CN107696752B - A kind of interactive teaching instrument - Google Patents
A kind of interactive teaching instrument Download PDFInfo
- Publication number
- CN107696752B CN107696752B CN201711078280.8A CN201711078280A CN107696752B CN 107696752 B CN107696752 B CN 107696752B CN 201711078280 A CN201711078280 A CN 201711078280A CN 107696752 B CN107696752 B CN 107696752B
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Classifications
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- 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
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- Tables And Desks Characterized By Structural Shape (AREA)
Abstract
A kind of interactive teaching instrument,It is fixed to solve existing blackboard,The problem of cannot achieve the demand of student's study of heel row and side,It includes shell,Shell lower end is rotatably fixed in terminal pad,It is fixed with supporting table below terminal pad,Pedestal is equipped with below supporting table,Screw axis is rotatably equipped on pedestal,Link block is rotatably equipped in supporting table,Link block is threadedly coupled with screw axis,Shell is fixed with external toothing on the outside of lower end,Gear is engaged on the outside of external toothing,The upper end of screw axis passes through gear,Multiple small sircle holes are evenly distributed on gear,The position that supporting table corresponds to small sircle hole is equipped with corresponding aperture,Axis pin is fitted between small sircle hole and corresponding aperture,The rotation of shell upper end is equipped with upper cover plate,Fixing axle is equipped in shell,The lower end of fixing axle is fixedly connected across lower cover with terminal pad,Housing internal threads are connected with nut block,Rotation is equipped with slider disc in nut block,It is fixed with guide rod at nut block top edges,Guide rod upper end passes through upper cover plate.
Description
Technical field
The invention belongs to teaching equipment fields, more particularly to a kind of interactive teaching instrument.
Background technology
Blackboard is applied to plank from earliest with blacking, and the hard body surface such as cement arrives the ink glass of the nineties
Glass, color coated steel sheet, composite panel etc. have witnessed the development step by step of world's educational undertaking, have conveyed knowledge for the mankind, popularize religion
It educates, has made distinctions won on the battlefield.The type of existing blackboard also begins to become complicated various, is divided into blackboard in color, green plate, blank etc.,
It is divided into surface plate in shape from color, cambered plate is divided into holder movable plate from structure composition, draw back plate, and lifter plate is magnetic black
Plate is divided into blackboard for education from purposes, blank of handling official business, billboard, display board, and blackboard for education has electronic blackboard, multi-functional
Compoboard, combination push-and-pull blackboard, interactive electric whiteboard, band curtain projection plate etc..
In present teaching, teacher is frequently necessary to write classroom example in the enterprising andante book of blackboard and on blackboard, deepens
Memory and understanding of the student to class offerings, but present blackboard is all integrally fixed on metope, because of the height of distance and blackboard
It influences, the student of heel row often will appear the content not seen on Chu's blackboard, and the student of both sides is black because light problem does not see Chu
Content on plate, student do not see the content on Chu's blackboard, the mood disliked and be weary of studying will gradually occur, for a long time just
It will appear the problem of achievement gradually glides, teaching teacher can not realize that the interaction with student, teaching efficiency are not to manage very much well
Think.
Invention content
For the above situation, to overcome the deficiencies of existing technologies, the present invention provides a kind of interactive teaching instrument, effective solution
Existing blackboard is fixed, the problem of cannot achieve the demand of student's study of heel row and side.
