CN104129205A - Automatic cleaning blackboard - Google Patents
Automatic cleaning blackboard Download PDFInfo
- Publication number
- CN104129205A CN104129205A CN201410334594.XA CN201410334594A CN104129205A CN 104129205 A CN104129205 A CN 104129205A CN 201410334594 A CN201410334594 A CN 201410334594A CN 104129205 A CN104129205 A CN 104129205A
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- Prior art keywords
- plate body
- screw mandrel
- link block
- electromagnet
- blackboard
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Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 12
- 239000000428 dust Substances 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 14
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Drawing Aids And Blackboards (AREA)
Abstract
The automatic cleaning blackboard comprises a blackboard and a track box, wherein the blackboard comprises a first board body, a second board body horizontally adjacent to the first board body and a third board body vertically adjacent to the first board body, one end of each of the first board body, the second board body and the third board body is respectively provided with a first moving part, and the first board body, the second board body and the third board body can move left and right along the first moving parts; the outer sides of the first plate body, the second plate body and the third plate body are respectively provided with a second moving part, and the first plate body, the second plate body and the third plate body can move up and down and move back and forth along the second moving parts; the back surfaces of the first plate body, the second plate body and the third plate body are respectively provided with a brush plate part used for cleaning each other during moving. The blackboard of the invention can be automatically cleaned, is convenient and easy to use, can prevent dust from flying to the user in the erasing process, and is beneficial to the body health of the user.
Description
Technical field
The present invention relates to a kind of automatic-cleaning backboard.
Background technology
Existing blackboard still needs teachers' manual erase writing, not only require great effort, and the chalk dust waving can have a strong impact on the healthy of teachers and students.
Summary of the invention
Still the shortcoming that needs manual erase writing in order to overcome existing blackboard, the invention provides a kind of automatic-cleaning backboard.
The technical solution used in the present invention is:
Automatic-cleaning backboard, comprise blackboard and be centered around its track box around, described easel is located in described track box, described blackboard comprise the first plate body, second plate body adjacent with the first plate body level, with vertical adjacent the 3rd plate body of the first plate body, one end of the first described plate body, the second plate body and the 3rd plate body is respectively equipped with the first moving part, and the first described plate body, the second plate body and the 3rd plate body all can move left and right along the first described moving part; The outside of described the first plate body, the second plate body and the 3rd plate body is respectively equipped with the second moving part, and the first described plate body, the second plate body and the 3rd plate body all can move up and down and move forward and backward along the second described moving part; The back side of the first described plate body, the second plate body and the 3rd plate body is respectively equipped with for clean brush board portion mutually when mobile;
The first described moving part comprises the first screw mandrel being erected on bearing block, and one end of described the first screw mandrel is connected with the first motor, and described the first screw mandrel is provided with link block, and described the first screw mandrel runs through the installation through hole in described link block;
Described link block comprises the contiguous block that has installation through hole, described contiguous block also has fixed bar through hole in the both sides that through hole is installed, for limiting the fixed bar of contiguous block rotation, run through described fixed bar through hole, the two ends of described fixed bar are fixed in track box, and the joint face of described contiguous block is provided with the first electromagnet;
The first electromagnet of the link block on described the first moving part is connected with the lower end of the 3rd plate body with the upper end of described the first plate body, the upper end of the second plate body respectively;
The second described moving part comprises the vertical screw mandrel being connected with the second motor and the horizontal lead screw being connected with the 3rd motor, and described horizontal lead screw is connected with described vertical screw mandrel by link block, and described vertical screw mandrel is connected with plate by link block;
Described horizontal lead screw runs through the installation through hole in link block, the first electromagnet of the link block on described horizontal lead screw is connected with the bottom of described vertical screw mandrel, described vertical screw mandrel runs through the installation through hole in link block, the first electromagnet of the link block on described vertical screw mandrel is connected with described plate, the side that described plate and blackboard are adjacent is provided with inserted link, the outside of described the first plate body, the second plate body and the 3rd plate body is respectively equipped with jack, and described inserted link runs through described jack;
Described brush board portion comprises that one end is vertically fixed on the pillar at the blackboard back side, the other end and the pivoted arm of described pillar are hinged, the one side that the short end of described pivoted arm and blackboard are adjacent is provided with the second electromagnet, the back side of blackboard and described the second electromagnet corresponding section are provided with iron block, the long end underrun coil tension spring of described pivoted arm is connected with the back side of blackboard, and the long end end face of described pivoted arm is provided with the area spongiosa for erasing out handwriting;
The first described motor, the second motor and the 3rd motor are connected with external power source respectively and are provided with switch; The first described electromagnet is connected with external power source respectively with the second electromagnet and is provided with switch.
