CN107813634A - A kind of Wiping-free blackboard - Google Patents
A kind of Wiping-free blackboard Download PDFInfo
- Publication number
- CN107813634A CN107813634A CN201711133989.3A CN201711133989A CN107813634A CN 107813634 A CN107813634 A CN 107813634A CN 201711133989 A CN201711133989 A CN 201711133989A CN 107813634 A CN107813634 A CN 107813634A
- Authority
- CN
- China
- Prior art keywords
- cavity
- wiping
- blackboard
- magnetic
- blackboard body
- 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- Withdrawn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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
- B43L1/045—Blackboards with magnetic action
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
- B43L1/08—Blackboards flexible
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a kind of Wiping-free blackboard, including：Transparent blackboard body（1）, the blackboard body（1）Interior regularly arranged have some oblong cavities（2）, the cavity（2）Inside it is provided with rotatable oval magnetic pole（3）, the cavity（2）Front and rear surfaces be provided with opening（4）, the adjacent cavity（2）Between be provided with spacing, the blackboard body（1）Preceding surface be provided with magnetic sheet（5）, the magnetic sheet（5）It is movably set in spool（6）It is interior, the blackboard body（1）Lower section be provided with pencil box, be provided with magnetic pen in the pencil box（7）.The present invention utilizes magnetic pole principle, and easily writing and erasing, no dust are safe and healthy.
Description
Technical field
The present invention relates to a kind of Wiping-free blackboard, belongs to education equipment technical field.
Background technology
Prevalence and application with Modern educational methodology, instructors seem increasingly to dote in multimedia teaching, and ignore
The irreplaceable effect of black board teaching on Traditional Classroom.In modern education, black board teaching this Traditional teaching means are still
So play its indispensable effect.Such as compulsory education, teacher asks the upper blackboard of student to do topic often needs large area
Blackboard；The old professor for departing from electronic age is considered further that, situations such as poorer small towns, mountain area or projecting apparatus repair, blackboard
Presence be still necessary.Existing blackboard is to use chalk-writing, and writing is laborious, and erasing the board also wastes time and energy, and powder
There is also harm for the health of teacher and student for dirt.
The content of the invention
Present invention solves the technical problem that being to provide one kind utilizes magnetic pole principle, and easily writing and erasing, no dust, peace
The Wiping-free blackboard of full health.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of Wiping-free blackboard, including：Transparent blackboard body, it is regularly arranged in the blackboard body to have some oblong cavities,
Rotatable oval magnetic pole is provided with the cavity, the front and rear surfaces of the cavity are provided with opening, adjacent institute
To state and be provided with spacing between cavity, the preceding surface of the blackboard body is provided with magnetic sheet, and the magnetic sheet is movably set in spool,
Pencil box is provided with below the blackboard body, magnetic pen is provided with the pencil box.
The spacing is the distance for avoiding occurring between the adjacent magnetic pole magnetic disturbance.
The front and rear surfaces of blackboard body described in the long axis connection of the cavity, the short axle of the cavity and the length of the magnetic pole
Axle is interference fitted, and the spacing is the 1/3 ~ 1/2 of the minor axis length of the cavity.
The spool includes being arranged at the rotating bar inside the spool, the top of the magnetic sheet and the rotating bar phase
Even, the rotating bar is connected with drive device.
The drive device includes motor.
The short axle of the cavity is the 1/1000 ~ 1/100 of the blackboard body length.
The material of the blackboard body is magnetic-permeable material.
