Variable stiffness structure and lower limb load-bearing exoskeleton

A variable stiffness and exoskeleton technology, applied in the direction of program-controlled manipulators, manufacturing tools, manipulators, etc., can solve problems such as the inability to assist the human body in weight-bearing movements, and achieve the effect of reducing interference between man and machine, improving user experience, and low density

Active Publication Date: 2021-07-30
HUAZHONG UNIV OF SCI & TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most passive exoskeletons can only assist the human body to do work and cannot assist the human body in weight-bearing movements, and most of the exoskeletons that can assist the human body in weight-bearing movements are quasi-passive exoskeletons that require an additional power source to control the work of the core components

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Variable stiffness structure and lower limb load-bearing exoskeleton
  • Variable stiffness structure and lower limb load-bearing exoskeleton
  • Variable stiffness structure and lower limb load-bearing exoskeleton

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0026] see figure 1 , the present invention provides a variable stiffness structure 100 , the structure includes a capsule 110 , an STG material 120 , a cross bar 130 , a base 140 and a spring 150 .

[0027] The material of the capsule body 110 is TPU elastic soft rubber, which is a hollow structure filled with STG material 120 .

[0028] The cross bar 130 includes a vertical bar 131 and a cro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the related technical field of load-bearing devices, and discloses a variable stiffness structure and a lower limb load-bearing exoskeleton. The structure comprises a capsule, a cross-shaped rod, a base and a spring. The capsule is filled with an STG material. A vertical rod of the cross-shaped rod penetrates through the capsule , and a transverse rod of the cross-shaped rod is in contact with the surface of the capsule so as to compress the capsule. The capsule is arranged on the base. The spring is located in the STG material and arranged on the outer portion of the vertical rod in a sleeving manner, a limiting block is arranged on the vertical rod, one end of the spring is limited to the lower portion of the limiting block, and the other end of the spring is connected with the base. The elastomer STG material with the shear thickening function is adopted as filler, the stiffness rapidly becomes large during force bearing, and the structure is very suitable for reducing impact force borne by lower limbs when a human body walks with loads.

Description

technical field [0001] The invention belongs to the related technical field of load-bearing devices, and more specifically relates to a structure with variable stiffness and a load-bearing exoskeleton for lower limbs. Background technique [0002] Weight-bearing walking is a very common activity in human life, such as soldiers' field marches, personnel search and rescue, geological surveys, etc. In the above-mentioned activities, the human body often has to carry dozens of kilograms of material to carry out various operations, and the coordinated movement of the musculoskeletal system needs to consume a large amount of metabolic energy of the human body, and at the same time, it brings huge compressive stress to the human body joints. High-intensity load-bearing work, on the one hand, greatly reduces the continuous mobility of the human body, and on the other hand, it is easy to induce inflammation and pathological changes in the musculoskeletal system. How to use exoskelet...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B25J9/00
CPCB25J9/0006
Inventor 陈文斌范华清车精明付豪熊蔡华
Owner HUAZHONG UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap