1. Measurement function
We know that within the elastic limit, the elongation (or contraction) of the spring is proportional to the external force. Springs are made using the properties of springs.
2. Squeeze function
Observing various electrical switches will find that one of the two contacts of the switch must be equipped with a spring to ensure that the two outgoing ends are in close contact and that the conduction is good. If the contact is poor, the resistance at the contact becomes large, and the heat generated when the current passes increases, and in the case of severe, the metal at the contact melts. The two metal posts of the bayonet cap are also equipped with springs for good contact; as for the central metal piece of the screw cap and the plug metal pieces of all the sockets are reeds, the function is to make the two sides close contact to maintain Same as good. When the tape is in place, there is a phosphor bronze reed that uses the elastic force generated by the bending deformation to bring the head into close contact with the tape. There is a long spiral spring in the stapler. Its function is to tighten the staples on the one hand, and to push the rear nails to the front for the comfort of the nails when the front nails are pushed out. In this way, one nail can be automatically pushed to the front until the nail is fully pushed out. Many machines are automatically fed, and the bullets in the automatic rifle are automatically attached to the spring. In addition, clips like clothes, ballpoint pens, and clips on the pen holder are clamped to the clothes by the pressing function of the spring.
3. Reset function
The spring deforms under the action of an external force, and the spring can be restored after the external force is removed. Many tools and equipment are reset using the nature of a spring. For example, the hinges of many building gates are equipped with a return spring. When people enter and exit, the door will automatically reset. People also use this function to make automatic umbrellas, automatic pencils and other supplies, which is very convenient. In addition, a variety of buttons and buttons are also indispensable for the return spring.
4. Drive function
Mechanical clocks and clockwork toys are driven by tight springs. When the spring is tightened, the spring is deformed to store a certain elastic potential energy. After release, the elastic potential energy is converted into kinetic energy, which is rotated by the transmission device. The toy gun and the starting gun and the military also work on one of the properties of the spring.
5. Buffer function
A spring is placed between the frame of the locomotive and the wheel, and the elasticity of the spring is used to slow down the bump of the vehicle.
6. Vibration sound function
When the air flows from the harmonica in the harmonica in the accordion, the spring is struck and the reed vibrates to make a sound.
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Tag: Hardware knowledge: six functions of spring
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