CN108515791B - English and American literature teaching is with contrast learning device - Google Patents
English and American literature teaching is with contrast learning device Download PDFInfo
- Publication number
- CN108515791B CN108515791B CN201810343812.4A CN201810343812A CN108515791B CN 108515791 B CN108515791 B CN 108515791B CN 201810343812 A CN201810343812 A CN 201810343812A CN 108515791 B CN108515791 B CN 108515791B
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- China
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- box body
- power box
- rotating shaft
- supporting column
- transmission
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- Expired - Fee Related
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- 230000001360 synchronised effect Effects 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims description 59
- 238000004891 communication Methods 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 4
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 3
- 238000006243 chemical reaction Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
-
- 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
- G09B5/06—Electrically-operated educational appliances with both visual and audible presentation of the material to be studied
Abstract
The invention relates to a comparison learning device for English and American literature teaching, which comprises a power box body, wherein a first synchronous driving device is arranged in the power box body, and writing display box bodies are arranged at the upper parts of two output shafts of the first synchronous driving device; the output shaft penetrates out of the writing display box body and then is connected with the transverse plate through a fourth ball bearing at the top end of the writing display box body, the transverse plate is erected at the top ends of the first supporting column and the second supporting column which are arranged on the left and right, the lower ends of the first supporting column and the second supporting column are fixed to the upper surface of the power box body, a second synchronous driving device is further arranged in the power box body and connected with the marking device, and the lower end of the marking device is further provided with a screen wiping device. The invention facilitates comparison teaching, enlarges the display space, occupies small area, can be stored and carried when not in use, is convenient to move and operate, is convenient to use and has strong practicability.
Description
Technical Field
The invention belongs to the technical field of teaching aids, and particularly relates to a comparison learning device for English and American literature teaching.
Background
In china, the in-process of the actual teaching and the study of the english-american literature specialty, the teacher generally need carry out the analysis explanation with literary works to the native language of translation student contrasts the teaching, in the teaching in-process, the teaching contrast is essential link, but under the normal conditions, in case when the content of contrast teaching is many, the student wants to find contrast content just very dazzling fast accurate on the clipboard, moreover, current contrast teaching device function singleness, area is big, do not transport and remove well.
Disclosure of Invention
In view of this, the invention provides a contrast learning device for English and American literature teaching, so as to solve the defects in the prior art.
The technical scheme of the invention is as follows: a contrast learning device for English and American literature teaching comprises a power box body, wherein a first synchronous driving device is arranged in the power box body, and writing display box bodies are arranged at the upper parts of two output shafts of the first synchronous driving device; the output shaft is worn out to write and is connected with the diaphragm on its top behind the show box, the first support column and the second support column top of arranging on a left side, the right side are established to the diaphragm frame, the lower extreme of first support column and second support column and the last fixed surface of power box, still be provided with the synchronous drive device of second in the power box, the synchronous drive device of second is connected with the device of marking, the lower extreme of marking the device still disposes and wipes the screen device.
Preferably, the first synchronous driving device comprises a first motor, an output shaft of the first motor is connected with a first rotating shaft through a first coupler, the first rotating shaft penetrates through a supporting seat, the tail end of the first rotating shaft is connected with the side wall of the power box body through a first ball bearing, the supporting seat is fixed with the bottom surface of the power box body, a second ball bearing is arranged in the supporting seat and is connected with the first rotating shaft in a sliding manner, first transmission pieces which are sleeved and fixed on the first rotating shaft are respectively arranged between the first motor and the supporting seat and between the supporting seat and the side wall of the power box body far away from the first motor, the first transmission pieces are in transmission connection with second transmission pieces, the first transmission pieces are vertical to the central axis of the second transmission pieces, the second transmission pieces are arranged at the lower end of the second rotating shaft, and the second rotating shaft is clamped on a first mounting plate fixedly connected with the two side walls of, and the second rotating shaft is provided with a third transmission part at the upper end thereof after penetrating through the first mounting plate, the third transmission part is in transmission connection with a fourth transmission part, the fourth transmission part is fixed on the output shaft, the lower end of the output shaft is connected with the first concave table through a third ball bearing, the first concave table is fixed with the first mounting plate, and the upper part of the output shaft is fixedly connected with the writing display box body after extending out of the power box body.
