CN2597210Y - Rolling-type self-wiping blackboard - Google Patents
Rolling-type self-wiping blackboard Download PDFInfo
- Publication number
- CN2597210Y CN2597210Y CNU022940189U CN02294018U CN2597210Y CN 2597210 Y CN2597210 Y CN 2597210Y CN U022940189 U CNU022940189 U CN U022940189U CN 02294018 U CN02294018 U CN 02294018U CN 2597210 Y CN2597210 Y CN 2597210Y
- Authority
- CN
- China
- Prior art keywords
- blackboard
- fixed
- eraser
- utility
- model
- 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 rolling self-rub blackboard, which comprises a blackboard, an eraser and a transmission device. The utility model is characterized in that: the blackboard has a scaleboard with a smooth board, the two ends of the scaleboard are fixed at the rotational frame axis; the blackboard is made up of the soft material, the blackboard is connected with the corresponding edge to form a barrel, the barrel-shaped blackboard is sleeved with the outside of the scaleboard and frame axis, and can turn with the frame axis; the eraser is fixed between the pair of the frames which are not the frame axis at the back of the blackboard. The utility model has the beneficial effects of that: after the classroom installing the blackboard, the writing on the blackboard can be erased with the turning of the blackboard by the erase at the back of the blackboard, and at the same time, the chalk powder can be collected, so as to avoid the powder flying, which effectively solves the problem of the powder pollution, and can save the time and the physical force.
Description
Technical field
The utility model relates to the classroom blackboard, particularly a kind of roller automatic erasing blackboard.
Background technology
In the existing school and college of China, what teacher taught the most generally use in the classroom remains blackboard and chalk.Because blackboard and chalk can produce a large amount of dust in erasable process, to the healthy adverse influence that all produced of teacher and student, thereby need be resolved.
The utility model content
The purpose of this utility model is that a kind of roller automatic erasing blackboard is provided in order to overcome the deficiencies in the prior art, and this roller automatic erasing blackboard can forward the blackboard surface of writing word to the back side of blackboard, wipes while changeing, and has avoided dust from flying, also can save time.
The technical scheme that its technical problem that solves the utility model adopts is a kind of roller automatic erasing blackboard of design.It comprises blackboard, blackboard eraser and transmission mechanism.It is characterized in that said blackboard has the liner plate of a surface smoothing, be fixed with rotating frame axle at the two ends of liner plate; Said blackboard is that soft material is made, and blackboard links to each other at the two opposite edges place, is connected into barrel-shapedly, and barrel-shaped blackboard is wrapped in outside aforementioned liner plate and the frame axle, and can rotate with the frame axle; Said blackboard eraser is fixed in another of non-frame axle at the blackboard back side between the frame.
The beneficial effects of the utility model are: after this blackboard is installed in the classroom, writing on the blackboard can be with the rotation of blackboard in the back of blackboard by the blackboard eraser wiped clean, and the chalk powder under wiping simultaneously can be collected, avoided dust from flying, efficiently solve the classroom dust pollution question, also saved teacher's time and muscle power.
Be described in detail with reference to accompanying drawing below with reference to embodiment of the present utility model.
Description of drawings
Fig. 1 roller automatic erasing blackboard front view;
Fig. 2 roller automatic erasing blackboard vertical view.
The specific embodiment
Roller automatic erasing blackboard of the present utility model, by blackboard 2, blackboard eraser 1 and transmission mechanism 3 are formed.Wherein there is the liner plate 4 of a surface smoothing blackboard inside, is fixed with rotating frame axle 5 at the two ends of liner plate.Blackboard is made of soft material, and two vertical frames of blackboard are equipped with rotating frame axle, and blackboard eraser is fixed between the upper and lower side frame at the blackboard back side.And barrel-shaped blackboard is wrapped in outside liner plate and the frame axle, and can rotate with the frame axle.
Claims (2)
1 one kinds of roller automatic erasing blackboards comprise blackboard, and blackboard eraser and transmission mechanism is characterized in that said blackboard has the liner plate of a surface smoothing, are fixed with rotating frame axle at the two ends of liner plate; Said blackboard is that soft material is made, and blackboard links to each other at the two opposite edges place, is connected into barrel-shapedly, and barrel-shaped blackboard is wrapped in outside aforementioned liner plate and the frame axle, and can rotate with the frame axle; Said blackboard eraser is fixed in another of non-frame axle at the blackboard back side between the frame.
2 according to the described roller automatic erasing blackboard of claim 1, it is characterized in that two vertical frames of said blackboard are equipped with rotating frame axle, and blackboard eraser is fixed between the upper and lower side frame of blackboard quilt cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU022940189U CN2597210Y (en) | 2002-12-25 | 2002-12-25 | Rolling-type self-wiping blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU022940189U CN2597210Y (en) | 2002-12-25 | 2002-12-25 | Rolling-type self-wiping blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2597210Y true CN2597210Y (en) | 2004-01-07 |
Family
ID=34151888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU022940189U Expired - Fee Related CN2597210Y (en) | 2002-12-25 | 2002-12-25 | Rolling-type self-wiping blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2597210Y (en) |
-
2002
- 2002-12-25 CN CNU022940189U patent/CN2597210Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |