Path-finding device for people with visual impairment

Abstract

The invention discloses a path-finding device for people with visual impairment. The path-finding device comprises universal wheels, a fixed universal wheel U-shaped prying rack, an upper U-shaped rack and a hand-held movable telescopic rod, wherein the four universal wheels are fixed to four corners on the lower surface of a U-shaped lower prying rack via bolts and nuts; the left and right sidesof upper and lower U-shaped racks are inserted into upper and lower holes of connecting sleeves and are fixed by elastic buckles; and the hand-held telescopic rod is connected to the middle of a movable sleeve on the upper surface of the upper U-shaped rack. The path-finding device provided by the invention, through unique design that the path-finding device is integrally represented as a U-shapedstructure which is provided with the front and rear universal wheel prying racks and the hand-held movable telescopic rod, can enable the total blindness people with visual impairment to independently walk in pavements of safety regions rapidly in a mode of pushing the path-finding device and can safely detect staircases and other obstacles in front side by front wheels of the path-finding devicewhich is pushed by hands, so that a risk that the people with visual impairment gets fallen and hurt by the staircases in front side.

Description

technical field [0001] The invention relates to a kind of blind and visually impaired person who can block the front wheel of the pathfinder when walking on a flat road and suddenly encounters steps and other obstacles, and the front wheel of the pathfinder will automatically sink when going down the steps, so as to remind the visually impaired It is a hand-push walking fast pathfinder for the visually impaired who are safe on their feet and step up and down steps to avoid falling. Background technique [0002] For many years, blind and visually impaired people, if there is no discerning person and a guide dog to lead the way, they can only walk slowly with the blind stick from left to right and from right to left if they want to avoid falling down. The height is at least 9 cm, so 90% of the up and down steps and other obstacles with a height of less than 8 cm in front of you cannot be detected with a blind stick. The smart assistive device glasses invented by American scien...

AI Technical Summary

Problems solved by technology

[0002] For many years, blind and visually impaired people, if there is no discerning person and a guide dog to lead the way, they can only walk slowly with the blind stick from left to right and from right to left if they want to avoid falling down. The minimum height is 9 cm, so 90% of the up and down steps and other obstacles with a height of less than 8 cm in front of you cannot be detected with a blind stick. The smart assistive device glasses invented by American scientists are useless to the blind. People with amblyopia and visual impairment can only see far away when they walk after wearing it, and cannot look down at near, so they cannot find the up and down steps and other obstacles in front of them, and the price is more than 100,000. bear

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