This invention discloses a large
compression ratio hexagonal prism elastic telescopic mechanism with a stable structure, comprising two end three-ring telescopic mechanisms and several series-connected
hexagonal prism three-ring retraction mechanisms. The two ends of the series-connected
hexagonal prism three-ring telescopic mechanisms are connected to the end three-ring telescopic mechanisms. Each end three-ring telescopic mechanism includes a central disc, a type I connecting rod, a wing-shaped joint, a type II connecting rod, a spring, a Y-shaped joint, and a tension spring. The end three-ring telescopic mechanisms are located at both ends of the series-connected hexagonal
prism three-ring telescopic mechanisms, while the hexagonal
prism telescopic mechanisms are located in the middle section. The number of end three-ring retraction mechanisms can be configured according to requirements. The end three-ring retraction mechanisms share the spring, Y-shaped joint, and tension spring with the hexagonal
prism three-ring telescopic mechanisms. This invention features a simple structure, a large
expansion ratio,
structural stability, and freely designable telescopic stiffness. It can be applied to various fields with compact installation spaces and requirements for large
stroke and
variable stiffness buffering.