Bionic prosthetic mechanical foot with parallel joints
A technology of mechanical feet and joints, applied in artificial legs and other directions, can solve the problems of inflexibility and convenience of feet, lack of movable support ability of toes, and inability of ankle joints to rotate back and forth, left and right, etc., and achieve the effect of increasing contact area and enhancing stability.
Inactive Publication Date: 2018-10-30
邢志平
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Problems solved by technology
[0002] For some disabled people whose feet have been amputated, the inability to walk normally will bring great inconvenience to their daily life. Most of the traditional prosthetics are integral structures, and the feet cannot be as flexible and convenient as human feet. The main reasons are: Because the integral structure of the toes does not have the ability to support activities, and the ankle joint cannot rotate back and forth, left and right
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[0015] Example: such as figure 1 , figure 2 , image 3 , Figure 4 As shown, a bionic prosthetic mechanical foot with parallel joints includes leg fixing cylinder 1, elastic hook and loop 2, parallel joint 3, bow support 4, crank A 5, rear heel 6, tension spring 7, and spring push rod 8. Front sole 9, crank B 10, connecting rod 11, toe 12. The leg fixing tube 1 is a tapered tube, the upper opening of the tube is large, the bottom is small, the rear half of the tube is provided with a semi-arc opening, and an elastic hook and loop 2 is installed in the semi-arc opening. 2. One end is hinged to one end of the semicircular opening, and the other end passes through the buckle provided at the other end of the semicircular opening. The bottom of the leg fixing tube 1 is fixedly connected with the fixed plate A 301 of the parallel joint 3 through three cylinders, the fixed plate B 306 of the parallel joint 3 is fixedly connected with the upper end of the bow support 4 through th...
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The invention provides a bionic prosthetic mechanical foot with parallel joints. The bionic prosthetic mechanical foot includes a leg fixing cylinder, an elastic hook and loop fastener, the parallel joints, an arched support, crank As, a heel, stretching springs, spring pushing rods, a front sole, crank Bs, connecting rods, and toes. The leg fixing cylinder is a conical cylinder. The upper openingof the cylinder is large and the bottom opening of the cylinder is small. The rear half surface of the cylinder is provided with a semi-arc opening. The elastic hook and loop fastener is arranged inthe semi-arc opening. One end of the elastic hook and loop fastener is hinged to one end of the semi-arc opening, and a buckle used for fixing a residual limb of a user is arranged on the other end ofthe elastic hook and loop fastener passing through the other end of the semi-arc opening. The toes of the mechanical foot can be lifted up by force according to road conditions, and the angle of thefront sole and the heel varies between 130 degree and 180 degree according to the road conditions and the force. In the case of a flat road, uphill, downhill and uneven road conditions, the force on the bottom of the foot is transmitted to the parallel joints through the arched support, and so the parallel joints swing back and forth or left and right to better adapt to the road conditions.
Description
technical field [0001] The invention relates to the technical field of medical devices, in particular to a bionic prosthetic mechanical foot with parallel joints. Background technique [0002] For some disabled people whose feet have been amputated, the inability to walk normally will bring great inconvenience to their daily life. Most of the traditional prosthetics are integral structures, and the feet cannot be as flexible and convenient as human feet. The main reasons are: The reason is that the toes of the integral structure do not have the ability to move and support, and the ankle joint cannot rotate back and forth, left and right. Therefore, we need a bionic mechanical foot to meet the needs of users for highly flexible prosthetics. Contents of the invention [0003] In view of the above problems, the present invention provides a bionic prosthetic mechanical foot with parallel joints. The present invention can make the mechanical foot swing back and forth, left an...
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IPC IPC(8): A61F2/66
Inventor 不公告发明人
Owner 邢志平