CN201922801U - Blackboard eraser capable of absorbing chalk dust - Google Patents
Blackboard eraser capable of absorbing chalk dust Download PDFInfo
- Publication number
- CN201922801U CN201922801U CN2010206726739U CN201020672673U CN201922801U CN 201922801 U CN201922801 U CN 201922801U CN 2010206726739 U CN2010206726739 U CN 2010206726739U CN 201020672673 U CN201020672673 U CN 201020672673U CN 201922801 U CN201922801 U CN 201922801U
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- CN
- China
- Prior art keywords
- cavity
- blackboard
- erasing
- hair
- blackboard eraser
- 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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Abstract
The utility model discloses a blackboard eraser capable of absorbing chalk dust. The blackboard eraser comprises an erasing board and erasing hair and is characterized in that cavities are respectively arranged at the left side and the right side of the erasing hair, the cavity is provided with openings facing towards one side of a blackboard and one side of the erasing hair, and rolling type hairbrushes are arranged in the cavities; a cavity is arranged at the bottom of the erasing hair, two sides and the rear part of the cavity are closed, an end cover used as a chalk collecting chamber is arranged at the bottom of the cavity, and a rolling type hairbrush is arranged at the inner part of the cavity; and the cavities at the left and right sides of the erasing hair are communicated with the cavity at the bottom of the erasing hair. When the blackboard eraser is used to erase chalk characters on the blackboard, the rolling type hair brushes rotate as the erasing hair moves so as to bring the chalk dust on the blackboard into the cavities, to ensure the chalk dust to fall in the end cover used as the chalk dust collecting chamber and to achieve the purpose of absorbing the chalk dust.
Description
Technical field
The utility model relates to a kind of teaching aid, especially a kind of blackboard eraser.
Background technology
Have many teachers to suffer from breathing problem now, during letter written with chalk on using common blackboard eraser blackboard wiping of this and teacher, dust flies upward everywhere, and the respiratory tract that enters the teacher is inseparable.Therefore, for the health of Faculty and Students is considered, must a kind of blackboard eraser that can dust suction of exploitation.
The utility model content
The purpose of this utility model is to overcome deficiency of the prior art, and a kind of dust absorption blackboard eraser is provided, and this blackboard eraser can prevent that dust from flying upward everywhere, thereby has avoided the health of dust infringement Faculty and Students.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of dust absorption blackboard eraser, comprise wiping board and snag, it is characterized in that the side towards blackboard that each side is provided with of described snag reaches towards the cavity of a side opening of snag, is provided with the roller hairbrush in the described cavity; The bottom of described snag is provided with the cavity of both sides and rear closure, and the end cap that uses as dust storage chamber is stamped in the bottom of this cavity, and inside is provided with the roller hairbrush; The cavity of the described left and right sides communicates with the cavity of bottom.During letter written with chalk on using the blackboard eraser blackboard wiping, the roller hairbrush moves with snag and rotates, thereby the chalk powder on the blackboard is brought in the cavity, falls in the end cap that uses as dust storage chamber, plays the purpose of dust suction.
The utlity model has following outstanding beneficial effect: the utility model is simple in structure, can prevent that dust from flying upward everywhere, thereby has avoided the health of dust infringement Faculty and Students.
Description of drawings
Accompanying drawing 1 is a front view of the present utility model, and accompanying drawing 2 is a vertical section structure schematic diagram of the present utility model;
Description of reference numerals: 1 snag, the cavity of 2 left and right sides, 3 roller hairbrush, 4 bottom cavity, 5 end caps, 6 wiping boards.
The specific embodiment
As shown in Figure 1, dust absorption blackboard eraser of the present utility model, the side towards blackboard that each side is provided with of snag 1 reaches towards the cavity 2 of a side opening of snag, is provided with roller hairbrush 3 in the described cavity; The bottom of described snag is provided with the cavity 4 of both sides and rear closure, and the end cap 5 that uses as dust storage chamber is stamped in the bottom of cavity 4, and inside is provided with roller hairbrush 3; The cavity 2 of the described left and right sides communicates with the cavity 4 of bottom.
As shown in Figure 2, blackboard eraser of the present utility model comprises snag 1 and wiping board 6, and the side towards blackboard that each side is provided with of snag 1 reaches towards the cavity 2 of a side opening of snag, is provided with roller hairbrush 3 in the described cavity.
During letter written with chalk on using the blackboard eraser blackboard wiping, roller hairbrush 3 moves with snag and rotates, thereby the chalk powder on the blackboard is brought in cavity 2 and the cavity 4, falls in the end cap 5 that uses as dust storage chamber, plays the purpose of dust suction.
Claims (1)
1. a dust absorption blackboard eraser comprises wiping board and snag, it is characterized in that, the side towards blackboard that each side is provided with of described snag reaches towards the cavity of a side opening of snag, is provided with the roller hairbrush in the described cavity; The bottom of described snag is provided with the cavity of both sides and rear closure, and end cap is stamped in the bottom of this cavity, and inside is provided with the roller hairbrush; The cavity of the described left and right sides communicates with the cavity of bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206726739U CN201922801U (en) | 2010-12-21 | 2010-12-21 | Blackboard eraser capable of absorbing chalk dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206726739U CN201922801U (en) | 2010-12-21 | 2010-12-21 | Blackboard eraser capable of absorbing chalk dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201922801U true CN201922801U (en) | 2011-08-10 |
Family
ID=44426669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206726739U Expired - Fee Related CN201922801U (en) | 2010-12-21 | 2010-12-21 | Blackboard eraser capable of absorbing chalk dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201922801U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070899A (en) * | 2013-03-25 | 2014-10-01 | 上海工程技术大学 | Rotary rolling shaft type dust removing blackboard eraser with cones |
| CN108973463A (en) * | 2018-09-15 | 2018-12-11 | 席自强 | A kind of rolling chalk dust-absorbing eraser |
-
2010
- 2010-12-21 CN CN2010206726739U patent/CN201922801U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070899A (en) * | 2013-03-25 | 2014-10-01 | 上海工程技术大学 | Rotary rolling shaft type dust removing blackboard eraser with cones |
| CN108973463A (en) * | 2018-09-15 | 2018-12-11 | 席自强 | A kind of rolling chalk dust-absorbing eraser |
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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: 20110810 Termination date: 20111221 |