Display device for science popularization vaccine working principle

Abstract

The utility model discloses a display device for the working principle of popular science vaccines. The display device comprises an exhibition stand, a display assembly and a control assembly, the top of the exhibition stand is provided with a control area and an exhibition area. The display assembly is arranged in the display area and comprises a display cabinet, the display cabinet is provided with a back plate and a top plate, a grabbing cavity is formed in the back plate and the top plate, a display module and an identification module are arranged on the back plate, a grabbing module is arranged on the top plate, and a plurality of virus models are placed in the grabbing cavity; the control assembly is arranged in the control area; the capturing task is issued through the display module, the control assembly controls the capturing module to capture the virus model, the identification module identifies the virus model and matches the identification result with the capturing task, and the display module plays the preset content according to the matching result. According to the utility model, by combining with an interactive small game, participants can know different viruses, antigens and antibodies and know immune response after human body vaccine injection, so that the enthusiasm of the participants can be fully aroused, the interactivity is strong, and the science popularization effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to demonstration teaching aid technical field, concretely relates to a display device for popular science vaccine working principle. BACKGROUND

[0002] Popular science refers to the natural science and social science knowledge that various media use in the way of being simple and easy to understand, the activity of popular science that promotes the application of science and technology, advocates scientific methods, spreads scientific thought and carries forward scientific spirit. The popular science of vaccine working principle is very necessary, so that the participants can understand different viruses, antigens and antibodies, and understand the immune response after human body injection of vaccine; reduce the fear of the public for vaccination, improve the public awareness of prevention, and thus improve the vaccination rate.

[0003] The current medical popular science method is mainly through video animation or theoretical explanation, especially in the face of ordinary people or children who lack theoretical knowledge, which is boring and lacks interaction, so it is difficult to mobilize the enthusiasm of the participants, resulting in poor popular science effect.

[0004] Therefore, an display device for assisting vaccine working principle knowledge popularization is needed, which combines some interactive games to enable the participants to understand different viruses, antigens and antibodies, and understand the immune response after human body injection of vaccine, so as to improve the interaction and display significance in the popular science process. UTILITY MODEL CONTENT

[0005] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a display device for popular science vaccine working principle, which combines interactive games to enable the participants to understand different viruses, antigens and antibodies, and understand the immune response after human body injection of vaccine, so as to fully mobilize the enthusiasm of the participants, and improve the popular science effect.

[0006] The purpose of the utility model is realized by the following technical scheme:

[0007] A display device for popular science vaccine working principle, comprising an exhibition stand, a display assembly and a control assembly;

[0008] The top of the exhibition stand is provided with a control area and a display area; the control area is arranged close to the edge of the exhibition stand;

[0009] The display assembly is arranged in the display area, and the display assembly comprises a display cabinet, the display cabinet has a back plate and a top plate, a grabbing cavity is formed in the display cabinet, a display module and an identification module are arranged on the back plate, a grabbing module is arranged on the top plate, and a plurality of virus models are placed in the grabbing cavity;

[0010] The control assembly is arranged in the operation area; the control assembly is electrically connected with the grabbing module;

[0011] The display module publishes a grabbing task, the control assembly controls the grabbing module to grab the virus model, the recognition module recognizes the grabbed virus model and matches the recognition result with the grabbing task, and the display module plays preset content according to the matching result.

[0012] In an optional embodiment, the exhibition stand is a hexagonal prism structure.

[0013] The exhibition cabinet further comprises side plates and a face plate, the side plates, the face plate, and the back plate and the top plate form a grabbing cavity in the shape of a hexagonal prism; a stand is arranged at the connection between the side plate and the face plate; the side plate and the face plate are both made of transparent material; a side door is arranged on the side plate close to the back plate.

[0014] In an optional embodiment, the bottom of the grabbing cavity is provided with a basin structure, and the basin structure has a basin bottom and inclined surfaces around the basin bottom.

[0015] In an optional embodiment, the grabbing module comprises a first sliding rail structure, a second sliding rail structure, an extension structure, and a claw structure.

[0016] The first sliding rail structure comprises a first sliding rail, a first pulley, and a first driving member, and the first sliding rail is arranged along the width direction of the exhibition cabinet.

