CN113257082A - Presentation device is used in teaching of visual transmission specialty - Google Patents
Presentation device is used in teaching of visual transmission specialty Download PDFInfo
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- CN113257082A CN113257082A CN202110528275.2A CN202110528275A CN113257082A CN 113257082 A CN113257082 A CN 113257082A CN 202110528275 A CN202110528275 A CN 202110528275A CN 113257082 A CN113257082 A CN 113257082A
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- rotating shaft
- locking
- sleeve
- display board
- presentation device
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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
Abstract
The invention provides a demonstration device for visual transmission professional teaching, and relates to the technical field of visual transmission teaching aids. A demonstration device for teaching visual transmission major comprises a box body, wherein the box body is provided with a rotating shaft and a driving motor for driving the rotating shaft to rotate, and the driving motor is in transmission connection with the rotating shaft; the rotating shaft is rotatably provided with a plurality of display boards, any display board is provided with a first locking component used for locking the display board on the rotating shaft, and the first locking component is movably connected with the rotating shaft. By adopting the invention, the demonstration device can fix a plurality of pieces of drawing paper at the same time, can show a plurality of pieces of drawing paper at the same time, is convenient to operate and improves the teaching efficiency.
Description
Technical Field
The invention relates to the technical field of visual transmission teaching aids, in particular to a demonstration device for teaching of visual transmission major.
Background
With the economic prosperity and the increasing aesthetic level of people, the flat design and the related professions are started to be started, and the professions can be collectively called visual transmission professions, namely, the idea of a designer is transmitted to other people by a visual mode. The visual transmission design is a design which is expressed and transmitted to audiences through visual media, and represents the design of the times characteristic graph of the design and rich connotation. The appearance of digital multimedia is continuously challenging and fills the traditional visual transmission mode, the extension of the current generation visual transmission design is expanded, the visual transmission gradually changes from the flattening and the staticizing of the former form to the dynamic and comprehensive directions, spans from a single medium to the multimedia, extends from a two-dimensional plane to a three-dimensional stereo and space, and more changes from the traditional printing design product to the transmission of virtual information images.
The visual transmission mainly uses characters, figures and colors as the artistic creation of basic elements, influences the emotion and concept of people with the unique artistic charm in the field of mental culture, and plays an important role in the daily life of people. Practitioners of visual communication need strong expression bases and skills, and one of the most basic ways is to think of others to express their own design ideas and ideas through hand drawing. Therefore, in the teaching process of the visual transmission specialty, the hand-drawn expression is demonstrated to the student without any exception, and when the hand-drawn expression is demonstrated, drawing paper needs to be used and fixed through a support.
The support structure that presentation device used is used in teaching of present vision transmission specialty can only fix and demonstrate the sola drawing paper, and is more troublesome when changing the drawing paper, can not demonstrate many drawing papers simultaneously moreover, has certain limitation.
Disclosure of Invention
The invention aims to provide a demonstration device for teaching of visual transmission major, which can fix a plurality of pieces of drawing paper at the same time, can show the plurality of pieces of drawing paper at the same time, is convenient to operate and improves teaching efficiency.
The embodiment of the invention is realized by the following steps:
the embodiment of the application provides a demonstration device for visual transmission professional teaching, which comprises a box body, wherein the box body is provided with a rotating shaft and a driving motor for driving the rotating shaft to rotate, and the driving motor is in transmission connection with the rotating shaft; the rotating shaft is rotatably provided with a plurality of display boards, any display board is provided with a first locking component used for locking the display board on the rotating shaft, and the first locking component is movably connected with the rotating shaft.
Further, in some embodiments of the present invention, a connecting rod and a sleeve are disposed between any one of the display boards and the rotating shaft; the sleeve is rotatably sleeved on the rotating shaft, a plurality of sleeves are arranged along the length direction of the rotating shaft, and the first locking component is arranged on the sleeve; one end of the connecting rod is connected with the sleeve, and the other end of the connecting rod is connected with the display board.
Further, in some embodiments of the present invention, the first locking component is a push-pull electromagnet, the push-pull electromagnet is disposed on the sleeve, and the push-pull electromagnet comprises a telescopic rod; the outer side wall of the rotating shaft is circumferentially provided with a plurality of locking holes matched with the telescopic rods.