Its technical solution solved is that the present invention includes the shell of cylinder, and the shell lower end is fixed with lower cover, under
Terminal pad is equipped with below cover board, lower cover is rotatably fixed in terminal pad, and supporting table, supporting table are fixed with below terminal pad
Lower section is equipped with pedestal, and multi-filament bar axis is rotatably equipped on pedestal, and screw axis upper end is rotatable in supporting table, supporting table
Be equipped with link block, link block is threadedly coupled with screw axis, and brake pad there are two fixations on link block, two brake pads are about mistake
The perpendicular of screw axis axis is symmetrical, and the right end of brake pad is hingedly fixed with link block, and the left end of brake pad is connected with first
Boss, two first boss are fixed through the first screws, and the thread rotary orientation at the first screw both ends is opposite；Outside shell lower end
Side is fixed with external toothing, and the gear being rotatably connected with screw axis is engaged on the outside of external toothing, and the upper end of screw axis passes through tooth
Wheel, there are two drag rings in gear, and two drag rings are symmetrical about the perpendicular for crossing screw axis axis, the right end of drag ring with
Gear is hingedly fixed, and the left end of drag ring is connected with second boss, and two second boss are fixed through the second bolt spiral, the second spiral shell
On the contrary, be evenly distributed in multiple small sircle holes on gear, the position that supporting table corresponds to small sircle hole is equipped with pair for the thread rotary orientation at bolt both ends
Ying Kong is fitted with axis pin between small sircle hole and corresponding aperture；The rotation of shell upper end is equipped with upper cover plate, be equipped in shell with upper cover plate and
The fixing axle of lower cover rotation connection, the lower end of fixing axle are fixedly connected across lower cover with terminal pad, housing internal threads connection
There is nut block, the slider disc equipped with vertical sliding is rotated in nut block, there is gap, nut block top between fixing axle and nut block
Edge is fixed with guide rod, and guide rod upper end passes through upper cover plate；It is hinged with support plate above upper cover plate, the right end of support plate is fixed with
Blackboard, guide rod are slidably connected with support plate；It is equipped with the locking slot of circumference in nut block, lock cam, locking are placed in locking slot
Cam upper end is fixedly connected with locking bar, and the upper end of locking bar passes through slider disc and is connected with the first motor being fixed in slider disc.
Present inventive concept is ingenious, structure novel, and the lifting of blackboard height, the adjusting of blackboard pitch angle, blackboard may be implemented
The adjusting of steering realizes full classroom without dead-centre position so that the student of classroom any position can see interior on blackboard
Hold, any position that equipment can be placed on to classroom uses, and increases the interactivity of teacher and student, increases the emerging of student's study
Interest.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is the portions A enlarged diagram in Fig. 1.
Fig. 3 is the portions B enlarged diagram in Fig. 1.
Fig. 4 is A direction views in Fig. 3.
Fig. 5 is the portions C enlarged diagram in Fig. 1.
Fig. 6 is A direction views in Fig. 5.
Fig. 7 is the portions D enlarged diagram in Fig. 1.
Fig. 8 is A-A sectional views in Fig. 1.
Fig. 9 is the portions E enlarged diagram in Fig. 1.
Figure 10 is B-B sectional views in Fig. 1.
Specific implementation mode
The specific implementation mode of the present invention is described in further details below in conjunction with attached drawing 1-10.
It is provided by Fig. 1-10, the present invention includes the shell 1 of cylinder, and 1 lower end of the shell is fixed with lower cover 2, lower cover
2 lower section of plate is equipped with terminal pad 3, and lower cover 2 is rotatably fixed in terminal pad 3, and 3 lower section of terminal pad is fixed with supporting table 4, props up
It supports 4 lower section of platform and is equipped with pedestal 5, multi-filament bar axis 6 is rotatably equipped on pedestal 5, supporting table 4, support are run through in 6 upper end of screw axis
Link block 7 is rotatably equipped in platform 4, link block 7 is threadedly coupled with screw axis 6, is fixed on link block 7 there are two brake pad 8,
Two brake pads 8 are symmetrical about the perpendicular for crossing 6 axis of screw axis, and the right end of brake pad 8 is hingedly fixed with link block 7, rubs
The left end of cleaning block 8 is connected with first boss 9, and two first boss 9 are fixed through 10 spiral of the first screw, 10 both ends of the first screw
Thread rotary orientation is opposite；External toothing 11 is fixed on the outside of 1 lower end of shell, the outside of external toothing 11 is engaged with can turn with screw axis 6
The upper end of the gear 12 of dynamic connection, screw axis 6 passes through gear 12, and gear 12 is interior there are two drag ring 13, and two drag rings 13 close
Symmetrical in the perpendicular for crossing 6 axis of screw axis, the right end and gear 12 of drag ring 13 are hingedly fixed, and the left end of drag ring 13 connects
It is connected to second boss 14, two second boss 14 are fixed through 15 spiral of the second bolt, the thread rotary orientation phase at 15 both ends of the second bolt
Instead, multiple small sircle holes 16 are evenly distributed on gear 12, the position that supporting table 4 corresponds to small sircle hole 16 is equipped with corresponding aperture, small sircle hole
Axis pin 17 is fitted between 16 and corresponding aperture；The rotation of 1 upper end of shell is equipped with upper cover plate 18, be equipped in shell 1 with upper cover plate 18 and
The fixing axle 19 that lower cover 2 is rotatablely connected, the lower end of fixing axle 19 is fixedly connected across lower cover 2 with terminal pad 3, in shell 1
Be threaded with nut block 20, slider disc 21 of the rotation equipped with vertical sliding in nut block 20, fixing axle 19 and nut block 20 it
Between have gap, be fixed with guide rod 22 at 20 top edges of nut block, 22 upper end of guide rod passes through upper cover plate 18；18 top hinge of upper cover plate
It is connected to support plate 23, the right end of support plate 23 is fixed with blackboard 24, and guide rod 22 is slidably connected with support plate 23；It is set in nut block 20
There is the locking slot of circumference, places lock cam 25 in locking slot, 25 upper end of lock cam is fixedly connected with locking bar 26, locking bar 26
Upper end passes through slider disc 21 and is connected with the first motor 27 being fixed in slider disc 21.
