CN102225675B - Multifunctional electric self-cleaning teaching blackboard - Google Patents
Multifunctional electric self-cleaning teaching blackboard Download PDFInfo
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- CN102225675B CN102225675B CN201110165438.1A CN201110165438A CN102225675B CN 102225675 B CN102225675 B CN 102225675B CN 201110165438 A CN201110165438 A CN 201110165438A CN 102225675 B CN102225675 B CN 102225675B
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Abstract
The invention discloses a multifunctional electric self-cleaning teaching blackboard. The blackboard comprises an outer frame and an electric self-cleaning assembly consisting of a strip-type blackboard brush and a driving mechanism; an either-rotation motor and a corresponding electric control board are arranged at one side edge of the outer frame, and the driving mechanism is composed of a feed screw nut moving mechanism; the bottom of the outer frame is provided with a guide track groove; the strip-type blackboard brush is composed of a U-shaped brush body, a hollow strip-type wiping rod in the long groove of the brush body and two bristles arranged at two sides of the hollow strip-type wiping rod, the bottom of the strip-type blackboard brush is positioned in the guide track groove, and the top of the strip-type blackboard brush is fixed on the nut which is used as a driving connecting block, the strip-type blackboard brush can horizontally move back and forth along the guide track groove under the driving of the feed screw nut so as to complete the wiping operation; and two sides of the hollow strip-type wiping rod are provided with dust absorption holes, and the bottom of the hollow strip-type wiping rod is connected with a dust absorption pipe. The electric self-cleaning assembly can be manufactured in a bilaterally symmetric structure. The blackboard is adapted to large blackboards of large size and length in the middle and elementary schools, and has the advantages of simple structure, multiple use functions and convenience in operation; and the blackboard is in favor of reducing the dust pollution and establishing a dustless environmentally-friendly classroom environment.
Description
(1), technical field
The present invention relates to a kind of blackboard for education, especially a kind of Multifunctional electric self-cleaning teaching blackboard.
(2), background technology
Current blackboard conventional in all kinds of teaching is of all kinds, mostly there is dust pollution question in what in every case writing on the blackboard adopted chalk-writing, badly influence the healthy of teachers and students, especially in middle and primary schools, blackboard in classroom and chalk are students, the thing that teacher can touch every day, particularly when wiping board book, the dust of a sheet of white dances in the air all over the sky, everybody has inevitably sucked some chalk dusts, front-seat classmate, teacher, it is more that student on duty inhales, year in and year out, the easy lung to students in middle and primary schools and teacher, the upper respiratory tract, eyes, skin, the many places organs such as ear work the mischief, also can bring out Other diseases, contaminated environment.In order to solve dust pollution question and in order to alleviate the labour intensity of the frequent blackboard wiping of teacher in teaching process, people have designed the manual or electric blackboard eraser of many energy automatic dust absorptions, these dust absorption blackboard erasers, all on blackboard eraser, to install Small-sized suction cleaner additional to reach the object of dust suction, these dust absorption blackboard erasers, reason because of its structure, not only pick-up performance is unsatisfactory, and wiping is rather wasted time and energy, for this reason, people have also designed the blackboard of some electronic self-erasing types, the utility model that is 200720086073.2 as patent (application) number discloses a kind of Self-cleaning blackboard, its design feature is: it comprises two portable plate faces, wiper, wiper switch, speed increasing gear group, chain adjuster and frame, described wiper forms parallelogram by four connecting rods that are positioned at frame both sides, and its working face is parallel with portable plate face all the time, described speed increasing gear group is arranged on the middle part in frame left side by screw, described chain adjuster cuts up with a hay cutter on minor sprocket after being arranged on frame.This utility model is equipped with the wiper being comprised of a plurality of column wipers and plate-like wiper, wiper working face is large, in plate face moves up and down process to the wiping of whole plate face, speed is fast, does not produce the phenomenon that chalk powder flies upward, and the running of its wiper is to wear moving running by plate, dragging plate face, the transmission of power of plate face being moved by inner teeth wheels, to wiper, realizes the function of wiping plate face writing, makes blackboard energy-conserving and environment-protective.And for example patent (application) number is that 200720086073.2 utility model discloses a kind of upset Self-cleaning blackboard, its design feature is: the electric device that can be fixed on body of wall is provided with two telescopic rocker arms, the front end of two telescopic rocker arms is respectively lifted with one and controls the blackboard of front and back upset mutually by telescopic rocker arm, and is equipped with whole hairbrush at the back side of two blackboards.While installing and using, by starting electric device, work is upper and lower, overturn mutually in front and back can to make two blackboards of telescopic rocker arm control coincide, and in upset, by the hairbrush at the blackboard back side, wipes write letter written with chalk.Although the Self-cleaning blackboard of above-mentioned prior art can realize plate face from wiping effect, but also there is complex structure, installation and maintenance difficulty, especially because the reason of Wiper structure, the length dimension of wiper hairbrush commute stroke is very limited, the plate face area of wiping is limited comprehensively, it is large that the plate face length degree that makes these Self-cleaning blackboards and width area can not be made resemble conventional teaching blackboard, thus be difficult to adapt in the classroom of middle and primary schools and university classroom big-length size large blackboard on use.
