CN202986517U - Rolling blackboard - Google Patents
Rolling blackboard Download PDFInfo
- Publication number
- CN202986517U CN202986517U CN 201220556371 CN201220556371U CN202986517U CN 202986517 U CN202986517 U CN 202986517U CN 201220556371 CN201220556371 CN 201220556371 CN 201220556371 U CN201220556371 U CN 201220556371U CN 202986517 U CN202986517 U CN 202986517U
- Authority
- CN
- China
- Prior art keywords
- blackboard
- roller bearing
- rolling
- brush board
- 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
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Abstract
The utility model discloses a rolling blackboard which structurally comprises a blackboard, an upper rolling shaft, a lower rolling shaft and a brush plate. The blackboard can be used in rolling mode in circulation, and the brush plate can automatically remove existing chalk handwritings.
Description
Technical field
The utility model relates to a kind of blackboard, relates in particular to a kind of Rolling blackboard.
Background technology
Traditional blackboard is fixed, and can not roll, and causes in use on blackboard letter written with chalk must the teacher to be wiped with blackboard and clashes, and is very inconvenient.
Summary of the invention
For the deficiency of traditional blackboard, technical problem to be solved in the utility model is to provide a kind of Rolling blackboard, and it is easy to use, reasonable in design.
In order to solve above technical problem, the technical solution of the utility model is as follows:
A kind of Rolling blackboard, its structure comprise blackboard, upper roller bearing, lower roller bearing and brush board.Described blackboard is ring-band shape, is provided with liner plate between described upper roller bearing and described lower roller bearing, described liner plate be located at described blackboard below.
Described lower roller bearing and the spirit of described upper roller bearing energy and rolling, described blackboard is sleeved on described upper roller bearing and described lower roller bearing.
Described brush board be located at described blackboard below, described brush board is arranged on described liner plate, described blackboard passes between described liner plate and described brush board.
One side of described brush board and the outer surface of described blackboard are inconsistent.
The beneficial effects of the utility model are: blackboard can roll and recycle and brush board can be removed oneself old chalk automatically.
Description of drawings
Fig. 1 is the overall structure figure of the utility model embodiment.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, the utility model is comprised of blackboard 1, upper roller bearing 21, lower roller bearing 2 and brush board 3.Blackboard 1 is ring-band shape, is provided with liner plate between upper roller bearing 21 and lower roller bearing 2, liner plate be located at blackboard 1 below.
Lower roller bearing 2 and 21 energy spirit and the rollings of upper roller bearing, blackboard 1 is sleeved on roller bearing 21 and lower roller bearing 2.
Brush board 3 be located at blackboard 1 below, brush board 3 is arranged on liner plate, blackboard 1 passes between liner plate and brush board 3.
One side of brush board 3 and the outer surface of blackboard 1 are inconsistent.
The utility model is to use like this: so because there is the effect of liner plate to write letter written with chalk at the outer surface of blackboard, only need blackboard is moved up when needs plate change face, because blackboard can easily move under the effect of roller bearing, the original like this space of a whole page just moves to the reverse side of blackboard, and the new spacing space of a whole page moves on to the front; The old space of a whole page is known clean under the effect of brush board.
Claims (1)
1. Rolling blackboard, it is characterized in that: described Rolling blackboard comprises blackboard (1), upper roller bearing (21), lower roller bearing (2) and brush board (3); Described blackboard is ring-band shape, and described blackboard is enclosed within on described upper roller bearing (21) and described lower roller bearing (2); Described brush board (3) contacts with the outer surface of described blackboard (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220556371 CN202986517U (en) | 2012-10-29 | 2012-10-29 | Rolling blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220556371 CN202986517U (en) | 2012-10-29 | 2012-10-29 | Rolling blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202986517U true CN202986517U (en) | 2013-06-12 |
Family
ID=48557729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220556371 Expired - Fee Related CN202986517U (en) | 2012-10-29 | 2012-10-29 | Rolling blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202986517U (en) |
-
2012
- 2012-10-29 CN CN 201220556371 patent/CN202986517U/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: 20130612 Termination date: 20131029 |