CN204322858U - Be convenient to clean automatic dust-absorption eraser - Google Patents

Be convenient to clean automatic dust-absorption eraser Download PDF

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Publication number
CN204322858U
CN204322858U CN201420620118.XU CN201420620118U CN204322858U CN 204322858 U CN204322858 U CN 204322858U CN 201420620118 U CN201420620118 U CN 201420620118U CN 204322858 U CN204322858 U CN 204322858U
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China
Prior art keywords
gear
fan
speed increasing
dust
driven wheel
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Expired - Fee Related
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CN201420620118.XU
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Chinese (zh)
Inventor
朱德天
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朱德天
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Priority to CN201420620118.XU priority Critical patent/CN204322858U/en
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Publication of CN204322858U publication Critical patent/CN204322858U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model proposes and be convenient to clean automatic dust-absorption eraser, belong to field of stationery.Traditional blackboard eraser all only has the function simply wiping chalk dust, the health of chalk dust splashes to teacher and classmate has certain influence, in order to overcome the former deficiency, utilize speed increasing gear group, guide gear drive combined centrifugal fan all the time directional-rotation produces centrifugal suction, chalk dust is sucked in dust dividing plate, blackboard eraser housing surrounding is furnished with the hook being convenient to disassembly, cleaning screen pack, be convenient to cleaning automatic dust-absorption eraser comprise: rectangle housing, protecting cover in T-shaped, rubber weather strip, air-vent, woollens cylinder, cylinder axis, driven wheel, extend hook, hook button, screen pack, fan shaft, centrifugal fan, fan gear, dividing plate, suction port, dust-separation plate washer, gear-box, speed increasing gear group, guide gear, gear-box elliptical aperture, dividing plate locating dowel, locating hole.