(3) summary of the invention
The object of this invention is to provide a kind of Multifunctional electric self-cleaning teaching blackboard, make to adapt on the large blackboard of big-length in the classroom of middle and primary schools and university classroom and use, have simple in structure, use function many, installation and maintenance are easy, wiping is automatic, easy to operate feature, also help sawed-off students in middle and primary schools and facilitate blackboard wiping, alleviated the labour intensity erasing the board, and avoided chalk dust to fly upward, greatly reduce dust pollution, be of value to teachers and students' health.
The present invention realizes with following technical scheme, this Multifunctional electric self-cleaning teaching blackboard, still comprise that an outside framework (claiming again frame), is positioned at outside framework lateral surface for the blackboard panel of chalk-writing, by the bar shaped blackboard brush for wiping chalk writing (being writing on the blackboard) and the electronic self-erasing type assembly for driving the driving mechanism of bar shaped blackboard brush wiping to form, wherein outside framework interlocking is fixed on wall on wall or by fixture, it is characterized in that:
A, the either side edge of described the outside framework inner inner side of blackboard panel () be provided with one can rotating either-rotation motor (as adopted respectively a two-way reversible electric machine or an adjustable speed either-rotation motor) and a corresponding electric controller (electric-controlled plate), the feed screw nut travel mechanism that described driving mechanism is arranged on outside framework top by a transverse horizontal forms, and this feed screw nut travel mechanism is driven (as adopted respectively an above-mentioned bidirectional reversible motor or adjustable speed either-rotation motor driving) by either-rotation motor that can rotating;
B, in the bottom of described outside framework (claiming again frame), be provided with the guide-track groove (doubling as dust groove purposes) that can collect the remaining chalk dust that drops;
C, described bar shaped blackboard brush by one with long channel form " U " type brush body (claiming again brush holder), one is placed in the hollow bar shaped wiping rod of the long groove of " U " type brush body, two bristles (claiming again hairbrush body) that are evenly installed in " U " type brush body inner side (referring to be positioned at long groove opening in the face of the side of blackboard) and are positioned at hollow bar shaped wiping rod both sides (forming vertical closed brush chamber) form, the bottom of described bar shaped blackboard brush brush body is positioned at the guide-track groove of outside framework bottom, the top, top of bar shaped blackboard brush brush body (can by brush body installing rack) is fixedly mounted on as driving on the nut of contiguous block, startup can rotating either-rotation motor, bar shaped blackboard brush can move as transverse reciprocating along guide-track groove under feed screw nut's driving, to complete the action of carrying out blackboard wiping,
D, in the both sides of the hollow bar shaped wiping rod of described bar shaped blackboard brush or a side (close blackboard place) offer some dust suction apertures, the offering of this dust suction aperture be beneficial to the chalk dust that dust catcher dropped by wiping from the brush body both sides suction of bar shaped blackboard brush (operation principle: two bristles install formation vertical closed brush chamber, under the swabbing action of dust catcher, in the long groove (being vertical closed brush chamber) of hollow bar shaped wiping rod inside and bar shaped blackboard brush brush body, can form partial vacuum negative pressure state, the chalk dust that can make to stick on bristle can be sucked), bottom at this (bar shaped blackboard brush) hollow bar shaped wiping rod is connected with a sweep-up pipe, the length of described sweep-up pipe should adapt with the bar shaped blackboard brush stroke that transverse reciprocating moves in guide-track groove, at the either side bottom margin place of described outside framework (being places, guide-track groove two ends), an electric dust collector with dust-absorbing box is installed, the outlet of the entrance point of described sweep-up pipe and described hollow bar shaped wiping rod bottom is connected, the port of export of sweep-up pipe is connected with the suction port of described electric dust collector.