The bottom of described the first plate body, the second plate body and the 3rd plate body is equipped with for collecting the uncovered collection drawer of chalk dust.
Beneficial effect of the present invention is embodied in: each plate body of (1) blackboard all can move freely, when the writing that need to wipe on it, only this piece plate body need be moved to adjacent plate body after, in the moving process of this piece plate body, brush board portion on adjacent plate body just can take advantage of a situation and wipe the writing on this piece plate body, facilitate handy, and above the blocking under effect an of plate body, dust just can directly not fly away in erase process, is conducive to the healthy of user.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention
Fig. 2 is the structural representation of brush board of the present invention portion
Fig. 3 is the structural representation of link block of the present invention
Fig. 4 is the structural representation of the contiguous block of link block of the present invention
The specific embodiment
With reference to accompanying drawing, automatic-cleaning backboard, comprise blackboard 1 and be centered around its track box 7 around, described blackboard 1 is erected in described track box 7, described blackboard 1 comprise the first plate body 11, second plate body 12 adjacent with the first plate body 11 levels, with vertical adjacent the 3rd plate body 13 of the first plate body 11, one end of described the first plate body 11, the second plate body 12 and the 3rd plate body 13 is respectively equipped with the first moving part 3, and described the first plate body 11, the second plate body 12 and the 3rd plate body 13 all can move left and right along the first described moving part 3; The outside of described the first plate body 11, the second plate body 12 and the 3rd plate body 13 is respectively equipped with the second moving part 5, and described the first plate body 11, the second plate body 12 and the 3rd plate body 13 all can move up and down and move forward and backward along the second described moving part 5; The back side of described the first plate body 11, the second plate body 12 and the 3rd plate body 13 is respectively equipped with for clean brush board portion 2 mutually when mobile;
The first described moving part 3 comprises the first screw mandrel 31 being erected on bearing block 32, one end of described the first screw mandrel 31 is connected with the first motor, described the first screw mandrel 31 is provided with link block 4, and described the first screw mandrel 31 runs through the installation through hole 411 in described link block 4;
Described link block 4 comprises the contiguous block 41 that has installation through hole 411, described contiguous block 41 also has fixed bar through hole 412 in the both sides that through hole 411 is installed, for limiting the fixed bar 43 of contiguous block 41 rotations, run through described fixed bar through hole 412, the two ends of described fixed bar 43 are fixed in track box 7, and the joint face of described contiguous block 41 is provided with the first electromagnet 42;
The first electromagnet 42 of the link block 4 on described the first moving part 3 is connected with the lower end of the 3rd plate body 13 with the upper end of described the first plate body 11, the upper end of the second plate body 12 respectively;
The second described moving part 5 comprises the vertical screw mandrel 51 being connected with the second motor and the horizontal lead screw 52 being connected with the 3rd motor, described horizontal lead screw 52 is connected with described vertical screw mandrel 51 by link block 4, and described vertical screw mandrel 51 is connected with plate 6 by link block 4;
Described horizontal lead screw 52 runs through the installation through hole 411 in link block 4, the first electromagnet 42 of the link block 4 on described horizontal lead screw 52 is connected with the bottom of described vertical screw mandrel 51, described vertical screw mandrel 51 runs through the installation through hole 411 in link block 4, the first electromagnet 42 of the link block 4 on described vertical screw mandrel 51 is connected with described plate 6, the side that described plate 6 is adjacent with blackboard 1 is provided with inserted link 61, the outside of described the first plate body 11, the second plate body 12 and the 3rd plate body 13 is respectively equipped with jack 14, and described inserted link 61 runs through described jack 14;
