Observing various electrical switches, it can be found that one of the two contacts of the switch must be equipped with a spring to ensure that the two contacts are in close contact and have good conduction. If the contact is not good, the resistance at the contact will increase,Continue Reading

① Control mechanical movement, such as valve spring in internal combustion engine, control spring in clutch, etc. ② Absorb vibration and impact energy, such as buffer spring under car and train carriage, vibration absorption spring in coupling, etc. ③ Store and output energy as power, such as clocks, springs inContinue Reading

1. Torsion spring is a kind of spring which bears torsion deformation. Its working part is also tightly wound into a spiral shape. The end structure of torsion spring is processed into various shapes of torsion arm, not hook ring. Using the lever principle, torsion spring has great mechanical energyContinue Reading