CN204414961U - A kind of blackboard with ash-swabbing device - Google Patents
A kind of blackboard with ash-swabbing device Download PDFInfo
- Publication number
- CN204414961U CN204414961U CN201420854799.6U CN201420854799U CN204414961U CN 204414961 U CN204414961 U CN 204414961U CN 201420854799 U CN201420854799 U CN 201420854799U CN 204414961 U CN204414961 U CN 204414961U
- Authority
- CN
- China
- Prior art keywords
- blackboard
- ash
- brush board
- roller
- swabbing device
- 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
Links
Abstract
The utility model provides a kind of blackboard with ash-swabbing device, its structure simple, easy to use and save time in classroom, comprise blackboard, it is characterized in that: the surrounding around described blackboard is provided with frame, the frame of corresponding described blackboard upper end, lower end is connected with ash-swabbing device by retractor device, described ash-swabbing device comprises brush board, and the one side that described brush board contacts with described blackboard is provided with bristle, and the length of described brush board is consistent with the length of described blackboard.
Description
Technical field
The utility model relates to a kind of teaching equipment, especially a kind of blackboard with ash-swabbing device.
Background technology
In teaching, black board teaching is used till today always, existing blackboard utilizes blackboard brush to wipe clean after being finished one edition, existing blackboard eraser is generally hand-held small-sized blackboard eraser, and small-sized blackboard eraser hand-held like this relative to whole blackboard whole area very little, erasing the board wastes time and energy, particularly on the classroom of 40-45 minute, when a large amount of writing on the blackboard write by needs, repeatedly erase the board and occupy a large amount of valuable time in classroom, reduce efficiency of teaching.
Utility model content
For the problems referred to above, the utility model provides a kind of blackboard with ash-swabbing device, its structure simple, easy to use and save time in classroom.
The utility model solve its technical problem adopt technical scheme to be: a kind of blackboard with ash-swabbing device, comprise blackboard, it is characterized in that: the surrounding around described blackboard is provided with frame, the frame of corresponding described blackboard upper end, lower end is connected with ash-swabbing device by retractor device, described ash-swabbing device comprises brush board, the one side that described brush board contacts with described blackboard is provided with bristle, and the length of described brush board is consistent with the length of described blackboard.
Further, the one side that described brush board contacts with described blackboard is arranged at intervals with turning rolls, described turning rolls is provided with roller.
Further, described roller is arranged on the height of the setting of the height after on turning rolls lower than described bristle;
Further, the both sides of described brush board are respectively equipped with roller, and described blackboard both sides are provided with the slide rail mated with described roller.
Further, described retractor device is spring.
Further, described roller is provided with rubber layer.
The beneficial effects of the utility model are: blackboard of the present utility model, by the cooperation of retractor device, hairbrush, when needs erase the board chalk dust, directly can promote top hairbrush, bottom hairbrush carry out wiping ash, it is quite convenient to use, and adapts to due to the length of top hairbrush and bottom hairbrush and blackboard, only need to promote several lower can complete wipe grey, improve efficiency, save time in classroom.Because described top hairbrush and bottom hairbrush include brush board, the one side that brush board contacts with blackboard is provided with bristle, bristle be used for wiping chalk ash, its structure simple, easy to use and save time in classroom.
Accompanying drawing explanation
Fig. 1 is the structural representation of blackboard eraser apparatus for ash of the present utility model;
Fig. 2 is the structural representation of the bottom hairbrush of blackboard eraser apparatus for ash of the present utility model;
Fig. 3 is the another kind of structural representation of blackboard eraser apparatus for ash of the present utility model.
detailed description of the invention:
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
Embodiment one:
As shown in Figure 1 and Figure 2, a kind of blackboard with ash-swabbing device, comprise blackboard 1, surrounding around blackboard 1 is provided with frame 2, the frame 2 of corresponding blackboard 1 upper end, lower end is connected with ash-swabbing device by retractor device 3, ash-swabbing device comprises brush board 4, and the one side that brush board 4 contacts with blackboard 1 is provided with bristle 5, and the length of brush board 3 is consistent with the length of blackboard.