Described brush board portion 2 comprises that one end is vertically fixed on the pillar 25 at blackboard 1 back side, the other end of described pillar 25 and pivoted arm 21 are hinged, the one side that the short end of described pivoted arm 21 is adjacent with blackboard 1 is provided with the second electromagnet 23, the back side of blackboard 1 and described the second electromagnet 23 corresponding sections are provided with iron block 26, the long end underrun coil tension spring 24 of described pivoted arm 21 is connected with the back side of blackboard 1, and the long end end face of described pivoted arm 21 is provided with the area spongiosa 22 for erasing out handwriting;
The first described motor, the second motor and the 3rd motor are connected with external power source respectively and are provided with switch; The first described electromagnet 42 is connected with external power source respectively with the second electromagnet 23 and is provided with switch.
The bottom of described the first plate body 11, the second plate body 12 and the 3rd plate body 13 is equipped with for collecting the uncovered collection drawer of chalk dust.
Described uncovered collection drawer is the drawer being inserted in the feeder of the first plate body 11, the second plate body 12 and the 3rd plate body 13 bottoms, owing to collecting drawer, can in feeder, freely extract out, chalk dust that can easy cleaning collection.
Described the first plate body 11, the second plate body 12 and the 3rd plate body 13 are fixed on plate 6 by the inserted link 61 being inserted in self jack 14.
The two ends of the fixed bar 43 in described link block 4 are fixed in track box 7, to avoid contiguous block 41 to rotate along with the rotation of screw mandrel.
For wiping the writing on clean blackboard 1, the length of the area spongiosa 22 of the first plate body 11, the second plate body 12 and brush board portion 2 on the 3rd plate body 13 is consistent with the length of side of the first plate body 11, the second plate body 12 and the 3rd plate body 13, and the first plate body 11, the second plate body 12 and the 3rd plate body 13 can be preferably square.
The first described motor, the second described motor and the 3rd described motor are provided with the switch that starts its forward or reverse separately, thereby can control the moving direction of connected screw mandrel.
The housing of blackboard 1 is by being made by the metal material of attraction, by controlling the switch of the first electromagnet 42, whether control and being connected of the first plate body 11, the second plate body 12 and the 3rd plate body 13, when starting the motor being connected with the first screw mandrel 31, horizontal lead screw 52 or vertical screw mandrel 51, also the switch with the first electromagnet 42 in the link block 4 being connected with this screw mandrel to be opened simultaneously, thereby the plate body synchronizing moving being attached thereto can be driven.
With the first plate body 11 adjacent with the second plate body 12 left and right (wherein the first plate body 11 on the left sides), the first plate body 11 and the 3rd plate body 13 neighbouring (wherein the first plate body 11 is in the above) are the operating process of example summary automated cleaning the first plate body 11:
Writing on the first plate body 11 not only can have been wiped but also can have been wiped by the 3rd plate body 13 by the second plate body 12.
1, utilize the second plate body 12 to wipe the operating process of the writing on the first plate body 11 as follows:
(1) first plate body 11 is drawn back:
Start the second moving part 5 on the first plate body 11: when the 3rd motor, horizontal lead screw 52 and vertically after the first electromagnet 42 on screw mandrel 51 switch activated, along with moving backward of horizontal lead screw 52, link block 4 drives vertical screw mandrel 51 to draw back, vertically screw mandrel 51 drives again the first plate body 11 to draw back, when falling back on the front of the first plate body 11 and the brush board portion 2 at second plate body 12 back sides and fit, stop the rotation of the 3rd motor.
