CN112721500A - Multifunctional teaching aid - Google Patents
Multifunctional teaching aid Download PDFInfo
- Publication number
- CN112721500A CN112721500A CN202110052057.6A CN202110052057A CN112721500A CN 112721500 A CN112721500 A CN 112721500A CN 202110052057 A CN202110052057 A CN 202110052057A CN 112721500 A CN112721500 A CN 112721500A
- Authority
- CN
- China
- Prior art keywords
- fixed
- board
- teaching aid
- box body
- frame
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
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- 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
- A47B63/00—Cabinets, racks or shelf units, specially adapted for storing books, documents, forms, or the like
- A47B63/06—Cabinets, racks or shelf units, specially adapted for storing books, documents, forms, or the like with parts, e.g. trays, card containers, movable on pivots or on chains or belts
- A47B63/065—Cabinets, racks or shelf units, specially adapted for storing books, documents, forms, or the like with parts, e.g. trays, card containers, movable on pivots or on chains or belts with trays revolving on a horizontal axis
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- 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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- 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
- G09B19/00—Teaching not covered by other main groups of this subclass
- G09B19/06—Foreign languages
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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
- G09B5/04—Electrically-operated educational appliances with audible presentation of the material to be studied
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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)
- Entrepreneurship & Innovation (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a multifunctional teaching aid, which comprises a box body with a top opening, wherein a tablet mechanism is arranged in the box body, the tablet mechanism comprises a first tablet component and a second tablet component, and a first rotating shaft is hinged between the first tablet component and the second tablet component; the two ends of the first writing board assembly are respectively provided with a screw rod assembly, the two screw rod assemblies are symmetrically arranged, the screw rod assemblies are fixed on the inner side wall of the box body, a first motor is fixed on the bottom wall of the inner side of the box body, a second rotating shaft is fixed on an output shaft of the first motor, a clamping rod assembly is hinged to the second rotating shaft, a textbook is clamped on the clamping rod assembly, and the textbook is located at the front end of the first writing board assembly; the clamping rod assembly comprises two clamping rods, a hinge wheel is hinged between the two clamping rods, the second rotating shaft is fixed on the end face of the hinge wheel, and the textbook is clamped between the two clamping rods; the teaching aid is multifunctional, is convenient for assisting teachers to give lessons, has good assisting performance, and improves teaching quality and efficiency.
Description
Technical Field
The invention relates to the field of teaching aids, in particular to a multifunctional teaching aid.
Background
Along with the development of education cause, people attach more and more importance to teacher's lecture quality in the classroom, more and more various types of teaching aid has appeared on the market from this, supplementary teacher gives lessons, improve teaching quality and efficiency, but present teaching aid is mostly simple structure, and functional singleness, especially, aim at english class, in english class teaching in-process put attention to "listen, say, read, write", do not have suitable teaching aid at present and can provide corresponding auxiliary function to the teacher, make the auxiliary performance of current teaching aid relatively poor, consequently, need a multi-functional teaching aid urgently at present.
Disclosure of Invention
The invention aims to provide a multifunctional teaching aid to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a multifunctional teaching aid, which comprises a box body with a top opening, wherein a tablet mechanism is arranged in the box body, the tablet mechanism comprises a first tablet component and a second tablet component, and a first rotating shaft is hinged between the first tablet component and the second tablet component;
the two ends of the first writing board assembly are respectively provided with a screw rod assembly, the two screw rod assemblies are symmetrically arranged, the screw rod assemblies are fixed on the inner side wall of the box body, a first motor is fixed on the bottom wall of the inner side of the box body, a second rotating shaft is fixed on an output shaft of the first motor, a clamping rod assembly is hinged to the second rotating shaft, a textbook is clamped on the clamping rod assembly, and the textbook is located at the front end of the first writing board assembly;
the clamping rod assembly comprises two clamping rods, a hinge wheel is hinged between the two clamping rods, the second rotating shaft is fixed on the end face of the hinge wheel, and the textbook is clamped between the two clamping rods;
the top of second board subassembly is equipped with the curtain subassembly, the curtain subassembly includes the release shaft, the winding has the curtain on the release shaft, the end fixing of curtain has the dead lever, the bottom mounting of dead lever has the stay cord, be fixed with the handle on the stay cord, be fixed with the couple on the handle, the both ends of release shaft are equipped with the fixed plate respectively, the fixed plate is fixed the tip of the top of second board subassembly of writing.
