CN103434315A - Dust-proof blackboard eraser and application method thereof - Google Patents
Dust-proof blackboard eraser and application method thereof Download PDFInfo
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- CN103434315A CN103434315A CN2013102947533A CN201310294753A CN103434315A CN 103434315 A CN103434315 A CN 103434315A CN 2013102947533 A CN2013102947533 A CN 2013102947533A CN 201310294753 A CN201310294753 A CN 201310294753A CN 103434315 A CN103434315 A CN 103434315A
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Abstract
The invention relates to a dust-proof blackboard eraser and an application method thereof, and the dust-proof blackboard eraser is designed for solving the technical problems that existing similar products are poorer in dust-proof effect and difficult in chalk dust storage. The dust-proof blackboard eraser comprises an eraser body and a base, wherein the eraser body is arranged in a groove in the middle of the base, and a chamber for storing chalk dust is formed between the eraser body and the inner wall of the base. The dust-proof blackboard eraser is characterized in that the periphery of a groove port at the lateral wall end of the groove of the base is provided with a flexible sheet; an eraser body side is higher than the port side of the flexible sheet; when the base is pressed, the position of the eraser body side is changed, the flexible sheet and the eraser body side touch a blackboard at the same time, the eraser body side and the port side of the flexible sheet are same in height, a gap is formed between the eraser body and the port of the flexible sheet, an accommodating chamber is opened, and the chalk dust enters into the accommodating chamber from the gap between the eraser body and the flexible sheet; the eraser body, the inner wall of the base and the flexible sheet form the accommodating chamber for stopping and storing the chalk dust together; meanwhile, a magnetic piece is arranged on the base or in the eraser body. The dust-proof blackboard eraser is reasonable in structural design, convenient in use, labor-saving and good in dust-proof effect.
Description
Technical field
The present invention relates to school supply and stationery, specifically refer to a kind of dust-proof blackboard eraser and using method thereof.
Background technology
Blackboard, chalk and blackboard eraser are requisite school supply and stationery in education activities.Wherein, blackboard refers to a kind of plane that can repeated writing, and the plate face is hard, and black, the color such as blackish green, white are arranged; Simultaneously, blackboard is formed through disposable compacting by high polymer alloy particle and epoxy resin mostly now, can attract mutually with magnetisable material.The teacher writes to educate the student on blackboard with chalk.Yet, during with ordinary blackboard eraser wiping chalk word, the phenomenon that can cause chalk powder to exist everywhere, affect quality of instruction, contaminated environment, the harm teachers and students are healthy.
The phenomenon that chalk dust flies upward everywhere when overcoming blackboard wiping, people have also developed some dustproof and blackboard erasers easy to use.As the Granted publication CN201712367U of Chinese patent literature publication, Granted publication day 2011.01.19, the utility model name is called " Multifunctional magnetic blackboard "; And the Granted publication CN101758713A of Chinese patent literature publication, Shen Qing Publication day 2010.06.30, denomination of invention is " dust-proof blackboard eraser ", but all because of expensive or DeGrain, can not get promoting.Simultaneously, ordinary blackboard eraser effort comparatively all when blackboard wiping, and weak effect, speed are slow.These problems also are not resolved so far.
Summary of the invention
For overcoming above-mentioned deficiency, technical problem to be solved by this invention is that the present situation for prior art provides a kind of dust-proof blackboard eraser and using method thereof that facilitates wiping.Its objective is and be achieved through the following technical solutions.