(2) the first plate body 11 is moved horizontally to the right:
Start after the first motor of 3: the first moving parts 3 of the first moving part on the first plate body 11 and the first electromagnet 42 on the first screw mandrel 31 switch activated, along with moving right of the first screw mandrel 31, link block 4 drives the first plate body 11 to move right, the inserted link 61 being inserted in the first plate body 11 side jacks 11 is extracted out thereupon, now open the brush board portion 2 at second plate body 12 back sides, regulate brush board portion 2 that its area spongiosa 22 and the first plate body 11 fronts are fitted, in the process moving right at the first plate body 11, area spongiosa 22 is taken advantage of a situation and is wiped the writing on the first plate body 11, and under the effect of blocking of the second plate body 12, dust can directly not fly away above in erase process, be conducive to the healthy of academics and students.
After electromagnet 23 energisings of described brush board portion 2, electromagnet 23 can attract the iron block 26 at first plate body 11 back sides, make the long end perk of pivoted arm 21 go to meet the spacing between two boards body, and under the regulating action of coil tension spring 24, make area spongiosa 22 front of the first plate body 11 of can better fitting, thereby well clash writing.
Coil tension spring 24 can also play the effect of firm described pivoted arm 21 long ends.
After (3) first plate body 11 writings are wiped, the second plate body 12 moves to left:
Start after the first motor of 3: the first moving parts 3 of the first moving part on the second plate body 12 and corresponding the first electromagnet 42 switch activated, along with being moved to the left of the first screw mandrel 31, link block 4 drives the second plate body 12 to be moved to the left, the inserted link 61 being inserted in the second plate body 12 side jacks 14 is extracted out thereupon.
(4) first plate body 11 reaches:
Start after the 3rd motor of 5: the second moving parts 5 of the second moving part on the first plate body 11 and corresponding the first electromagnet 42 switch activated, along with moving forward of horizontal lead screw 52, link block 4 drives vertical screw mandrel 51 to move forward, vertically screw mandrel 51 drives again the first plate body 11 to move forward, when the first plate body 11 when concordant, stops the rotation of the 3rd motor with the second plate body 12.
2, utilize the 3rd plate body 13 to wipe the writing on the first plate body 11, operating process is as follows:
(1) the first plate body 11 is drawn back:
Start after the 3rd motor on 5: the second moving parts 5 of the second moving part on the first plate body 11 and corresponding the first electromagnet 42 switch activated, along with moving backward of horizontal lead screw 52, link block 4 drives vertical screw mandrel 51 to draw back, vertically screw mandrel 51 drives again the first plate body 11 to draw back, when falling back on the front of the first plate body 11 and the brush board portion 2 at the 3rd plate body 13 back sides and fit, stop the rotation of the 3rd motor.
(2) the first plate body 11 is moved down:
Start after the second motor of 5: the second moving parts 5 of the second moving part on the first plate body 11 and corresponding the first electromagnet 42 switch activated, along with moving down of vertical screw mandrel 51, link block 4 drives the first plate body 11 to move down, now open the brush board portion 2 at the 3rd plate body 13 back sides, regulate brush board portion 2 to be fitted completely in the front of its area spongiosa 22 and the first plate body 11, in the process moving down at the first plate body 11, area spongiosa 22 is taken advantage of a situation and is wiped the writing on described the first plate body 11, and under the effect of blocking of the 3rd plate body 13, dust can directly not fly away above in erase process, be conducive to the healthy of academics and students.
(3), after writing is wiped, on the 3rd plate body 13, move:
Start after the second motor of 5: the second moving parts 5 of the second moving part on the 3rd plate body 13 and corresponding the first electromagnet 42 switch activated, along with moving up of vertical screw mandrel 51, link block 4 drives the 3rd plate bodys 13 to move up.
