CN108407511A - A kind of automatic dust absorption environment-friendly dust-proof eraser - Google Patents
A kind of automatic dust absorption environment-friendly dust-proof eraser Download PDFInfo
- Publication number
- CN108407511A CN108407511A CN201810510518.8A CN201810510518A CN108407511A CN 108407511 A CN108407511 A CN 108407511A CN 201810510518 A CN201810510518 A CN 201810510518A CN 108407511 A CN108407511 A CN 108407511A
- Authority
- CN
- China
- Prior art keywords
- dust
- lead screw
- blackboard
- touching
- blackboard eraser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L21/00—Blackboard or slate cleaning devices
- B43L21/02—Blackboard or slate cleaning devices with means for absorbing the chalk dust
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L21/00—Blackboard or slate cleaning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L21/00—Blackboard or slate cleaning devices
- B43L21/04—Wiper holders
Abstract
The present invention relates to a kind of automatic dust absorption environment-friendly dust-proof erasers,Belong to teaching equipment technical field,The driving mechanism includes the first lead screw motor,First lead screw,First nut seat,First motor bearing block,Second lead screw motor,Second lead screw,Second nut seat and the second motor bearing seat,The blackboard eraser portion includes fixed plate,Blackboard eraser pedestal,Bristle and flannelette,The extruding force regulating mechanism includes the first adjustment spring,First adjusting rod,First adjusts elliptic wheel,Adjustable plate,Second adjusts elliptic wheel,Second adjusting rod,Second adjustment spring and adjusting cylinder,The dust collection mechanism includes dust catcher,Rectangle support,Sweep-up pipe and dust hood,The water mist dust-removing mechanism includes water fog generator and connecting tube,Chalk writing on automatic cleaning blackboard,Scale removal process is convenient and efficient,It is not easy to leave white trace,And the dust around blackboard eraser portion can be absorbed in time,Keep good air quality in classroom,Improve the efficiency of blackboard-cleaning,It is time saving and energy saving.
Description
Technical field
The present invention relates to a kind of automatic dust absorption environment-friendly dust-proof erasers, belong to teaching equipment technical field.
Background technology
Blackboard is one of essential teaching facilities in school instruction equipment, although electronic instruction just gradually pushes away now
Extensively, but black board teaching is still most common in existing teaching, and teacher can update plate at any time according to demand in black board teaching
Book, a usual class, which gets off, can usually write completely entire blackboard, break then need student student on duty to erase the board so as to be abandoned or divorced by one's husband class use,
Blackboard eraser in the prior art is all small-sized easily to be grasped, and it is small to brandish erasing area every time, due to body and black when blackboard wiping
Plate is parallel, therefore is inconvenient to exert a force, and cleaning is got up time-consuming and laborious；Dust from flying in scale removal process, not only endangers student on duty
Health, also have prodigious injury to the health of student in classroom, while can be accumulated on desk and fall one layer of dust, influence
Teach indoor sanitation；For shorter student, also to stand by adminiclies such as stooles and carry out blackboard wiping, exist certain
Security risk.Although some mechanized equipments, which exist in the prior art, carries out blackboard wiping, there are still dust cannot
The problem of removing in time, and some teacher's written handwritings compare firmly, cause to be easy to leave white trace when blackboard wiping；It is long
There are blackboard eraser portions, and untight phenomenon is contacted with blackboard after time use, causes wiping effect undesirable, influences the effect to erase the board
Rate.
Invention content
The present invention clears up blackboard in view of the deficienciess of the prior art, provide a kind of automatic dust absorption environment-friendly dust-proof eraser automatically
On chalk writing, scale removal process is convenient and efficient, is not easy to leave white trace, and can absorb the dust around blackboard eraser portion in time,
Good air quality in classroom is kept, the efficiency of blackboard-cleaning is improved, it is time saving and energy saving.
