Tension spring damping mechanism

The invention relates to a tension spring damping mechanism, and belongs to the technical field of inspection robots. Comprising an upper swing arm unit and a lower swing arm unit, the upper swing arm unit and the lower swing arm unit are symmetrically arranged up and down, and the bottom of the upper swing arm unit is connected with the top of the lower swing arm unit through a middle pin assembly; a mounting base is arranged on the upper swing arm unit, and a hub motor is arranged on the lower swing arm unit; the upper swing arm unit comprises two upper swing arms which are symmetrically arranged left and right, the top ends of the upper swing arms are meshed, and an upper tension spring is arranged between the bottoms of the two upper swing arms; the lower swing arm unit comprises two lower swing arms which are symmetrically arranged left and right, a lower tension spring is arranged between the tops of the two lower swing arms, the upper tension spring and the lower tension spring are arranged in parallel