CN112967536A - Electronic commerce teaching device - Google Patents
Electronic commerce teaching device Download PDFInfo
- Publication number
- CN112967536A CN112967536A CN202110251940.8A CN202110251940A CN112967536A CN 112967536 A CN112967536 A CN 112967536A CN 202110251940 A CN202110251940 A CN 202110251940A CN 112967536 A CN112967536 A CN 112967536A
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- China
- Prior art keywords
- fixedly connected
- sliding
- plate
- electronic commerce
- drive
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- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Displays For Variable Information Using Movable Means (AREA)
Abstract
The invention discloses an electronic commerce teaching device, which relates to the technical field of teaching devices and comprises a bottom plate, wherein two first bearings are clamped in the bottom plate, the lower end optical axis of a screw rod is sleeved in the first bearings, and the outer surface of the screw rod is in threaded connection with a threaded sleeve. This electronic commerce teaching device, drive bevel gear two through the motor and rotate, bevel gear two is through the cooperation with bevel gear one, can drive the screw rod on right side and rotate, the screw rod on right side can drive left screw rod through the cooperation with two sprocket and chain and rotate, the screw rod is through with slide bar one, the cooperation of sliding sleeve one and thread bush can drive fixed plate one and upwards remove, can drive the blank rebound through fixed plate one, thereby promote the height of blank, so that students can be better watch the teaching content that the instructor wrote on the blank, if make a motor antiport, alright make blank rebound, thereby can reduce the shared space of the device, so that deposit.
Description
Technical Field
The invention relates to the technical field of teaching devices, in particular to an electronic commerce teaching device.
Background
At present, electronic commerce is very popular and popular, and generally, when electronic commerce teaching is carried out, teaching contents need to be displayed for audiences of lectures, so that the audiences can understand better, and business teaching equipment needs to be used.
And present most of electronic commerce teaching device functional at present is comparatively single, can't fold moreover to very occupation space, and can't adjust the position of blank, thereby can lead to the position of blank eminence to be unable by utilizing, and present commercial teaching device lacks the protection setting to electronic display screen, thereby leads to the display screen to receive to collide with very easily, we provide an electronic commerce teaching device according to above problem.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an electronic commerce teaching device, which solves the problems that most of the existing electronic commerce teaching devices can not be folded, so that the space is occupied, the positions of white boards can not be adjusted, so that the positions at the high positions of the white boards can not be utilized, and the display screens are easy to collide due to lack of protection setting of the electronic display screens.
(II) technical scheme
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: the utility model provides an electronic commerce teaching device, comprising a base plate, the joint has two bearings I in the bottom plate, and the lower extreme optical axis department that has cup jointed the screw rod in the bearing I, and screw rod surface threaded connection has the thread bush, and the screw rod lower extreme has cup jointed the sprocket, and two sprockets are connected through a chain drive, and the screw rod optical axis department on right side has cup jointed bevel gear I, and fixed surface is connected with bevel gear II on the bottom plate, and bevel gear II meshes with bevel gear I, and the equal fixedly connected with slide bar I of the bottom plate upper surface left and right sides, and a slide bar surface sliding connection has sliding sleeve I.
Preferably, the first sliding sleeve and the threaded sleeve are clamped in the first fixing plate, the upper surface of the first fixing plate is fixedly connected with the first supporting plate and the second supporting plate respectively, the back faces of the first supporting plate and the second supporting plate are fixedly connected with the second fixing plate, and the first sliding sleeve and the threaded sleeve are clamped in the second fixing plate.
Preferably, two slide rails of backup pad a left side fixedly connected with, and sliding connection blank in the slide rail, and the left side fixedly connected with pinion rack of blank, and two pinion racks all with gear engagement, and the gear cup joints at the pivot surface, and the pivot surface has cup jointed bearing two, and two joints of bearing are in backup pad two, and two output shaft fixed connection of pivot left end and motor, and two motor lead through motor seat and two fixed connection of backup pad.
