CN102962218B - Device for removing blackboard eraser collected chalk dust - Google Patents
Device for removing blackboard eraser collected chalk dust Download PDFInfo
- Publication number
- CN102962218B CN102962218B CN201210565214.4A CN201210565214A CN102962218B CN 102962218 B CN102962218 B CN 102962218B CN 201210565214 A CN201210565214 A CN 201210565214A CN 102962218 B CN102962218 B CN 102962218B
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- China
- Prior art keywords
- box body
- scraping blade
- turning cylinder
- blackboard eraser
- rotating shaft
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Abstract
The invention discloses a device for removing blackboard eraser collected chalk dust, and belongs to the field of blackboard eraser removing devices. The device comprises a dust storage device and a dust removing device, wherein the dust storage device is an open box body (1); the bottom end of the box body serves as a dust storage part (2); the end part of the box body serves as a dust removing port (3); the dust removing device comprises a rotating shaft (4) and a scrapper (5); the scrapper (5) is arranged on the rotating shaft (4); the rotating shaft (4) is arranged inside the box body (1) through a through hole in the lateral plane of the box body (1); and the upper end of the scrapper (5) arranged on the rotating shaft (4) is equal to or slightly higher than that of the dust removing port (3) at the end part of the box body. By arranging the dust removing port, the rotating shaft and the scrapper, the dust removing effect of the blackboard eraser is improved, and the defects in the prior art that the dust is not ideally removed and the like are solved; and meanwhile the upper end of the scrapper arranged on the rotating shaft is equal to or slightly higher than that of the shoulder of the lateral plane of the box body, and a groove and a polyvinyl chloride (PVC) plastic sheet are designed, so that the blackboard eraser is tightly contacted with the scrapper on the rotating shaft when being pressed downwards, and the cleaning effect of the blackboard eraser is improved.
Description
Technical field
The present invention relates to the cleaning device of blackboard eraser, be specifically related to a kind of cleaning blackboard eraser and collect gray device of chalk.
Background technology
Existing blackboard for teaching, a kind of is fixing individual plates, and one side uses, and is finished and wipes out chalk writings and can reuse, as general Arc shape blackboard and plane blackboard for education etc., another kind is the blackboard for education extending usable floor area, as about some pieces liftable, or the moveable combined blackboard in left and right, but the blackboard for education of these two kinds of forms, all again to can use chalk-writing through teacher or student by after chalk writings wiped clean, write or obliterating time, a large amount of chalk dusts adheres on blackboard eraser, if do not removed, on blackboard, chalk trace is left when obliterating, affect students ' reading, chalk dust on blackboard eraser is conventional pats or beats way removing, during beating, chalk dust flies upward, contaminated environment, and easily by unhealthful in people's suction body, thus affect whole teaching environment.Chinese Patent Application No. 912210435, file discloses a kind of powder cleaning box for eraser, for removing and collect the chalk dust on blackboard brush.Its primary structure is that box body has upper cover, have level to hang in box body to put except whitewash to put with perpendicular on box sidewall that lug forms remove powder device, an ash-draining gate is arranged at box body bottom, described except whitewashing by base plate, and bristle, ash-falling hole are formed; Blackboard eraser still will be placed in box and knock by the technical scheme of this patent, just can remove the ash on it.
Chinese Patent Application No. 032558937, file discloses blackboard eraser chalk dust springing storing box, it by box body, scrape slip and form, this scrapes slip suitably spacing can be arranged at box body place suitable for reading abreast, also can hand in length and breadth
Fork-shaped formula is arranged, and box body lateral surface is provided with armrest support.But the blackboard brush accumulating chalk dust in use relies on manual all around to carry out wiping scraping on slip, and chalk dust major part kicks down in box body, but produce powder ash and be still unfavorable for health environment in classroom; Chinese Patent Application No. 032558937, file discloses a kind of soot blower, and soot blower housing is shaped with ash disposal mouth, and chalk storage tank, at housing built with round brush, round brush is equipped with rocking handle.
