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Ankle rehabilitative apparatus including ball hinge support moving pairs

A technology for moving joints and ankles, applied in passive exercise equipment, physical therapy, etc., can solve the problems of increased knee joint torque and lack of flexibility, and achieve the effects of simplified mechanism and weight, simplified structure, and easy control

Active Publication Date: 2017-10-20
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Study Shows Inflexible Ankle Increases Knee Rotational Moment

Method used

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  • Ankle rehabilitative apparatus including ball hinge support moving pairs
  • Ankle rehabilitative apparatus including ball hinge support moving pairs
  • Ankle rehabilitative apparatus including ball hinge support moving pairs

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Embodiment Construction

[0029] Below in conjunction with embodiment the present invention will be further described.

[0030] Such as Figure 1-4 As shown, the present invention provides a kind of ankle rehabilitator that contains ball joint support mobile pair, comprises working platform 1, guide rod sleeve 2, first push rod 3, second push rod 4, camshaft 5, first cam 6, Motor 7, driving sprocket 8, second cam 9, base 11, universal wheel 10, support 12, cross arm 13, intermediate shaft 14, first spring 15, driven sprocket 16, third push rod 17, the first Four ejector rods 18, middle guide rod 19, first roller 20, third cam 21, second roller 22, third roller 23, motor mount 24, second spring 25, ejector rod cover 26, spring fixing frame 27, Cross arm frame 28, motor speed control controller;

[0031] The intermediate shaft 14 is vertically supported on the base 11 through a thrust ball bearing, and a motor mount 24 is fixedly installed at the center of the bottom of the support 12, and the motor mo...

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Abstract

The invention discloses an ankle rehabilitative apparatus including ball hinge support moving pairs. The apparatus comprises a working platform, a guide rod sleeve, a first mandrel, a cam shaft, a first cam, a motor, a second cam, a pedestal, a universal wheel, a support, a cross arm, a middle shaft, a firs spring, a second mandrel, a middle guide rod, a first idler wheel, a third cam, a second idler wheel, a second spring, a mandrel sleeve and a motor speed regulation controller. According to the apparatus provided by the invention, cooperation of the cam mechanism and the springs is used for achieving buffer of the direction changing movement of the mechanism, thus being beneficial to protecting an ankle. According to the apparatus provided by the invention, one output shaft of the motor provides two kinds of power in two directions, the power in one direction is transmitted to the cam shaft via a chain wheel to allow the platform to move up-and-down left-and-right, while the power in the other direction drives the whole device to rotate to and fro by using cooperation of the second cam and the third idler wheel and the spring installed on the pedestal.

Description

technical field [0001] The invention relates to the technical field of medical rehabilitation equipment, in particular to an ankle rehabilitation device with a spherical joint support moving pair. Background technique [0002] The ankle joint can bear about 5 times body weight. It has been measured that 60% of the power is produced by the ankle joint. The ankle joint muscles and hip joint muscles coordinate and exert force during the lower limb movement. When kicking back (mainly the ankle joint), the hip joint muscles become a little relaxed. The power generated by the flexors (moving the thigh forward) and extensors (moving the thigh backward) of the hip joint only accounts for 30% to 50% of the total forward thrust. The ankle joint is a very important joint that promotes the movement of the human body, and the flexibility of the ankle joint also plays a great role in the coordinated movement of the human body. Studies have shown that a lack of mobility in the ankle join...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61H1/02
CPCA61H1/0214A61H1/0218A61H1/0266A61H2201/1642A61H2201/1207A61H2205/12Y02A50/30
Inventor 钱孟波阎绍泽
Owner TSINGHUA UNIV
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