Preferably, two T-shaped sliding grooves are formed in the second supporting plate, T-shaped sliding blocks are connected in the T-shaped sliding grooves in a sliding mode, and the T-shaped sliding blocks are fixedly connected with the left side of the toothed plate.
Preferably, the first fixing plate is fixedly connected with two first ear plates, the first ear plates are hinged to one end of the first connecting rod through a first pin shaft, the other end of the first connecting rod is hinged to one end of the second connecting rod through a second pin shaft, the other end of the second connecting rod is hinged to the fourth ear plate through a third pin shaft, and the fourth ear plates are fixedly connected with the bottom of the display screen.
Preferably, the upper end of the first sliding rod is fixedly connected with a third lug plate, the upper surfaces of the second supporting plate and the first supporting plate are fixedly connected with a second lug plate, the third lug plate is hinged to one end of the second sliding rod through a fourth pin shaft, the outer surface of the sliding rod is slidably connected with a second sliding sleeve, and the second sliding sleeve is hinged to the second lug plate through a fifth pin shaft.
Preferably, one end of the second sliding rod is fixedly connected with one end of the rope, the other end of the rope is fixedly connected with the upper side of the display screen, and the four corners of the bottom plate are fixedly connected with universal wheels.
Preferably, the upper surface of the bottom plate is fixedly connected with a control switch and a storage battery respectively, the output end of the storage battery is electrically connected with the access end of the control switch through a lead, and the output end of the control switch is electrically connected with the access ends of the first motor, the second motor and the display screen through leads respectively.
A method for using an electronic commerce teaching device comprises the following steps:
s1, when the device needs to be used, the device is moved to a designated position, then the motor drives the bevel gear II to rotate through the control switch, the bevel gear II can drive the screw rod on the right side to rotate through matching with the bevel gear I, the screw rod on the right side can drive the screw rod on the left side to rotate through matching with the two chain wheels and the chain, and therefore the two screw rods can be linked;
s2, the screw rod can drive the first fixing plate to move upwards through the matching of the first sliding rod, the first sliding sleeve and the threaded sleeve, and the first fixing plate can drive the white board to move upwards, so that the height of the white board is increased, and students can better watch teaching contents written by a teacher on the white board;
s3, the first supporting plate, the second supporting plate and the second ear plates can be driven to move upwards through the first fixing plate, the second ear plates can drive the display screen to move upwards through the matching of the second ear plates, the second sliding rods, the third ear plates and the ropes, so that the display screen can be prevented from being shielded by the white board on the upper side, the display screen is connected with an external computer, and more contents can be presented to people through the display screen;
s4, make two drive pivots of motor and gear rotate through control switch, the gear can drive the blank downstream of upside through the cooperation with pinion rack, slide rail, T type spout and T type slider, and the blank rebound of downside to the teacher of being convenient for writes on the blank that is originally in the eminence.
(III) advantageous effects
The invention has the beneficial effects that:
1. this electronic commerce teaching device, drive bevel gear two through the motor and rotate, bevel gear two is through the cooperation with bevel gear one, can drive the screw rod on right side and rotate, the screw rod on right side can drive left screw rod through the cooperation with two sprocket and chain and rotate, the screw rod is through with slide bar one, the cooperation of sliding sleeve one and thread bush can drive fixed plate one and upwards remove, can drive the blank rebound through fixed plate one, thereby promote the height of blank, so that students can be better watch the teaching content that the instructor wrote on the blank, if make a motor antiport, alright make blank rebound, thereby can reduce the shared space of the device, so that deposit.
2. This electronic commerce teaching device drives pivot and gear through two motors and rotates, and the gear can drive the blank downstream of upside through the cooperation with pinion rack, slide rail, T type spout and T type slider, and the blank rebound of downside to the teacher of being convenient for writes on the blank that is originally in the eminence, and then has improved the utilization ratio of blank.
