CN2254044Y - Dustless blackboard eraser - Google Patents
Dustless blackboard eraser Download PDFInfo
- Publication number
- CN2254044Y CN2254044Y CN 96232768 CN96232768U CN2254044Y CN 2254044 Y CN2254044 Y CN 2254044Y CN 96232768 CN96232768 CN 96232768 CN 96232768 U CN96232768 U CN 96232768U CN 2254044 Y CN2254044 Y CN 2254044Y
- Authority
- CN
- China
- Prior art keywords
- brush
- blackboard
- core
- utility
- model
- 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
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a dustless blackboard brush which is composed of a brush board and a brush core, wherein, the brush core is fixed on the brush board, and the brush core is dipped with dust removing liquid when the utility model is used. The utility model has the characteristics of convenient use, no chalk dust after brushing, clear blackboard, clear font when words are written on the blackboard again, labor saving for looking, etc., which is suitable for blackboard teaching.
Description
The utility model relates to the assistant product that a kind of black board teaching is write.
The blackboard brush that generally uses is brushed the back dust from flying now, influences health, and brush back blackboard unintelligible (especially Glass blackboard), and the handwriting is blurred when writing again, seen effort, affects one's power of vision.
The purpose of this utility model is to overcome the above-mentioned shortcoming of existing blackboard brush, and a kind of dustless eraser is provided, the no chalk dust in brush back, and blackboard is clear, and font is clear when writing again, has seen laborsaving.
The purpose of this utility model is achieved in that dustless eraser is made of brush board and brush core, and brush core dress is fixed on the brush board, the time spent brush core dipping dirt liquid that disappears.The brush core is made with foamed plastics.The dirt liquid that disappears is mixed with by industrial chemicals such as paraffin, surfactants, or selects indeterminate plant oil (as salad oil), neutral mineral oil (as instrument oil, turbine oil) for use.During use, will brush earlier that a spot of dirt liquid that disappears of dipping gets final product on the core.
The utility model compare existing blackboard brush have easy to use, the no chalk dust in brush back, blackboard is clear, font is clear when writing again, has seen laborsavingly, helps characteristics such as sight protectio.Suitable black board teaching uses.
The utility model further describes below with reference to the embodiment in the accompanying drawing:
Fig. 1 is the stereogram of dustless eraser, is made of brush board 1 and brush core 2.Brush board 1 usefulness engineering plastics are injection molded into or become with metallic plate punching.Brush core 2 usefulness foamed plastics are made, and brush core 2 is flush-mounted on the brush board 1, also brush core 2 can be adhered on the hard sheet metal, and hard sheet metal inserts in the draw-in groove of brush board 1.
Claims (2)
1, dustless eraser is characterized in that being made of brush board and brush core, and brush core dress is fixed on the brush board, the brush core dipping dirt liquid that disappears.
2, dustless eraser according to claim 1 is characterized in that brushing core and makes with foamed plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96232768 CN2254044Y (en) | 1996-03-04 | 1996-03-04 | Dustless blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96232768 CN2254044Y (en) | 1996-03-04 | 1996-03-04 | Dustless blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2254044Y true CN2254044Y (en) | 1997-05-14 |
Family
ID=33909635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96232768 Expired - Fee Related CN2254044Y (en) | 1996-03-04 | 1996-03-04 | Dustless blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2254044Y (en) |
-
1996
- 1996-03-04 CN CN 96232768 patent/CN2254044Y/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 |