CN114161867A - Wisdom blackboard that can multi-angle was adjusted - Google Patents
Wisdom blackboard that can multi-angle was adjusted Download PDFInfo
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- CN114161867A CN114161867A CN202111584093.3A CN202111584093A CN114161867A CN 114161867 A CN114161867 A CN 114161867A CN 202111584093 A CN202111584093 A CN 202111584093A CN 114161867 A CN114161867 A CN 114161867A
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- blackboard
- intelligent
- frame
- adjusting
- intelligent blackboard
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- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 125000003003 spiro group Chemical group 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
- A47B97/04—Easels or stands for blackboards or the like
-
- 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
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/004—Repeatedly-usable boards or tablets for writing or drawing with illuminating devices
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
Abstract
The invention relates to the technical field of intelligent blackboards, and discloses a multi-angle adjustable intelligent blackboard which comprises a base, wherein a rotating shaft is installed at the top of the base, a rotating external member is installed at the top of the rotating shaft, a positioning plate is fixed on the outer side of the rotating external member, adjusting frames are fixed on two sides of the positioning plate, a supporting frame is installed on the outer side of each adjusting frame, a positioning block is connected to the top end of each supporting frame in a sliding mode, and a connecting block is installed on the outer side of each positioning block. This wisdom blackboard that can multi-angle was adjusted through installing the rotation axis on the base, is convenient for adjust the angle about the locating plate as required, through installing adjusting screw and adjusting module on the alignment jig, the adjusting module who is convenient for drive the spiro union by the transmission shaft adjusting position on the alignment jig, promotes the angle of alignment jig adjustment blackboard to the position of inconvenient as required adjustment face at any time of use has been solved, there is the problem of limitation.
Description
Technical Field
The invention relates to the technical field of intelligent blackboards, in particular to an intelligent blackboard capable of being adjusted in multiple angles.
Background
An interactive blackboard (intelligent blackboard for short) for a smart classroom is a traditional handwriting blackboard and multimedia equipment combined by adopting a capacitive touch technology, and is easily switched between chalk blackboard writing and multimedia application, the same area of the blackboard can be used for normally writing with chalk as a common blackboard, and can also be used for watching various rich multimedia applications such as PPT videos, pictures, animations and the like by hand touch as PAD, so that the traditional and modern combination is realized, the combination of traditional teaching and electronic teaching can be realized, and the teaching effect is improved.
Chinese patent publication No. CN212022119U proposes an intelligent blackboard, which comprises a blackboard frame body with a cavity inside, a touch window is arranged at the middle part of the blackboard frame body, a touch screen positioned at the rear part of the touch window is installed on the blackboard frame body, a left sliding plate and a right sliding plate for opening or closing the touch window are arranged in the blackboard frame body in a relative sliding manner, the left sliding plate and the right sliding plate are positioned in front of the touch screen, a notch is arranged on the side edge of the left sliding plate opposite to the right sliding plate, a raised line matched and spliced with the notch is arranged on the side edge of the right sliding plate, a plurality of limiting blocks for limiting the outer ends of the left sliding plate and the right sliding plate are arranged on the upper surface of the blackboard frame body, the limiting blocks are positioned at the corners of the touch window, two sliding plates are arranged in the blackboard frame body in a sliding manner and are matched and spliced by adopting the notch and the raised line, the limiting blocks limit the outer ends of the two sliding plates, so that when the two sliding plates are spliced and the touch window is closed, two slides play the guard action to the touch-control screen, and the space at make full use of middle part writes, and easy operation is convenient, but this wisdom blackboard is after the installation is accomplished, and the position of inconvenient according to the use needs adjustment face at any time has the limitation.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the intelligent blackboard capable of being adjusted at multiple angles, and solves the problem that the position of the blackboard surface is inconvenient to adjust at any time according to use requirements, and limitation exists.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: an intelligent blackboard capable of being adjusted at multiple angles comprises a base, wherein a rotating shaft is arranged at the top of the base, the top of the rotating shaft is provided with a rotating sleeve, the outer side of the rotating sleeve is fixed with a positioning plate, both sides of the positioning plate are fixed with adjusting frames, a supporting frame is arranged on the outer side of the adjusting frame, a positioning block is connected to the top end of the supporting frame in a sliding manner, a connecting block is arranged on the outer side of the positioning block, a positioning frame is arranged on the connecting block, the bottom end of the positioning frame is rotatably connected with an adjusting module, a blackboard frame is fixed on the inner side of the positioning frame, the blackboard frame is provided with an intelligent board surface and a writing board surface, the base is provided with a photosensitive element, the writing board is provided with the lamp strip all around, photosensitive element is connected with the lamp strip electricity, control panel is connected with small-size motor, drive gear and wisdom face electricity, a set of universal wheel is all installed in base bottom four corners.
