CN201849155U - Blackboard - Google Patents
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- Publication number
- CN201849155U CN201849155U CN2010205990077U CN201020599007U CN201849155U CN 201849155 U CN201849155 U CN 201849155U CN 2010205990077 U CN2010205990077 U CN 2010205990077U CN 201020599007 U CN201020599007 U CN 201020599007U CN 201849155 U CN201849155 U CN 201849155U
- Authority
- CN
- China
- Prior art keywords
- blackboard
- shell
- blackboard body
- height
- bodies
- 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
A blackboard mainly comprises blackboard bodies. Tops of the two blackboard bodies are fixed at two ends of a connecting chain, the connecting chain is wound on two parallel pulleys, a rectangular blackboard eraser in the length equal to that of the blackboard body is arranged on the back of the front blackboard body, the pulleys are fixed at the top of a rectangular shell, and another rectangular blackboard eraser in the length the same with the blackboard body is arranged on the back of a front panel of the shell. The height of the front panel of the shell is at least equal to that of the blackboard bodies, and the height of a rear panel of the shell is at least twice of that of the blackboard bodies. Besides, an illuminating lamp is arranged at the bottom end of the front panel of the blackboard body. The blackboard has the advantages of reasonable structure, convenience in use, capabilities of saving labor and time and keeping sanitary and clean and the like.
Description
Technical field the utility model relates to a kind of teaching aid.
Very important in the teaching of a background technology school apparatus is exactly a blackboard, but wasted time and energy again after teacher has write the writing on the blackboard of a full blackboard blackboard is cleaned continues to teach again.And in the process that erases the board, chalk dust also can fly upward everywhere.Such blackboard had both reduced the learning efficiency in classroom, also the healthy of teacher and classmate was influenced to some extent.
The summary of the invention the purpose of this utility model provide a kind of rational in infrastructure, up and down the pulling can clean the blackboard of writing on the blackboard.
The utility model technical solution problem realizes by the following technical solutions:
A kind of blackboard mainly comprises the blackboard body.The top of two blackboard bodies is fixed on the two ends of connection chain, and the connection chain lash is on two parallel arbor wheels, and the back side of the blackboard body in the place ahead is provided with the rectangle blackboard eraser isometric with the blackboard body; Arbor wheel is fixed on the top of rectangle shell, and the header board back side of shell is provided with the rectangle blackboard eraser isometric with the blackboard body.The preceding plate height of shell equals the height of blackboard body at least, and the back plate height of shell is at least 2 times of blackboard body height.The header board bottom of blackboard body is provided with illuminating lamp.
During use, spur the blackboard body up and down, the blackboard eraser that the back side is provided with can easily be wiped the writing on the blackboard.And shell header board bottom is provided with illuminating lamp, can make the classmate see clearlyer.
Compared with the prior art, the beneficial effects of the utility model are: rational in infrastructure, easy to use, time saving and energy saving, hygiene.
Description of drawings Fig. 1 is a stereochemical structure sketch of the present utility model.
The specific embodiment is in stereochemical structure sketch of the present utility model shown in Figure 1, the top of two blackboard bodies 1 is fixed on the two ends of connection chain 2, the connection chain lash is on two parallel arbor wheels 3, and the back side of the blackboard body in the place ahead is provided with the rectangle blackboard eraser 4 isometric with the blackboard body; Arbor wheel is fixed on the top of rectangle shell 5, and the header board back side of shell is provided with the rectangle blackboard eraser isometric with the blackboard body.The preceding plate height of shell equals the height of blackboard body at least, and the back plate height of shell is at least 2 times of blackboard body height.The header board bottom of blackboard body is provided with illuminating lamp 6.
Claims (3)
1. blackboard, mainly comprise the blackboard body, it is characterized in that: the top of two blackboard bodies (1) is fixed on the two ends of connection chain (2), connection chain (2) lash is on parallel two arbor wheels (3), and the back side of the blackboard body (1) in the place ahead is provided with the rectangle blackboard eraser (4) isometric with blackboard body (1); Arbor wheel (3) is fixed on the top of rectangle shell (5), and the header board back side of shell (5) is provided with the rectangle blackboard eraser (4) isometric with blackboard body (1).
2. blackboard according to claim 1 is characterized in that: the preceding plate height of shell (5) equals the height of blackboard body (1) at least, and the back plate height of shell (5) is at least 2 times of blackboard body (1) height.
3. blackboard according to claim 1 is characterized in that: the header board bottom of blackboard body (1) is provided with illuminating lamp (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205990077U CN201849155U (en) | 2010-11-10 | 2010-11-10 | Blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205990077U CN201849155U (en) | 2010-11-10 | 2010-11-10 | Blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201849155U true CN201849155U (en) | 2011-06-01 |
Family
ID=44091566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205990077U Expired - Fee Related CN201849155U (en) | 2010-11-10 | 2010-11-10 | Blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201849155U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350905A (en) * | 2011-09-07 | 2012-02-15 | 金华职业技术学院 | Circulating self-erasing blackboard |
-
2010
- 2010-11-10 CN CN2010205990077U patent/CN201849155U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350905A (en) * | 2011-09-07 | 2012-02-15 | 金华职业技术学院 | Circulating self-erasing blackboard |
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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: 20110601 Termination date: 20111110 |