In order to realize blackboard 24 in the stability for adjusting elevation angle process middle and lower part, 20 lower end of the nut block is fixedly connected with
Turntable 28,28 lower end of turntable are fixed with vertical placement and more fixed links 29 moving up and down, and the lower end of fixed link 29 is placed in
In shell 1, equipped with the multigroup fixing device being distributed up and down in more fixed links 29, fixing device includes fixed board 30,30 water of fixed board
Flat to be fixed in shell 1,30 lower section of fixed board is equipped with movable plate 31, and fixed link 29 passes through fixed board 30 and movable plate 31, and movable plate 31 is can be
The structure moved up and down in fixed link 29 is set with spring 32 in fixed link 29, and the upper end of spring 32 is contacted with fixed board 30,
The lower end of spring 32 is contacted with movable plate 31, and the pin 33 being interspersed in fixed link 29, pin 33 and movable plate 31 are arranged at 31 lower part of movable plate
Lower face be in contact, fixing axle 19 rotatably run through fixed board 30 and movable plate 31.
In order to realize that lower cover 2 is rotatably fixed in terminal pad 3,2 lower section of the lower cover is equipped with the T-type of circumference
Slot is fitted with T-block 44 in T-slot, and T-block 44 is slided in T-slot, and lower cover 2 and terminal pad 3 are stretched out in 44 lower end of T-block
It is fixedly connected.
In order to realize the vertical sliding of slider disc 21, multiple vertical convex blocks 34 are evenly equipped on 19 outer wall of the fixing axle,
21 inner wall of slider disc is equipped with multiple grooves coordinated with convex block 34, constitutes the knot of the vertical sliding in fixing axle 19 of slider disc 21
Structure.
In order to realize that better effect, 18 top of the upper cover plate are fixedly connected with supporting rack 35, support plate 23 is hinged on
On supporting rack 35.
In order to realize that being slidably connected for guide rod 22 and support plate 23,23 lower section of the support plate are fixed with connecting plate 36, even
Slotted hole is offered on fishplate bar 36, the end of guide rod 22 is fixed with the sliding pin 37 being inserted into slotted hole, constitutes guide rod 22 and support
The structure that plate 23 is slidably connected.
It is fixed between the support plate 23 and blackboard 24 in order to realize the stability connected between support plate 23 and blackboard 24
It is connected with reinforcing plate 38.
In order to realize the synchronous rotation of multi-filament bar axis 6, be fixed with sprocket wheel 40 on the screw axis 6, multiple sprocket wheels 40 it
Between through chain 39 connect.
In order to realize the rotation of screw axis 6, first bevel gear 41, the outside of first bevel gear 41 are fixed on screw axis 6
It is engaged with second bevel gear 42, the gear shaft end of second bevel gear 42 is connected with the second motor 43 being fixed on pedestal 5.
In order to realize that the movement of equipment, 5 lower end of the pedestal are fixedly connected with the universal wheel 44 with brake.
