CN201989526U - Electric dust absorption blackboard eraser - Google Patents
Electric dust absorption blackboard eraser Download PDFInfo
- Publication number
- CN201989526U CN201989526U CN2010206938272U CN201020693827U CN201989526U CN 201989526 U CN201989526 U CN 201989526U CN 2010206938272 U CN2010206938272 U CN 2010206938272U CN 201020693827 U CN201020693827 U CN 201020693827U CN 201989526 U CN201989526 U CN 201989526U
- Authority
- CN
- China
- Prior art keywords
- blackboard eraser
- dust
- housing
- dust absorption
- direct current
- 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
- 239000000428 dust Substances 0.000 title claims abstract description 54
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 14
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
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Abstract
The utility model relates to a teaching tool, in particular to a blackboard eraser. The electric dust absorption blackboard eraser comprises a blackboard body which includes a blackboard eraser brush and a shell for holding the blackboard eraser brush. The blackboard eraser brush comprises a dust absorption device which is connected with a direct current motor arranged inside the shell. A power supply is arranged inside the shell and is connected with the direct current motor. A control switch is further arranged on the shell. The electric dust absorption blackboard eraser can not only erase chalk dusts on the blackboard, but also can absorb dropping chalk dusts into the air, reduces possibilities that the base board is contaminative and the chalk dusts enter users' eyes, thereby being convenient and practical.
Description
Technical field
The utility model relates to educational aid, is specifically related to a kind of blackboard eraser.
Background technology
Usually in educational aid, teacher can write some things on blackboard, so that student's study and understanding, the capacity of blackboard is limited, therefore needs thing that will write, that said often to wipe so that write new content to the student.Though existing development of science and technology, blackboard be not only limited to chalk describe a kind of, this blackboard of describing with chalk exists.Yet when the letter written with chalk of wiping with blackboard eraser on the blackboard, some chalk dusts that tend to descend slowly and lightly, the ground of not only can making dirty, the people's that wipes letter written with chalk of also can often making dirty clothes, the chalk dust that has even can have been brought many inconvenience to people by in people's inspiration body or fall in people's the eyes.
The utility model content
The purpose of this utility model is, a kind of electric dust absorption blackboard eraser is provided, and solves above technical problem.
The technical problem that the utility model solved can realize by the following technical solutions:
Electric dust absorption blackboard eraser comprises a blackboard eraser main body, and described blackboard eraser main body comprises a blackboard eraser brush, one holds the housing of blackboard eraser brush, it is characterized in that, the blackboard eraser main body comprises a dust exhaust apparatus, described dust exhaust apparatus connects a direct current motor, and described direct current generator is arranged in the described housing;
Be provided with a power supply in the described housing, described power supply connects described direct current generator, also is provided with a gauge tap on the described housing, and described gauge tap connects described direct current generator.
People can be when erasing the board, open the gauge tap of described housing, make described dust exhaust apparatus under the effect of described direct current generator, move, absorb described blackboard eraser brush and wipe chalk dust down, drop and the floor or fall into people's eyes of making dirty with the minimizing chalk dust from blackboard.
Described blackboard eraser brush and described housing removably connect.
Described dust exhaust apparatus is provided with a suction port, and described suction port is positioned at described blackboard eraser brush and described housing junction.So that described dust exhaust apparatus sucks chalk dust from described suction port.
Also be provided with a dust-collecting cavity in the described housing, the opening part of described dust-collecting cavity is connected described suction port.When described direct current generator drives the running of described dust exhaust apparatus, described dust exhaust apparatus with chalk dust from the described dust-collecting cavity of suction port inspiration, in order to avoid chalk dust descends slowly and lightly once more and then makes ground dirty.
Described dust-collecting cavity is a dismountable dust-collecting cavity.So that chalk dust is fallen from described dust-collecting cavity, avoid chalk dust in the described dust-collecting cavity to overflow and reduce effect of the present utility model.
Described dust exhaust apparatus comprises an impeller unit, and described impeller unit adopts a turbine, and described turbine is arranged on described suction port place.Described turbine can absorb the chalk dust that descends slowly and lightly when turning round in a spiral manner.More practical than the ordinary blackboard eraser main body.
Described power supply is a chargeable power supply, gives described direct current generator charging by the described power supply after the charging, makes that utilization rate of the present utility model is higher.
Described power supply is provided with a charging socket that is positioned on the housing.By described charging socket is described power source charges.
The utility model can not only be wiped the chalk dust on the blackboard, also in the chalk dust inspiration gas that wiping can be fallen, reduces the possibility of making base plate dirty and making chalk dust enter people's eyes, and is convenient and practical.
Description of drawings
Fig. 1 is a part-structure schematic diagram of the present utility model;
Fig. 2 is a kind of circuit diagram of the present utility model.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose with effect is easy to understand, below in conjunction with the further elaboration the utility model of concrete diagram.
