EN
Torsion springs are a branch of helical springs that transmit torque through torsion arms and store elastic potential energy via coil bending deformation. The main classifications are as follows:
The most basic and universal structure, consisting of a single set of helical coils and two torsion arms. They feature a simple structure and low manufacturing cost, and are suitable for scenarios with conventional torque and small-angle torsion, such as ordinary clips, small hinges and flip mechanisms.
Composed of two sets of helical coils, divided into same-direction double torsion and reverse double torsion types. Reverse double torsion springs can offset lateral forces, provide symmetrical stress and stable operation, and output greater torque. They are often used in scenarios with high requirements for torque balance, such as seat adjustment, large industrial fixtures and heavy-duty hinges.
o Straight arm type: The torsion arms are linear, with the lowest processing difficulty, suitable for slot and push-fit assembly.
o Bent type: The arm ends have standard 90°/180° bends, with accurate positioning and convenient installation, making them the most widely used type.
o Hook type: The arm ends are made into hook structures, suitable for hanging installation, and can meet both torsion and slight tension requirements.
o Special-shaped arm type: Custom bending angles and shapes are designed according to installation space, specially adapted to narrow installation positions of non-standard equipment.
Include customized types such as variable-diameter torsion springs (gradual coil diameter, suitable for conical spaces with smoother torque output) and multi-layer nested torsion springs (to increase torque in limited axial space).