Preferably, bevel gear transmission is adopted between the first transmission piece and the second transmission piece, and intermittent transmission is adopted between the third transmission piece and the fourth transmission piece.
Preferably, the writing and displaying box body is a polyhedron, and each side surface of the writing and displaying box body and the writing board are magnetic white boards.
Preferably, the second synchronous drive means comprises a second electric motor fixed to the first mounting plate, the output shaft of the second motor is connected with the lower end of the first ball screw through a second coupling, the upper end of the first ball screw extends out of the power box and then penetrates through the first support column, the lower end of the first ball screw is sleeved and fixed with a first belt wheel, the first belt wheel is connected with a second belt wheel through a conveyor belt, the second belt wheel is sleeved and fixed at the lower end of a second ball screw, the upper end of the second ball screw extends out of the power box and then penetrates through the inside of the second supporting column, the lower end of the second ball screw is connected with a second concave platform through a fifth ball bearing, the second concave platform is fixed with a second mounting plate, the second mounting plate is fixed with the side wall of the power box body, and the first ball screw and the second ball screw are respectively connected with the sliding block in a sliding mode.
Preferably, the marking device comprises a fixing block arranged on the upper surface of the sliding block, the fixing block penetrates through the slots formed in the first supporting column and the second supporting column respectively and extends to the outside of the first supporting column and the second supporting column, clamping grooves are formed in the opposite side faces of the two fixing blocks, and detachable identification strips are clamped in the clamping grooves.
Preferably, the screen wiping device comprises a screen wiper sleeved on the identification strip, and adhesive tapes are arranged on two side edges of the screen wiper.
Preferably, still be provided with the supporter on first support column and the second support column respectively, be provided with the install bin of the face of can rotating on the supporter, be provided with touch display screen on the install bin, touch display screen's the back is provided with the clipboard, touch display screen is connected with power supply and treater electricity respectively, wireless communication module is connected to the treater electricity, the front of diaphragm is provided with the megaphone, the megaphone is connected with power supply and treater electricity respectively, power box upper surface still clamps detachable teaching aid and stores the groove, the teaching aid store the groove and be provided with the capping of taking the buckle.
Preferably, the supporter includes two horizontal support columns of upper and lower parallel arrangement, be provided with the third pivot on the face that two support columns are relative respectively, the one end and the install bin of third pivot are fixed, and the other end passes through sixth ball bearing and is connected with the support column, be provided with at least one couple on the support column.
Preferably, the bottom surface of the power box body is provided with a supporting leg with adjustable height, and the lower part of the supporting leg is provided with a universal wheel with a locking mechanism.
The invention provides a contrast learning device for English and American literature teaching, which utilizes a marking device capable of moving up and down to mark an explained contrast content part, so that students can quickly and accurately find the content of contrast learning on a writing board.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Description of reference numerals:
1. supporting legs; 2. a power box body; 3. a first mounting plate; 4. a second motor; 5. a first pulley; 6. a conveyor belt; 7. a support pillar; 8. hooking; 9. a third rotating shaft; 10. a touch display screen; 11. a first support column; 12. a first ball screw; 13. a transverse plate; 14. a first rotating shaft; 15. a marking strip; 16. a fixed block; 17. a writing board; 18. a second recessed land; 19. a second mounting plate; 20. an output shaft; 21. a fourth transmission member; 22. a first recessed land; 23. a first motor; 24. a second rotating shaft; 25. a third transmission member; 26. a supporting seat; 27. a second transmission member; 28. a first transmission member; 29. a second support column; 30. a second ball screw; 31. a second pulley.