Preferably, the surface of the rotating shaft is fixed with a limiting ring, and the surface of the limiting ring is in contact with the bottom of the rotating sleeve.
Preferably, the surface of the limiting ring is fixed with a limiting column, and the bottom of the rotating sleeve is provided with a limiting groove matched with the limiting column.
Preferably, two sets of install the transmission shaft between the alignment jig, the small-size motor is installed to the alignment jig rear end on right side, and the small-size motor output is connected with the transmission shaft key, and the transmission shaft meshes with adjusting screw rear end.
Preferably, a set of drive gear is all installed to the blackboard frame both sides, and the inside sliding connection of blackboard frame has the wisdom face and places the frame, and first rack and second rack are installed respectively to the wisdom face and the frame outside of placing, install drive gear between first rack and the second rack.
Preferably, place the frame and openly install two sets of writing boards, two sets of writing boards are curved face.
Preferably, the bottom end of the writing board surface is provided with a chalk groove, and the middle part of the chalk groove is provided with a cleaning through hole.
Preferably, the intelligent board surface is provided with a control panel.
Preferably, the adjusting frame is internally provided with an adjusting screw and an adjusting module, and the adjusting screw is in threaded connection with the adjusting module.
A control method of an intelligent blackboard capable of being adjusted at multiple angles comprises the following steps:
1) starting up: and the intelligent blackboard is electrified to operate, the connection state of the control panel and the intelligent blackboard is waited to be detected, when the intelligent blackboard is in the connection state, the intelligent blackboard displays a welcome interface, and if the intelligent blackboard is not in the connection state, the intelligent blackboard displays a corresponding error code.
2) Primary adjustment: the button of the small motor on the starting control panel, the controller controls the small motor to start according to the signal, and the whole angle of the intelligent blackboard is adjusted.
3) Secondary adjustment: the button of the transmission gear on the control panel is started, and the controller controls the transmission gear to start according to the signal and adjusts the positions of the writing board surface and the intelligent board surface.
4) Beginning teaching: and starting a button of the intelligent board on the control panel, and controlling the intelligent board to start by the controller according to the signal and displaying a teaching video.
5) Controlling the brightness: the photosensitive element detects the indoor light intensity and transmits the signal to the controller, and the controller controls the lamp strip to be opened and adjusts the brightness.
(III) advantageous effects
Compared with the prior art, the invention provides the intelligent blackboard capable of being adjusted at multiple angles, which has the following beneficial effects:
1. this wisdom blackboard that can multi-angle was adjusted through installing the rotation axis on the base, is convenient for adjust the angle about the locating plate as required, through installing adjusting screw and adjusting module on the alignment jig, the adjusting module who is convenient for drive the spiro union by the transmission shaft adjusting position on the alignment jig, promotes the angle of alignment jig adjustment blackboard to the position of inconvenient as required adjustment face at any time of use has been solved, there is the problem of limitation.
2. This wisdom blackboard that but multi-angle was adjusted, through rotation axis fixed surface limit ring, the contact of limit ring surface and rotatory external member bottom is convenient for restrict by the mounted position of limit ring pairing rotation external member, through limit ring fixed surface limit post, the spacing groove that matches with limit post is seted up to rotatory external member bottom, is convenient for restrict rotatory external member pivoted maximum angle by limit post, prevents that rotatory external member rotation angle from excessively making the blackboard damage.
