CN201217332Y - Dust absorption blackboard - Google Patents
Dust absorption blackboard Download PDFInfo
- Publication number
- CN201217332Y CN201217332Y CNU2008200165324U CN200820016532U CN201217332Y CN 201217332 Y CN201217332 Y CN 201217332Y CN U2008200165324 U CNU2008200165324 U CN U2008200165324U CN 200820016532 U CN200820016532 U CN 200820016532U CN 201217332 Y CN201217332 Y CN 201217332Y
- Authority
- CN
- China
- Prior art keywords
- dust
- blackboard
- plate face
- hollow cavity
- board surface
- 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 belongs to the teaching tools, particularly relating to a dust-collecting blackboard, which is characterized in that a plurality of pores are evenly distributed on the board surface; a closed partition board corresponding to the board surface is arranged on the backside of the board surface; an air-suction fan is arranged in a hollow cavity formed between the closed partition board and the board surface; and a bottom frame is a hollow cavity body which is communicated with the hollow cavity. The dust-collecting blackboard has the advantages that the dust generated in the process of erasing the blackboard writings is not dispersed around and causes no pollution, so that the blackboard is easy to clean.
Description
Technical field:
The utility model belongs to teaching aid, is specifically related to a kind of dust-absorbing blackboard.
Background technology:
Existing blackboard is to be made of plate face and underframe, writes when wiping writing with chalk, and the disperse everywhere of the dust of generation easily by academics and students's inspiration, influences healthyly, causes air pollution.
Summary of the invention:
The purpose of this utility model provides a kind of dust-absorbing blackboard of simple in structure, easy to use, no dust pollution.
The technical solution of the utility model is: a kind of dust-absorbing blackboard, be provided with underframe in plate face lower end, it is characterized in that being laid with on the plate face several micropores, the plate face back side is provided with and the corresponding enclosed baffle of plate face, form in the cavity between enclosed baffle and the plate face and establish drawing fan, underframe is hollow cavity, and the hollow cavity of cavity and underframe connects.
Owing to adopt technique scheme, when writing wiping with chalk, the dust that produces, in the cavity that between micropore suction enclosed baffle and plate face, forms under the effect of drawing fan, and fall under gravity in the hollow cavity of underframe, have the not disperse everywhere of dust that produces when wiping the writing on the blackboard writing, non-environmental-pollution is convenient to the advantage of cleaning.
Description of drawings:
Come the technical solution of the utility model is elaborated below in conjunction with the drawings and specific embodiments.Accompanying drawing is a structural representation of the present utility model.
The specific embodiment:
With reference to the accompanying drawings, a kind of dust-absorbing blackboard, be provided with underframe 2 in plate face 1 lower end, be laid with several micropores 3 on the plate face 1, the plate face back side is provided with and the corresponding enclosed baffle 4 of plate face, form in the cavity 5 between enclosed baffle 4 and the plate face 1 and establish drawing fan 6, underframe 2 is hollow cavity, and cavity 5 connects with underframe 2 hollow cavitys.
Claims (1)
1, a kind of dust-absorbing blackboard, be provided with underframe (2) in plate face (1) lower end, it is characterized in that being laid with on the plate face (1) several micropores (3), the plate face back side is provided with and the corresponding enclosed baffle of plate face (4), form between enclosed baffle (4) and the plate face (1) and establish drawing fan (6) in the cavity (5), underframe (2) is hollow cavity, and cavity (5) connects with the hollow cavity of underframe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200165324U CN201217332Y (en) | 2008-01-10 | 2008-01-10 | Dust absorption blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200165324U CN201217332Y (en) | 2008-01-10 | 2008-01-10 | Dust absorption blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201217332Y true CN201217332Y (en) | 2009-04-08 |
Family
ID=40540167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200165324U Expired - Fee Related CN201217332Y (en) | 2008-01-10 | 2008-01-10 | Dust absorption blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201217332Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105922794A (en) * | 2016-05-25 | 2016-09-07 | 张子祺 | Dust absorption blackboard |
| CN109017034A (en) * | 2018-08-02 | 2018-12-18 | 安徽申泉化工有限公司 | A kind of self-priming college English Teaching mutually employs display board |
-
2008
- 2008-01-10 CN CNU2008200165324U patent/CN201217332Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105922794A (en) * | 2016-05-25 | 2016-09-07 | 张子祺 | Dust absorption blackboard |
| CN109017034A (en) * | 2018-08-02 | 2018-12-18 | 安徽申泉化工有限公司 | A kind of self-priming college English Teaching mutually employs display board |
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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: 20090408 Termination date: 20100210 |