Automatic dust absorption environment-friendly blackboard eraser

Abstract

The invention relates to an automatic dust absorption environment-friendly blackboard eraser and belongs to the technical field of teaching equipment. A driving mechanism comprises a first screw rod motor, a first screw rod, a first nut seat, a first motor bearing seat, a second screw rod motor, a second screw rod, a second nut seat and a second motor bearing seat. Ablackboard eraser portion comprises a fixing plate, an eraser base seat, bristles and a piece of lint. A squeezing force adjusting mechanism comprises a first adjusting spring, a first adjusting bar, a first adjusting elliptical wheel, an adjusting plate, a second adjusting elliptical wheel, a second adjusting bar, a second adjusting spring and an adjusting air cylinder. Adust absorption mechanism comprises a dust absorber, a rectangular bracket, a dust absorbing pipe and a dust absorbing shade. Aspray dust removing mechanism comprises a spray generator and a connecting pipe. Chalk writing on a blackboard can be cleaned automatically and the cleaning process is convenient and quick. The automatic dust absorption environment-friendly blackboard eraser is not liable to leave white traces, dust around the eraser can be timely absorbed, good air quality in a classroom can be kept, efficiency of blackboard wiping can be improved, and time and efforts are saved.

Description

technical field [0001] The invention relates to an automatic dust-absorbing environment-friendly blackboard eraser, which belongs to the technical field of teaching equipment. Background technique [0002] Blackboard is one of the essential teaching facilities in school teaching equipment. Although electronic teaching is gradually being promoted, blackboard teaching is still the most common in existing teaching. In blackboard teaching, teachers can update blackboard writing at any time according to needs, usually a section After class, the entire blackboard is often written, and between classes, students are required to wipe the blackboard for the next class. The blackboard erasers in the prior art are small and easy to grasp, and the wiping area is small each time. When wiping the blackboard, due to The body and the blackboard are parallel, so it is inconvenient to apply force, and it is time-consuming and laborious to clean; the dust flying during the cleaning process will...

AI Technical Summary

Problems solved by technology

[0002] Blackboard is one of the essential teaching facilities in school teaching equipment. Although electronic teaching is gradually being promoted, blackboard teaching is still the most common in existing teaching. In blackboard teaching, teachers can update blackboard writing at any time according to needs, usually a section After class, the entire blackboard is often written, and between classes, students are required to wipe the blackboard for the next class. The blackboard erasers in the prior art are small and easy to grasp, and the wiping area is small each time. When wiping the blackboard, due to The body and the blackboard are parallel, so it is inconvenient to apply force, and it is time-consuming and laborious to clean; the dust flying during the cleaning process will not only endanger the health of the students on duty, but also do great harm to the health of the students in the classroom. Accumulation of a layer of dust affects the sanitation in the classroom; for short students, they have to stand with the aid of stools and other aids to wipe the blackboard, which poses a certain safety hazard

Although there are some mechanized equipment in the prior art to wipe the blackboard, there is still the problem that the dust cannot be removed in time, and some teachers write handwriting more forcefully, which easily leaves white traces when wiping the blackboard; after long-term use, there is a contact between the blackboard and the blackboard. The phenomenon of looseness leads to unsatisfactory wiping effect and affects the efficiency of wiping the blackboard

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