CN2220944Y - Electromagnetic blackboard - Google Patents
Electromagnetic blackboard Download PDFInfo
- Publication number
- CN2220944Y CN2220944Y CN 94243013 CN94243013U CN2220944Y CN 2220944 Y CN2220944 Y CN 2220944Y CN 94243013 CN94243013 CN 94243013 CN 94243013 U CN94243013 U CN 94243013U CN 2220944 Y CN2220944 Y CN 2220944Y
- Authority
- CN
- China
- Prior art keywords
- magnetic
- clipboard
- blackboard
- magnetic sheet
- sheet
- 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
- 239000000696 magnetic material Substances 0.000 claims abstract 2
- 229920003023 plastic Polymers 0.000 claims description 9
- 235000011837 pasties Nutrition 0.000 claims description 5
- 239000000049 pigment Substances 0.000 claims description 5
- 239000004519 grease Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005755 formation reaction Methods 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 230000004438 eyesight Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000004630 mental health Effects 0.000 abstract description 2
- 230000036541 health Effects 0.000 abstract 1
- 230000005389 magnetism Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- -1 timber Substances 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 208000030303 breathing problems Diseases 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 208000030533 eye disease Diseases 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 208000017520 skin disease Diseases 0.000 description 1
Images
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model provides an electromagnetism blackboard mainly has frame, clipboard, electronic magnetic eraser, bottom plate to constitute, uses with the magnetism pen is supporting, enables characters figure display on the clipboard, and the clipboard is sandwich structure, and magnetic material is equipped with to the inside, presses electronic magnetic eraser and can make characters, figure disappear, the utility model relates to a novel reasonable, create simple process, operation convenient to use, write laborsavingly, clean health, pollution-free, the color is soft, can protect teacher and student's eyesight, physical and mental health, extensively is applicable to big, middle and primary school's school in whole country, can replace traditional old-style blackboard, is a neotype teaching aid and propaganda apparatus.
Description
The utility model belongs to teaching, the propaganda teaching aid that a kind of large, medium and small school uses.
Big both at home and abroad at present, the blackboard for education that middle and primary schools generally use, it is wooden blackboard, Glass blackboard, cement blackboard etc., but all adopt chalk writing, the Main Ingredients and Appearance of chalk is a lime, because chalk is to do matter, when the neutralization of writing on the blackboard process erases the board, the chalk foam flies upward everywhere, polluted classroom environment, make Faculty and Students all breathe the air that chalk pollutes, it is reported, for many years aged teacher particularly is engaged in teaching, breathing problem is in various degree all arranged, illness in eye and skin disease etc., blackboard also is not easy to wipe clean in addition, during writing on the blackboard, makes the student look very unclear again, long-time eye muscle is tired easily, cause student eyesight undesired, have a strong impact on the healthy of Faculty and Students, people urgently wish to have a kind of magnetic blackboard without chalk writing to come out.
The purpose of this invention is to provide a kind of by magnetic pen and the matching used electromagnet blackboard of writing the word that electronicly to disappear of magnet board.
The utility model mainly contains face shield (1), framework (2), clipboard (3), electronic magnetic sheet and wipes (4), base plate (5), rear enclosed plate (6), switch (7), magnetic pen (8), connecting rod (9) magnetic liquid bath (10), the little wheel track of magnetic sheet (11), fixedly magnetic sheet steamboat (12), motor (13), magnetic sheet drag-line (14), attaching plug formations such as (15).Key is that blackboard framework (2) is the rectangular frame structure, be set with clipboard (3), the interlayer rectangle structure of clipboard in the back for sealing, magnetic grease, the pigment composition of pasty state is equipped with in the inside, electronic magnetic sheet is wiped and is installed on the base plate (5), be sleeved on clipboard (3) back, load onto rectangle rear enclosed plate (6) connecting rod (9) that can bent stretch is installed in framework (2) both sides, connect face shield (1) by connecting rod.Clipboard is that rectangle is a sandwich, is made up of two-layer, and one deck is by the transparent plastic sheet with little cell, and another layer is to be made of the transparent plastic flat board, and magnetic, the oil that pasty state is housed in magnetic liquid bath (10) (little cell) refers to, pigment composition.Rectangular base plate (5) is provided with 2 little wheel track of magnetic sheet (11), and motor (13), drag-line (14), electronic magnetic sheet are installed wipe and be elongate in shape, four fixedly magnetic sheet steamboats (12) are installed on it, can in the little wheel track of magnetic sheet (11), horizontally slip by control motor (13).Basic principle of the present utility model is to pass through Magnetic Induction, by the permanent magnetic stylus, magnetic powder in the clipboard is adsorbed on the clipboard inner surface, form literal and figure, press motor switch, motor is just drawing drag-line, drag-line hauls magnetic sheet and moves towards the process that other end magnetic sheet is walked about from blackboard one end, the magnetic that is adsorbed on the clipboard outer surface is inhaled again, on surface in the clipboard, thereby the font on the clipboard is disappeared.When people use magnetic blackboard, open face shield, pick up magnetic pen and just can on clipboard, any one position painting and calligraphy, writing on the blackboard finish, remove character and graphic as needs, can press demagnetization electric device switch, just can make the clipboard face clean automatically, can use from multiple as blank sheet of paper.
