CN114863732A - Visual transmission planar design specialty teaching display device - Google Patents
Visual transmission planar design specialty teaching display device Download PDFInfo
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- CN114863732A CN114863732A CN202210519975.XA CN202210519975A CN114863732A CN 114863732 A CN114863732 A CN 114863732A CN 202210519975 A CN202210519975 A CN 202210519975A CN 114863732 A CN114863732 A CN 114863732A
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- 230000000007 visual effect Effects 0.000 title claims abstract description 36
- 230000005540 biological transmission Effects 0.000 title claims abstract description 14
- 239000004744 fabric Substances 0.000 claims abstract description 29
- 239000003086 colorant Substances 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 239000011521 glass Substances 0.000 claims description 13
- 230000000903 blocking effect Effects 0.000 claims description 8
- 230000005389 magnetism Effects 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 8
- 239000005338 frosted glass Substances 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 5
- 239000005337 ground glass Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 244000309464 bull Species 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
The invention relates to the field of visual transmission design teaching, in particular to a visual transmission plane design major teaching display device which comprises a movable base, wherein a rotating rod is movably and rotatably arranged at the top of the movable base, a base plate is fixedly sleeved on the outer wall of the rotating rod, a screen assembly is arranged on the front side wall of the base plate, a steel frame is arranged at the top of the movable base, shielding cloth is sleeved on the outer wall of the steel frame, a light ray adjusting assembly is arranged at the top of a telescopic rod, an intermediate connecting gear is arranged in an inner cavity of the movable base, a first gear and a second gear are connected to two sides of the intermediate connecting gear in a meshed mode, the first gear is sleeved on the outer wall of the rotating rod, and the second gear is sleeved on the outer wall of the bottom of the light ray adjusting assembly. According to the invention, through reasonably designing the light adjusting assembly, the shielding cloth can be unfolded, the influence of light of the external environment is reduced, different lights are emitted by the light adjusting assembly to change the background color of the curtain, and different visual effects of observing teaching objects under different background colors are realized.
Description
Technical Field
The invention relates to the field of visual transmission design teaching, in particular to a visual transmission plane design specialty teaching display device.
Background
The visual transmission design is an active behavior for transmitting specific things in a visual form, and mainly comprises the aspects of sign design, advertisement design, package design, in-and-out environment design, enterprise image design and the like. The plane design generally needs to show teaching objects such as symbols and images, and the teaching objects can be flexibly shown on a blackboard in an attraction mode through the adsorption effect of the magnets.
But current teaching display device can't satisfy under different background colors, observes the different visual effects that above-mentioned teaching article brought, leads to visual transmission planar design's teaching incomplete.
Disclosure of Invention
The invention aims to provide a visual transmission plane design professional teaching display device, which can solve the problem that the conventional teaching display device cannot change the background color to cause incomplete teaching items.
In order to achieve the above object, the present application provides a visual transmission plane design specialty teaching display device, comprising a mobile base, the top of the movable base is movably connected with a rotating rod in a switching way, the outer wall of the rotating rod is fixedly sleeved with a base plate, the front side wall of the base plate is provided with a screen component, the top of the movable base is provided with a steel frame, the outer wall of the steel frame is sleeved with shielding cloth, the shielding cloth is provided with an observation port, the observation port of the shielding cloth is provided with a shielding sleeve, the top of the telescopic rod is provided with a light ray adjusting component which consists of a light emitter emitting red, green and blue colors, the inner cavity of the movable base is provided with a middle connecting gear, the two sides of the middle connecting gear are engaged and connected with a first gear and a second gear, the first gear is sleeved on the outer wall of the rotating rod, and the second gear is sleeved on the outer wall of the bottom of the light adjusting assembly.
Optionally, the screen assembly includes a soft magnet and a curtain, the soft magnet is disposed on a side wall of the substrate, and the curtain is disposed on another side wall of the soft magnet.
Based on above-mentioned technical characteristics, in the show process, the plane of show can be according to traditional mode through soft magnet absorption on the curtain behind back installation magnet, wherein the curtain adopts white cloth.