Detailed Description
The invention provides a comparison learning device for English and American literature teaching, which is described below by combining the structural schematic diagram of figure 1.
As shown in fig. 1, the cross-reference learning device for english and american literature teaching provided by the present invention comprises a power box 2, wherein a first synchronous driving device is arranged in the power box 2, and a writing display box is arranged on the upper part of two output shafts 20 of the first synchronous driving device; output shaft 20 wears out to be connected with diaphragm 13 through fourth ball bearing on its top after writing the show box, diaphragm 13 erects on the first support column 11 and the 29 tops of second support column that left and right arranged, the lower extreme of first support column 11 and second support column 29 and the last fixed surface of power box 2, still be provided with second synchronous drive device in the power box 2, second synchronous drive device is connected with the device of marking, the lower extreme of marking the device still disposes and wipes the screen device.
Further, the first synchronous driving device comprises a first motor 23, an output shaft of the first motor 23 is connected with a first rotating shaft 14 through a first coupling, the first rotating shaft 14 penetrates through a supporting seat 26, the tail end of the first rotating shaft is connected with the side wall of the power box body 2 through a first ball bearing, the supporting seat 26 is fixed with the bottom surface of the power box body 2, a second ball bearing is arranged in the supporting seat 26 and is slidably connected with the first rotating shaft 14, a first transmission piece 28 sleeved and fixed on the first rotating shaft 14 is respectively arranged between the first motor 23 and the supporting seat 26 and between the supporting seat 26 and the side wall of the power box body 2 far away from the first motor 23, the first transmission piece 28 is in transmission connection with a second transmission piece 27, the first transmission piece 28 is vertical to the central axis of the second transmission piece 27, the second transmission piece 27 is arranged at the lower end of the second rotating shaft 24, the second rotating shaft 24 is clamped on the first mounting plate 3 fixedly connected with two side walls of the power box body 2, a third transmission piece 25 is arranged at the upper end of the second rotating shaft 24 after penetrating through the first mounting plate 3, the third transmission piece 25 is in transmission connection with the fourth transmission piece 21, the fourth transmission piece 21 is fixed on the output shaft 20, the lower end of the output shaft 20 is connected with the first concave table 22 through a third ball bearing, the first concave table 22 is fixed with the first mounting plate 3, and the upper portion of the output shaft 20 extends out of the power box body 2 and then is fixedly connected with the writing display box body.
Further, the first transmission member 28 and the second transmission member 27 are in bevel gear transmission, and the third transmission member 25 and the fourth transmission member 21 are in intermittent transmission.
Further, write the show box and be the polyhedron, write each side of show box and clipboard 17 and be the blank of taking magnetism to convenient explanation and writing, can also explain with magnetic buckle pasting show picture, help deepening the student to the understanding of courseware content.
Further, the second synchronous driving device comprises a second motor 4 fixed on the first mounting plate 3, an output shaft of the second motor 4 is connected with a lower end of a first ball screw 12 through a second coupler, an upper end of the first ball screw 12 extends out of the power box 2 and then penetrates through the first support column 11, a lower end of the first ball screw 12 is fixedly sleeved with a first belt wheel 5, the first belt wheel 5 is connected with a second belt wheel 31 through a conveyor belt 6, the second belt wheel 31 is fixedly sleeved with a lower end of a second ball screw 30, an upper end of the second ball screw 30 extends out of the power box 2 and then penetrates through the second support column 29, a lower end of the second ball screw 30 is connected with a second concave table 18 through a fifth ball bearing, the second concave table 18 is fixed with a second mounting plate 19, and the second mounting plate 19 is fixed with a side wall of the power box 2, the first ball screw 12 and the second ball screw 30 are slidably connected to the slider respectively.
