CN104029546A - Dust-free blackboard eraser - Google Patents
Dust-free blackboard eraser Download PDFInfo
- Publication number
- CN104029546A CN104029546A CN201410285318.9A CN201410285318A CN104029546A CN 104029546 A CN104029546 A CN 104029546A CN 201410285318 A CN201410285318 A CN 201410285318A CN 104029546 A CN104029546 A CN 104029546A
- Authority
- CN
- China
- Prior art keywords
- blackboard eraser
- dust
- fan
- negative pressure
- drawer type
- 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
- 239000000428 dust Substances 0.000 claims abstract description 21
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 9
- 238000009423 ventilation Methods 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims description 13
- 239000012528 membrane Substances 0.000 claims description 6
- 230000007774 longterm Effects 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The invention relates to a dust-free blackboard eraser and belongs to the field of stationery. The dust-free blackboard eraser comprises an eraser shell, a brush, chalk dust suction holes, a drawer type chalk dust collection bin, a micromotor, a fan, a ventilation film, an electric switch, an exhaust hole, a lithium battery and a telescopic plug, wherein the fan is connected on the micromotor. Chalk dust generated by the blackboard eraser can be sucked into the chalk dust collection bin through the micromotor, splashing of the chalk dust is reduced, and environment is kept sanitary and safe. The chalk dust collection bin can be optionally detached and cleaned. The dust-free blackboard eraser is rechargeable for long term use, trouble in battery replacement is removed, and the dust-free blackboard eraser is economic and environment friendly.
Description
Technical field
The invention belongs to stationery field, be specifically related to a kind of Dustless eraser.
Background technology
In modern classroom teaching, multimedia teaching has replaced blackboard writing teaching gradually, but blackboard writing teaching due to its flexibility, the advantage such as can change or by many school teachers for teaching, but chalk teaching is for many years due to its drawback, the chalk bits that particularly erase the board fly upward everywhere, fall teacher and classmate's head upper and with it, cause much inconvenience, more serious is that the break flour flying upward is easy to be drawn onto in academics and students's lung, accumulates over a long period and can have influence on human respiratory tract's health.
Summary of the invention
In order to overcome the chalk bits that erase the board now, fly upward everywhere, it is a kind of with low cost that spy provides, and has dust removal ability, reduces dust, guarantees the rechargeable type Dustless eraser of safety and sanitation.
The present invention is for achieving the above object, the technical scheme adopting is: a kind of Dustless eraser is provided, comprise blackboard eraser housing, hairbrush, hairbrush is in the surface of blackboard eraser housing, it is characterized in that: hairbrush root is provided with inhales powder hole, the drawer type Ji Fencang that is provided with dust exhaust apparatus in blackboard eraser housing and communicates with suction powder hole, described dust exhaust apparatus comprises micro machine, be connected to the fan on micro machine, the motor switch of control micro electric machine, the lithium battery being connected with motor switch and the extension type charging plug on lithium battery, in described blackboard eraser housing, be also provided with a negative pressure chamber communicating with drawer type Ji Fencang, negative pressure chamber is provided with steam vent, steam vent is located on blackboard eraser housing, described fan is positioned at negative pressure chamber, Ji Fencang separates by air ventilation membrane with drawer type.
Described ventilation fenestra order is less than 20 μ m, is enough to by air, blocks entering of dust.
Beneficial effect of the present invention is: the dust that powerful micro machine can produce erasing the board sucks in collection powder storehouse, reduces dust from flying, environmentally-friendly sanitary safety; Ji Fencang can arbitrarily pull dismounting cleaning; Rechargeable type Dustless eraser, the use of can charging for a long time, has removed the worry of changing battery, not only economy but also environmental protection.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, blackboard eraser housing; 2, hairbrush; 3, drawer type Ji Fencang; 4, micro machine; 5, fan; 6, air ventilation membrane; 7, motor switch; 8, steam vent; 9, extension type charging plug; 101, negative pressure chamber, 11, lithium battery.
Fig. 2 is front elevation of the present invention.
In figure: 1, blackboard eraser housing; 2, hairbrush; 10, inhale powder hole.