Optionally, the light adjusting assembly comprises a shell, a connecting column, a light beam unit and light-transmitting glass, the outer wall of the connecting column is sleeved on the second gear, the shell is located at the top of the connecting column, the light beam unit is uniformly distributed on the inner cavity side wall of the shell, and the light-transmitting glass is arranged on the shell side wall opposite to the light beam unit.
Based on above-mentioned technical characteristics, the spliced pole meets with the second gear and can drives the shell body and rotate, and the light beam unit sends light and sends through printing opacity glass, provides the background light.
Optionally, the light beam unit includes three light emitting devices of red, green and blue.
Based on the technical characteristics, the red, green and blue light emitting devices emit light by rotating a proper number, and the color of the background light can be adjusted according to the principle of three primary colors of light.
Optionally, the red, green and blue light emitting devices of the light beam unit adopt LED light sources with adjustable current.
Based on the technical characteristics, the intensity of light emitted by the red, green and blue light emitting devices can be adjusted by changing the current, so that the brightness and color of the mixed background light can be flexibly changed.
Optionally, the light-transmitting glass is ground glass.
Based on the technical characteristics, the ground glass has a special structure, so that light can be subjected to diffuse reflection in the process of passing through the ground glass, and the distribution uniformity and the mixing degree of the passing light are improved.
Optionally, the bottom surface of base plate is provided with the electro-magnet, the top of moving base is provided with the protrusion magnetism hoop, the top of protrusion magnetism hoop is convex circular-arc, just the bottom of electro-magnet with the top of protrusion magnetism hoop meets.
Based on the technical characteristics, the substrate can be conveniently rotated by disconnecting the electromagnet, and the electromagnet adsorbs the magnetic iron ring to keep the substrate stable after the electromagnet is electrified.
Optionally, the shielding cloth is black opaque cloth.
Based on the technical characteristics, the light entering the shielding cloth from the outside is reduced, and the internal visual effect is influenced.
Optionally, a clamping groove is formed in the side wall of the rotating rod, and a protruding rib matched with the clamping groove is arranged at the joint of the base plate and the rotating rod.
Based on above-mentioned technical characteristics, when promoting the base plate and rotate, improve the cooperation of protruding muscle and draw-in groove, can effectively improve the synchronous rate of bull stick and base plate.
Optionally, one end of the blocking sleeve, which is far away from the blocking cloth, is provided with a rubber elastic band.
Based on the technical characteristics, when the head of the student stretches into the blocking sleeve to observe the inside, the rubber elastic band of the blocking sleeve contracts through resilience force, so that the possibility of entering of external light is reduced.
Compared with the prior art, the visual transmission plane design specialty teaching display device provided by the invention has the following beneficial effects:
1. according to the invention, through reasonable design of the light adjusting assembly, the shielding cloth can be unfolded, the influence of light of the external environment is reduced, different lights are emitted by the light adjusting assembly to change the background color of the curtain, different visual effects of observing teaching objects under different background colors are realized, and teaching items are enriched;
2. the invention can cut off the electricity of the electromagnet, can facilitate the rotation of the base plate, and after the electromagnet is electrified, the electromagnet adsorbs the magnetic iron ring to keep the stability of the base plate, thereby facilitating the observation of teaching objects under different visual angles;
3. when the curtain is rotated to adjust the observation visual angle, the rotating rod drives the base plate to rotate, the middle connecting gear meshed with the first gear rotates to drive the second gear to rotate, so that the light ray adjusting assembly and the base plate rotate in the same direction, the first gear and the second gear are kept the same, the rotating angles are also the same, the light ray adjusting assembly always irradiates the curtain at the same direct angle, and the influence on the visual effect after the deviation of the direct angle is reduced.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of a first state of the embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 3 is a cross-sectional view of the present invention in the state of FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 3 according to the present invention;
FIG. 5 is a partial cross-sectional view taken at C-C of FIG. 4 in accordance with the present invention;
fig. 6 is a partial enlarged view of fig. 3 at B according to the present invention.
