CN102390205A - Dust collection blackboard eraser - Google Patents
Dust collection blackboard eraser Download PDFInfo
- Publication number
- CN102390205A CN102390205A CN2011103316106A CN201110331610A CN102390205A CN 102390205 A CN102390205 A CN 102390205A CN 2011103316106 A CN2011103316106 A CN 2011103316106A CN 201110331610 A CN201110331610 A CN 201110331610A CN 102390205 A CN102390205 A CN 102390205A
- Authority
- CN
- China
- Prior art keywords
- dust
- blackboard eraser
- dust collection
- switch
- powder box
- 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.)
- Pending
Links
Images
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The invention relates to a dust collection blackboard eraser. The blackboard eraser comprises a shell, a powder box, a dust collection unit and a switch. The dust collection unit comprises a storage battery, a dust collection motor and blades, wherein the positive pole of the storage battery is connected with an excitation winding of the dust collection motor, and the output end of the dust collection motor is connected with the blades. The dust collection unit can suck chalk dust into the powder box when the switch is closed. The dust collection blackboard eraser can absorb the chalk dust while erasing the chalk dust, prevent the chalk dust from flying and be conductive to keeping a classroom clean.
Description
Technical field
The present invention relates to a kind of blackboard eraser, especially a kind of dust absorption blackboard eraser.
Background technology
Blackboard eraser is a kind of common teaching aid.Because when existing blackboard eraser is wiped chalk writing, have a large amount of chalk dusts and fall.The chalk dust that is scattered has in a large number not only polluted the classroom air, and after in teacher student's suction body, harmful to health.Relate to and a kind ofly can wipe chalk dust, can in time absorb the blackboard eraser of chalk dust again, can address this problem.
Summary of the invention
Technical problem to be solved by this invention is to the deficiency of above-mentioned background technology, and a kind of dust absorption blackboard eraser is provided.
The present invention adopts following technical scheme for realizing the foregoing invention purpose:
A kind of dust absorption blackboard eraser comprises shell, powder box, dust suction unit, switch; Wherein, said powder box places enclosure, and the outlet of said dust suction unit is connected with the import of powder box; Said dust suction unit comprises battery, dust sucting motor and blade, and wherein, said battery is connected with switch, and the positive pole of battery is connected with the Exciting Windings for Transverse Differential Protection of dust sucting motor, and the output of dust sucting motor is connected with blade, and said switch is positioned at a side of shell.
Further, the dust sucting motor of said dust absorption blackboard eraser adopts the excitation mode excitation of series excitation.
Further, a magnet is arranged on the shell of said dust absorption blackboard eraser.
The present invention adopts technique scheme, has following beneficial effect: when wiping chalk dust, absorb chalk dust, avoided chalk dust to fly upward, help the classroom and keep a public place clean.
Description of drawings
Fig. 1 is the sketch map of dust absorption blackboard eraser.Label declaration among the figure: 1, shell; 2, powder box; 3, dust suction unit; 4, switch; 5, magnet.
The specific embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is elaborated:
Dust absorption blackboard eraser shown in Fig. 1 comprises shell 1, powder box 2, dust suction unit 3, switch 4; Wherein:
When pressing switch, dust sucting motor work zone moving vane rotates, and the chalk dust under blackboard eraser is wiped sucks in the powder box.Treat chalk dust in the powder box long-pending full after, can powder box dismounting back be cleaned, reinstall in the shell, in order to using next time.In addition, a magnet 5 is arranged on the dust absorption blackboard eraser shell,, can blackboard eraser be inhaled on blackboard, save the space in blackboard eraser time spent not.
Claims (3)
1. a dust absorption blackboard eraser is characterized in that, comprises shell, powder box, dust suction unit, switch; Wherein, said powder box places enclosure, and the outlet of said dust suction unit is connected with the import of powder box; Said dust suction unit comprises battery, dust sucting motor and blade, and wherein, said battery is connected with switch, and the positive pole of battery is connected with the Exciting Windings for Transverse Differential Protection of dust sucting motor, and the output of dust sucting motor is connected with blade, and said switch is positioned at a side of shell.
2. dust absorption blackboard eraser according to claim 1 is characterized in that, said dust sucting motor adopts the excitation mode excitation of series excitation.
3. dust absorption blackboard eraser according to claim 1 is characterized in that, a magnet is arranged on the shell of said dust sucting motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103316106A CN102390205A (en) | 2011-10-27 | 2011-10-27 | Dust collection blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103316106A CN102390205A (en) | 2011-10-27 | 2011-10-27 | Dust collection blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102390205A true CN102390205A (en) | 2012-03-28 |
Family
ID=45857637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103316106A Pending CN102390205A (en) | 2011-10-27 | 2011-10-27 | Dust collection blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102390205A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104908494A (en) * | 2014-03-12 | 2015-09-16 | 南京化工职业技术学院 | Self-generating electricity dust collection blackboard eraser |
| CN105644220A (en) * | 2014-11-13 | 2016-06-08 | 南京化工职业技术学院 | Self-electricity-generating environment-friendly blackboard eraser |
-
2011
- 2011-10-27 CN CN2011103316106A patent/CN102390205A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104908494A (en) * | 2014-03-12 | 2015-09-16 | 南京化工职业技术学院 | Self-generating electricity dust collection blackboard eraser |
| CN105644220A (en) * | 2014-11-13 | 2016-06-08 | 南京化工职业技术学院 | Self-electricity-generating environment-friendly blackboard eraser |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204222496U (en) | Automatic dust absorption chalkboard eraser | |
| CN201633409U (en) | Electric dust-absorption blackboard eraser | |
| CN203210961U (en) | Multifunctional blackboard eraser | |
| CN102390205A (en) | Dust collection blackboard eraser | |
| CN202278895U (en) | Dust suction blackboard eraser | |
| CN203623240U (en) | Dust-free electric chalk eraser | |
| CN104626838A (en) | Electric dust collection blackboard eraser | |
| CN202345208U (en) | Electric blackboard eraser | |
| CN204398707U (en) | Electric dust absorption blackboard eraser | |
| CN202498916U (en) | Dust-absorbing blackboard eraser | |
| CN203780164U (en) | Electric dust-collecting blackboard eraser | |
| CN201572766U (en) | Blackboard eraser cleaning device | |
| CN201922797U (en) | Electric blackboard eraser capable of absorbing chalk dust for teaching | |
| CN203110720U (en) | Dust-absorption-type semiautomatic blackboard eraser | |
| CN208306224U (en) | A kind of automatic chalk dust absorption type blackboard eraser | |
| CN204480530U (en) | English learning teaching aid | |
| CN201693942U (en) | Blackboard eraser | |
| CN202986555U (en) | Blackboard eraser | |
| CN202557128U (en) | Dust-absorbing blackboard eraser | |
| CN202656744U (en) | Full-automatic blackboard eraser | |
| CN201338481Y (en) | Dustless electric blackboard eraser | |
| CN203078136U (en) | Electric blackboard eraser | |
| CN203142198U (en) | Dust-free blackboard eraser | |
| CN202413192U (en) | Environment protection type blackboard eraser | |
| CN202138121U (en) | Dust removal eraser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120328 |