[0017] The second sliding rail structure comprises a second sliding rail, a second pulley, and a second driving member, and the second sliding rail is arranged along the length direction of the exhibition cabinet, and the second sliding rail is connected with the first pulley; so that the second sliding rail can slide on the first sliding rail.

[0018] One end of the extension structure is connected with the second pulley; so that the extension structure can slide on the second sliding rail; the other end of the extension structure is connected with the claw structure, and the extension structure can extend or retract along the height direction of the exhibition cabinet.

[0019] The claw structure comprises at least one pair of claws and a claw driving member, and one pair of the claws is driven by the claw driving member to approach or move away from each other to realize the gripping or releasing of the claws.

[0020] The claw is internally provided with an electromagnet; the virus model is provided with a magnetic member, and when the grabbing is correct, the electromagnet is electrified to generate a magnetic force to adsorb the magnetic member on the virus model.

[0021] In an optional embodiment, the control assembly comprises an operation module, and the operation module comprises a joystick and a button.

[0022] The rocker arm is electrically connected to the first driving component and the second driving component respectively, and is used to control the sliding of the claw structure in the length and width directions of the display cabinet;

[0023] The button is electrically connected to the telescopic structure and the claw drive, and is used to control the movement of the claw structure in the height direction of the display cabinet and the gripping or releasing of the claw.

[0024] In one optional implementation, the crawling task includes a first crawling task, a second crawling task, and a third crawling task; the virus model includes a first virus model, a second virus model, and a third virus model that can be adapted to the crawling task, wherein the first virus model represents poliovirus, the second virus model represents COVID-19, and the third virus model represents smallpox virus.

[0025] In one optional implementation, the control component includes an option module electrically connected to the display module; the option module includes a turntable for selecting a grabbing task by rotating the turntable.

[0026] In one optional embodiment, a back door is provided on the back panel, and the display module includes a display screen, which is fixed to the back door by a connecting bracket.

[0027] In one optional embodiment, the display component further includes a lighting module and an audio module, both of which are electrically connected to the display module; the lighting module is disposed outside the grasping cavity and the display cabinet, and is used to provide a light source and preset lighting effects; the audio module is disposed on the surface of the display stand, and is used to provide preset sound effects.

[0028] In one optional implementation, the control area is provided with operation instructions for the displayed items in a prominent position.

[0029] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0030] This invention provides a demonstration device for popularizing the working principle of vaccines. A control module selects a grasping task, and a display module displays and publishes the results. The grasping module, controlled by a control component, grasps a virus model within a grasping chamber. After grasping, a recognition module identifies the grasped result and matches it with the grasping task. The display module then plays preset content based on the matching result. This preset content includes basic vaccine knowledge, operational reminders, recognition results, and matching results, achieving the goal of popularizing science while providing interactive entertainment. This combines science popularization with interactive entertainment, making learning fun and significantly motivating participants. It makes some dry and boring concepts and principles more easily accepted by participants, improving the effectiveness of science popularization. Furthermore, it reduces public fear of vaccination, raises public awareness of prevention, and ultimately increases vaccination rates, making it of great educational significance. Attached Figure Description

[0031] Figure 1 This is the front view of the display device of this utility model for popularizing the working principle of vaccines;

[0032] Figure 2 This is a cross-sectional view of the BB section of the display device for popularizing the working principle of vaccines according to this utility model;

[0033] Figure 3 This is a top view of the demonstration device of this utility model for popularizing the working principle of vaccines;

[0034] Figure 4 This is a schematic diagram of the grasping module of the demonstration device for popularizing the working principle of vaccines according to this utility model;

[0035] Figure 5 This is a schematic diagram of the grasping module of the demonstration device for popularizing the working principle of vaccines according to this utility model from another angle.

[0036] Figure 6 This is a partial structural schematic diagram of the demonstration device for popularizing the working principle of vaccines according to this utility model;

[0037] Figure 7 This is a cross-sectional view of section AA of the demonstration device for popularizing the working principle of vaccines according to this utility model.