The one side that brush board 3 contacts with blackboard 1 is arranged at intervals with turning rolls 6, turning rolls 6 is provided with roller 7, roller 7 is arranged on the height of the setting of the height after on turning rolls 6 lower than bristle, and retractor device 3 is spring, and roller is provided with rubber layer.
Embodiment two:
See Fig. 3, a kind of blackboard with ash-swabbing device, comprise blackboard 1, surrounding around blackboard 1 is provided with frame 2, the frame 2 of corresponding blackboard 1 upper end, lower end is connected with ash-swabbing device by retractor device 3, ash-swabbing device comprises brush board 4, and the one side that brush board 4 contacts with blackboard 1 is provided with bristle 5, and the length of brush board 3 is consistent with the length of blackboard.
The both sides of brush board 3 are respectively equipped with roller 7, and blackboard 1 both sides are provided with the slide rail 8 mated with roller 7, and retractor device 3 is spring, and roller is provided with rubber layer.
When needs erase the board chalk dust, directly can promote ash-swabbing device and carry out wiping ash, it is quite convenient to use, and adapts to due to brush board 4 length with blackboard 1, only needs to promote that several lower can to complete wiping grey, improves efficiency, has saved time in classroom.
The one side that brush board 3 contacts with blackboard 1 is arranged at intervals with turning rolls 6, turning rolls 6 is provided with roller 7, roller 7 is arranged on the height of the setting of the height after on turning rolls 6 lower than bristle, and roller 7 blackboard 1 causes the damage of bristle 5 be out of shape for leading and preventing all bristles 5 to be pressed in energetically.
Also can be respectively equipped with roller 7 in the both sides of brush board 3, the frame of blackboard 1 both sides is provided with the slide rail 8 mated with roller 7, may be used for guiding equally and prevent all bristles 5 to be pressed in energetically blackboard 1 causing the damage of bristle 5 be out of shape.
Retractor device 3 is spring, draws materials conveniently, long service life.Certain described retractor device 3 adopts rubber band or other equality units to realize, but rubber band is easily aging, and the life-span is short; Other devices are as higher in costs such as dampers, therefore choose spring as preferably, can automatic retraction after upper retractor device 3 stretches out, and the space of a whole page that can not rest on blackboard 1 obstructs the view, quite convenient.
As preferably, described roller 7 comprises elastic caoutchouc and makes, and decreases the damage to blackboard 1.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. the blackboard with ash-swabbing device, comprise blackboard, it is characterized in that: the surrounding around described blackboard is provided with frame, the frame of corresponding described blackboard upper end, lower end is connected with ash-swabbing device by retractor device, described ash-swabbing device comprises brush board, the one side that described brush board contacts with described blackboard is provided with bristle, and the length of described brush board is consistent with the length of described blackboard.
2. a kind of blackboard with ash-swabbing device according to claim 1, is characterized in that: described retractor device is spring.
3. a kind of blackboard with ash-swabbing device according to claim 1, is characterized in that: the one side that described brush board contacts with described blackboard is arranged at intervals with turning rolls, described turning rolls is provided with roller.
4. a kind of blackboard with ash-swabbing device according to claim 3, is characterized in that: described roller is arranged on the height after on turning rolls and arranges height lower than described bristle.
5. a kind of blackboard with ash-swabbing device according to claim 3, is characterized in that: described roller is provided with rubber layer.
6. a kind of blackboard with ash-swabbing device according to claim 1, it is characterized in that: the both sides of described brush board are respectively equipped with roller, described blackboard both sides are provided with the slide rail mated with described roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420854799.6U CN204414961U (en) | 2014-12-30 | 2014-12-30 | A kind of blackboard with ash-swabbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420854799.6U CN204414961U (en) | 2014-12-30 | 2014-12-30 | A kind of blackboard with ash-swabbing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204414961U true CN204414961U (en) | 2015-06-24 |
Family
ID=53465361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420854799.6U Expired - Fee Related CN204414961U (en) | 2014-12-30 | 2014-12-30 | A kind of blackboard with ash-swabbing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204414961U (en) |
-
2014
- 2014-12-30 CN CN201420854799.6U patent/CN204414961U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20171230 |