CN201961051U - Dust-free blackboard eraser - Google Patents
Dust-free blackboard eraser Download PDFInfo
- Publication number
- CN201961051U CN201961051U CN2011200640160U CN201120064016U CN201961051U CN 201961051 U CN201961051 U CN 201961051U CN 2011200640160 U CN2011200640160 U CN 2011200640160U CN 201120064016 U CN201120064016 U CN 201120064016U CN 201961051 U CN201961051 U CN 201961051U
- Authority
- CN
- China
- Prior art keywords
- dust
- blackboard eraser
- chalk dust
- snag
- board
- 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 relates to a dust-free blackboard eraser, belonging to the field of a teaching aid. In the technical scheme, the dust-free blackboard eraser comprises an erasing board and erasing hair, the erasing board is provided with a plurality of through holes and also a chalk dust buffer box, the through holes are communicated with a chalk dust cavity of the chalk dust buffer box, the chalk dust cavity is communicated with a chalk dust collection box through a chalk dust channel, and the chalk dust channel is provided with a fan. The dust-free blackboard eraser has a simple structure and a reasonable design. By adopting the dust-free blackboard eraser, hidden safety risks of chalk dust collection to teachers can be reduced effectively.
Description
Technical field
The utility model relates to a kind of teaching aid, relates in particular to a kind of dust-free black board eraser.
Background technology
Usually the blackboard eraser that uses of teaching has only the function of removing chalk trace by friction, in use can cause dust from flying, causes stuffyly, brings potential safety hazard for teacher's health.
Summary of the invention
The utility model is at the existing in prior technology shortcoming, and a kind of dust-free black board eraser simple in structure, reasonable in design is provided.
The utility model is realized by following technical measures: a kind of dust-free black board eraser, it comprises wiping board, snag, also be provided with some through holes on the described wiping board, described wiping board also is provided with the dust buffer pocket, described through hole communicates with the dust chamber of dust buffer pocket, and described dust chamber is communicated with the dust collection box by the dust passage, on the described dust passage fan is installed.
Concrete characteristics of the present utility model also have, and above-mentioned through hole, snag all have plurality of rows, and described single through hole and single snag are arranged at interval.
The periphery of above-mentioned wiping board also is provided with wiper of rubber, and described through hole and snag all are positioned at dust ring.
Above-mentioned dust buffer pocket also has accumulator box.
The beneficial effects of the utility model are, it is reasonable in design, and is simple in structure, the shortcoming of dust from flying when having overcome existing blackboard eraser and using, and environmentally-friendly sanitary has reduced instructor's healthy hidden danger.
Description of drawings
Fig. 1 is the structural representation of the utility model specific embodiment.
Fig. 2 is the A-A cutaway view of Fig. 1.
Among the figure, 1, wiping board, 2, snag, 3, dust ring, 4, through hole, 5, the dust chamber, 6, accumulator box, 7, fan, 8, the dust collection box, 9, the dust buffer pocket, 10, the dust passage.
The specific embodiment
For clearly demonstrating the technical characterstic of this programme,, and, this programme is set forth in conjunction with its accompanying drawing below by a specific embodiment.
As shown in Figure 1 and Figure 2, the utility model is a kind of dust-free black board eraser, it comprises wiping board 1, snag 2, also be provided with some through holes 4 on the described wiping board 1, described wiping board 1 also is provided with dust buffer pocket 9, and described through hole 4 communicates with the dust chamber 5 of dust buffer pocket 9, described dust chamber 5 is communicated with dust collection box 8 by the dust passage, on the described dust passage fan 7 is installed.
Wherein, through hole 4, snag 2 all have plurality of rows, and described single through hole and single snag are arranged at interval.The periphery of wiping board 1 also is provided with wiper of rubber 3, and described through hole 4 and snag 2 all are positioned at dust ring 3.Dust buffer pocket 9 also has accumulator box 6.
The utility model can pass through existing techniques in realizing without the technical characterictic of describing, and does not repeat them here.Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present utility model also should belong to protection domain of the present utility model.
Claims (4)
1. dust-free black board eraser, it comprises wiping board, snag, it is characterized in that, also be provided with some through holes on the described wiping board, described wiping board also is provided with the dust buffer pocket, and described through hole communicates with the dust chamber of dust buffer pocket, described dust chamber is communicated with the dust collection box by the dust passage, on the described dust passage fan is installed.
2. dust-free black board eraser according to claim 1 is characterized in that described through hole, snag all have plurality of rows, and described single through hole and single snag are arranged at interval.
3. dust-free black board eraser according to claim 1 is characterized in that the periphery of described wiping board also is provided with wiper of rubber, and described through hole and snag all are positioned at dust ring.
4. according to claim 1 or 2 or 3 described dust-free black board erasers, it is characterized in that described dust buffer pocket also has accumulator box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200640160U CN201961051U (en) | 2011-03-14 | 2011-03-14 | Dust-free blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200640160U CN201961051U (en) | 2011-03-14 | 2011-03-14 | Dust-free blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201961051U true CN201961051U (en) | 2011-09-07 |
Family
ID=44523586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200640160U Expired - Fee Related CN201961051U (en) | 2011-03-14 | 2011-03-14 | Dust-free blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201961051U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111959167A (en) * | 2020-08-13 | 2020-11-20 | 安徽信息工程学院 | Blackboard eraser structure |
-
2011
- 2011-03-14 CN CN2011200640160U patent/CN201961051U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111959167A (en) * | 2020-08-13 | 2020-11-20 | 安徽信息工程学院 | Blackboard eraser structure |
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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: 20120314 |