CN104015530A - Motor-driven dust-free chalk eraser - Google Patents
Motor-driven dust-free chalk eraser Download PDFInfo
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- CN104015530A CN104015530A CN201410274141.2A CN201410274141A CN104015530A CN 104015530 A CN104015530 A CN 104015530A CN 201410274141 A CN201410274141 A CN 201410274141A CN 104015530 A CN104015530 A CN 104015530A
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- chalk
- dust
- motor
- brush
- planetary gear
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Abstract
The invention discloses a motor-driven dust-free chalk eraser. The motor-driven dust-free chalk eraser comprises a case, an eraser head, a motor, a dust collection structure, a filter net and a power source providing electric energy for the motor and the dust collection structure. The case is provided with a dust collection cavity and a chalk dust storage cavity. The dust collection cavity is provided with a collection port, the eraser head is connected into the dust collection cavity, the erasing portion of the eraser head protrudes out of the collection port, and the motor is connected with the eraser head. The inlet of the dust collection structure faces the collection port, and the discharge port of the dust collection structure faces the chalk dust storage cavity. The chalk dust storage cavity is provided with an exhaust port, and the filter net is arranged on the exhaust port. The motor-driven dust-free chalk eraser is easy and convenient to operate and compact in structure and effectively prevents chalk dust from flying in the process of erasing a blackboard, a sun wheel and a planet wheel are adopted for achieving speed reduction and torsion increase so that the eraser head can erase the blackboard better, and the purpose of saving the labor is achieved. The motor-driven dust-free chalk eraser has the advantage that chalk dust clearing and self cleaning are convenient, and the chalk dust can be used for achieving dry lubrication between gears of a planet wheel reduction gear set.
Description
Technical field
The present invention relates to a kind of eraser for blackboard wiping, particularly a kind of electric dustless chalk brush.
Background technology
In teaching, eraser is a kind of conventional stationery, common eraser produces a large amount of chalk dusts when blackboard wiping, and these chalk dusts fly away in classroom, and Faculty and Students are felt bad very much, chalk dust is quite serious to the harm of human body, wherein on lung, impact is the most serious, and after chalk dust is inhaled into lung, majority is delayed in alveolar, through series of chemical, cause lung's infringement, decline in pulmonary function.
Among the composition of current market chalk, the cadmium metal that amount is higher, after cadmium is sucked by human body, major storage is in liver, kidney and bone tissue, and Long Term Contact cadmium compound can cause pulmonary emphysema, kidney and liver damage.Cadmium is also one of a kind of carcinogenic metallic element simultaneously.
Summary of the invention
Technical problem for existing in prior art, the object of the invention is: provide a kind of easy to use, effectively prevent the electric dustless chalk brush that chalk dust flies away in blackboard wiping process.
Object of the present invention is achieved through the following technical solutions: a kind of electric dustless chalk brush, comprise housing, brush, motor, dust absorbing structure, screen pack and provide the power supply of electric energy for motor and dust absorbing structure, described housing has vacuum chamber and chalk dust containing cavities, vacuum chamber has suction inlet, brush is connected in vacuum chamber and brush cleaning part protrudes from suction inlet, electrical machinery and brushing head connects, dust absorbing structure suction inlet is facing to suction inlet, dust absorbing structure outlet is facing to chalk dust containing cavities, chalk dust containing cavities has exhaust outlet, and described screen pack is arranged on exhaust outlet.
Preferably, also comprise tooth annulus, sun gear, a plurality of planetary gear and described a plurality of planetary gears are limited in to the planetary gear retainer in tooth annulus, described tooth annulus is fixed in vacuum chamber, planetary gear is engaged on respectively on the sun gear cylindrical flank of tooth and respectively and meshes with tooth annulus inner toothed surface, sun gear is connected on motor output shaft, and brush is arranged on planetary gear end face.
Preferably, described planetary gear retainer comprises front retainer, rear retainer, sleeve and bolt, and described sleeve is connected in the axis hole of planetary gear, and described bolt is through sleeve, and planetary gear both ends of the surface are connected with rear retainer with front retainer respectively, described brush is connected on front retainer.
Preferably, described front retainer and brush are all " Y " shape, and described planetary gear is three, are in three protruding parts of brush of " Y " shape described in described three planetary gears are connected to.