A kind of dust-proof blackboard eraser, this blackboard eraser comprises rub body and pedestal, and the middle part of described pedestal has groove, and rub body is arranged in this groove, forms the chamber that stores chalk dust between the inwall of described rub body and described pedestal; The recess sidewall notch periphery that it is characterized in that described pedestal is provided with flexible sheets; The rub body face is higher than the port surface of flexible sheets, while pressing pedestal, the position of rub body face changes, flexible sheets and rub body face are touched blackboard simultaneously, the port surface of rub body face and flexible sheets is with high, form gap between rub body and flexible sheets, accommodating cavity opens wide, and chalk dust enters in accommodating cavity by the gap between rub body and flexible sheets; The inwall of described rub body, pedestal, flexible sheets jointly are formed for backstop and store the accommodating cavity of chalk dust.This blackboard eraser is when being pressed on blackboard wiping, and chalk dust enters in accommodating cavity by the gap between rub body and flexible sheets; While unclamping this blackboard eraser, restore rub body face position, and the rub body face is higher than the port surface of flexible sheets, the accommodating cavity closure, and rub body is touched mutually with flexible sheets, and chalk dust is stored in accommodating cavity.
According to the said structure feature, also can on described pedestal or in described rub body, also be provided with for described blackboard eraser is adsorbed on to the magnetic part on blackboard, when magnetic part and blackboard adhesive, the position of rub body face changes, flexible sheets and rub body face are touched blackboard simultaneously, and the port surface of rub body face and flexible sheets, with high, forms gap between rub body and flexible sheets, accommodating cavity opens wide, and chalk dust enters in accommodating cavity by the gap between rub body and flexible sheets; The inwall of described rub body, pedestal, flexible sheets jointly are formed for backstop and store the accommodating cavity of chalk dust.The i.e. magnetic part of this blackboard eraser and blackboard adhesive, this blackboard eraser is on blackboard during wiping, and chalk dust enters in accommodating cavity by the gap between rub body and flexible sheets; When magnetic part separates with blackboard, rub body ejects the port surface of flexible sheets, the space closure formed between rub body and flexible sheets, and rub body is touched mutually with flexible sheets, the accommodating cavity closure, chalk dust is stored in accommodating cavity.
Described rub body is arranged on the middle part of described pedestal, described accommodating cavity be looped around described rub body around.Above-mentioned rub body is arranged at the structure at pedestal center, for chalk dust that this blackboard eraser is got off wiping relatively easily by backstop and be stored in accommodating cavity.
Be provided with elastomer between the groove of described rub body face and pedestal.Described elastomer employing spring or described rub body adopt the elastomeric elements such as sponge, and when blackboard eraser, in the situation that stressed, the position of rub body face changes, thereby make the rub body face by than the port surface hypermutation of flexible sheets being and its same height originally.Side at rub body is provided with catch, to prevent long-time use of rub body, causes deformation.
Between described rub body and flexible sheets, the rub body mask of gap location is gradient.Thereby, while between described rub body and flexible sheets, producing gap, be convenient to chalk dust and enter in pedestal during at blackboard wiping when rub body and flexible sheets; Or flexible sheets is under nature, flexible sheets exceed described groove ends actinal surface the rub body part be shaped as similar terrace with edge.
Described flexible sheets is windshield wiper blade formula rubber catch.The windshield wiper blade formula design of flexible sheets, improved dust removing effects and facilitated wiping; In order to make this flexible sheets backstop chalk dust better, make chalk dust enter molten putting in chamber, the designing requirement flexible sheets of flexible sheets has rational flexibility or shape, and the ora terminalis place of flexible sheets is comparatively thin.Simultaneously, the material selection of flexible sheets requires elasticity and the hardness of flexible sheets can reach corresponding requirement.And flexible sheets is designed to the shape of windshield wiper blade, also is convenient to chalk dust backstop in accommodating cavity, and easily chalk dust is stored in accommodating cavity.Shape for flexible sheets also can design according to the needs of actual conditions, as: flexible sheets is looped around around rub body; Simultaneously, the material of flexible sheets and planform also can be selected as required.
Be provided with the catch of flexible sheets in described accommodating cavity.This catch is arranged on the inwall of base recess, or designs according to the actual needs; As: this catch is arranged on rub body.When blackboard wiping, gapped between this catch and flexible sheets; When unclamping pedestal or pedestal when blackboard takes off, touching mutually between catch and flexible sheets.This catch stores chalk dust to accommodating cavity and plays the effect that secondary guarantees.