The technical solution that the present invention solves above-mentioned technical problem is as follows：A kind of automatic dust absorption environment-friendly dust-proof eraser, including power
Driving mechanism, blackboard eraser portion, extruding force regulating mechanism, dust collection mechanism and water mist remove trace mechanism, and the driving mechanism includes first
Bar motor, the first lead screw, the first nut seat, first motor bearing block, the second lead screw motor, the second lead screw, the second nut seat and
Second motor bearing seat, first lead screw motor are mounted on the left side of blackboard, and one end of first lead screw is mounted on first
In lead screw motor, the other end is mounted on the right side of blackboard by first motor bearing block, and the first nut seat is mounted on the first lead screw
On, second lead screw motor is mounted on the left side of blackboard, and one end of second lead screw is mounted in the second lead screw motor, separately
One end is mounted on the right side of blackboard by the second motor bearing seat, and the second nut seat is mounted on the second lead screw, the blackboard eraser portion
Including fixed plate, blackboard eraser pedestal, bristle and flannelette, the blackboard eraser pedestal is mounted in fixed plate, and blackboard eraser pedestal section is T
Bristle is installed on type, blackboard eraser pedestal both sides, and flannelette is installed in the T-type end of blackboard eraser pedestal, and the extruding force regulating mechanism includes
First adjustment spring, the first adjusting rod, first adjust elliptic wheel, adjustable plate, the second adjusting elliptic wheel, the second adjusting rod, second
Adjustment spring and adjusting cylinder, the first of the first adjusting rod adjusts boom end is mounted on first left side for adjusting elliptic wheel by shaft
In focus, the other end of the first adjusting rod is mounted on after sequentially passing through fixed plate and the first adjustment spring on the first nut seat, the
Two adjusting rods second adjust boom end by shaft be mounted on second adjust elliptic wheel left focus on, the second adjusting rod it is another
One end is mounted on after sequentially passing through fixed plate and the second adjustment spring on the second nut seat, and the adjusting cylinder is by adjusting cylinder
Holder is mounted in fixed plate, and the cylinder rod for adjusting cylinder is connect by shaft with adjustable plate, and the dust collection mechanism includes
Dust catcher, rectangle support, sweep-up pipe and dust hood, the dust catcher are mounted on by rectangle support in fixed plate, the dust suction
Pipe includes left side sweep-up pipe and right side sweep-up pipe, and the dust hood includes left side dust hood and right side dust hood, and the left side is inhaled
One end of dirt pipe is connected to left side dust hood, and the other end is connect with dust catcher, one end and the right side dust suction of the right side sweep-up pipe
Cover connection, the other end are connect with dust catcher, and the left side dust hood and right side dust hood are installed on blackboard eraser base portion, the water
Mist dedusting mechanism includes water fog generator and connecting tube, and the water fog generator is mounted on rectangle support, the blackboard eraser base portion
Inside setting water mist portals, and the water mist portals one end and atmosphere after flannelette, blackboard eraser base portion and fixed plate, the other end
It is connect with water fog generator by connecting tube.
The beneficial effects of the invention are as follows：By the way that extruding force regulating mechanism is arranged, the spacing in blackboard eraser portion and blackboard can be realized
From adjusting, avoid using for a long time and cause the low problem of blackboard eraser wiping efficiency after abrasion；By the way that dust collection mechanism is arranged, to wiping
The dust generated when wiping is effectively absorbed, and is improved and is taught indoor air quality；Trace mechanism is removed by the way that water mist is arranged, is avoided because black
Writing caused by plate writing too depth wipes halfway phenomenon；Chalk writing on automatic cleaning blackboard, scale removal process facilitates fast
Victory is not easy to leave white trace, and can absorb the dust around blackboard eraser portion in time, keeps good air quality in classroom, carries
The efficiency of high blackboard-cleaning, it is time saving and energy saving.
Based on the above technical solution, the present invention can also be improved as follows.
Further, further include dust sensor, the dust sensor is mounted on dust catcher, and the dust sensor is logical
Signal wire is crossed to be electrically connected with dust catcher.
Advantageous effect using above-mentioned further scheme is, by setting dust sensor, can to detect dust concentration,
To transmit a signal to dust catcher, the suction of dust catcher makes corresponding adjustment in turn.
Further, dismountable dust collecting box is set inside the dust catcher, and the dust collecting box occurs with water mist
Device is connected to.