The present invention is in use, can be equipped with gear 12,6 its remaining part of multi-filament bar axis one of in multi-filament bar axis 6
Gear 12 can be not provided with by dividing, and brake pad 8 can be arranged in the screw axis 6 equipped with gear 12, remaining screw axis 6 may not be used
Brake pad 8 is set, equipment is moved to the position of needs, the universal wheel 44 with brake is braked and is fixed, to consolidate equipment
Fixed the no longer horizontal position of blackboard 24 is moved at the desired position, is screwed the first bolt to two brake pads 8 and supporting table 4 and is squeezed
Contact, brake pad 8 because the effect compressed and rubbed against between supporting table 4, brake pad 8 and supporting table 4 are fixed together,
8 one end of brake pad is hinged on link block 7, and brake pad 8 is an entirety with link block 7, to which link block 7 is solid with supporting table 4
It is set to an entirety, link block 7 is threadedly coupled with screw axis 6, and the second motor 43 is through second bevel gear 42 and first bevel gear 41
Screw axis 6 is driven to rotate, multi-filament bar axis 6 passes through supporting table 4, the rotation of screw axis 6 to drive supporting table 4 to rise vertically through link block 7
Drop, 4 top of supporting table are connected with blackboard 24 through shell 1, and 4 vertical lifting of supporting table drives 24 vertical lifting of blackboard, to complete
The adjusting of 24 height of blackboard inserts axis pin 17, branch during adjusting 24 height of blackboard between small sircle hole 16 and corresponding aperture
Platform 4 is supportted along 17 vertical lifting of axis pin, while the position of lock gear 12, because screw axis 6 and gear 12 are rotatablely connected, at this point,
Screw axis 6 rotates and gear 12 is fixed.
After height adjusting terminates, the first screw 10 is screwed so that brake pad 8 squeezes screw axis 6, screw axis 6 is through rubbing at this time
Cleaning block 8 is fixed as an entirety with link block 7, and the rotation of screw axis 6 drives the rotation in supporting table 4 of link block 7, because of link block 7
It is threadedly coupled with screw axis 6, the vertical position of supporting table 4 is fixed, and screwing the second screw makes drag ring 13 squeeze screw axis
6,12 rubbed ring 13 of gear is fixed as one with screw axis 6, extracts axis pin 17, and lead screw rotation driven gear 12 rotates, gear
12 rotations are rotated through 11 drive shell 1 of external toothing；
1 internal thread of shell is connected with nut block 20, and be equipped with can be along the cunning of 19 vertical sliding of fixing axle for rotation in nut block 20
Moving plate 21, fixing axle 19 have gap across nut block 20 and nut block 20, the locking slot of circumference are equipped in nut block 20,
Lock cam 25 is placed in locking slot, 25 upper end of lock cam is fixedly connected with locking bar 26, and the upper end of locking bar 26 passes through slider disc
21 and it is connected with the first motor 27 being fixed in slider disc 21, first motor 27 rotates so that lock cam 25 and nut block 20
Contact is squeezed, under the action of frictional force, lock cam 25 limits the rotation of nut block 20, and the rotation of shell 1 drives nut block 20
Vertical lifting, is fixedly connected with guide rod 22 at 20 top edges of nut block, and 22 upper end of guide rod passes through upper cover plate 18, on upper cover plate 18
Side is hinged with support plate 23, and the right end of support plate 23 is fixedly connected with blackboard 24, and guide rod 22 is slidably connected with support plate 23, constitutes
Guide rod 22 moves up and down the structure at 24 elevation angle of control blackboard, and moving up and down for guide rod 22 pushes the pitch angle of blackboard 24 to become
Change, so that the student of heel row can see the content on blackboard 24, increase the interest of student's study, increases teacher and learn
Interactivity between life；
It controls first motor 27 to rotate so that lock cam 25 squeezes fixing axle 19, under the action of frictional force, locking is convex
Wheel 25 is so that the position of slider disc 21 can not generate vertical sliding, and shell 1 is threadedly coupled with nut block 20, slider disc 21 and spiral shell
Mother tuber 20 is rotatablely connected, and shell 1 drives nut block 20 to rotate, and nut block 20 drives upper cover plate 18 to rotate through guide rod 22, upper cover plate
18 top hinged support plates 23, the toxic of support plate 23 are fixed with blackboard 24, to which nut block 20 drives blackboard 24 to rotate, in turn
Adjust the steering of blackboard 24 so that the student of both sides can see that the content on blackboard 24, the interest of enhancing student's study increase
Add the interactivity between teacher and student.
