Automatically erase whiteboard

Abstract

The invention provides a white board capable of performing automatic erasure and belongs to the field of white boards. The white board capable of performing automatic erasure comprises a white board body, wherein a frame is arranged on the periphery of the white board body, the white board body is installed on a support, linear motor tracks and straight rod board erasers are arranged on the frames on two sides of the white board body, two ends of each straight rod board eraser are installed on active cells of two linear motors, a travel switch and a travel switch B are arranged on a top frame and a bottom frame of the white board body respectively, one end of the travel switch and one end of the travel switch B are connected to a power supply, the other end of the travel switch and the other end of the travel switch B are connected to the input end of a control device, the output end of the control device is connected to a forward electric operating end and a reverse electric operating end of a linear motor controller, the control device is connected to the power supply through a switch, the white board is erased completely and thoroughly, and a speaker does not need to stop teaching for erasure.

Description

technical field [0001] The invention provides an automatic erasing whiteboard, which belongs to the field of whiteboards. Background technique [0002] When the power system staff have a meeting, the lecturer needs to give a written explanation of what he said. Since there are often not many office staff in the team, and the meeting room will not accommodate a large number of people, it will be very difficult to use a large blackboard. Waste, so the whiteboard is often used in office meetings, but the area of ​​the whiteboard is often relatively small, and it can be covered with text and graphics after a short period of writing, so it needs to be erased frequently, but the erasing process is very time-consuming and expensive. It consumes a lot of physical strength, increases the meeting time, reduces the efficiency of information transmission, and consumes more physical strength of the lecturers, and the lecturers only use the eraser to wipe, and the cleaning is very unclean...

AI Technical Summary

Problems solved by technology

[0002] When the power system workers hold a meeting, the speaker needs to give a written explanation of what he said. Since there are often not many office workers in the team meeting, and the meeting room will not accommodate a large number of people, it will be very difficult to use a large blackboard. Waste, so the whiteboard is often used in office meetings, but the area of ​​the whiteboard is often relatively small, and it can be covered with text and graphics after a short period of writing, so it needs to be erased frequently, but the erasing process is very time-consuming and expensive. It consumes a lot of physical strength, increases the meeting time, reduces the efficiency of information transmission, and consumes more physical strength of the lecturer, and the lecturer only uses a board eraser to wipe, and the cleaning is very unclean

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