CN2538555Y - Automatic wiping environment protection blackboard using chalk - Google Patents
Automatic wiping environment protection blackboard using chalk Download PDFInfo
- Publication number
- CN2538555Y CN2538555Y CN 02210999 CN02210999U CN2538555Y CN 2538555 Y CN2538555 Y CN 2538555Y CN 02210999 CN02210999 CN 02210999 CN 02210999 U CN02210999 U CN 02210999U CN 2538555 Y CN2538555 Y CN 2538555Y
- Authority
- CN
- China
- Prior art keywords
- writing
- writing surface
- blackboard
- flat rubber
- rubber belting
- 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
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a teaching tool, in particular to a environment-friendly and self-cleaning chalk blackboard, which comprises a writing surface and an eraser. Wherein, the writing surface is a closed annular flat belt 1 and strained by two parallel belt shafts. These two belt shafts are driven by a drive unit to make the flat belt 1 rotate synchronously. A back surface of the flat belt writing surface is arranged with a hard smooth splint 3 closely contacting it. In addition, the eraser 6 is positioned in a scope beyond the writing surface of the flat belt 1 out of the belt shaft and generates mutual frictional moving with an external surface of the flat belt 1. The eraser 6 is sealed by a protective shield 7. The utility model totally renovates modes of traditional blackboards, ensures well feeling of writing with chalk, smooth writing, double writing area and storage capacity, realizes automatic cleaning and seals dust to protect environment.
Description
Technical field: the utility model relates to a kind of teaching aid, particularly the chalk blackboard.
Background technology: existing teaching in classroom is generally made with hard materials such as cement, plank, sheet iron or glass plates with the chalk blackboard, writes the back and cleans with brush or rag.In order to enlarge the writing surface area, generally adopt the two boards arranged superposed to move up and down, the method that is used alternatingly.But shortcomings such as the feel of skidding is poor, and the labour intensity that erases the board is big, and dust from flying can only be write by single face, and memory capacity is little are write in existing chalk blackboard existence.
Technology contents: in order to overcome the above-mentioned shortcoming and defect that existing chalk blackboard exists, the purpose of this utility model is to provide a kind of good hand touch of not only writing, can clean automatically, not having dust during wiping discharges, and writing surface can about (or up and down) reciprocation cycle move, thereby the environmental protection chalk of the wiping certainly blackboard that write area and memory capacity are enlarged at double.
Above-mentioned purpose of the present utility model is achieved in that accompanying drawings is as follows:
Form by writing surface and erasing apparatus from wiping the environmental protection chalk blackboard, writing surface is a closed ring flat rubber belting 1, it is by two parallel tape spool tensionings, tape spool is rotated by drive unit, flat rubber belting 1 rotates thereupon, be provided with the smooth supporting plate 3 of the hard of being close to it at the back side of flat rubber belting writing surface, erasing apparatus 6 is located in the non-writing surface scope that comprises the outer flat rubber belting of surveying 1 of tape spool and with flat rubber belting 1 outer surface and produces mutual fricting movement, and erasing apparatus 6 is by protective cover 7 sealings.
The beneficial effects of the utility model are, have thoroughly changed the pattern of traditional blackboard, write good hand touch with chalk, fluent writing, and double write area and memory space can be cleaned automatically, and the dust sealing is free from environmental pollution.
Description of drawings: further specify the utility model particular content and the course of work below in conjunction with the accompanying drawing illustrated embodiment.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is one of embodiment of the present utility model structural representation;
Fig. 3 is two structural representations of embodiment of the present utility model;
Fig. 4 is three structural representations of embodiment of the present utility model;
Fig. 5 is four structural representations of embodiment of the present utility model.
Among the figure: 1. driven tape spool 3. supporting plates 4. of flat rubber belting 2. tape spools 5. travelling gears 6. erasing apparatus 7. protective covers 8. reducing motors 9. hand gears initiatively.
The specific embodiment: further specify the utility model particular content and the course of work thereof below in conjunction with the accompanying drawing illustrated embodiment.