Further, in some embodiments of the present invention, a clamping groove for limiting the sleeve is disposed on an outer side wall of the rotating shaft, and the sleeve is clamped into the clamping groove.
Further, in some embodiments of the present invention, the display board further comprises a clamping frame, one side of the clamping frame is hinged to one side of the display board, and the other side of the clamping frame is a free end; the clamping frame is provided with an anti-slip pad on the side wall close to the display board.
Further, in some embodiments of the present invention, the clamping frame is provided with a first connecting member, and the display board is provided with a second connecting member detachably connected to the first connecting member.
Further, in some embodiments of the present invention, the display board is slidably connected to the connecting rod; the display board is detachably connected with the connecting rod through the second locking assembly.
Further, in some embodiments of the present invention, the second locking assembly is a locking bolt; the display board is provided with a sliding sleeve, the sliding sleeve is arranged on the connecting rod in a sliding manner, and the sliding sleeve is provided with a through hole; the outer side wall of the connecting rod is provided with a plurality of screw holes matched with the locking bolts along the length direction; one end of the locking bolt penetrates through the through hole and is in threaded connection with the screw hole.
Further, in some embodiments of the present invention, the bottom of the box body is provided with a plurality of moving wheels.
Further, in some embodiments of the present invention, the box body is provided with a receiving groove for receiving the display board.
Compared with the prior art, the embodiment of the invention at least has the following advantages or beneficial effects:
the embodiment of the invention provides a demonstration device for visual transmission professional teaching, which comprises a box body, wherein the box body is provided with a rotating shaft and a driving motor for driving the rotating shaft to rotate, and the driving motor is in transmission connection with the rotating shaft; the rotating shaft is rotatably provided with a plurality of display boards, any display board is provided with a first locking component used for locking the display board on the rotating shaft, and the first locking component is movably connected with the rotating shaft.
During in-service use, place the drawing paper in each show board, when the drawing paper on the first show board of needs is used for the teaching demonstration, first locking Assembly that first show board corresponds will first show board locking in above-mentioned pivot, this moment through driving motor drive pivot rotate can, make the pivot rotate and drive first show board and rotate suitable place and demonstrate that imparts knowledge to students. Can control each show board separately through its first locking Assembly that corresponds like this, can remove each show board through driving motor drive show board alone and suitable place and demonstrate that imparts knowledge to students.
When needs use a plurality of show boards simultaneously to teach the demonstration, for example need use two show boards to teach the demonstration, with first show board drive to certain place after, the first locking Assembly that second show board corresponds this moment with second show board locking in above-mentioned pivot, pivoted pivot this moment can drive first show board and second show board simultaneously and rotate suitable place, is convenient for demonstrate many drawing papers simultaneously and teaches the demonstration. When three or four display boards are needed for teaching demonstration, the operation method is the same as above. So can fix many drawing papers simultaneously, can demonstrate many drawing papers simultaneously moreover, convenient operation improves teaching efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a front view of a play set provided by an embodiment of the present invention;
FIG. 2 is a partial cross-sectional view of a connection position of a sleeve and a rotating shaft according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a rotating shaft according to an embodiment of the present invention;
FIG. 4 is a front view of a single display board provided by an embodiment of the present invention;
fig. 5 is a front view of a display board and a clamping frame provided by an embodiment of the invention;
fig. 6 is a partial sectional view of the connecting rod and the sliding sleeve according to the embodiment of the present invention.