[0038] In the diagram: 10. Display stand; 20. Display component; 21. Display module; 22. Grabbing module; 221. First slide rail structure; 222. Second slide rail structure; 223. Telescopic structure; 224. Claw structure; 23. Virus model; 24. Audio module; 201. Back panel; 2011. Back door; 202. Top panel; 203. Side panel; 2031. Side door; 204. Panel; 205. Column; 206. Basin-shaped structure; 30. Control component; 31. Control module; 311. Joystick; 312. Button; 32. Turntable; 33. Operating instructions. Detailed Implementation

[0039] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment are all commercially available. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0040] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0041] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0042] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0043] Example 1:

[0044] Please refer to Figures 1-7 This embodiment provides a demonstration device for popularizing the working principle of vaccines, including a display stand 10, a display component 20 and a control component 30;

[0045] The display stand 10 has a hexagonal frustum structure, consisting of a frame welded from several profiles and a surface covered by several plates, thus providing sufficient support. In this embodiment, the height of the display stand 10 is preferably 700mm. The display stand 10 is provided with a control area and a display area; the control area is located near the edge of the display stand 10 for easy operation.

[0046] The display component 20 is set in the display area. The display component 20 includes a display cabinet with a back panel 201, a side panel 203, a front panel 204 and a top panel 202. The interior forms a hexagonal prism-shaped grasping cavity. The back panel 201 is provided with a display module 21 and a recognition module. The top panel 202 is provided with a grasping module 22. Several virus models 23 are placed in the grasping cavity.

[0047] The back panel 201 has a back door 2011, and the display module 21 includes a display screen, which is fixed to the back door 2011 by a connecting bracket.

[0048] A column 205 is provided at the connection between the side panel 203 and the panel 204 to improve the support. Both the side panel 203 and the panel 204 are made of transparent material, preferably plexiglass. The display cabinet is set in a hexagonal prism shape, which is conducive to increasing the display space. A side door 2031 is provided on the side panel 203 near the back panel 201. The side door 2031 connects the grasping cavity with the external space, which facilitates the placement or removal of the virus model 23 into the grasping cavity.

[0049] Furthermore, a basin-shaped structure 206 is provided at the bottom of the grasping cavity. The basin-shaped structure 206 has a basin bottom and an inclined surface. The inclined surface is a plane or curved surface that extends from the surrounding area to the basin bottom. By setting the inclined surface, the virus model 23 in the grasping cavity rolls down and concentrates at the basin bottom under the action of gravity, so that the virus model 23 is always within the grasping range of the grasping module 22.

[0050] The gripping module 22 includes a first slide rail structure 221, a second slide rail structure 222, a telescopic structure 223, and a claw structure 224. The first slide rail structure 221 includes a first slide rail, a first pulley, and a first driving component. The first slide rail is arranged along the width direction of the display cabinet. The second slide rail structure 222 includes a second slide rail, a second pulley, and a second driving component. The second slide rail is arranged along the length direction of the display cabinet and is connected to the first pulley, allowing the second slide rail to slide on the first slide rail. One end of the telescopic structure 223 is connected to the second pulley, allowing the telescopic structure 223 to slide on the second slide rail. The other end of the telescopic structure 223 is connected to the claw structure 224, and the telescopic structure 223 can extend and retract along the height direction of the display cabinet. The claw structure 224 includes at least one pair of claws and a claw driving component. The claw driving component drives the pair of claws to move closer or further apart to achieve gripping or releasing of the claws. This causes the claw structure 224 to move in the orthogonal space within the grasping cavity and grasp the target virus model 23.

[0051] In this embodiment, the gripper is equipped with an electromagnet; the virus model is equipped with a magnetic component. When the gripper is correctly gripped, the electromagnet is energized to generate a magnetic force that attracts the magnetic component on the virus model.

[0052] In this embodiment, there are two first slide rail structures 221, which are arranged opposite each other on both sides of the top plate 202 of the display case. Correspondingly, both ends of the second slide rail structure 222 are slidably connected to the first slide rail via first pulleys, thereby improving the stability of the gripping module 22 and reducing malfunctions. In other embodiments, a slider can also be used to connect the first slide rail structure 221 or the second slide rail structure 222. Those skilled in the art can make adaptive adjustments according to the actual situation.