3. This wisdom blackboard that can multi-angle was adjusted openly installs two sets of boards through placing the frame, and two sets of boards are curved face, just have to make through arc face and watch the sight and do not have the dead angle, and effectively avoid the face reflection of light, are provided with the chalk groove through writing the face bottom, and clean through-hole has been seted up at chalk groove middle part, are convenient for make the chalk dust drop among the chalk groove to conveniently clean through-hole.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a positioning frame according to the present invention;
FIG. 3 is an exploded view of a portion of the structure of the present invention;
FIG. 4 is a system diagram of the architecture of the present invention.
In the figure: 1. a base; 2. a rotating shaft; 3. a limiting ring; 4. rotating the sleeve; 5. positioning a plate; 6. an adjusting bracket; 7. adjusting the screw rod; 8. an adjustment module; 9. a positioning frame; 10. a joining block; 11. positioning blocks; 12. a support frame; 13. a drive shaft; 14. a small-sized motor; 15. a blackboard frame; 16. a first rack; 17. a smart board surface; 18. a control panel; 19. a transmission gear; 20. a second rack; 21. placing the frame; 22. a writing board surface; 23. a universal wheel; 24. a light sensitive element.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a multi-angle adjustable intelligent blackboard comprises a base 1, wherein a rotating shaft 2 is installed at the top of the base 1, a rotating suite 4 is installed at the top of the rotating shaft 2, a positioning plate 5 is fixed at the outer side of the rotating suite 4, adjusting frames 6 are fixed at both sides of the positioning plate 5, a supporting frame 12 is installed at the outer side of the adjusting frame 6, a positioning block 11 is slidably connected to the top end of the supporting frame 12, an engaging block 10 is installed at the outer side of the positioning block 11, a positioning frame 9 is installed on the engaging block 10, an adjusting module 8 is rotatably connected to the bottom end of the positioning frame 9, a blackboard frame 15 is fixed at the inner side of the positioning frame 9, an intelligent board 17 and a writing board 22 are arranged on the blackboard frame 15, a photosensitive element 24 is installed on the base 1, light bars are arranged around the writing board 22, the photosensitive element 24 is electrically connected with the light bars, an intelligent control panel 18 is electrically connected with a small motor 14, a transmission gear 19 and the board 17, a group of universal wheels 23 are installed at four corners of the bottom of the base 1, the angle about blackboard frame 15 is conveniently adjusted through rotation axis 2 to according to the illumination condition at scene, drive locating rack 9 angle of adjustment through adjusting screw 7, make the people of back row see the content on the blackboard clearly, according to the user demand, through the position of drive gear 19 control wisdom face 17 and writing board face 22, improve the practicality simultaneously.
Specifically, in order to facilitate the position of the rotation sleeve 4 to be limited, the surface of the rotation shaft 2 is fixed with the limiting ring 3, the surface of the limiting ring 3 is in contact with the bottom of the rotation sleeve 4, the position of the rotation sleeve 4 is limited through the limiting ring 3, and the rotation sleeve 4 is prevented from being installed in place.
Specifically, for the convenience of limiting the rotation angle of the rotating sleeve 4, the limiting column is fixed on the surface of the limiting ring 3, the limiting groove matched with the limiting column is formed in the bottom of the rotating sleeve 4, and the rotating sleeve 4 is limited by the limiting column to limit the maximum rotation angle of the rotating sleeve 4, so that the rotation angle of the rotating sleeve 4 is prevented from being too large.
Concretely, for the convenience of driving both sides adjusting screw 7 simultaneously and rotating, install transmission shaft 13 between two sets of alignment brackets 6, small motor 14 is installed to the 6 rear ends of alignment bracket on right side, and small motor 14 output and 13 key-type connections of transmission shaft, transmission shaft 13 and 7 rear end meshing of adjusting screw drive shaft through small motor 14 drive transmission shaft 13 and rotate to make both sides adjusting screw 7 move simultaneously.
