A portable blind writing and marking device

Abstract

The invention discloses a portable writing and marking device for a blind person. The portable writing and marking device for the blind person comprises a pen point, a pen housing, a heating assembly, a feeding assembly, a feeding channel, a control circuit board, an operation panel and a power supply assembly. The feeding channel is connected with the feeding assembly and the pen point. The feeding channel penetrates through the heating assembly. The pen point comprises a spring seat shield, a pen core shield, a front pen core, a rear pen core, a spring seat, a spring and a capacitance sensor. A taper hole and a discharge hole are respectively formed in a step through hole in the pen core shield. The lower end of the front pen core extends out from the discharge hole. The rear pen core is elastically connected with the spring seat. Two electrodes of the capacitance sensor are respectively arranged on the rear pen core and the spring seat. By adopting the pen point, the feeding assembly and the heating device, braille writing and marking without the guiding of a braille plate are realized, the writing quality is ensured, and the configuration of the braille writing device is substantially simplified; in addition the portable writing and marking device for the blind person is small in size, convenient and labor-saving in writing and capable of flexibly applied to various kinds of occasions, so that the portable writing and marking device is worth of wide application and popularization in visually impaired people.

Description

technical field [0001] The invention relates to the field of assistive devices for the blind, in particular to a portable writing and marking device for the blind. Background technique [0002] The visually impaired are the most vulnerable group among the disabled. To enable the visually impaired to participate in social life on an equal footing, education must be used to improve the cultural quality of the visually impaired. Braille, also known as Braille and raised characters, its smallest unit is "square", which is composed of six dots arranged in a certain irregular pattern. It is specially designed for the visually impaired and relies on tactile perception. It is also a visually impaired The main tool for people to learn and communicate in writing. Therefore, the Braille manual writing device is their necessary auxiliary stationery. [0003] The writing of traditional Braille is mainly realized through Braille board, Braille pen, Braille paper or other papers. The ex...

AI Technical Summary

Problems solved by technology

[0007] To sum up, so far, all Braille writing devices require a Braille pen to be used in conjunction with a Braille board, and there is no portable Braille writing and marking device that can be separated from the Braille board to realize Braille on any paper Quick writing, or setting blind tactile marks on the surface of any object, or directly drawing continuous lines or graphic patterns that can be recognized by the blind by touch

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