E, in the both sides of described outside framework, be provided with rule (or long ruler), on the brush body outer surface of described bar shaped blackboard brush or the limit, one or both sides of bar shaped blackboard brush brush body, be also provided with rule, so that upper mathematics class or some are need to paint straight line composition time, can height up and down, carry out picture right angle, line segment etc.
In the specific implementation, its above-mentioned technical characterictic can further be specially in the present invention:
One, when described either-rotation motor that can rotating is while being bidirectional reversible motor, in the described feed screw nut travel mechanism as driving mechanism, one end of its screw mandrel is to be connected with the output shaft of bidirectional reversible motor by gear shift, when described either-rotation motor that can rotating is while being adjustable speed either-rotation motor, one end of described screw mandrel is to be directly connected with the output shaft of adjustable speed either-rotation motor.
Two, at the two side bottom places near described outside framework, be provided with the switch that can move as transverse reciprocating for controlling bar shaped blackboard brush (along guide-track groove), described switch is two-way press button, the object that designs two-way press button is to be convenient to judge wiping direction, with the place that facilitates control need to wipe at blackboard surface, carries out wiping.
Three, in the appropriate position, two ends of described outside framework bottom guide track groove, be provided with travel switch, in the appropriate position of described bar shaped blackboard brush brush body, be provided with corresponding travel switch contact, when what bar shaped blackboard brush carried out blackboard wiping, move around action while putting in place, the contact of the trip switch will cut off energising power supply and stop wiping work.
Four, the rule of described outside framework both sides is the slidably long rulers that are designed to energy height up and down.
Five, in the both sides of described outside framework, be provided with swingable rule (long ruler), so that upper mathematics class hour draws a picture, the figure such as triangle and angle is used.
Six, the present invention can also make the driving mechanism of the electronic self-erasing type assembly in this Multifunctional electric self-cleaning teaching blackboard the structure (accompanying drawing slightly) of symmetrical design, that is: in the two edges, left and right (inner side of blackboard panel) of described outside framework, be respectively provided with one can rotating either-rotation motor (as adopted respectively a bidirectional reversible motor or adjustable speed either-rotation motor) and corresponding electric controller (electric-controlled plate), described driving mechanism also by a pair of (two) laterally (level) be arranged on outside framework top and become symmetrically arranged feed screw nut travel mechanism to form that (one-tenth symmetric design is while considering that blackboard for education length has 3-4 rice even longer, wiping is carried out in the place that can be more convenient for wiping at needs fast), each feed screw nut travel mechanism be by above-mentioned corresponding one can rotating either-rotation motor drive (as adopted respectively an above-mentioned bidirectional reversible motor or an adjustable speed either-rotation motor to drive), described bar shaped blackboard brush is to be also designed with in pairs two, each bar shaped blackboard brush by one with long channel form " U " type brush body (claiming again brush holder), one is placed in the hollow bar shaped wiping rod of the long groove of " U " type brush body (claiming again brush holder), two bristles (claiming again hairbrush body) that are evenly installed in " U " type brush body inner side (referring to be positioned at long groove opening in the face of the side of blackboard) and are positioned at hollow bar shaped wiping rod both sides (forming vertical closed brush chamber) form, the bottom of described bar shaped blackboard brush brush body is positioned at the guide-track groove of outside framework bottom, the top, top of bar shaped blackboard brush brush body (can by brush body installing rack) is fixedly mounted on as driving on the nut of contiguous block, according to wiping needs, start the either-rotation motor that left or right can rotating, bar shaped blackboard brush can move as transverse reciprocating along guide-track groove under feed screw nut's driving, to carry out the action of blackboard wiping, in the both sides of the hollow bar shaped wiping rod of described each bar shaped blackboard brush or a side (close blackboard place) offer some dust suction apertures, offering of this dust suction aperture is beneficial to the chalk dust that dust catcher has been dropped by wiping from the brush body both sides suction of bar shaped blackboard brush, in the bottom of each hollow bar shaped wiping rod, be all connected with a sweep-up pipe, the length of described every sweep-up pipe should adapt with the bar shaped blackboard brush stroke that transverse reciprocating moves in guide-track groove, at bottom margin place, the both sides of described blackboard outside framework, (being places, guide-track groove two ends) is all provided with an electric dust collector with dust-absorbing box, the entrance point of described every sweep-up pipe be connected with the outlet of corresponding hollow bar shaped wiping rod bottom (connection), the port of export of every sweep-up pipe is connected with the suction port of corresponding electric dust collector.