Description

Be convenient to clean automatic dust-absorption eraser
Technical field
The utility model is convenient to clean automatic dust-absorption eraser, belongs to field of stationery, and particularly blackboard eraser is convenient to the function of cleaning, automatic dust absorption.
Background technology
Traditional blackboard eraser all only has the function simply wiping chalk dust, and the health of chalk dust splashes to teacher and classmate has certain influence.At present, there is dust absorption blackboard eraser, such as publication number is that the patent of CN202656742U discloses a kind of dust absorption blackboard eraser, comprise some roller brush, described roller brush is connected with dust exhaust apparatus respectively, is provided with dirt powder box outside dust exhaust apparatus, dirt powder box side is provided with battery, battery is connected with dust exhaust apparatus with roller brush respectively, is provided with hairbrush button between battery and roller brush, is provided with dust suction button between battery and dust exhaust apparatus.This dust absorption blackboard eraser relies on electric power to drive roller brush to rotate and dust exhaust apparatus work, is not easy to cleaning, relies on electric power (battery provides power) dust suction, can not automatic dust absorption, is also not easy to cleaning; The blackboard eraser can being convenient to clean automatic dust absorption still belongs to blank.
Summary of the invention
The utility model overcomes above-mentioned deficiency, proposition is convenient to clean automatic dust-absorption eraser, speed increasing gear group, guide gear is utilized to drive combined centrifugal fan directional-rotation to produce centrifugal suction, sucked by chalk dust in dust dividing plate, blackboard eraser housing surrounding is furnished with the hook being convenient to disassembly, cleaning screen pack.
The technical solution of the utility model is: be convenient to clean automatic dust-absorption eraser, comprise: rectangle housing, protecting cover in T-shaped, rubber weather strip, air-vent, woollens cylinder, cylinder axis, driven wheel, driven wheel, extend hook, hook button, screen pack, fan shaft, centrifugal fan, fan gear, dividing plate, suction port, dust-separation plate washer, gear-box, speed increasing gear group, speed increasing gear group, guide gear, gear-box elliptical aperture, dividing plate locating dowel, locating hole, what the inside of rectangle housing was installed has woollen fabric roll, cylinder axis, driven wheel, driven wheel, that installs below rectangle housing has rubber weather strip, and the extension that has that the side of rectangle housing connects is linked up with, and what in T-shaped, the inside of protecting cover was installed has screen pack, fan shaft, centrifugal fan, fan gear, dividing plate locating dowel, in T-shaped protecting cover two inclined-planes on have air-vent, there is hook button side, the upper EDS maps of dividing plate 14 have suction port, dust-separation plate washer, locating hole, front end is connected with gear-box, dust-separation plate washer above have ventilation groove, what the inside of gear-box was installed has speed increasing gear group, speed increasing gear group, guide gear, fan gear, there are two pairs of symmetrical gear-box elliptical apertures the two sides of gear-box, and pinion and the driven wheel of speed increasing gear group are meshing, gear wheel and fan gear meshing, pinion and the driven wheel of speed increasing gear group are meshing, gear wheel and guide gear meshing, guide gear is meshing with fan gear again, and being connected with dividing plate above of rectangle housing, have dividing plate locating dowel to fix inside the locating hole above dividing plate, in T-shaped, protecting cover is connected with dividing plate locating dowel, outside has the inside extending hook insertion hook button to be fixed, and that installs in the middle of woollens cylinder has cylinder axis, what front end was installed has driven wheel and driven wheel, and dismounting is convenient in one end that one end of fan gear axis has splined shaft directly to insert fan shaft, fan shaft evenly install above has centrifugal fan, what the inside, two inclined-planes of T-shaped upper protecting cover was installed has screen pack.
Woollens cylinder drives driven wheel to rotate when being subject to extraneous frictional force, when driven wheel turns clockwise and fan gear shape in an angle, and drive the pinion of speed increasing gear group speed increasing gear group entirety to be moved right, move to gear wheel just meshing with fan gear, the two ends of speed increasing gear group axis are just combined with the right side of gear-box elliptical aperture, fan gear can rotate higher than the several times rotating speed of driven wheel clockwise under the drive of speed increasing gear group, when driven wheel turns clockwise and guide gear form an elevation angle, and drive the pinion of speed increasing gear group speed increasing gear group entirety to be moved right, the two ends moving to speed increasing gear group axis are combined with the right side of gear-box elliptical aperture, the gear wheel of speed increasing gear group is separated with guide gear.