Owing to being equipped with round brush on soot blower, when blackboard eraser being put on soot blower mouth, shake round brush can remove the chalk dust on blackboard eraser, chalk dust under removing falls into soot blower and chalk dust can not be caused to fly upward, soot blower is provided with chalk storage tank, replace chalk holder, structure is simple, easy to use, but the contact surface due to bristle and blackboard eraser in actual mechanical process is less, bristle is because the form of its pencil simultaneously, when clearing up, no matter adopt flexible plastics bristle or rigid steel wire, its ash-removal effect is unsatisfactory.
Summary of the invention
the technical problem that invention will solve
For all deficiencies of existing blackboard eraser cleaning device, the defect such as especially manually clear up blackboard eraser chalk dust or cleaning chalk dust effect is undesirable, the invention discloses a kind of cleaning blackboard eraser and collect gray device of chalk, the clean of the degree of depth can be carried out to blackboard eraser, teaching health environment can not be affected simultaneously, thus produce dust pollution.
technical scheme
Gray device of chalk collected by a kind of cleaning blackboard eraser, this device comprises storage apparatus for ash and deashing device, described storage apparatus for ash is an opening box body, the bottom of box body is the grey portion of storage, for to the storage of clearing up chalk dust, the end of box body is ash disposal mouth, is positioned at box body side shoulder, and face blackboard eraser will be able to cleared up is contacted with deashing device by ash disposal mouth; Described deashing device, comprise turning cylinder and scraping blade, described scraping blade is arranged on the rotating shaft, turning cylinder is arranged at tray interior by the through hole of box body side, the upper end of described setting scraping blade is on the rotating shaft contour or a little more than the ash disposal mouth of box body end, can make scraping blade close contact when exerting pressure to blackboard eraser and on turning cylinder downwards.
Described deashing device also comprises the rocker actuator be fixedly connected with turning cylinder one end, and rocker actuator comprises rocking handle and crank, by the rocking handle on rocker actuator and nut, be fixedly connected with turning cylinder, turning cylinder is moved in a circle, and drives the scraping blade on turning cylinder, blackboard eraser is cleared up.Described storage ash portion is movable pull box body, and box body is provided with handle, effectively can carry out timing cleaning to chalk dust.The face of cylinder of described turning cylinder is provided with the groove of annular array, scraping blade is embedded in groove and turning cylinder compact siro spinning technology.The degree of depth of described groove is the 1/8-1/9 of scraping blade width, and the width of groove is 1.2 of scraping blade thickness, ensure that scraping blade should keep enough rigidity when clearing up blackboard eraser, also will ensure the compact siro spinning technology between scraping blade and rotating shaft.The upper end of described setting scraping blade on the rotating shaft, higher than box body side shoulder 1-6mm, realizes the face close contacting fit that will clean with blackboard eraser.
The top of described box body end is provided with seal cover, make box body form a sealing device, by seal cover, blackboard eraser is exerted pressure, ensure that both hands can not be stained with any dust, form confined space simultaneously and can not produce any dust pollution, thus have impact on the environment in classroom.Described scraping blade is blade-like or zigzag, and jagged form better can remove the dust at dead angle on blackboard eraser, realizes deep clean.Described scraping blade is hard plastic sheet, has good mechanical property, meets the requirement of deashing.The described turning cylinder face of cylinder is provided with hairbrush slotted eye bristle is installed, blackboard eraser can be cleared up with scraping blade acting in conjunction and collect chalk dust.
beneficial effect
(1) the present invention is by arranging cleaning door, turning cylinder and scraping blade, improves the ash-removal effect of blackboard eraser, solves the defects such as original deashing is undesirable.
(2) on turning cylinder, the upper end of scraping blade is contour or a little more than box body side shoulder, can making scraping blade close contact when exerting pressure to blackboard eraser and on turning cylinder downwards, improve the cleaning effect of blackboard eraser.