With reference to Fig. 1, Fig. 2, electric dust absorption blackboard eraser comprises a blackboard eraser main body 1, and blackboard eraser main body 1 comprises that a blackboard eraser brush 2, holds the housing 3 of blackboard eraser brush 2.Blackboard eraser main body 1 comprises a dust exhaust apparatus 21, and dust exhaust apparatus 21 connects a direct current motor 4, and direct current generator 4 is arranged in the housing 3; Be provided with a power supply 6 in the housing 3, power supply 6 connects direct current generator 4, also is provided with a gauge tap 7 on the housing 3, and gauge tap 7 connects direct current generator 4.People can be when erasing the board, open the gauge tap 7 of housing 3, make dust exhaust apparatus 21 under the effect of direct current generator 4, move, and absorb blackboard eraser brush 2 and wipe chalk dust down, drop and the floor or fall into people's eyes of making dirty with the minimizing chalk dust from blackboard.
Dust exhaust apparatus 21 is provided with a suction port, and suction port is positioned at blackboard eraser brush 2 and housing 3 junctions.So that dust exhaust apparatus 21 sucks chalk dust from suction port.Also be provided with a dust-collecting cavity 5 in the housing 3, the opening part of dust-collecting cavity 5 is connected suction port.When direct current generator 4 drives dust exhaust apparatuses 21 runnings, dust exhaust apparatus 21 with chalk dust from suction port inspiration dust-collecting cavity 5, in order to avoid chalk dust descends slowly and lightly once more and then makes ground dirty.Dust-collecting cavity 5 is a dismountable dust-collecting cavity.So that chalk dust is fallen from dust-collecting cavity 5, avoid chalk dust in the dust-collecting cavity 5 to overflow and reduce effect of the present utility model.
Dust exhaust apparatus 21 comprises an impeller unit, and impeller unit adopts a turbine, and turbine is arranged on the suction port place.Turbine can absorb the chalk dust that descends slowly and lightly when turning round in a spiral manner.More practical than the ordinary blackboard eraser main body.Power supply 6 is a chargeable power supply, gives direct current generator 4 chargings by the power supply after the charging 6, makes that utilization rate of the present utility model is higher.Power supply 6 is provided with a charging socket that is positioned on the housing.By the charging socket is power supply 6 chargings.
More than show and described basic 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; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. electric dust absorption blackboard eraser, comprise a blackboard eraser main body, described blackboard eraser main body comprises a blackboard eraser brush, one holds the housing of blackboard eraser brush, it is characterized in that, described blackboard eraser main body comprises a dust exhaust apparatus, and described dust exhaust apparatus connects a direct current motor, and described direct current generator is arranged in the described housing;
Be provided with a power supply in the described housing, described power supply connects described direct current generator, also is provided with a gauge tap on the described housing, and described gauge tap connects described direct current generator.
2. electric dust absorption blackboard eraser according to claim 1 is characterized in that: described dust exhaust apparatus is provided with a suction port, and described suction port is positioned at described blackboard eraser brush and described housing junction.
3. electric dust absorption blackboard eraser according to claim 2 is characterized in that: also be provided with a dust-collecting cavity in the described housing, the opening part of described dust-collecting cavity is connected described suction port.
4. electric dust absorption blackboard eraser according to claim 3 is characterized in that: described blackboard eraser brush and described housing removably connect; Described dust-collecting cavity is a dismountable dust-collecting cavity.
5. electric dust absorption blackboard eraser according to claim 1 and 2 is characterized in that: described dust exhaust apparatus comprises an impeller unit, and described impeller unit adopts a turbine, and described turbine is arranged on described suction port place.
6. electric dust absorption blackboard eraser according to claim 1 is characterized in that: described power supply is a chargeable power supply, and described power supply is provided with a charging socket that is positioned on the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206938272U CN201989526U (en) | 2010-12-30 | 2010-12-30 | Electric dust absorption blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206938272U CN201989526U (en) | 2010-12-30 | 2010-12-30 | Electric dust absorption blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201989526U true CN201989526U (en) | 2011-09-28 |
Family
ID=44666025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206938272U Expired - Fee Related CN201989526U (en) | 2010-12-30 | 2010-12-30 | Electric dust absorption blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201989526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108749425A (en) * | 2018-06-27 | 2018-11-06 | 南京工业职业技术学院 | A kind of intelligence dust-removing blackboard eraser |
-
2010
- 2010-12-30 CN CN2010206938272U patent/CN201989526U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108749425A (en) * | 2018-06-27 | 2018-11-06 | 南京工业职业技术学院 | A kind of intelligence dust-removing blackboard eraser |
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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: 20110928 Termination date: 20111230 |