Rotating cushioning and assisting mechanism and an exoskeleton ankle joint cushioning and assisting device

A rotating cushioning and assisting mechanism, comprising:

• a rotating outward expanding member comprising a first rotating member and a second rotating member, which enclose to form an expandable compartment, one end of the first rotating member and the second rotating member are pivot ends, and the other ends of the first rotating member and the second rotating member are free ends;
• an elastic return member connected to the free ends of the first rotating member and the second rotating member;
• and
• an inner support heterogeneous member rotationally disposed in the expandable compartment, and
• an outward expanding force is applied on the first rotating member and the second rotating member on both sides of the expandable compartment along with the rotation of the inner support heterogeneous member, to stretch the elastic return member;
• a pitch-adjustable member, one end of the elastic return member is connected to the first rotating member through the pitch-adjustable member, and the other end is connected to the second rotating member;
• and the pitch-adjustable member comprises:
• a chute provided at the free end of the first rotating member;
• a limit permanent seat disposed in the chute and limited in the sliding direction of the chute, and provided with a perforation;
• a pitch-adjusting slider disposed in the chute and provided with a threaded hole facing the perforation, and the elastic return member being connected to the pitch-adjusting slider;
• and a pitch-adjusting threaded member,
• one end of which threaded through the perforation and screwed into the threaded hole, and the other end having a stop portion that stops at the limit permanent seat.