Icon: 1-a box body; 2-a rotating shaft; 3-driving a motor; 4-a display board; 5-a connecting rod; 6-a sleeve; 7-push-pull type electromagnet; 8, a telescopic rod; 9-a locking hole; 10-a receiving groove; 11-a clamping groove; 12-a moving wheel; 13-a snap frame; 14-a non-slip mat; 15-a first connector; 16-a second connector; 17-a locking bolt; 18-a sliding sleeve; 19-screw hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the orientations or positional relationships are only used for convenience of describing the present invention and simplifying the description, but the terms do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operate, and therefore, should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not require that the components be absolutely horizontal or vertical, but may be slightly inclined. Such as "horizontal" simply means that its orientation is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, "a plurality" represents at least 2.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Examples
Referring to fig. 1-6, fig. 1 is a front view of a demonstration apparatus according to an embodiment of the present invention; fig. 2 is a partial sectional view illustrating a coupling position of a sleeve 6 and a rotating shaft 2 according to an embodiment of the present invention; fig. 3 is a schematic structural diagram of a rotating shaft 2 according to an embodiment of the present invention; fig. 4 is a front view of a single display board 4 provided by the embodiment of the present invention; fig. 5 is a front view of the display board 4 and the clamping frame 13 according to the embodiment of the present invention; fig. 6 is a partial sectional view of the connecting rod 5 and the sliding sleeve 18 according to the embodiment of the present invention.
The embodiment provides a demonstration device for visual transmission major teaching, which comprises a box body 1, wherein the box body 1 is provided with a rotating shaft 2 and a driving motor 3 for driving the rotating shaft 2 to rotate, and the driving motor 3 is in transmission connection with the rotating shaft 2; the rotating shaft 2 is rotatably provided with a plurality of display boards 4, any one of the display boards 4 is provided with a first locking component for locking the display board 4 to the rotating shaft 2, and the first locking component is movably connected with the rotating shaft 2.
Under normal conditions, each show board 4 is vertical downwards under the effect of gravity to the homoenergetic rotates along pivot 2. During the in-service use, place the drawing paper in each show board 4, when needing the drawing paper on the first show board 4 to be used for the teaching demonstration, first locking Assembly that first show board 4 corresponds will be first show board 4 locking in above-mentioned pivot 2, this moment through driving motor 3 drive pivot 2 rotate can, make pivot 2 rotate and drive first show board 4 and rotate suitable place and demonstrate that imparts knowledge to students. Can control each show board 4 separately through its first locking Assembly that corresponds like this, can be with each show board 4 separately through driving motor 3 drive show board 4 and remove suitable place and demonstrate in imparting knowledge to students.
When needs use a plurality of show boards 4 simultaneously to demonstrate, for example need use two show boards 4 to demonstrate of imparting knowledge to students, drive first show board 4 to certain place after, the first locking subassembly that second show board 4 corresponds this moment with second show board 4 locking in above-mentioned pivot 2, pivoted pivot 2 can drive first show board 4 and second show board 4 simultaneously and rotate suitable place this moment, be convenient for demonstrate many drawing papers simultaneously and demonstrate the demonstration of imparting knowledge to students. When three or four display boards 4 are needed for teaching demonstration, the operation method is the same as above. So can fix many drawing papers simultaneously, can demonstrate many drawing papers simultaneously moreover, convenient operation improves teaching efficiency.
As shown in fig. 1-6, in some embodiments of the present invention, a connecting rod 5 and a sleeve 6 are disposed between any display board 4 and the rotating shaft 2; the sleeve 6 is rotatably sleeved on the rotating shaft 2, a plurality of sleeves 6 are arranged along the length direction of the rotating shaft 2, and the first locking component is arranged on the sleeve 6; one end of the connecting rod 5 is connected to the sleeve 6, and the other end of the connecting rod 5 is connected to the display board 4.
The invention is provided with a connecting rod 5 and a sleeve 6; the sleeve 6 is rotatably sleeved on the rotating shaft 2, so that the sleeve 6 can be locked on the rotating shaft 2 through the first locking assembly, the sleeve 6 is conveniently driven to rotate through the rotating shaft 2, and the display board 4 is further driven to rotate; and sleeve 6's setting is also convenient for sleeve 6 to rotate along pivot 2, and when its show board 4 that corresponds was not used for the demonstration, show board 4 can be vertical flagging under the effect of gravity, prevents that pivoted pivot 2 from driving its sleeve 6 that corresponds and rotates.
As shown in fig. 1-6, in some embodiments of the present invention, the first locking component is a push-pull electromagnet 7, the push-pull electromagnet 7 is disposed on the sleeve 6, and the push-pull electromagnet 7 comprises a telescopic rod 8; the outer side wall of the rotating shaft 2 is circumferentially provided with a plurality of locking holes 9 matched with the telescopic rods 8.