(4) first plate body 11 reaches:
Start after the 3rd motor of 5: the second moving parts 5 of the second moving part on the first plate body 11 and corresponding the first electromagnet 42 switch activated, along with moving forward of horizontal lead screw 52, link block 4 drives vertical screw mandrel 51 to move forward, vertically screw mandrel 51 drives again the first plate body 11 to move forward, when the first plate body 11 when concordant, stops the rotation of the 3rd motor with the 3rd plate body 13.
3, in like manner, the second plate body 12 can be moved to the left, utilize the brush board portion 2 arranging on the first plate body 11 to wipe the writing on the second plate body 12:
(1) second plate body 12 is drawn back:
Start on the 3rd motor, horizontal lead screw 52 of 5: the second moving parts 5 of the second moving part on the second plate body 12 and vertically after the first electromagnet 42 on screw mandrel 51 switch activated, along with moving backward of horizontal lead screw 52, link block 4 drives vertical screw mandrel 51 to draw back, vertically screw mandrel 51 drives again the second plate body 11 to draw back, when falling back on the front of the second plate body 12 and the brush board portion 2 at first plate body 11 back sides and fit, stop the rotation of the 3rd motor.
(2) the second plate body 12 is moved horizontally left:
Start after the first motor of 3: the first moving parts 3 of the first moving part on the second plate body 12 and the first electromagnet 42 on the first screw mandrel 31 switch activated, along with being moved to the left of the first screw mandrel 31, link block 4 drives the second plate body 12 to be moved to the left, the inserted link 61 being inserted in the second plate body 12 side jacks 11 is extracted out thereupon, now open the brush board portion 2 at first plate body 11 back sides, regulate brush board portion 2 that its area spongiosa 22 and the second plate body 12 fronts are fitted, in the process being moved to the left at the second plate body 12, area spongiosa 22 is taken advantage of a situation and is wiped the writing on the second plate body 12, and under the effect of blocking of the first plate body 11, dust can directly not fly away above in erase process, be conducive to the healthy of academics and students.
After (3) second plate body 12 writings are wiped, the first plate body 11 moves to right:
Start after the first motor on 3: the first moving parts 3 of the first moving part on the first plate body 11 and corresponding the first electromagnet 42 switch activated, along with moving right of the first screw mandrel 31, link block 4 drives the first plate body 11 to move right, and the inserted link 61 being inserted in the first plate body 11 side jacks 14 is extracted out thereupon.
(4) second plate body 12 reaches:
Start after the 3rd motor on 5: the second moving parts 5 of the second moving part on the second plate body 12 and corresponding the first electromagnet 42 switch activated, along with moving forward of horizontal lead screw 52, link block 4 drives vertical screw mandrel 51 to move forward, vertically screw mandrel 51 drives again the second plate body 12 to move forward, when the second plate body 12 when concordant, stops the rotation of the 3rd motor with the first plate body 11.
4, in like manner, the 3rd plate body 13 can also be moved up, utilize the brush board portion 2 arranging on the first plate body 11 to wipe the writing on the 3rd plate body 13:
(1) the 3rd plate body 13 is drawn back:
Start after the 3rd motor on 5: the second moving parts 5 of the second moving part on the 3rd plate body 13 and corresponding the first electromagnet 42 switch activated, along with moving backward of horizontal lead screw 52, link block 4 drives vertical screw mandrel 51 to draw back, vertically screw mandrel 51 drives again the first plate body 11 to draw back, when falling back on the front of the 3rd plate body 13 and the brush board portion 2 at first plate body 11 back sides and fit, stop the rotation of the 3rd motor.
(3) the 3rd plate body 13 is moved up:
Start after the second motor of 5: the second moving parts 5 of the second moving part on the 3rd plate body 13 and corresponding the first electromagnet 42 switch activated, along with moving up of vertical screw mandrel 51, link block 4 drives the 3rd plate body 13 to move up, now open the brush board portion 2 at first plate body 11 back sides, regulate brush board portion 2 to be fitted completely in the front of its area spongiosa 22 and the 3rd plate body 13, in the process moving up at the 3rd plate body 13, area spongiosa 22 is taken advantage of a situation and is wiped the writing on described the 3rd plate body 13, and under the effect of blocking of the first plate body 11, dust can directly not fly away above in erase process, be conducive to the healthy of academics and students.