Preferably, described chalk dust containing cavities comprises ante-chamber and tail chamber, ante-chamber has lower concave part, lower concave part is connected by swash plate with tail chamber, swash plate bottom tilts to exhaust outlet, ante-chamber is by dust absorbing structure and vacuum chamber conducting, in ante-chamber, be positioned at ante-chamber and vacuum chamber conducting place and be respectively arranged with up and down fluid spoiler and dustproof diffuser plate, fluid spoiler is arranged at lower concave part top, fluid spoiler tilts towards swash plate, dustproof diffuser plate is arranged on exhaust outlet top, between dustproof diffuser plate and swash plate, forms dust inlet.
Preferably, described housing has shank, and described chalk dust containing cavities is arranged in shank.
Preferably, described sun gear, a plurality of planetary gear and tooth annulus form planetary gear train of reduction gears.
Preferably, described chalk dust containing cavities end is provided with a detachable chamber lid.
Preferably, the described motor rack that also comprises, described motor is fixed in housing by motor rack, and described motor is waterproof machine.
Preferably, described chalk dust containing cavities and the perpendicular setting of vacuum chamber.
The present invention has following advantage and effect with respect to prior art:
1, the present invention easy and simple to handle, effectively prevent that chalk dust flies away in blackboard wiping process, and compact conformation, utilizing sun gear and planetary gear to realize deceleration increasing turns round, make the brush can better blackboard wiping, reach labour-saving object, the present invention also has advantages of the cleaning of the chalk dust of convenience simultaneously and self cleans, can also utilize chalk dust to realize dry lubrication between the gear of planetary gear train of reduction gears.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the connection diagram of brush of the present invention and housing.
Fig. 3 is schematic perspective view of the present invention.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment mono-:
A kind of electric dustless chalk brush, comprise housing 1, brush 2, motor 3, motor rack 4, dust absorbing structure 5, screen pack 6, for controlling the switch 7 that starts or close and providing the power supply 8 of electric energy for motor 3 and dust absorbing structure 5, described power supply 8 is lithium battery, housing 1 has vacuum chamber 9 and chalk dust containing cavities 10, chalk dust containing cavities 10 and the perpendicular setting of vacuum chamber 9, vacuum chamber 9 has suction inlet, brush 2 is connected in vacuum chamber 9 and brush 2 cleaning parts protrude from suction inlet, motor 3 is connected with brush 2, dust absorbing structure 5 suction inlets are facing to suction inlet, dust absorbing structure 5 outlets are facing to chalk dust containing cavities 10, chalk dust containing cavities 10 has exhaust outlet, described screen pack 6 is arranged on exhaust outlet, described dust absorbing structure 5 is turbofan, described motor 3 is fixed in housing 1 by motor rack 4, described motor 3 is waterproof machine.
Also comprise tooth annulus 11, sun gear 12, a plurality of planetary gear 13 and described a plurality of planetary gears 13 are limited in to the planetary gear retainer in tooth annulus 11, described tooth annulus 11 is fixed in vacuum chamber 9, planetary gear 13 is engaged on respectively on the sun gear 12 cylindrical flank of tooth and respectively and meshes with tooth annulus 11 inner toothed surface, sun gear is connected on motor output shaft by a screw, and brush 2 is arranged on the end face of planetary gear 13.
Described sun gear 12, a plurality of planetary gear 13 and tooth annulus 11 form planetary gear train of reduction gears.
Concrete, described planetary gear retainer comprises front retainer 14, rear retainer 15, sleeve 16 and bolt 17, described sleeve 16 is connected in the axis hole of planetary gear 13, described bolt 17 is through sleeve 16, and planetary gear 13 both ends of the surface are connected with rear retainer 15 with front retainer 14 respectively, described brush 2 is connected on front retainer 14.Preferably, described front retainer 14 is all " Y " shape with brush 2, and described planetary gear 13 is three, is in three protruding parts of brush 2 of " Y " shape described in described three planetary gears 13 are connected to.
Described chalk dust containing cavities 10 comprises ante-chamber 18 and tail chamber 19, ante-chamber 18 has lower concave part 20, lower concave part 20 is connected by swash plate 21 with tail chamber 19, swash plate 21 bottoms tilt to exhaust outlet, ante-chamber 18 is by dust absorbing structure 5 and vacuum chamber 9 conductings, in ante-chamber 18, be positioned at ante-chamber 18 and be respectively arranged with up and down fluid spoiler 22 and dustproof diffuser plate 23 with vacuum chamber 9 conductings place, fluid spoiler 22 is arranged at lower concave part 20 tops, fluid spoiler 22 tilts towards swash plate 21, dustproof diffuser plate 23 is arranged on exhaust outlet top, and 21 of dustproof diffuser plate 23 and swash plates form dust inlet.