[0053] In some other preferred embodiments, the display component 20 further includes a lighting module and an audio module 24, both electrically connected to the display module 21. The lighting module is located outside the grasping cavity and the display case, providing a light source and preset lighting effects. The audio module 24 is located on the surface of the display stand 10, providing preset sound effects. The lighting module and audio module 24 assist the display module 21 in presenting preset content, enhancing the audiovisual effect, improving information transmission efficiency, and ultimately attracting participants' attention to improve the science popularization effect.

[0054] The control component 30 is located in the control area; the control component 30 is electrically connected to the grasping module 22. In this embodiment, the control component 30 includes a control module 31 and an option module. The control module 31 is used to control the grasping action of the grasping module 22, and the option module is used to select the grasping task.

[0055] Specifically, the control module 31 includes a joystick 311 and a button 312; the joystick 311 is electrically connected to the first driving member and the second driving member respectively, and the opening and closing of the first driving member and the second driving member are controlled by the touch effect of the joystick 311, thereby controlling the sliding of the claw structure 224 in the length and width directions of the display cabinet to reach the required grasping position.

[0056] Button 312 is electrically connected to telescopic structure 223 and claw drive component. Button 312 controls the opening and closing of telescopic structure 223 and claw drive component, thereby controlling the movement of claw structure 224 in the height direction of the display cabinet, and the gripping or releasing of claw structure 224 after it is in place, so as to grab the virus model 23. Telescopic structure 223 and claw drive component can be directly linked by timing device to achieve automatic gripping or releasing effect.

[0057] The option module is electrically connected to the display module 21; the option module includes a turntable 32, which is rotated to select a grabbing task. In this embodiment, the grabbing tasks include a first grabbing task, a second grabbing task, and a third grabbing task; correspondingly, the virus model 23 may include a first virus model, a second virus model, and a third virus model that can adapt to the grabbing tasks, to meet the virus model 23 required for different grabbing tasks. The first virus model represents poliovirus, the second virus model represents COVID-19, and the third virus model represents smallpox virus; each virus has a different appearance.

[0058] In this embodiment, the control component 30 is mounted on a ramp in the control area. The ramp is tilted at a certain angle towards the edge of the display stand to accommodate the operator's needs and improve comfort. Correspondingly, the ramp has corresponding labels and explanations for the joystick 311, button 312, and turntable 32. Operation instructions 33 for the exhibits can be prominently displayed on the ramp to help participants quickly understand the operation methods and increase their engagement.

[0059] In use, participants select a capture task by rotating the turntable 32, and the display module 21 displays and publishes the capture task. The capture task may include a preset time range, the type of virus model 23 to be captured, etc. Participants control the capture module 22 to capture the virus model 23 in the capture chamber by using the joystick 311 and button 312 within the preset time range according to the published capture task. After the capture is completed, the recognition module identifies the capture result and matches the recognition result with the capture task. The display module 21 plays preset content according to the matching result. The preset content includes basic knowledge of the vaccine, operation reminders, recognition results, matching results, etc.

[0060] The demonstration device provided in this embodiment for popularizing the working principle of vaccines is mainly based on the following principles of vaccine operation: First, the immune response generated after a vaccine is injected into the human body; the vaccine is a foreign substance to the human body, carrying antigen information that can trigger a series of immune responses; after the vaccine is discovered by antigen-presenting cells that roam throughout the body, these cells capture, engulf, digest, and process the vaccine, presenting the antigens of the vaccine on the cell surface; after the antigen information is recognized by helper T cells, the helper T cells are activated and transmit the message of the invader to other cells; B cells stimulated by the antigen are activated, and B cells proliferate and differentiate into plasma cells and memory B cells; plasma cells secrete antibodies, and memory B cells will rapidly proliferate and secrete antibodies to fight pathogens when they encounter the same antigen again; if the vaccine is a live attenuated vaccine, when the vaccine enters the cell, the killer T cells, after recognizing the invaded cell through the antigen, will secrete toxins to kill the cell. Second, the specificity of antibodies; after vaccination, the human immune system produces large Y-shaped proteins used to identify and neutralize viruses, etc., and these substances are antibodies. Antibodies have specific ends that can recognize a unique feature of a particular virus.

[0061] The following provides one method of using the display device. This method is only used to illustrate the improvement of the interactiveness and entertainment of the display device after structural improvements, thereby achieving the purpose of improving the popular science effect of vaccine working principle knowledge.

