CN201192957Y - Environment friendly digital blackboard - Google Patents
Environment friendly digital blackboard Download PDFInfo
- Publication number
- CN201192957Y CN201192957Y CNU2008200313523U CN200820031352U CN201192957Y CN 201192957 Y CN201192957 Y CN 201192957Y CN U2008200313523 U CNU2008200313523 U CN U2008200313523U CN 200820031352 U CN200820031352 U CN 200820031352U CN 201192957 Y CN201192957 Y CN 201192957Y
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- magnetic
- blackboard
- environmentally
- friendly
- writing
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Abstract
The utility model relates to an environment-friendly digital blackboard. At present, the conventional chalks and blackboards are used in universities, high schools and primary schools in China, which can produce chalk dust that is harmful to the health of teachers and students. Although the electronic teaching tools are present, the electronic teaching tools are difficulty to be popularized temporarily due to the high cost in acquisition, operation and maintenance and the inconvenient operation. According to the bi-stable characteristics of the attraction between two poles of a magnet and a ferromagnetic substance, two-color magnetic columns forming strokes can reverse by 180 DEG C as the digital code '0 and 1' under the action of magnetic attraction and repulsion between a magnetic pen and the magnetic columns, so that clear characters and patterns with large color difference can be displayed on the backboard. Additionally, the writing and the erasing are very easy and convenient. The blackboard has the advantages of (1) no dust and magnetic field pollution, and beneficial to the improvement of the teaching environment; (2) no need for electricity, no influence by dampness, and convenient writing and erasing; and (3) low cost, long-term use of the digital blackboard and a plastic magnetic pen without maintenance, saved teaching cost.
Description
Technical field
The utility model relates to a kind of blackboard for education.
Background technology
Traditional educational aid be unable to do without blackboard and chalk.The environmental pollution that chalk dust causes can not be ignored the harm of teachers and students' health, and as air humidity big the time, the blackboard globule that can condense causes the chalk dysgraphia, and the handwriting is blurred, wipes the unclear situation of wiping.
The digital turnover technology of environmentally-friendly digital blackboard innovation and application rare earth permanent magnet composite material and magnetic action lower magnet, the application in teaching writing and passive digital screen board demonstration.Magnetic pole is under the active force of " same sex is repelled each other, there is a natural attraction between the sexes ", and the magnetic post is done " 0 " and the digital upset of the bistable state of " 1 ".Because N, the S utmost point of magnetic post all have equal attraction to the very little iron bottom plate of remanent magnetism, the magnetic post will remain on the stable state on the base plate.Magnetic pen with the mutual suction of magnetic pole, scold active force, drive double-colored magnetic post and do 180 degree upsets, the magnetic post just present with background color different write color.
Visitor in the invention
The utility model is used two principles that the magnetic pole same sex is repelled each other, there is a natural attraction between the sexes, make double-colored magnetic post (element of forming stroke) under the magnetic pole of magnetic pen drives, make double-colored magnetic post do digital " 0 " and overturn and the color demonstration, reach the purpose that substitutes traditional chalk writing and teaching with the bistable state of " 1 ".
The environmentally-friendly digital blackboard adopts the soft iron base plate that can both be attracted by two kinds of magnetic poles to form.That magnetic pole contact base plate of magnetic post all can produce strong absorption affinity.
High-strength transparence plastics grid works to support base plate and glass, again the magnetic post is positioned in each grid simultaneously, makes the magnetic post can only do garden weeks 180 degree rolling, can not laterally move.
The transparent ultra-thin plate of moulding plays the fixed-grid effect, makes the magnetic post can not be from the upper and lower of grid to offing normal.
Transparent 3---5mm plate glass is that screen shows protective layer, when rubber and plastic composite magnetic pen moves erasablely for a long time on the glass screen, can not reduce the transparency of glass, guarantee to write bright and lustrous, writing is clear.
Frame is the compound rigidity magnet crossbeam on the metal framework about blackboard, and its lower magnetic pole is identical with magnetic post black sole, is mainly used to remove blackboard view picture handwriting, passes the side-to-side movement of magnetic crossbeam and can empty all writings of blackboard.
