CN112382145A - Multimedia teaching device based on synchronous text teaching content display - Google Patents
Multimedia teaching device based on synchronous text teaching content display Download PDFInfo
- Publication number
- CN112382145A CN112382145A CN202011434286.6A CN202011434286A CN112382145A CN 112382145 A CN112382145 A CN 112382145A CN 202011434286 A CN202011434286 A CN 202011434286A CN 112382145 A CN112382145 A CN 112382145A
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- CN
- China
- Prior art keywords
- wall
- mounting
- curtain
- plate
- groove
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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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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/58—Projection screens collapsible, e.g. foldable; of variable area
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Overhead Projectors And Projection Screens (AREA)
Abstract
The invention discloses a multimedia teaching device based on synchronous character teaching content display, which comprises a projector fixedly arranged on the top wall of a wall and a movably arranged curtain mounting cylinder, wherein a curtain is arranged on the curtain mounting cylinder, a balance weight shaft is fixedly arranged at the bottom end of the curtain, a base is arranged at the bottom end of the curtain mounting cylinder, a fixed plate is fixedly arranged on the top wall of the base, two lifting rods are symmetrically and movably inserted on the top wall of the fixed plate, a top plate is fixedly arranged at the top ends of the two lifting rods together, the curtain mounting cylinder is fixedly arranged on the outer side wall on one side of the top plate, and two locking bolts matched with the lifting rods are symmetrically in threaded connection on the outer side wall at the top end of the fixed plate. According to the invention, the curtain mounting cylinder and the curtain can be conveniently moved and fixed, so that the curtain can be moved to a proper position according to teaching needs, all students can clearly observe teaching contents on the curtain, the teaching effect is improved, and the practical effect is good.
Description
Technical Field
The invention relates to the technical field of multimedia teaching, in particular to a multimedia teaching device based on synchronous character teaching content display.
Background
The multimedia teaching is that in the teaching process, according to the characteristics of a teaching target and a teaching object, modern teaching media are reasonably selected and applied through teaching design, and are organically combined with the traditional teaching means to jointly participate in the whole teaching process, and various media information acts on students to form a reasonable teaching process structure so as to achieve the optimized teaching effect.
Present multimedia teaching device based on synchronous characters teaching content shows mostly includes the projecting apparatus and with the screen of projecting apparatus mutually supporting, teach through the projecting apparatus with teaching content projection to the screen, in order to promote the aesthetic property of screen installation and avoid the teaching blackboard's of screen influence use, at present mostly with screen fixed mounting in one side of blackboard and wall, thereby lead to keeping away from the teaching content on the screen of the unable clear observation of classmate of screen one side, thereby make the teaching effect relatively poor, consequently need to improve to this.
Disclosure of Invention
The invention aims to solve the problem that a multimedia teaching device based on synchronous character teaching content display is unreasonable in arrangement in the prior art, and provides the multimedia teaching device based on synchronous character teaching content display.
In order to achieve the purpose, the invention adopts the following technical scheme:
a multimedia teaching device based on synchronous character teaching content display comprises a projector fixedly mounted on the wall top wall and a movably mounted curtain mounting cylinder, wherein a curtain is mounted on the curtain mounting cylinder, a balance weight shaft is fixedly mounted at the bottom end of the curtain, a base is arranged at the bottom end of the curtain mounting cylinder, a fixed plate is fixedly mounted on the top wall of the base, two lifting rods are symmetrically and movably inserted on the top wall of the fixed plate, a top plate is fixedly mounted at the top ends of the two lifting rods together, the curtain mounting cylinder is fixedly mounted on the outer side wall on one side of the top plate, two locking bolts mutually matched with the lifting rods are symmetrically and in threaded connection on the outer side wall at the top end of the fixed plate, a connecting device is arranged between the balance weight shaft and the fixed plate, a mounting plate is fixedly mounted on the wall top wall, and a plurality of fastening bolts are uniformly inserted on the bottom wall of the, the fastening bolts penetrate through the mounting plate and are in threaded connection with the top wall of the wall, the top of the mounting shaft is fixedly provided with a connecting plate, the bottom wall of the mounting plate is fixedly provided with a connecting seat matched with the connecting plate, the connecting plate is detachably mounted on the connecting seat, a plurality of fastening screws are uniformly inserted on the bottom wall of the connecting plate and penetrate through the connecting plate and are in threaded connection with the connecting seat, an auxiliary mounting device is arranged between the connecting plate and the connecting seat and comprises a connecting block fixedly mounted on the top wall of the connecting plate, the bottom wall of the connecting seat is provided with a connecting groove matched with the connecting block, a limiting block is movably mounted on the connecting block, the inner side wall of the connecting groove is provided with a limiting groove matched with the limiting block, and the outer side wall of one side of the connecting seat is in threaded connection with a push rod matched, and one end of the push rod extends into the limit groove.