The specific embodiment
As illustrated in fig. 1 and 2, a kind of Dustless eraser, it comprises blackboard eraser housing 1, hairbrush 2, and hairbrush 2 is in the surface of blackboard eraser housing 1, and hairbrush 2 belows have inhales the drawer type collection powder storehouse 3 that is provided with dust exhaust apparatus and communicates with suction powder hole in powder hole 10, housing 1.
Dust exhaust apparatus comprises micro machine 4, be connected to fan 5 on micro machine, motor switch 7, steam vent 8, the lithium battery 11 being connected with motor switch 7 and the extension type charging plug 9 on lithium battery of control micro electric machine assemble and be integrated.
In dust exhaust apparatus, be also provided with a negative pressure chamber 101 communicating with drawer type collection powder storehouse 3, the air outlet of negative pressure chamber 101 is steam vent 8.
Fan 5 separates by air ventilation membrane 6 with drawer type collection powder storehouse 3.
Blackboard eraser housing 1 is made by rigid plastics.
There is the arbitrarily pull dismounting of drawer position in drawer type collection powder storehouse 3, so that the dust in cleaning collection powder storehouse.
Lithium battery 11 charges by 220v alternating current through telescopic plug 9.
Air ventilation membrane 6 is made by a kind of fibre, and its hole order is less than 20 μ m, is enough to by air, blocks entering of dust.
Steam vent 8 is positioned at micro-negative pressure chamber rear, starts micro machine and sucks after dust, by air ventilation membrane 6, filtered air is discharged by steam vent 8, in negative pressure chamber, forms negative pressure, makes airflow circulating unobstructed.
Claims (2)
1. a Dustless eraser, comprise blackboard eraser housing, hairbrush, hairbrush is in the surface of blackboard eraser housing, it is characterized in that: hairbrush root is provided with inhales powder hole, the drawer type Ji Fencang that is provided with dust exhaust apparatus in blackboard eraser housing and communicates with suction powder hole, described dust exhaust apparatus comprises micro machine, be connected to the fan on micro machine, the motor switch of control micro electric machine, the lithium battery being connected with motor switch and the extension type charging plug on lithium battery, in described blackboard eraser housing, be also provided with a negative pressure chamber communicating with drawer type Ji Fencang, negative pressure chamber is provided with steam vent, steam vent is located on blackboard eraser housing, described fan is positioned at negative pressure chamber, Ji Fencang separates by air ventilation membrane with drawer type.
2. Dustless eraser as claimed in claim 1, is characterized in that: described ventilation fenestra order is less than 20 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410285318.9A CN104029546A (en) | 2014-06-24 | 2014-06-24 | Dust-free blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410285318.9A CN104029546A (en) | 2014-06-24 | 2014-06-24 | Dust-free blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104029546A true CN104029546A (en) | 2014-09-10 |
Family
ID=51460640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410285318.9A Pending CN104029546A (en) | 2014-06-24 | 2014-06-24 | Dust-free blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104029546A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107471875A (en) * | 2017-07-22 | 2017-12-15 | 安徽华艾堂医疗科技有限公司 | A kind of chalkboard eraser |
| CN107685582A (en) * | 2017-10-14 | 2018-02-13 | 安徽华艾堂医疗科技有限公司 | A kind of chalkboard eraser device |
| CN110154600A (en) * | 2019-05-31 | 2019-08-23 | 毛潞 | It erases the board and uses auxiliary device |
| CN110779829A (en) * | 2019-10-21 | 2020-02-11 | 华南理工大学 | A quantitative detection device for tobacco sheet hair loss and powder loss |
| CN112046180A (en) * | 2020-10-15 | 2020-12-08 | 淮南师范学院 | a blackboard eraser |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2240444Y (en) * | 1995-06-08 | 1996-11-20 | 郭沫华 | Dust-suction eraser for blackboard |
| JPH11129695A (en) * | 1997-10-29 | 1999-05-18 | Shin Fukui | Motor operated blackboard eraser |
| CN2322803Y (en) * | 1998-01-15 | 1999-06-09 | 王广然 | Chalk dust suction blackboard eraser |
| CN2352368Y (en) * | 1998-12-18 | 1999-12-08 | 黄建州 | Battery-charging type electric blackboard eraser with chalk dust absorbing |
| CN201148083Y (en) * | 2007-12-19 | 2008-11-12 | 上海市新中高级中学 | Absorbent blackboard eraser |
| CN201220558Y (en) * | 2008-05-20 | 2009-04-15 | 张慧真 | Blackboard eraser |
| CN201456828U (en) * | 2009-08-22 | 2010-05-12 | 王东升 | Environmental-friendly, energy-saving and dust-removing blackboard eraser |
| CN202463379U (en) * | 2012-02-28 | 2012-10-03 | 闫化存 | Dust-absorption blackboard eraser |
-
2014
- 2014-06-24 CN CN201410285318.9A patent/CN104029546A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2240444Y (en) * | 1995-06-08 | 1996-11-20 | 郭沫华 | Dust-suction eraser for blackboard |
| JPH11129695A (en) * | 1997-10-29 | 1999-05-18 | Shin Fukui | Motor operated blackboard eraser |
| CN2322803Y (en) * | 1998-01-15 | 1999-06-09 | 王广然 | Chalk dust suction blackboard eraser |
| CN2352368Y (en) * | 1998-12-18 | 1999-12-08 | 黄建州 | Battery-charging type electric blackboard eraser with chalk dust absorbing |
| CN201148083Y (en) * | 2007-12-19 | 2008-11-12 | 上海市新中高级中学 | Absorbent blackboard eraser |
| CN201220558Y (en) * | 2008-05-20 | 2009-04-15 | 张慧真 | Blackboard eraser |
| CN201456828U (en) * | 2009-08-22 | 2010-05-12 | 王东升 | Environmental-friendly, energy-saving and dust-removing blackboard eraser |
| CN202463379U (en) * | 2012-02-28 | 2012-10-03 | 闫化存 | Dust-absorption blackboard eraser |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107471875A (en) * | 2017-07-22 | 2017-12-15 | 安徽华艾堂医疗科技有限公司 | A kind of chalkboard eraser |
| CN107685582A (en) * | 2017-10-14 | 2018-02-13 | 安徽华艾堂医疗科技有限公司 | A kind of chalkboard eraser device |
| CN110154600A (en) * | 2019-05-31 | 2019-08-23 | 毛潞 | It erases the board and uses auxiliary device |
| CN110779829A (en) * | 2019-10-21 | 2020-02-11 | 华南理工大学 | A quantitative detection device for tobacco sheet hair loss and powder loss |
| CN112046180A (en) * | 2020-10-15 | 2020-12-08 | 淮南师范学院 | a blackboard eraser |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104029546A (en) | Dust-free blackboard eraser | |
| CN204472287U (en) | Mathematical education blackboard dust gas solid separation collects escaper | |
| CN204955867U (en) | Dust -proof blackboard eraser | |
| CN202557137U (en) | Dust absorption blackboard eraser with internally-installed fan | |
| CN204398707U (en) | Electric dust absorption blackboard eraser | |
| CN203427495U (en) | Negative pressure dust collection environment-friendly blackboard | |
| CN203293783U (en) | Dust-absorbing chalkboard eraser | |
| CN203391535U (en) | Blackboard for preventing dust from flying | |
| CN204605325U (en) | A kind of dust-absorbing blackboard | |
| CN201979965U (en) | Dustproof eraser | |
| CN204736634U (en) | A chalk eraser with a chalk dust collection bin | |
| CN204398703U (en) | A kind of novel chalk-dust suppression blackboard eraser | |
| CN204472332U (en) | Dust removal blackboard eraser | |
| CN206703779U (en) | Electric drive inhales grey chalk sleeve | |
| CN204915039U (en) | Eraser | |
| CN204414966U (en) | A kind of Novel blackboard eraser | |
| CN201693942U (en) | Blackboard eraser | |
| CN204726115U (en) | The grey chalkboard eraser of a kind of suction automatically | |
| CN202557135U (en) | Dust-collecting blackboard eraser | |
| CN108146119A (en) | A kind of blackboard eraser for teaching from sucking chalk powder | |
| CN202641176U (en) | Novel dry-wet eraser | |
| CN204820821U (en) | Portable dust absorption blackboard eraser | |
| CN205871577U (en) | Dust -free type blackboard eraser | |
| CN204506274U (en) | A kind of dust-suction blackboard eraser | |
| CN202608373U (en) | Dust collection blackboard eraser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140910 |