(3) movable pull box body is set, box body is equipped with handle, effectively can carry out timing cleaning to chalk dust.
(4) face of cylinder of turning cylinder is provided with the groove of annular array, scraping blade is embedded in groove and turning cylinder compact siro spinning technology, the degree of depth of groove and the optimum choice of width, and the selection of squeegee material, ensure that scraping blade should keep enough rigidity when clearing up blackboard eraser, also will ensure the compact siro spinning technology between scraping blade and rotating shaft.
Accompanying drawing explanation
Fig. 1 is cleaning blackboard eraser collection gray device of chalk internal structure schematic diagram;
Fig. 2 is cleaning blackboard eraser collection gray device of chalk right view;
Fig. 3 is cleaning blackboard eraser collection gray device of chalk scraper structure schematic diagram;
Fig. 4 is cleaning blackboard eraser collection gray device of chalk turning cylinder front view;
Fig. 5 collects the gray device of chalk turning cylinder right side for cleaning blackboard eraser and looks enlarged diagram;
Fig. 6 is cleaning blackboard eraser collection gray device of chalk front view;
Fig. 7 clears up blackboard eraser to collect gray device of chalk turning cylinder front view in embodiment 4.
1 box body, the 2 grey portions of storage, 3 ash disposal mouths, 4 turning cylinders, 5 scraping blades, 6 handles, 7 nuts, 8 rocking handles, 9 cranks, 10 box body side shoulders, 11 sawtooth, 12 crowns, 13 turning cylinder outside diameters, circular diameter in 14 turning cylinders, 15 grooves, 16 packing rings.
Specific embodiment
embodiment 1
As shown in Figure 1, gray device of chalk collected by a kind of cleaning blackboard eraser, this device comprises storage apparatus for ash and deashing device, described storage apparatus for ash is an opening box body 1, the bottom of box body 1 is the grey portion 2 of storage, and for the storage of clearing up chalk dust, the end of box body 1 is ash disposal mouth 3, be positioned at box body side shoulder 10(as shown in Figure 2), face blackboard eraser will be able to cleared up is contacted with deashing device by ash disposal mouth 3; Described deashing device, comprise turning cylinder 4 and scraping blade 5, described scraping blade 5 is arranged on turning cylinder 4, turning cylinder 4 is arranged at tray interior by the through hole of box body side, the upper end etc. of described setting scraping blade on the rotating shaft, higher than the ash disposal mouth of box body end, can make scraping blade 5 close contact when exerting pressure to blackboard eraser and on turning cylinder downwards.
Described deashing device also comprises the rocker actuator be fixedly connected with turning cylinder 4 one end, rocker actuator comprises rocking handle 8 and crank 9, by the rocking handle 8 on rocker actuator and nut 7, be fixedly connected with turning cylinder 4; packing ring 16(can be set between rocking handle 8 and nut 7 as shown in Figure 6); turning cylinder is moved in a circle, and drives the scraping blade 5 on turning cylinder, blackboard eraser is cleared up.Described storage ash portion is movable pull box body, box body is provided with handle 6, effectively can carry out timing cleaning to chalk dust.The face of cylinder of described turning cylinder is provided with the groove 15 of annular array, the number of groove is identical with scraping blade number, and scraping blade is embedded in groove and turning cylinder compact siro spinning technology.As shown in Figure 4 and Figure 5, turning cylinder outside diameter 13 is 18mm, in turning cylinder, circular diameter 14 is 10mm, the degree of depth of described groove 15 is 3.5mm, scraping blade width 29mm, the width 0.5mm of groove, scraping blade thickness is 0.6mm, ensure that scraping blade should keep enough rigidity when clearing up blackboard eraser, also will ensure the compact siro spinning technology between scraping blade and rotating shaft.The upper end etc. of described setting scraping blade on the rotating shaft, higher than box body side shoulder 10, realizes the face close contacting fit that will clean with blackboard eraser.