Advantageous effect using above-mentioned further scheme is, by being passed through water mist inside dust catcher, to realize dust and water
Mist combines and forms liquid dust, convenient for discharge.
Further, the left side dust hood and right side dust hood are respectively provided with air suction opening on the side side wall of bristle.
Advantageous effect using above-mentioned further scheme is that pick-up performance is more thorough.
Further, it is respectively provided with dust cover on the outside of first lead screw and the second lead screw, the dust cover is mounted on blackboard.
Advantageous effect using above-mentioned further scheme is the internal structure for being conducive to protect equipment, avoids making for a long time
Ash is fallen with dust accumulation, keeps good health.
Further, further include the first touching mechanism and the second touching mechanism, first touching mechanism includes the first touching
Switch and the first touching head, second touching mechanism include the second touching switch and the second touching head, and first touching is opened
It closes on the side wall of right side dust hood, the first touching head is mounted on first motor bearing block, second touching
Switch is mounted on the dust hood of right side, and the second touching head is mounted on the second motor bearing seat, first touching switch
It is in same horizontal line with the first touching head, second touching switch is in the second touching head in same horizontal line.
Advantageous effect using above-mentioned further scheme is that, by the first touching mechanism of setting and the second touching mechanism, have
The moving situation in effect detection blackboard eraser portion, when the first touching switch touches the first touching head, the first lead screw motor reversion, when the
When two touching switch touch the second touching head, the reversion of the second lead screw motor is wiped at this point, blackboard eraser portion back moves.
Further, the switch of the first lead screw motor and the second lead screw motor is set as radio remote control switch.
Advantageous effect using above-mentioned further scheme is to be convenient for remote control switch, more convenient to use.
Further, music player is also set up, the music player is mounted in fixed plate.
Advantageous effect using above-mentioned further scheme is when the equipment break works, can to start music player, is given pleasure to
Noise can be covered while happy, improve usage comfort.
Description of the drawings
Fig. 1 is the main structure diagram of the present invention；
Fig. 2 is A-A cross-sectional views of the present invention；
Fig. 3 is structure enlargement diagram at B of the present invention；
Fig. 4 is structure enlargement diagram at C of the present invention；
Fig. 5 is pressure regulating mechanism schematic diagram of the present invention；
Fig. 6 is pressure regulating mechanism adjustment state schematic diagram of the present invention.
1. first lead screw motor in figure, 2. first lead screws, 3. first nut seats, 4. first touching switch, 5. first touchings
Head, 6. first motor bearing blocks, 7. dust hoods, 8. blackboard eraser pedestals, 9. fixed plates, 10. dust catchers, 11. sweep-up pipes, 12. are adjusted
Plate, 13. second touching switch, 14. second touching heads, 15. second motor bearing seats, 16. second lead screws, 17. second lead screws electricity
Machine, 18. adjust cylinder, and 19. second nut seats, 20. first adjustment springs, 21. first adjusting rods, 22. first adjust elliptic wheel,
23. the second adjusting elliptic wheel, 24. second adjusting rods, 26. second adjustment springs, 27. rectangle supports, 28. dust sensors, 29.
Right side sweep-up pipe, 30. left side sweep-up pipes, 31. water fog generators, 32. connecting tubes, 33. air suction openings, 34. left side dust hoods, 35.
Bristle, 36. flannelettes, 37. water mists portal, 38. right side dust hoods, and 18-1. adjusts air cylinder support, and 21-1. first adjusts boom end,
24-1. second adjusts boom end.
