CN201456752U - blackboard - Google Patents
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- Publication number
- CN201456752U CN201456752U CN2009200741107U CN200920074110U CN201456752U CN 201456752 U CN201456752 U CN 201456752U CN 2009200741107 U CN2009200741107 U CN 2009200741107U CN 200920074110 U CN200920074110 U CN 200920074110U CN 201456752 U CN201456752 U CN 201456752U
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- CN
- China
- Prior art keywords
- blackboard
- windshield wiper
- electric windshield
- 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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Abstract
The utility model discloses a blackboard, which comprises a prior blackboard, wherein electric windscreen wipers are mounted on the upper edge and the lower edge of the prior blackboard; and rubber brush surfaces of the electric windscreen wipers are replaced by woollen brush surfaces. The blackboard in the utility model has the advantage that handwritings on the blackboard can be electrically and quickly wiped off, thereby lessening the hard work of teachers and improving the efficiency of classes.
Description
Technical field
The utility model belongs to the teaching facilities technical field, relates to a kind of blackboard particularly.
Background technology
Blackboard is maximum facility of using in the classroom instruction process.The teacher gives the student by writing on the blackboard on blackboard with various knowledge-transferences.In the teaching process, the teacher needs with blackboard eraser the content on the blackboard to be wiped usually after the knowledge of having said on the blackboard, and then writes new content, and this has taken teacher's plenty of time, and has also increased the arduous of teacher.If have a kind of once can be all right the good blackboard of blackboard eraser by switch.
The utility model content
Technical problem to be solved in the utility model provide a kind of can the electronic blackboard of wiping writing on the blackboard fast, to overcome the deficiency that prior art exists.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of blackboard comprises existing blackboard, it is characterized in that, in the upper edge and the lower edge of existing blackboard electric windshield wiper is installed, and the rubber brush finish of described electric windshield wiper is replaced by the wool brush finish.
Described electric windshield wiper has four, two of upper edges, two of lower edges.
The length to height ratio of described existing blackboard is 2: 1, and the length of electric windshield wiper equals the height of blackboard.
Described electric windshield wiper has remote control switch.
Described wool brush finish is installed on the electric windshield wiper by dismountable structure.
More than be exactly blackboard of the present utility model, this blackboard is compared existing blackboard, and the electric windshield wiper that adopts the wool brush finish has been installed.Like this, utilize electric windshield wiper to erase the board, teacher can be freed from the work that erases the board, alleviated the arduous of teacher, improved the efficient in classroom.Therefore, blackboard of the present utility model has the electronic advantage of wiping writing on the blackboard fast.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described:
Fig. 1 is a structural representation of the present utility model.
Among the figure:
100, blackboard 201,202,203,204, electric windshield wiper
The specific embodiment
As shown in Figure 1, blackboard of the present utility model, comprise existing blackboard 100, the length to height ratio that should have blackboard 100 now is 2: 1. improvements of the present utility model are, in these existing blackboard 100 upper edges, the lower edge is installed two electric windshield wipers 201 respectively, 202,203,204, totally four electric windshield wipers, two of the upper edge electric windshield wipers 201 wherein, 202 are installed in left end and centre position respectively, two electric windshield wipers 203 of lower edge, 204 are installed in centre position and right-hand member respectively, such layout can guarantee that the monoblock blackboard can both be clipped. different with common electric windshield wiper, in order to wipe letter written with chalk, the electric windshield wiper 201 here, 202,203,204 what install is not the rubber brush finish, but wool brush finish. and for can be regularly to wool brush finish clean, the wool brush finish is installed on the electric windshield wiper by dismountable structure.
In order can conveniently to control electric windshield wiper, the switch of electric windshield wiper adopts remote control switch.
Here it is blackboard of the present utility model, this blackboard is compared existing blackboard, and the electric windshield wiper that adopts the wool brush finish has been installed.Like this, utilize electric windshield wiper to erase the board, teacher can be freed from the work that erases the board, alleviated the arduous of teacher, improved the efficient in classroom.
But, those skilled in the art will recognize that, the above-mentioned specific embodiment is exemplary, be in order better to make those skilled in the art can understand this patent, can not be interpreted as it is the restriction that this patent is comprised scope, so long as according to spirit that this patent discloses done anyly be equal to change or modify, all fall into the scope that this patent comprises.
Claims (5)
1. a blackboard comprises existing blackboard, it is characterized in that, in the upper edge and the lower edge of existing blackboard electric windshield wiper is installed, and the rubber brush finish of described electric windshield wiper is replaced by the wool brush finish.
2. blackboard according to claim 1 is characterized in that: described electric windshield wiper has four, two of upper edges, two of lower edges.
3. blackboard according to claim 2 is characterized in that: the length to height ratio of described existing blackboard is 2: 1, and the length of electric windshield wiper equals the height of blackboard.
4. according to the described blackboard of the arbitrary claim of claim 1 to 3, it is characterized in that: described electric windshield wiper has remote control switch.
5. blackboard according to claim 1 is characterized in that: described wool brush finish is installed on the electric windshield wiper by dismountable structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200741107U CN201456752U (en) | 2009-06-18 | 2009-06-18 | blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200741107U CN201456752U (en) | 2009-06-18 | 2009-06-18 | blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201456752U true CN201456752U (en) | 2010-05-12 |
Family
ID=42384105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200741107U Expired - Fee Related CN201456752U (en) | 2009-06-18 | 2009-06-18 | blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201456752U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241220A (en) * | 2010-12-29 | 2011-11-16 | 上海市浦东新区惠南第二小学 | Automatic blackboard eraser |
| CN104972806A (en) * | 2014-04-04 | 2015-10-14 | 杜倩旖 | White board electric wiper |
| CN105711302A (en) * | 2014-11-30 | 2016-06-29 | 陈伟群 | Simple and convenient blackboard |
-
2009
- 2009-06-18 CN CN2009200741107U patent/CN201456752U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241220A (en) * | 2010-12-29 | 2011-11-16 | 上海市浦东新区惠南第二小学 | Automatic blackboard eraser |
| CN104972806A (en) * | 2014-04-04 | 2015-10-14 | 杜倩旖 | White board electric wiper |
| CN105711302A (en) * | 2014-11-30 | 2016-06-29 | 陈伟群 | Simple and convenient 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: 20100512 Termination date: 20100618 |