Furthermore, the marking device comprises a fixing block 16 arranged on the upper surface of the sliding block, the fixing block 16 respectively penetrates through the slots formed in the first supporting column 11 and the second supporting column 29 and extends to the outside of the first supporting column 11 and the second supporting column 29, clamping grooves are formed in the opposite side surfaces of the two fixing blocks 16, and detachable marking strips 15 are clamped in the clamping grooves.
Furthermore, the screen wiping device comprises a screen wiper sleeved on the identification strip 15, and adhesive tapes are arranged on two side edges of the screen wiper.
Further, still be provided with the supporter on first support column 11 and the second support column 29 respectively, be provided with the install bin of the face that can rotate on the supporter, be provided with touch display screen 10 on the install bin, touch display screen 10's the back is provided with clipboard 17, touch display screen 10 is connected with power supply and treater electricity respectively, wireless communication module is connected to the treater electricity, the preceding of diaphragm 13 is provided with the megaphone, the megaphone is connected with power supply and treater electricity respectively, power box 2 upper surface still clamps detachable teaching aid and stores the groove, the teaching aid store and be provided with the capping of taking the buckle on the groove.
Further, the supporter includes two horizontal support columns 7 of upper and lower parallel arrangement, be provided with third pivot 9 on the face that two support columns 7 are relative respectively, the one end and the install bin of third pivot 9 are fixed, and the other end passes through sixth ball bearing and is connected with support column 7, be provided with at least one couple 8 on the support column 7.
Furthermore, the bottom surface of the power box body 2 is provided with a supporting leg 1 with adjustable height, and the lower part of the supporting leg 1 is provided with a universal wheel with a locking mechanism.
Wherein, the screen is wiped and can be accomplished accomodating of pen dust, perhaps dips in water and accomplishes comprehensive washing, and when not using, open the sticky tape, it can to take off the screen.
Wherein, the side of pushing the install bin rotates 180 degrees, can make touch display screen and clipboard accomplish the face of trading.
The intermittent transmission is preferably a grooved pulley mechanism, the number N of grooves of the grooved pulley is consistent with the number of the side faces of the writing and displaying box body, so that the driving part rotates one circle every time, the driven part rotates 1/N of the circle, and the fact that one side face of the writing and displaying box body is changed every time for teaching can be guaranteed.
The invention provides a contrast learning device for English and American literature teaching, which is used for determining the number of used board bodies according to the number of contents to be written and displayed when in use, and meanwhile, the device can acquire education resources by means of a wireless communication module, display the acquired education resources by using a touch display screen, and amplify the volume by using a loudspeaker so as to be convenient for students at a distance to clearly listen to the education resources. Carry out during the english and american literature contrast teaching, can write the side of show box body and write the english and american literature text at one of them, another writes the contrast text that the translation was passed on the corresponding side of show box body, control second synchronous drive device's second motor action, the second motor drives ball through the belt drive and rotates, can make slider on the ball take place to remove, thereby it reciprocates to need the contrast content department of demarcation to drive the sign strip and teaches, make things convenient for the student to find the content of carrying out the explanation at present in numerous contents, the learning efficiency is improved, when not using marking device, can take out in the draw-in groove with the instruction strip and accomodate. The user can also utilize the universal wheel to change the front side and the back side or move the position of the device, and at the moment, the invention has small occupied area and is convenient to carry and move.
The invention provides a contrast learning device for English and American literature teaching, which utilizes a marking device capable of moving up and down to mark an explained contrast content part, so that students can quickly and accurately find the content of contrast learning on a writing board.