Icon: 1. a movable base; 2. a rotating rod; 3. a substrate; 4. a screen assembly; 401. soft magnetic iron; 402. a curtain; 5. a steel frame; 6. a shielding cloth; 601. an observation window; 7. a light conditioning assembly; 701. an outer housing; 702. connecting columns; 703. a light beam unit; 704. a light-transmitting glass; 8. the middle is connected with a gear; 9. a first gear; 10. a second gear; 11. a blocking sleeve; 12. an electromagnet; 13. a magnetic iron ring is protruded.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all 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 application.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, the meaning of a plurality of or a plurality of is two or more unless specifically limited otherwise.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for understanding and reading the contents disclosed in the specification, and are not used for limiting the conditions that the present application can implement, so the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the technical content disclosed in the present application without affecting the efficacy and the achievable purpose of the present application. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present application, and changes or modifications in the relative relationship may be made without substantial technical changes.
The invention is described in further detail below with reference to figures 1-6.
Referring to the attached drawings of the specification, fig. 1-3, a visual transmission plane design major teaching display device comprises a movable base 1, wherein a rotating rod 2 is movably and rotatably connected to the top of the movable base 1, a base plate 3 is fixedly sleeved on the outer wall of the rotating rod 2, a screen assembly 4 is arranged on the front side wall of the base plate 3, external force is applied to two sides of the base plate 3, the base plate 2 can rotate along the rotating rod 2, and therefore the screen assembly 4 is driven to rotate. Remove base 1's top and be provided with steelframe 5, steelframe 5's outer wall has cup jointed and has sheltered from cloth 6, shelter from cloth 6 and seted up viewing aperture 601, the viewing aperture 601 department that shelters from cloth 6 is provided with spacer 11, wherein shelter from cloth 6 and adopt black opaque cloth, reduce outside light entering and shelter from the inside of cloth 6, influence inside visual effect, shelter from cloth 6 and can carry out the translation on steelframe 5, thereby realize the cover to removing base 1 top, and spacer 11 keeps away from the one end that shelters from cloth 6 and adopts the rubber elastic cord, when the student head stretches into spacer 11 and observes inside, the rubber that keeps off sleeve 11 passes through the resilience shrink, thereby reduce the possibility that external light got into. The top of telescopic link 7 is provided with light regulation subassembly 7, and light regulation subassembly 7 comprises the illuminator that sends red, green, blue three-colour, and the inner chamber of moving base 1 is provided with intermediate junction gear 8, and the both sides meshing of intermediate junction gear 8 is connected with first gear 9 and second gear 10, and first gear 9 cup joints the outer wall at bull stick 2, and second gear 10 cup joints the outer wall in light regulation subassembly 7 bottom.
Referring to fig. 4-5 of the drawings accompanying the specification, the screen assembly 4 includes a soft magnet 401 and a curtain 402, the soft magnet 401 being disposed on one side wall of the substrate 3 and the curtain 402 being disposed on the other side wall of the soft magnet 401. During the display process, the display plane can be attached to the curtain 402 through the soft magnet 401 after the magnet is installed on the back according to the conventional manner, wherein the curtain 402 is a white cloth.
Referring to the attached drawings in the specification and fig. 6, the light ray adjusting assembly 7 includes an outer casing 701, a connection column 702, a light beam unit 703 and a transparent glass 704, wherein an outer wall of the connection column 702 is sleeved on the second gear 10, the outer casing 701 is located at the top of the connection column 702, the light beam unit 703 is uniformly distributed on a sidewall of an inner cavity of the outer casing 701, and the transparent glass 704 is disposed on a sidewall of the outer casing 701 opposite to the light beam unit 703. The connection column 702 is connected to the second gear 10 to drive the outer housing 701 to rotate, and the light emitted from the light beam unit 703 is emitted through the transparent glass 704 to provide background light. The light beam unit 703 includes three light emitting devices, namely, red, green, and blue light emitting devices. The red, green and blue light emitting devices emit light by rotating a proper number, and the color of the background light can be adjusted according to the principle of three primary colors of light. The red, green and blue light emitting devices of the light beam unit 703 adopt LED light sources with adjustable current, and the intensity of light emitted by the red, green and blue light emitting devices can be adjusted by changing the current, so that the brightness and color of the mixed background light can be flexibly changed. The light-transmitting glass 704 is ground glass, and due to the special structure of the ground glass, light rays are subjected to diffuse reflection in the process of passing through the ground glass, so that the uniformity of distribution and the mixing degree of the light rays passing through the ground glass are improved.
