A chain link, chain structure and three-dimensional flexible actuator for a flexible actuator

Abstract

The invention relates to a chain link for a flexible actuator, a chain structure and a three-dimensional flexible actuator. The chain link includes a connected head and a tail, the head includes an end and a neck, the end is a ball head, the neck is connected to the end, and the diameter of the neck is The diameter of the ball head is smaller than the diameter of the ball head; the tail is provided with a ball head long hole, the inner surface of the bottom of the long hole is spherical, the orifice of the ball head long hole shrinks, and the diameter of the orifice is smaller than the The diameter of the ball; the size of the long hole of the ball head at the tail part is suitable for accommodating a ball head of the same size as the end of the head, and the ball head accommodated can move and rotate in the long hole; The end face of the chain link is provided with through holes, and at least three through holes are provided, and the through holes are arranged at intervals along the circumferential direction. The invention can provide a flexible actuator structure that can be rotated and bent in three-dimensional space, and can meet the technical requirements in the field of rehabilitation and the like.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a chain link for a flexible actuator, a chain structure and a three-dimensional flexible actuator. Background technique [0002] The rehabilitation treatment of the spine is to restore the stability and flexibility of the spine, prevent muscle atrophy, chronic pain and eliminate the adverse effects of long-term bed rest on the body. The combination of early rehabilitation and treatment can prevent complications and promote the maximum recovery of residual function. On the basis of maintaining residual function, retrain the command and control functions of the nervous system, and retrain the original functions of the residual muscles to replace them. To compensate for the lost part of the function; according to the anatomical and physiological basis and the level of injury and the degree of injury, carry out gradual and systematic rehabilitation training, and strive to ach...

AI Technical Summary

Problems solved by technology

[0003] At present, there are few auxiliary rehabilitation systems that can be used for spinal rehabilitation in the market, and the dynamic structure of the existing rehabilitation institutions is complicated, and the structure itself is relatively heavy, and the structure itself generally uses an actuator with only a few degrees of freedom, which cannot meet the needs of the human spine. The requirement that the three-dimensional space can be rotated and bent has more restrictions on the human body

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