High-compression-ratio elastic return device, sliding telescoping leg rod module and assistive device
By combining a high compression ratio elastic recovery device and a two-stage sliding mechanism, the problems of large size, heavy weight and insufficient sliding distance of existing power-assist devices are solved, achieving a lightweight and stable walking assistance effect, meeting the needs of human movement, reducing costs and improving reliability.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SHENZHEN CONCHIN TECH CO LTD
- Filing Date
- 2024-12-23
- Publication Date
- 2026-06-18
AI Technical Summary
Existing hip joint assistive exoskeleton devices are large, heavy, and costly. Furthermore, the sliding mechanism of existing lightweight assistive devices has a short sliding distance, which cannot meet the large sliding distance requirements of the leg pole when walking, climbing stairs, or running. The space for the elastic recovery structure is also insufficient.
It adopts a high compression ratio elastic recovery device, combined with a two-stage sliding mechanism and a small-sized spring to provide elastic recovery force for large displacement. The high compression ratio elastic recovery is achieved through a gear and reel structure. In the sliding telescopic leg module, the first-stage sliding mechanism slides first, and the second stage maintains a fixed position under the action of the elastic recovery device. The power module is located on the lower abdomen of the front of the human body, and the waist belt is made of flexible material.
This invention achieves a lightweight and stable walking assistance device that is small in size, light in weight, and low in cost. The sliding distance meets the needs of human movement, and the power module is compact and fits the body without affecting daily activities, thus improving the reliability and user experience of the device.
Smart Images

Figure CN2024141283_18062026_PF_FP_ABST