CN204712750U - A kind of dust-collecting eraser for blackboard - Google Patents
A kind of dust-collecting eraser for blackboard Download PDFInfo
- Publication number
- CN204712750U CN204712750U CN201520441748.5U CN201520441748U CN204712750U CN 204712750 U CN204712750 U CN 204712750U CN 201520441748 U CN201520441748 U CN 201520441748U CN 204712750 U CN204712750 U CN 204712750U
- Authority
- CN
- China
- Prior art keywords
- box
- dust
- blackboard
- connecting plate
- air inlet
- 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 kind of dust-collecting eraser for blackboard, it comprises establishes handled blackboard eraser; The both sides of described blackboard eraser are respectively equipped with hollow air inlet box; Connecting plate is provided with above described air inlet box; The dust-absorbing box and holding box that are interconnected is provided with above described connecting plate; Be provided with lithium battery and switch above described dust-absorbing box, inside is provided with air-introduced machine; Described holding box is provided with the steam vent of band filter screen; Described air inlet box is connected with dust-absorbing box; Described dust-absorbing box and holding box are arranged on connecting plate respectively by chute.The utility model efficiently solves the technical problem that there is chalk powder harm SH time prior art erases the board.
Description
technical fieldthe utility model belongs to teaching aid technical field, relates to a kind of dust-collecting eraser for blackboard.
background technologythe structure of prior art blackboard eraser comprises ellipse or rectangular base, described base is provided with the wiping thing that the vestige of letter written with chalk on blackboard can be removed by hairbrush or spongy layer etc., the blackboard eraser of this structure facilitates durable, use is had in the school of China various places, but when in use, the chalk powder rubbed dances in the air all over the sky, the physical and mental health of serious harm student.
summary of the inventionthe purpose of this utility model solves the technical problem that there is chalk powder health risk when prior art erases the board, and provides a kind of dust-collecting eraser for blackboard device, to overcome the deficiencies in the prior art.
To achieve these goals, a kind of dust-collecting eraser for blackboard of the utility model, it comprises establishes handled blackboard eraser; Its main points are that the both sides of described blackboard eraser are respectively equipped with hollow air inlet box; Connecting plate is provided with above described air inlet box; The dust-absorbing box and holding box that are interconnected is provided with above described connecting plate; Be provided with lithium battery and switch above described dust-absorbing box, inside is provided with air-introduced machine; Described holding box is provided with the steam vent of band filter screen; Described air inlet box is connected with dust-absorbing box; Described dust-absorbing box and holding box are arranged on connecting plate respectively by chute, so that can fast assembling-disassembling on connecting plate.
As further improvement, in described handle, be provided with expansion link, after expansion link is extracted out, can expansion link be held, blackboard eminence is rubbed.
The injection mo(u)lding respectively of described dust-absorbing box, holding box, connecting plate and air inlet box.
In order to extend the service life of blackboard eraser, the rubbers such as the hairbrush on described blackboard eraser or foam-rubber cushion can be changed.
The utility model reasonable in design, easy to use, the chalk powder wiped is driven by air-introduced machine, concentrates in holding box, efficiently solves the technical problem that there is chalk powder harm SH when prior art erases the board.
accompanying drawing explanationaccompanying drawing is the utility model structural representation.
In figure 1, dust-absorbing box 2, lithium battery 3, switch 4, filter screen 5, holding box 6, air inlet box 7, handle 8, blackboard eraser 9, connecting plate
detailed description of the inventionwith reference to the accompanying drawings, a kind of dust-collecting eraser for blackboard of the utility model, it comprises establishes handled blackboard eraser 8; The both sides of described blackboard eraser are respectively equipped with hollow air inlet box; Connecting plate is provided with above described air inlet box; The dust-absorbing box and holding box that are interconnected is provided with above described connecting plate; Be provided with lithium battery and switch above described dust-absorbing box, inside is provided with air-introduced machine; Described holding box is provided with the steam vent of band filter screen; Described air inlet box is connected with dust-absorbing box; Described dust-absorbing box and holding box are arranged on connecting plate respectively by chute.
During use, opening switch, puts in hand in the gap of two air inlet boxes, and handle of holding with a firm grip can erase the board, and the chalk powder wiped is drawn onto in holding box by the air-introduced machine in dust-absorbing box through air inlet box.The utility model periodic charge and cleaning holding box, efficiently solve when prior art erases the board and there is the able-bodied technical problem of chalk powder harm student.
Claims (3)
1. a kind of dust-collecting eraser for blackboard of the utility model, it comprises establishes handled blackboard eraser; It is characterized in that the both sides of described blackboard eraser are respectively equipped with hollow air inlet box; Connecting plate is provided with above described air inlet box; The dust-absorbing box and holding box that are interconnected is provided with above described connecting plate; Be provided with lithium battery and switch above described dust-absorbing box, inside is provided with air-introduced machine; Described holding box is provided with the steam vent of band filter screen; Described air inlet box is connected with dust-absorbing box; Described dust-absorbing box and holding box are arranged on connecting plate respectively by chute.
2. a kind of dust-collecting eraser for blackboard according to claim 1, is characterized in that being provided with expansion link in described handle.
3. a kind of dust-collecting eraser for blackboard according to claim 1, is characterized in that the injection mo(u)lding respectively of described dust-absorbing box, holding box, connecting plate and air inlet box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520441748.5U CN204712750U (en) | 2015-06-25 | 2015-06-25 | A kind of dust-collecting eraser for blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520441748.5U CN204712750U (en) | 2015-06-25 | 2015-06-25 | A kind of dust-collecting eraser for blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204712750U true CN204712750U (en) | 2015-10-21 |
Family
ID=54311775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520441748.5U Expired - Fee Related CN204712750U (en) | 2015-06-25 | 2015-06-25 | A kind of dust-collecting eraser for blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204712750U (en) |
-
2015
- 2015-06-25 CN CN201520441748.5U patent/CN204712750U/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: 20151021 Termination date: 20160625 |