Described housing 1 has shank 24, and described chalk dust containing cavities 10 is arranged in shank 24.Described chalk dust containing cavities 10 ends are provided with a detachable chamber lid 25, concrete, and described detachable chamber lid 25 is arranged at the afterbody of shank 24.
The course of work of the present invention and operation principle: the present invention utilizes sun gear and planetary gear to realize to slow down to increase and turns round, make the brush can better blackboard wiping, reaches labour-saving object.Motor and dust absorbing structure synchronous initiation, dust absorbing structure by being arranged on motor top is in the chalk dust containing cavities in the chalk dust inspiration shank of kicking up after wiping simultaneously, and the air of inspiration flows to swash plate after the fluid spoiler of ante-chamber, under the guiding of swash plate, arrive the screen pack on exhaust outlet and discharge, and chalk dust is because dustproof diffuser plate limits and can not upwards spread, prevent chalk dust from rising and return in vacuum chamber, chalk dust can be stayed in chalk dust containing cavities, can not fly away or spill.
When chalk dust too much need to be cleared up in chalk dust containing cavities, detachable chamber lid is pulled down, chalk dust in chalk dust containing cavities is toppled over out, realize cleaning, motor is waterproof machine, can conveniently clean; Between the gear of planetary gear train of reduction gears, can utilize chalk dust to realize dry lubrication simultaneously, because planetary gear train of reduction gears is arranged in suction inlet, narrow suction inlet in addition, thereby improved the effect of dust suction.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (10)
1. an electric dustless chalk brush, it is characterized in that: comprise housing, brush, motor, dust absorbing structure, screen pack and provide the power supply of electric energy for motor and dust absorbing structure, described housing has vacuum chamber and chalk dust containing cavities, vacuum chamber has suction inlet, brush is connected in vacuum chamber and brush cleaning part protrudes from suction inlet, electrical machinery and brushing head connects, dust absorbing structure suction inlet is facing to suction inlet, dust absorbing structure outlet is facing to chalk dust containing cavities, chalk dust containing cavities has exhaust outlet, and described screen pack is arranged on exhaust outlet.
2. a kind of electric dustless chalk brush according to claim 1, it is characterized in that: also comprise tooth annulus, sun gear, a plurality of planetary gear and described a plurality of planetary gears are limited in to the planetary gear retainer in tooth annulus, described tooth annulus is fixed in vacuum chamber, planetary gear is engaged on respectively on the sun gear cylindrical flank of tooth and respectively and meshes with tooth annulus inner toothed surface, sun gear is connected on motor output shaft, and brush is arranged on planetary gear end face.
3. a kind of electric dustless chalk brush according to claim 2, it is characterized in that: described planetary gear retainer comprises front retainer, rear retainer, sleeve and bolt, described sleeve is connected in the axis hole of planetary gear, described bolt is through sleeve, and planetary gear both ends of the surface are connected with rear retainer with front retainer respectively, described brush is connected on front retainer.
4. a kind of electric dustless chalk brush according to claim 3, it is characterized in that: described front retainer and brush are all " Y " shape, described planetary gear is three, is in three protruding parts of brush of " Y " shape described in described three planetary gears are connected to.
5. a kind of electric dustless chalk brush according to claim 1, it is characterized in that: described chalk dust containing cavities comprises ante-chamber and tail chamber, ante-chamber has lower concave part, lower concave part is connected by swash plate with tail chamber, swash plate bottom tilts to exhaust outlet, ante-chamber is by dust absorbing structure and vacuum chamber conducting, in ante-chamber, be positioned at ante-chamber and vacuum chamber conducting place and be respectively arranged with up and down fluid spoiler and dustproof diffuser plate, fluid spoiler is arranged at lower concave part top, fluid spoiler tilts towards swash plate, dustproof diffuser plate is arranged on exhaust outlet top, between dustproof diffuser plate and swash plate, form dust inlet.
6. a kind of electric dustless chalk brush according to claim 1, is characterized in that: described housing has shank, and described chalk dust containing cavities is arranged in shank.
7. a kind of electric dustless chalk brush according to claim 2, is characterized in that: described sun gear, a plurality of planetary gear and tooth annulus form planetary gear train of reduction gears.
8. a kind of electric dustless chalk brush according to claim 1, is characterized in that: described chalk dust containing cavities end is provided with a detachable chamber lid.
9. a kind of electric dustless chalk brush according to claim 1, is characterized in that: the described motor rack that also comprises, and described motor is fixed in housing by motor rack, and described motor is waterproof machine.
