CN201346939Y - Dust-sucking blackboard eraser - Google Patents
Dust-sucking blackboard eraser Download PDFInfo
- Publication number
- CN201346939Y CN201346939Y CNU2008201583271U CN200820158327U CN201346939Y CN 201346939 Y CN201346939 Y CN 201346939Y CN U2008201583271 U CNU2008201583271 U CN U2008201583271U CN 200820158327 U CN200820158327 U CN 200820158327U CN 201346939 Y CN201346939 Y CN 201346939Y
- Authority
- CN
- China
- Prior art keywords
- dust
- cavity
- rub body
- blackboard eraser
- mini fan
- 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 discloses a dust-sucking blackboard eraser, which comprises an eraser body and an erasing block; wherein the erasing block is mounted on the eraser body which is provided with a cavity; the erasing block is provided with a dust inlet communicated with the cavity; the upper side in the cavity is provided with a micro-fan; the back of the eraser body is provided with a battery box; the side of the eraser body is provided with a switch; and the micro-fan, the switch and the battery box are electrically connected to form a power supply circuit. The dust-sucking blackboard eraser has the advantage that dust cannot be produced when a blackboard is erased, thus avoiding the spread of chalk dust in a classroom and providing a clean teaching and learning environment for teachers and students, so that the physical health of teachers and students can be protected.
Description
Technical field
The utility model relates to a kind of blackboard eraser, relates in particular to a kind of dust absorption blackboard eraser.
Background technology
At present, most of schools also use blackboard and chalk to impart knowledge to students.Use chalk when erasing the board, can produce a lot of dust exactly in the harm of writing maximum on the blackboard.These dust spread in the classroom and can work the mischief to the teacher that gives a lesson and front-seat classmate's health.But, up to the present, also do not have effective way to solve to erase the board to produce the problem of a large amount of dust.
The utility model content
Technical problem to be solved in the utility model provides a kind of erasing the board can not produce the blackboard eraser of dust, to overcome the defective 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 dust absorption blackboard eraser comprises rub body, is installed in the wiping piece on the rub body, it is characterized in that: described rub body inside has cavity, wipes to have the dust mouth that is communicated with cavity on the piece, and the cavity internal upper part is provided with mini fan, and the rub body back is provided with battery compartment; The rub body side is provided with switch, and described mini fan, switch, battery compartment are electrically connected and form power supply circuits.
For the dust that prevents to enter in the cavity spills from the dust mouth of wiping piece, the interior mini fan below that is positioned at of described cavity is provided with a control of dust funnel, and the big actinal surface of this integrated funnel is to mini fan.
Clear up the dust in the cavity for convenience, the back of described rub body also has dust pouring spout and the shutoff lid at the dust pouring spout.
Adopt technique scheme, dust absorption blackboard eraser of the present utility model starts mini fan when erasing the board, and can directly the dust of wiping from blackboard be sucked in the cavity of rub body, can avoid dust to spread in the air.
Therefore, dust absorption blackboard eraser of the present utility model has to erase the board and can not produce the advantage of dust, avoided chalk dust in the classroom, to propagate, thereby created clean, as to clean teaching, an academic environment, helped the healthy of Faculty and Students to the academics and students.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is elaborated
Fig. 1 is a structural representation of the present utility model.
Among the figure:
100, rub body 101, cavity 102, dust pouring spout 103, lid
200, wipe piece 201, dust mouth 300, mini fan 400, battery compartment
500, switch 600, control of dust funnel
The specific embodiment
As shown in Figure 1, dust absorption blackboard eraser of the present utility model comprises rub body 100 and wipes piece 200.Rub body 1 adopts plastic production, and its inside has cavity 100.Wipe piece 200 and adopt nylon or rigid foam or cotton wool to make, be installed in the front of rub body 100.Be distributed with dust mouth 201 on wiping piece 200, dust mouth 201 is communicated with cavity 101.
Top in the cavity 101 of rub body 100 is equipped with mini fan 300, and this mini fan 300 can suck dust in the cavity 101 through dust mouth 201.Be provided with battery compartment 400 at the back of rub body 100, load onto dry cell in the battery compartment 400, can provide electric energy for mini fan 300 runnings.Be provided with switch 500 at rub body 100 sides.Switch 500 is used to control the running of mini fan 300 and stop.Mini fan 300, switch 500, battery compartment 400 are connected to form power supply circuits by lead.
For the dust that prevents to enter in the cavity 101 spills from the dust mouth 201 of wiping piece 200, be positioned at mini fan 300 belows in the cavity interior 101 and be provided with a control of dust funnel 600, the big actinal surface of this integrated funnel 600 is to mini fan 300, and low profile is to cavity 101 bottoms.This control of dust funnel 600 has been arranged, and dust can only enter cavity 101, and can not spill from what dust mouth 201.
Clear up the dust in the cavity 101 for convenience, the back of rub body 100 also has dust pouring spout 102 and the shutoff lid 103 at dust pouring spout 102.
More than be exactly dust absorption blackboard eraser of the present utility model when erasing the board, start mini fan 300, can be directly in the cavity 101 with the dust suction rub body 100 wiped from blackboard, can avoid dust to spread in the air.
Therefore, dust absorption blackboard eraser of the present utility model has to erase the board and can not produce the advantage of dust, avoided chalk dust in the classroom, to propagate, thereby created clean, as to clean teaching, an academic environment, helped the healthy of Faculty and Students to the academics and students.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop on claim scope of the present utility model to variation, the modification of the above embodiment.
Claims (3)
1, a kind of dust absorption blackboard eraser comprises rub body, is installed in the wiping piece on the rub body, it is characterized in that: described rub body inside has cavity, wipes to have the dust mouth that is communicated with cavity on the piece, and the cavity internal upper part is provided with mini fan, and the rub body back is provided with battery compartment; The rub body side is provided with switch, and described mini fan, switch, battery compartment are electrically connected and form power supply circuits.
2, dust absorption blackboard eraser according to claim 1 is characterized in that: be positioned at the mini fan below in the described cavity and be provided with a control of dust funnel, the big actinal surface of this integrated funnel is to mini fan.
3, dust absorption blackboard eraser according to claim 1 and 2 is characterized in that: the back of described rub body also has dust pouring spout and the shutoff lid at the dust pouring spout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201583271U CN201346939Y (en) | 2008-12-30 | 2008-12-30 | Dust-sucking blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201583271U CN201346939Y (en) | 2008-12-30 | 2008-12-30 | Dust-sucking blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201346939Y true CN201346939Y (en) | 2009-11-18 |
Family
ID=41366417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201583271U Expired - Fee Related CN201346939Y (en) | 2008-12-30 | 2008-12-30 | Dust-sucking blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201346939Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110920301A (en) * | 2019-12-31 | 2020-03-27 | 刘秀亚 | Blackboard eraser with dust absorption function |
-
2008
- 2008-12-30 CN CNU2008201583271U patent/CN201346939Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110920301A (en) * | 2019-12-31 | 2020-03-27 | 刘秀亚 | Blackboard eraser with dust absorption function |
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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: 20091118 Termination date: 20101230 |