Blind crutch with stretchable cross rod

Abstract

The invention discloses a blind crutch with a stretchable cross rod. The blind crutch comprises a handle, a crutch body and a crutch tip; the stretchable cross rod is arranged at the crutch tip; idler wheels are arranged at two ends of the cross rod; when being stretched, the stretchable cross rod is vertical to the crutch body for probing a road surface, and when being contracted, the stretchable cross rod is parallel with the crutch body; a corresponding limiting device is used for positioning when the cross rod is in the stretching or contracting states. The blind crutch further comprises an input module for detecting obstacles around the blind crutch, an output module for outputting a sound or vibration signal, a processor for controlling the system to work, a stretching-contracting switch for detecting the state of the cross rod, and a battery module for providing energy for the work of the blind crutch. The processor can learn the obstacle condition around the blind crutch by detecting the information of the input module, and then the processor can feeds the obstacle condition back to a user by the output module, the user can stretch the cross with the idler wheels to push or contract and recover the cross rod to the traditional use state, and the blind crutch has high practicability by conveniently changing the use state and visually outputting the signal.

Description

Technical field [0001] The present invention involves a guide stick, especially a blind stick with a vertical rod. Background technique [0002] Most of the traditional blind sticks are straight, mainly composed of the handle, stick body, and pole tip.During the use process, the user kept swinging on the road on the left and right to explore the situation in front of it, and found and found obstacles in the road.Such a detection method is inefficient, and some small steps, small protrusions, and small pits are often missed, which causes accidents to cause accidents. It also makes the blind people who are injured lacked a sense of security and moved slower.If a horizontal rod is set near the ground near the ground, and a roller is set at both ends of the horizontal rod, it can be easily implemented.In this way, the detection efficiency is higher, and the road surface of a certain width is detected by the horizontal rod line, and there is no blind spot.If the road pushed by the hor...

AI Technical Summary

Problems solved by technology

[0003] However, if a mechanical crossbar is fixed at the front end of the blind stick, there are also some inconveniences. For example, in complex road conditions, crowded places, up and down stairs, etc., the traditional state of a single straight pole is more suitable for use.

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