Upper limb negative pressure power assisting system

Abstract

The invention relates to an upper limb negative pressure power assisting system. The upper limb negative pressure power assisting system comprises a back frame and arm rods provided with arm pads, andnegative pressure tension devices are arranged on the two sides of the back frame respectively; each negative pressure tension device comprises a shoulder angle plate, a compression spring, a supporting rod, a cylindrical barrel with an opening in the top, a piston located in the cylindrical barrel and a piston rod fixedly connected with the piston, the cylindrical barrels are fixedly connected with the supporting rods correspondingly, the shoulder angle plates are fixedly connected with the arm rods correspondingly, the joints of the shoulder angle plates and the arm rods are connected withthe tops of the supporting rods through a spherical hinge structure, and the bottoms of the supporting rods are connected with the back frame through the spherical hinge structure; a sliding groove isformed in each shoulder angle plate, the piston rods extend upwards from the pistons and extend out of the top openings of the cylindrical barrels correspondingly, pin columns capable of moving alongthe sliding grooves are arranged at the tops of the piston rods correspondingly, and a rodless cavity of each cylindrical barrel is sealed and is provided with a one-way valve. The system can reducedamage to human muscles and bones caused by long-time lifting of heavy objects or repeated actions, and the working efficiency is improved.

Description

technical field [0001] The invention relates to an upper limb assisting system, in particular to an upper limb assisting system utilizing negative pressure. Background technique [0002] In many fields such as industry and agriculture, the vast majority of workers or farmers often need to deal with a large number of assembly lines or large-scale crops for a long time. Long-term repetitive movements and long-term arm elevation will cause certain injuries to workers and farmers. , in this context, in order to provide support to the arm to avoid the pain of exoskeleton equipment caused by such work, and to enhance the effect of amplifying the output of the human body, research on upper extremity exoskeleton assisting devices has gradually emerged and has become more and more extensive. application prospects. [0003] The traditional upper extremity exoskeleton assisting device uses a series mechanism with the same structure as the human upper extremity movement, causing the we...

AI Technical Summary

Problems solved by technology

[0003] The traditional upper extremity exoskeleton assisting device uses a series mechanism with the same structure as the human upper extremity movement, causing the weight of the elbow actuator to become part of the exoskeleton's load, which reduces the load capacity of the exoskeleton assisting device; in addition, the existing exoskeleton The skeletal power-assisted device realizes various movements of the human upper limbs by coupling with human shoulders, upper arms, elbows, forearms, and hands, including extension, flexion, abduction, adduction, and rotation. Due to the stiffness of each component Poor, may lead to safety problems that cause personal injury

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