The utility model adopts the operation principle of similar conveyer belt, its structure is consulted Fig. 1: be applicable to that with deflection and surface the flat rubber belting 1 that chalk is write makes closed ring, with two tape spools that are parallel to each other (belt wheel) be driven tape spool 2 and initiatively tape spool 4 with annular flat belt 1 tensioning, when tape spool rotated, flat rubber belting 1 rotated thereupon.Establish a hard supporting plate 3 at the back side of the zone face of Gong writing and be close to, constitute the supporting of the zone face of Gong writing, so just formed the basic structure that the utility model relates to blackboard with flat rubber belting 1.Erasing apparatus 6 is contained in the outside of a tape spool or is contained in the non-writing surface scope of flat rubber belting 1.Erasing apparatus 6 adopts brush axle construction, and the brush axle is close to flat rubber belting 1, and it and flat rubber belting 1 outer surface produce mutual fricting movement.The rotation direction of brush axle is opposite with tape spool, and rotating speed is higher than the tape spool rotating speed far away.Like this, when needing to wipe, reducing motor 8 drives active tape spool 4 and makes erasing apparatus 6 high-speed motions, and when flat rubber belting 1 process brush axle, blackboard will be cleaned automatically.Because erasing apparatus 6 is by protective cover 7 sealings, protective cover 7 seals dust and collect, and does not pollute the environment, and realizes environment-friendly function.
Erasing apparatus 6 can interlock or drive with the tape spool drive unit.
Drive unit can be electronic or man-operated mechanism, adopts and can adopt reducing motor when electronic.
Erasing apparatus 6 can be to rotate erasable or move back and forth erasable.
Blackboard can be arranged in horizontal movement, moves both vertically and arranges or move both vertically the doubly-linked layout.In the embodiment of Fig. 2, tape spool is arranged vertically writes the band horizontal movement.In the embodiments of figure 3, the horizontally disposed band of writing of tape spool moves both vertically.In the embodiment of Fig. 4, the embodiment of Fig. 3 is formed double-open type side by side, further enlarged write area and memory space.About two unit transmissions separate, can control respectively.In order to be adapted to not have the service condition of electricity, Fig. 5 then is the embodiment of manual drives.9 is that hand gear adopts the manual handle structure among the figure.
Claims (5)
1. wiping the environmental protection chalk blackboard certainly is made up of writing surface and erasing apparatus, it is characterized in that writing surface is a closed ring flat rubber belting 1, it is by two parallel tape spool tensionings, tape spool is rotated by drive unit, flat rubber belting (1) rotates thereupon, be provided with the smooth supporting plate of the hard of being close to it (3) at the back side of flat rubber belting writing surface, erasing apparatus (6) is located in the non-writing surface scope that comprises the outer flat rubber belting of surveying 1 of tape spool and with flat rubber belting (1) outer surface and produces mutual fricting movement, and erasing apparatus (6) is sealed by protective cover (7).
2. according to claim 1 from wiping the environmental protection chalk blackboard, it is characterized in that said erasing apparatus (6) and tape spool drive unit can interlock or drive.
3. according to claim 1 and 2 from wiping the environmental protection chalk blackboard, it is characterized in that said drive unit can be electronic or man-operated mechanism.
4. according to claim 1 and 2 from wiping the environmental protection chalk blackboard, it is characterized in that erasing apparatus (6) can be to rotate erasable or move back and forth erasable.
5. according to claim 1 from wiping the environmental protection chalk blackboard, it is characterized in that being that blackboard can horizontal movement layout, the layout that moves both vertically or the doubly-linked layout that moves both vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02210999 CN2538555Y (en) | 2002-04-01 | 2002-04-01 | Automatic wiping environment protection blackboard using chalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02210999 CN2538555Y (en) | 2002-04-01 | 2002-04-01 | Automatic wiping environment protection blackboard using chalk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2538555Y true CN2538555Y (en) | 2003-03-05 |
Family
ID=33691017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02210999 Expired - Fee Related CN2538555Y (en) | 2002-04-01 | 2002-04-01 | Automatic wiping environment protection blackboard using chalk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2538555Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103613A (en) * | 2019-05-20 | 2019-08-09 | 华北理工大学 | A kind of industrial design Freehandhand-drawing recycling device |
| CN112046174A (en) * | 2020-10-12 | 2020-12-08 | 桂林电子科技大学 | Teaching display device and method |
-
2002
- 2002-04-01 CN CN 02210999 patent/CN2538555Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103613A (en) * | 2019-05-20 | 2019-08-09 | 华北理工大学 | A kind of industrial design Freehandhand-drawing recycling device |
| CN110103613B (en) * | 2019-05-20 | 2020-09-29 | 华北理工大学 | Industrial design hand-painted recycling device |
| CN112046174A (en) * | 2020-10-12 | 2020-12-08 | 桂林电子科技大学 | Teaching display device and method |
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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 |