Specific implementation mode
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
Embodiment 1
A kind of automatic dust absorption environment-friendly dust-proof eraser, including power-driven mechanism, blackboard eraser portion, extruding force regulating mechanism, vacuum cleaner
Structure and water mist remove trace mechanism, and the driving mechanism includes the first lead screw motor 1, the first lead screw 2, the first nut seat 3, first motor
Bearing block 6, the second lead screw motor 17, the second lead screw 16, the second nut seat 19 and the second motor bearing seat 15, first lead screw
Motor 1 is mounted on the left side of blackboard, and one end of first lead screw 2 is mounted in the first lead screw motor 1, and the other end passes through first
Motor bearing seat 6 is mounted on the right side of blackboard, and the first nut seat 3 is mounted on the first lead screw 2, and second lead screw motor 17 is pacified
Mounted in the left side of blackboard, one end of second lead screw 16 is mounted in the second lead screw motor 17, and the other end passes through the second motor
Bearing block 15 is mounted on the right side of blackboard, and the second nut seat 19 is mounted on the second lead screw 16, and the blackboard eraser portion includes fixed plate
9, blackboard eraser pedestal 8, bristle 35 and flannelette 36, the blackboard eraser pedestal 8 are mounted in fixed plate 9, and 8 section of blackboard eraser pedestal is T
Bristle 35 is installed on type, 8 both sides of blackboard eraser pedestal, and flannelette 36 is installed in the T-type end of blackboard eraser pedestal 8, and the extruding force adjusts machine
Structure includes the first adjustment spring 20, the first adjusting rod 21, first adjusts elliptic wheel 22, adjustable plate 12, second adjusts elliptic wheel 23,
First adjusting boom end 21-1 of the second adjusting rod 24, the second adjustment spring 26 and adjusting cylinder 18, the first adjusting rod 21 passes through
Shaft is mounted on the left focus that first adjusts elliptic wheel 22, and the other end of the first adjusting rod 21 sequentially passes through fixed plate 9 and the
It is mounted on the first nut seat 3 after one adjustment spring 20, the second adjusting boom end 24-1 of the second adjusting rod 24 is pacified by shaft
On the left focus for adjusting elliptic wheel 23 mounted in second, the other end of the second adjusting rod 24 sequentially passes through the adjusting of fixed plate 9 and second
It is mounted on the second nut seat 19 after spring 26, the adjusting cylinder 18 is mounted on fixed plate 9 by adjusting air cylinder support 18-1
On, the cylinder rod for adjusting cylinder 18 is connect by shaft with adjustable plate 12, and the dust collection mechanism includes dust catcher 10, rectangle
Holder 27, sweep-up pipe and dust hood, the dust catcher 10 are mounted on by rectangle support 27 in fixed plate 9, the sweep-up pipe packet
It includes left side dust hood 34 and right side dust hood 38, the left side to include left side sweep-up pipe 30 and right side sweep-up pipe 29, the dust hood
One end of side sweep-up pipe 30 is connected to left side dust hood 34, and the other end is connect with dust catcher 10, and the one of the right side sweep-up pipe 29
End is connected to right side dust hood 38, and the other end is connect with dust catcher 10, and the left side dust hood 34 and right side dust hood 38 are pacified
On blackboard eraser base portion 8, the water mist dust-removing mechanism includes water fog generator 31 and connecting tube 32, and the water fog generator 31 is pacified
On rectangle support 27, setting water mist in the inside of the blackboard eraser base portion 8 portals 37, and the water mist, which portals, 37 passes through flannelette 36, plate
Base portion 8 and one end and atmosphere after fixed plate 9 are wiped, the other end is connect by connecting tube 32 with water fog generator 31, by setting
Extruding force regulating mechanism is set, can realize the adjusting of distance between blackboard eraser portion and blackboard, is avoided for a long time using being caused after abrasion
Blackboard eraser wipes the low problem of efficiency；By the way that dust collection mechanism is arranged, the dust generated when wiping is effectively absorbed, religion is improved
Indoor air quality；Trace mechanism is removed by the way that water mist is arranged, avoids the writing erasing caused by blackboard writing too depth halfway
Phenomenon；Chalk writing on automatic cleaning blackboard, scale removal process is convenient and efficient, is not easy to leave white trace, and can absorb in time
Dust around blackboard eraser portion keeps good air quality in classroom, improves the efficiency of blackboard-cleaning, time saving and energy saving.
Embodiment 2
On the basis of above-described embodiment 1, the present invention can also be improved as follows.
Further, further include dust sensor 28, on dust catcher 10, the dust passes the dust sensor 28
Sensor 28 is electrically connected by signal wire with dust catcher 10, by setting dust sensor 28, can detect dust concentration, to
Dust catcher 10 is transmitted a signal to, the suction of dust catcher 10 makes corresponding adjustment in turn.