3. This electronic commerce teaching device can drive backup pad one through fixed plate one, backup pad two and two otic placodes two upwards remove, otic placode two through with slide bar two, the cooperation of otic placode three and rope, can drive the display screen rebound, be connected the display screen with outside computer to accessible display screen demonstrates more content to everybody, when the display screen descends, the display screen will be in between two whiteboards, can provide the protection to the display screen through two whiteboards.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic top view of the base plate of the present invention;
FIG. 3 is a schematic view of a front view of a display screen according to the present invention;
FIG. 4 is an enlarged schematic top view of the support plate according to the present invention.
In the figure: the device comprises a base plate 1, universal wheels 2, a chain 3, a screw rod 4, a chain wheel 5, a bevel gear I6, a bevel gear II 7, a motor I8, a slide rod I9, a fixed plate I10, a slide sleeve I11, a thread sleeve 12, a fixed plate II 13, a screw rod 14, a control switch 15, a storage battery 16, a lug plate I17, a connecting rod I18, a connecting rod II 19, a white board 20, a display screen 21, a slide rod II 22, a rope 23, a slide sleeve II 24, a lug plate II 25, a lug plate III 26, a support plate I27, a slide rail 28, a motor II 29, a motor base 30, a sliding block 31T, a rotating shaft 32, a toothed plate 33, a support plate II 34, a lug plate.
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.
As shown in fig. 1 to 4, the present invention provides a technical solution: an electronic commerce teaching device comprises a bottom plate 1, wherein two first bearings are clamped in the bottom plate 1, optical axes of lower ends of screw rods 4 are sleeved in the first bearings, thread sleeves 12 are connected to outer surfaces of the screw rods 4 in a threaded manner, chain wheels 5 are sleeved at lower ends of the screw rods 4, the two chain wheels 5 are in transmission connection through a chain 3, the screw rod 14 on the right side can drive the screw rod 14 on the left side to rotate through cooperation with the two chain wheels 5 and the chain 3, so that the two screw rods 14 can be linked, a first bevel gear 6 is sleeved at the optical axis of the screw rod 14 on the right side, a second bevel gear 7 is fixedly connected to the upper surface of the bottom plate 1, the second bevel gear 7 is driven to rotate through a motor 8, the second bevel gear 7 can drive the screw rod 14 on the right side to rotate through cooperation with the first bevel gear 6, the second bevel gear 7 is meshed with the first bevel gear 6, and the outer surface sliding connection of slide bar 9 has sliding sleeve 11, can restrict sliding sleeve 11 through setting up slide bar 9, thereby make sliding sleeve 11 have stability at the removal in-process, sliding sleeve 11 and the equal joint of thread bush 12 are in fixed plate 10, and fixed plate 10 upper surface difference fixedly connected with backup pad 27 and backup pad two 34, and the equal fixedly connected with fixed plate two 13 in the back of looks of backup pad 27 and backup pad two 34, and the joint has sliding sleeve 11 and thread bush 12 in fixed plate two 13, screw 14 is through with slide bar 9, the cooperation of sliding sleeve 11 and thread bush 12 can drive fixed plate 10 and move upwards.