(3), after writing is wiped, the first plate body 11 moves down:
Start after the second motor of 5: the second moving parts 5 of the second moving part on the first plate body 11 and corresponding the first electromagnet 42 switch activated, along with moving down of vertical screw mandrel 51, link block 4 drives the first plate bodys 11 to move down.
(4) the 3rd plate body 13 reaches:
Start after the 3rd motor of 5: the second moving parts 5 of the second moving part on the 3rd plate body 13 and corresponding the first electromagnet 42 switch activated, along with moving forward of horizontal lead screw 52, link block 4 drives vertical screw mandrel 51 to move forward, vertically screw mandrel 51 drives again the 3rd plate body 13 to move forward, when the 3rd plate body 13 when concordant, stops the rotation of the 3rd motor with the first plate body 11.
Content described in this description embodiment is only exemplifying the way of realization of inventive concept; protection scope of the present invention should not be regarded as only limiting to the concrete form of embodiment statement, and protection scope of the present invention also and in those skilled in the art, according to the present invention, conceive the equivalent technologies means that can expect.
Claims (2)
1. automatic-cleaning backboard, comprise blackboard and be centered around its track box around, described easel is located in described track box, described blackboard comprise the first plate body, second plate body adjacent with the first plate body level, with vertical adjacent the 3rd plate body of the first plate body, it is characterized in that: one end of the first described plate body, the second plate body and the 3rd plate body is respectively equipped with the first moving part, the first described plate body, the second plate body and the 3rd plate body all can move left and right along the first described moving part; The outside of described the first plate body, the second plate body and the 3rd plate body is respectively equipped with the second moving part, and the first described plate body, the second plate body and the 3rd plate body all can move up and down and move forward and backward along the second described moving part; The back side of the first described plate body, the second plate body and the 3rd plate body is respectively equipped with for clean brush board portion mutually when mobile;
The first described moving part comprises the first screw mandrel being erected on bearing block, and one end of described the first screw mandrel is connected with the first motor, and described the first screw mandrel is provided with link block, and described the first screw mandrel runs through the installation through hole in described link block;
Described link block comprises the contiguous block that has installation through hole, described contiguous block also has fixed bar through hole in the both sides that through hole is installed, for limiting the fixed bar of contiguous block rotation, run through described fixed bar through hole, the two ends of described fixed bar are fixed in track box, and the joint face of described contiguous block is provided with the first electromagnet;
The first electromagnet of the link block on described the first moving part is connected with the lower end of the 3rd plate body with the upper end of described the first plate body, the upper end of the second plate body respectively;
The second described moving part comprises the vertical screw mandrel being connected with the second motor and the horizontal lead screw being connected with the 3rd motor, and described horizontal lead screw is connected with described vertical screw mandrel by link block, and described vertical screw mandrel is connected with plate by link block;
Described horizontal lead screw runs through the installation through hole in link block, the first electromagnet of the link block on described horizontal lead screw is connected with the bottom of described vertical screw mandrel, described vertical screw mandrel runs through the installation through hole in link block, the first electromagnet of the link block on described vertical screw mandrel is connected with described plate, the side that described plate and blackboard are adjacent is provided with inserted link, the outside of described the first plate body, the second plate body and the 3rd plate body is respectively equipped with jack, and described inserted link runs through described jack;
Described brush board portion comprises that one end is vertically fixed on the pillar at the blackboard back side, the other end and the pivoted arm of described pillar are hinged, the one side that the short end of described pivoted arm and blackboard are adjacent is provided with the second electromagnet, the back side of blackboard and described the second electromagnet corresponding section are provided with iron block, the long end underrun coil tension spring of described pivoted arm is connected with the back side of blackboard, and the long end end face of described pivoted arm is provided with the area spongiosa for erasing out handwriting;
The first described motor, the second motor and the 3rd motor are connected with external power source respectively and are provided with switch; The first described electromagnet is connected with external power source respectively with the second electromagnet and is provided with switch.
