CN206678638U - Magnetic blackboard - Google Patents
Magnetic blackboard Download PDFInfo
- Publication number
- CN206678638U CN206678638U CN201720160177.7U CN201720160177U CN206678638U CN 206678638 U CN206678638 U CN 206678638U CN 201720160177 U CN201720160177 U CN 201720160177U CN 206678638 U CN206678638 U CN 206678638U
- Authority
- CN
- China
- Prior art keywords
- plate body
- iron powder
- writing
- magnet coil
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of magnetic blackboard, it includes plate body and writing pencil, the peripheral position of the plate body is wound with magnet coil, the region that the magnet coil is enclosed forms writing region, the magnet coil is connected with electric supply installation, the writing pencil includes hollow penholder and the piston body of rod, and one end of the hollow penholder is gradually reduced to form nib, and the nib exports provided with iron powder；The utility model is ingenious in design, reasonable, and after switching on power, uniform magnetic field is produced in the interior zone that magnet coil is enclosed, and the writing region of plate body is just just in uniform magnetic field；At this moment, hand-held writing pencil is write, iron powder is taken out of by nib, iron powder is adsorbed under magnetic fields on plate body surface, so as to reach the purpose of writing, using simple, conveniently, the dust pollution as caused by chalk is effectively prevented from classroom, ensures clean environment and the health of academics and students, overall structure is simple in addition, it is easily achieved, beneficial to wide popularization and application.
Description
Technical field
It the utility model is related to blackboard field, and in particular to a kind of magnetic blackboard.
Background technology
The blackboard used in conventional teaching and matched chalk often produce in classroom in the past few decades
Larger dust pollution, and academics and students are in this environment for a long time in teaching learns, can be to lung, respiratory tract, eyes
Damaged with positions such as skins, induce a variety of diseases, such as pneumonia, bronchitis, pneumoconiosis.In addition, dust can also be right
Some precision instruments in classroom have damaged, and wipe unclean.
In the past, also there is dust-free chalk, unlike common chalk, grease type or polyalcohols are added in common chalk
Material makees adhesive, adds the filler of larger specific gravity.But it reduces the effect of dust pollution not in actual application
Substantially.The use of blank is nearly free from dust, but its supporting white board marker consumption is fast and costly.Also dust absorption blackboard eraser,
Use also without convenient as explanation.
Therefore, the dust pollution as caused by chalk in classroom, and electricity easy to use can be effectively prevented from by developing one kind
Magnetic blackboard is when generation is required.
Utility model content
For above-mentioned deficiency, the purpose of this utility model is, there is provided a kind of smart structural design, rationally, can be effectively
Avoid the dust pollution as caused by chalk in classroom, and magnetic blackboard easy to use.
To achieve the above object, technical scheme provided by the utility model is：
A kind of magnetic blackboard, it includes plate body and writing pencil, and the peripheral position of the plate body is wound with magnet coil, the electromagnetism
The region that coil is enclosed forms writing region, and the magnet coil is connected with electric supply installation, and the writing pencil includes hollow penholder
And the piston body of rod, one end of the hollow penholder are gradually reduced to form nib, the nib provided with iron powder export, the hollow penholder it is another
Mouth is put in one end provided with iron powder, and one end that the piston body of rod is provided with piston element puts mouth through the iron powder and stretches into the hollow penholder
It is interior, tabletting is provided with by elasticity part on the piston element.
As a kind of improvement of the present utility model, the elasticity part is spring, and three springs are symmetricly set in the center of circle
Between piston element and tabletting.
As a kind of improvement of the present utility model, the front root edge of the plate body, which is set, connects iron powder groove.
As a kind of improvement of the present utility model, the side wall of the plate body is provided with receiver.
As a kind of improvement of the present utility model, the plate body is transparent or semitransparent plate body, and the back side of the plate body is set
There is illuminating module.
The beneficial effects of the utility model are：The utility model is ingenious in design, reasonable, after switching on power, in magnet coil
The interior zone enclosed produces uniform magnetic field, and the writing region of plate body is just just in uniform magnetic field；At this moment, hold hand-written
Pen is write, and is taken out of iron powder by nib, iron powder is adsorbed under magnetic fields on plate body surface, so as to reach the mesh of writing
's；Writing can be scraped connecing in iron powder groove on one side or below plate body with scraper plate in clerical error, need whole
During erasing characters can deenergization, iron powder is fallen into groove, and iron powder can be again loaded into writing pencil and reuse, and plate body can be with
It is transparent or semitransparent plate body, illuminating module, such as fluorescent tube or LED is provided with its behind, can be in the situation of insufficient light
Lower opening, brings convenience to use.Supporting writing pencil can avoid iron powder therein due to Action of Gravity Field with the piston body of rod
And can not write, while the elastic part also between piston element and tabletting, the elastic force to iron powder can be provided, it is ensured that
Handwriting is clear.The side wall of plate body has receiver pen and blackboard eraser can be put into receiver, using simple, conveniently, effectively keeps away
Exempt from the dust pollution as caused by chalk in classroom, ensure clean environment and the health of academics and students, in addition overall knot
Structure is simple, it is easy to accomplish, beneficial to wide popularization and application.
Below in conjunction with the accompanying drawings with embodiment, the utility model is further illustrated.
Brief description of the drawings
Fig. 1 is positive structure diagram of the present utility model.
Fig. 2 is side structure schematic view of the present utility model.
