A spring is a mechanical part that USES elasticity to work. The parts made of elastic material are deformed under the action of external force, and restore to original condition after removing external force. Also known as a spring. It is usually made of spring steel. The type of spring is complex and diverse, according to the shape, there are mainly coil spring, coil spring, plate spring and so on. What is the difference between a compression spring, a tension spring, and a torsion spring? How can we tell them apart?

Pressure compression spring (spring) is under the pressure of the spiral spring, it is used in the data section for more rounded, useful also rectangle and multi-strand steel rolled a travelling, spring is usually pitch, such as the shape of the compression spring are: cylindrical, conical, convex and concave and a small amount of noncircular, compression spring between the ring and ring have corresponding clearance, when under external load spring contraction deformation, deformation energy storage. Products are widely used.

The tension spring can directly suspend heavy objects. Can also be suspended upside down by a sleeve, the upper end of the sleeve to support the weight. The tension spring is used to exercise the pectoral muscle, now the tension spring is generally dual-use, can also be used as a grip; Armband is used to exercise each muscle on the arm, exercise methods are many, the two instruments are different in nature. The pressure spring can directly support the heavy load; Also can support a core rod, by the core rod lower end suspension weight. If mattess, sofa, lighter is to use this kind of characteristic that presses spring. The torsion spring (torsional spring) USES the lever principle, according to the material soft, the toughness of the elastic material torsion or rotation, so that it has a very large mechanical energy. Is to bear the torsion deformation of the spring, its working part is also each ring or tightly around or separate around, such as the clip clip clothes, headgear with a small hairpin.