The push-pull electromagnet 7 comprises a coil, a movable iron core, a reset spring, a static iron core, a power supply controller and other accessories, the movable iron core and the static iron core are attracted in a long distance by the electromagnet to realize the linear reciprocating motion of the movable iron core, and in a normal state, the movable iron core extends out of the push-pull electromagnet 7 under the elastic force of the reset spring; when the push-pull electromagnet 7 is electrified, the movable iron core and the static iron core interact to enable the movable iron core to contract into the push-pull electromagnet 7, and therefore the linear reciprocating motion of the movable iron core is achieved. The telescopic rod 8 of the present embodiment corresponds to a movable iron core.
According to the invention, the first locking component is a push-pull electromagnet 7, the push-pull electromagnet 7 is arranged on the sleeve 6, and a plurality of locking holes 9 matched with the telescopic rod 8 are circumferentially arranged on the outer side wall of the rotating shaft 2. When normal state so, telescopic link 8 and locking hole 9 separation, pivot 2 did not receive telescopic link 8's joint this moment, and sleeve 6 can be in 2 free rotations in pivot.
For example when needs rotate out to first show board 4 and be used for the demonstration, the plug-type electro-magnet 7 circular telegram that first show board 4 corresponds, and in the one end of telescopic link 8 removed entering locking hole 9, pivot 2 received the joint of telescopic link 8 this moment, and sleeve 6 can not be along 2 free rotation of pivot, so pivoted pivot 2 drives sleeve 6 and rotates convenient operation together. The operation principle of each display board 4 is the same as that of fig. 1, the number of display boards 4 may be five, and four display boards 4 may be displayed.
As shown in fig. 1 to 6, in some embodiments of the present invention, a clamping groove 11 for limiting the sleeve 6 is formed on an outer side wall of the rotating shaft 2, and the sleeve 6 is clamped into the clamping groove 11.
According to the invention, the clamping groove 11 is arranged, and the sleeve 6 is clamped into the clamping groove 11. So carry on spacingly through joint groove 11 to sleeve 6, prevent that sleeve 6 from sliding in pivot 2 lateral wall.
As shown in fig. 1-6, in some embodiments of the present invention, the display device further comprises a fastening frame 13, one side of the fastening frame 13 is hinged to one side of the display board 4, and the other side of the fastening frame 13 is a free end; the clamping frame 13 is provided with a non-slip mat 14 near the side wall of the display board 4.
At the in-process that uses the drawing paper, it is indispensable to fix the drawing paper, is favorable to preventing that the drawing paper from sliding, because general work platform all presss from both sides tightly the drawing paper through the clip to can not effectually prevent that the drawing paper from sliding, the slip of a bit all can lead to the error of drawing.
According to the invention, the clamping frame 13 is arranged, one side of the clamping frame 13 is hinged with one side of the display board 4, and the other side of the clamping frame 13 is a free end; above-mentioned joint frame 13 is close to the lateral wall of above-mentioned show board 4 and is equipped with slipmat 14, so placing drawing paper in show board 4 back, can rotate joint frame 13, carries out the joint through joint frame 13 with drawing paper and fixes, and joint frame 13 is equipped with slipmat 14 moreover, and slipmat 14 and drawing paper butt increase frictional force are so convenient for fix drawing paper, prevent that drawing paper from sliding. Alternatively, the non-slip mat 14 of the present embodiment may employ a rubber mat.
In some embodiments of the present invention, as shown in fig. 1-6, the fastening frame 13 is provided with a first connector 15, and the display board 4 is provided with a second connector 16 detachably connected to the first connector 15.
The present invention is provided with a first connecting member 15 through a clamping frame 13, and the display board 4 is provided with a second connecting member 16 detachably connected with the first connecting member 15. So rotate joint frame 13 and fix the back to the drawing paper, it is fixed through interconnect between first connecting piece 15 and the second connecting piece 16, fix joint frame 13 and show board 4, increase the stability of its demonstration in-process.