The top of box body end is provided with seal cover, make box body form a sealing device, by seal cover, blackboard eraser is exerted pressure, ensure that both hands can not be stained with any dust, form confined space simultaneously and can not produce any dust pollution, thus have impact on the environment in classroom.As shown in Figure 3, described scraping blade 5 is zigzag, and crown 12 angle of sawtooth 11 is set to 60 degree of acute angles, better can remove the dust at dead angle on blackboard eraser, realize deep clean.Scraping blade is hard plastic sheet, has good mechanical property, meets the requirement of deashing.
Embodiment 2
Concrete structure is with embodiment 1, difference is the ash disposal mouth 1mm higher than box body end of described setting scraping blade on the rotating shaft, the degree of depth of described groove is 1/9 of scraping blade width, the number inserting scraping blade is five, groove is equal with scraping blade number, and the width of groove is 1.2 with the ratio of scraping blade thickness, described indention parallel is in axis direction.Described scraping blade is blade-like.The turning cylinder face of cylinder is provided with hairbrush slotted eye simultaneously and bristle is installed, blackboard eraser can be cleared up with scraping blade acting in conjunction and collect chalk dust.
Embodiment 3
Concrete structure is with embodiment 2, and difference is the ash disposal mouth 6mm higher than box body end of described setting scraping blade on the rotating shaft, and the degree of depth of described groove is 1/8 of scraping blade width, and the width of groove is 1.2 with the ratio of scraping blade thickness.Described scraping blade is blade-like.Simultaneously on the turning cylinder face of cylinder, direction of paralleling to the axis is provided with hairbrush slotted eye and is provided with bristle, can clear up blackboard eraser collect chalk dust with scraping blade acting in conjunction.
Embodiment 4
Concrete structure is with embodiment 3, difference is the ash disposal mouth 4mm higher than box body end of described setting scraping blade on the rotating shaft, turning cylinder 4 is perpendicular on axis direction, the face of cylinder is also provided with hairbrush slotted eye and is provided with bristle, can clear up blackboard eraser collect chalk dust with scraping blade acting in conjunction, groove 15 direction and turning cylinder 4 axis direction are sharp angle as shown in Figure 7, preferably 30 degree, scraping blade is more effective dust out when removing blackboard eraser, and the resistance of deashing is little, not easily makes scraping blade damage.
Gray device of chalk collected by the cleaning blackboard eraser prepared of above-described embodiment, have passed and arranges cleaning door, turning cylinder and scraping blade, improve the ash-removal effect of blackboard eraser, and solve the defects such as original deashing is undesirable, dedusting effect is desirable in practice.On turning cylinder, the upper end of scraping blade is contour or a little more than box body side shoulder, can making scraping blade close contact when exerting pressure to blackboard eraser and on turning cylinder downwards, improve the cleaning effect of blackboard eraser.Movable pull box body is set, box body is equipped with handle, effectively can carry out timing cleaning to chalk dust.The groove of annular array, the degree of depth of groove and the optimum choice of width, and the selection of squeegee material, ensure that scraping blade should keep enough rigidity when clearing up blackboard eraser, also will ensure the compact siro spinning technology between scraping blade and rotating shaft.