Fig. 3 is the structural representation of writing pencil in the utility model.
Embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of magnetic blackboard of the present embodiment offer, it includes plate body 1 and writing pencil 2, described
The peripheral position of plate body 1 is wound with magnet coil 3, and region that the magnet coil 3 is enclosed forms writing region, the magnet coil 3 with
Electric supply installation 4 is connected, and the writing pencil 2 includes hollow penholder 21 and the piston body of rod 22, and one end of the hollow penholder 21 is gradual
Reduce and form nib 23, the nib 23 is provided with iron powder outlet 24, and the other end of the hollow penholder 21 puts mouth provided with iron powder, the piston
One end that the body of rod 22 is provided with piston element is put mouth through the iron powder and stretched into the hollow penholder 21, passes through bullet on the piston element
Power part 25 is provided with tabletting 26.The elastic force to iron powder can be provided by tabletting 26, it is ensured that handwriting is clear.
In the present embodiment, the elasticity part 25 is spring, and three springs are symmetricly set on piston element and pressure in the center of circle
Between piece 26.In other embodiments, the elasticity part 25 can also be elastic plastic post.
Preferably, the front root edge in the plate body 1 sets and connects iron powder groove 5, recycling iron powder can be used for.In the plate body
1 side wall is provided with receiver 6, pen and blackboard eraser can be put into receiver 6, using simple, conveniently.
In addition, plate body 1 can also be transparent or semitransparent plate body, illuminating module 7 is provided with its back side, such as fluorescent tube or
LED etc., it can open in the case of insufficient light, be brought convenience to use.
In use, after switching on power, uniform magnetic field is produced in the interior zone that magnet coil 3 is enclosed, and the writing of plate body 1
Region is just just in uniform magnetic field；At this moment, hold writing pencil 2 to be write, taken out of iron powder by nib 23, iron powder exists
Absorption is on the surface of plate body 1 under magnetic fields, so as to reach the purpose of writing；Writing can be scraped with scraper plate in clerical error
On one side or plate body 1 lower section is connect in iron powder groove 5, when needing whole erasing characters can deenergization, iron powder falls into groove
It is interior, and iron powder can be again loaded into writing pencil 2 and reuse, supporting writing pencil 2 can avoid wherein with the piston body of rod 22
Iron powder can not be write due to Action of Gravity Field, while the elastic part 25, Ke Yiti also between piston element and tabletting 26
For the elastic force for giving iron powder, it is ensured that handwriting is clear.The side wall of plate body 1 has receiver 6 pen and blackboard eraser can be put into storage
Box 6, using simple, conveniently, be effectively prevented from classroom the dust pollution as caused by chalk, ensure clean environment and teacher and
The health of student, overall structure is simple in addition, it is easy to accomplish, beneficial to wide popularization and application.
The announcement and teaching of book according to the above description, the utility model those skilled in the art can also be to above-mentioned realities
The mode of applying is changed and changed.Therefore, the utility model is not limited to above-mentioned embodiment, every this area skill
It is new that art personnel any conspicuously improved, replacement or modification made on the basis of the utility model belong to this practicality
The protection domain of type.In addition, although used some specific terms in this specification, but these terms are intended merely to conveniently say
It is bright, any restrictions are not formed to the utility model, using other articles for writing obtained from same or similar structure,
In scope of protection of the utility model.
Claims (5)
1. a kind of magnetic blackboard, it is characterised in that it includes plate body and writing pencil, and the peripheral position of the plate body is wound with electromagnetic wire
Circle, the region that the magnet coil is enclosed form writing region, and the magnet coil is connected with electric supply installation, and the writing pencil includes
Hollow penholder and the piston body of rod, one end of the hollow penholder are gradually reduced to form nib, and the nib exports provided with iron powder, and this is hollow
The other end of penholder puts mouth provided with iron powder, and one end that the piston body of rod is provided with piston element puts mouth through the iron powder and stretches into the sky
In heart penholder, tabletting is provided with by elasticity part on the piston element.
2. magnetic blackboard according to claim 1, it is characterised in that：The elasticity part is spring, and three springs are in circle
The heart is symmetricly set between piston element and tabletting.
3. magnetic blackboard according to claim 1, it is characterised in that：The front root edge of the plate body, which is set, connects iron powder groove.
4. magnetic blackboard according to claim 1, it is characterised in that：The side wall of the plate body is provided with receiver.
5. according to the magnetic blackboard described in any one in claim 1-4, it is characterised in that：The plate body is transparent or semi-transparent
Bright plate body, the back side of the plate body are provided with illuminating module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720160177.7U CN206678638U (en) | 2017-02-22 | 2017-02-22 | Magnetic blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720160177.7U CN206678638U (en) | 2017-02-22 | 2017-02-22 | Magnetic blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206678638U true CN206678638U (en) | 2017-11-28 |
Family
ID=60394847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720160177.7U Expired - Fee Related CN206678638U (en) | 2017-02-22 | 2017-02-22 | Magnetic blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206678638U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114435007A (en) * | 2022-03-23 | 2022-05-06 | 吴艳红 | Intelligent computer technology display device |
-
2017
- 2017-02-22 CN CN201720160177.7U patent/CN206678638U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114435007A (en) * | 2022-03-23 | 2022-05-06 | 吴艳红 | Intelligent computer technology display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171128 Termination date: 20200222 |