Advantage of the present utility model is; magnetic blackboard is mainly wiped by writing electronic magnetic sheet; base plate constitutes; with the supporting use of magnetic pen; character and graphic is presented on the clipboard; clipboard is a sandwich; in the pasty state magnetic powder material is housed; electronic magnetic sheet is wiped move left and right can make literal; figure disappears, and the utility model is rationally novel in design, and manufacturing process is simple; easy for operation; write laborsaving; clean hygiene does not have powder to pollute, and the blackboard color is soft; long-term use can be protected the eyesight of Faculty and Students; physical and mental health has been stopped chalk powder to Faculty and Students' body and mind infringement, and it is big to be widely used in the whole nation ten million; middle and primary schools; can substitute traditional old-fashioned blackboard, be a kind of novel teaching aid and propaganda apparatus.
Description of drawings:
Fig. 1, be the magnetic blackboard schematic appearance
Fig. 2, be the clipboard structural representation
Fig. 3, be that electronic magnetic sheet is wiped, base plate is the part schematic diagram in addition
Fig. 4, be magnetic blackboard critical piece exploded view,
Fig. 5, magnetic pen schematic diagram (1) face shield (2) framework, (3) clipboard, (4) electronic magnetic sheet wiping, (5) base plate, (6) rear enclosed plate, (7) switch, (8) magnetic pen, (9) connecting rod, (10) magnetic liquid bath, (11), the little wheel track of magnetic sheet, (12) are magnetic sheet steamboat, (13) motor, (14) magnetic sheet drag-line, (15) attaching plug, (16) Luo Ding, (17) spring fixedly
Embodiment:
The utility model is made material can select materials such as timber, plastics, transparent plastic, nylon material, metal, magnetic, grease, pigment for use.
Face shield (1) is that rectangle specification (2 * 1.0) M is connected with framework (2) by connecting rod (9), spring (17), framework (2) is rectangle specification (2 * 1.0) M, and the thick 3MM of clipboard (3) specification (1.95 * 1.0) M selects for use transparent plastic or nylon material to make.Clipboard is a sandwich, pasty state magnetic, grease, pigment composition, rectangle base plate (5) are housed in the interlayer are provided with 2 little wheel track of magnetic sheet (11), and 4 fixedly magnetic sheet steamboats (12) are installed, can in the little wheel track of magnetic sheet (11), horizontally slip by control motor (13).The rear enclosed plate selects for use plank or plastics to make (2 * 1.0) M, and the long 12MM of magnetic pen (8) two is a permanent magnet, and make for plastics the centre, and magnetic pen has an end to tilt upward, and is convenient to write smoothly.
Claims (3)
1, a kind of magnetic blackboard, wipe (4), base plate (5), magnetic pen formations such as (8) by face shield (1), framework (2) clipboard (3), electronic magnetic sheet, it is characterized in that framework (2) is the rectangular frame structure, be set with clipboard (3), the rectangle sandwich of clipboard for sealing in its back, magnetic material is equipped with in the inside, electronic magnetic sheet is wiped and is installed on the base plate (5), be sleeved on clipboard (3) back, refill rear enclosed plate (6), in framework (2) both sides the connecting rod (9) that can bent stretch is installed, connects face shield (1) by connecting rod.
2, magnetic blackboard according to claim 1, it is characterized in that clipboard is a rectangle sandwich, one deck is the transparent plastic sheet that has little cell, and another layer is the dull and stereotyped formation of transparent plastic, and magnetic, grease, pigment, the mixture of pasty state is housed in groove.
3, magnetic blackboard according to claim 1, it is characterized in that rectangle base plate (5) is provided with 2 little wheel track of magnetic sheet (11), it is elongate in shape that motor (13), drag-line (14), electronic magnetic sheet are wiped (4), four fixedly magnetic sheet steamboats (12) are installed on it, wipe (4) and can in the little wheel track of magnetic sheet (11), horizontally slip by control electro-motor (13), electronic magnetic sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94243013 CN2220944Y (en) | 1994-10-14 | 1994-10-14 | Electromagnetic blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94243013 CN2220944Y (en) | 1994-10-14 | 1994-10-14 | Electromagnetic blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2220944Y true CN2220944Y (en) | 1996-02-28 |
Family
ID=33849494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94243013 Expired - Fee Related CN2220944Y (en) | 1994-10-14 | 1994-10-14 | Electromagnetic blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2220944Y (en) |
-
1994
- 1994-10-14 CN CN 94243013 patent/CN2220944Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |