CN201195456Y - Blackboard eraser - Google Patents
Blackboard eraser Download PDFInfo
- Publication number
- CN201195456Y CN201195456Y CNU2008200208974U CN200820020897U CN201195456Y CN 201195456 Y CN201195456 Y CN 201195456Y CN U2008200208974 U CNU2008200208974 U CN U2008200208974U CN 200820020897 U CN200820020897 U CN 200820020897U CN 201195456 Y CN201195456 Y CN 201195456Y
- Authority
- CN
- China
- Prior art keywords
- blackboard eraser
- bottom plate
- base plate
- fixed
- utility
- 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
Links
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a teaching appliance, and particularly discloses a blackboard eraser. The blackboard eraser comprises a bottom plate, a brush fixed on the top end of the bottom plate, and a switch. The blackboard eraser is characterized in that the bottom plate is a hollow cuboid, a miniature electric fan is fixed in a cavity of the bottom plate, and the switch is fixed at the lateral face of the bottom plate. The utility model has the advantages that the blackboard eraser is simple in structure and convenient in use, efficiently avoids raising chalk dust, protects the environment, and plays an important role in maintaining the health of teachers and students.
Description
(1) technical field
The utility model relates to a kind of teaching aid, particularly a kind of blackboard eraser.
(2) background technology
At present the blackboard eraser that generally uses of school is that snag directly is fixed on the plank, not only requires great effort during use but also chalk dust is flown upward, and not only influences environment, and teachers and students healthy caused no small negative effect.
(3) summary of the invention
The utility model provides a kind of blackboard eraser easy to use in order to remedy the deficiencies in the prior art.
The utility model is achieved by the following technical solution:
A kind of blackboard eraser comprises base plate, is fixed on snag, the switch on base plate top, and it is characterized in that: described base plate is the cuboid of hollow, is fixed with mini fan in the base plate cavity; The base plate side is fixed with switch, and the base plate top has aperture.
The beneficial effects of the utility model: simple in structure, easy to use, the situation of effectively having avoided chalk dust to fly upward, the protection environment has healthyly played good effect for what safeguard teachers and students.
(4) description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing is a structural representation of the present utility model.
Among the figure, 1 snag, 2 base plates, 3 mini fans, 4 switches.
(5) specific embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.This embodiment comprises base plate 2, is fixed on the snag 1 on base plate 2 tops, switch 4, and base plate 2 is the cuboid of hollow, is fixed with mini fan 3 in base plate 2 cavitys; Base plate 2 sides are fixed with switch 4, and base plate 2 tops have aperture.Mini fan 3 makes when opening and produces negative pressure in the cavity of base plate 2, chalk dust and float in the cavity phenomenon of effectively having avoided chalk dust to fly upward automatically.
Claims (1)
1. blackboard eraser comprises base plate (2), is fixed on snag (1), the switch (4) on base plate (2) top, and it is characterized in that: described base plate (2) is the cuboid of hollow, is fixed with mini fan (3) in base plate (2) cavity; Base plate (2) side is fixed with switch (4); Base plate (2) top has aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200208974U CN201195456Y (en) | 2008-04-22 | 2008-04-22 | Blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200208974U CN201195456Y (en) | 2008-04-22 | 2008-04-22 | Blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201195456Y true CN201195456Y (en) | 2009-02-18 |
Family
ID=40415093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200208974U Expired - Fee Related CN201195456Y (en) | 2008-04-22 | 2008-04-22 | Blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201195456Y (en) |
-
2008
- 2008-04-22 CN CNU2008200208974U patent/CN201195456Y/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: 20090218 Termination date: 20100422 |