CN87207528U - Magnetic writing apparatus - Google Patents
Magnetic writing apparatus Download PDFInfo
- Publication number
- CN87207528U CN87207528U CN 87207528 CN87207528U CN87207528U CN 87207528 U CN87207528 U CN 87207528U CN 87207528 CN87207528 CN 87207528 CN 87207528 U CN87207528 U CN 87207528U CN 87207528 U CN87207528 U CN 87207528U
- Authority
- CN
- China
- Prior art keywords
- magnetic
- board
- writing apparatus
- bar magnet
- nib
- 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.)
- Withdrawn
Links
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model belongs to a teaching article class. The present teaching blackboards, board wipers and chalks have severe dust pollution. The magnetic writing apparatus of the utility model makes use of the principle that the same poles of permanent magnets are repelled with each other and the different poles of the permanent magnets are attracted with each other to make a magnetic board, a magnetic pen and a magnetic wiper which can solve the problem of the pollution and also simultaneously save the expenses of the chalks. The magnetic board, the magnetic pen and the magnetic wiper have convenient and reliable use.
Description
Belong to the realia class.
Existing teaching blackboard, blackboard eraser, chalk.Be the essential product of teaching, impart knowledge to students that the pollution of dust is very serious, teacher, student's health is all had certain harm with these articles for use.The consumption of chalk also is very big in addition.
The utility model utilizes the homopolar-repulsion of permanent magnet, the principle that heteropole is inhaled mutually, and the magnetic sheet of making, magnetic are wiped, magnetic pen can solve above-mentioned deficiency.
See that Fig. 1, magnetic sheet are made of header board 1, liner plate 2, bar magnet 3, back plate 4, framework 5.
Header board is made of material transparent, uniform a lot of through holes on the middle liner plate, the little bar magnet of Kong Zhongyou.Bar magnet slides before and after Kong Zhongke, and the bar magnet front end face is painted with white, Ying luminescent material, in the middle of back plate and header board are clamped in liner plate by framework, makes it to form the magnetic sheet of an integral body.
See Fig. 2, magnetic pen is made of nib 1, convergence set 2, penholder 3.Nib is made of bar magnet, the magnetic pole of written outer end and magnetic sheet header board right magnetic pole opposite, nib is touched on the magnetic sheet header board, the bar magnet in the liner plate can be adsorbed onto on the front face, convergence set is made of flexible material (as rubber, plastics).Nib and penholder are linked together, and penholder also can be made afterbody the teacher's pointer of rod-pulling type.
Seeing that Fig. 3, magnetic wipe is made of wiping board 1, bar magnet 2, convergence set 3, and convergence set is made of flexible material, and it links into an integrated entity wiping board and bar magnet, also constitute on the inclined-plane of the end that magnetic is wiped by bar magnet, the magnetic pole that magnetic is wiped the outside and magnetic sheet header board right magnetic pole identical.Magnetic is wiped when attaching the magnetic sheet front face, under the repulsion effect of same pole, the bar magnet in the liner plate hole is postponed side, and writing is disappeared.
Claims (3)
1, the magnetic force teaching writing apparatus that is made of plate face framework is characterized in that: the plate face is the magnetic sheet that is made of header board, liner plate, bar magnet, back plate, framework, and header board is transparent, and uniform a lot of through holes have bar magnet on the liner plate in the hole.
2, the magnetic force teaching writing apparatus that is made of penholder, nib is characterized in that: pen is a magnetic pen.
A, penholder are connected with the convergence set that nib is made by flexible material
B, nib are bar magnets.
C, penholder end have the teacher's pointer of rod-pulling type.
3, the magnetic force teaching writing apparatus that constitutes by wiping board, rub body, it is characterized in that: wiping board is that magnetic is wiped.
A, wiping board are connected with the convergence set that rub body is made by flexible material.
B, rub body are bar magnets.
It is the inclined-plane that c, magnetic are wiped an end, bar magnet is also arranged on its inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87207528 CN87207528U (en) | 1987-04-20 | 1987-04-20 | Magnetic writing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87207528 CN87207528U (en) | 1987-04-20 | 1987-04-20 | Magnetic writing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87207528U true CN87207528U (en) | 1988-02-03 |
Family
ID=4822956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87207528 Withdrawn CN87207528U (en) | 1987-04-20 | 1987-04-20 | Magnetic writing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87207528U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001076888A1 (en) * | 1999-09-10 | 2001-10-18 | Tseng Shao Chien | A children drawing board |
| CN107310301A (en) * | 2017-07-19 | 2017-11-03 | 丁浩洋 | Magnetic force adsorption type writing apparatus |
-
1987
- 1987-04-20 CN CN 87207528 patent/CN87207528U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001076888A1 (en) * | 1999-09-10 | 2001-10-18 | Tseng Shao Chien | A children drawing board |
| CN107310301A (en) * | 2017-07-19 | 2017-11-03 | 丁浩洋 | Magnetic force adsorption type writing apparatus |
| CN107310301B (en) * | 2017-07-19 | 2018-12-18 | 丁浩洋 | Magnetic force adsorption type writing apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |