CN106004185A - Blackboard eraser preventing chalk dust from flying - Google Patents
Blackboard eraser preventing chalk dust from flying Download PDFInfo
- Publication number
- CN106004185A CN106004185A CN201610489425.2A CN201610489425A CN106004185A CN 106004185 A CN106004185 A CN 106004185A CN 201610489425 A CN201610489425 A CN 201610489425A CN 106004185 A CN106004185 A CN 106004185A
- Authority
- CN
- China
- Prior art keywords
- chalk dust
- blackboard eraser
- box body
- wiper
- electrostatic generator
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L21/00—Blackboard or slate cleaning devices
- B43L21/02—Blackboard or slate cleaning devices with means for absorbing the chalk dust
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a blackboard eraser preventing chalk dust from flying. The blackboard eraser comprises a box. An inner cavity is arranged in the box. A battery, an electrostatic generator and rotating shafts are arranged in the inner cavity. A supporting rod is arranged between the rotating shafts. The rotating shafts and the supporting rod are sleeved with a piece of wiping cloth in a connected manner. The outer side portion, facing the box, of the supporting rod is fixedly connected with an elastic gasket. The elastic gasket is located between the supporting rod and the wiping cloth. The electrostatic generator is electrically connected with the supporting rod. The battery is electrically connected with the electrostatic generator and the rotating shafts. The wiping cloth is made from a conductive material. The blackboard eraser preventing the chalk dust from flying is made by the adoption of the physical character that an electrified body attracts tiny objects and is suitable for various blackboard erasers, beneficial for popularization, simple in structure, convenient to use, environmentally friendly and high in efficiency.
Description
Technical field
The present invention relates to educational aid field, particularly relate to a kind of blackboard eraser preventing chalk dust from flying upward.
Background technology
Blackboard is most important instrument in present education and instruction, although currently have the emerging teaching equipments such as various display screen, projection, but blackboard can not be substituted as its status of widest instrument.Current blackboard has Glass blackboard, cement blackboard, wooden blackboard, high molecular polymerization blackboard etc., and it all can produce substantial amounts of chalk dust when erasing the board.One student acquires, from little, about 16 years of finishing college, the gold period that this grows the most just, and the growth that dust pollution has had a strong impact on student is healthy.One teacher's slave station was about for 40 years to dais to retirement, and dust pollution has had a strong impact on the physical and mental health of teacher especially.
Although currently also there being the blackboard of various anti-dust, but effect is bad, structure is complicated mostly in-convenience in use be unfavorable for promoting.Owing to multiformity and the quantity thereof of blackboard are relatively big, if just transformed blackboard, it is not intended to can increase a lot of cost, not utilize utilization and extention.
Summary of the invention
The problem that when present invention aim to address the letter written with chalk on current blackboard wiping, chalk dust flies upward, it is provided that a kind of blackboard eraser preventing chalk dust from flying upward so that it is can be used on the blackboard of various unlike material, structure.
The technical solution used in the present invention is: a kind of blackboard eraser preventing chalk dust from flying upward, including box body, it is provided with inner chamber in described box body, battery, electrostatic generator and rotary shaft it is provided with in described inner chamber, it is provided with support bar between described rotary shaft, the outside socket wiper of described rotary shaft and support bar, described support bar is connected with elastomeric pad towards box body lateral part, and described elastomeric pad is between support bar and wiper；Described electrostatic generator electrical connection support bar, described battery electrical connection electrostatic generator and rotary shaft；Described wiper is that conductive material is made.
As a further improvement on the present invention, being additionally provided with dividing plate in described inner chamber, described dividing plate is positioned at above wiper, and one end is connected with box body, and the other end is in close contact with wiper.
As a further improvement on the present invention, button, the work of described button control electrostatic generator are also included.
As the further improvement of the present invention, the surface of described wiper is provided with fine, soft fur brush.
As the further improvement of the present invention, described box body is provided with removes the dodge gate of chalk dust in box body.
The present invention uses and provides the benefit that: the blackboard eraser of this structure, utilizes electrical body to attract the physical characteristic of molecule to be made.It is applicable to diversiform blackboard eraser, utilizes and promote.Present configuration is simple, easy to use, environment-friendly high-efficiency.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is top view of the present invention.
Shown in figure: 1 box body, 2 rotary shafts, 3 support bars, 4 wipers, 5 elastomeric pads, 6 buttons, 7 electrostatic generators, 8 batteries, 9 dividing plates.
Detailed description of the invention
Below in conjunction with Fig. 1 and Fig. 2, the present invention is described further.
As shown in the figure, a kind of blackboard eraser preventing chalk dust from flying upward, including box body 1, it is provided with inner chamber in described box body 1, it is provided with battery 8, electrostatic generator 7 and rotary shaft 2 in described inner chamber, between described rotary shaft 2, is provided with support bar 3, the outside socket wiper 4 of described rotary shaft 2 and support bar 3, described support bar 3 is connected with elastomeric pad 5 towards box body 1 lateral part, and described elastomeric pad 5 is between support bar 3 and wiper 4；Described electrostatic generator electrical connection support bar 3, described battery electrical connection electrostatic generator 7 and rotary shaft 2；Described wiper 4 is made for conductive material.
Wiper is positioned at the one side of working end and ejects by elastomeric pad, the wiping that Convenient blackboard is wiped.
In order to prevent chalk dust from entering in electrostatic generator and battery, thus affecting work, be additionally provided with dividing plate 9, described dividing plate 9 is positioned at above wiper 4, and one end is connected with box body 1, and the other end is in close contact with wiper 4.The chalk dust that dividing plate will be located on wiper completely stops so that it is be all deposited in the rear portion of box body.Dividing plate is by separated with chalk dust to electrostatic generator and battery.
In order to improve the comfort of the present invention and long-time use further, also including button 6, described button 6 controls the work of electrostatic generator 7.When button is pressed, electrostatic generator is started working so that it is guaranteed that wiper is charged.
In order to improve the letter written with chalk that the blackboard eraser of the present invention can effectively be removed on blackboard, the surface of described wiper 4 is provided with fine, soft fur brush.
In order to remove the chalk dust being positioned at box body efficiently and effectively, described box body 1 is provided with removes the dodge gate of chalk dust in box body.
The present invention is following work:
When needs use blackboard eraser blackboard wiping, start electrostatic generator, so that it is guaranteed that the wiper of blackboard eraser is charged.Utilizing wipe blackboard, it is possible to be adsorbed in firmly on wiper by chalk dust, after wiping, rotary shaft rotates, thus will move in box body with one end with chalk dust on wiper.Now electrostatic generator power-off, chalk dust falls within the powder body of blackboard eraser.When using this blackboard eraser, when after wiping, blackboard eraser being inverted best results.Adding after dividing plate, the chalk dust that dividing plate itself is prevented from wiper enters into one end that electrostatic generator and battery are distributed, and also can completely cut off two parts of box body simultaneously, stops to fall into that the chalk dust of box body is the most elegant affects work.
The blackboard eraser of this structure, utilizes electrical body to attract the physical characteristic of molecule to be made.Present configuration is simple, easy to use, environment-friendly high-efficiency.
The present invention is suitable for various material, variously-shaped blackboard, thus saves the transformation expense of blackboard, is beneficial to promote.
Those skilled in the art should know; the protection scheme of the present invention is not limited only to the above embodiments; various permutation and combination and conversion can also be carried out on the basis of above-described embodiment; on the premise of spirit of the present invention, the various conversion carrying out the present invention all fall within protection scope of the present invention.
Claims (6)
1. the blackboard eraser preventing chalk dust from flying upward, including box body (1), it is provided with inner chamber in it is characterized in that described box body (1), battery (8), electrostatic generator (7) and rotary shaft (2) it is provided with in described inner chamber, support bar (3) it is provided with between described rotary shaft (2), outside socket wiper (4) of described rotary shaft (2) and support bar (3), described support bar (3) is connected with elastomeric pad (5) towards box body (1) lateral part, and described elastomeric pad (5) is positioned between support bar (3) and wiper (4)；Described electrostatic generator electrical connection support bar (3), described battery electrical connection electrostatic generator (7) and rotary shaft (2)；Described wiper (4) is that conductive material is made.
A kind of blackboard eraser preventing chalk dust from flying upward the most according to claim 1, is characterized in that being additionally provided with dividing plate (9) in described inner chamber, and described dividing plate (9) is positioned at wiper (4) top, and one end is connected with box body (1), and the other end is in close contact with wiper (4).
A kind of blackboard eraser preventing chalk dust from flying upward the most according to claim 2, is characterized in that box body top is divided into two parts by described dividing plate (9), and one of them part comprises electrostatic generator and battery.
A kind of blackboard eraser preventing chalk dust from flying upward the most as claimed in any of claims 1 to 3, is characterized in that also including button (6), and described button (6) controls the work of electrostatic generator (7).
A kind of blackboard eraser preventing chalk dust from flying upward the most as claimed in any of claims 1 to 3, is characterized in that the surface of described wiper (4) is provided with fine, soft fur brush.
A kind of blackboard eraser preventing chalk dust from flying upward the most as claimed in any of claims 1 to 3, it is characterised in that described box body (1) is provided with removes the dodge gate of chalk dust in box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610489425.2A CN106004185B (en) | 2016-06-29 | 2016-06-29 | A kind of blackboard eraser for preventing that chalk dust from flying upward |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610489425.2A CN106004185B (en) | 2016-06-29 | 2016-06-29 | A kind of blackboard eraser for preventing that chalk dust from flying upward |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106004185A true CN106004185A (en) | 2016-10-12 |
| CN106004185B CN106004185B (en) | 2018-02-27 |
Family
ID=57084721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610489425.2A Active CN106004185B (en) | 2016-06-29 | 2016-06-29 | A kind of blackboard eraser for preventing that chalk dust from flying upward |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106004185B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109203799B (en) * | 2018-11-12 | 2020-10-02 | 台州市黄岩鼎坚塑业有限公司 | Blackboard eraser capable of preventing chalk dust from flying |
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| JPH09123680A (en) * | 1995-10-30 | 1997-05-13 | Ricoh Elemex Corp | Writing board |
| JPH10203089A (en) * | 1997-01-21 | 1998-08-04 | Fuoresuta:Kk | White board wiper |
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| CN202826897U (en) * | 2012-09-12 | 2013-03-27 | 孙永锋 | Electrostatic dust absorption blackboard eraser |
| CN202862950U (en) * | 2012-09-05 | 2013-04-10 | 许征利 | Electrostatic dust absorbing eraser |
| CN202911408U (en) * | 2012-11-27 | 2013-05-01 | 张力木 | Static electricity dust removal blackboard eraser |
| CN203567426U (en) * | 2013-10-24 | 2014-04-30 | 成都理工大学 | Blackboard eraser allowing dust to be removed |
| CN203600854U (en) * | 2013-10-29 | 2014-05-21 | 张素颖 | Environment-friendly blackboard eraser |
| CN103895430A (en) * | 2014-04-18 | 2014-07-02 | 刘征宏 | Blackboard eraser capable of preventing powder from scattering |
| CN203854388U (en) * | 2014-01-07 | 2014-10-01 | 杜海霞 | Environment-friendly blackboard eraser |
| CN104648005A (en) * | 2014-06-30 | 2015-05-27 | 何小平 | Dust suction blackboard eraser |
| CN204367728U (en) * | 2015-01-20 | 2015-06-03 | 于朔 | A kind of novel blackboard eraser |
| CN206049156U (en) * | 2016-06-29 | 2017-03-29 | 裴萌 | A kind of blackboard eraser for preventing chalk dust from flying upward |
-
2016
- 2016-06-29 CN CN201610489425.2A patent/CN106004185B/en active Active
Patent Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2090123A (en) * | 1980-12-09 | 1982-07-07 | Pang Hiang Seng | Blackboard duster |
| CN2048431U (en) * | 1989-01-19 | 1989-11-29 | 余国雄 | Caterpillar blackboard brush with dust pan |
| JPH09123680A (en) * | 1995-10-30 | 1997-05-13 | Ricoh Elemex Corp | Writing board |
| JPH10203089A (en) * | 1997-01-21 | 1998-08-04 | Fuoresuta:Kk | White board wiper |
| CN2434149Y (en) * | 2000-06-27 | 2001-06-13 | 朴文山 | Belt wheel eraser |
| CN2491252Y (en) * | 2001-05-14 | 2002-05-15 | 李宜来 | Electrostatic eraser |
| DE202004014482U1 (en) * | 2004-09-15 | 2004-11-25 | Lai, Shyi Hu | Blackboard wiper has cleaning cloth band which is driven over set of brushes to remove and trap dust in housing |
| CN2878091Y (en) * | 2005-08-02 | 2007-03-14 | 周敏 | Non-powered self-dedusting blackboard eraser |
| CN201201456Y (en) * | 2008-06-24 | 2009-03-04 | 包琳玲 | Electrostatic type blackboard eraser |
| CN201437306U (en) * | 2009-06-19 | 2010-04-14 | 上海市晋元高级中学 | Electrostatic dust protection device |
| CN201566349U (en) * | 2009-09-27 | 2010-09-01 | 俞少赢 | Dust-sucking blackboard eraser |
| CN201841844U (en) * | 2010-11-11 | 2011-05-25 | 武俊东 | Dustless blackboard eraser |
| CN202439470U (en) * | 2012-02-20 | 2012-09-19 | 李迅 | Blackboard eraser |
| CN202862950U (en) * | 2012-09-05 | 2013-04-10 | 许征利 | Electrostatic dust absorbing eraser |
| CN202826897U (en) * | 2012-09-12 | 2013-03-27 | 孙永锋 | Electrostatic dust absorption blackboard eraser |
| CN202911408U (en) * | 2012-11-27 | 2013-05-01 | 张力木 | Static electricity dust removal blackboard eraser |
| CN203567426U (en) * | 2013-10-24 | 2014-04-30 | 成都理工大学 | Blackboard eraser allowing dust to be removed |
| CN203600854U (en) * | 2013-10-29 | 2014-05-21 | 张素颖 | Environment-friendly blackboard eraser |
| CN203854388U (en) * | 2014-01-07 | 2014-10-01 | 杜海霞 | Environment-friendly blackboard eraser |
| CN103895430A (en) * | 2014-04-18 | 2014-07-02 | 刘征宏 | Blackboard eraser capable of preventing powder from scattering |
| CN104648005A (en) * | 2014-06-30 | 2015-05-27 | 何小平 | Dust suction blackboard eraser |
| CN204367728U (en) * | 2015-01-20 | 2015-06-03 | 于朔 | A kind of novel blackboard eraser |
| CN206049156U (en) * | 2016-06-29 | 2017-03-29 | 裴萌 | A kind of blackboard eraser for preventing chalk dust from flying upward |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106004185B (en) | 2018-02-27 |
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