Optionally, the first connecting member 15 and the second connecting member 16 of the present embodiment may employ hook and loop fasteners, magnets, etc. to facilitate connection and detachment.
As shown in fig. 1-6, in some embodiments of the present invention, the display board 4 is slidably connected to the connecting rod 5; the display device further comprises a second locking assembly for locking the display plate 4 to the connecting rod 5, and the second locking assembly is detachably connected with the display plate 4 and the connecting rod 5 respectively.
The invention is connected with the connecting rod 5 in a sliding way by arranging the display board 4; so that the display board 4 is slid along the connecting rod 5 to adjust the position of the display board 4 for demonstration. According to the invention, the second locking assemblies are arranged and detachably connected with the display board 4 and the connecting rod 5 respectively, so that after the display board 4 is slid to a proper position, the display board 4 is fixed on the connecting rod 5 by connecting the second locking assemblies with the display board 4 and the connecting rod 5 respectively.
As shown in fig. 1-6, in some embodiments of the present invention, the second locking assembly is a locking bolt 17; the display board 4 is provided with a sliding sleeve 18, the sliding sleeve 18 is slidably arranged on the connecting rod 5, and the sliding sleeve 18 is provided with a through hole; a plurality of screw holes 19 matched with the locking bolts 17 are formed on the outer side wall of the connecting rod 5 along the length direction; one end of the locking bolt 17 passes through the through hole and is screwed with the screw hole 19.
The invention sets the second locking component as the locking bolt 17; the display board 4 is provided with a sliding sleeve 18, so that the sliding sleeve 18 is fixed on the connecting rod 5 by the one end of the locking bolt 17 passing through the through hole and being in threaded connection with the screw hole 19, and the display board 4 is fixed conveniently. The sliding sleeve 18 is also provided to facilitate sliding movement of the display board 4.
As shown in fig. 1 to 6, in some embodiments of the present invention, the bottom of the case 1 is provided with a plurality of moving wheels 12. According to the invention, the box body 1 is provided with the plurality of moving wheels 12 at the bottom, so that the box body 1 can be moved conveniently through the plurality of moving wheels 12.
As shown in fig. 1 to 6, in some embodiments of the present invention, the case 1 is provided with a receiving groove 10 for receiving the display board 4. According to the invention, the containing grooves 10 are arranged, so that when the demonstration is not performed, each display board 4 is vertically downward under the action of gravity and is positioned in the containing grooves 10, and the display boards 4 are convenient to contain.
In summary, the embodiment of the present invention provides a demonstration apparatus for visual transmission professional teaching, comprising a box 1, wherein the box 1 is provided with a rotating shaft 2 and a driving motor 3 for driving the rotating shaft 2 to rotate, and the driving motor 3 is in transmission connection with the rotating shaft 2; the rotating shaft 2 is rotatably provided with a plurality of display boards 4, any one of the display boards 4 is provided with a first locking component for locking the display board 4 to the rotating shaft 2, and the first locking component is movably connected with the rotating shaft 2.
During the in-service use, place the drawing paper in each show board 4, when needing the drawing paper on the first show board 4 to be used for the teaching demonstration, first locking Assembly that first show board 4 corresponds will be first show board 4 locking in above-mentioned pivot 2, this moment through driving motor 3 drive pivot 2 rotate can, make pivot 2 rotate and drive first show board 4 and rotate suitable place and demonstrate that imparts knowledge to students. Can control each show board 4 separately through its first locking Assembly that corresponds like this, can be with each show board 4 separately through driving motor 3 drive show board 4 and remove suitable place and demonstrate in imparting knowledge to students.
