Handheld automatic blackboard eraser

Abstract

The invention relates to a handheld automatic blackboard eraser which comprises a fixed and horizontal guide mechanism, a vertical guide and lock mechanism, a blackboard eraser subassembly, a dust collector, and a power supply and control mechanism, wherein the fixed and horizontal guide mechanism is fixedly connected to a wall body; the horizontal movement of the entire device is achieved through a guide wheel and a transverse guide rod, and the vertical guide and lock mechanism achieves free movement and reliable locking in the vertical direction through a vertical guide rod, a guide sleeve and a bolt locking mechanism. The combined movement in two directions can achieve erasing of a special area on the blackboard. The blackboard eraser subassembly drives the blackboard eraser to rotate so as to achieve the purpose of erasing handwriting through a motor, and the dust collector is fixedly connected with a housing of the blackboard eraser subassembly to collect dust. The handheld automatic blackboard eraser has the advantages that the automation of the action of erasing the blackboard can be achieved; the erasing area can be arbitrarily selected, and the handheld automatic blackboard eraser is simple in structure, small in volume, low in price, available in power failure, also suitable for a push-pull dual-layer blackboard, environment-friendly and healthy and wide in application prospect.

Description

technical field [0001] The invention relates to a blackboard eraser, in particular to a hand-held automatic blackboard eraser. Background technique [0002] Blackboards and blackboard erasers are essential teaching tools in schools. As everyone knows, the method for erasing chalk writing on the blackboard generally has two kinds of manual erasing and automatic blackboard wiping device. The manual method is to use the friction between the ordinary blackboard eraser or rag made of fabric and the blackboard to erase the chalk writing through the movement of the personnel's arm. Its disadvantages are manual operation and high labor intensity. Long-term use will not only cause discomfort in the arms of the personnel, but also the flying chalk dust will cause harm to the respiratory system of the personnel. Its advantages are low price, no energy consumption, strong adaptability, and can arbitrarily select a specific area on the blackboard to erase while retaining writing in oth...

AI Technical Summary

Problems solved by technology

However, the above defects in existing automatic blackboard wiping technology and products have seriously affected its further promotion and application.

Images