CN204322835U

CN204322835U - Dustless Water-free environment-friendlyurinal Luminous blackboard

Info

Publication number: CN204322835U
Application number: CN201420788482.7U
Authority: CN
Inventors: 季晓煜
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-12-15
Filing date: 2014-12-15
Publication date: 2015-05-13
Anticipated expiration: 2024-12-15

Abstract

Dustless Water-free environment-friendlyurinal Luminous blackboard, comprises blackboard framework, diffusion barrier, light guide plate, blackboard eraser, LED lamp bar and black backboard.Described light guide plate is fixed in blackboard framework, described diffusion barrier is placed in the front face surface of light guide plate, described blackboard eraser is placed between light guide plate and diffusion barrier, described LED lamp bar is arranged in the gap between blackboard framework and light guide plate, and described black backboard is placed on the backside surface of light guide plate.When the utility model uses, the pen-like tool that available finger or any solid material are made writes, when diffusion barrier pointed or pen-like tool pressure and cave in time, depressed area is close to light guide plate surface due to smooth surface, can be luminous, forms writing, during erasing out handwriting, attract blackboard eraser to move by the hand-held block permanent magnet in outside, diffusion barrier depressed area is separated with light guide plate, and blackboard writing can be eliminated.Compared with prior art, the utility model writes without chalk, without pen, also without projector and TV screen, no material consumption, pollution-free, flicker free, is conducive to the healthy and vision protection of teachers and students.

Description

Dustless Water-free environment-friendlyurinal Luminous blackboard

Technical field

The utility model relates to teaching equipment field, particularly a kind of dustless Water-free environment-friendlyurinal Luminous blackboard.

Background technology

Blackboard is the requisite educational aid of school, but traditional blackboard exists chalk ash pollution problem, affects teachers and students healthy.Many products attempting alternative blackboard have been there is, as blank, electronic whiteboard, the LED fluorescent plate etc. write with e-Pointer with projector projects or touch display screen display write with pen for this reason.In the product of these alternative blackboards, there is the problems such as water-color paintbrush smell is large, consumptive material is fast, reflective impact large, writing erasing difficulty in the blank that pen is write; The LED fluorescent plate consumptive material used e-Pointer cost write with e-Pointer is high, writing erasing difficulty, and reflective impact is large, blackboard area is little; Have that product price is expensive, plate face is little, screen flicker is tired out eye and hindered the problems such as eye with the electronic whiteboard of projector projects or touch display screen display and tele-board, and adopt that the touch electronic whiteboard writing resolution ratio of projecting apparatus is poor, contrast is not high, so existing blackboard substitute products are difficult to replace traditional blackboard.

Utility model content

The purpose of this utility model solves existing blackboard substitute products Problems existing exactly, propose a kind of without chalk, without pen, also without the environmental protection Luminous blackboard of projecting apparatus and TV screen, as long as just can write on blackboard with finger or the smooth pen-like tool of any head, easy to use, traditional blackboard can be replaced, and blackboard self is luminous, just can know display writing, figure without the need to external lights, effect is better than traditional blackboard.

For achieving the above object, the dustless Water-free environment-friendlyurinal Luminous blackboard that the utility model proposes, comprises blackboard framework, diffusion barrier, light guide plate, blackboard eraser, LED lamp bar and black backboard.Described light guide plate is fixed in blackboard framework, described diffusion barrier is placed in the front face surface of light guide plate, described blackboard eraser is placed between light guide plate and diffusion barrier, described LED lamp bar is arranged in the gap between blackboard framework and light guide plate, and described black backboard is placed on the backside surface of light guide plate.

As preferably, described diffusion barrier is double membrane structure, and the surface that the lower layer of film contacts with light guide plate is shiny surface.

As preferably, blackboard eraser is the disk that ferrimagnet is made.

The beneficial effects of the utility model: when the utility model uses, write without the need to chalk without the need to ink, without the need to Special writing pen, just can write with the pen-like tool that finger or any solid material are made, no material consumption, without any air pollution, achieve clean dais target, blackboard writing and figure self luminescence, svelteness, contrast is better than traditional blackboard, blank and projection electronic whiteboard, after solving lyceum, row does not see the problem of blackboard (blank) small character, different from other electronic blackboard, without any flicker when the utility model uses, eye fatigue free does not hinder eye, and blackboard area is large, structure is simple, cost is low, ways of writing is identical with the writing on the blackboard mode of traditional blackboard, easily universal, traditional blackboard can be replaced.

Feature of the present utility model and advantage will be described in detail by reference to the accompanying drawings by embodiment.

Accompanying drawing explanation

Fig. 1 is Facad structure schematic diagram of the present utility model.

Fig. 2 is structure schematic diagram of the present utility model.

Fig. 3 is fundamental diagram of the present utility model.

In figure: 1-blackboard framework, 2-diffusion barrier, 3-light guide plate, 4-blackboard eraser, 5-LED lamp bar, 6-black backboard.

Detailed description of the invention

Consult Fig. 1 and Fig. 2, the utility model comprises blackboard framework 1, diffusion barrier 2, light guide plate 3, blackboard eraser 4, LED lamp bar 5 and black backboard 6, described light guide plate 3 is fixed in blackboard framework 1, described diffusion barrier 2 is placed in the front face surface of light guide plate 3, described blackboard eraser 4 is placed between light guide plate 3 and diffusion barrier 2, described LED lamp bar 5 is arranged in the gap between blackboard framework 1 and light guide plate 3, described black backboard 6 is placed on the backside surface of light guide plate 3, described diffusion barrier 2 is double membrane structure, the surface that the lower layer of film contacts with light guide plate 3 is shiny surface, the disk that described blackboard eraser 4 is made for ferrimagnet.

Principle of the present utility model: consult Fig. 3, the utility model in use, the pen-like tool that available finger or any solid material are made writes, the light beam utilizing LED lamp bar 5 to produce runs into diffusion barrier 2 in light guide plate 3 in multiple total reflection process can derive principle of luminosity by light, light guide plate 3 and diffusion barrier 2 are separated by air layer at ordinary times, not luminous on diffusion barrier 2, blackboard looks like black, when diffusion barrier 2 pointed or pen-like tool pressure and cave in time, depressed area is close to light guide plate 3 surface due to smooth surface, can be luminous, form writing, during erasing out handwriting, blackboard eraser 4 is attracted to move by the hand-held block permanent magnet in outside, diffusion barrier 2 recess is separated with light guide plate 3, blackboard writing can be eliminated, diffusion barrier 2 adopts double-decker, writing on the blackboard can be made more smooth, writing visible angle is larger, be conducive to lyceum to use.

Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, anyly all belongs to protection domain of the present utility model to the scheme after the utility model simple transformation.

Claims

1. dustless Water-free environment-friendlyurinal Luminous blackboard, comprise blackboard framework, diffusion barrier, light guide plate, blackboard eraser, LED lamp bar and black backboard, described light guide plate is fixed in blackboard framework, described diffusion barrier is placed in the front face surface of light guide plate, described blackboard eraser is placed between light guide plate and diffusion barrier, described LED lamp bar is arranged in the gap between blackboard framework and light guide plate, and described black backboard is placed on the backside surface of light guide plate.

2. dustless Water-free environment-friendlyurinal Luminous blackboard according to claim 1, is characterized in that, described diffusion barrier is double membrane structure, and the surface that the lower layer of film contacts with light guide plate is shiny surface.

3. dustless Water-free environment-friendlyurinal Luminous blackboard according to claim 1, is characterized in that, blackboard eraser is the disk that ferrimagnet is made.