CN2759808Y - Environment protection black board eraser - Google Patents
Environment protection black board eraser Download PDFInfo
- Publication number
- CN2759808Y CN2759808Y CN 200420052898 CN200420052898U CN2759808Y CN 2759808 Y CN2759808 Y CN 2759808Y CN 200420052898 CN200420052898 CN 200420052898 CN 200420052898 U CN200420052898 U CN 200420052898U CN 2759808 Y CN2759808 Y CN 2759808Y
- Authority
- CN
- China
- Prior art keywords
- utility
- model
- covering
- covering layer
- base plate
- 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 appliance, more specifically an environmental protection blackboard eraser, which comprises a basal body and a bottom board. The utility model is characterized in that the utility model is provided with a covering layer, mutually parallel grooves (or lug bosses) are arranged on the covering layer, the circumference of the covering layer is connected with the bottom board and an elastic filling pad is arranged between the covering layer and the bottom board. The utility model has the advantages of simple structure, convenient production, low cost, convenient operation, good effect on dust suction, etc., and is an ideal teaching appliance.
Description
Technical field
The utility model relates to teaching appliance, specifically environment-friendly dust-proof eraser.
Background technology
As everyone knows, the blackboard eraser that in teaching, uses at present, it is provided with matrix, base plate, matrix and base plate are bonded as one, base plate is provided with bristle, and the blackboard eraser that has also is provided with handle on matrix, when with blackboard eraser the chalk writing on the blackboard being wiped, the dust of wiping flies upward everywhere, has a strong impact on the cleaning of the healthy and clothing of Faculty and Students.
Summary of the invention
The purpose of this utility model provides a kind of environment-friendly dust-proof eraser of simple in structure, easily manufactured, with low cost, self-priming dust.
The utility model can reach by following measure:
A kind of environment-friendly dust-proof eraser, be provided with matrix, base plate, it is characterized in that being provided with covering, covering is provided with the groove (or boss) that is parallel to each other, covering generally adopts facecloth, and the periphery of covering is connected with base plate, is provided with the elasticity fill-in pad between covering and base plate, fill-in pad generally adopts sponge, also available cotton, silk floss etc.
The utility model has advantages such as simple in structure, easily manufactured, with low cost, easy to use, that pick-up performance is good owing to adopt said structure, is a kind of desirable teaching appliance.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model, also is the structural representation of a kind of embodiment.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is further described:
As shown in drawings, a kind of environment-friendly dust-proof eraser, be provided with matrix 1, base plate 2, it is characterized in that being provided with covering 3, covering 3 is provided with the groove (or boss) that is parallel to each other, the covering 3 general facecloths that adopt, the periphery of covering 3 is connected with base plate 2, and covering 3 is sewed up with base plate 2 general employing needlework and is connected, and 2 of covering 3 and base plates are provided with elasticity fill-in pad 4, fill-in pad 4 general sponge, also available cotton, the silk floss etc. of adopting.
Claims (2)
1, a kind of environment-friendly dust-proof eraser is provided with matrix, base plate, it is characterized in that being provided with covering, and the periphery of covering is connected with base plate, is provided with the elasticity fill-in pad between covering and base plate.
2, a kind of environment-friendly dust-proof eraser according to claim 1 is characterized in that covering is provided with groove or the boss that is parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420052898 CN2759808Y (en) | 2004-08-04 | 2004-08-04 | Environment protection black board eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420052898 CN2759808Y (en) | 2004-08-04 | 2004-08-04 | Environment protection black board eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2759808Y true CN2759808Y (en) | 2006-02-22 |
Family
ID=36082010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420052898 Expired - Fee Related CN2759808Y (en) | 2004-08-04 | 2004-08-04 | Environment protection black board eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2759808Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104742621A (en) * | 2015-03-20 | 2015-07-01 | 刘忠一 | Combined blackboard eraser capable of being used in cooperation with automatic blackboard eraser cleaner |
-
2004
- 2004-08-04 CN CN 200420052898 patent/CN2759808Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104742621A (en) * | 2015-03-20 | 2015-07-01 | 刘忠一 | Combined blackboard eraser capable of being used in cooperation with automatic blackboard eraser cleaner |
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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 |