Preferably, a plurality of universal wheels are evenly installed to the bottom of base, every all install the locking device on the universal wheel.
Preferably, two all around being equipped with first spring on the lateral wall of lifter, and the both ends of first spring fixed mounting respectively on fixed plate and roof.
Preferably, connecting device is including two first threaded rods that the symmetry set up, two the equal threaded connection of one end of first threaded rod has the second threaded rod, and the equal threaded connection of one end of second threaded rod is epaxial at the counter weight, the epaxial symmetry of counter weight is seted up two first screw holes of mutually supporting with the second threaded rod, evenly set up a plurality of second screw holes of mutually supporting with first threaded rod on the lateral wall that the fixed plate is close to curtain one side.
Preferably, the connecting block is provided with a mounting groove mutually matched with the limiting block, a plurality of movable rods are movably inserted in the inner side wall of the mounting groove, one end of each movable rod is fixedly mounted on the limiting block, and each movable rod is fixedly mounted on the outer side wall of the corresponding movable rod in a winding mode and is provided with a second spring, and the two ends of each second spring are fixedly mounted on the outer side wall of the limiting block and the inner side wall of the mounting groove respectively.
Preferably, one end of the limiting block, which is far away from the connecting block, is a spherical surface.
Preferably, the outer side wall of the connecting seat is provided with a groove matched with the push rod, and the push rod is positioned in the groove.
Compared with the prior art, the invention has the following beneficial effects:
1. the curtain mounting cylinder and the curtain can be conveniently moved and fixed, so that the curtain can be moved to a proper position according to teaching requirements, all students can clearly observe teaching contents on the curtain, the teaching effect is improved, and the practical effect is good;
2. a connecting device is arranged between the counterweight shaft and the fixing plate, and the counterweight shaft and the curtain can be prevented from randomly shaking after being fixedly connected to the fixing plate, so that the projection effect of the curtain is improved, and the using effect is good;
3. be equipped with supplementary installation device between connecting plate and the connecting seat, insert the connecting block in the spread groove that corresponds, the one end that the second spring promoted the stopper removes to the spacing inslot just can be with stopper, connecting block and the supplementary bottom of fixing to the connecting seat of connecting plate, then use fastening screw that just can be convenient fix the bottom at connecting seat and mounting panel with connecting plate, installation axle and projecting apparatus to the installation degree of difficulty of projecting apparatus has greatly been reduced.
Drawings
FIG. 1 is a side sectional view of a screen portion of a multimedia teaching apparatus for displaying teaching content based on synchronized text in accordance with the present invention;
FIG. 2 is a schematic side view of a screen portion of a multimedia teaching apparatus for displaying teaching contents based on synchronized text according to the present invention;
FIG. 3 is a schematic diagram of a projector portion of a multimedia teaching apparatus for displaying teaching contents based on synchronized text according to the present invention;
FIG. 4 is an enlarged view of part A of a multimedia teaching apparatus for displaying teaching contents based on synchronized text according to the present invention;
fig. 5 is an enlarged view of a structure of a portion B of a multimedia teaching apparatus based on synchronous text teaching content display according to the present invention.
