Full-automatic teaching blackboard

Abstract

Disclosed is a full-automatic teaching blackboard. A mechatronics method is adopted, a main motor drives a chain device to drive the reel type blackboard formed by an elastic steel sheet, and the set motion of the blackboard face of the blackboard is achieved by applying a PLC control device. The full-automatic teaching blackboard comprises a blackboard panel, a support board, an upper reel, a lower reel, the main motor, a chain wheel and chain device, an erasing device, a control panel, a control box and the like. The blackboard panel is supported in a blackboard structure frame through the upper reel and the lower reel. The upper reel and the lower reel are driven by a roller chain wheel and a roller chain which are driven by the main motor. The back of the blackboard panel is supported by the support board. When the main motor drives a driving shaft to rotate, the driving shaft drives a left driving chain wheel and a right driving chain wheel to rotate simultaneously, the driving chain wheels drive an upper driven chain wheel and a lower driven chain wheel to rotate correspondingly at the same speed, so that the upper reel and the lower reel are driven to rotate at the same speed, and the blackboard is driven to move up and down. Through control of the control box, forward rotation, reverse rotation, distance rotation, timing rotation and other functions of the reels of the blackboard can be achieved, and the full-automatic usage requirements are met.

Description

technical field [0001] As an important classroom teaching device, blackboards are widely used in all educational settings. The purpose of the present invention is to provide a fully automatic teaching blackboard with mechatronics. Background technique [0002] The blackboard is the most important classroom teaching device and is widely used in all schools and various educational settings. There are two types of fixed blackboards and sliding blackboards that are most commonly used at present. The most widely used fixed blackboard has the advantages of simple structure, low price and easy installation, which make it the most widely used. However, because the height and position of the blackboard cannot be changed, only the writer can change the writing height, which brings about three major problems: First, the position of the writing content left on the blackboard by the writer is different due to the difference in body height and the amount of writing. Create blind spots ...

AI Technical Summary

Problems solved by technology

However, because the height and position of the blackboard cannot be changed, only the writer can change the writing height, which brings about three major problems: First, the position of the writing content left on the blackboard by the writer is different due to the difference in body height and the amount of writing. Blind spots for learners

Second, the effective utilization rate of the blackboard layout is low

The third is that the writer must change the posture when writing, and write on tiptoe or bend down, resulting in poor writing effect

The up and down sliding blackboard solves the problems of some fixed blackboards, but the writing position of the blackboard layout is blocked, the layout utilization is limited and the up and down movement is inconvenient, etc., which still have a certain impact on users and teaching work

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