CN203460592U - Dust-removal blackboard eraser - Google Patents
Dust-removal blackboard eraser Download PDFInfo
- Publication number
- CN203460592U CN203460592U CN201320578269.9U CN201320578269U CN203460592U CN 203460592 U CN203460592 U CN 203460592U CN 201320578269 U CN201320578269 U CN 201320578269U CN 203460592 U CN203460592 U CN 203460592U
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- Prior art keywords
- dust
- blackboard eraser
- model
- utility
- housing
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- Expired - Fee Related
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Abstract
The utility model provides a dust-removal blackboard eraser. The dust-removal blackboard eraser comprises a housing, wherein a dust removal hole is formed in the bottom of the housing; a seal cover is arranged outside the dust removal hole; a positioning column is fixed in the center in the housing; a turntable is mounted on the positioning column; a plurality of fan-shaped brushes are uniformly and circumferentially distributed on the turntable; a plurality of groups of balls are uniformly and circumferentially mounted on the upper surface of the housing. The dust-removal blackboard eraser has the advantages of reasonable structure, low manufacture cost and convenience in operation, can remove dust when used for cleaning a blackboard, and is convenient to clean.
Description
Technical field
The utility model relates to a kind of blackboard eraser, is specifically related to a kind of dust-removing blackboard eraser.
Background technology
The blackboard eraser that teaching is used does not at present have the function of dust elimination mostly, during use, because dust cannot be eliminated, causes chalk dust to fly upward aloft, is easy to the inspiration by teachers and students, affects the healthy of teachers and students.Understanding learns had many various dust-removing blackboard erasers to be designed, but because volume is large, complex structure, the reasons such as inconvenience can not get promoting always.The blackboard eraser in order to allow with dedusting function is used widely, a kind of dust-removing blackboard eraser of ad hoc meter.
Summary of the invention
Technical problem to be solved in the utility model has been to provide a kind of dust-removing blackboard eraser that can extensively be promoted.
Technical problem to be solved in the utility model realizes by the following technical solutions:
A kind of dust-removing blackboard eraser, comprise shell, described outer casing bottom is provided with dedusting hole, outside described dedusting hole, be provided with seal cover, described enclosure center is fixed with locating dowel, in described locating dowel, rotating disk is installed, is circumferentially evenly equipped with a plurality of fan-shaped hairbrush on described rotating disk, described upper surface of outer cover is circumferentially evenly provided with many group balls.
Angle between the border of each described fan-shaped hairbrush is 10 °.
Described ball set number is no less than 3, and the quantity of every group is no less than 2.
The beneficial effects of the utility model are: the utlity model has rational in infrastructure, low cost of manufacture, easy to operate advantage, can realize the dedusting work while erasing the board, and self cleaning is convenient.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is front view of the present utility model;
Fig. 2 is top view of the present utility model.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As depicted in figs. 1 and 2, a kind of dust-removing blackboard eraser, comprise shell 1, described shell 1 bottom is provided with dedusting hole 2, described dedusting hole 2 is outer is provided with seal cover 3, and described shell 1 inside center place is fixed with locating dowel 4, in described locating dowel 4, rotating disk 5 is installed, on described rotating disk 5, be circumferentially evenly equipped with a plurality of fan-shaped hairbrush 6, described shell 1 upper surface is circumferentially evenly provided with many group balls 7.
Angle between the border of each described fan-shaped hairbrush 6 is 10 °.
Described 7 groups of numbers of ball are no less than 3, and the quantity of every group is no less than 2.
During use, hand-held housing, hairbrush is pressed on blackboard, and mobile, when mobile, ball plays the effect of supporting and reducing resistance, and rotating disk is also rotating simultaneously, and the chalk dust clashing falls into the space along between each fan-shaped hairbrush in housing, but when chalk dust is many, can be removed by dedusting hole and seal cover.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a dust-removing blackboard eraser, comprise shell, described outer casing bottom is provided with dedusting hole, outside described dedusting hole, be provided with seal cover, it is characterized in that: described enclosure center is fixed with locating dowel, in described locating dowel, rotating disk is installed, is circumferentially evenly equipped with a plurality of fan-shaped hairbrush on described rotating disk, described upper surface of outer cover is circumferentially evenly provided with many group balls.
2. a kind of dust-removing blackboard eraser according to claim 1, is characterized in that: the angle between the border of each described fan-shaped hairbrush is 10 °.
3. a kind of dust-removing blackboard eraser according to claim 1, is characterized in that: described ball set number is no less than 3, and the quantity of every group is no less than 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320578269.9U CN203460592U (en) | 2013-09-18 | 2013-09-18 | Dust-removal blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320578269.9U CN203460592U (en) | 2013-09-18 | 2013-09-18 | Dust-removal blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203460592U true CN203460592U (en) | 2014-03-05 |
Family
ID=50172976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320578269.9U Expired - Fee Related CN203460592U (en) | 2013-09-18 | 2013-09-18 | Dust-removal blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203460592U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105346314A (en) * | 2015-11-19 | 2016-02-24 | 四川省华蓥市第一中学 | Dustproof blackboard eraser |
| CN106515284A (en) * | 2016-11-16 | 2017-03-22 | 广西大学 | Efficient dust adsorption blackboard eraser |
-
2013
- 2013-09-18 CN CN201320578269.9U patent/CN203460592U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105346314A (en) * | 2015-11-19 | 2016-02-24 | 四川省华蓥市第一中学 | Dustproof blackboard eraser |
| CN106515284A (en) * | 2016-11-16 | 2017-03-22 | 广西大学 | Efficient dust adsorption blackboard eraser |
| CN106515284B (en) * | 2016-11-16 | 2018-05-11 | 海门黄海创业园服务有限公司 | A kind of efficient powder-sucking eraser for blackboard |
| CN108466509A (en) * | 2016-11-16 | 2018-08-31 | 陈伟民 | A kind of blackboard eraser |
| CN108859526A (en) * | 2016-11-16 | 2018-11-23 | 吴丽清 | A kind of method of dust suction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20140918 |
|
| EXPY | Termination of patent right or utility model |