When woollens cylinder drives driven wheel to be rotated counterclockwise when being subject to extraneous frictional force, an elevation angle is formed with fan gear, and drive the pinion of speed increasing gear group speed increasing gear group entirety to be moved to the left, the two ends moving to speed increasing gear group axis are combined with the left side of gear-box elliptical aperture, the gear wheel of speed increasing gear group is separated with fan gear, when driven wheel is rotated counterclockwise and guide gear shape in an angle, and drive the pinion of speed increasing gear group speed increasing gear group entirety to be moved to the left, the two ends moving to speed increasing gear group axis are combined with the left side of gear-box elliptical aperture, gear wheel and the guide gear of speed increasing gear group are meshing, and drive guide gear to be rotated counterclockwise, guide gear simultaneously drive fan gear rotates higher than the several times rotating speed of driven wheel clockwise.
Fan gear drives centrifugal fan synchronous rotary by fan shaft atwirl simultaneously, because the space in dividing plate, dust-separation plate washer, T-shaped between protecting cover forms a kind of cell of scroll casing shape, centrifugal fan atwirl produce simultaneously centrifugal suction, the inside that the chalk dust on woollens cylinder is sucked centrifugal fan from suction port, air is pressed to protecting cover inside T-shaped from the groove of dust-separation plate washer together with chalk dust by centrifugal force both sides, then air from the both sides that screen pack flows out, chalk dust stays protecting cover inside T-shaped.
Beneficial effect: hand-held the utility model is with wiping back and forth on the blackboard of letter written with chalk, woollens cylinder is in speed increasing gear group, can only slow circumvolve under the resistance of fan gear and combined centrifugal fan, in the process rotated, produce certain friction with blackboard the chalk dust on blackboard is taken away, woollens cylinder is clockwise or be rotated counterclockwise, centrifugal fan is rotate higher than the several times rotating speed of driven wheel clockwise all the time, centrifugal suction can be produced centrifugal fan is atwirl simultaneously, chalk dust is sucked and stores, air then flows out from air-vent, when chalk dust is stored into some, take off protecting cover in T-shaped, with brush, the chalk dust inside dust-separation plate washer and screen pack is removed, if the chalk dust on woollens cylinder and screen pack too much can rinse by direct water.Vibrational power flow of the present utility model is ingenious, and pick-up performance is convenient to well cleaning.
Accompanying drawing explanation
Accompanying drawing 1 is for ease of cleaning the front view of automatic dust-absorption eraser;
Accompanying drawing 2 is for ease of the front view of cleaning automatic dust-absorption eraser rectangle housing assembly;
Accompanying drawing 3 is for ease of front view below protecting cover assembly in cleaning automatic dust-absorption eraser T-shaped;
Accompanying drawing 4 is for ease of the front view of cleaning automatic dust-absorption eraser clapboard assembly;
Accompanying drawing 5 is for ease of the schematic diagram of cleaning automatic dust-absorption eraser gear-box;
Accompanying drawing 6 is for ease of the schematic diagram of cleaning automatic dust-absorption eraser gear-box elliptical aperture.
Detailed description of the invention
By reference to the accompanying drawings shown in 1-6, be convenient to cleaning automatic dust-absorption eraser and comprise: rectangle housing 1, protecting cover 2 in T-shaped, rubber weather strip 3, air-vent 4, woollens cylinder 5, cylinder axis 6, driven wheel 7a, driven wheel 7b, extend hook 8, hook button 9, screen pack 10, fan shaft 11, centrifugal fan 12, fan gear 13, dividing plate 14, suction port 15, dust-separation plate washer 16, gear-box 17, speed increasing gear group 18a, speed increasing gear group 18b, guide gear 19, gear-box elliptical aperture 20, dividing plate locating dowel 21, locating hole 22, what the inside of rectangle housing 1 was installed has woollen fabric roll 5, cylinder axis 6, driven wheel 7a, driven wheel 7b, that installs below rectangle housing 1 has rubber weather strip 3, and the having of side connection of rectangle housing 1 extends hook 8, and what in T-shaped, the inside of protecting cover 2 was installed has screen pack 10, fan shaft 11, centrifugal fan 12, fan gear 13, dividing plate locating dowel 21, in T-shaped protecting cover 2 two inclined-planes on have air-vent 4, there is hook button 9 side, the upper EDS maps of dividing plate 14 have suction port 15, dust-separation plate washer 16, locating hole 22, front end is connected with gear-box 17, dust-separation plate washer 16 above have ventilation groove, what the inside of gear-box 17 was installed has speed increasing gear group 18a, speed increasing gear group 18b, guide gear 19, fan gear 13, there are two pairs of symmetrical gear-box elliptical apertures 20 two sides of gear-box 17, and pinion and the driven wheel 7a of speed increasing gear group 18a are meshing, gear wheel and fan gear 13 meshing, pinion and the driven wheel 7b of speed increasing gear group 18b are meshing, gear wheel and guide gear 19 meshing, guide gear 19 is meshing with fan gear 13 again, being connected with dividing plate 14 above of rectangle housing 1, and have dividing plate locating dowel 21 to fix inside the locating hole above dividing plate 14, in T-shaped, protecting cover 2 is connected with dividing plate locating dowel, outside has the inside extending hook 8 insertion hook button 9 to be fixed, and that installs in the middle of woollens cylinder 5 has cylinder axis 6, what front end was installed has driven wheel 7a and driven wheel 7b, dismounting is convenient in one end that one end of fan gear 13 axis has splined shaft directly to insert fan shaft 11, fan shaft 11 install above evenly has centrifugal fan 12, what the inside, two inclined-planes of T-shaped upper protecting cover 2 was installed has screen pack 10.