In the figure: the curtain mounting structure comprises a projector 1, a curtain mounting cylinder 2, a curtain 3, a counterweight shaft 4, a base 5, a fixing plate 6, a lifting rod 7, a top plate 8, a locking bolt 9, a universal wheel 10, a first spring 11, a first threaded rod 12, a second threaded rod 13, a first threaded hole 14, a second threaded hole 15, a mounting plate 16, a fastening bolt 17, a mounting shaft 18, a connecting plate 19, a connecting seat 20, a connecting block 21, a connecting groove 22, a limiting block 23, a mounting groove 24, a movable rod 25, a second spring 26, a limiting groove 27, a push rod 28 and a groove 29.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-5, a multimedia teaching device based on synchronous character teaching content display, comprising a projector 1 fixedly mounted on the wall top wall and a movably mounted curtain mounting cylinder 2, a curtain 3 mounted on the curtain mounting cylinder 2, a balance weight shaft 4 fixedly mounted at the bottom end of the curtain 3, a base 5 arranged at the bottom end of the curtain mounting cylinder 2, a fixed plate 6 fixedly mounted on the top wall of the base 5, two lifting rods 7 symmetrically and movably inserted on the top wall of the fixed plate 6, a top plate 8 fixedly mounted at the top ends of the two lifting rods 7 together, and the curtain mounting cylinder 2 fixedly mounted on the outer side wall of one side of the top plate 8, two locking bolts 9 mutually matched with the lifting rods 7 symmetrically and threadedly connected on the outer side wall of the top end of the fixed plate 6, the heights of the lifting rods 7, the top plate 8 and the curtain mounting cylinder 2 can be conveniently adjusted, a plurality of universal wheels 10 are uniformly mounted at the bottom end of the base, each universal wheel 10 is provided with a locking device, so that the base 5 can be conveniently moved and fixed.
All around being equipped with first spring 11 on the lateral wall of two lifter 7, and the both ends of first spring 11 fixed mounting respectively is on fixed plate 6 and roof 8, can prevent not hard up locking bolt 9 back lifter 7 can be fast to the fixed plate 6 internal contraction to the regulation degree of difficulty of lifter 7 has been reduced.
A connecting device is arranged between the weight shaft 4 and the fixing plate 6, the connecting device comprises two first threaded rods 12 which are symmetrically arranged, one ends of the two first threaded rods 12 are all in threaded connection with second threaded rods 13, one ends of the second threaded rods 13 are all in threaded connection with the weight shaft 4, two first threaded holes 14 which are mutually matched with the second threaded rods 13 are symmetrically arranged on the weight shaft 4, a plurality of second threaded holes 15 which are mutually matched with the first threaded rods 12 are uniformly arranged on the outer side wall of one side, close to the curtain 3, of the fixing plate 6, one ends of the first threaded rods 12 are in threaded connection with the corresponding second threaded holes 15, then the second threaded rods 13 are rotated, one ends of the second threaded rods 13 are in threaded connection with the corresponding first threaded holes 14, the weight shaft 4 can be fixedly connected on the fixing plate 6, and therefore the weight shaft 4 and the curtain 2 can be prevented from shaking randomly, thereby it has improved and has seted up the mounting groove 24 of mutually supporting with stopper 23 on curtain 2 connecting block 21, the activity is inserted on the inside wall of mounting groove 24 and is equipped with a plurality of movable rods 25, and the equal fixed mounting of one end of movable rod 25 is on stopper 23, all around being equipped with second spring 26 on the lateral wall of every movable rod 25, and the both ends of second spring 26 respectively the projection effect of fixed mounting on the lateral wall of stopper 23 and mounting groove 24's inside wall.
A mounting plate 16 is fixedly mounted on the wall top wall, a plurality of fastening bolts 17 are uniformly inserted on the bottom wall of the mounting plate 16, the fastening bolts 17 all penetrate through the mounting plate 16 and are in threaded connection with the wall top wall, a mounting shaft 18 is fixedly mounted on the top wall of the projector 1, a connecting plate 19 is fixedly mounted at the top end of the mounting shaft 18, a connecting seat 20 matched with the connecting plate 19 is fixedly mounted on the bottom wall of the mounting plate 16, the connecting plate 19 is detachably mounted on the connecting seat 20, a plurality of fastening screws are uniformly inserted on the bottom wall of the connecting plate 19, the fastening screws all penetrate through the connecting plate 19 and are in threaded connection with the connecting seat 20, an auxiliary mounting device is arranged between the connecting plate 19 and the connecting seat 20, the auxiliary mounting device comprises a connecting block 21 fixedly mounted on the top wall of the connecting plate 19, a connecting groove 22 matched with the, offer on connecting block 21 with stopper 23 mounting groove 24 of mutually supporting, the activity is inserted on the inside wall of mounting groove 24 and is equipped with a plurality of movable rods 25, and the equal fixed mounting of one end of movable rod 25 is on stopper 23, all around being equipped with second spring 26 on the lateral wall of every movable rod 25, and the both ends of second spring 26 are fixed mounting respectively on the lateral wall of stopper 23 and the inside wall of mounting groove 24, stopper 23 can the horizontal direction free movement, the one end that connecting block 21 was kept away from to stopper 23 is the sphere, stopper 23's sphere receives can contract to mounting groove 24 in the extrusion back, thereby be convenient for insert connecting block 21 and stopper 23 in spread groove 22.