The present invention has following benefit compared with prior art：1）It is easy to operate, can there are teacher or student to operate
At the interactivity between increase teacher and student；2）It may be implemented the lifting of 24 height of blackboard, the adjusting of 24 pitch angle of blackboard,
The adjusting that blackboard 24 turns to, realizes full classroom without dead-centre position so that the student of any position can see on blackboard 24
Content, increase teacher and student between interactivity, increase student study interest；3）It is adaptable, it can be placed on
Any position of teacher can very easily enhance the interaction between teacher and student.
Present inventive concept is ingenious, structure novel, and the lifting of blackboard height, the adjusting of blackboard pitch angle, blackboard may be implemented
The adjusting of steering realizes full classroom without dead-centre position so that the student of classroom any position can see interior on blackboard
Hold, any position that equipment can be placed on to classroom uses, and increases the interactivity of teacher and student, increases the emerging of student's study
Interest.
Claims (8)
1. a kind of interactive teaching instrument, including cylindrical shell（1）, which is characterized in that the shell（1）Lower end is fixed with lower cover
Plate（2）, lower cover（2）Lower section is equipped with terminal pad（3）, lower cover（2）Rotatably it is fixed on terminal pad（3）On, terminal pad（3）
Lower section is fixed with supporting table（4）, supporting table（4）Lower section is equipped with pedestal（5）, pedestal（5）It is upper to be rotatably equipped with multi-filament bar axis
（6）, screw axis（6）Supporting table is run through in upper end（4）, supporting table（4）It is interior to be rotatably equipped with link block（7）, link block（7）With silk
Bar axis（6）It is threadedly coupled, link block（7）There are two brake pads for upper fixation（8）, two brake pads（8）About screw axis excessively（6）Axis
The perpendicular of line is symmetrical, brake pad（8）Right end and link block（7）It is hinged fixed, brake pad（8）Left end be connected with first
Boss（9）, two first boss（9）Through the first screw（10）Spiral is fixed, the first screw（10）The thread rotary orientation at both ends is opposite；
Shell（1）External toothing is fixed on the outside of lower end（11）, external toothing（11）Outside be engaged with and screw axis（6）It is rotatably connected
Gear（12）, screw axis（6）Upper end pass through gear（12）, gear（12）It is interior that there are two drag rings（13）, two drag rings
（13）About screw axis excessively（6）The perpendicular of axis is symmetrical, drag ring（13）Right end and gear（12）It is hinged fixed, friction
Ring（13）Left end be connected with second boss（14）, two second boss（14）Through the second bolt（15）Spiral is fixed, the second spiral shell
Bolt（15）The thread rotary orientation at both ends is on the contrary, gear（12）On be evenly distributed in multiple small sircle holes（16）, supporting table（4）Corresponding roundlet
Hole（16）Position be equipped with corresponding aperture, small sircle hole（16）Axis pin is fitted between corresponding aperture（17）；Shell（1）Upper end rotation is set
There is upper cover plate（18）, shell（1）It is inside equipped with and upper cover plate（18）And lower cover（2）The fixing axle of rotation connection（19）, fixing axle
（19）Lower end pass through lower cover（2）With terminal pad（3）It is fixedly connected, shell（1）Internal thread is connected with nut block（20）, nut
Block（20）Upper slider disc of the rotation equipped with vertical sliding（21）, fixing axle（19）With nut block（20）Between have gap, nut block
（20）Guide rod is fixed at top edges（22）, guide rod（22）Upper end passes through upper cover plate（18）；Upper cover plate（18）Top is hinged with
Support plate（23）, support plate（23）Right end be fixed with blackboard（24）, guide rod（22）With support plate（23）It is slidably connected；Nut block
（20）The interior locking slot equipped with circumference, locking slot is interior to place lock cam（25）, lock cam（25）Upper end is fixedly connected with lock
Bar（26）, locking bar（26）Upper end pass through slider disc（21）And it is connected with and is fixed on slider disc（21）On first motor（27）；
Fixing axle（19）Multiple vertical convex blocks are evenly equipped on outer wall（34）, slider disc（21）Inner wall is equipped with multiple and convex block（34）Match
The groove of conjunction constitutes slider disc（21）In fixing axle（19）The structure of upper vertical sliding.