Concretely, for the convenience of adjusting wisdom face 17 and the position of placing frame 21, a set of drive gear 19 is all installed to blackboard frame 15 both sides, the inside sliding connection of blackboard frame 15 has wisdom face 17 and places frame 21, wisdom face 17 and place the frame 21 outside and install first rack 16 and second rack 20 respectively, install drive gear 19 between first rack 16 and the second rack 20, when drive gear 19 rotates, drive the wisdom face 17 of both sides and place frame 21 and change the position simultaneously, it is more convenient when using.
Specifically, in order to facilitate checking the blackboard writing, the two groups of writing boards 22 are arranged on the front surface of the frame 21, the two groups of writing boards 22 are arc-shaped boards, the arc-shaped boards enable the watching line to have no dead angle, and the board reflection is effectively avoided.
Specifically, in order to collect the chalk dust, the bottom end of the writing board surface 22 is provided with a chalk groove, a cleaning through hole is formed in the middle of the chalk groove, and the chalk dust falls into the chalk groove and is cleaned conveniently through the cleaning through hole.
Specifically, in order to control the intelligent board 17, the control panel 18 is installed on the intelligent board 17, so that the intelligent board 17 is more convenient to operate.
Specifically, in order to adjust the position of the adjusting module 8, the adjusting frame 6 is internally provided with an adjusting screw 7 and an adjusting module 8, the adjusting screw 7 is in threaded connection with the adjusting module 8, and the adjusting screw 7 rotates to drive the adjusting module 8 to adjust the position, so that the positioning frame 9 adjusts the angle.
A control method of an intelligent blackboard capable of being adjusted at multiple angles comprises the following steps:
1) starting up: the intelligent blackboard is electrified to operate, the connection state of the control panel and the intelligent blackboard is waited to be detected, when the intelligent blackboard is in the connection state, the intelligent blackboard surface 17 displays a welcome interface, and if the intelligent blackboard is not in the connection state, the intelligent blackboard surface 17 displays corresponding error codes.
2) Primary adjustment: the button of the small motor 14 on the control panel 18 is started, and the controller controls the small motor 14 to start according to the signal and adjusts the whole angle of the intelligent blackboard.
3) Secondary adjustment: the button of the transmission gear 19 on the control panel 18 is started, and the controller controls the transmission gear 19 to start according to the signal and adjusts the positions of the writing board surface 22 and the intelligent board surface 17.
4) Beginning teaching: and starting a button of the intelligent board surface 17 on the control panel 18, and controlling the intelligent board surface 17 to start according to the signal by the controller and displaying a teaching video.
5) Controlling the brightness: the light sensor 24 detects the indoor light intensity and transmits a signal to the controller, and the controller controls the light bar to be turned on and adjusts the brightness.
The working principle is as follows: promote the wisdom blackboard on the assigned position, when using, rotate the angle of locating plate 5 according to the use needs, and open small motor 14 through control panel 18 and make adjusting screw 7 rotate, drive spiro union adjusting module 8 adjusting position on alignment jig 6, promote locating rack 9, the angle of adjustment blackboard, make things convenient for the student to look over the blackboard writing on the blackboard, when needs use wisdom face 17, through control panel 18 control drive gear 19 operation, drive the first rack 16 and the second rack 20 removal of drive gear 19 both sides, make wisdom face 17 descend and write face 22 and rise simultaneously, and control wisdom face 17 through control panel 18 and carry out teaching work, when indoor light is darker at night, photosensitive element 24 control writes face 22 lamp strip all around and opens, make things convenient for the student to see the blackboard clearly more.