Preferably, the first writing board assembly comprises a frame, a flexible magnet is fixed to the back of the frame, the frame is of a rectangular frame structure, a first writing board is embedded in the frame, a hanging ring is fixed to the first writing board, and the hanging ring is detachably connected with the hook.
Preferably, the lead screw subassembly includes the second motor, the second motor is fixed on the diapire of box inboard, the output shaft of second motor up and be fixed with the one end of lead screw, the other end coupling of lead screw has the axle sleeve, the axle sleeve is fixed on the inside wall of box, sliding connection has screw nut on the lead screw, first board is fixed two between the screw nut.
Preferably, the second writing board assembly comprises the frame, the back of the frame is fixed with flexible magnet, two the connection can be dismantled to flexible magnet, the embedded second writing board that is equipped with of frame, two pass through between the frame first pivot is articulated, the fixed plate is fixed in the second writing board assembly the tip of frame top.
Preferably, handles are respectively fixed on two opposite outer side walls of the box body.
Preferably, be fixed with the fixed block on the lateral wall of box, the fixed block with any the handle homonymy sets up, the jack has been seted up on the fixed block, can dismantle in the jack and be connected with the water-jug, the bottleneck of water-jug is down, the bottleneck department of water-jug has the water pipe through connecting the intercommunication, the water pipe stretches into the inner chamber of box and has inserted fixed cover, fixed cover is kept away from be fixed with the cover body on the terminal surface of water pipe, the cover body with the water pipe intercommunication, a plurality of infiltration holes have been seted up on the cover body, the lateral surface of the cover body is covered with the rag, the edge of rag is fixed through the rubber band fixed on.
Preferably, a flow regulating valve is installed on the water pipe and is located in the box body.
Preferably, the front end of the first writing board is provided with a camera, the camera is fixed with an inner rod end of an electric telescopic rod, the electric telescopic rod is fixed on the inner side wall of the box body, and the electric telescopic rod is parallel to the bottom wall of the box body.
Preferably, an audio player is arranged in the box body, the audio player is electrically connected with a control system, and the control system is electrically connected with the camera.
Preferably, an opening is formed in a side wall, opposite to the front end of the first writing board, of the box body, a first cover plate is detachably connected into the opening, the opening is formed in a side wall, opposite to the rear end of the first writing board, of the box body, and a second cover plate is detachably connected into the opening.
The invention discloses the following technical effects: when the device is used, the first cover plate is opened to ensure that the first writing board is just opposite to a student, the lead screw component can adjust the height of the first writing board, the clamping rod component can be driven by the first motor to drive the textbook to be turned up, the top end edge of the textbook is lapped on the first writing board, a teacher can correspondingly write teaching contents on the first writing board aiming at the textbook contents when giving lessons, so that the textbook contents and the writing teaching contents are convenient to correspond, the student can be conveniently driven to follow up to study, the listening efficiency of the student is improved, the textbook contents can be scanned by the camera, a video signal is converted into an audio signal by the control system, the textbook contents can be played by the audio player to assist the teacher to lead the student to read the textbook, and in addition, before the teacher can write contents needing to be written on the second writing board first, the curtain is pulled down to shield the second writing board, and the acquaintance writing ability of the student can be exercised during the lessons, after the student writes silently, the student can check the answer through the silently written content on the second writing board by opening the curtain.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a front view of the multi-functional teaching aid of the present invention;
FIG. 2 is a schematic structural diagram of the multifunctional teaching aid of the present invention;
FIG. 3 is a side view of the multi-functional teaching aid of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 2;
FIG. 5 is a schematic view of the clamping bar assembly of the present invention;
the notebook computer comprises a case 1, a first rotating shaft 2, a first motor 3, a second rotating shaft 4, a textbook 5, a clamping rod 6, a hinge 7, a reset shaft 8, a curtain 9, a fixing rod 10, a pull rope 11, a handle 12, a hook 13, a fixing plate 14, a frame 15, a flexible magnet 16, a first writing board 17, a hanging ring 18, a second motor 19, a lead screw 20, a shaft sleeve 21, a lead screw nut 22, a second writing board 23, a handle 24, a fixing block 25, a jack 26, a water bottle 27, a connector 28, a water pipe 29, a fixing sleeve 30, a cover 31, a water seepage hole 32, a cleaning cloth 33, a leather band 34, a flow regulating valve 35, a camera 36, an electric telescopic rod 37, an audio player 38, a first cover plate 39 and a second cover plate 40.