Soft rubber and plastic composite magnetic lettering pen has taper pencil (polarity is extremely opposite with magnetic post background color) and garden shape to wipe and changes head (polarity is extremely identical with magnetic post background color).Because the magnetic pen quality is pliable and tough, one can snag glass, and two can guarantee to land can not damage magnetic pen.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments.
It among the figure schematic diagram of the utility model structure.
The specific embodiment
Environmentally-friendly digital blackboard as shown in FIG., make smooth base plate (1) by the thick iron sheet of 1mm, metal framework (2) arranged in that blackboard is upper and lower, be used for that closed assembly, fixing clear plate glass (6), the thin transparent of forming blackboard are moulded plate (5), plastics grid (3), irony base plate (1) and by dress magnetic crossbeam (8).
Among the figure, groined type is the structure enlarged drawing of a grid in the circle of garden.Double-colored magnetic post (4) can only be done 180 degree rotations under magneticaction in plastics grid (3), can not move radially.
Among the figure, the tapering point of rubber and plastic magnetic pen (7) is used for writing, and garden shape end is used for wiping and changes the error correction person's handwriting.
Among the figure, the translation of magnetic crossbeam (8) can empty all person's handwritings on the blackboard.
Claims (5)
1. the digital blackboard of novel environment friendly has: irony base plate (1), and plastics grid (3), the ultra-thin plate (5) of moulding, magnetic post (4), transparent flat glass (6), and stack in turn neatly, use metal framework (2) fixing all around, form writing blackboard; The shaft-like magnetic pen of knob wedge shape (7) replaces tradition to write chalk; Strip composite magnetic crossbeam (8) replaces tradition to whitewash.
2. environmentally-friendly digital blackboard according to claim 1, it is characterized in that: use square tube type metal framework (2) around the blackboard, irony base plate (1) and every lattice are equipped with the plastics grid (3) of magnetic post (4), and the ultra-thin plate (5) of moulding, transparent flat glass (6) stack neat fixing in turn.
3. environmentally-friendly digital blackboard according to claim 1 is characterized in that: in each lattice of plastics grid (3), each crouches and to put a garden cylindricality radially half and half, double-colored, the heteropole magnetic post (4) of magnetic field intensity, pole orientation, cylinder solid colour.
4. environmentally-friendly digital blackboard according to claim 1 is characterized in that: the shaft-like magnetic pen of knob wedge shape (7) is by magnetic and rubber and plastic composite molding, and the polarization of magnetizing, and the superfine end of N is a writing end, and S utmost point butt end changes end for wiping.
5. environmentally-friendly digital blackboard according to claim 1 is characterized in that: the inside is the S utmost point, and the outside is the strip composite magnetic crossbeam (8) of the N utmost point, with the upper and lower frames interlocking of metal framework (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200313523U CN201192957Y (en) | 2008-01-22 | 2008-01-22 | Environment friendly digital blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200313523U CN201192957Y (en) | 2008-01-22 | 2008-01-22 | Environment friendly digital blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201192957Y true CN201192957Y (en) | 2009-02-11 |
Family
ID=40392501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200313523U Expired - Fee Related CN201192957Y (en) | 2008-01-22 | 2008-01-22 | Environment friendly digital blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201192957Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103660722A (en) * | 2013-12-24 | 2014-03-26 | 温州职业技术学院 | Magnetic display panel |
| CN104228418A (en) * | 2013-06-10 | 2014-12-24 | 镇江跃进机械厂有限公司 | Blackboard |
| CN104875528A (en) * | 2015-06-10 | 2015-09-02 | 苏州睿绮电子有限公司 | Environment-friendly blackboard |
-
2008
- 2008-01-22 CN CNU2008200313523U patent/CN201192957Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104228418A (en) * | 2013-06-10 | 2014-12-24 | 镇江跃进机械厂有限公司 | Blackboard |
| CN103660722A (en) * | 2013-12-24 | 2014-03-26 | 温州职业技术学院 | Magnetic display panel |
| CN103660722B (en) * | 2013-12-24 | 2016-03-23 | 温州职业技术学院 | Magnetic display board |
| CN104875528A (en) * | 2015-06-10 | 2015-09-02 | 苏州睿绮电子有限公司 | Environment-friendly blackboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090211 Termination date: 20100222 |