2. automatic-cleaning backboard as claimed in claim 1, is characterized in that: the bottom of described the first plate body, the second plate body and the 3rd plate body is equipped with for collecting the uncovered collection drawer of chalk dust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410334594.XA CN104129205B (en) | 2014-07-15 | 2014-07-15 | Automatic cleaning blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410334594.XA CN104129205B (en) | 2014-07-15 | 2014-07-15 | Automatic cleaning blackboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104129205A true CN104129205A (en) | 2014-11-05 |
| CN104129205B CN104129205B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410334594.XA Active CN104129205B (en) | 2014-07-15 | 2014-07-15 | Automatic cleaning blackboard |
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| CN (1) | CN104129205B (en) |
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| CN104330949A (en) * | 2014-12-03 | 2015-02-04 | 中国计量学院 | Blackboard writing projection mechanism for teaching |
| CN104330950A (en) * | 2014-12-03 | 2015-02-04 | 中国计量学院 | Blackboard-writing projecting system for teaching |
| CN104345539A (en) * | 2014-12-03 | 2015-02-11 | 中国计量学院 | Control method of teaching blackboard writing projection system |
| CN104375368A (en) * | 2014-12-03 | 2015-02-25 | 中国计量学院 | Control method of blackboard-writing projector mechanism for teaching |
| CN105216495A (en) * | 2015-10-19 | 2016-01-06 | 石家庄科达文教用品有限公司 | Manual monoblock type dry erasing writing board |
| CN105291664A (en) * | 2015-11-19 | 2016-02-03 | 广东工业大学 | Rotation type blackboard |
| CN106379081A (en) * | 2016-10-25 | 2017-02-08 | 林姝霓 | Automatic blackboard wiping device for teaching |
| CN111469584A (en) * | 2020-01-19 | 2020-07-31 | 浙江水利水电学院 | Automatically cleaning blackboard based on singlechip |
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| CN104330949A (en) * | 2014-12-03 | 2015-02-04 | 中国计量学院 | Blackboard writing projection mechanism for teaching |
| CN104330950A (en) * | 2014-12-03 | 2015-02-04 | 中国计量学院 | Blackboard-writing projecting system for teaching |
| CN104345539A (en) * | 2014-12-03 | 2015-02-11 | 中国计量学院 | Control method of teaching blackboard writing projection system |
| CN104375368A (en) * | 2014-12-03 | 2015-02-25 | 中国计量学院 | Control method of blackboard-writing projector mechanism for teaching |
| CN104375368B (en) * | 2014-12-03 | 2016-10-19 | 中国计量学院 | The control method of teaching board book projector mechanism |
| CN105216495A (en) * | 2015-10-19 | 2016-01-06 | 石家庄科达文教用品有限公司 | Manual monoblock type dry erasing writing board |
| CN105216495B (en) * | 2015-10-19 | 2017-01-25 | 石家庄科达文教用品有限公司 | Manual integral dry wiping writing board |
| CN105291664A (en) * | 2015-11-19 | 2016-02-03 | 广东工业大学 | Rotation type blackboard |
| CN105291664B (en) * | 2015-11-19 | 2017-03-22 | 广东工业大学 | Rotation type blackboard |
| CN106379081A (en) * | 2016-10-25 | 2017-02-08 | 林姝霓 | Automatic blackboard wiping device for teaching |
| CN111469584A (en) * | 2020-01-19 | 2020-07-31 | 浙江水利水电学院 | Automatically cleaning blackboard based on singlechip |
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| CN104129205B (en) | 2015-10-28 |
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