When the above-mentioned concrete structure to flexible sheets limits further, described magnetic part is fixed on described pedestal, or between described rub body and described pedestal, or be embedded in described rub body.The structure setting of three kinds of magnetic parts of said structure, also can select as required, as long as can reach the technology order that prevents dust and store chalk dust of the present invention.
Described pedestal is semielliptical shape.The semielliptical shape structure of pedestal is convenient to the centre of the palm and is gripped this use blackboard eraser, also can adopt as similar semielliptical shape structures such as mouses simultaneously, and hemispherical dome structure.
The another side of described pedestal is provided with the wet type rub body, and this side group seat is provided with lid, and lid is provided with storage cap, is provided with storage chamber in lid.Said structure is in conjunction with existing Wet-dry blackboard eraser, and the design feature that storage chalk or gel ink pen chamber are set in similar blackboard eraser.
According to the said structure feature, be that its using method is: described rub body is by pressing pedestal or magnetic part is adsorbed on blackboard, and, when blackboard wiping, described rub body and described flexible sheets touch blackboard simultaneously, the position of rub body face changes, and the port surface of rub body face and flexible sheets is with high; Now, between flexible sheets and rub body, form gap, accommodating cavity opens wide, and chalk dust enters in accommodating cavity by the gap between rub body and flexible sheets; When unclamping pedestal or pedestal when blackboard takes off, rub body ejects the port surface of flexible sheets, the space closure formed between rub body and flexible sheets, and rub body is touched mutually with flexible sheets, the accommodating cavity closure, chalk dust is stored in accommodating cavity; Simultaneously, when blackboard takes off this blackboard eraser, first the flexible sheets by this blackboard eraser left and right sides is pressed toward inboard rub body place, make the flexible sheets on blackboard touch mutually with rub body, gap-closing between flexible sheets and rub body, accommodating cavity becomes closure by opening wide, the chalk dust backstop of gap location and be sealed in accommodating cavity after, then this this blackboard eraser is taken off from blackboard.In above-mentioned using method, rub body arranges magnetic part or magnetic part is not set and all can realize technical purpose of the present invention and technique effect, the magneticaction of magnetic part is adsorbed in blackboard except being convenient to this blackboard eraser, when using, it is used for changing the height of rub body, the position of rub body face is changed, and the active force of its magnetic force is identical with the purpose that the position of pressing pedestal and make the rub body face changes.
Compared with prior art, the present invention makes the blackboard eraser automatic absorbing on blackboard by magnetic part is set, like this, when blackboard wiping, do not need to the blackboard direction, to exert pressure again, only need to promote blackboard eraser it is slided on blackboard can be like a cork by the letter written with chalk wiped clean, the chalk dust after wiping by backstop in accommodating cavity.Simultaneously, the set flexible sheets that is similar to windshield wiper blade on the port periphery of pedestal, can and be stored in it in container chamber the chalk dust backstop of wiping, and can not hinder again the slip of blackboard eraser on blackboard, takes into account laborsaving and dustproof.Be that the present invention has effectively solved chalk dust and disperses everywhere, contribute to teaching to carry out better, the protection teachers and students' is healthy.
The accompanying drawing explanation
Fig. 1 is that embodiments of the invention one are used the status architecture schematic diagram, and in figure, A section has done to confine, and dotted line and arrow are flexible sheets stress and deformation state and are subject to force direction.
Fig. 2 is the A section structure for amplifying schematic diagram of Fig. 1.
Fig. 3 is embodiments of the invention one original state structural representations, and in figure, B section has done to confine.
Fig. 4 is the B section structure for amplifying schematic diagram of Fig. 3.
Fig. 5 is the improved structure schematic diagram of Fig. 1, and in figure, magnetic part is arranged in rub body.
Fig. 6 is embodiments of the invention two structural representations, and in figure, magnetic part is arranged between rub body and described pedestal.
Fig. 7 is embodiments of the invention three structural representations, and in figure, magnetic part and pedestal are connected as a single entity.
Fig. 8 is the improved structure schematic diagram of Fig. 7, and in figure, magnetic part is arranged in rub body.
