Novel fast cleaning blackboard

Abstract

The invention provides a novel fast cleaning blackboard. The blackboard comprises an outer frame, a blackboard belt, left rotating shafts, right rotating shafts, a left wiping rod, a right wiping rod and a pulling plate, wherein the outer frame comprises a top plate, a bottom plate and two side plates, the two left rotating shafts are rotatably installed between the left end of the top plate and the left end of the bottom plate, the two right rotating shafts are arranged between the right end of the top plate and the right end of the bottom plate, the blackboard belt is an annular belt, the blackboard belt surrounds the outer sides of the left rotating shafts and the right rotating shafts, the left wiping rod is arranged between the two left rotating shafts, the outer side of the blackboard belt is wound round the left wiping rod and makes contact with the side wall of the left wiping rod, the right wiping rod is arranged between the two right rotating shafts, the outer side of the blackboard belt is wound round the right wiping rod and makes contact with the side wall of the right wiping rod, bristles or wiping cloth are arranged on the outer sides of the left wiping rod and the right wiping rod, the pulling plate is fixedly arranged on the outer wall of the front side of the blackboard belt, and therefore, the technical problems that when teachers and students use the blackboard frequently, time and labor are wasted when the blackboard is wiped, and falling dust is prone to cause harm to bodies of the teachers and the students can be solved.

Description

technical field [0001] The invention relates to the technical field of teaching tools, in particular to a novel and fast cleaning blackboard. Background technique [0002] The blackboard is one of the necessary supplies for teachers and students to attend classes. There are many kinds of blackboards available, but their functions are relatively single. Interrupting the class by wiping the blackboard also distracts the students' attention during class to a certain extent. When wiping the blackboard, the dust that falls will be inhaled by teachers and students and cause harm to their health. Blackboard and blackboard brush integrated devices have also appeared in recent years, but these devices still have the situation that wiping the blackboard is too slow or there is dust falling during the wiping process. Therefore, be badly in need of a kind of easy to use, save time and effort, clean and hygienic, can realize the fast cleaning blackboard of dust-free wiping. Contents ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to provide a new type of fast cleaning blackboard to solve the technical problem that wiping the blackboard is not only time-consuming and laborious when the frequency of teachers and students using the blackboard is too high, but also the falling dust is easy to cause harm to the body

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