Claims (1)
1. gray device of chalk collected by a cleaning blackboard eraser, it is characterized in that: this device comprises storage apparatus for ash and deashing device, described storage apparatus for ash is an opening box body (1), the bottom of box body is the grey portion of storage (2), the upper end of box body is ash disposal mouth (3), and described deashing device comprises turning cylinder (4) and scraping blade (5), described scraping blade (5) is arranged on turning cylinder (4), and it is inner that turning cylinder (4) is arranged at box body (1) by the through hole of box body (1) side, described deashing device also comprises the rocker actuator be fixedly connected with turning cylinder one end, rocker actuator comprises rocking handle (8) and crank (9), by the rocking handle (8) on rocker actuator and nut (7), be fixedly connected with turning cylinder (4), the face of cylinder of described turning cylinder is provided with the groove (15) of annular array, scraping blade is embedded in groove and turning cylinder compact siro spinning technology, the number of described scraping blade is 5, the degree of depth of described groove (15) is the 1/8-1/9 of scraping blade width, the width of groove (15) is 1.2 times of scraping blade thickness, ash disposal mouth (3) 1-6mm of upper end higher than cassette upper end of scraping blade (5) is on the rotating shaft set, described scraping blade (5) is zigzag, scraping blade (5) is hard PVC, the face of cylinder of described turning cylinder (4) is provided with hairbrush slotted eye bristle is installed, groove length direction and turning cylinder (4) axis direction are 30 degree of sharp angle, described storage ash portion (2) is movable pull box body, and movable pull box body is provided with handle (6).
2. gray device of chalk collected by cleaning blackboard eraser according to claim 1, and it is characterized in that, the top of described cassette upper end is provided with seal cover, makes box body form a sealing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210565214.4A CN102962218B (en) | 2012-12-24 | 2012-12-24 | Device for removing blackboard eraser collected chalk dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210565214.4A CN102962218B (en) | 2012-12-24 | 2012-12-24 | Device for removing blackboard eraser collected chalk dust |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102962218A CN102962218A (en) | 2013-03-13 |
| CN102962218B true CN102962218B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210565214.4A Expired - Fee Related CN102962218B (en) | 2012-12-24 | 2012-12-24 | Device for removing blackboard eraser collected chalk dust |
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| Country | Link |
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| CN (1) | CN102962218B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105710057B (en) * | 2016-04-08 | 2017-09-08 | 安徽工程大学 | A kind of device cleared up and collect chalk dust on blackboard eraser |
| CN105945024A (en) * | 2016-05-10 | 2016-09-21 | 闫柏君 | Small blackboard eraser dust-free cleaner |
| CN107838062A (en) * | 2017-09-30 | 2018-03-27 | 蚌埠国显科技有限公司 | A kind of LCD slivers brush cleaning device |
| CN107649431A (en) * | 2017-10-11 | 2018-02-02 | 宁波鄞州康圣机械科技有限公司 | A kind of Environmental-protecting dust-removing equipment |
| CN110211452A (en) * | 2019-05-20 | 2019-09-06 | 温丁福 | A kind of chemical equation teaching demonstration frame |
| CN115465003B (en) * | 2022-10-27 | 2023-06-20 | 浙大城市学院 | Blackboard eraser cleaner |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1667431A (en) * | 1927-07-12 | 1928-04-24 | Reginald Bragonier | Eraser cleaner |
| WO1986004302A1 (en) * | 1985-01-22 | 1986-07-31 | Gordon Sydney Jensen | Dust extractors |
| CN2477404Y (en) * | 2001-04-25 | 2002-02-20 | 沈旭光 | Eraser powder collector |
| CN2647589Y (en) * | 2003-07-24 | 2004-10-13 | 沈尹诺 | Blackboard eraser chalk dust springing storing box |
| CN2875621Y (en) * | 2006-03-09 | 2007-03-07 | 上海市闵行区浦江第三中学 | Dust remover of blackboard eraser |
| CN201659103U (en) * | 2010-04-09 | 2010-12-01 | 朱皓峰 | Blackboard eraser dust collector |
| CN202962937U (en) * | 2012-12-24 | 2013-06-05 | 黄玥 | Chalk dust collecting device for cleaning blackboard erasers |
-
2012
- 2012-12-24 CN CN201210565214.4A patent/CN102962218B/en not_active Expired - Fee Related
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| CN102962218A (en) | 2013-03-13 |
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Granted publication date: 20150610 Termination date: 20171224 |
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| CF01 | Termination of patent right due to non-payment of annual fee |