When needs use a plurality of show boards 4 simultaneously to demonstrate, for example need use two show boards 4 to demonstrate of imparting knowledge to students, drive first show board 4 to certain place after, the first locking subassembly that second show board 4 corresponds this moment with second show board 4 locking in above-mentioned pivot 2, pivoted pivot 2 can drive first show board 4 and second show board 4 simultaneously and rotate suitable place this moment, be convenient for demonstrate many drawing papers simultaneously and demonstrate the demonstration of imparting knowledge to students. When three or four display boards 4 are needed for teaching demonstration, the operation method is the same as above. So can fix many drawing papers simultaneously, can demonstrate many drawing papers simultaneously moreover, convenient operation improves teaching efficiency.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a presentation device is used in teaching of visual transmission specialty which characterized in that: the box body is provided with a rotating shaft and a driving motor for driving the rotating shaft to rotate, and the driving motor is in transmission connection with the rotating shaft; the pivot is rotated and is equipped with a plurality of show boards, arbitrary the show board be equipped with be used for with the show board locking in the first locking component of pivot, first locking component with pivot swing joint.
2. A presentation device for visual communication professionally teaching according to claim 1, wherein: a connecting rod and a sleeve are arranged between any display board and the rotating shaft; the sleeve is rotatably sleeved on the rotating shaft, the plurality of sleeves are arranged along the length direction of the rotating shaft, and the first locking component is arranged on the sleeve; one end of the connecting rod is connected with the sleeve, and the other end of the connecting rod is connected with the display board.
3. A presentation device for visual communication professionally teaching according to claim 2, wherein: the first locking assembly is a push-pull electromagnet, the push-pull electromagnet is arranged on the sleeve and comprises a telescopic rod; the outer side wall circumference of pivot be equipped with a plurality of with telescopic link complex locking hole.
4. A presentation device for visual communication professionally teaching according to claim 2, wherein: the outer side wall of the rotating shaft is provided with a clamping groove used for limiting the sleeve, and the sleeve is clamped into the clamping groove.
5. A presentation device for visual communication professionally teaching according to claim 1, wherein: the display board is characterized by further comprising a clamping frame, wherein one side of the clamping frame is hinged with one side of the display board, and the other side of the clamping frame is a free end; the clamping frame is close to the lateral wall of show board is equipped with the slipmat.
6. A presentation device for visual communication professionally teaching according to claim 5, wherein: the clamping frame is provided with a first connecting piece, and the display board is provided with a second connecting piece detachably connected with the first connecting piece.
7. A presentation device for visual communication professionally teaching according to claim 1, wherein: the display board is connected with the connecting rod in a sliding manner; the display board is detachably connected with the connecting rod through the second locking assembly, and the second locking assembly is used for locking the display board to the connecting rod.
8. A presentation device for visual communication professionally teaching according to claim 7, wherein: the second locking assembly is a locking bolt; the display board is provided with a sliding sleeve, the sliding sleeve is arranged on the connecting rod in a sliding mode, and the sliding sleeve is provided with a through hole; the outer side wall of the connecting rod is provided with a plurality of screw holes matched with the locking bolts along the length direction; one end of the locking bolt penetrates through the through hole and is in threaded connection with the screw hole.
9. A presentation device for visual communication professionally teaching according to claim 1, wherein: the bottom of the box body is provided with a plurality of movable wheels.
10. A presentation device for visual communication professionally teaching according to claim 1, wherein: the box is provided with and is used for accomodating the groove of accomodating of show board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110528275.2A CN113257082A (en) | 2021-05-14 | 2021-05-14 | Presentation device is used in teaching of visual transmission specialty |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110528275.2A CN113257082A (en) | 2021-05-14 | 2021-05-14 | Presentation device is used in teaching of visual transmission specialty |
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| CN113257082A true CN113257082A (en) | 2021-08-13 |
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| CN202110528275.2A Pending CN113257082A (en) | 2021-05-14 | 2021-05-14 | Presentation device is used in teaching of visual transmission specialty |
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| CN211928808U (en) * | 2020-04-18 | 2020-11-13 | 徐州海蚨源电子科技有限公司 | Colleges and universities' teaching careers are instructed and are used show board |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20140015848A1 (en) * | 2006-03-31 | 2014-01-16 | Research In Motion Limited | Method of graphically indicating on a wireless communications device that map data is still being downloaded |
| CN208030720U (en) * | 2017-06-29 | 2018-11-02 | 西安培华学院 | Financial teaching display board |
| CN208806037U (en) * | 2018-09-03 | 2019-04-30 | 中宁县久隆物业服务有限公司 | A kind of property Show board |
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Application publication date: 20210813 |