The above disclosure is only for the preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (7)
1. A contrast learning device for English and American literature teaching comprises a power box body (2), and is characterized in that a first synchronous driving device is arranged in the power box body (2), and writing display box bodies are arranged at the upper parts of two output shafts (20) of the first synchronous driving device; the output shaft (20) penetrates through the writing and displaying box body and is connected with a transverse plate (13) at the top end of the writing and displaying box body through a fourth ball bearing, the transverse plate (13) is erected at the top ends of a first supporting column (11) and a second supporting column (29) which are arranged on the left and right, the lower ends of the first supporting column (11) and the second supporting column (29) are fixed with the upper surface of the power box body (2), a second synchronous driving device is further arranged in the power box body (2) and is connected with a marking device, and a screen wiping device is further arranged at the lower end of the marking device;
the second synchronous driving device comprises a second motor (4) fixed on the first mounting plate (3), an output shaft of the second motor (4) is connected with the lower end of a first ball screw (12) through a second coupler, the upper end of the first ball screw (12) extends out of the power box body (2) and then penetrates through a first supporting column (11), the lower end of the first ball screw (12) is fixedly sleeved with a first belt wheel (5), the first belt wheel (5) is connected with a second belt wheel (31) through a conveying belt (6), the second belt wheel (31) is fixedly sleeved with the lower end of a second ball screw (30), the upper end of the second ball screw (30) extends out of the power box body (2) and then penetrates through the inside of a second supporting column (29), and the lower end of the second ball screw (30) is connected with a second concave table (18) through a fifth ball bearing, the second concave table (18) is fixed with a second mounting plate (19), the second mounting plate (19) is fixed with the side wall of the power box body (2), and the first ball screw (12) and the second ball screw (30) are respectively connected with a sliding block in a sliding mode;
the marking device comprises fixed blocks (16) arranged on the upper surface of the sliding block, the fixed blocks (16) respectively penetrate through the slots formed in the first supporting column (11) and the second supporting column (29) and extend out of the first supporting column (11) and the second supporting column (29), clamping grooves are formed in the opposite side surfaces of the two fixed blocks (16), and detachable identification strips (15) are clamped in the clamping grooves;
the screen wiping device comprises a screen wiper sleeved on the identification strip (15), and adhesive tapes are arranged on two side edges of the screen wiper.
2. The cross-reference learning device for English and American literature teaching according to claim 1, wherein the first synchronous driving device comprises a first motor (23), the output shaft of the first motor (23) is connected with a first rotating shaft (14) through a first coupling, the first rotating shaft (14) passes through a supporting seat (26), the tail end of the first rotating shaft is connected with the side wall of the power box body (2) through a first ball bearing, the supporting seat (26) is fixed with the bottom surface of the power box body (2), a second ball bearing is arranged in the supporting seat (26), the second ball bearing is connected with the first rotating shaft (14) in a sliding manner, first transmission members (28) which are sleeved and fixed on the first rotating shaft (14) are respectively arranged between the first motor (23) and the supporting seat (26) and between the supporting seat (26) and the side wall of the power box body (2) far away from the first motor (23), the first transmission piece (28) is in transmission connection with the second transmission piece (27), the central axis of the first transmission piece (28) is vertical to that of the second transmission piece (27), the second transmission piece (27) is arranged at the lower end of the second rotating shaft (24), the second rotating shaft (24) is clamped on the first mounting plate (3) fixedly connected with the two side walls of the power box body (2), and a third transmission piece (25) is arranged at the upper end of the second rotating shaft (24) after passing through the first mounting plate (3), the third transmission piece (25) is in transmission connection with a fourth transmission piece (21), the fourth transmission piece (21) is fixed on the output shaft (20), the lower end of the output shaft (20) is connected with the first concave platform (22) through a third ball bearing, first concave station (22) are fixed with first mounting panel (3), the upper portion of output shaft (20) extends to power box (2) outer back and links firmly with the demonstration box of writing.
3. The cross-reference learning device for English-American literature teaching according to claim 2, wherein the first transmission member (28) and the second transmission member (27) are in bevel gear transmission, and the third transmission member (25) and the fourth transmission member (21) are in intermittent transmission.
4. The cross-reference learning device for English-American literature teaching according to claim 1, wherein the writing and displaying box is a polyhedron, and each side of the writing and displaying box and the writing board (17) are magnetic white boards.
