Double-guide-rail crossed lifting teaching blackboard capable of achieving 100% lifting rate

Abstract

The invention discloses a double-guide-rail crossed lifting blackboard capable of achieving the 100% lifting rate. The double-guide-rail crossed lifting blackboard is characterized by comprising an electronic white plate arranged in a frame and located on the rear side, a double-guide-rail crossed lifting blackboard set and a sliding plate located on the front side. The electronic white plate andthe double-guide-rail crossed lifting blackboard set are horizontally laid on the horizontal two sides in the frame, and the sliding plate can move horizontally in the frame. The sliding plate comprises a first blackboard body and a second blackboard body which can move vertically. The double-guide-rail crossed lifting blackboard set comprises two sets of blackboard bodies which are horizontally laid in the horizontal direction, and each set of blackboard bodies include the two blackboard bodies which can move vertically and are arranged in a front-back manner. By means of the teaching blackboard, the 100% area lifting rate is achieved, the blackboard utilization rate is increased, the blackboard wiping times are reduced, installation is convenient, and therefore the class efficiency is improved, and the class experiment transmitted to students through writing on the blackboard is also improved.

Description

technical field [0001] The invention relates to a teaching blackboard, in particular to a double guide rail cross lifting blackboard which can realize a blackboard area lifting rate of 100%. Background technique [0002] According to the investigation and research on the existing teaching blackboards, it is known that composite push-pull blackboards are widely used in the classroom at present, and the frame mostly adopts push-pull guide rails, and the position of the blackboard or electronic whiteboard can be moved reasonably to maximize the utilization of the blackboard. [0003] The traditional horizontal push-pull blackboard can move horizontally, but the high blackboard area is still not fully utilized; the new vertical and horizontal two-way push-pull blackboard, the thickness of the blackboard is about 140mm, only the front layer can be pushed and pulled, and it is the same layer as the electronic whiteboard The traditional blackboard is not widely used because it cann...

AI Technical Summary

Problems solved by technology

[0004] In the teaching process, especially in large classrooms that can accommodate hundreds of people in major colleges and universities, the height of teachers is generally below the center line of the blackboard, which makes most of the blackboards not widely used, and blackboard writing is gradually eliminated. ; or, when the teacher's writing workload is too heavy, the teacher needs to constantly erase the writing on the blackboard to teach more content, and wiping the blackboard has become a big burden for teachers

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