CN201494190U - Blackboard eraser - Google Patents
Blackboard eraser Download PDFInfo
- Publication number
- CN201494190U CN201494190U CN2009202028631U CN200920202863U CN201494190U CN 201494190 U CN201494190 U CN 201494190U CN 2009202028631 U CN2009202028631 U CN 2009202028631U CN 200920202863 U CN200920202863 U CN 200920202863U CN 201494190 U CN201494190 U CN 201494190U
- Authority
- CN
- China
- Prior art keywords
- blackboard eraser
- handle
- bases
- rod
- blackboard
- 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 relates to a blackboard eraser, which comprises three isometric cylindrical bases and eraser heads fixed connected the bottom of each of the bases, wherein the upper surface of each of the bases is connected with a bent rod body through a shaft, the tail end of each rod body is fixedly connected with one end of a handle which is a extendable structure, and the extension position of the handle is fixedly through a fastener. The blackboard eraser has simple structure, reasonable formation, convenience and practicality. Besides, compared with general blackboard erasers, the blackboard eraser saves time and labor, has low cost and long service life, and is more convenient for short students.
Description
Technical field the utility model relates to a kind of teaching aid, especially a kind of blackboard eraser.
The background technology blackboard eraser is one of frequent teaching aid that uses of school, blackboard eraser is varied now, but still exist deficiency, for example: present blackboard eraser all is one and wipes head, this has just reduced the service life of blackboard eraser, and present blackboard eraser uses, and very effort has caused very big inconvenience especially for some shorter little students.
The summary of the invention the purpose of this utility model provides a kind of blackboard eraser, is used to solve above-mentioned said deficiency.
For achieving the above object, the utility model blackboard eraser, comprise three grades big the affixed wiping head of column type base and each base bottom, upper surface at each base passes through an axle connecting-rod body, the body of rod is bending, one end of the end of each body of rod and handle is affixed, and handle is a stretching structure, and its telescopic location utilization card cuts down fixing.
After adopting said structure, during use, because handle is a stretching structure, the student can be according to the very high adjustment decreased food of self, and it is fixing to utilize card to cut down, blackboard wiping; Owing to there are three to wipe heads, increase the wiping area, one or two damages still can be used, and this has just increased the service life of blackboard eraser; Because the upper surface of base is by the axle connecting-rod body, in the blackboard wiping process, base is free to rotate, and is time saving and energy saving, makes things convenient for user's use.
Compared with the prior art, the beneficial effects of the utility model are: simple in structure, structure is reasonable, convenient and practical, operation rationally, time saving and energy saving, cost is low, long service life, convenient short student uses.
Description of drawings Fig. 1 is the utility model overall structure schematic diagram.
Number in the figure: 1 is that base, 2 is that wiping head, 3 is that the body of rod, 4 is that handle, 5 is to block to cut down.
The specific embodiment as shown in Figure 1, the utility model blackboard eraser, comprise three grades big the affixed wiping of column type base 1 and each base bottom 2, upper surface at each base 1 passes through an axle connecting-rod body 3, the body of rod 3 is bending, one end of the end of each body of rod 3 and handle 4 is affixed, and handle 4 is a stretching structure, and its telescopic location utilization card cuts down 5 and fixes.
Claims (1)
1. blackboard eraser, comprise three grades big the affixed wiping head (2) of column type base (1) and each base bottom, it is characterized in that: the upper surface at each base (1) passes through an axle connecting-rod body (3), the body of rod (3) is bending, one end of end of each body of rod (3) and handle (4) is affixed, handle (4) is a stretching structure, and it is fixing that its telescopic location utilization card cuts down (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202028631U CN201494190U (en) | 2009-08-28 | 2009-08-28 | Blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202028631U CN201494190U (en) | 2009-08-28 | 2009-08-28 | Blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201494190U true CN201494190U (en) | 2010-06-02 |
Family
ID=42437398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202028631U Expired - Fee Related CN201494190U (en) | 2009-08-28 | 2009-08-28 | Blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201494190U (en) |
-
2009
- 2009-08-28 CN CN2009202028631U patent/CN201494190U/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: 20100602 Termination date: 20100828 |