CN201400019Y - Environmental friendly magnetic blackboard - Google Patents
Environmental friendly magnetic blackboard Download PDFInfo
- Publication number
- CN201400019Y CN201400019Y CN2009200795357U CN200920079535U CN201400019Y CN 201400019 Y CN201400019 Y CN 201400019Y CN 2009200795357 U CN2009200795357 U CN 2009200795357U CN 200920079535 U CN200920079535 U CN 200920079535U CN 201400019 Y CN201400019 Y CN 201400019Y
- Authority
- CN
- China
- Prior art keywords
- blackboard
- magnetic
- iron powder
- permanent magnet
- magnet blocks
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a teaching aid. A generally known blackboard does not have environment-friendly function since chalk dust blows around with the wind when the blackboard is cleaned, whichnot only pollutes environment but also contributes nothing to health. The utility model provides an environmental friendly magnetic blackboard, which is characterized in that an electromagnetic boardis arranged at the back of a translucent plastic blackboard; permanent magnet blocks are arranged on the two sides of the blackboard respectively; plenty of iron powder is arranged on the magnet blocks; and an available magnetic pen with the magnetic property larger than that of the permanent magnet blocks is arranged on the blackboard surface. When used by a teacher, the magnetic pen can be removed to be in contact with the blackboard surface, iron powder handwriting is firmly sucked for showing, and the writing can be completed; when the blackboard is cleaned, the power supply is cut off, and the electromagnetic board loses magnetic property, so that the iron powder is attracted to the permanent magnet. The blackboard has the advantages of simple structure, convenient use, and good environment-friendly effect.
Description
Technical field
The utility model relates to a kind of teaching aid.
Background technology
At present, known blackboard does not all have environmental protection function, and when erasing the board, chalk dust will fly around with the wind, has not only polluted environment, also is unfavorable for health.
Summary of the invention
In order to overcome above-mentioned deficiency, the utility model provides a kind of magnetic force environment friendly blackboard, just can reach the purpose of no chalk dust.
The technical scheme in the invention for solving the technical problem is: the magnetic force environment friendly blackboard of being made up of translucent plastic sheet, magnetic board, permanent-magnet block and magnetic pen, it is characterized in that: one magnetic board is set in the behind of a translucent plastic blackboard, in its both sides one permanent-magnet block is set respectively again, some iron powders are set on the magnetic patch, the magnetic pen of the magnetic that can take greater than permanent-magnet block is set on blackboard surface again.In the time of teacher's writing on the blackboard, only need take off magnetic pen contact blackboard surface, the iron powder writing is firmly held to be manifested, and just can finish writing on the blackboard; When erasing the board, to cut off the electricity supply, magnetic board has just lost magnetic, and iron powder is attracted on the permanent magnet again like this.
The beneficial effects of the utility model are: simple in structure, easy to use, environment protecting is good.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is the utility model panorama schematic diagram.
1. translucent plastic blackboards among the figure, 2. magnetic board, 3. permanent-magnet block, 4. magnetic pen.
The specific embodiment
In Fig. 1, in the behind of a translucent plastic blackboard (1) magnetic board (2) is set, one permanent-magnet block (3) respectively is set in its both sides again, some iron powders are set on the magnetic patch, the magnetic pen (4) of the magnetic that can take greater than permanent-magnet block is set on blackboard surface again.In the time of teacher's writing on the blackboard, only need take off magnetic pen contact blackboard surface, the iron powder writing is firmly held to be manifested, and just can finish writing on the blackboard; When erasing the board, to cut off the electricity supply, magnetic board has just lost magnetic, and iron powder is attracted on the permanent magnet again like this.
Claims (1)
1, a kind of magnetic force environment friendly blackboard, form by translucent plastic sheet, magnetic board, permanent-magnet block and magnetic pen, it is characterized in that: a magnetic board (2) is set in the behind of a translucent plastic blackboard (1), one permanent-magnet block (3) respectively is set in its both sides again, some iron powders are set on the magnetic patch, the magnetic pen (4) of the magnetic that can take greater than permanent-magnet block is set on blackboard surface again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200795357U CN201400019Y (en) | 2009-03-13 | 2009-03-13 | Environmental friendly magnetic blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200795357U CN201400019Y (en) | 2009-03-13 | 2009-03-13 | Environmental friendly magnetic blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201400019Y true CN201400019Y (en) | 2010-02-10 |
Family
ID=41659815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200795357U Expired - Fee Related CN201400019Y (en) | 2009-03-13 | 2009-03-13 | Environmental friendly magnetic blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201400019Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273771A (en) * | 2013-06-13 | 2013-09-04 | 李家海 | Environmental protection and energy saving magnetic blackboard |
-
2009
- 2009-03-13 CN CN2009200795357U patent/CN201400019Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273771A (en) * | 2013-06-13 | 2013-09-04 | 李家海 | Environmental protection and energy saving magnetic blackboard |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201400019Y (en) | Environmental friendly magnetic blackboard | |
| CN202345208U (en) | Electric blackboard eraser | |
| CN201437306U (en) | Electrostatic dustproof device | |
| CN202702956U (en) | Pen with anti-lost pen cap | |
| CN202923215U (en) | Dust-free magnetic blackboard | |
| CN201872490U (en) | Dustproof blackboard eraser | |
| CN201124701Y (en) | Magnetic blackboard eraser | |
| CN201881766U (en) | Multifunctional magnetic blackboard eraser | |
| CN202498915U (en) | Electrostatic blackboard eraser | |
| CN202703062U (en) | Pen container with magnetic stationery rack | |
| CN202439459U (en) | Blackboard eraser | |
| CN202517971U (en) | Chalkboard eraser | |
| CN201573448U (en) | dust-free chalk eraser | |
| CN202716625U (en) | Convenient blackboard | |
| CN202498888U (en) | Dustproof electrostatic blackboard | |
| CN202345201U (en) | Blackboard eraser | |
| CN202389059U (en) | Novel rubber eraser | |
| CN103847376A (en) | Magnetic blackboard eraser capable of easily cleaning dust | |
| CN201092196Y (en) | Dust-free magnetic blackboard | |
| CN201287558Y (en) | Chalk dust absorbing blackboard eraser | |
| CN102963186A (en) | Dustproof blackboard eraser | |
| CN202428920U (en) | Dustless blackboard | |
| CN201863591U (en) | Blackboard eraser capable of collecting chalk dust | |
| CN201849207U (en) | Blackboard eraser | |
| CN201646118U (en) | Combined stationery |
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: 20100210 Termination date: 20110313 |