5. The cross-reference learning device for English, American and literature teaching according to claim 1, wherein the first support column (11) and the second support column (29) are respectively provided with a support body, the support body is provided with an installation box with a rotatable conversion surface, the installation box is provided with a touch display screen (10), the back surface of the touch display screen (10) is provided with a writing board (17), the touch display screen (10) is respectively electrically connected with a power supply and a processor, the processor is electrically connected with a wireless communication module, the front surface of the transverse plate (13) is provided with a loudspeaker, the loudspeaker is respectively electrically connected with the power supply and the processor, the upper surface of the power box body (2) is further provided with a detachable teaching aid storage groove in a clamping manner, and the teaching aid storage groove is provided with a groove cover with a clamping buckle.
6. The cross-reference learning device for English, American and literature teaching according to claim 5, wherein the support body comprises two transverse support columns (7) which are arranged in parallel up and down, the opposite surfaces of the two support columns (7) are respectively provided with a third rotating shaft (9), one end of the third rotating shaft (9) is fixed with the installation box, the other end of the third rotating shaft is connected with the support columns (7) through a sixth ball bearing, and the support columns (7) are provided with at least one hook (8).
7. The cross-reference learning device for English-American literature teaching according to claim 1, wherein the bottom surface of the power box body (2) is provided with a supporting leg (1) with adjustable height, and the lower part of the supporting leg (1) is provided with a universal wheel with a locking mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810343812.4A CN108515791B (en) | 2018-04-17 | 2018-04-17 | English and American literature teaching is with contrast learning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810343812.4A CN108515791B (en) | 2018-04-17 | 2018-04-17 | English and American literature teaching is with contrast learning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108515791A CN108515791A (en) | 2018-09-11 |
| CN108515791B true CN108515791B (en) | 2019-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810343812.4A Expired - Fee Related CN108515791B (en) | 2018-04-17 | 2018-04-17 | English and American literature teaching is with contrast learning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108515791B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448449A (en) * | 2018-12-11 | 2019-03-08 | 李青梅 | A kind of educational devices of teacher |
| CN112509424B (en) * | 2019-11-28 | 2022-10-25 | 莱芜职业技术学院 | Retractable university student's teaching contrast explanation device |
| CN111462535B (en) * | 2020-04-24 | 2021-07-16 | 洛阳理工学院 | Auxiliary device is used in english and american literature study |
| CN112976884B (en) * | 2021-04-07 | 2023-08-22 | 日照抚园办公用品有限公司 | Blackboard with bidirectional uninterrupted use function |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2354793A1 (en) * | 1976-06-14 | 1978-01-13 | Gresset Bernard | TOY AS PICTURE |
| CN201235691Y (en) * | 2008-06-27 | 2009-05-13 | 加那提别克·热夏特 | Electric blackboard eraser |
| CN203520649U (en) * | 2013-09-29 | 2014-04-02 | 梁霞 | English teaching aid making teaching conveniently |
| CN203864249U (en) * | 2014-01-23 | 2014-10-08 | 苏桂英 | Multifunctional automatic teaching device |
| CN203752741U (en) * | 2014-04-11 | 2014-08-06 | 徐漫琳 | Regular triangular prism-shaped turnover blackboard device |
| CN204451711U (en) * | 2015-02-18 | 2015-07-08 | 孙艺敏 | Board writing of Chinese language teaching exhibiting device |
| CN204759767U (en) * | 2015-07-14 | 2015-11-11 | 宿州学院 | Teaching aid for english words |
| CN206532427U (en) * | 2017-01-04 | 2017-09-29 | 唐山学院 | College English Lexical mnemonic device |
| CN206441403U (en) * | 2017-01-16 | 2017-08-25 | 黑河学院 | A kind of English glossary dictation device |
-
2018
- 2018-04-17 CN CN201810343812.4A patent/CN108515791B/en not_active Expired - Fee Related
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| CN108515791A (en) | 2018-09-11 |
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Granted publication date: 20191227 |