Compact active artificial limb ankle joint

An ankle joint, compact technology, applied in the field of compact active prosthetic ankle joints, can solve the problems of high rotation center, large space occupation, large ankle joint weight, etc., to achieve gait coordination, increased space utilization, and good walking. desired effect

Inactive Publication Date: 2021-07-02
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above problems, the present invention proposes a compact active prosthetic ankle joint, which aims to solve the problems of traditional active prosthetic ankle joints such as heavy weight, large space occupation and high rotation center

Method used

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  • Compact active artificial limb ankle joint
  • Compact active artificial limb ankle joint
  • Compact active artificial limb ankle joint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] see Figure 1 to Figure 4 As shown, a compact active prosthetic ankle joint is characterized in that it includes a bracket 1, a calf connector 2, a front cover 3, a gear assembly 4, a reducer 5, a motor 6, a prosthetic foot 7, a rotating shaft 8, and a prosthetic foot connection 9, two shaft supports 10, two rack and pinion components 11, screw components 12 and two linear guide rail components 13;

[0022] The shank connector 2 is fixed on the upper end of the bracket 1 by screws, the front cover 3 is fixed on the bracket 1 by screws, the lead screw gear 41 and the end of the lead screw 122 are fixedly connected by stop screws, and the reducer gear 42 is fixed on the reducer 5 On the output shaft, the screw gear 41 meshes with the reducer gear 42 to form a gear pair;

[0023] The output shaft of the motor 6 is connected to the reducer 5, the reducer 5 is fixed on the front end cover 3 by screws, the artificial foot 7 is fixed on the lower end of the artificial foot co...

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Abstract

The invention discloses a compact type active artificial limb ankle joint, which comprises a bracket, a leg connecting piece, a front end cover, a gear assembly, a speed reducer, a motor, an artificial foot, a rotating shaft, an artificial foot connecting piece, two shaft supporting pieces, two gear and gear rack assemblies, a lead screw assembly and two linear guide rail assemblies. According to the invention, the motor reducer structure is a power source, the artificial foot is driven by the movement of the gear and the gear rack to realize toe flexion and dorsal flexion movement of the ankle joint, the space utilization rate is increased by innovatively applying the gear and gear rack structure, the structure is compact, the size is small, and the ankle joint has enough torque when pedaling the ground, so that the whole artificial ankle joint has the advantages of large torque and light weight; and the rotating center of the ankle joint is low and is close to the rotating center of the ankle joint of a healthy person in height, so that the walking requirement of the person can be better met, and the gait is more coordinated.

Description

technical field [0001] The invention belongs to the technical field of rehabilitation aids, in particular to a compact active artificial limb ankle joint. Background technique [0002] Ankle joint prosthesis, as a rehabilitation device, can meet the daily use requirements of patients with lower limb disabilities. Prosthetic ankle joints can generally be divided into passive type and active type. Passive ankle joints are generally single-axis ankle joints or universal ankle joints. Passive ankle joints do not have the disadvantages of self-adjusting gait and inability to provide torque, which makes people walking When the energy consumption increases and it is easy to make the gait asymmetric; the active ankle joint refers to the ankle joint with additional torque supply, which can be divided into electric, hydraulic or pneumatic types according to the energy source. This kind of ankle joint can reduce the energy consumption of amputees And provide good gait control. Litera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/66A61F2/70
CPCA61F2/6607A61F2/68A61F2002/701
Inventor 任雷修豪华王旭钱志辉任露泉
Owner JILIN UNIV
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