
A butterfly valve is installed between the frame and the wheels. The elasticity of the butterfly valve is used to slow down the stability of the vehicle. So the butterfly valve on each motor vehicle is also very useful.
2. Vibration and sound generation function
When air moves from the spring holes in harmonicas and accordions, it impacts the reeds, and the reeds vibrate to make beautiful sounds.
3. Measuring function
How is the butterfly valve scale made? It means that within the elastic limit, the extension (or contraction) of the butterfly valve is proportional to the external force. The butterfly valve scale is made of this property.
4. Reset function
The butterfly valve deforms under the action of external force. After the external force is removed, the butterfly valve can return to its normal state. Many devices and tools use this property to reset. For example, reset butterfly valves are installed on the hinges of many building doors, and the doors will automatically comfort people after they enter and exit. People also use this function to make automatic pencils, automatic umbrellas and other items, which are very convenient.