Referring to the attached drawings of fig. 3-4, the bottom surface of the base plate 3 is provided with an electromagnet 12, the top of the moving base 1 is provided with a convex magnetic iron ring 13, the top of the convex magnetic iron ring 13 is in a convex arc shape, and the bottom of the electromagnet 12 is connected with the top of the convex magnetic iron ring 13. The substrate 3 can be conveniently rotated by turning off the electromagnet 12, and after the electromagnet 12 is powered on, the electromagnet 12 attracts the magnetic iron ring 13 to keep the substrate 3 stable.
Referring to the attached figure 5 of the specification, a clamping groove is formed in the side wall of the rotating rod 2, and a protruding rib matched with the clamping groove is arranged at the joint of the base plate 3 and the rotating rod 2. When promoting base plate 3 and rotate, improve the cooperation of protruding muscle and draw-in groove, can effectively improve the synchronous rate of bull stick 2 and base plate 3.
The working principle is as follows:
the first embodiment is as follows: referring to the attached drawings of the specification and fig. 1, the shielding cloth 6 is retracted, the screen assembly 4 on the top of the mobile base 1 is exposed, and the light adjusting assembly 7 is not powered to emit light. When carrying out the visual transmission flat design teaching, the teacher of giving lessons can place the teaching article of magnet is installed on the back on screen assembly 4's curtain 402, and this teaching article can make symbol, image etc.. Wherein can break off the electricity of electro-magnet 12, can make things convenient for base plate 3 to rotate, and after electro-magnet 12 circular telegram, electro-magnet 12 adsorbs magnetism hoop 13, keeps base plate 3's stability to convenient teaching is observed teaching article under different visual angles.
The second embodiment: referring to the attached drawings of the specification and fig. 2, the shielding cloth 6 is unfolded to completely shield the top of the mobile base 1, and the light adjusting assembly 7 is powered on to emit light. At this moment, the observer needs to put his head into the blocking sleeve 8, observe the inside through the observation opening 601, and at this moment, the light adjusting assembly 7 emits light to change the background color of the curtain 402 after irradiating the white curtain 402, so as to observe the visual effect of the teaching articles under different background colors. Wherein the same with embodiment one, the electricity of electro-magnet 12 can be broken off equally, can make things convenient for base plate 3 to rotate, after electro-magnet 12 circular telegram, electro-magnet 12 adsorbs magnetism hoop 13, keep base plate 3's stability, thereby make things convenient for the teaching to observe teaching article under different visual angles, and in this embodiment, when drive base plate 3 rotates, bull stick 2 drives first gear 9 and rotates, intermediate junction gear 8 with first gear 9 meshing rotates, thereby drive second gear 10 and rotate, thereby make light regulating component 7 and base plate 3 carry out syntropy and rotate, it is the same to keep first gear 9 and second gear 10, rotatory angle also can be the same, thereby make light regulating component 7 always shine curtain 402 with the same direct incidence angle, reduce the influence to visual effect behind the direct incidence angle emergence deviation.
