An ankle-assisted exoskeleton based on the clutch and spring is studied. The exoskeleton is passively designed to store and release energy through the opening and closing of the clutch at different stages of walking in series with the spring

thus realizing the purpose of walking assistance and reducing metabolic consumption. Firstly

the structural design of the ankle-assisted exoskeleton was based on the 3D modeling software SolidWorks; and the rationality of the mechanism was studied based on the Adam virtual prototype simulation

and the metabolic energy changes of the human body after wearing the ankle-assisted exoskeleton via OpenSim were studied. The experimental results proved that the electromyographic signal of the lower limb muscles decreased when the experimenter wore the ankle-assisted exoskeleton and the ankle joint had a better walking effect.