CN201961043U - Blackboard eraser - Google Patents
Blackboard eraser Download PDFInfo
- Publication number
- CN201961043U CN201961043U CN2010206675559U CN201020667555U CN201961043U CN 201961043 U CN201961043 U CN 201961043U CN 2010206675559 U CN2010206675559 U CN 2010206675559U CN 201020667555 U CN201020667555 U CN 201020667555U CN 201961043 U CN201961043 U CN 201961043U
- Authority
- CN
- China
- Prior art keywords
- eraser
- dust
- blackboard
- bristles
- cover 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 discloses a blackboard eraser, which comprises an eraser board and eraser bristles, and is characterized in that through holes are densely distributed on the surface of the eraser board, one side of the eraser board opposite to the eraser bristles is provided with a dust collecting chamber, the top of the dust collecting chamber is provided with a cover plate, the top of the dust collecting chamber and the cover plate are tightly embedded together, the edge of the eraser board is provided with a rubber wrapper around the bristles, and a gap is left between the rubber wrapper and the bristles. When the blackboard eraser is used for erasing chalk words on the blackboard, dust is enclosed in a space surrounded by the rubber wrapper so as to be prevented from scattering all around, and the dust can enter the dust collecting chamber through the through holes on the blackboard, so the dust is prevented from being gathered on the bristles to affect the use of the blackboard eraser. Only the cover plate needs to be taken down after the blackboard is erased by the blackboard eraser, and then the chalk dust can be poured out.
Description
Technical field
The utility model relates to a kind of teaching aid, especially a kind of blackboard eraser.
Background technology
Chalk and blackboard are still the teaching aid that often uses in the present teaching process.When using the letter written with chalk on the existing blackboard eraser blackboard wiping commonly used, dust will accumulate in the snag of blackboard eraser.The time that blackboard eraser is used has been grown, if can not remove the dust in the snag, just can wipe when erasing the board untotally, stays some vestiges again.When erasing the board simultaneously, dust from flying also can cause certain harm to wiper's health.
The utility model content
The purpose of this utility model is to overcome deficiency of the prior art, and a kind of novel blackboard eraser is provided, and this blackboard eraser not only can control of dust, can also suppress dust from flying.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of blackboard eraser, comprise wiping board and snag, it is characterized in that, described wiping board is densely covered with through hole on the surface, the side that described wiping board is relative with snag is provided with dust storage chamber, the top of described dust storage chamber has cover plate, described dust storage chamber top and cover plate closely are entrenched togather, the edge of described wiping board is provided with around snag rubber skin all around, leave the space between described rubber skin and the snag, further alleviate flying upward of dust, and make that dust is easier to enter dust storage chamber by through hole.
The utlity model has following outstanding beneficial effect: when the letter written with chalk on the use blackboard blackboard wiping, dust is closed in the space that the rubber skin surrounds, prevent dust to around fly upward, and dust can enter dust storage chamber by the through hole on the wiping board, has avoided dust accumulation to influence the use of blackboard eraser in snag.After having wiped blackboard, only cover plate need be taken off, chalk dust can be poured out.
Description of drawings
Accompanying drawing 1 is a sectional structure schematic diagram of the present utility model;
Description of reference numerals: 1 wiping board, 2 snags, 3 dust storage chambers, 4 cover plates, 5 rubber skins.
The specific embodiment
As shown in Figure 1, a kind of blackboard eraser, comprise wiping board 1 and snag 2, described wiping board is densely covered with through hole on 1 surface, described wiping board 1 and snag 2 relative sides are provided with dust storage chamber 3, and the top of described dust storage chamber 3 has cover plate 4, and described dust storage chamber 3 tops and cover plate 4 closely are entrenched togather, the edge of described wiping board 1 is provided with around snag 2 rubber skin 5 all around, leaves the space between described rubber skin 5 and the snag 2.
When the letter written with chalk on the use blackboard blackboard wiping, dust is closed in the space that rubber skin 5 surrounds, prevent dust to around fly upward, and dust can enter dust storage chamber 3 by the through hole on the wiping board 1, avoided dust accumulation to influence the use of blackboard eraser in snag 2.After having wiped blackboard, only cover plate 4 need be taken off, chalk dust can be poured out.
Claims (1)
1. blackboard eraser, comprise wiping board and snag, it is characterized in that, described wiping board is densely covered with through hole on the surface, the side that described wiping board is relative with snag is provided with dust storage chamber, and the top of described dust storage chamber has cover plate, and described dust storage chamber top and cover plate closely are entrenched togather, the edge of described wiping board is provided with around snag rubber skin all around, leaves the space between described rubber skin and the snag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206675559U CN201961043U (en) | 2010-12-18 | 2010-12-18 | Blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206675559U CN201961043U (en) | 2010-12-18 | 2010-12-18 | Blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201961043U true CN201961043U (en) | 2011-09-07 |
Family
ID=44523578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206675559U Expired - Fee Related CN201961043U (en) | 2010-12-18 | 2010-12-18 | Blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201961043U (en) |
-
2010
- 2010-12-18 CN CN2010206675559U patent/CN201961043U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20111218 |