CN103895426A - Retractable blackboard eraser - Google Patents
Retractable blackboard eraser Download PDFInfo
- Publication number
- CN103895426A CN103895426A CN201210569433.XA CN201210569433A CN103895426A CN 103895426 A CN103895426 A CN 103895426A CN 201210569433 A CN201210569433 A CN 201210569433A CN 103895426 A CN103895426 A CN 103895426A
- Authority
- CN
- China
- Prior art keywords
- blackboard eraser
- folding ruler
- retractable
- holder
- retractable blackboard
- 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.)
- Pending
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- Drawing Aids And Blackboards (AREA)
Abstract
The invention provides a retractable blackboard eraser. The retractable blackboard eraser is invented under the inspiration of a folding ruler and a lifting door in the daily life. Through the arrangement of an extension bar on an ordinary blackboard eraser cleaning holder, wiping scope of the blackboard eraser can be effectively expanded, and more convenient experience is brought to more users.
Description
Technical field
The present invention relates to the burnisher that a kind of teaching in classroom is conventional.
Background technology
The blackboard eraser that present most school or unit use often just wipes by one that holder and bristle form, and in the time of the person's handwriting of the shorter people's wiping eminence of height, how need to do feet by stool or chair and just can complete, and this brings some inconvenience to part user.
Summary of the invention
The technical problem to be solved in the present invention is to design a kind of blackboard eraser that can be flexible.
Technical scheme of the present invention: be screwed a folding ruler with Telescopic in the wiping holder of ordinary blackboard eraser, this folding ruler forms and forms with the intersection plank that screw connects by two, and bottom is designed to slightly thick lever.
The invention has the beneficial effects as follows: this invention lived in the inspiration of folding ruler, overhead door, by wiping in holder extension bar is installed at ordinary blackboard eraser, can effectively expand its wiping scope, this brings more multi-user and experiences more easily.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is structural representation of the present invention.
In Fig. 1,1. bristle, 2. wipes holder, 3. folding ruler, 4. lever.
Specific embodiments
In the time that people cannot touch the person's handwriting of eminence with arm, push lever (4) with hand, folding ruler (3) is deformed into rhombus or is fully extended, and extends thereby realize armed lever, the bristle of blackboard eraser (1) is aimed to chalk writings, firmly pushing; The used time does not close up folding ruler (3), is folded to and wipes holder (2) behind.
Claims (1)
1. a blackboard eraser that can be flexible, is characterized in that: in the wiping holder of ordinary blackboard eraser, be screwed a folding ruler with Telescopic, this folding ruler forms and forms with the intersection plank that screw connects by two, and bottom is designed to slightly thick lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210569433.XA CN103895426A (en) | 2012-12-25 | 2012-12-25 | Retractable blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210569433.XA CN103895426A (en) | 2012-12-25 | 2012-12-25 | Retractable blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103895426A true CN103895426A (en) | 2014-07-02 |
Family
ID=50987140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210569433.XA Pending CN103895426A (en) | 2012-12-25 | 2012-12-25 | Retractable blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103895426A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973461A (en) * | 2018-08-09 | 2018-12-11 | 合肥俊刚机械科技有限公司 | A kind of self-bring in type rotation office wiping word brush |
-
2012
- 2012-12-25 CN CN201210569433.XA patent/CN103895426A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973461A (en) * | 2018-08-09 | 2018-12-11 | 合肥俊刚机械科技有限公司 | A kind of self-bring in type rotation office wiping word brush |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140702 |