In conclusion, the multi-angle adjustable intelligent blackboard is characterized in that the rotating shaft 2 is arranged on the base 1, the left and right angles of the positioning plate 5 can be conveniently adjusted according to use requirements, the adjusting screw 7 and the adjusting module 8 are arranged on the adjusting frame 6, the adjusting module 8 in threaded connection is conveniently driven by the transmission shaft 13 to adjust the position on the adjusting frame 6, and the positioning frame 9 is pushed to adjust the angle of the blackboard, so that the problem that the position of the blackboard surface is inconvenient to adjust at any time according to use requirements and limitation exists is solved, the limiting ring 3 is fixed on the surface of the rotating shaft 2, the surface of the limiting ring 3 is contacted with the bottom of the rotating sleeve 4, the installation position of the rotating sleeve 4 is conveniently limited by the limiting ring 3, the limiting column is fixed on the surface of the limiting ring 3, the limiting groove matched with the limiting column is formed in the bottom of the rotating sleeve 4, and the rotating maximum angle of the rotating sleeve 4 is conveniently limited by the limiting column, prevent that 4 rotation angles of rotatory external member from excessively making the blackboard damage, openly install two sets of writing boards 22 through placing frame 21, two sets of writing boards 22 are curved face, just have to make through the arc face and watch the sight and do not have the dead angle, and effectively avoid the face reflection of light, are provided with the chalk groove through writing board 22 bottom, and clean through-hole has been seted up at chalk groove middle part, are convenient for make the chalk dust drop among the chalk groove to conveniently clean through-hole.
The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a but wisdom blackboard of multi-angle modulation, includes base (1), rotation axis (2), its characterized in that are installed at base (1) top: rotatory external member (4) is installed at rotation axis (2) top, rotatory external member (4) outside is fixed with locating plate (5), locating plate (5) both sides all are fixed with alignment jig (6), support frame (12) are installed in alignment jig (6) outside, support frame (12) top sliding connection has locating piece (11), linking piece (10) is installed in the locating piece (11) outside, install locating rack (9) on linking piece (10), alignment jig (9) bottom is rotated and is connected with adjusting module (8), alignment jig (9) inboard is fixed with blackboard frame (15), be provided with wisdom face (17) and writing board face (22) on blackboard frame (15), install light sensitive element (24) on base (1), writing board face (22) is provided with the lamp strip all around, light sensitive element (24) are connected with the lamp strip electricity, control panel (18) are connected with small motor (14), drive gear (19) and wisdom face (17) electricity, a set of universal wheel (23) are all installed to base (1) bottom four corners.
2. The intelligent blackboard of claim 1, wherein the blackboard includes: the surface of the rotating shaft (2) is fixed with a limiting ring (3), and the surface of the limiting ring (3) is contacted with the bottom of the rotating sleeve piece (4).
3. The intelligent blackboard of claim 2, wherein the blackboard includes: the surface of the limiting ring (3) is fixed with a limiting column, and the bottom of the rotating sleeve piece (4) is provided with a limiting groove matched with the limiting column.
4. The intelligent blackboard of claim 1, wherein the blackboard includes: two sets of install transmission shaft (13) between alignment jig (6), small-size motor (14) are installed to alignment jig (6) rear end on right side, and small-size motor (14) output and transmission shaft (13) key-type connection, transmission shaft (13) and adjusting screw (7) rear end meshing.
5. The intelligent blackboard of claim 1, wherein the blackboard includes: a set of drive gear (19) is all installed to blackboard frame (15) both sides, and blackboard frame (15) inside sliding connection has wisdom face (17) and places frame (21), and first rack (16) and second rack (20) are installed respectively to wisdom face (17) and place frame (21) outside, install drive gear (19) between first rack (16) and second rack (20).
6. The intelligent blackboard of claim 5, wherein the blackboard includes: the front surface of the placement frame (21) is provided with two groups of writing board surfaces (22), and the two groups of writing board surfaces (22) are arc-shaped board surfaces.
7. The intelligent blackboard of claim 6, wherein the blackboard includes: the bottom end of the writing board surface (22) is provided with a chalk groove, and the middle part of the chalk groove is provided with a cleaning through hole.
