Multifunctional dust collecting device for teaching display boards

Abstract

The invention discloses a multifunctional dust collecting device for teaching display boards. The multifunctional dust collecting device comprises a supporting base and a rotating seat. Supporting plates are connected to the two sides of the rotating seat correspondingly. The teaching display boards are mounted on the outer walls of the supporting plates. A dust receiving mechanism used for collecting dust is arranged at the bottom end of each teaching display board. Each dust receiving mechanism comprises an arc-shaped seat mounted at the bottom end of the corresponding teaching display board. An arc-shaped groove is formed in each arc-shaped seat. A plurality of discharging holes are formed in the inner wall of each arc-shaped groove. A concentrating seat is arranged at the bottom end ofeach arc-shaped seat. The discharging holes are connected with the inner walls of the concentrating seats through bent pipes. An air pumping pipe is connected to the bottom end of each concentratingseat. The generated dust falls into the arc-shaped grooves of the arc-shaped seats at the bottom, meanwhile the floating dust can quickly enter the arc-shaped grooves in the arc-shaped seats under theaction of the air pumping pipes through the generated continuous attraction effect, and the dust entering the arc-shaped grooves further enters the concentrating seats through the discharging holes.

Description

technical field [0001] The invention relates to the technical field of teaching aids, in particular to a dust collection device for a multifunctional teaching display board. Background technique [0002] Teaching aids are teaching aids, which are the general term for all kinds of utensils used by students to intuitively and visually understand the teaching content and the utensils used by teachers in teaching. Teaching aids can improve students' learning interest, enrich perceptual knowledge, and help form clear concepts. Develop students' observation and thinking skills. It is generally divided into three categories: ordinary teaching aids, special teaching aids, and children's teaching aids. [0003] Ordinary teaching aids: including conventional and professional teaching aids used in basic education in primary and secondary schools and various professional education in colleges and technical secondary schools. Generally, there are real objects, which directly present obj...

AI Technical Summary

Problems solved by technology

[0008] (1) General teaching aids can only be used for single-function writing and display, which cannot meet different teaching needs;

[0009] (2) At the same time, when using teaching aids, since most of them still use chalk to write, more dust will inevitably be produced when writing and wiping, which seriously affects the health of teachers;

[0010] (3) Moreover, the general teaching aids adopt a fixed structure when used, not only cannot be moved, but also cannot be adjusted. When performing a demonstration, there is a lack of intuitive contrast and a good demonstration effect cannot be achieved, and traditional teaching aids can only achieve Face-to-face demonstrations cannot be shared remotely, which greatly limits the use of teaching aids

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