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.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1-5, the invention provides a multifunctional teaching aid, which comprises a box body 1 with a top opening, wherein an anti-skid shock pad (not marked in the figures) is paved on the bottom surface of the box body 1, the top opening of the box body 1 is convenient for a first writing board assembly and a second writing board assembly to extend out of the box body 1, a writing board mechanism is arranged in the box body 1, the writing board mechanism comprises the first writing board assembly and the second writing board assembly, a first rotating shaft 2 is hinged between the first writing board assembly and the second writing board assembly, the second writing board assembly can be turned along the first rotating shaft 2 to be flush with the first writing board assembly, and the second writing board assembly can be supported by a support (not marked in the figures);
the two ends of the first writing board assembly are respectively provided with a screw rod assembly, the two screw rod assemblies are symmetrically arranged, the screw rod assemblies are fixed on the inner side wall of the box body 1, the height of the first writing board assembly can be adjusted through the screw rod assemblies, a first motor 3 is fixed on the bottom wall of the inner side of the box body 1, a second rotating shaft 4 is fixed on an output shaft of the first motor 3, a clamping rod assembly is hinged to the second rotating shaft 4, a textbook 5 is clamped on the clamping rod assembly, and the textbook 5 is located at the front end of the first writing board assembly; the clamping rod assembly comprises two clamping rods 6, a hinge wheel 7 is hinged between the two clamping rods 6, the second rotating shaft 4 is fixed on the end face of the hinge wheel 7, and the textbook 5 is clamped between the two clamping rods 6; the textbook 5 can be clamped between the two clamping rods 6 by adjusting the hinged wheels 7, and the first motor 3 drives the second rotating shaft 4 to rotate, so that the textbook 5 can be driven to be turned up until the top end edge of the textbook 5 is lapped on the first writing board 17 to stop.
The top of second board subassembly is equipped with the curtain subassembly, the curtain subassembly includes reset shaft 8, and reset shaft 8 is the reset spring axle, and optional window curtain axle changes short preparation into, and here is prior art, no longer gives details, reset shaft 8 is gone up the solderless wrapped connection and is had curtain 9, the end fixing of curtain 9 has dead lever 10, the bottom mounting of dead lever 10 has stay cord 11, be fixed with handle 12 on the stay cord 11, be fixed with couple 13 on the handle 12, reset shaft 8's both ends are equipped with fixed plate 14 respectively, fixed plate 14 is fixed the tip of the top of second board subassembly is write, can drag curtain 9 through pulling handle 12 and take out along reset shaft 8.
Further optimization scheme, first board subassembly of writing includes frame 15, the back of frame 15 is fixed with flexible magnet 16, frame 15 is the rectangle frame structure, frame 15 is embedded to be equipped with first board 17, be fixed with link 18 on the first board 17, link 18 with couple 13 can dismantle the connection, takes out after curtain 9 shelters from second board 23, hangs hook 13 and establishes on link 18, can fix the position of curtain 9.
Further optimize the scheme, lead screw assembly includes second motor 19, second motor 19 is fixed on the diapire of box 1 inboard, second motor 19's output shaft up and be fixed with lead screw 20's one end, lead screw 20's other end coupling has axle sleeve 21, axle sleeve 21 is fixed on the inside wall of box 1, sliding connection has lead screw nut 22 on lead screw 20, first board 17 is fixed two between lead screw nut 22, rotate through two synchronous drive lead screw 20 of second motor 19, can make lead screw nut 22 drive the height of adjusting first board 17.
Further optimization scheme, the second board subassembly includes frame 15, the back of frame 15 is fixed with flexible magnet 16, two flexible magnet 16 can dismantle the connection, the embedded second board 23 that is equipped with of frame 15, two pass through between the frame 15 first pivot 2 is articulated, fixed plate 14 is fixed in the second board subassembly the tip of frame 15 top when resetting second board 23, the back of first board 17 and the back laminating of second board 23 for flexible magnet 16 attracts each other, accomplishes fixedly.
Further optimize the scheme, be fixed with handle 24 on two relative lateral walls of box 1 respectively, be convenient for the teacher to mention this device to the lectern on.
