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Assistant leg based on multi-stage spring lock mechanism

A technology of spring lock and power-assisted legs, which is applied in the direction of manipulators, program-controlled manipulators, and appliances that help people walk. It can solve the problems of high elasticity and toughness, and the elasticity is not suitable for normal walking, so as to reduce the torque of the knee joint and reduce the consumption. the effect of physical strength

Active Publication Date: 2016-09-21
JIANGNAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, energy storage is used intensively in the field of sports for the disabled. Prosthetic limbs with high energy storage, due to their high elasticity and toughness, have extremely strong elasticity at each step and are not suitable for normal walking.

Method used

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  • Assistant leg based on multi-stage spring lock mechanism

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Embodiment Construction

[0019] combine figure 1 As shown, this patent includes a calf support structure, a spring energy storage device, and a foot fixing device; the calf support structure includes a calf connecting plate 8, a calf fixing plate 6, and a calf strap 9; one end of the calf fixing plate 6 is connected to On the calf connection plate 8, one end is connected on the calf strap 9; the calf connection plate 8 is linked to the support frame 20 through the connecting lever 7; the support frame is fixed on the foot bottom plate 17; A spring energy storage device is also provided.

[0020] Described spring energy storage device comprises elastic tension spring 21, fiber rope 23, sprocket wheel 25, chain 24, steel wire rope 11; 24; the chain 24 is set on the sprocket 25, and its fiber rope 23 is fixed on the support frame 20 around the movable pulley 22, and the lower end of the movable pulley 22 is connected with a steel wire rope 11, and the steel wire rope is connected to the fixed piece thro...

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Abstract

The invention discloses an assistant leg based on a multi-stage spring lock mechanism, and belongs to the field of medical auxiliary sports apparatuses. The assistant leg comprises a calf supporting structure, a spring energy-storage device, a foot fixing device and a knee joint supporting structure, wherein the calf supporting structure comprises a calf connecting plate and a calf fixing plate; one end of a tension spring on the spring energy-storage device is fixed to a support frame and the other end of the tension spring is linked to a chain; a fiber rope is connected to the other end of the chain; meanwhile, a steel wire rope is connected to the lower end of a movable pulley, and the steel wire rope is connected to a fixed piece; a disc brake group is arranged on one side of a chain wheel; a disc brake cable is arranged on the disc brake group, and the disc brake cable is connected to a disc brake switch; a foot base plate of the foot fixing device is connected to a pedal; one end of a pneumatic rod on the knee joint supporting device is fixedly arranged on the support frame; and the other end of the pneumatic rod is connected to a thigh fixing plate. The device (the assistant leg) is simple and convenient to wear and is capable of assisting a leg in normal walking; the problem that energy is stored without bouncing when a user takes a step and the energy is released for assisting when the user walks forwards is solved; and in addition, a knee joint torque when sitting down and standing up can be also relieved, so that physical consumption is reduced.

Description

technical field [0001] This patent relates to a power-assisted leg based on a multi-stage spring lock mechanism, which belongs to the field of medical auxiliary exercise equipment. Background technique [0002] At present, the artificial limb market for the disabled is considering the use of elastic materials to ensure the normal walking of people. Most of them use materials to simulate cushioning, or simply support them to meet the walking needs of disabled people. However, energy storage is used intensively in the field of sports for the disabled. Prosthetic limbs with high energy storage, due to their high elasticity and toughness, have extremely strong elasticity at each step and are not suitable for normal walking. Especially middle-aged and elderly people with disabilities or normal people, prosthetics or wearable exoskeletons need a mechanical structure considered from the perspective of normal walking, so as to solve the problem of energy storage not rebounding when...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61H3/00B25J9/00
CPCA61H3/00A61H2003/007A61H2201/0157A61H2201/1253A61H2201/14A61H2201/1642A61H2201/165A61H2201/1657A61H2205/10B25J9/0006
Inventor 曹恩国沈逸豪马冬妮
Owner JIANGNAN UNIV
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