Compared with the prior art, the invention has the beneficial effects as follows: can adapt on the classroom of middle and primary schools and the large blackboard of the big-length size in university classroom and use, have simple in structure, use function is many, can also be used to drafting straight line, parallel lines, draw right angle, line segment, staff, the work such as matts isoline composition and other accurate drawings, installation and maintenance are easy, pressing two-way press button blackboard eraser just can be automatic, the whole blackboard of wiped clean quickly, or according to writing on the blackboard needs, local positioning is wiped, there is wiping automatic, easy to operate, can be thoroughly that the work of erasing the board is automatic from manually becoming, be conducive to sawed-off students in middle and primary schools and facilitate blackboard wiping (being highly no longer problem), alleviated the labour intensity erasing the board, anyone can easily erase the board, and when wiping, dust exhaust apparatus can suck dust in the dust-absorbing box of electric dust collector fast, do not worry disagreeable dust from flying yet, greatly reduce or avoided dust pollution, be of value to health, be conducive to create a green classroom environment that cleaning is dustless.
(4), accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram (embodiment 1) of a kind of Multifunctional electric self-cleaning teaching blackboard of the present invention.
Fig. 2 is the structural representation of bar shaped blackboard brush parts of the present invention.
Fig. 3 is the structural representation of the hollow bar shaped wiping rod in bar shaped blackboard brush of the present invention.
(5) specific embodiment
Known with reference to accompanying drawing, the concrete parts of this Multifunctional electric self-cleaning teaching blackboard of utility model of the present invention comprise: 1~outside framework (claiming again frame), 2~blackboard panel, 3~bar shaped blackboard brush, 4~as the feed screw nut travel mechanism (claiming again feed screw nut's tractor) of driving mechanism, 5~gear shift, 6~either-rotation motor (as bidirectional reversible motor or adjustable speed either-rotation motor) that can rotating, 7~electric controller (electric-controlled plate), 8~as the nut that drives contiguous block, 9~brush body installing rack, 10~screw mandrel, 11~screw mandrel installed part (bearing part), 12~be arranged on the rule (or long ruler) of outside framework both sides, 13~be arranged on the swingable rule (long ruler) on outside framework dual-side, 14~be arranged on the rule (or long ruler) of bar shaped blackboard brush brush body outer surface, 15~guide-track groove (doubling as dust groove purposes), 16~two-way press button, 17~with the electric dust collector of dust-absorbing box, the suction port of 18~electric dust collector, 19~sweep-up pipe (length of sweep-up pipe should adapt with the bar shaped blackboard brush stroke that transverse reciprocating moves in guide-track groove), " U " type brush body (claiming again brush holder) with long channel form of 20~bar shaped blackboard brush, 21~hollow bar shaped wiping rod, 22~bristle (claiming again hairbrush body), 23~travel switch, 24~travel switch contact, the outlet (being connected with the entrance point of sweep-up pipe) of 25~hollow bar shaped wiping rod bottom, 26~offer the dust suction aperture that is positioned at hollow bar shaped wiping rod both sides (or a side).
