CN204309478U - Blackboard eraser - Google Patents
Blackboard eraser Download PDFInfo
- Publication number
- CN204309478U CN204309478U CN201420773477.9U CN201420773477U CN204309478U CN 204309478 U CN204309478 U CN 204309478U CN 201420773477 U CN201420773477 U CN 201420773477U CN 204309478 U CN204309478 U CN 204309478U
- Authority
- CN
- China
- Prior art keywords
- blackboard eraser
- blackboard
- clean layer
- vertical pivot
- cylinder
- 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 discloses a kind of blackboard eraser, wherein, comprising: a rectangle blackboard, a slide rail is respectively equipped with in the both sides up and down of blackboard, have a blackboard eraser, respectively there is a roller its top and bottom, and roller is laid with on slide rail, can horizontally slip, have a vertical pivot in blackboard eraser, vertical pivot is arranged a cylinder, cylinder is that axle center rotates around vertical pivot, cylinder outer wrapping one deck clean layer, clean layer contacts with blackboard.Blackboard eraser middle panel has two symmetrical depressions, can be used for pulling blackboard eraser to move left and right.The utility model is easy to use, and erasing area is large, and wiping effect is good, runs into and wipes sordid place, also can wiping repeatedly.
Description
Technical field
The utility model relates to realia field, particularly relates to a kind of blackboard eraser being carried out blackboard wiping by cylinder.
Background technology
The ordinary blackboard eraser used in school has many shortcomings, as cumbersome in wiped blackboard, wipes one piece and writes full blackboard needs many time, and that wipes is also not necessarily very clean simultaneously, and the vestige of white chalk is also left in some place.And blackboard eraser is after repeatedly using, be covered with dust above, the efficiency of blackboard wiping sharply declines.Therefore, need a kind of novel blackboard eraser, easy to use, wiping effect is good.
Summary of the invention
For solving the problem, provide a kind of blackboard eraser, wherein, comprise: a rectangle blackboard, a slide rail is respectively equipped with in the both sides up and down of blackboard, has a blackboard eraser, respectively there is a roller its top and bottom, roller is laid with on slide rail, can horizontally slip, and has a vertical pivot in blackboard eraser, vertical pivot is arranged a cylinder, cylinder is that axle center rotates around vertical pivot, and cylinder outer wrapping one deck clean layer, clean layer contacts with blackboard.Blackboard eraser middle panel has two symmetrical depressions, can be used for pulling blackboard eraser to move left and right.
Above-mentioned blackboard eraser, wherein clean layer is dismountable, if clean layer is dirty due to Long-Time Service, wiping ability is declined, the clean layer that can more renew.
Above-mentioned blackboard eraser, wherein clean layer is made up of cotton, or is made up of felt, or is made up of terylene.
In order to make to pull conveniently, above-mentioned blackboard eraser, depression is wherein semicircular, or square.
The beneficial effect of this utility model is: easy to use, and erasing area is large, and wiping effect is good, runs into and wipes sordid place, also can wiping repeatedly.
Accompanying drawing explanation
Fig. 1 is the front view of blackboard eraser of the present utility model
Fig. 2 is the side cross-sectional, view of blackboard eraser of the present utility model.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but not as restriction of the present utility model.
As shown in Fig. 1, Fig. 2, there is in one blackboard eraser comprising a rectangle blackboard 1, a slide rail 2 is respectively equipped with in the both sides up and down of blackboard 1, have a blackboard eraser 3, respectively there is a roller 5 its top and bottom, roller 5 lay with slide rail on 2, can horizontally slip, have a vertical pivot 8 in blackboard eraser 3, vertical pivot 8 is arranged a cylinder 6, cylinder 6 is axle center rotation around vertical pivot 8, cylinder 6 outer wrapping one clean layer 7, clean layer 7 contacts with blackboard.Blackboard eraser 1 middle panel has two symmetrical depressions 4, can be used for pulling blackboard eraser 1 to move left and right.
In use, handle puts into one of them depression 4, and pull blackboard eraser 1 to mobile, this has driven the rolling of the cylinder 6 in blackboard eraser 3, and the clean layer 7 outside cylinder 6 contacts with blackboard 1 thereupon, and wipes the font on blackboard 1.If once there is no wiped clean, blackboard eraser 3 can also be moved left and right, repeatedly wiping, until clean.
Further, above-mentioned blackboard eraser, wherein clean layer 7 is dismountable, if clean layer 7 is dirty due to Long-Time Service, wiping ability is declined, the clean layer 7 that can more renew.
Further, above-mentioned blackboard eraser, wherein clean layer 7 is made up of cotton, or is made up of felt, or is made up of terylene.
Further, in order to make to pull conveniently, above-mentioned blackboard eraser, depression 4 is wherein semicircular, or square.
The foregoing is only the utility model preferred embodiment; not thereby embodiment of the present utility model and protection domain is limited; to those skilled in the art; should recognize and all should be included in the scheme that equivalent replacement done by all utilization the utility model descriptions and diagramatic content and apparent change obtain in protection domain of the present utility model.
Claims (4)
1. a blackboard eraser, it is characterized in that, comprise: a rectangle blackboard, a slide rail is respectively equipped with in the both sides up and down of described blackboard, there is a blackboard eraser, respectively there is a roller its top and bottom, described roller is laid with on described slide rail, can horizontally slip, and has a vertical pivot in described blackboard eraser, described vertical pivot is arranged a cylinder, described cylinder is that axle center rotates around vertical pivot, described cylinder outer wrapping one deck clean layer, and described clean layer contacts with described blackboard, described blackboard eraser middle panel has two symmetrical depressions, can be used for pulling described blackboard eraser to move left and right.
2. blackboard eraser according to claim 1, is characterized in that, described clean layer is dismountable.
3. blackboard eraser according to claim 1, is characterized in that, described clean layer is made up of cotton, or is made up of felt, or is made up of terylene.
4. blackboard eraser according to claim 1, is characterized in that, described depression is semicircular, or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420773477.9U CN204309478U (en) | 2014-12-09 | 2014-12-09 | Blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420773477.9U CN204309478U (en) | 2014-12-09 | 2014-12-09 | Blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204309478U true CN204309478U (en) | 2015-05-06 |
Family
ID=53131808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420773477.9U Expired - Fee Related CN204309478U (en) | 2014-12-09 | 2014-12-09 | Blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204309478U (en) |
-
2014
- 2014-12-09 CN CN201420773477.9U patent/CN204309478U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 Termination date: 20151209 |
|
| EXPY | Termination of patent right or utility model |