Portable walking assistant mechanism functioning on knee joint

Abstract

The invention discloses a portable walking assistant mechanism functioning on knee joint. The mechanism comprises an output device, an assistant torque actuator and a drive force transmission component. The assistant torque actuator functions on the assistant torque actuating components of both the left and right knee joints respectively. The mechanism applies the human body weight as the drive force without the requirement of additional external power and energy inputs. The mechanism is based on the leverage principle and the structural principle of the crank-slider, applies the working manner of the left and right foot alternating input, uses the human body weight and uses the brake cable as the medium of drive force transmission. The left foot power output component provides drive force to the assistant torque actuating components of the right leg knee joint. The right foot power output component provides drive force to the assistant torque actuating components of the left leg knee joint. The torques are generated for assisting the bending and extending of both the left and right knee joints during the walking process to achieve the purpose of assisting the walking.

Description

technical field [0001] The invention belongs to the field of knee joint auxiliary equipment and walking auxiliary equipment, in particular to a portable auxiliary walking mechanism acting on the knee joint. Background technique [0002] With the rapid development of social economy, the aggravation of the aging degree worldwide and the continuous high incidence of stroke and brain diseases, more and more elderly people and patients with stroke and other brain diseases with partially disabled lower limb motor ability need to live independently. Instead of being taken care of all day long in the limited space of hospitals or nursing homes, they urgently need a portable booster mechanism or device with simple structure and practical functions to help them walk freely indoors and outdoors, and improve their self-care ability and health status. With the goal of improving and improving the walking ability of the elderly with reduced exercise capacity and stroke and other brain dise...

AI Technical Summary

Problems solved by technology

Although this kind of walking assistance products can help the elderly or patients with partially disabled lower limbs maintain their balance or move, but because they have no power, they need to rely on the strength of their upper limbs, which will make people feel strenuous in walking.

In addition, exoskeleton robots are also a hot spot in the research of walking assistance, but their volume and weight are large, the inertia of the rigid mechanism is large, and the comfort is poor. At present, they have not been practically applied to the daily walking of the elderly or patients with partial disabilities of the lower limbs.

Images