With reference to accompanying drawing 1 (embodiment 1), this Multifunctional electric self-cleaning teaching blackboard of the present invention still comprises outside framework (claiming again frame) 1, is positioned at outside framework lateral surface for the blackboard panel 2 of chalk-writing, by the bar shaped blackboard brush 3 for wiping chalk writing (being writing on the blackboard) and the electronic self-erasing type assembly for driving the driving mechanism of bar shaped blackboard brush wiping letter written with chalk to form, wherein outside framework interlocking is fixed on wall on wall or by fixture, it is characterized in that:
A, in described outside framework 1 inside the either side edge of the inner side of blackboard panel () be provided with one can rotating either-rotation motor (as adopted respectively a two-way reversible electric machine or an adjustable speed either-rotation motor) 6 and one corresponding electric controller (electric-controlled plate) 7, the feed screw nut travel mechanism 4 that described driving mechanism is arranged on outside framework top by one horizontal (level) forms, and this feed screw nut travel mechanism is driven by described either-rotation motor 6 that can rotating;
B, in the bottom of described outside framework (claiming again frame) 1, be provided with the guide-track groove (doubling as dust groove purposes) 15 that can collect the remaining chalk dust that drops;
C, described bar shaped blackboard brush 3 by one with long channel form " U " type brush body (claiming again brush holder), one is placed in the hollow bar shaped wiping rod 21 of " U " type brush body (claiming again brush holder) 20 long grooves, 22 of two bristles (claiming again hairbrush body) that are evenly installed in " U " type brush body 20 inner sides (referring to be positioned at long groove opening in the face of the side of blackboard) and are positioned at hollow bar shaped wiping rod 21 both sides (forming vertical closed brush chamber) form, the bottom of described bar shaped blackboard brush 3 brush bodies is positioned at the guide-track groove 15 of outside framework bottom, the top, top of bar shaped blackboard brush brush body (can by brush body installing rack) is fixedly mounted on as driving on the nut 8 of contiguous block, startup can rotating either-rotation motor, bar shaped blackboard brush 3 can move as transverse reciprocating along guide-track groove under feed screw nut's driving, to complete the action of carrying out blackboard wiping,
D, the both sides of hollow bar shaped wiping rod 21 or the close blackboard place of a side at described bar shaped blackboard brush 3 offer some dust suction apertures 26, the offering of this dust suction aperture be beneficial to the chalk dust that dust catcher dropped by wiping from the brush body both sides suction of bar shaped blackboard brush (operation principle: two bristles install formation vertical closed brush chamber, under the swabbing action of dust catcher, in the long groove (being vertical closed brush chamber) of hollow bar shaped wiping rod inside and bar shaped blackboard brush brush body, can form partial vacuum negative pressure state, the chalk dust that can make to stick on bristle can be sucked), bottom at this (bar shaped blackboard brush) hollow bar shaped wiping rod 21 is connected with a sweep-up pipe 19, the length of described sweep-up pipe should adapt with the bar shaped blackboard brush stroke that transverse reciprocating moves in guide-track groove, at the either side bottom margin place of described outside framework (being places, guide-track groove two ends), an electric dust collector 17 with dust-absorbing box is installed, the outlet 25 of the entrance point of described sweep-up pipe and described hollow bar shaped wiping rod bottom is connected, the port of export of sweep-up pipe is connected with the suction port of described electric dust collector 18.
E, in the both sides of described outside framework 1, be provided with rule (or long ruler) 12, on the brush body outer surface of described bar shaped blackboard brush or the limit, one or both sides of bar shaped blackboard brush brush body, be also provided with rule 14, described rule is the slidably long ruler that design becomes energy height up and down, so that upper mathematics class or some are need to paint straight line composition time, can height up and down, carry out picture right angle, line segment etc.
In the specific implementation, its above-mentioned technical characterictic can further be specially in the present invention:
One, when described either-rotation motor 6 that can rotating is while being bidirectional reversible motor, in the described feed screw nut travel mechanism 4 as driving mechanism, one end of its screw mandrel 10 is to be connected with the output shaft of bidirectional reversible motor by gear shift 5, when described either-rotation motor that can rotating is while being adjustable speed either-rotation motor, one end of described screw mandrel is be directly connected with the output shaft of adjustable speed either-rotation motor (accompanying drawing slightly).
Two, at the two side bottom places near described outside framework 1, be provided with the switch that can move as transverse reciprocating for controlling bar shaped blackboard brush 3 (along guide-track groove), described switch is two-way press button 16, the object that designs two-way press button is to be convenient to judge wiping direction, to facilitate the place that control can be wiped at needs to carry out wiping.
Three, in the appropriate position, two ends of described outside framework bottom guide track groove, be provided with travel switch 23, in the appropriate position of described bar shaped blackboard brush brush body, be provided with corresponding travel switch contact 24, when what bar shaped blackboard brush carried out blackboard wiping, move around action while putting in place, the contact of the trip switch will cut off energising power supply and stop wiping work.
Four, in the both sides of described outside framework 1, be provided with swingable rule (long ruler) 13, so that upper mathematics class hour draws a picture, the figure such as triangle and angle is used.