[0062] However, when no one is operating the system, display module 21 enters a standby page and plays a video explaining the basic knowledge of the corresponding vaccine. The video explains that the vaccine enters the human immune system through a syringe, activating various immune cells and forming resistance to infectious diseases. At the same time, operation prompts are displayed in the lower right corner of display module 21: touch the turntable 32, joystick 311, or button 312 to start the game, attracting participants to interact with the system.

[0063] Once the participants are in position, they can activate the turntable 32, joystick 311, or button 312. The display module 21 will then play operation prompts, specifically: "1. Rotate the turntable 32 to select a virus. 2. Operate the joystick 311 to move the robotic arm and match the antibody and virus. 3. Press the button 312 to grab the virus. Task: Grab 3 viruses within 90 seconds."

[0064] Participants begin the operation according to instructions 33. The upper left corner of display module 21 shows a 90-second countdown, and the upper right corner displays "Viruses to be caught: 3" and "Viruses you have caught: [number]." The center of the screen displays three virus images and their corresponding antibody images. The three viruses are: COVID-19 virus, polio virus, and smallpox virus. The task is displayed at the bottom of the screen: Catch 3 viruses within 90 seconds. Participants select a task using the spinning wheel 32. If the first task is COVID-19 virus, the COVID-19 virus image and its corresponding antibody image will glow white; if the second task is polio virus, the polio virus image and its corresponding antibody image will glow white; if the third task is smallpox virus, the smallpox virus image and its corresponding antibody image will glow white.

[0065] During the capture process, the captured virus pattern and the selected antibody pattern glow green, and a green "√" icon pops up in the center of the display module 21 screen, along with the operation prompt: "Antibody and virus matched successfully." When the captured virus pattern and the selected antibody pattern glow red, a red "×" icon pops up in the center of the display module 21 screen, along with the operation prompt: "Antibody and virus do not match, please capture again."

[0066] Once the task is complete, the participant will complete the corresponding grabbing task within the preset time. The display module 21 will show a task completion prompt: Congratulations, you have completed the task. Let's see how the vaccine fights the virus.

[0067] The task failed because the participant did not complete the corresponding grabbing task within the preset time. The display module 21 screen shows the task failure prompt: Time is up, you have not completed the task, the game is over. Let's see how the vaccine fights the virus.

[0068] Finally, as a reward or incentive mechanism, the display module 21 can display preset videos; specifically,

[0069] The image shows a transparent human model, through which the blue glowing veins of the immune system can be seen.

[0070] The scene shifts to the inside of the body, where immune cells monitor the surface antigens of cells and microorganisms. After recognizing viral antigens, they summon other immune cells to assist in clearing the infection and produce antibodies. Antibodies will search for, lock onto, and destroy the virus. Immune cells that have come into contact with antigens will become memory cells, forming memory and resistance.

[0071] The screen shows the virus multiplying and spreading in the human body, then switches to footage of vaccine injections, introducing the different types of vaccines. After the vaccine enters the body, immune cells recognize its antigens and begin recruiting other immune cells to produce antibodies, destroy the vaccine, and form a memory. When the actual virus enters the body, they quickly eliminate it.

[0072] The visuals show that vaccines not only provide individual immunity, but also that infectious diseases are transmitted from person to person. When most people are vaccinated, the risk of disease transmission is greatly reduced, leading to herd immunity. The visuals then use a picture-in-picture format to demonstrate the process of scientists developing vaccines and the public receiving them.

[0073] The demonstration device for popularizing the working principle of vaccines in this embodiment combines popular science work with interactive entertainment, making learning fun and greatly mobilizing the enthusiasm of participants. It makes some dry and boring concepts and principles more acceptable to participants, improves the effect of popular science, reduces public fear of vaccination, raises public awareness of prevention, and thus increases the vaccination rate. It has great learning significance.

[0074] Although only certain components and embodiments of this application have been illustrated and described, many modifications and alterations (e.g., variations in the size, dimensions, structure, shape and proportion of the various elements, installation arrangement, material use, color, orientation, etc.) will be conceived by those skilled in the art without actually departing from the scope and spirit of the claims.

