CN108451754A - People with visual impairment explorer - Google Patents

Abstract

A pathfinder for the visually impaired, comprising a universal wheel, a fixed universal wheel U-shaped warping frame, an upper U-shaped frame, and a hand-pinchable movable telescopic rod. The four corners below the lower warping moving frame are fixed; the upper and lower U-shaped frames are inserted into the upper and lower holes of the connecting sleeve and fixed with snap buttons, and the hand-pinch telescopic rod is connected in the middle of the movable sleeve above the upper U-shaped frame. The present invention is a unique overall U-shaped design with front and rear universal wheel warping frames and hand-pinched movable telescopic rods, which can allow blind and visually impaired persons to push the pathfinder to walk quickly on the road in a safe area alone, and can independently The front wheels of the hand-push pathfinder can safely detect the up and down steps and other obstacles ahead, avoiding the risk of falling and falling for the visually impaired.

Description

Pathfinder for the visually impaired

technical field

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

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.

Contents of the invention

The purpose of the present invention is to provide a low-cost, easy-to-use, fully blind and visually impaired person can walk as fast as a sighted person on the road in a safe area alone, and can safely detect the up and down of the front through the front wheel of the roadfinder pushed by hand. Steps and other obstacles to avoid the risk of tripping and falling of the visually impaired by going up and down steps and other obstacles in front of you.

The pathfinder for visually impaired persons of the present invention is characterized in that: the design of the unique integral U-shaped belt universal wheel warping frame and hand-kneading movable telescopic rod.

The technical solution of the present invention is: the front, rear, left and right four universal wheels are respectively fixed with bolts and nuts at the four corners under the U-shaped lower tilting frame, and it is written on it that please give way to the visually impaired, and the fixed universal wheels are inserted into the tilting frame left and right. After connecting the lower hole of the casing, fix it with a spring buckle. The upper U-shaped frame of the present invention is inserted into the upper hole of the connecting sleeve from left to right and then fixed with snap buttons. The upper U-shaped frame can be adjusted according to the height of the user and folded after being pulled out from the casing. The hand-pinch telescopic rod of the present invention is connected in the middle of the movable sleeve above the upper U-shaped frame, the middle of the hand-pinch telescopic rod can adjust the length according to the needs of the user, and the hand-pinch handle is covered outside the pipe at the other end of the hand-pinch telescopic rod.

The low height of the front wheels and the width of the frame allow the visually impaired to walk quickly on the road in a safe area when the visually impaired person pushes the roadfinder of the present invention to walk forward. The front wheel of the pathfinder reminds the visually impaired that it is necessary to lower the hand-held movable lever here, and raise the front wheel and feet of the pathfinder tilting frame to step over steps and other obstacles. The front wheel of the roader sinks, reminding the visually impaired to go down the steps here and pay attention not to fall.

The pathfinder for visually impaired persons of the present invention can be made of various aluminum tubes, stainless steel tubes and industrial plastic tubes.

Description of drawings

The present invention is further described in detail below with reference to the embodiments provided by the accompanying drawings.

Accompanying drawing 1 is the structural representation of the present invention.

Detailed ways

In the accompanying drawings, the four universal wheels (1) are respectively fixed at the four corners below the U-shaped tilting frame (2) with bolts and nuts, and the upper U-shaped frame (3) is inserted into the upper hole of the connecting sleeve (4) from left to right. Fix it with a spring buckle, insert the tilting frame (2) left and right into the lower hole of the connecting sleeve (4) and fix it with a spring buckle, and pinch the movable sleeve (5) on the upper U-shaped frame (3) of the telescopic rod (6) by hand ) middle connection, the middle of the hand-pinch telescopic rod (6) can be adjusted in length according to the needs of the user, and the hand-pinch handle (7) is set outside the tube at the other end of the hand-pinch telescopic rod (6).

Claims (4)

1. A pathfinder for the visually impaired, characterized in that: it includes a universal wheel, a fixed universal wheel U-shaped warping frame, an upper U-shaped frame, a hand-kneading movable telescopic rod, and a hand-kneading handle; The universal wheel U-shaped tilting frame: including four left and right universal wheels (1) and U-shaped tilting frame (2) installed under the U-shaped lower tilting frame; The upper U-shaped frame includes a U-shaped tilting frame (2), an upper U-shaped frame (3) and a left and right connecting sleeve (4); The hand pinch movable rod includes a movable sleeve (5) that is placed on the upper U-shaped frame (3), the movable sleeve (5) is connected with the hand-pinch telescopic rod (6), and the other headgear of the hand-pinch telescopic rod (6) Pinch the handle (7). 2. A pathfinder for the visually impaired according to claim 1, characterized in that: the front, rear, left and right four universal wheels (1) are respectively bolted and nutted under the U-shaped lower tilting frame (2) The four corners are fixed, and it says please give way to the visually impaired. 3. The pathfinder for the visually impaired according to claim 1, characterized in that: the upper U-shaped frame (3) is inserted into the upper hole of the connecting sleeve (4) from left to right and then fixed with a spring buckle, and the tilting frame ( 2) Insert the left and right into the lower hole of the connecting sleeve (4) and fix it with snap buttons. The upper U-shaped frame (3) can be adjusted according to the height of the user and folded after being pulled out from the sleeve (4). 4. The pathfinder for the visually impaired according to claim 1, characterized in that: the telescopic rod (6) is connected in the middle of the movable sleeve (5) above the upper U-shaped frame (3), and the telescopic rod is pinched by hand (6) The length can be adjusted in the middle according to the needs of the user, and the hand-pinch handle (7) is set outside the tube at the other end of the hand-pinch telescopic rod (6).