Five, second embodiment of the present invention is: the structure (accompanying drawing slightly) that the driving mechanism of the electronic self-erasing type assembly in this Multifunctional electric self-cleaning teaching blackboard can also be made to symmetrical design, that is: in the left and right edges of described outside framework, be respectively provided with one can rotating either-rotation motor (as adopted respectively a bidirectional reversible motor or adjustable speed either-rotation motor) and corresponding electric controller (electric-controlled plate), described driving mechanism also by a pair of (two) laterally (level) be arranged on outside framework top and become symmetrically arranged feed screw nut travel mechanism to form that (one-tenth symmetric design is while considering that blackboard for education length has 3-4 rice even longer, wiping is carried out in the place that can be more convenient for wiping at needs fast), each feed screw nut travel mechanism be by above-mentioned corresponding one can rotating either-rotation motor drive (as adopted respectively an above-mentioned bidirectional reversible motor or an adjustable speed either-rotation motor to drive), described bar shaped blackboard brush is to be also designed with in pairs two, each bar shaped blackboard brush by one with long channel form " U " type brush body (claiming again brush holder), one is placed in the hollow bar shaped wiping rod of the long groove of " U " type brush body (claiming again brush holder), two bristles (claiming again hairbrush body) that are evenly installed in " U " type brush body inner side (referring to be positioned at long groove opening in the face of the side of blackboard) and are positioned at hollow bar shaped wiping rod both sides (forming vertical closed brush chamber) form, the bottom of described bar shaped blackboard brush brush body is positioned at the guide-track groove of outside framework bottom, the top, top of bar shaped blackboard brush brush body (can by brush body installing rack) is fixedly mounted on as driving on the nut of contiguous block, according to wiping needs, start the either-rotation motor that left or right can rotating, bar shaped blackboard brush can move as transverse reciprocating along guide-track groove under feed screw nut's driving, to carry out the action of blackboard wiping, in the both sides of the hollow bar shaped wiping rod of described each bar shaped blackboard brush or a side (close blackboard place) offer some dust suction apertures, offering of this dust suction aperture is beneficial to the chalk dust that dust catcher has been dropped by wiping from the brush body both sides suction of bar shaped blackboard brush, in the bottom of each hollow bar shaped wiping rod, be all connected with a sweep-up pipe, the length of described sweep-up pipe should adapt with the bar shaped blackboard brush stroke that transverse reciprocating moves in guide-track groove, at bottom margin place, the both sides of described outside framework, (being places, guide-track groove two ends) is all provided with an electric dust collector with dust-absorbing box, the entrance point of described every sweep-up pipe be connected with the outlet of corresponding hollow bar shaped wiping rod bottom (connection), the port of export of every sweep-up pipe be connected with the suction port of corresponding electric dust collector (accompanying drawing slightly).
The dust suction operation principle process of the embodiment of the present invention 2 is (summary) as previously mentioned.
It is of the present invention that not state part same as the prior art.
Claims (6)
1. a Multifunctional electric self-cleaning teaching blackboard, it comprises outside framework (1), is positioned at outside framework lateral surface for the blackboard panel (2) of chalk-writing, by the bar shaped blackboard brush (3) for wiping chalk writing and the electronic self-erasing type assembly for driving the driving mechanism of bar shaped blackboard brush wiping to form, wherein outside framework interlocking is fixed on wall on wall or by fixture, it is characterized in that:
A, the inner either side edge of described outside framework (1) be provided with one can rotating either-rotation motor (6) and a corresponding electric controller (7), the feed screw nut travel mechanism (4) that described driving mechanism is arranged on outside framework top by a transverse horizontal forms, and described feed screw nut travel mechanism is driven by either-rotation motor (6) that can rotating;
B, in the bottom of described outside framework (1), be provided with the guide-track groove (15) that can collect the remaining chalk dust that drops;
C, described bar shaped blackboard brush (3) by one with long channel form " U " type brush body (20), one is placed in the hollow bar shaped wiping rod (21) of the long groove of " U " type brush body (20), two bristles (22) that are evenly installed in " U " type brush body (20) inner side and are positioned at hollow bar shaped wiping rod (21) both sides form, the bottom of described bar shaped blackboard brush brush body is positioned at the guide-track groove (15) of outside framework bottom, the top, top of bar shaped blackboard brush brush body is fixedly mounted on as driving on the nut (8) of contiguous block, startup can rotating either-rotation motor, bar shaped blackboard brush (3) can move as transverse reciprocating along guide-track groove under feed screw nut's driving,
D, the both sides of hollow bar shaped wiping rod (21) or the close blackboard place of a side at described bar shaped blackboard brush (3) offer some dust suction apertures (26), in the bottom of this hollow bar shaped wiping rod (21), be connected with a sweep-up pipe (19), the length of described sweep-up pipe is to adapt with the bar shaped blackboard brush stroke that transverse reciprocating moves in guide-track groove, at the either side bottom margin place of described outside framework, one electric dust collector with dust-absorbing box (17) is installed, the outlet (25) of the entrance point of described sweep-up pipe and described hollow bar shaped wiping rod bottom is connected, the port of export of sweep-up pipe is connected with the suction port of described electric dust collector (18),
E, in the both sides of described outside framework (1), be provided with rule (12), on the brush body outer surface of described bar shaped blackboard brush, be also provided with rule (14).