Woollens cylinder 5 drives driven wheel 7a to rotate when being subject to extraneous frictional force, when driven wheel 7a turns clockwise and fan gear 13 shape in an angle, and drive the pinion of speed increasing gear group 18a speed increasing gear group 18a entirety to be moved right, move to gear wheel just meshing with fan gear 13, the two ends of speed increasing gear group 18a axis are just combined with the right side of gear-box elliptical aperture 20, fan gear 13 can rotate higher than the several times rotating speed of driven wheel 7a clockwise under the drive of speed increasing gear group 18a, when driven wheel 7b turns clockwise and guide gear 19 form an elevation angle, and drive the pinion of speed increasing gear group 18b speed increasing gear group 18b entirety to be moved right, the two ends moving to speed increasing gear group 18b axis are combined with the right side of gear-box elliptical aperture 20, the gear wheel of speed increasing gear group 18b is separated with guide gear 19.
When woollens cylinder 5 drives driven wheel 7a to be rotated counterclockwise when being subject to extraneous frictional force, an elevation angle is formed with fan gear 13, and drive the pinion of speed increasing gear group 18a speed increasing gear group 18a entirety to be moved to the left, the two ends moving to speed increasing gear group 18a axis are combined with the left side of gear-box elliptical aperture 20, the gear wheel of speed increasing gear group 18a is separated with fan gear 13, when driven wheel 7b is rotated counterclockwise and guide gear 19 shape in an angle, and drive the pinion of speed increasing gear group 18b speed increasing gear group 18b entirety to be moved to the left, the two ends moving to speed increasing gear group 18b axis are combined with the left side of gear-box elliptical aperture 20, gear wheel and the guide gear 19 of speed increasing gear group 18b are meshing, and drive guide gear 19 to be rotated counterclockwise, guide gear 19 simultaneously drive fan gear 13 rotates higher than the several times rotating speed of driven wheel 7b clockwise.
Fan gear 13 drives centrifugal fan 12 synchronous rotary by fan shaft 11 atwirl simultaneously, due to dividing plate 14, dust-separation plate washer 16, space in T-shaped between protecting cover forms a kind of cell of scroll casing shape, centrifugal fan 12 produces centrifugal suction atwirl simultaneously, chalk dust on woollens cylinder 5 is sucked the inside of centrifugal fan 12 from suction port 15, by centrifugal force, air is pressed to together with chalk dust the both sides of protecting cover 2 inside T-shaped from the groove of dust-separation plate washer 16, then air flows out from screen pack 10, chalk dust stays the both sides of protecting cover 2 inside in T-shaped.
According to above-mentioned the utility model, be convenient to cleaning automatic dust-absorption eraser in use, hand-held blackboard eraser is with wiping back and forth on the blackboard of letter written with chalk, woollens cylinder is in speed increasing gear group, can only slow circumvolve under the resistance of fan gear and combined centrifugal fan, in the process rotated, produce certain friction with blackboard the chalk dust on blackboard is taken away, woollens cylinder turns clockwise and drives the pinion of speed increasing gear group to be rotated counterclockwise by driven wheel, the gear wheel of speed increasing gear group is along with pinion synchronous rotary, and drive fan gear and centrifugal fan rotate with the rotating speed higher than driven wheel several times clockwise, the pinion of speed increasing gear group is driven to turn clockwise by driven wheel when woollens cylinder is rotated counterclockwise, the gear wheel of speed increasing gear group is along with pinion synchronous rotary, and drive guide gear to be rotated counterclockwise, guide gear again drive fan gear and centrifugal fan rotates with the rotating speed higher than driven wheel several times clockwise, incompetent woollens cylinder is clockwise or be rotated counterclockwise, centrifugal fan is rotate higher than the several times rotating speed of driven wheel clockwise all the time, centrifugal suction can be produced centrifugal fan is atwirl simultaneously, the both sides that chalk dust on rubber weather strip periphery and woollens cylinder sucks protecting cover in T-shaped are stored, air then flows out from air-vent, when chalk dust is stored into some, the extension at rectangle housing two ends hook is smashed pressing from hook take out, in T-shaped, protecting cover just can be separated with rectangle housing, with brush, the chalk dust inside dust-separation plate washer and screen pack is removed, if the chalk dust on woollens cylinder and screen pack too much can rinse by direct water, to dry on bonnet protecting cover in T-shaped just can continue to use.