A limit groove 27 matched with the limit block 23 is formed in the inner side wall of the connecting groove 22, a push rod 28 matched with the limit block 23 is connected to the outer side wall of one side of the connecting seat 20 in a threaded mode, one end of the push rod 28 extends into the limit groove 27, the connecting block 21 is inserted into the corresponding connecting groove 22, and the connecting plate 19 is attached to the bottom end of the connecting seat 20 tightly, and the second spring 26 pushes one end of the limit block 23 to move into the corresponding limit groove 27 due to the fact that the elastic force of the second spring is restored, so that the limit block 23, the connecting block 21 and the connecting plate 19 can be fixed to the bottom end of the connecting seat 20 in an auxiliary mode, the connecting plate 19, the mounting shaft 18 and the projector 1 can be conveniently fixed to the bottom ends of the connecting seat 20, the mounting plate 16 and the wall top; the push rod 28 is rotated and one end of the limiting block 23 is pushed to the outer side of the limiting groove 27, so that the limiting block 23, the connecting block 21 and the connecting plate 19 can be conveniently detached from the bottom end of the connecting seat 20, and the projector 1 can be conveniently detached.
The outer side wall of the connecting seat 20 is provided with a groove 29 which is matched with the push rod 28, and the push rod 28 is positioned in the groove 29, so that the push rod 28 can be prevented from protruding out of the connecting seat 20.
In the invention, the connecting block 21 is inserted into the corresponding connecting groove 22 and the connecting plate 19 is tightly attached to the bottom end of the connecting seat 20, the second spring 26 pushes one end of the limiting block 23 to move into the corresponding limiting groove 27 due to the restoration of the elasticity of the second spring, so that the limiting block 23, the connecting block 21 and the connecting plate 19 can be fixed to the bottom end of the connecting seat 20 in an auxiliary manner, and then the connecting plate 19, the mounting shaft 18 and the projector 1 can be conveniently fixed to the bottom ends of the connecting seat 20, the mounting plate 16 and the wall top wall by using fastening screws, thereby greatly reducing the mounting difficulty of the projector 1; the push rod 28 is rotated and one end of the limiting block 23 is pushed to the outer side of the limiting groove 27, so that the limiting block 23, the connecting block 21 and the connecting plate 19 can be conveniently detached from the bottom end of the connecting seat 20, and the projector 1 can be conveniently detached.
Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a multimedia teaching device based on synchronous characters teaching content shows, includes projecting apparatus (1) and movable mounting's curtain installation section of thick bamboo (2) of fixed mounting on the wall roof, install curtain (3) on curtain installation section of thick bamboo (2), the bottom fixed mounting of curtain (3) has counter weight axle (4), its characterized in that: the bottom of the curtain mounting cylinder (2) is provided with a base (5), a fixed plate (6) is fixedly mounted on the top wall of the base (5), two lifting rods (7) are symmetrically and movably inserted on the top wall of the fixed plate (6), a top plate (8) is fixedly mounted on the top ends of the two lifting rods (7) together, the curtain mounting cylinder (2) is fixedly mounted on the outer side wall on one side of the top plate (8), two locking bolts (9) matched with the lifting rods (7) are symmetrically and in threaded connection on the outer side wall on the top end of the fixed plate (6), a connecting device is arranged between the counterweight shaft (4) and the fixed plate (6), a mounting plate (16) is fixedly mounted on the wall top wall, a plurality of fastening bolts (17) are uniformly inserted on the bottom wall of the mounting plate (16), and the fastening bolts (17) penetrate through the mounting plate (16) and are in threaded connection on the wall top, the projector comprises a projector body, and is characterized in that a mounting shaft (18) is fixedly mounted on the top wall of the projector (1), a connecting plate (19) is fixedly mounted at the top end of the mounting shaft (18), a connecting seat (20) matched with the connecting plate (19) is fixedly mounted on the bottom wall of the mounting plate (16), the connecting plate (19) is demounted and mounted on the connecting seat (20), a plurality of fastening screws are uniformly inserted into the bottom wall of the connecting plate (19), the fastening screws penetrate through the connecting plate (19) and are in threaded connection with the connecting seat (20), an auxiliary mounting device is arranged between the connecting plate (19) and the connecting seat (20), the auxiliary mounting device comprises a connecting block (21) fixedly mounted on the top wall of the connecting plate (19), a connecting groove (22) matched with the connecting block (21) is formed in the bottom wall of the connecting seat (20), and a limiting block, offer on the inside wall of spread groove (22) with stopper (23) spacing groove (27) of mutually supporting, threaded connection has on the outside wall of connecting seat (20) one side and stopper (23) push rod (28) of mutually supporting, and the one end of push rod (28) extends to in spacing groove (27).
2. The multimedia teaching device based on the synchronous text teaching content display according to claim 1, wherein: a plurality of universal wheels (10) are evenly installed to the bottom of base (5), every all install the locking device on universal wheel (10).
3. The multimedia teaching device based on the synchronous text teaching content display according to claim 1, wherein: two all around being equipped with first spring (11) on the lateral wall of lifter (7), and the both ends of first spring (11) are fixed mounting respectively on fixed plate (6) and roof (8).
4. The multimedia teaching device based on the synchronous text teaching content display according to claim 1, wherein: connecting device is including two first threaded rod (12) that the symmetry set up, two the equal threaded connection of one end of first threaded rod (12) has second threaded rod (13), and the equal threaded connection of one end of second threaded rod (13) is on counterweight shaft (4), counterweight shaft (4) are gone up the symmetry and are seted up two first screw hole (14) of mutually supporting with second threaded rod (13), evenly set up a plurality ofly on the lateral wall that fixed plate (6) are close to curtain (3) one side and mutually support second screw hole (15) with first threaded rod (12).
5. The multimedia teaching device based on the synchronous text teaching content display according to claim 1, wherein: offer on connecting block (21) mounting groove (24) of mutually supporting with stopper (23), the activity is inserted on the inside wall of mounting groove (24) and is equipped with a plurality of movable rods (25), and the equal fixed mounting of one end of movable rod (25) is on stopper (23), every all around being equipped with second spring (26) on the lateral wall of movable rod (25), and the both ends difference fixed mounting of second spring (26) is on the lateral wall of stopper (23) and the inside wall of mounting groove (24).
6. The multimedia teaching device based on the synchronous text teaching content display according to claim 1, wherein: one end, far away from the connecting block (21), of the limiting block (23) is spherical.
7. The multimedia teaching device based on the synchronous text teaching content display according to claim 1, wherein: the outer side wall of the connecting seat (20) is provided with a groove (29) matched with the push rod (28), and the push rod (28) is positioned in the groove (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011434286.6A CN112382145A (en) | 2020-12-11 | 2020-12-11 | Multimedia teaching device based on synchronous text teaching content display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011434286.6A CN112382145A (en) | 2020-12-11 | 2020-12-11 | Multimedia teaching device based on synchronous text teaching content display |
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| Publication Number | Publication Date |
|---|---|
| CN112382145A true CN112382145A (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011434286.6A Withdrawn CN112382145A (en) | 2020-12-11 | 2020-12-11 | Multimedia teaching device based on synchronous text teaching content display |
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| Country | Link |
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| CN (1) | CN112382145A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007571A (en) * | 2021-02-23 | 2021-06-22 | 焦作大学 | On-spot engineering safety monitoring device based on computer network |
-
2020
- 2020-12-11 CN CN202011434286.6A patent/CN112382145A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007571A (en) * | 2021-02-23 | 2021-06-22 | 焦作大学 | On-spot engineering safety monitoring device based on computer network |
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Application publication date: 20210219 |
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