Blackboard with three surfaces capable of being turned

A three-side flipping blackboard technology, applied in the field of blackboards, can solve the problems of low utilization rate of blackboards, hazards, chalk dust and inhalation health of wipers, etc., to achieve the effect of thorough wiping, improved writing space, and easy flip angle

Inactive Publication Date: 2014-05-21
LUOYANG INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The blackboard used for teaching can only be written on one side at present. The utilization rate of this kind of blackboard is low. When the blackboard is full of writing, it needs to be manually wiped clean before wr

Method used

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  • Blackboard with three surfaces capable of being turned
  • Blackboard with three surfaces capable of being turned
  • Blackboard with three surfaces capable of being turned

Examples

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Embodiment Construction

[0015] As shown in the figure, a blackboard with three sides turned over is composed of a blackboard main body device 1 and a blackboard eraser device 2. The blackboard eraser device 2 is arranged on the back side of the blackboard main board device 1 to wipe the blackboard main board device. The blackboard main body device 1 The middle part is provided with a plurality of turning bars 101 which are turned over by the control of the power device. The turning bars are installed horizontally and horizontally. Both sides of 101 are respectively provided with a reserved board 102, and described blackboard eraser device 2 is made up of lead screw 201, blackboard eraser 202 and light bar 203 driven by motor, and blackboard eraser 202 upper and lower ends are respectively provided with a hole, is used for covering Be located on the lead screw 201 and the feed rod 203 that are arranged parallel to each other, and slide and set along the feed rod 203, wipe the blackboard on the back of ...

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PUM

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Abstract

A blackboard with three surfaces capable of being turned is composed of a blackboard body device and a blackboard eraser device, wherein the blackboard eraser device is arranged on the back surface of the blackboard body device and erases the blackboard. The blackboard has the automatic erasing function. The writing area of the blackboard can be increased without changing the width of the blackboard.

Description

technical field [0001] The invention relates to a blackboard, in particular to a blackboard that can be turned over for writing on three sides. Background technique [0002] The blackboard used for teaching can only be written on one side at present. The utilization rate of this kind of blackboard is low. When the blackboard is full of writing, it needs to be manually wiped clean before writing again. Manually wiping the blackboard requires a certain amount of time and physical strength for the wiper. The chalk dust produced in the process is easily inhaled by the wipers and poses a health hazard to them. Contents of the invention [0003] To solve the above technical problems, the present invention provides a three-sided turning blackboard, which has the function of automatic wiping, and increases the writing area of ​​the blackboard without changing the width of the blackboard. [0004] The technical scheme that the present invention adopts for solving the above-mention...

Claims

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Application Information

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IPC IPC(8): B43L1/04B43L21/00
Inventor 朱德荣谢科杨波王刚孙博文罗楠
Owner LUOYANG INST OF SCI & TECH
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