According to a further optimization scheme, a fixed block 25 is fixed on the outer side wall of the box body 1, the fixed block 25 is arranged on the same side as any one of the handles 24, a jack 26 is formed in the fixed block 25, a water bottle 27 is detachably connected in the jack 26, the bottle mouth of the water bottle 27 faces downwards, the bottle mouth of the water bottle 27 is communicated with a water pipe 29 through a connector 28, the water pipe 29 extends into the inner cavity of the box body 1 and is connected with a fixed sleeve 30, a cover body 31 is fixed on the end face, far away from the water pipe 29, of the fixed sleeve 30, the cover body 31 is communicated with the water pipe 29, a plurality of water seepage holes 32 are formed in the cover body 31, cleaning cloth 33 is covered on the outer side face of the cover body 31, the edge of the cleaning cloth 33 is fixed on the fixed sleeve 30 through a rubber band 34, when a teacher needs to erase and write the board, the water bottle 27 is filled with water, the water is injected inwards along the water pipe 29, so that the water is introduced into the cover body 31 and slowly overflows outwards through the water seepage holes 32, the cleaning cloth 33 is wetted, the rubber band 34 on the cleaning cloth 33 is taken down when the cleaning cloth is used, the cleaning cloth 33 is separated from the fixed sleeve 30, and the writing board can be cleaned.
Further optimize the scheme, install flow control valve 35 on the water pipe 29, flow control valve 35 is located in box 1, through the adjustable discharge of flow control valve 35, close water pipe 29 after the rag is soaked, prevent to ooze and cause the influence to box 1 in.
Further optimization scheme, the front end of first board 17 is equipped with camera 36, pole end in camera 36 is fixed with electric telescopic handle 37, electric telescopic handle 37 is fixed on the inside wall of box 1, electric telescopic handle 37 is on a parallel with the diapire of box 1 is through the extension length of adjustment electric telescopic handle 37 for camera 36 can be to textbook 5 content real-time scanning, converts the video content of scanning into audio signal through control system, plays through audio player 38, need not to use recording playback devices, and it is convenient to use.
According to the further optimization scheme, an audio player 38 is arranged in the box body 1, the audio player 38 is electrically connected with a control system, the control system is electrically connected with the camera 36, the control system comprises a microprocessor, the microprocessor is electrically connected with a signal converter, the signal converter is electrically connected with a video acquisition card, the video acquisition card is electrically connected with the camera 36, video content of the textbook 5 is sent in real time through the camera 36, the video signal is collected through the video acquisition card, the video signal is converted into an audio signal through the signal converter, the audio signal is sent to the audio player 8 through the microprocessor and then played, and therefore the audio information of the textbook 5 can be automatically played in real time.
Further optimize the scheme, on the box 1 with the opening has been seted up on the relative lateral wall of first board 17 front end, can dismantle in the opening and be connected with first apron 39, on the box 1 with seted up on the relative lateral wall of first board 17 rear end the opening, can dismantle in the opening and be connected with second apron 40, open first apron 39 during the use of this device, can expose the inside teaching aid structure of box 1, open second apron 40 and be convenient for turn second board 23, prevent mutual interference between the structure.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (10)
1. The utility model provides a multifunctional teaching aid, is including offering box (1) of apical foramen, its characterized in that: a tablet mechanism is arranged in the box body (1), the tablet mechanism comprises a first tablet component and a second tablet component, and a first rotating shaft (2) is hinged between the first tablet component and the second tablet component;
the two ends of the first writing board assembly are respectively provided with a screw rod assembly, the two screw rod assemblies are symmetrically arranged, the screw rod assemblies are fixed on the inner side wall of the box body (1), the bottom wall of the inner side of the box body (1) is fixed with a first motor (3), the output shaft of the first motor (3) is fixed with a second rotating shaft (4), the second rotating shaft (4) is hinged with a clamping rod assembly, a textbook (5) is clamped on the clamping rod assembly, and the textbook (5) is located at the front end of the first writing board assembly;
the clamping rod assembly comprises two clamping rods (6), a hinge wheel (7) is hinged between the two clamping rods (6), the second rotating shaft (4) is fixed on the end face of the hinge wheel (7), and the textbook (5) is clamped between the two clamping rods (6);
the top of second board subassembly is equipped with the curtain subassembly, the curtain subassembly includes reset shaft (8), it has curtain (9) to reset on shaft (8) the wraparound, the end fixing of curtain (9) has dead lever (10), the bottom mounting of dead lever (10) has stay cord (11), be fixed with handle (12) on stay cord (11), be fixed with couple (13) on handle (12), the both ends of reset shaft (8) are equipped with fixed plate (14) respectively, fixed plate (14) are fixed the tip of the top of second board subassembly of writing.