2. Multifunctional electric self-cleaning teaching blackboard according to claim 1, it is characterized in that: when described either-rotation motor (6) that can rotating is during for bidirectional reversible motor, in the described feed screw nut travel mechanism (4) as driving mechanism, one end of its screw mandrel (10) is to be connected with the output shaft of bidirectional reversible motor by gear shift (5), when described either-rotation motor that can rotating is while being adjustable speed either-rotation motor, one end of described screw mandrel is to be directly connected with the output shaft of adjustable speed either-rotation motor.
3. Multifunctional electric self-cleaning teaching blackboard according to claim 1, it is characterized in that: at the two side bottom places near described outside framework (1), be provided with the switch that can move as transverse reciprocating along guide-track groove for controlling bar shaped blackboard brush (3), described switch is two-way press button (16).
4. Multifunctional electric self-cleaning teaching blackboard according to claim 1, it is characterized in that: in the appropriate position, two ends of described outside framework bottom guide track groove, be provided with travel switch (23), in the appropriate position of described bar shaped blackboard brush brush body, be provided with corresponding travel switch contact (24).
5. Multifunctional electric self-cleaning teaching blackboard according to claim 1, is characterized in that: in the both sides of described outside framework (1), be provided with the rule (13) that can swing.
6. Multifunctional electric self-cleaning teaching blackboard according to claim 1, it is characterized in that: the driving mechanism of described electronic self-erasing type assembly is the structure of making symmetrical design, that is: in the left and right edges of described outside framework, be respectively provided with one can rotating either-rotation motor and corresponding electric controller, described driving mechanism is also arranged on outside framework top by a pair of transverse horizontal and becomes symmetrically arranged feed screw nut travel mechanism to form, each feed screw nut travel mechanism be by above-mentioned corresponding one can rotating either-rotation motor drive, described bar shaped blackboard brush is to be also designed with in pairs two, each bar shaped blackboard brush by one with long channel form " U " type brush body, one is placed in the hollow bar shaped wiping rod of the long groove of " U " type brush body, two bristles that are evenly installed in " U " type brush body inner side and are positioned at hollow bar shaped wiping rod both sides form, the bottom of described bar shaped blackboard brush brush body is positioned at the guide-track groove of outside framework bottom, the top, top of bar shaped blackboard brush brush body is fixedly mounted on as driving on the nut of contiguous block, the both sides of hollow bar shaped wiping rod or the close blackboard place of a side at described each bar shaped blackboard brush offer some dust suction apertures, described in each, the bottom of hollow bar shaped wiping rod is all connected with a sweep-up pipe, the length of described sweep-up pipe is to adapt with the bar shaped blackboard brush stroke that transverse reciprocating moves in guide-track groove, at bottom margin place, the both sides of described outside framework, one electric dust collector with dust-absorbing box is all installed, the entrance point of every described sweep-up pipe is connected with the outlet of corresponding hollow bar shaped wiping rod bottom, the port of export of every sweep-up pipe is connected with the suction port of corresponding electric dust collector.
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CN102963172A (en) * | 2012-12-10 | 2013-03-13 | 黄霞 | Blackboard device convenient to clean |
CN103707700B (en) * | 2013-12-18 | 2016-04-06 | 广州铁路职业技术学院 | Multifunctional automatic blackboard eraser |
CN103963522A (en) * | 2014-05-14 | 2014-08-06 | 广西电力职业技术学院 | Automatic blackboard eraser |
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