[0075] Finally, it should be noted that the above embodiments are only preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A demonstration device for popularizing the working principle of vaccines, characterized in that, Includes exhibition stands, display components, and control components; The top of the booth is equipped with a control area and a display area; the control area is located near the edge of the booth. The display component is located in the display area. The display component includes a display cabinet with a back panel and a top panel. A grasping cavity is formed inside the display cabinet. A display module and a recognition module are provided on the back panel. A grasping module is provided on the top panel. Several virus models are placed inside the grasping cavity. The control component is located in the control area; the control component is electrically connected to the grasping module; The display module publishes a crawling task, the control component controls the crawling module to crawl the virus model, the identification module identifies the crawled virus model and matches the identification result with the crawling task, and the display module plays preset content based on the matching result to achieve interactive science popularization.

2. The demonstration device for popularizing the working principle of vaccines according to claim 1, characterized in that, The exhibition stand has a hexagonal frustum structure; The display cabinet also includes side panels and a front panel. The grabbing cavity formed between the side panels, the front panel, the back panel, and the top panel is hexagonal prism-shaped. A column is provided at the connection between the side panel and the front panel. Both the side panel and the front panel are made of transparent material. A side door is provided on the side panel near the back panel.

3. The demonstration device for popularizing the working principle of vaccines according to claim 2, characterized in that, The bottom of the gripping cavity is provided with a basin-shaped structure, which has a basin bottom and inclined surfaces around the basin bottom.

4. A demonstration device for popularizing the working principle of vaccines according to claim 1, characterized in that, The gripping module includes a first slide rail structure, a second slide rail structure, a telescopic structure, and a claw structure; The first slide rail structure includes a first slide rail, a first pulley and a first driving component, wherein the first slide rail is arranged along the width direction of the display cabinet; The second slide rail structure includes a second slide rail, a second pulley, and a second driving component. The second slide rail is arranged along the length of the display case and is connected to the first pulley, thereby allowing the second slide rail to slide on the first slide rail. One end of the telescopic structure is connected to the second pulley, allowing the telescopic structure to slide on the second slide rail; the other end of the telescopic structure is connected to the claw structure, allowing the telescopic structure to extend and retract along the height of the display case. The claw structure includes at least one pair of claws and a claw drive component. The claw drive component drives the claws to move closer or further apart to achieve the gripping or releasing of the claws. The claw is equipped with an electromagnet; the virus model is equipped with a magnetic component. When the correct gripping is achieved, the electromagnet is energized to generate a magnetic force that attracts the magnetic component on the virus model.

5. A demonstration device for popularizing the working principle of vaccines according to claim 4, characterized in that, The control component includes a control module, which includes a joystick and buttons; The rocker arm is electrically connected to the first driving component and the second driving component respectively, and is used to control the sliding of the claw structure in the length and width directions of the display cabinet; The button is electrically connected to the telescopic structure and the claw drive, and is used to control the movement of the claw structure in the height direction of the display cabinet and the gripping or releasing of the claw.

6. A demonstration device for popularizing the working principle of vaccines according to claim 1, characterized in that, The crawling task includes a first crawling task, a second crawling task, and a third crawling task; the virus model includes a first virus model, a second virus model, and a third virus model that can be adapted to the crawling task, wherein the first virus model represents poliovirus, the second virus model represents COVID-19, and the third virus model represents smallpoxvirus.

7. A demonstration device for popularizing the working principle of vaccines according to claim 5, characterized in that, The control component includes an option module electrically connected to the display module; the option module includes a turntable, which is rotated to select a grabbing task.

8. A demonstration device for popularizing the working principle of vaccines according to claim 1, characterized in that, The back panel has a back door, and the display module includes a display screen, which is fixed to the back door by a connecting bracket.

9. A demonstration device for popularizing the working principle of vaccines according to claim 1, characterized in that, The display component also includes a lighting module and an audio module, both of which are electrically connected to the display module. The lighting module is located outside the grasping cavity and the display cabinet and is used to provide a light source and preset lighting effects. The audio module is located on the surface of the display stand and is used to provide preset sound effects.

10. A demonstration device for popularizing the working principle of vaccines according to claim 1, characterized in that, The surface of the control area is provided with operation instructions.

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