The left side of the first support plate 27 is fixedly connected with the two slide rails 28, the whiteboard 20 is slidably connected with the slide rails 28, the whiteboard 20 can be limited by arranging the slide rails 28, so that the whiteboard 20 has stability in the moving process, the left side of the whiteboard 20 is fixedly connected with the toothed plates 33, the two toothed plates 33 are both meshed with the gear 36, the gear 36 is sleeved on the outer surface of the rotating shaft 32, the outer surface of the rotating shaft 32 is sleeved with the second bearing, the second bearing is clamped in the second support plate 34, the left end of the rotating shaft 32 is fixedly connected with the output shaft of the second motor 29, the rotating shaft 32 and the gear 36 are driven to rotate by the second motor 29, the gear 36 can drive the whiteboard 20 on the lower side of the upper side to move downwards through the cooperation of the toothed plates 33, the slide rails 28, the T-shaped sliding grooves and the T-shaped sliding blocks, and the whiteboard 20 moves upwards, so that a teacher can write on the whiteboard 33 originally located at a, two T-shaped sliding grooves are formed in the second support plate 34, T-shaped sliding blocks 31 are connected in the T-shaped sliding grooves in a sliding mode, the T-shaped sliding blocks 31 are fixedly connected with the left side of the toothed plate 33, the T-shaped sliding blocks 31 can be limited by the T-shaped sliding grooves, and therefore the T-shaped sliding blocks 31 have stability in the moving process, two first ear plates 17 are fixedly connected to the upper surface of the first fixed plate 10, the first ear plates 17 are hinged to one end of the first connecting rod 18 through first pin shafts, the other end of the first connecting rod 18 is hinged to one end of the second connecting rod 19 through second pin shafts, the other end of the second connecting rod 19 is hinged to the fourth ear plates 35 through third pin shafts, the fourth ear plates 35 are fixedly connected with the bottom of the display screen 21, the display screen 21 can be limited through the matching of the first connecting rod 18, the second connecting rod 19, the first ear plates 17 and the fourth ear plates 35, and, the upper end of the first sliding rod 9 is fixedly connected with a third ear plate 26, the upper surfaces of the support plate two 34 and the support plate 27 are fixedly connected with a second ear plate 25, the third ear plate 26 is hinged with one end of the second sliding rod 22 through a fourth pin shaft, the outer surface of the second sliding rod 22 is connected with a second sliding sleeve 24 in a sliding manner, the second sliding sleeve 24 is hinged with the second ear plate 25 through a fifth pin shaft, the second ear plate 25 is matched with the second sliding rod 22, the third ear plate 26 and the rope 23 to drive the display screen 21 to move upwards, so that the display screen 21 is prevented from being shielded by the upper side white plate 20, the display screen 21 is connected with an external computer, so that more contents can be presented to people through the display screen 21, one end of the second sliding rod 22 is fixedly connected with one end of the rope 23, the other end of the rope 23 is fixedly connected with the upper side of the display screen 21, four corners at the bottom of the bottom plate 1 are fixedly, and the output end of the storage battery 16 is electrically connected with the access end of the control switch 15 through a conducting wire, and the output end of the control switch 15 is electrically connected with the access ends of the first motor 8, the second motor 29 and the display screen 21 through conducting wires respectively.
The method comprises the following operation steps:
s1, when the device needs to be used, the device is moved to a designated position, then the motor I8 drives the bevel gear II 7 to rotate through the control switch 15, the bevel gear II 7 can drive the screw 14 on the right side to rotate through the matching with the bevel gear I6, the screw 14 on the right side can drive the screw 14 on the left side to rotate through the matching with the two chain wheels 5 and the chain 3, and therefore the two screws 14 can be linked;
s2, the screw 14 can drive the first fixing plate 10 to move upwards through the matching of the first sliding rod 9, the first sliding sleeve 11 and the threaded sleeve 12, and the first fixing plate 10 can drive the whiteboard 20 to move upwards, so that the height of the whiteboard 20 is increased, and students can better watch teaching contents written by the instructor on the whiteboard 20;
s3, the first fixing plate 10 can drive the first supporting plate 27, the second supporting plate 34 and the second ear plates 25 to move upwards, the second ear plates 25 can drive the display screen 21 to move upwards through matching with the second sliding rods 22, the third ear plates 26 and the rope 23, so that the display screen 21 can be prevented from being shielded by the white board 20 on the upper side, the display screen 21 is connected with an external computer, and more contents can be presented to people through the display screen 21;
s4, the second motor 29 drives the rotating shaft 32 and the gear 36 to rotate through the control switch 15, the gear 36 can drive the whiteboard 20 on the upper side to move downwards through the matching of the toothed plate 33, the sliding rail 28, the T-shaped sliding groove and the T-shaped sliding block, and the whiteboard 20 on the lower side moves upwards, so that the instructor can write on the whiteboard 33 which is originally located at a high position conveniently.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only illustrative of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides an electronic commerce teaching device, includes bottom plate (1), its characterized in that: bottom plate (1) inside callipers has two bearings one, and the lower extreme optical axis department that has cup jointed screw rod (4) in the bearing one, and screw rod (4) surface threaded connection has thread bush (12), and screw rod (4) lower extreme has cup jointed sprocket (5), and two sprocket (5) are connected through a chain (3) transmission, and screw rod (14) optical axis department on right side has cup jointed bevel gear one (6), and fixed surface is connected with bevel gear two (7) on bottom plate (1), and bevel gear two (7) and bevel gear one (6) meshing, and the equal fixedly connected with slide bar one (9) of bottom plate (1) upper surface left and right sides, and slide bar one (9) surface sliding connection has sliding sleeve one (11).
