CN203093474U - Novel dust collection and ventilation blackboard - Google Patents
Novel dust collection and ventilation blackboard Download PDFInfo
- Publication number
- CN203093474U CN203093474U CN 201220692873 CN201220692873U CN203093474U CN 203093474 U CN203093474 U CN 203093474U CN 201220692873 CN201220692873 CN 201220692873 CN 201220692873 U CN201220692873 U CN 201220692873U CN 203093474 U CN203093474 U CN 203093474U
- Authority
- CN
- China
- Prior art keywords
- blackboard
- ventilation
- dust collection
- students
- novel dust
- 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 novel dust collection and ventilation blackboard, which comprises a dust collection and ventilation blackboard, and is characterized in that ventilation holes (2) are arranged on the periphery of a traditional massive blackboard (1). The novel dust collection and ventilation blackboard has the advantages that the novel dust collection and ventilation blackboard can be rapidly cleaned when being cleaned, also does not spray chalk dust, thereby keeping fresh air in a classroom, not affecting physical health of teachers and students, supplying excellent learning environment for the students, enabling the students to keep clear thinking of learning, and also enabling the teachers to keep in excellent mental state to give the students a lesson.
Description
Technical field
The utility model is mainly used in the technical field of daily study article, is a kind of novel dust suction and ventilation blackboard specifically.
Background technology
When teacher and classmates erase the board on class, all be to wipe by hand, the chalk dust that produces during wiping is very many, flies upward everywhere, can produce very big harm to teacher and classmate's respiratory system like this.
Summary of the invention
The utility model dust suction and ventilation blackboard, purpose are that a kind of blackboard of design carries air exchange system, chalk dust can be sponged, and change good air for then the air in classroom.
The utility model dust suction and ventilation blackboard comprise: traditional bulk blackboard 1 is with air-vent 2 around the blackboard 1.
The advantage of the utility model dust suction and ventilation blackboard is: can be when erasing the board, the speed that erases the board is very fast, and do not spray chalk dust again, keep with fresh air in the classroom, can not exert an influence to the healthy of academics and students, give student's academic environment good, the thinking of study is clear, and teacher also can keep the good state of mind to teach to the student.
Description of drawings
Fig. 1 is the structural representation of the utility model dust suction and ventilation blackboard.
The specific embodiment
According to shown in Figure 1, the utility model dust suction and ventilation blackboard comprise: traditional bulk blackboard 1 is with air-vent 2 around the blackboard 1.
Claims (1)
1. novel dust suction and ventilation blackboard, comprising: dust suction and ventilation blackboard is characterized in that: described traditional bulk blackboard (1) is with air-vent (2) around the blackboard (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220692873 CN203093474U (en) | 2012-12-15 | 2012-12-15 | Novel dust collection and ventilation blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220692873 CN203093474U (en) | 2012-12-15 | 2012-12-15 | Novel dust collection and ventilation blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203093474U true CN203093474U (en) | 2013-07-31 |
Family
ID=48844905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220692873 Expired - Fee Related CN203093474U (en) | 2012-12-15 | 2012-12-15 | Novel dust collection and ventilation blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203093474U (en) |
-
2012
- 2012-12-15 CN CN 201220692873 patent/CN203093474U/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: 20130731 Termination date: 20131215 |