2. A multi-functional teaching aid according to claim 1, characterized in that: first board subassembly includes frame (15), the back of frame (15) is fixed with flexible magnet (16), frame (15) are rectangle frame structure, frame (15) embedded first board (17) that are equipped with, be fixed with link (18) on first board (17), link (18) with couple (13) can be dismantled and be connected.
3. A multi-functional teaching aid according to claim 2, wherein: lead screw assembly includes second motor (19), second motor (19) are fixed on the diapire of box (1) inboard, the output shaft of second motor (19) up and be fixed with the one end of lead screw (20), the other end coupling of lead screw (20) has axle sleeve (21), axle sleeve (21) are fixed on the inside wall of box (1), sliding connection has lead screw nut (22) on lead screw (20), first board (17) are fixed two between lead screw nut (22).
4. A multi-functional teaching aid according to claim 2, wherein: the second board subassembly includes frame (15), the back of frame (15) is fixed with flexible magnet (16), two flexible magnet (16) can be dismantled the connection, frame (15) embedded second board (23) that are equipped with, two pass through between frame (15) first pivot (2) are articulated, fixed plate (14) are fixed in the second board subassembly the tip of frame (15) top.
5. A multi-functional teaching aid according to claim 1, characterized in that: handles (24) are respectively fixed on the two opposite outer side walls of the box body (1).
6. A multi-functional teaching aid according to claim 5, characterized in that: a fixed block (25) is fixed on the outer side wall of the box body (1), the fixed block (25) is arranged at the same side of any handle (24), the fixed block (25) is provided with an insertion hole (26), a water bottle (27) is detachably connected in the insertion hole (26), the bottle mouth of the water bottle (27) faces downwards, the bottle mouth of the water bottle (27) is communicated with a water pipe (29) through a joint (28), the water pipe (29) extends into the inner cavity of the box body (1) and is inserted with a fixed sleeve (30), a cover body (31) is fixed on the end surface of the fixed sleeve (30) far away from the water pipe (29), the cover body (31) is communicated with the water pipe (29), a plurality of water seepage holes (32) are arranged on the cover body (31), the outer side surface of the cover body (31) is covered with cleaning cloth (33), and the edge of the cleaning cloth (33) is fixed on the fixed sleeve (30) through a rubber band (34).
7. A multi-functional teaching aid according to claim 6, characterized in that: install flow control valve (35) on water pipe (29), flow control valve (35) are located in box (1).
8. A multi-functional teaching aid according to claim 2, wherein: the front end of first board (17) is equipped with camera (36), camera (36) are fixed with the interior pole end of electric telescopic handle (37), electric telescopic handle (37) are fixed on the inside wall of box (1), electric telescopic handle (37) are on a parallel with the diapire of box (1).
9. A multi-functional teaching aid according to claim 8, wherein: an audio player (38) is arranged in the box body (1), the audio player (38) is electrically connected with a control system, and the control system is electrically connected with the camera (36).
10. A multi-functional teaching aid according to claim 1, characterized in that: the writing case is characterized in that an opening is formed in the side wall, opposite to the front end of the first writing board (17), of the case body (1), a first cover plate (39) is detachably connected into the opening, the side wall, opposite to the rear end of the first writing board (17), of the case body (1) is provided with the opening, and a second cover plate (40) is detachably connected into the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110052057.6A CN112721500A (en) | 2021-01-15 | 2021-01-15 | Multifunctional teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110052057.6A CN112721500A (en) | 2021-01-15 | 2021-01-15 | Multifunctional teaching aid |
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| Publication Number | Publication Date |
|---|---|
| CN112721500A true CN112721500A (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110052057.6A Pending CN112721500A (en) | 2021-01-15 | 2021-01-15 | Multifunctional teaching aid |
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| CN212124677U (en) * | 2020-04-22 | 2020-12-11 | 韩艳华 | Multifunctional Chinese teaching device |
| CN211857875U (en) * | 2020-05-14 | 2020-11-03 | 石磊 | Novel accounting teaching simulation training device |
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Application publication date: 20210430 |
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