CN201099112Y - Dust-absorbing blackboard eraser - Google Patents
Dust-absorbing blackboard eraser Download PDFInfo
- Publication number
- CN201099112Y CN201099112Y CNU2007200866476U CN200720086647U CN201099112Y CN 201099112 Y CN201099112 Y CN 201099112Y CN U2007200866476 U CNU2007200866476 U CN U2007200866476U CN 200720086647 U CN200720086647 U CN 200720086647U CN 201099112 Y CN201099112 Y CN 201099112Y
- Authority
- CN
- China
- Prior art keywords
- dust
- blackboard eraser
- collecting
- eraser body
- collecting blackboard
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a dust-collecting blackboard eraser for cleaning a blackboard during teaching in a classroom, which comprises a dust-collecting blackboard eraser body and an erasing fabric. The utility model is characterized in that the dust-collecting blackboard eraser body is provided inside with a power source, a motor and impellers, the erasing fabric is provided thereon with dust-collecting holes that communicate with the inner cavity of the dust-collecting blackboard eraser body, and the dust-collecting blackboard eraser body has a shell with air holes and a filter screen. When in use, the power source is switched on to drive the motor to rotate the impellers, the wind produced by the impellers flows through the air holes to the dust-collecting holes of the erasing fabric, where an inward air flow is formed to suck chalk dust into the dust-collecting blackboard eraser body, the chalk dust flows through the filtering screen and falls into a dust-collecting box inside the dust-collecting blackboard eraser body. The dust-collecting blackboard eraser has the advantages of simple structure and easy use, and helps provide a clean and healthy environment for teaching and learning.
Description
Technical field
The utility model is a kind of dust absorption blackboard eraser that uses when being used for erasing the board on the teaching classroom.
Background technology
The blackboard eraser that uses can only be wiped chalk dust at present, does not have the function of dust suction, particularly when using electric fan in the classroom summer, chalk dust flies upward everywhere in the whole classroom, and academics and students capital in various degree is from the nostril and suck chalk dust in the mouth, has a strong impact on teachers and students' physical and mental health like this.
Summary of the invention
Purpose of the present invention: be exactly to provide a kind of environmental protection, health, safety, abundant dust suction and blackboard eraser easy to use to teachers and students.
The goal of the invention of utility model is achieved in that a kind of dust absorption blackboard eraser, it is made up of dust absorption blackboard eraser, wiper etc., it is characterized in that the dust absorption blackboard eraser internal electric source, motor and impeller, air suction opening on the wiper communicates with the dust absorption blackboard eraser inner chamber, and dust-absorbing blackboard has smeared passage and filter screen.During use, connect power supply, the driven by motor wheel rotation, impeller inwardly produces wind motion and flows out from passage, air suction opening place at wiper produces inside air-flow, wiper is wiped chalk dust down suck in the dust absorption blackboard eraser, chalk dust is through the obstruction of filter screen, falls in the interior dust box of dust absorption blackboard eraser to reach the dust suction purpose.The utility model is simple in structure, and is easy to use, and the teaching environment of an environmental protection, health can be provided to teachers and students.
Description of drawings
Accompanying drawing 1 is a schematic diagram of the present utility model
Accompanying drawing 2 is that generalized section is looked on the left side of accompanying drawing 1
The specific embodiment
In the accompanying drawing 1, fixing wiper 4 and power switch 2 on the dust absorption blackboard eraser 1, several air suction openings 3 are being arranged on the wiper 4.
In the accompanying drawing 2, power supply 5 and motor 8 are installed in the dust absorption blackboard eraser 1, impeller 7 is installed on the motor 8.Power supply 5 is connected with motor 8 with power switch 2 by power line 6.Several air suction openings 3 on the wiper 4 communicate with the inner chamber of dust absorption blackboard eraser 1.Passage 9 is arranged on the dust absorption blackboard eraser 1, and passage 9 communicates with the inner chamber of dust absorption blackboard eraser 1.Dust box 10 and filter screen 11 are installed in the dust absorption blackboard eraser 1.Power supply 5 is batteries, also solar cell.
Claims (2)
1, a kind of dust absorption blackboard eraser, it is made up of dust absorption blackboard eraser (1), wiper (4) etc., it is characterized in that being installed with in the dust absorption blackboard eraser (1) power supply (5), motor (8) and impeller (7), communicate in the air suction opening (3) on the wiper (4) and the dust absorption blackboard eraser (1).
2,, it is characterized in that power supply (5) is connected with motor (8) with power switch (2) by power line (6) according to the dust absorption blackboard eraser of claim 1 defined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200866476U CN201099112Y (en) | 2007-08-22 | 2007-08-22 | Dust-absorbing blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200866476U CN201099112Y (en) | 2007-08-22 | 2007-08-22 | Dust-absorbing blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201099112Y true CN201099112Y (en) | 2008-08-13 |
Family
ID=39935642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200866476U Expired - Fee Related CN201099112Y (en) | 2007-08-22 | 2007-08-22 | Dust-absorbing blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201099112Y (en) |
-
2007
- 2007-08-22 CN CNU2007200866476U patent/CN201099112Y/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: 20080813 Termination date: 20100822 |