Wheelchair footrest adjusting device

Abstract

The invention relates to the medical device technical field, and especially relates to a wheelchair footrest adjusting device; an inner gear is arranged in a rotary gear, and connected with an adjusting device cover; an outer gear is arranged outside the inner gear, and connected with an adjusting device spring arranged on an inner central shaft of the rotary gear; the inner gear units of the outer gear are engaged with outer gear units of the inner gear; one end of the adjusting device spring is fixed with an end cover, and the other end is connected with an adjusting device button through an adjusting device screw; the wheelchair footrest can be rotated to the inner side of the wheelchair so as to reduce package volume of the wheelchair; the rotary structure is in a gear engaged mode, so the footrest can freely rotate, thus satisfying different footrest angle and height demands of the wheelchair; when the adjusting device button is pushed, the inner and outer gears can be disengaged, and the footrest can be rotated to the needed angle; when the button is released, the outer gear is driven by the adjusting device spring so as to push the outer gear to be engaged with the inner gear, and the footrest stops in the position.

Description

【Technical field】 [0001] The invention relates to the technical field of medical devices, in particular to a footrest adjustment device for a wheelchair. 【Background technique】 [0002] The foot rest is an important part of the wheelchair. It is used to place the feet of the wheelchair user. Different wheelchair users have different requirements for the height and angle of the foot rest. At present, there are fixed, Outward rotation type, adjustable elevation angle, and detachable type, among them, the latter three can be combined with each other. For the adjustable elevation angle, the folding is generally carried out through the lever. Due to the size limit, it is difficult to turn the footrest to the upper side, so the wheelchair. The feet cause the packaging volume of the wheelchair to be very large, which increases the packaging and transportation costs of the wheelchair manufacturer. At the same time, the adjusted position of the footrest of the existing wheelchair c...

AI Technical Summary

Problems solved by technology

[0002] The foot rest is an important part of the wheelchair. It is used to place the feet of the wheelchair user. Different wheelchair users have different requirements for the height and angle of the foot rest. At present, there are fixed, Outward rotation type, adjustable elevation angle, and detachable type, among them, the latter three can be combined with each other. For the adjustable elevation angle, the folding is generally carried out through the lever. Due to the size limit, it is difficult to turn the footrest to the upper side, so the wheelchair. The feet lead to a very large packaging volume of the wheelchair, which increases the packaging and transportation costs of the wheelchair manufacturer. At the same time, the position of the existing wheelchair foot rest adjustment cannot meet the needs of wheelchair users for different angles and heights of the foot rest.

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