Interconnected blackboard convenient for switching black and white screens

A black-and-white screen and blackboard technology, applied in the field of interconnected blackboards, can solve the problems of affecting the progress of lectures and laborious manual operation, and achieve the effect of preventing random movement and facilitating writing

Pending Publication Date: 2022-08-05
李东清
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of the existing interconnected blackboards that need to manually switch between black and white screens, which affects the progress of the lecture, and the manual operation is laborious, the purpose of the present invention is to provide a black and white screen that can not only not affect the progress of the lecture, but also can be switched without manual switching Connected Blackboard

Method used

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  • Interconnected blackboard convenient for switching black and white screens
  • Interconnected blackboard convenient for switching black and white screens
  • Interconnected blackboard convenient for switching black and white screens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] An interconnected blackboard that is easy to switch between black and white screens. Figure 1-3As shown in the figure, it includes a limit frame 1, a writing board 2, a handle 3, a first connecting block 4, a guide rod 5, a display board 6, a return spring 7, an unfolding mechanism 8, a pulling mechanism 9 and a clamping mechanism 10. The left and right sides of the frame 1 are slidably provided with a writing board 2 that can be written on with chalk. The two writing boards 2 are made of color-coated steel plates, which are wear-resistant and not easy to discolor, and are very durable. A handle 3 is welded on one side of the writing board 2 away from each other, a first connecting block 4 is connected to the rear side of the lower part of the limit frame 1 by means of screw connection, and the left and right sides of the first connecting block 4 are slidably provided with guide rods. 5. A display panel 6 for synchronizing the contents on the tablet 2 is connected betw...

Embodiment 2

[0043] On the basis of Example 1, in figure 1 , figure 2 , Figure 8 and Figure 9 As shown in , it also includes a collection mechanism 11, the collection mechanism 11 includes a collection frame 110, a scraper 111 and a lifting plate 112, the bottom of the limit frame 1 is provided with a collection frame 110 for collecting chalk dust, the inner bottom of the collection frame 110 is right A discharge port is opened on the side for easy collection of chalk dust. The left side of the collecting frame 110 is slidably provided with a scraper 111 for scraping off the chalk dust, and a lift plate 112 is slidably provided on the discharge port.

[0044] When people use chalk to write teaching content on the writing board 2, some chalk ash will fall into the collection frame 110. When there is a lot of chalk ash stored in the collection frame 110, people can first slide the lift plate 112 upwards. The lifting plate 112 and the collecting frame 110 are fixed by friction. After sl...

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PUM

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Abstract

The invention relates to an interconnected blackboard, in particular to an interconnected blackboard facilitating switching of a black screen and a white screen. The invention provides the interconnected blackboard convenient for switching the black and white screens, which does not influence the teaching progress and does not need manual switching. An interconnected blackboard facilitating switching of a black screen and a white screen comprises a limiting frame, writing boards, handles, a first connecting block and the like, the left side and the right side of the limiting frame are each provided with one writing board used for a teacher to write teaching content in a sliding mode, the sides, away from each other, of the two writing boards are each provided with one handle, and the rear side of the lower portion of the limiting frame is provided with the first connecting block used for supporting. A driving motor works to enable a reel to rotate to fold a pull rope upwards, then a third connecting block rotates to drive two writing boards to move towards the outer side, the two writing boards do not block the display board any more, the display board can be used, then the writing boards are synchronized on the display board, and students in the back row can check teaching content written by a teacher more clearly.

Description

technical field [0001] The invention relates to an interconnected blackboard, in particular to an interconnected blackboard which is convenient for switching black and white screens. Background technique [0002] The interconnected blackboard can synchronize the written content on the left and right blackboards to the electronic whiteboard page in real time, solving the problem that the back row cannot see the writing on the whiteboard, and solving the problem that teachers in large classrooms cannot teach on the blackboard. [0003] A dust-free interconnected blackboard with publication number CN214083627U belongs to the technical field of teaching tools, and includes a board body, a bottom tray arranged at the bottom of the board body, an infiltration and cleaning structure arranged on the bottom tray for wetting and moistening the wiper, and a cleaning structure arranged on the bottom tray. The accommodating groove on the bottom tray is further provided with a water filli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L1/00A47B97/04B08B1/00B08B15/04G09B5/02
CPCB43L1/00A47B97/04B08B1/005B08B1/008B08B15/04G09B5/02
Inventor 李东清
Owner 李东清
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