Further, dismountable dust collecting box is arranged in 10 inside of the dust catcher, and the dust collecting box is sent out with water mist
Raw device 31 is connected to, and by being passed through water mist inside dust catcher 10, realizes that dust is combined to form liquid dust with water mist, convenient for row
Go out.
Further, the left side dust hood 34 and right side dust hood 38 are respectively provided with dust suction on the side side wall of bristle 35
Hole 33, pick-up performance is more thorough.
Further, 2 and second lead screw of the first lead screw, 16 outside is respectively provided with dust cover, and the dust cover is mounted on blackboard
On, be conducive to the internal structure for protecting equipment, avoid falling ash using dust accumulation for a long time, keep good health.
Further, further include the first touching mechanism and the second touching mechanism, first touching mechanism includes the first touching
Switch 4 and first touch head 5, it is described second touching mechanism include the second touching switch 13 and second touch head 14, described first
Touching switch 4 is mounted on the side wall of right side dust hood 38, and the first touching head 5 is mounted on first motor bearing block 6, institute
The second touching switch 13 is stated on right side dust hood 38, the second touching head 14 is mounted on the second motor bearing seat 15
On, first touching switch 4 and first is touched head 5 and is in same horizontal line, and second touching switch 13 and second is touched
14 are met and discussed in same horizontal line, by the first touching mechanism of setting and the second touching mechanism, effectively detects the fortune in blackboard eraser portion
Dynamic situation, when the first touching switch 4 touches the first touching head 5, the first lead screw motor 1 reversion, when the second touching switch 13
When touching the second touching head 14, the reversion of the second lead screw motor 17 is wiped at this point, blackboard eraser portion back moves.
Further, the switch of the first lead screw motor 1 and the second lead screw motor 17 is set as radio remote control switch, convenient for remote control
Switch, it is more convenient to use.
Further, music player is also set up, the music player is mounted in fixed plate 9, equipment break work
When, music player can be started, amusement while can cover noise, improve usage comfort.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of automatic dust absorption environment-friendly dust-proof eraser, it is characterised in that：Machine is adjusted including power-driven mechanism, blackboard eraser portion, extruding force
Structure, dust collection mechanism and water mist remove trace mechanism, and the driving mechanism includes the first lead screw motor, the first lead screw, the first nut seat, the
One motor bearing seat, the second lead screw motor, the second lead screw, the second nut seat and the second motor bearing seat, the first lead screw electricity
Machine is mounted on the left side of blackboard, and one end of first lead screw is mounted in the first lead screw motor, and the other end passes through first motor
Bearing block is mounted on the right side of blackboard, and the first nut seat is mounted on the first lead screw, and second lead screw motor is mounted on blackboard
Left side, one end of second lead screw is mounted in the second lead screw motor, and the other end is mounted on by the second motor bearing seat
The right side of blackboard, the second nut seat are mounted on the second lead screw, and the blackboard eraser portion includes fixed plate, blackboard eraser pedestal, bristle and suede
Cloth, the blackboard eraser pedestal are mounted in fixed plate, and blackboard eraser pedestal section is T-type, and bristle is installed on blackboard eraser pedestal both sides,
Flannelette is installed in the T-type end of blackboard eraser pedestal, and the extruding force regulating mechanism includes the first adjustment spring, the first adjusting rod, first
It adjusts elliptic wheel, adjustable plate, the second adjusting elliptic wheel, the second adjusting rod, the second adjustment spring and adjusts cylinder, the first adjusting rod
First adjust boom end by shaft be mounted on first adjust elliptic wheel left focus on, the other end of the first adjusting rod is successively
It is mounted on the first nut seat after fixed plate and the first adjustment spring, the second of the second adjusting rod adjusts boom end by turning
Axis is mounted on the left focus that second adjusts elliptic wheel, and the other end of the second adjusting rod sequentially passes through fixed plate and second and adjusts bullet
It is mounted on the second nut seat after spring, the adjusting cylinder is mounted on by adjusting air cylinder support in fixed plate, the adjusting gas
The cylinder rod of cylinder is connect by shaft with adjustable plate, and the dust collection mechanism includes dust catcher, rectangle support, sweep-up pipe and dust suction
Cover, the dust catcher are mounted on by rectangle support in fixed plate, and the sweep-up pipe includes left side sweep-up pipe and right side sweep-up pipe,
The dust hood includes left side dust hood and right side dust hood, and one end of the left side sweep-up pipe is connected to left side dust hood, separately
One end is connect with dust catcher, and one end of the right side sweep-up pipe is connected to right side dust hood, and the other end is connect with dust catcher, described
Left side dust hood and right side dust hood are installed on blackboard eraser base portion, and the water mist dust-removing mechanism includes water fog generator and connection
Pipe, the water fog generator are mounted on rectangle support, and setting water mist portals inside the blackboard eraser base portion, and the water mist, which portals, to be worn
One end and atmosphere after flannelette, blackboard eraser base portion and fixed plate are crossed, the other end is connect by connecting tube with water fog generator.
