CN201613762U - Dust-proof blackboard eraser - Google Patents
Dust-proof blackboard eraser Download PDFInfo
- Publication number
- CN201613762U CN201613762U CN2010200132987U CN201020013298U CN201613762U CN 201613762 U CN201613762 U CN 201613762U CN 2010200132987 U CN2010200132987 U CN 2010200132987U CN 201020013298 U CN201020013298 U CN 201020013298U CN 201613762 U CN201613762 U CN 201613762U
- Authority
- CN
- China
- Prior art keywords
- dust
- blackboard eraser
- shell
- housing
- opening
- 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 provides a dust-proof blackboard eraser, which belongs to the field of teaching aids and comprises a housing and a brush, wherein the brush is arranged inside the housing; cotton cloth is arranged on the periphery of the left end of the housing; an opening is formed at the bottom of the outer housing; an inclined plane is formed at the lower part of the inner wall of the housing; the bottom of the inclined plane is connected with the opening; and a dust storage box is arranged at the lower end of the housing and connected with the opening. The dust-proof blackboard eraser has the advantages of reasonable design and simple structure, can prevent chalk dust from splashing, and can prevent teaching environment from being polluted.
Description
(1) technical field
The utility model relates to a kind of teaching aid, specifically a kind of dust-proof blackboard eraser.
(2) background technology
Blackboard eraser is an educational aid commonly used in the teaching, needs to write down more new literacy or when erasing the board, the situation that chalk powder splashes usually can occur after class on blackboard, and situation not only influences teaching in this, and is unfavorable for healthy; In addition, chalk powder splashes, and has polluted environment.
(3) summary of the invention
Technical assignment of the present utility model is at the deficiencies in the prior art, and a kind of dust-proof blackboard eraser simple in structure, easy to use is provided.
The technical scheme that its technical problem that solves the utility model adopts is: structure of the present utility model comprises shell and hairbrush, hairbrush is arranged in the shell, shell left end periphery is provided with cotton, outer casing bottom is provided with opening, the outer casing inner wall bottom is provided with the inclined-plane, the bottom, inclined-plane is connected with opening part, and the shell lower end is provided with dust-collecting box and is connected with opening.
It is trapezoidal that shell is.
When erasing the board, cotton and shell cover on the letter written with chalk of hairbrush institute wiping in the certain space, and chalk powder can only splash in this space and can not overflow, and then chalk powder can fall because of the gravity effect, concentrates at last in the dust-collecting box; Dust-collecting box can be taken off after using up, pour interior the getting final product of container of appointment into.
A kind of dust-proof blackboard eraser of the present utility model compared with prior art, the beneficial effect that is produced is: prevent that when erasing the board chalk powder from splashing, prevent that teaching environment from being polluted, both brought convenience to teaching, avoided again exerting an influence to healthy.
(4) description of drawings
Accompanying drawing 1 is a structure cross-sectional schematic of the present utility model;
Accompanying drawing 2 is a left TV structure schematic diagram of the present utility model.
Among the figure, 1, shell, 2, cotton, 3, hairbrush, 4, opening, 5, dust-collecting box, 6, the inclined-plane.
(5) specific embodiment
Explain below below in conjunction with accompanying drawing the utility model being done.
As shown in drawings, a kind of dust-proof blackboard eraser of the present utility model, its structure is made up of shell 1 and hairbrush 3, hairbrush 3 is arranged in the shell 1, shell 1 left end periphery is provided with cotton 2, and shell 1 bottom is provided with opening 4, and shell 1 inwall bottom is provided with inclined- plane 6,6 bottoms, inclined-plane are connected with opening 4 places, and shell 1 lower end is provided with dust-collecting box 5 and is connected with opening 4; Shell 1 is trapezoidal.
A kind of dust-proof blackboard eraser processing and fabricating of the present utility model is simple and convenient, and processing and fabricating gets final product shown in the by specification accompanying drawing.
Except that the described technical characterictic of specification, be the known technology of those skilled in the art.
Claims (2)
1. dust-proof blackboard eraser, comprise shell and hairbrush, hairbrush is arranged in the shell, it is characterized in that shell left end periphery is provided with cotton, outer casing bottom is provided with opening, the outer casing inner wall bottom is provided with the inclined-plane, and the bottom, inclined-plane is connected with opening part, and the shell lower end is provided with dust-collecting box and is connected with opening.
2. a kind of dust-proof blackboard eraser according to claim 1 is characterized in that shell is trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200132987U CN201613762U (en) | 2010-01-11 | 2010-01-11 | Dust-proof blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200132987U CN201613762U (en) | 2010-01-11 | 2010-01-11 | Dust-proof blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201613762U true CN201613762U (en) | 2010-10-27 |
Family
ID=43000134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200132987U Expired - Fee Related CN201613762U (en) | 2010-01-11 | 2010-01-11 | Dust-proof blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201613762U (en) |
-
2010
- 2010-01-11 CN CN2010200132987U patent/CN201613762U/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: 20101027 Termination date: 20120111 |