Fig. 9 is improved structure schematic diagram of the present invention, and in figure, pedestal has increased wet type rub body, lid, storage cap.
In figure, the name of sequence number is called: 1, pedestal, 2, rub body, 3, magnetic part, 4, flexible sheets, 11, groove.
The specific embodiment
Now by reference to the accompanying drawings, the invention will be further described.
Embodiment mono-as shown in Figure 1 to 4, and this dust-proof blackboard eraser comprises:
Said structure has various ways to form this gap, as: as described in the limit end of rub body face be provided with chamfering, certain gradient is arranged; Or flexible sheets is under nature, it is terrace with edge that flexible sheets exceeds the shape of rub body part of described groove ends actinal surface similar, and this gap is convenient to chalk dust and is entered in accommodating cavity.The elastic strength that the above elastic strength by described rub body is greater than described flexible sheets realizes, and, for the elastic strength that makes described rub body is greater than the elastic strength of described flexible sheets, is provided with spring between described rub body and base bottom, is provided with magnetic part in pedestal.Simultaneously, the cleaning for ease of chalk dust in the normal use of spring and accommodating cavity, also can arrange baffle plate between spring and rub body; Be provided with the catch of flexible sheets in accommodating cavity, accommodating cavity stored to chalk dust and play the effect that secondary guarantees.During this blackboard eraser is taken off or after taking off, because the touching mutually all the time of rub body and flexible sheets, the external world that rub body seals up flexible sheets imports and exports, i.e. clearance seal between rub body and flexible sheets, and chalk dust is blocked in accommodating cavity.Like this, chalk dust just can not fly upward all the time everywhere; In addition, between this blackboard eraser and blackboard, by the suction-operated of magnetic part, make blackboard wiping become quicker, effectively.
During wiping, only need promote gently this blackboard eraser it is slided on blackboard, can be by the letter written with chalk wiped clean, the chalk dust after wiping can be blocked in accommodating cavity.Due to backstop the storage effect of flexible sheets, the chalk dust all the time not meeting outer effusion accommodating cavity of gear in accommodating cavity; After using a period of time, only need this blackboard eraser is taken off from blackboard, in the cleaning pedestal, the chalk dust of accommodating cavity can repeat to use again.
According to said structure and use characteristic, embodiment bis-as shown in Figure 6, and when magnetic part is fixed on pedestal, this embodiment omits the setting of spring, also can change by the position of rub body face, and the gap between rub body and flexible sheets is opened or closed.The position of above-mentioned rub body face changes by self sponge material, and, after pedestal is under pressure, is passed to rub body and realizes.According to structure and the principle of above-described embodiment two, embodiment tri-as shown in Figure 7 is also like this; , as shown in Figure 8, the magnetic part structure of embodiment tri-is improved, magnetic part also can be arranged in rub body simultaneously.As shown in Figure 9, according to the prior art feature, embodiment bis-as shown in Figure 6 also can be provided with in the another side of pedestal the wet type rub body, and this side group seat is provided with lid, and lid is provided with storage cap, is provided with storage chamber in lid.Thereby be convenient to the storage in lid of chalk, neutral pen, and this blackboard eraser is wiped and is used as wet dry Double-purpose blackboard.
Technological means of the present invention, and unrestricted technical scope of the present invention, those skilled in the art do apparent improvement in conjunction with common practise to the present invention, within all falling into technical scope of the present invention.As increased the structure of the existing similar blackboard eraser such as fan or static on the structure of this blackboard eraser, further improve absorption and the collecting effect of its chalk dust.
