Mathematics teaching board with dust collection function

Abstract

The invention provides a mathematics teaching board with a dust collection function. The mathematics teaching board comprises a support plate, wherein a height adjusting device is arranged at the lower side of the support plate, the height adjusting device comprises a support post, the bottom end of the support post is fixedly connected with the upper side of a base, a groove with an upward opening is formed in the support post, a lower movable block is arranged in the groove, the section of the lower movable block is in the shape of a right trapezoid, the oblique plane of the lower movable block faces the upward direction, movable rods are fixedly connected to two sides of the lower movable block, a movable through hole is formed in the left side of the support post, the movable rod on the left side is positioned inside the movable through hole, and the movable rod on the right side is connected with a drive device. The mathematics teaching board has the beneficial effects that the drive device drives the lower movable block to move towards the right side, the lower movable block enables an upper movable block to move upwards through a rolling wheel and a rolling wheel bracket, and thus a fixing post drives the increase of the height of the support plate; when the drive device enables the lower movable block to move towards the left side, the fall of the upper movable block isrealized.

Description

technical field [0001] The invention relates to the technical field of mathematics teaching boards, in particular to a mathematics teaching board with a dust-absorbing function. Background technique [0002] Teaching board, that is, the utensils used for writing demonstrations in the education industry. Usually, teaching boards are boards placed in classrooms or conference rooms. The content is written with chalk or water-based pens to play the role of explaining and demonstrating. Therefore, the importance of teaching boards in the classroom is self-evident. [0003] The function of the teaching board in the prior art is comparatively simple, can only realize the function of writing, but can not realize other functions, and this has just caused the teacher to have more inconvenience in the teaching process, such as: when the teacher writes on the blackboard in the classroom Finally, the chalk on the blackboard needs to be erased. If a traditional blackboard eraser is used,...

AI Technical Summary

Problems solved by technology

[0003] The function of the teaching board in the prior art is comparatively simple, can only realize the function of writing, and can not realize other functions, and this has just caused the teacher to have more inconvenience in the teaching process, such as: when the teacher writes on the blackboard in the classroom Finally, the chalk characters on the blackboard need to be erased. If a traditional blackboard eraser is used, the workload will be larger, and more valuable time in the classroom will be wasted; the angle of the existing teaching board cannot be adjusted, and its use effect is poor; in addition, when needed When displaying some albums to students, the existing teaching board is very inconvenient to hang; due to the large font on the blackboard, the content displayed on the teaching board at the same time is less, and it is difficult to store if the teaching board is enlarged; in the prior art, teaching The height of the board is generally fixed and has certain limitations

Images