Outdoor teaching blackboard capable of absorbing dust

Abstract

The invention provides an outdoor blackboard for teaching which can absorb dust, and relates to the technical field of teaching. The dust-absorbing outdoor blackboard for teaching includes a bottom board and a blackboard body, the blackboard body is located above the bottom board, a placement box is fixedly connected to the lower surface of the blackboard body, and support frames are fixedly connected to both sides of the upper surface of the bottom board. The end of the frame away from the bottom plate is fixedly connected with an adjusting cylinder, and both sides of the lower surface of the storage box are fixedly connected with fixing blocks. The dust-absorbing outdoor blackboard for teaching is equipped with motors, rotating shafts, fan blades, support columns and placement plates, so that the outdoor blackboard for teaching can absorb dust, effectively solving the problem that the outdoor blackboard for teaching is used to impart knowledge to teachers. A lot of dust will be generated during writing on the blackboard, and the dust blocking board of the current outdoor blackboard for teaching is inconvenient to centralize the dust. These dusts are easily inhaled by teachers or students into the lungs and cause respiratory diseases.

Description

technical field [0001] The invention relates to the technical field of teaching, in particular to an outdoor blackboard for teaching that can absorb dust. Background technique [0002] With the advent of the 21st century, people's living standards are constantly improving, and the level of science and technology is constantly improving. The country is also paying more and more attention to teaching. Teaching is a unique human talent cultivation composed of teachers' teaching and students' learning. Activities, through this kind of activities, teachers guide students to learn and master cultural and scientific knowledge and skills purposefully, in a planned and organized way, and promote the improvement of students' quality, so that they can become the people needed by the society. There are many equipments needed for teaching, Among them, the outdoor blackboard for teaching is one of them. [0003] Outdoor blackboards for teaching are used to impart knowledge to teachers, a...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a dust-absorbing outdoor blackboard for teaching, which solves the problem that the dust blocking plate of the current outdoor blackboard for teaching is inconvenient to centralize the dust, and the dust is inhaled into the lungs by teachers or students It is easy to cause diseases of the respiratory system, and because the outdoor blackboard for teaching is inconvenient to adjust the viewing angle, some students who are listening to the class cannot clearly observe the outdoor blackboard for teaching

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