Claims (4)

1. be convenient to clean automatic dust-absorption eraser, comprise: rectangle housing (1), protecting cover (2) in T-shaped, rubber weather strip (3), air-vent (4), woollens cylinder (5), cylinder axis (6), driven wheel (7a), driven wheel (7b), extend hook (8), hook button (9), screen pack (10), fan shaft (11), centrifugal fan (12), fan gear (13), dividing plate (14), suction port (15), dust-separation plate washer (16), gear-box (17), speed increasing gear group (18a), speed increasing gear group (18b), guide gear (19), gear-box elliptical aperture (20), dividing plate locating dowel (21), locating hole (22), is characterized in that: what the inside of rectangle housing (1) was installed has woollen fabric roll (5), cylinder axis (6), driven wheel (7a), driven wheel (7b), that installs below rectangle housing (1) has rubber weather strip (3), (8) are linked up with in the extension that has that the side of rectangle housing (1) connects, and what in T-shaped, the inside of protecting cover (2) was installed has screen pack (10), fan shaft (11), centrifugal fan (12), fan gear (13), dividing plate locating dowel (21), in T-shaped protecting cover (2) two inclined-planes on have air-vent (4), there is hook button (9) side, the upper EDS maps of dividing plate (14) have suction port (15), dust-separation plate washer (16), locating hole (22), front end is connected with gear-box (17), dust-separation plate washer (16) above have ventilation groove, what the inside of gear-box (17) was installed has speed increasing gear group (18a), speed increasing gear group (18b), guide gear (19), fan gear (13), there are two pairs of symmetrical gear-box elliptical apertures (20) two sides of gear-box (17), and pinion and the driven wheel (7a) of speed increasing gear group (18a) are meshing, gear wheel and fan gear (13) meshing, pinion and the driven wheel (7b) of speed increasing gear group (18b) are meshing, gear wheel and guide gear (19) meshing, guide gear (19) is meshing with fan gear (13) again, being connected with dividing plate (14) above of rectangle housing (1), have dividing plate locating dowel (21) to fix inside locating hole above dividing plate (14), in T-shaped, protecting cover (2) is connected with dividing plate locating dowel, outside has the inside extending hook (8) insertion hook button (9) to be fixed, and that installs in the middle of woollens cylinder (5) has cylinder axis (6), what front end was installed has driven wheel (7a) and driven wheel (7b), dismounting is convenient in one end that one end of fan gear (13) axis has splined shaft directly to insert fan shaft (11), fan shaft (11) install above evenly has centrifugal fan (12), what the inside, two inclined-planes of T-shaped upper protecting cover (2) was installed has screen pack (10).
2. be convenient to according to claim 1 clean automatic dust-absorption eraser, it is characterized in that woollens cylinder (5) drives driven wheel (7a) to rotate when being subject to extraneous frictional force, when driven wheel (7a) turns clockwise and fan gear (13) shape in an angle, and drive the pinion of speed increasing gear group (18a) speed increasing gear group (18a) entirety to be moved right, move to gear wheel just meshing with fan gear (13), the two ends of speed increasing gear group (18a) axis are just combined with the right side of gear-box elliptical aperture (20), fan gear (13) can rotate higher than the several times rotating speed of driven wheel (7a) clockwise under the drive of speed increasing gear group (18a), when driven wheel (7b) turns clockwise and guide gear (19) form an elevation angle, and drive the pinion of speed increasing gear group (18b) speed increasing gear group (18b) entirety to be moved right, the two ends moving to speed increasing gear group (18b) axis are combined with the right side of gear-box elliptical aperture (20), the gear wheel of speed increasing gear group (18b) is separated with guide gear (19).
3. be convenient to according to claim 1 clean automatic dust-absorption eraser, when it is characterized in that woollens cylinder (5) drives driven wheel (7a) to be rotated counterclockwise when being subject to extraneous frictional force, an elevation angle is formed with fan gear (13), and drive the pinion of speed increasing gear group (18a) speed increasing gear group (18a) entirety to be moved to the left, the two ends moving to speed increasing gear group (18a) axis are combined with the left side of gear-box elliptical aperture (20), the gear wheel of speed increasing gear group (18a) is separated with fan gear (13), when driven wheel (7b) is rotated counterclockwise and guide gear (19) shape in an angle, and drive the pinion of speed increasing gear group (18b) speed increasing gear group (18b) entirety to be moved to the left, the two ends moving to speed increasing gear group (18b) axis are combined with the left side of gear-box elliptical aperture (20), gear wheel and the guide gear (19) of speed increasing gear group (18b) are meshing, and drive guide gear (19) to be rotated counterclockwise, guide gear (19) simultaneously drive fan gear (13) rotates higher than the several times rotating speed of driven wheel (7b) clockwise.
4. be convenient to according to claim 1 clean automatic dust-absorption eraser, it is characterized in that fan gear (13) drives centrifugal fan (12) synchronous rotary by fan shaft (11) atwirl simultaneously, due to dividing plate (14), dust-separation plate washer (16), space in T-shaped between protecting cover forms a kind of cell of scroll casing shape, centrifugal fan (12) produces centrifugal suction atwirl simultaneously, chalk dust on woollens cylinder (5) is sucked the inside of centrifugal fan (12) from suction port (15), by centrifugal force, air is pressed to the inner both sides of protecting cover T-shaped (2) from the groove of dust-separation plate washer (16) together with chalk dust, then air flows out from screen pack (10), chalk dust stays the inner both sides of protecting cover in T-shaped (2).
CN201420620118.XU 2014-10-25 2014-10-25 Be convenient to clean automatic dust-absorption eraser Expired - Fee Related CN204322858U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420620118.XU CN204322858U (en) 2014-10-25 2014-10-25 Be convenient to clean automatic dust-absorption eraser

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Application Number Priority Date Filing Date Title
CN201420620118.XU CN204322858U (en) 2014-10-25 2014-10-25 Be convenient to clean automatic dust-absorption eraser

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105856928A (en) * 2016-06-03 2016-08-17 河北工业大学 Zero-energy-consumption wet type dust collection board eraser
CN112011371A (en) * 2020-09-09 2020-12-01 李菲 Two-stage gas producer for glass production of environmental protection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105856928A (en) * 2016-06-03 2016-08-17 河北工业大学 Zero-energy-consumption wet type dust collection board eraser
CN112011371A (en) * 2020-09-09 2020-12-01 李菲 Two-stage gas producer for glass production of environmental protection

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C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150513

Termination date: 20151025