Cultural presentation device capable of absorbing chalk dust for classroom

Abstract

The invention discloses a cultural presentation device capable of absorbing chalk dust for a classroom, and the device comprises a moving device, a dust absorbing device and a presentation device. Themoving device comprises a wall fixing plate, and the wall fixing plate is fixedly connected with a wall through a screw. The front side of the wall fixing plate is horizontally provided with a long groove, and the inner side of the long groove is horizontally provided with a moving groove. The bottom of the moving groove is fixedly provided with a plurality of groups of splines, and the splines are uniformly arranged at the bottom of the moving groove. The interior of the moving groove is vertically provided with a moving gear, and the front side of the moving gear is provided with a fixed block. Moreover, the central part of the rear side of the fixed block is movably connected with the central part of the front side of the moving gear through a pin shaft, and the front side of the fixedblock is fixedly provided with the dust absorbing device. The moving device enables the dust absorbing device and the presentation device to move, so that the dust absorbing device absorbs the chalkdust, and the presentation device horizontally adjusts the position for watching.

Description

technical field [0001] The invention relates to the technical field of cultural propaganda, in particular to a cultural display device for absorbing chalk dust for classrooms. Background technique [0002] Chinese culture, called Huaxia culture and Han culture, refers to the unique Chinese culture that has evolved and developed on the basis of the Central Plains culture. After more than a thousand years of historical evolution, the major ancient Chinese civilizations have long interacted and merged. Today, a China, with splendid culture, stands in the east of the world with rich and colorful cultural elements. Nowadays, student education only exists in the education of books, and they have no intention of contacting with the outside world. Students are buried in books and have little understanding of the 5,000-year Chinese culture. , and the introduction of foreign cultures has caused some people to worship foreign things and fawn on foreign countries, so that the excellent ...

AI Technical Summary

Problems solved by technology

[0002] Chinese culture, called Huaxia culture and Han culture, refers to the unique Chinese culture that has evolved and developed on the basis of the Central Plains culture. After more than a thousand years of historical evolution, the major ancient Chinese civilizations have long interacted and merged. Today, a China, with splendid culture, stands in the east of the world with rich and colorful cultural elements. Nowadays, student education only exists in the education of books, and they have no intention of contacting with the outside world. Students are buried in books and have little understanding of the 5,000-year Chinese culture. , and the introduction of foreign cultures has caused some people to worship foreign things and fawn on foreign countries, so that the excellent traditional culture of China for five thousand years cannot be inherited. There is no cultural propaganda equipment in the classroom, and cultural transmission cannot be carried out to students in their spare time, and the chalk dust on the blackboard in the classroom is harmful to the health of students and teachers. Therefore, this invention proposes a cultural display for classrooms that absorb chalk dust device to solve the above problems

Images