Classroom blackboard dust removal device

Abstract

The invention discloses a classroom blackboard dust removal device. The classroom blackboard dust removal device comprises a dust suction mechanism arranged above a blackboard and dust collection mechanisms arranged on the two sides of the blackboard. The dust suction mechanism comprises a transfer box, draught fans arranged in the transfer box, a dust collection pipe arranged on the transfer boxand an eraser arranged at the lower end of the dust collection pipe. A dust collection space is arranged on the periphery of the eraser. The lower end of the dust collection pipe communicates with thedust collection space. Each dust collection mechanism comprises a dust collection box and a dust dropping pipe connecting the transfer box and the dust collection box. According to the classroom blackboard dust removal device, the dust suction mechanism is arranged above the blackboard, the dust content of the air in a classroom is effectively reduced, and time and labor are saved.

Description

technical field [0001] The invention belongs to the field of technical equipment for removing fine particles, and in particular relates to a blackboard dust removal device for classrooms. Background technique [0002] The blackboard is an essential and important facility in the teaching process. It is used to repeatedly write teaching knowledge points on the flat board, so that students can intuitively familiarize themselves with classroom teaching knowledge. With the continuous advancement of technology and the continuous pursuit of the learning environment, how to prevent Dust pollution in the teaching process and reducing the damage to the health of teachers and students have gradually become the top priority of teaching tasks. There are two common measures to reduce chalk dust in the classroom: [0003] One is to improve the material and production process of chalk. The idea of ​​this plan is to add oil or polyalcohol to ordinary chalk as a binder, and then add fillers ...

AI Technical Summary

Problems solved by technology

[0003] One is to improve the material and production process of chalk. The idea of ​​this plan is to add oil or polyalcohol to ordinary chalk as a binder, and then add fillers with a larger specific gravity, such as clay, marl, Cement, etc. can increase the specific gravity and volume of chalk dust, and it is not easy to scatter, but in practical applications, its effect on reducing chalk dust pollution is not very obvious, and it is easy to adhere to the surface of the blackboard, and cannot be completely wiped off;

[0004] The second is to improve the structure of the blackboard eraser. For example, the patent document whose application publication number is CN108501583A discloses a new type of environmental protection teaching blackboard with dust removal function. The dust suction function is added in the blackboard eraser, but this type of structural design needs to clean the blackboard repeatedly. The dust collected in the wiper will cause secondary pollution

Images