2. The device for teaching electronic commerce according to claim 1, wherein: the first sliding sleeve (11) and the threaded sleeve (12) are clamped in the first fixing plate (10), the upper surface of the first fixing plate (10) is fixedly connected with a first supporting plate (27) and a second supporting plate (34) respectively, the back of the first supporting plate (27) and the second supporting plate (34) is fixedly connected with a second fixing plate (13), and the first sliding sleeve (11) and the threaded sleeve (12) are clamped in the second fixing plate (13).
3. An electronic commerce instruction device as claimed in claim 2, wherein: two slide rails (28) of backup pad (27) left side fixedly connected with, and slide rail (28) sliding connection blank (20), and the left side fixedly connected with pinion rack (33) of blank (20), and two pinion racks (33) all mesh with gear (36), and gear (36) cup joint in pivot (32) surface, and pivot (32) surface has cup jointed bearing two, and the joint of bearing two is in backup pad two (34), and pivot (32) left end and two (29) output shaft fixed connection of motor, and motor two (29) are through motor cabinet (30) and two (34) fixed connection of backup pad.
4. An electronic commerce instruction device as claimed in claim 2, wherein: two T-shaped sliding grooves are formed in the second supporting plate (34), T-shaped sliding blocks (31) are connected in the T-shaped sliding grooves in a sliding mode, and the T-shaped sliding blocks (31) are fixedly connected with the left side of the toothed plate (33).
5. An electronic commerce instruction device as claimed in claim 2, wherein: fixed surface is connected with two otic placodes one (17) on fixed plate one (10), and otic placode one (17) is articulated through the one end of round pin axle one and connecting rod one (18), and the other end of connecting rod one (18) is articulated through the one end of round pin axle two with connecting rod two (19), and the other end of connecting rod two (19) is articulated through round pin axle three and otic placode four (35), and otic placode four (35) and display screen (21) bottom fixed connection.
6. The device for teaching electronic commerce according to claim 1, wherein: the upper end fixedly connected with otic placode three (26) of slide bar (9), and the equal fixedly connected with otic placode two (25) of upper surface of backup pad two (34) and backup pad one (27), and otic placode three (26) is articulated through the one end of round pin axle four with slide bar two (22), and slide bar two (22) surface sliding connection has sliding sleeve two (24), and sliding sleeve two (24) are articulated through round pin axle five with otic placode two (25).
7. The device for teaching electronic commerce according to claim 6, wherein: one end of the second sliding rod (22) is fixedly connected with one end of the rope (23), the other end of the rope (23) is fixedly connected with the upper side of the display screen (21), and the four corners of the bottom plate (1) are fixedly connected with universal wheels (2).
8. The device for teaching electronic commerce according to claim 1, wherein: the upper surface of the bottom plate (1) is fixedly connected with a control switch (15) and a storage battery (16) respectively, the output end of the storage battery (16) is electrically connected with the access end of the control switch (15) through a wire, and the output end of the control switch (15) is electrically connected with the access ends of a first motor (8), a second motor (29) and a display screen (21) through wires respectively.