A kind of Wiping-free blackboard provided by the invention, oval magnetic pole are freely rotatable, and N, S pole can exchange rapidly, ellipse
N, S pole of magnetic pole are respectively white and black, when magnetic sheet is located at before blackboard body, are influenceed by the magnetic force of magnetic sheet, ellipse
Towards one side, blackboard body is black or white, then packs up magnetic sheet for the same pole of magnetic pole, when needing to use magnetic pen clipboard
During book, the writing end of magnetic pen and the writing surface magnetic pole of blackboard body are on the contrary, the local ellipse that can write magnetic pen
Shape magnetic polarity reversal, the place for writing magnetic pen is different from the local color do not write, that is, shows written contents, when
When needing to erase the board, magnetic sheet only need to be put down again, you can blackboard is restored, therefore the present invention easily writing and erasing, no dust, peace
Full health.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of cavity in the present invention.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As shown in Fig. 1 ~ Fig. 2, a kind of Wiping-free blackboard, including：Transparent blackboard body 1, rule row in the blackboard body 1
Show some oblong cavities 2, be provided with rotatable oval magnetic pole 3 in the cavity 2, the cavity 2 it is front and rear
Surface is provided with opening 4, and spacing is provided between the adjacent cavity 2, and the preceding surface of the blackboard body 1 is provided with magnetic sheet
5, the magnetic sheet 5 is movably set in spool 6, and the lower section of the blackboard body 1 is provided with pencil box, and magnetic is provided with the pencil box
Property pen 7.
The spacing is the distance for avoiding occurring between the adjacent magnetic pole 3 magnetic disturbance.
The front and rear surfaces of blackboard body 1 described in the long axis connection of the cavity 2, the short axle of the cavity 2 and the magnetic pole 3
Major axis interference fit, the spacing for the cavity 2 minor axis length 1/3 ~ 1/2.
The spool 6 includes being arranged at the rotating bar inside the spool 6, top and the rotating bar of the magnetic sheet 5
It is connected, the rotating bar is connected with drive device.
The drive device includes motor.
The short axle of the cavity 2 is the 1/1000 ~ 1/100 of the length of blackboard body 1.
The material of the blackboard body 1 is magnetic-permeable material.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (7)
- A kind of 1. Wiping-free blackboard, it is characterised in that：Including：Transparent blackboard body（1）, the blackboard body（1）Interior rule row Show some oblong cavities（2）, the cavity（2）Inside it is provided with rotatable oval magnetic pole（3）, the cavity （2）Front and rear surfaces be provided with opening（4）, the adjacent cavity（2）Between be provided with spacing, the blackboard body（1）'s Preceding surface is provided with magnetic sheet（5）, the magnetic sheet（5）It is movably set in spool（6）It is interior, the blackboard body（1）Lower section set There is pencil box, magnetic pen is provided with the pencil box（7）.
- A kind of 2. Wiping-free blackboard according to claim 1, it is characterised in that：The spacing is to avoid the adjacent magnetic pole （3）Between occur magnetic disturbance distance.
- A kind of 3. Wiping-free blackboard according to claim 2, it is characterised in that：The cavity（2）Long axis connection described in it is black Plate body（1）Front and rear surfaces, the cavity（2）Short axle and the magnetic pole（3）Major axis interference fit, the spacing is institute State cavity（2）Minor axis length 1/3 ~ 1/2.
- A kind of 4. Wiping-free blackboard according to claim 1, it is characterised in that：The spool（6）Including being arranged at the volume Axle（6）Internal rotating bar, the magnetic sheet（5）Top be connected with the rotating bar, the rotating bar is connected with drive device.
- A kind of 5. Wiping-free blackboard according to claim 4, it is characterised in that：The drive device includes motor.
- A kind of 6. Wiping-free blackboard according to claim 3, it is characterised in that：The cavity（2）Short axle be the blackboard Body（1）The 1/1000 ~ 1/100 of length.
- A kind of 7. Wiping-free blackboard according to claim 1, it is characterised in that：The blackboard body（1）Material be saturating magnetic Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711133989.3A CN107813634A (en) | 2017-11-16 | 2017-11-16 | A kind of Wiping-free blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711133989.3A CN107813634A (en) | 2017-11-16 | 2017-11-16 | A kind of Wiping-free blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107813634A true CN107813634A (en) | 2018-03-20 |
Family
ID=61609217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711133989.3A Withdrawn CN107813634A (en) | 2017-11-16 | 2017-11-16 | A kind of Wiping-free blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107813634A (en) |
-
2017
- 2017-11-16 CN CN201711133989.3A patent/CN107813634A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180320 |
|
| WW01 | Invention patent application withdrawn after publication |