2. a kind of automatic dust absorption environment-friendly dust-proof eraser according to claim 1, it is characterised in that：Further include dust sensor,
The dust sensor is mounted on dust catcher, and the dust sensor is electrically connected by signal wire with dust catcher.
3. a kind of automatic dust absorption environment-friendly dust-proof eraser according to claim 1, it is characterised in that：Setting inside the dust catcher
Dismountable dust collecting box, the dust collecting box are connected to water fog generator.
4. a kind of automatic dust absorption environment-friendly dust-proof eraser according to claim 1, it is characterised in that：The left side dust hood and the right side
Side dust hood is respectively provided with air suction opening on the side side wall of bristle.
5. a kind of automatic dust absorption environment-friendly dust-proof eraser according to claim 1, it is characterised in that：First lead screw and second
Dust cover is respectively provided on the outside of lead screw, the dust cover is mounted on blackboard.
6. a kind of automatic dust absorption environment-friendly dust-proof eraser according to claim 1, it is characterised in that：It further include the first touching mechanism
With the second touching mechanism, first touching mechanism includes the first touching switch and the first touching head, second touching mechanism
Including the second touching switch and the second touching head, first touching switch is mounted on the side wall of right side dust hood, and described the
One touching head is mounted on first motor bearing block, and second touching switch is mounted on the dust hood of right side, and described second touches
It meets and discusses on the second motor bearing seat, first touching switch is in the first touching head in same horizontal line, described
Second touching switch is in the second touching head in same horizontal line.
7. a kind of automatic dust absorption environment-friendly dust-proof eraser according to claim 1, it is characterised in that：First lead screw motor and second
The switch of lead screw motor is set as radio remote control switch.
8. a kind of automatic dust absorption environment-friendly dust-proof eraser according to claim 1, it is characterised in that：Music player is also set up,
The music player is mounted in fixed plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810510518.8A CN108407511A (en) | 2018-05-24 | 2018-05-24 | A kind of automatic dust absorption environment-friendly dust-proof eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810510518.8A CN108407511A (en) | 2018-05-24 | 2018-05-24 | A kind of automatic dust absorption environment-friendly dust-proof eraser |
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| CN108407511A true CN108407511A (en) | 2018-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810510518.8A Pending CN108407511A (en) | 2018-05-24 | 2018-05-24 | A kind of automatic dust absorption environment-friendly dust-proof eraser |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109747299A (en) * | 2019-01-17 | 2019-05-14 | 潍坊护理职业学院 | A kind of board of education with dedusting function |
| CN110217026A (en) * | 2019-05-23 | 2019-09-10 | 洛阳理工学院 | A kind of washing automatically cleaning blackboard with air-drying function |
| CN111993822A (en) * | 2020-08-11 | 2020-11-27 | 五邑大学 | Automatic chalk brush system |
| CN114771130A (en) * | 2022-05-05 | 2022-07-22 | 威海海洋职业学院 | Blackboard is used in teaching with automatically, clean function |
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| CN207045012U (en) * | 2017-04-30 | 2018-02-27 | 亓霈 | A kind of blackboard eraser |
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