Claims (10)
1. a dust-proof blackboard eraser, this blackboard eraser comprises rub body (2) and pedestal (1), and the middle part of described pedestal has groove (11), and rub body is arranged in this groove, forms the chamber that stores chalk dust between the inwall of described rub body and described pedestal; Groove (11) the sidewall notch periphery that it is characterized in that described pedestal (1) is provided with flexible sheets (4); The rub body face is higher than the port surface of flexible sheets, while pressing pedestal, the position of rub body face changes, flexible sheets and rub body are touched blackboard simultaneously, the port surface of rub body face and flexible sheets is with high, form gap between rub body and flexible sheets, accommodating cavity opens wide, and chalk dust enters in accommodating cavity by the gap between rub body and flexible sheets; The inwall of described rub body, pedestal, flexible sheets jointly are formed for backstop and store the accommodating cavity of chalk dust.
2. a dust-proof blackboard eraser, this blackboard eraser comprises rub body (2) and pedestal (1), and the middle part of described pedestal has groove (11), and rub body is arranged in this groove, forms the chamber that stores chalk dust between the inwall of described rub body and described pedestal; It is characterized in that described pedestal (1) above or in described rub body (2) also is provided with for described blackboard eraser being adsorbed on to the magnetic part (3) on blackboard, the groove of pedestal (11) sidewall end notch periphery is provided with flexible sheets (4); The rub body face is higher than the port surface of flexible sheets, when magnetic part and blackboard adhesive, the position of rub body face changes, flexible sheets and rub body are touched blackboard simultaneously, the port surface of rub body face and flexible sheets is with high, form gap between rub body and flexible sheets, accommodating cavity opens wide, and chalk dust enters in accommodating cavity by the gap between rub body and flexible sheets; The inwall of described rub body, pedestal, flexible sheets jointly are formed for backstop and store the accommodating cavity of chalk dust.
3. dust-proof blackboard eraser according to claim 1 and 2, is characterized in that described rub body (2) is arranged on the middle part of described pedestal (1), described accommodating cavity be looped around described rub body around.
4. dust-proof blackboard eraser according to claim 1 and 2, is characterized in that being provided with elastomer between the groove (11) of described rub body (2) face and pedestal (1).
5. dust-proof blackboard eraser according to claim 1 and 2, is characterized in that the rub body mask of gap location between described rub body (2) and flexible sheets (4) is gradient.
6. dust-proof blackboard eraser according to claim 1 and 2, is characterized in that described flexible sheets (4), for windshield wiper blade formula rubber catch, is provided with the catch of flexible sheets in described accommodating cavity.
7. dust-proof blackboard eraser according to claim 2, is characterized in that described magnetic part (3) is fixed on described pedestal (1) upper, or between described rub body (2) and described pedestal, or be embedded in described rub body.
8. dust-proof blackboard eraser according to claim 1 and 2, is characterized in that described pedestal (1) is semielliptical shape.
9. dust-proof blackboard eraser according to claim 1 and 2, is characterized in that the another side of described pedestal (1) is provided with the wet type rub body, and this side group seat is provided with lid, and lid is provided with the storage lid, is provided with the storage chamber in lid.
10. the using method of dust-proof blackboard eraser according to claim 1 and 2, it is characterized in that described rub body (2) is by pressing pedestal (1) or magnetic part (3) is adsorbed on blackboard, when blackboard wiping, described rub body and described flexible sheets (4) touch blackboard simultaneously, the position of rub body face changes, and the port surface of rub body face and flexible sheets is with high; Now, between flexible sheets and rub body, form gap, accommodating cavity opens wide, and chalk dust enters in accommodating cavity by the gap between rub body and flexible sheets; When unclamping pedestal or pedestal when blackboard takes off, rub body ejects the port