8. The intelligent blackboard of claim 1, wherein the blackboard includes: and a control panel (18) is arranged on the intelligent board surface (17).
9. The intelligent blackboard of claim 1, wherein the blackboard includes: adjusting screw (7) and adjusting module (8) are installed in adjusting bracket (6), and adjusting screw (7) and adjusting module (8) spiro union.
10. A control method of an intelligent blackboard capable of being adjusted at multiple angles is characterized by comprising the following steps:
1) starting up: the intelligent blackboard is electrified and operated, the connection state of the control panel and the intelligent blackboard is waited to be detected, when the intelligent blackboard is in the connection state, the intelligent blackboard displays a welcome interface, and if the intelligent blackboard is not in the connection state, the intelligent blackboard displays corresponding error codes;
2) primary adjustment: starting a button of a small motor on the control panel, and controlling the small motor to start by the controller according to a signal and adjusting the overall angle of the intelligent blackboard;
3) secondary adjustment: a button of a transmission gear on the control panel is started, and the controller controls the transmission gear to start according to signals and adjusts the positions of the writing board surface and the intelligent board surface;
4) beginning teaching: starting a button of the intelligent board on the control panel, controlling the intelligent board to start by the controller according to the signal, and displaying a teaching video;
5) controlling the brightness: the photosensitive element detects the indoor light intensity and transmits the signal to the controller, and the controller controls the lamp strip to be opened and adjusts the brightness.
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CN202111584093.3A CN114161867A (en) | 2021-12-22 | 2021-12-22 | Wisdom blackboard that can multi-angle was adjusted |
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CN202111584093.3A CN114161867A (en) | 2021-12-22 | 2021-12-22 | Wisdom blackboard that can multi-angle was adjusted |
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Citations (7)
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CN107633780A (en) * | 2017-11-17 | 2018-01-26 | 朱建华 | A kind of Multifunctional education Graphic Panel |
CN211016409U (en) * | 2020-01-18 | 2020-07-14 | 张尧斌 | Engineering cost is with show board convenient to fixed paper |
CN211483655U (en) * | 2019-11-04 | 2020-09-15 | 董立娟 | Chinese teaching auxiliary device |
CN112365772A (en) * | 2020-11-11 | 2021-02-12 | 拜肯创意智能科技(杭州)有限公司 | Display device for public education with rotation function |
CN112406371A (en) * | 2020-11-20 | 2021-02-26 | 安徽文香信息技术有限公司 | Rotary lifting type intelligent blackboard and control system thereof |
CN112509389A (en) * | 2020-12-01 | 2021-03-16 | 安徽文香信息技术有限公司 | Wisdom blackboard mobile device based on integrative contraction type |
CN213096988U (en) * | 2020-04-28 | 2021-05-04 | 湖北师范大学 | Law study is with removing presentation device |
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2021
- 2021-12-22 CN CN202111584093.3A patent/CN114161867A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107633780A (en) * | 2017-11-17 | 2018-01-26 | 朱建华 | A kind of Multifunctional education Graphic Panel |
CN211483655U (en) * | 2019-11-04 | 2020-09-15 | 董立娟 | Chinese teaching auxiliary device |
CN211016409U (en) * | 2020-01-18 | 2020-07-14 | 张尧斌 | Engineering cost is with show board convenient to fixed paper |
CN213096988U (en) * | 2020-04-28 | 2021-05-04 | 湖北师范大学 | Law study is with removing presentation device |
CN112365772A (en) * | 2020-11-11 | 2021-02-12 | 拜肯创意智能科技(杭州)有限公司 | Display device for public education with rotation function |
CN112406371A (en) * | 2020-11-20 | 2021-02-26 | 安徽文香信息技术有限公司 | Rotary lifting type intelligent blackboard and control system thereof |
CN112509389A (en) * | 2020-12-01 | 2021-03-16 | 安徽文香信息技术有限公司 | Wisdom blackboard mobile device based on integrative contraction type |
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