A board eraser with comprehensive dust collection function

Abstract

The invention relates to a blackboard eraser with a comprehensive dust collection function. The blackboard eraser comprises a main body, a cleaning layer, a sliding channel and a dust removal fan, wherein a piston air rod is arranged inside the main body, moreover, a placement plate is connected to the top of the piston air rod, the main body is connected with the piston air rod through screws, and the piston air rod is connected with the placement plate through screws; and the cleaning layer is arranged above the placement plate, the sliding channel is formed below the main body, moreover, alimiting plate is arranged on the inner side of the sliding channel, the sliding channel is movably connected with the main body, moreover, the sliding channel is movably connected with the limiting plate, and a falling collecting box is arranged on the outer side of the sliding channel. The blackboard eraser with the comprehensive dust collection function has the beneficial effects that a water absorption pad is arranged so that the possibility that the blackboard eraser leaks during use can be prevented, the using effect of the blackboard eraser is improved, and then the working efficiency of the blackboard eraser is effectively enhanced.

Description

technical field [0001] The invention relates to the technical field of teaching appliances, in particular to an eraser with a comprehensive dust collection function. Background technique [0002] Blackboard eraser is an indispensable teaching aid in students’ daily study and teachers’ daily teaching, and ordinary blackboard eraser also has its inevitable disadvantages, that is, it will cause chalk dust to float in the process of use, and it will inevitably be used by teachers or teachers. Students inhale it into their lungs, causing certain diseases over time, so a dust-free blackboard eraser is needed. [0003] Existing erasers tend to generate a large amount of dust during use, which will cause damage to the lungs of teachers and students in the front row, and the falling dust will increase the cleaning time of the classroom. It is directly fixed to the blackboard, causing the device to be easily lost, which is not convenient for teachers to use the device conveniently, r...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of blackboard eraser with comprehensive dust-absorbing function, to solve the problem that the existing blackboard eraser proposed in the above-mentioned background technology is easy to produce a large amount of dust when in use, and it will affect the lungs of the teachers who use it and the students in the front row. It will cause injury, and the falling dust will increase the cleaning time of the classroom. At the same time, the device cannot be directly fixed to the blackboard when it is in use, resulting in easy loss of the device, which is not convenient for teachers to use the device conveniently, resulting in a decline in the teaching process

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