Wherein the light of the light adjusting assembly 7 is emitted by the light beam unit 703, and the light beam unit 703 comprises three light emitting devices of red, green and blue. The red, green and blue light emitting devices emit light by rotating a proper number, and the color of the background light can be adjusted according to the principle of three primary colors of light. The red, green and blue light emitting devices of the light beam unit 703 adopt current-adjustable LED light sources, and the intensity of light emitted by the red, green and blue light emitting devices can be adjusted by changing the current, so that the brightness and color of the mixed background light can be flexibly changed. The light-transmitting glass 704 is ground glass, and due to the special structure of the ground glass, light rays are subjected to diffuse reflection in the process of passing through the ground glass, so that the uniformity of distribution and the mixing degree of the light rays passing through the ground glass are improved.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. The utility model provides a visual transmission planar design specialty teaching display device, includes mobile base (1), its characterized in that: the top of the movable base (1) is movably connected with a rotating rod (2), the outer wall of the rotating rod (2) is fixedly sleeved with a base plate (3), the front side wall of the base plate (3) is provided with a screen component (4), the top of the movable base (1) is provided with a steel frame (5), the outer wall of the steel frame (5) is sleeved with shielding cloth (6), the shielding cloth (6) is provided with an observation opening (601), the observation opening (601) of the shielding cloth (6) is provided with a shielding sleeve (11), the top of the telescopic rod (7) is provided with a light adjusting component (7), the light adjusting component (7) consists of light emitters emitting red, green and blue three colors, the inner cavity of the movable base (1) is provided with an intermediate connecting gear (8), and the two sides of the intermediate connecting gear (8) are engaged and connected with a first gear (9) and a second gear (10), the first gear (9) is sleeved on the outer wall of the rotating rod (2), and the second gear (10) is sleeved on the outer wall of the bottom of the light ray adjusting assembly (7).
2. A visual communication presentation device as claimed in claim 1 wherein: the screen assembly (4) comprises a soft magnet (401) and a curtain (402), wherein the soft magnet (401) is arranged on one side wall of the substrate (3), and the curtain (402) is arranged on the other side wall of the soft magnet (401).
3. A visual communication presentation device as claimed in claim 1 wherein: light regulation subassembly (7) include shell body (701), spliced pole (702), light beam unit (703) and printing opacity glass (704), the outer wall of spliced pole (702) cup joints on second gear (10), shell body (701) are located the top of spliced pole (702), light beam unit (703) evenly distributed is on the inner chamber lateral wall of shell body (701), printing opacity glass (704) set up shell body (701) lateral wall relative with light beam unit (703).
4. A visual communication presentation device as claimed in claim 3 wherein: the light beam unit (703) comprises three light emitting devices of red, green and blue.
5. The visual communication presentation device of claim 4, wherein: the red, green and blue light emitting devices of the light beam unit (703) adopt LED light sources with adjustable current.
6. A visual communication presentation device as claimed in claim 3 wherein: the light-transmitting glass (704) is frosted glass.
7. A visual communication presentation device as claimed in claim 1 wherein: the bottom surface of base plate (3) is provided with electro-magnet (12), the top of moving base (1) is provided with protrusion magnetism hoop (13), the top of protrusion magnetism hoop (13) is convex circular-arc, just the bottom of electro-magnet (12) with the top of protrusion magnetism hoop (13) meets.
8. A visual communication presentation device as claimed in claim 1 wherein: the shielding cloth (6) is made of black light-tight cloth.
9. A visual communication presentation device as claimed in claim 1 wherein: the side wall of the rotating rod (2) is provided with a clamping groove, and a protruding rib matched with the clamping groove is arranged at the joint of the base plate (3) and the rotating rod (2).
10. A visual communication presentation device as claimed in claim 1 wherein: one end of the blocking sleeve (11) far away from the blocking cloth (6) is made of a rubber elastic band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210519975.XA CN114863732B (en) | 2022-05-13 | 2022-05-13 | Visual conveying plane design specialty teaching display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210519975.XA CN114863732B (en) | 2022-05-13 | 2022-05-13 | Visual conveying plane design specialty teaching display device |
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| CN114863732A true CN114863732A (en) | 2022-08-05 |
| CN114863732B CN114863732B (en) | 2024-04-09 |
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| CN214279201U (en) * | 2021-03-02 | 2021-09-24 | 广州华夏职业学院 | Multimedia teaching device for literature theory |
| CN215649847U (en) * | 2021-07-01 | 2022-01-28 | 筑福科技(上海)有限公司 | Computer-based visual transmission design workbench |
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