自动化内部擦除黑板设计

Design of Automatic Internal Erasure Blackboard

针对教学中擦黑板存在卫生差、 效率低、 擦除不易和粉笔灰四处飘散的问题, 本文对普通黑板进行改造和设计, 利用逆向化的设计思想, 将普通平面黑板设计为封闭的腔体结构, 且把整块单书写面变成若干均匀的双书写面分块, 并在内腔安装电机、 擦除装置和控制装置等, 利用旋转特性实现分块的内外面交替, 使普通的人工外面擦除变为内部电动擦除, 较好地控制了粉笔灰的飘散, 并实现了自动化教学.

Aiming at the problems of poor hygiene, low efficiency, low erasure and dispersing of chalk ash in the teaching, this paper redesigned and designed the ordinary blackboard, and used the reverse design idea to design the ordinary plane blackboard as a closed cavity structure and turned the whole piece of writing surface into a number of uniform double writing surfaces. In the inner cavity, the motor, erasure device and control device were installed in the inner cavity. The inner and outer surface of the block was alternately realized by the rotation characteristic, and the ordinary artificial erasure was changed into the internal electric erasure, and the dispersion of the chalk ash was controlled well, and the automatic teaching was realized.