Multifunctional teaching desk with dust-suction blackboard eraser

Abstract

The invention relates to a multifunctional teaching desk with a dust-suction blackboard eraser. A storage battery and an electric control case are arranged inside the desk. The storage battery is charged by an external power supply and supplies power to the electric control case. The desktop is provided with an AC / DC socket. A button on the desktop controls the start and the stop of the motor of acentrifugal fan. A dust collecting case is arranged on the bottom plate of the desk. A cyclone separating device is arranged on the dust collecting case. The centrifugal fan is arranged at an upper opening of the cyclone separating device. A cloth bag is arranged at a circular tube end of an outlet elbow of the fan. A corrugated aspiration tube is arranged at a circular tube end of an inlet reducer tube of the separating device. The other end of the corrugated aspiration tube is connected with an aspiration tube of a blackboard eraser casing. A wood plate with brushing hair and a rubber plateare fixed on the blackboard eraser casing. Walking wheels which can change the direction are arranged at four corners below a bottom plate of the desk. The desk is provided with the autonomous powersupply and the movable walking wheels, so that the movement of the desk is convenient. The desk is good in dust suction and collection and well solves a problem about the dust caused by erasing a blackboard. The AC / DC socket on the desktop is applied to a plurality of teaching apparatuses.

Description

Multifunctional teaching desk with vacuuming blackboard eraser technical field The invention relates to teaching office supplies, especially a multifunctional teaching desk. Background technique Teaching desks are commonly used office supplies in teaching activities. There is not much difference between ordinary teaching desks and ordinary desks. The function is to place teaching plans, textbooks, chalk, blackboard erasers and related teaching aids. A lot of dust can be produced when wiping the blackboard with a common blackboard, which affects the health of teachers and students. Contents of the invention The invention provides a multifunctional teaching desk with a dust-absorbing blackboard eraser, which has a blackboard eraser with a good dust-absorbing effect, a power socket, a self-contained power supply capable of charging in time, and a mobile function. The technical solution adopted by the present invention to solve the technical problem is: the power supply ...

AI Technical Summary

Problems solved by technology

When wiping the blackboard with an ordinary blackboard, a lot of dust will be generated, which will affect the health of teachers and students

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