2. a kind of interactive teaching instrument according to claim 1, which is characterized in that the nut block（20）Lower end is fixedly connected
There is turntable（28）, turntable（28）Lower end is fixed with vertical placement and more fixed links moving up and down（29）, fixed link（29）
Lower end be placed in shell（1）It is interior, more fixed links（29）Upper that the multigroup fixing device being distributed up and down is housed, fixing device includes fixed
Plate（30）, fixed board（30）It is horizontally fixed on shell（1）It is interior, fixed board（30）Lower section is equipped with movable plate（31）, fixed link（29）Across fixed
Plate（30）And movable plate（31）, movable plate（31）For can be in fixed link（29）On the structure that moves up and down, fixed link（29）Upper set
Equipped with spring（32）, spring（32）Upper end and fixed board（30）Contact, spring（32）Lower end and movable plate（31）Contact, movable plate
（31）Lower part is interspersed in fixed link（29）On pin（33）, pin（33）With movable plate（31）Lower face be in contact, it is fixed
Axis（19）Rotatably run through fixed board（30）And movable plate（31）.
3. a kind of interactive teaching instrument according to claim 1, which is characterized in that the lower cover（2）Lower section is equipped with circumference
T-slot, be fitted with T-block in T-slot（44）, T-block（44）It is slided in T-slot, T-block（44）Lower cover is stretched out in lower end
（2）With terminal pad（3）It is fixedly connected.
4. a kind of interactive teaching instrument according to claim 1, which is characterized in that the upper cover plate（18）Top is fixedly connected
There is supporting rack（35）, support plate（23）It is hinged on supporting rack（35）On.
5. a kind of interactive teaching instrument according to claim 1, which is characterized in that the support plate（23）Lower section is fixed with company
Fishplate bar（36）, connecting plate（36）On offer slotted hole, guide rod（22）End be fixed be inserted into slotted hole in sliding pin（37）,
Constitute guide rod（22）With support plate（23）The structure being slidably connected.
6. a kind of interactive teaching instrument according to claim 1, which is characterized in that the support plate（23）And blackboard（24）It
Between be fixedly connected with reinforcing plate（38）.
7. a kind of interactive teaching instrument according to claim 1, which is characterized in that the screw axis（6）On be fixed with sprocket wheel
（40）, multiple sprocket wheels（40）Between through chain（39）Connection.
8. a kind of interactive teaching instrument according to claim 1, which is characterized in that the screw axis（6）On be fixed with first
Bevel gear（41）, first bevel gear（41）Outside be engaged with second bevel gear（42）, second bevel gear（42）Gear shaft terminal
Portion, which is connected with, is fixed on pedestal（5）On the second motor（43）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711078280.8A CN107696752B (en) | 2017-11-06 | 2017-11-06 | A kind of interactive teaching instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711078280.8A CN107696752B (en) | 2017-11-06 | 2017-11-06 | A kind of interactive teaching instrument |
Publications (2)
| Publication Number | Publication Date |
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| CN107696752A CN107696752A (en) | 2018-02-16 |
| CN107696752B true CN107696752B (en) | 2018-11-06 |
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| CN201711078280.8A Active CN107696752B (en) | 2017-11-06 | 2017-11-06 | A kind of interactive teaching instrument |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243257A (en) * | 2018-09-07 | 2019-01-18 | 浙江工贸职业技术学院 | A kind of moveable English teaching assistant teaching aid |
| CN109812668B (en) * | 2018-12-30 | 2020-07-07 | 广东彼雍德云教育科技有限公司 | Online interactive whiteboard |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5965436B2 (en) * | 2014-07-09 | 2016-08-03 | アスクル株式会社 | Stand structure of writing board |
| CN104191867A (en) * | 2014-07-14 | 2014-12-10 | 龙岩学院 | Removable handheld self-cleaning multifunctional blackboard |
| CN206115957U (en) * | 2016-10-31 | 2017-04-19 | 黑龙江大学 | Marketing is with propaganda device |
| CN107053904A (en) * | 2017-03-28 | 2017-08-18 | 王校春 | A kind of Multifunctional mobile blackboard |
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