CN2635382Y - Inferior light polyethylene dustless blackboard - Google Patents
Inferior light polyethylene dustless blackboard Download PDFInfo
- Publication number
- CN2635382Y CN2635382Y CN 03216715 CN03216715U CN2635382Y CN 2635382 Y CN2635382 Y CN 2635382Y CN 03216715 CN03216715 CN 03216715 CN 03216715 U CN03216715 U CN 03216715U CN 2635382 Y CN2635382 Y CN 2635382Y
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- CN
- China
- Prior art keywords
- utility
- blackboard
- model
- back lining
- free
- 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 belongs to the teaching equipment technology, particularly belongs to one-step molding dust-free blackboards, namely a sub light polyethylene dust-free blackboard, which comprises a board and a back lining. The utility model is characterized in that the board and the back lining are solidified and connected as a whole; the back lining made of polyurethane foam material is solidified with the board material as a whole through a die; the writing tool of the utility model mainly adopts various liquid writing pens and special writing pens. Compared with the prior art, the utility model has the following advantages, 1, the back lining adopts the polyurethane foam material which has a good effect in overall molding and is applied to mold making and industrial production; 2, using environmentally-friendly materials, the blackboard itself is free from volatilization, non-polluting, non-perishable, light in texture, easy to install and durable; 3, the liquid writing pen will not produce dust pollution and is conducive to health.
Description
Technical field
The utility model belongs to the teaching equipment technical field, specifically is a kind of one-time formed dust-free blackboard.
Background technology
In the prior art, blackboard for education mainly contains two big classes, one class is traditional cement blackboard, frosted blackboard and wood materials blackboard, another kind of blackboard based on spraying steel plate for comparatively generally using at present, and the writing material of this two classes blackboard is all based on chalk, exist dust pollution big, blackboard surfacing and back lining materials disunity, during use and after using a period of time, blackboard reflective light, write definition and descend, influence all deficiencies such as student's vision.
Summary of the invention
The utility model has solved blackboard reflective light in the prior art, writes degradation technical problem under the definition, provides a kind of and has write with liquid, does not produce the inferior light polyethylene dust-free blackboard of dust pollution.
The utility model is achieved in that inferior light polyethylene dust-free blackboard, includes panel, it is characterized in that the curing of panel and backing connects as one, and backing adopts polyamine fat expanded material to be cured as one by mould and panel material; Panel can be made into surface plate or arc.Its writing implement mainly uses various liquid lettering pens and special writing pen.
The utility model compared with prior art has the following advantages, and 1, backing adopts polyamine fat expanded material, global formation is good, is applicable to mould manufacturing and suitability for industrialized production; 2, used environment-friendly materials, blackboard itself do not have volatilization, pollution-free, do not have and rot, quality is slim and graceful, easy for installation, durable in use; 3, utilize the liquid lettering pen, do not produce dust pollution, help health.
Description of drawings
Fig. 1 is the structure chart of inferior light polyethylene dust-free blackboard
Fig. 2 is the camber structure chart of inferior light polyethylene dust-free blackboard
The specific embodiment
With reference to the accompanying drawings embodiment is further described, present embodiment is to be used for illustrating of the present utility model, rather than the utility model is carried out any restriction.
Inferior light polyethylene dust-free blackboard is made up of panel and backing, and the inferior light polyethylene of panel 1 usefulness thin plate is made, and backing 2 usefulness polyamine fat expanded materials and panel material are by the mold cured moulding, and panel 1 also can be made arc 3 by mould.
Claims (2)
1, a kind of inferior light polyethylene dust-free blackboard includes panel, it is characterized in that panel (1) and backing (2) curing connect as one.
2, inferior light polyethylene dust-free blackboard according to claim 1 is characterized in that panel (1) can be made into arc (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03216715 CN2635382Y (en) | 2003-04-22 | 2003-04-22 | Inferior light polyethylene dustless blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03216715 CN2635382Y (en) | 2003-04-22 | 2003-04-22 | Inferior light polyethylene dustless blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2635382Y true CN2635382Y (en) | 2004-08-25 |
Family
ID=34290041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03216715 Expired - Fee Related CN2635382Y (en) | 2003-04-22 | 2003-04-22 | Inferior light polyethylene dustless blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2635382Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909769A (en) * | 2014-03-27 | 2014-07-09 | 惠州市好的板科技有限公司 | Writing board and production method thereof |
-
2003
- 2003-04-22 CN CN 03216715 patent/CN2635382Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909769A (en) * | 2014-03-27 | 2014-07-09 | 惠州市好的板科技有限公司 | Writing board and production method thereof |
| CN103909769B (en) * | 2014-03-27 | 2016-08-24 | 惠州市好的板科技有限公司 | A kind of board and preparation method thereof |
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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 |