1. Measurement Function
It is well known that within the elastic limit, the extension or compression of a spring is directly proportional to the applied force. This principle is widely used in the design and manufacturing of springs for various applications.
2. Squeeze Function
Many electrical switches incorporate springs to ensure that the contacts remain in good contact, allowing smooth current flow. If the contact becomes poor, resistance increases, leading to heat generation, which can even cause melting of the metal at the contact point. For example, bayonet caps have springs to maintain proper contact, while screw cap centers and socket contacts use reeds to ensure tight connections. In tape recorders, a phosphor bronze reed uses elastic force to press the head against the tape. Staplers also contain long spiral springs that help secure staples and push nails forward automatically. Similarly, automatic rifles use springs to feed bullets. Clips on pens and clothes are also designed to hold items firmly using the spring's pressing function.
3. Reset Function
When an external force is applied, a spring deforms, but it returns to its original shape once the force is removed. This property is used in many tools and devices for resetting. For instance, return springs are installed in building gates so that doors automatically close after being opened. Automatic umbrellas and pencils also rely on this feature, making them more convenient to use. Buttons and switches often include return springs to ensure they pop back into place after being pressed.
4. Drive Function
Mechanical clocks and wind-up toys operate using tightly wound springs. When the spring is wound, it stores elastic potential energy, which is then released as kinetic energy through a gear system to power the mechanism. Similar principles apply to toy guns, starting guns, and even military equipment, where springs are used to generate motion or trigger actions.
5. Buffer Function
Springs are used in locomotives to absorb shocks between the frame and the wheels. Their elastic properties help reduce the impact of uneven tracks, providing a smoother ride for passengers and protecting the vehicle from damage.
6. Vibration and Sound Function
In musical instruments like accordions, air passing through the reeds causes them to vibrate, producing sound. The reeds themselves are often made with spring-like properties, enabling them to oscillate and create musical notes.
Stay tuned for more interesting facts!
Tag: Hardware knowledge, Spring
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