Erasable blackboard capable of moving left and right

Abstract

The invention discloses an erasable blackboard capable of moving left and right. The erasable blackboard capable of moving left and right mainly comprises two blackboard bodies, wheels, pulleys, a front track, a rear track, a transverse slot and an erasing device. The two blackboard bodies can move left and right through the wheels and the movable pulleys, and a function of labor saving is achieved. The transverse slot which connects the front track and the rear track has a certain gradient so that the blackboard bodies can move front and back freely. Four longitudinal slots which sponge devices can be inserted in are arranged on the back of each blackboard body. The wetness degrees of sponges in the sponge devices are different so that the blackboard bodies can be cleaned and wiped conveniently. When the sponges are dry, water can be directly added to the sponges through a water storage device. When the two blackboard bodies move face to face, the sponges on the back of the front side blackboard body will wipe and clean the rear side blackboard body. The whole wiping process is carried out both on the back of the front side blackboard body and on the back of the rear side blackboard body, so that dust is reduced beneficially. When the sponges are dirty, the sponges can be taken out to be washed at any time. Through the structure, the erasable blackboard capable of moving left and right has the advantages of being simple in structure, time-saving, labor-saving, clean, and low in pollution, improving teaching efficiency, and protecting the physical and mental health of both teachers and students.

Description

[0001] technical field [0002] The invention relates to a tool blackboard used in the teaching field, in particular to a novel blackboard device that can move left and right and can be wiped automatically. Background technique [0003] In today's multimedia era, projectors are mostly used in classrooms, and projectors will occupy part of the blackboard, making the blackboard unable to be fully utilized. However, the current pull-type blackboards are all movable up and down, which does not solve the above problems; the current pull-type blackboards , There will always be overlapping parts between several blackboards, which will affect the viewing effect of students; the current pull-type blackboard is very laborious to pull; in addition, the current blackboard eraser is time-consuming and laborious to wipe, and will also generate a lot of dust, which affects teachers. and the physical and mental health of students. Contents of the invention [0004] The purpose of the pre...

AI Technical Summary

Problems solved by technology

[0003]In today's multimedia era, projectors are mostly used in classrooms, and projectors will occupy part of the blackboard, making the blackboard not fully utilized, and the current pull-type blackboard is up and down Movable, does not solve the above problems; in the current pull-type blackboard, there will always be overlapping parts between several blackboards, which affects the viewing effect of students; the current pull-type blackboard is very laborious to pull; in addition, the current blackboard eraser is It is time-consuming and laborious to wipe, and it will also generate a lot of dust, which will affect the physical and mental health of teachers and students

Images