9. A method for using an electronic commerce teaching device comprises the following steps:
s1, when the device needs to be used, the device is moved to a designated position, then a first motor (8) drives a second bevel gear (7) to rotate through a control switch (15), the second bevel gear (7) can drive a right screw (14) to rotate through matching with a first bevel gear (6), and the right screw (14) can drive a left screw (14) to rotate through matching with two chain wheels (5) and a chain (3), so that the two screws (14) are linked;
s2, the screw (14) is matched with the sliding rod I (9), the sliding sleeve I (11) and the threaded sleeve (12) to drive the fixing plate I (10) to move upwards, and the fixing plate I (10) can drive the white board (20) to move upwards, so that the height of the white board (20) is increased, and students can better watch teaching contents written by a teacher on the white board (20);
s3, the first supporting plate (27), the second supporting plate (34) and the second ear plates (25) can be driven to move upwards through the first fixing plate (10), the second ear plates (25) can drive the display screen (21) to move upwards through the cooperation with the second sliding rod (22), the third ear plates (26) and the rope (23), so that the display screen (21) can be prevented from being shielded by the white board (20) on the upper side, the display screen (21) is connected with an external computer, and more contents can be presented to people through the display screen (21);
s4, the second motor (29) drives the rotating shaft (32) and the gear (36) to rotate through the control switch (15), the gear (36) can drive the whiteboard (20) on the upper side to move downwards through the matching of the toothed plate (33), the sliding rail (28), the T-shaped sliding groove and the T-shaped sliding block, and the whiteboard (20) on the lower side moves upwards, so that a teacher can write on the whiteboard (33) originally located at a high position conveniently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110251940.8A CN112967536A (en) | 2021-03-08 | 2021-03-08 | Electronic commerce teaching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110251940.8A CN112967536A (en) | 2021-03-08 | 2021-03-08 | Electronic commerce teaching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112967536A true CN112967536A (en) | 2021-06-15 |
Family
ID=76276939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110251940.8A Pending CN112967536A (en) | 2021-03-08 | 2021-03-08 | Electronic commerce teaching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112967536A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5203706A (en) * | 1992-01-21 | 1993-04-20 | Amos Zamir | Educational device |
| US20090004632A1 (en) * | 2005-02-28 | 2009-01-01 | Shenzhen Wang Ling Science And Technology Development Co., Ltd. | Braille Writing Apparatus With Information Processing Function |
| CN206584600U (en) * | 2017-03-13 | 2017-10-24 | 刘昉 | A kind of video display tutor auxiliary platform teaching aid |
| CN210851796U (en) * | 2019-08-27 | 2020-06-26 | 冉贵琴 | Ideological and political theory teaching presentation device |
| CN211237400U (en) * | 2020-03-03 | 2020-08-11 | 商丘师范学院 | A display device for college english teaching |
| CN211349792U (en) * | 2020-03-05 | 2020-08-25 | 湖北理工学院 | Novel training board is read to portable english |
| CN211827783U (en) * | 2020-04-30 | 2020-10-30 | 南阳理工学院 | Economics teaching is with folding blackboard |
-
2021
- 2021-03-08 CN CN202110251940.8A patent/CN112967536A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5203706A (en) * | 1992-01-21 | 1993-04-20 | Amos Zamir | Educational device |
| US20090004632A1 (en) * | 2005-02-28 | 2009-01-01 | Shenzhen Wang Ling Science And Technology Development Co., Ltd. | Braille Writing Apparatus With Information Processing Function |
| CN206584600U (en) * | 2017-03-13 | 2017-10-24 | 刘昉 | A kind of video display tutor auxiliary platform teaching aid |
| CN210851796U (en) * | 2019-08-27 | 2020-06-26 | 冉贵琴 | Ideological and political theory teaching presentation device |
| CN211237400U (en) * | 2020-03-03 | 2020-08-11 | 商丘师范学院 | A display device for college english teaching |
| CN211349792U (en) * | 2020-03-05 | 2020-08-25 | 湖北理工学院 | Novel training board is read to portable english |
| CN211827783U (en) * | 2020-04-30 | 2020-10-30 | 南阳理工学院 | Economics teaching is with folding blackboard |
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Application publication date: 20210615 |
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