10. a kind of electric dustless chalk brush according to claim 1, is characterized in that: described chalk dust containing cavities and the perpendicular setting of vacuum chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410274141.2A CN104015530A (en) | 2014-06-18 | 2014-06-18 | Motor-driven dust-free chalk eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410274141.2A CN104015530A (en) | 2014-06-18 | 2014-06-18 | Motor-driven dust-free chalk eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104015530A true CN104015530A (en) | 2014-09-03 |
Family
ID=51432653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410274141.2A Pending CN104015530A (en) | 2014-06-18 | 2014-06-18 | Motor-driven dust-free chalk eraser |
Country Status (1)
| Country | Link |
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| CN (1) | CN104015530A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185630A (en) * | 2019-06-19 | 2019-08-30 | 黎明职业大学 | A kind of submersible pump unit with filtering function |
| CN110422000A (en) * | 2019-07-25 | 2019-11-08 | 广小芳 | A kind of hand electric teaching aid that wiping effect is good |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2573699A1 (en) * | 1984-11-28 | 1986-05-30 | Lobez Sagues Manuel | Device for erasing writing from blackboards |
| CN2084886U (en) * | 1990-08-25 | 1991-09-18 | 赵天峰 | Automatic dust-collecting eraser |
| CN2219216Y (en) * | 1995-04-26 | 1996-02-07 | 曹明辉 | Blackboard eraser with means for absorbing chalk dust |
| CN2365085Y (en) * | 1999-04-06 | 2000-02-23 | 吕正良 | Electric sucking dust blackboard eraser |
| CN2373285Y (en) * | 1999-04-12 | 2000-04-12 | 崔金岩 | Bush-type chalk-dust absorbing apparatus |
| CN2438592Y (en) * | 2000-08-07 | 2001-07-11 | 胡晓军 | Active charging dust-cleaning blackboard eraser |
| CN101292852A (en) * | 2008-06-05 | 2008-10-29 | 浙江工业大学 | Double-helix cleaning brush dish |
| CN201217343Y (en) * | 2008-06-20 | 2009-04-08 | 陕西科技大学 | Environment-friendly dust-proof eraser |
| CN203472361U (en) * | 2013-07-26 | 2014-03-12 | 吴婷 | Environment-friendly dust-free chalkboard eraser |
| CN203623240U (en) * | 2013-12-18 | 2014-06-04 | 袁一凡 | Dust-free electric chalk eraser |
-
2014
- 2014-06-18 CN CN201410274141.2A patent/CN104015530A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2573699A1 (en) * | 1984-11-28 | 1986-05-30 | Lobez Sagues Manuel | Device for erasing writing from blackboards |
| CN2084886U (en) * | 1990-08-25 | 1991-09-18 | 赵天峰 | Automatic dust-collecting eraser |
| CN2219216Y (en) * | 1995-04-26 | 1996-02-07 | 曹明辉 | Blackboard eraser with means for absorbing chalk dust |
| CN2365085Y (en) * | 1999-04-06 | 2000-02-23 | 吕正良 | Electric sucking dust blackboard eraser |
| CN2373285Y (en) * | 1999-04-12 | 2000-04-12 | 崔金岩 | Bush-type chalk-dust absorbing apparatus |
| CN2438592Y (en) * | 2000-08-07 | 2001-07-11 | 胡晓军 | Active charging dust-cleaning blackboard eraser |
| CN101292852A (en) * | 2008-06-05 | 2008-10-29 | 浙江工业大学 | Double-helix cleaning brush dish |
| CN201217343Y (en) * | 2008-06-20 | 2009-04-08 | 陕西科技大学 | Environment-friendly dust-proof eraser |
| CN203472361U (en) * | 2013-07-26 | 2014-03-12 | 吴婷 | Environment-friendly dust-free chalkboard eraser |
| CN203623240U (en) * | 2013-12-18 | 2014-06-04 | 袁一凡 | Dust-free electric chalk eraser |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185630A (en) * | 2019-06-19 | 2019-08-30 | 黎明职业大学 | A kind of submersible pump unit with filtering function |
| CN110422000A (en) * | 2019-07-25 | 2019-11-08 | 广小芳 | A kind of hand electric teaching aid that wiping effect is good |
| CN110422000B (en) * | 2019-07-25 | 2021-08-13 | 杨陈澄 | Clean effectual electronic teaching aid of hand-held type |
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Application publication date: 20140903 |