surface of flexible sheets, the space closure formed between rub body and flexible sheets, and rub body is touched mutually with flexible sheets, the accommodating cavity closure, chalk dust is stored in accommodating cavity; Simultaneously, when blackboard takes off this blackboard eraser, first the flexible sheets by this blackboard eraser left and right sides is pressed toward inboard rub body place, make the flexible sheets on blackboard touch mutually with rub body, gap-closing between flexible sheets and rub body, accommodating cavity becomes closure by opening wide, the chalk dust backstop of gap location and be sealed in accommodating cavity after, then this this blackboard eraser is taken off from blackboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310294753.3A CN103434315B (en) | 2013-07-11 | 2013-07-11 | Dust-proof blackboard eraser and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310294753.3A CN103434315B (en) | 2013-07-11 | 2013-07-11 | Dust-proof blackboard eraser and application method thereof |
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| Publication Number | Publication Date |
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| CN103434315A true CN103434315A (en) | 2013-12-11 |
| CN103434315B CN103434315B (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310294753.3A Expired - Fee Related CN103434315B (en) | 2013-07-11 | 2013-07-11 | Dust-proof blackboard eraser and application method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465698A (en) * | 2013-08-28 | 2013-12-25 | 陈浩 | Dust collecting blackboard eraser and application method thereof |
| CN103895427A (en) * | 2014-02-25 | 2014-07-02 | 陈浩 | Simple dust removal blackboard eraser and using method thereof |
| CN105584266A (en) * | 2014-10-24 | 2016-05-18 | 吴晨煜 | Multifunctional blackboard eraser |
| CN105946408A (en) * | 2016-06-26 | 2016-09-21 | 钱煜琴 | Improved type chalk wiper |
| CN108973459A (en) * | 2018-07-23 | 2018-12-11 | 唐佳怡 | Multifunctional blackboard for education cleaner |
| CN109017071A (en) * | 2018-08-06 | 2018-12-18 | 张欣欣 | A kind of dust-proof teaching blackboard |
| CN112590433A (en) * | 2020-12-11 | 2021-04-02 | 安徽文香信息技术有限公司 | Dust-proof blackboard eraser for intelligent classroom and control system thereof |
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| CN87205976U (en) * | 1987-04-06 | 1988-02-03 | 朴龙守 | Writing board wiper with dust collector |
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| US5455976A (en) * | 1993-10-06 | 1995-10-10 | Eon S. Kim | Apparatus for automatically brushing chalk powder off from a blackboard eraser |
| WO2003002358A1 (en) * | 2001-06-29 | 2003-01-09 | Yulong Wang | Eraser selectively openable and closable apertures |
| CN2923373Y (en) * | 2006-05-04 | 2007-07-18 | 刘琨 | Magnetic blackboard eraser with chalk powder collection cabin |
| KR20090114765A (en) * | 2008-04-30 | 2009-11-04 | 권태복 | Device for suction the chalk powder of blackboard eraser |
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| CN87205976U (en) * | 1987-04-06 | 1988-02-03 | 朴龙守 | Writing board wiper with dust collector |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465698A (en) * | 2013-08-28 | 2013-12-25 | 陈浩 | Dust collecting blackboard eraser and application method thereof |
| CN103465698B (en) * | 2013-08-28 | 2015-11-18 | 陈浩 | Dust-removing blackboard eraser and using method thereof |
| CN103895427A (en) * | 2014-02-25 | 2014-07-02 | 陈浩 | Simple dust removal blackboard eraser and using method thereof |
| CN103895427B (en) * | 2014-02-25 | 2016-06-29 | 陈浩 | Simple and easy dust-removing blackboard eraser and using method thereof |
| CN105584266A (en) * | 2014-10-24 | 2016-05-18 | 吴晨煜 | Multifunctional blackboard eraser |
| CN105946408A (en) * | 2016-06-26 | 2016-09-21 | 钱煜琴 | Improved type chalk wiper |
| CN107415542A (en) * | 2016-06-26 | 2017-12-01 | 钱煜琴 | A kind of Novel chalk eraser |
| CN108973459A (en) * | 2018-07-23 | 2018-12-11 | 唐佳怡 | Multifunctional blackboard for education cleaner |
| CN109017071A (en) * | 2018-08-06 | 2018-12-18 | 张欣欣 | A kind of dust-proof teaching blackboard |
| CN112590433A (en) * | 2020-12-11 | 2021-04-02 | 安徽文香信息技术有限公司 | Dust-proof blackboard eraser for intelligent classroom and control system thereof |
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|---|---|
| CN103434315B (en) | 2015-02-18 |
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Granted publication date: 20150218 Termination date: 20160711 |