Torsion spring structure

The utility model discloses a torsion spring structure which comprises a coil torsion spring body, two ends of the coil torsion spring body are respectively connected with a first torsion arm and a second torsion arm, and the first torsion arm and the second torsion arm are arranged oppositely. The torsion arm is characterized in that the end part of the first torsion arm is connected with a triangulation lock structure; the triangular lock structure comprises a first torsion arm corner part, one end of the first torsion arm corner part is connected with a first torsion arm, the other end of the first torsion arm corner part is connected with a first extension part, the first extension part is connected with a second extension part through a second torsion arm corner part, and a hasp part is arranged at the end of the second extension part and movably connected with the first torsion arm. The second torsion arm is provided with triangular lock structures which are the same as the first torsion arm in structur