A dynamic display device suitable for large-screen sand table deduction

Abstract

This invention relates to the field of sand table demonstration technology and discloses a dynamic display device suitable for large-screen sand table simulations, including a protective cover and a lead screw. The bottom of the protective cover is provided with an outer frame, and the inner side of the top of the outer frame has a groove whose size matches the display panel. The top of the outer frame has a slot whose size matches the protective cover, and the outer side of the top of the outer frame has a sliding groove whose size matches a magnet. A magnet is engaged at the top of the front of the outer frame, the number of magnets matching the display panel, and the size of the magnets matching the sliding groove on the outer side of the top of the outer frame. This dynamic display device suitable for large-screen sand table simulations allows the operator to move the magnets. Because the outer side of the top of the outer frame has a sliding groove whose size matches the magnet, and the inner side of the top of the outer frame has a groove whose size matches the display panel, the display panel is composed of a certain number of squares, and the display panel contains magnets that are attracted to the magnets.

Description

Technical Field

[0001] This invention relates to the field of sand table demonstration technology, specifically a dynamic display device suitable for large-screen sand table simulations. Background Technology

[0002] A sand table is a model made of sand, war game pieces, and other materials according to a certain scale, based on topographic maps, aerial photographs, or actual terrain. Sand tables can be divided into architectural sand tables, topographic sand tables, and military sand tables, etc. People can use sand tables to gain a clearer understanding of topographic data and other information, allowing them to understand macroscopic things from a microscopic perspective.

[0003] When using a sand table to display models on a large screen, although the internal terrain and models are scaled down according to a certain ratio, the micro-models displayed on the sand table are still relatively large due to the large size of the models or terrain to be displayed. Viewers need to walk around the sand table to see the demonstration. When the sand table is too large, viewers cannot see the entire sand table, and even those at a distance may not be clearly visible. Viewers need to walk around to a closer position to view it, which can be tiring and inconvenient. Furthermore, when the presenter needs to highlight a particular part of the terrain, the fixed position of the internal model after the sand table is built means that it may not be easily highlighted, requiring viewers to spend time searching for it and potentially causing them to miss some information. Additionally, some sand table models are easily damaged during demonstrations. If accidentally damaged, it requires time and money to remake and repair the sand table, potentially rendering the demonstration impossible and disrupting the work of the staff. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a dynamic display device suitable for large-screen sand table simulations. It has the advantages of facilitating viewing of the sand table model by people in different positions, highlighting important parts of the sand table model, and protecting the internal models of the sand table. It solves the problems of people needing to constantly adjust their positions to view the sand table due to its large size, the inability to highlight the model being demonstrated during the explanation of the internal models of the sand table, and the need for protection due to the fragility of the sand table.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned objectives of facilitating viewing of the sand table model by personnel in different positions, highlighting important parts of the sand table model, and protecting the internal model of the sand table, this invention provides the following technical solution: A dynamic display device suitable for sand table simulation on a large screen, comprising a protective cover and a lead screw. The bottom of the protective cover has an outer frame, and the inner side of the top of the outer frame has a groove whose size matches the display panel. The top of the outer frame has a slot whose size matches the protective cover, and the outer side of the top of the outer frame has a sliding groove whose size matches a magnet. A magnet is engaged at the top of the front of the outer frame, the number of magnets matching the display panel, and the size of the magnet matching the outer frame. The outer top of the frame is fitted with a matching groove. A support frame is fixedly connected to the bottom surface of the top of the outer frame. There are four support frames, arranged in groups of two, symmetrically distributed along the central axis of the outer frame. The size of the support frames matches the display panel. A display panel is mounted on top of the support frames. The display panel consists of a number of square blocks, and its size matches the groove on the inner side of the top of the outer frame. A magnet is installed inside the display panel. Support members are fixedly connected to the bottom of the display panel. The number and size of the support members match the display panel. The support members are cross-shaped, with their four ends located at the bottom of the display panel. At each of the four corners of the screw, a limiting block is fitted onto the outer side of the front of the lead screw. The limiting block has a threaded hole with a size matching the lead screw. There are four limiting blocks, located at both ends of the two lead screws. Two locking blocks are provided on the outer side of the middle of the lead screw. Each locking block has a through hole with a size matching the lead screw. A connecting piece is provided on the outer side of each locking block, and its inner side fits into the locking block. The size of the connecting piece matches the distance between the two lead screws. A rectangular groove with a size matching the positioning block is provided on the top right side of the connecting piece. A positioning block with a size matching the rectangular groove on the top of the connecting piece is also provided. The positioning block is fixedly connected to a telescopic rod on its left side. The size of the telescopic rod matches the distance between the positioning block and the slider. The slider is fixedly connected to a slider on its left side. The slider has a deep hole with a size matching the connecting piece inside. The top of the slider is fixedly connected to a telescopic component. The size of the telescopic component matches the distance between the slider and the positioning plate. The top of the telescopic component is fixedly connected to a positioning plate. The top of the positioning plate is provided with a rotating block, which is hinged to the positioning plate. The size of the rotating block matches the distance between the positioning plate and the wedge. The top of the rotating block is fixedly connected to a wedge. The size of the wedge matches the distance between the bottom ends of the three irregular blocks.

[0008] Preferably, the outer side of the positioning plate is fixedly connected to a connecting rod. There are three connecting rods, the size of which matches the distance between the positioning plate and the limiting ring. The three connecting rods are centrally symmetrically distributed with the wedge as the center of symmetry. The end of the connecting rod away from the positioning plate is fixedly connected to the limiting ring. The inner side of the limiting ring is provided with a small hole whose size matches the irregular block.

[0009] Preferably, the inner side of the limiting ring is provided with a shaped block, the shaped block is hinged to the limiting ring, the size of the shaped block matches the small hole opened on the inner side of the limiting ring, the number of shaped blocks is three, and the three shaped blocks are centrally symmetrically distributed with the wedge block as the center of symmetry.

[0010] Preferably, the top of the limiting block is provided with two horizontal rotating wheels, which are located on both sides of the outer frame. The outer side of the horizontal rotating wheels is provided with an annular groove of a size that matches the traction rope. Two traction ropes are provided on the outer side of the horizontal rotating wheels. One end of the traction rope is fixedly connected to the connector, and the other end is fixedly connected to the rectangular block.

[0011] Preferably, the inner side of the traction rope is provided with two longitudinal wheels, which are located on both sides of the outer frame and their size matches the distance between the two fixing blocks. The outer side of the longitudinal wheels is provided with an annular groove whose size matches the traction rope.

[0012] Preferably, a fixing block is provided on the left side of the longitudinal rotating wheel. The number of fixing blocks is four, with two fixing blocks forming a group. Each group of fixing blocks is hinged to the longitudinal rotating wheel, and the ends of the two groups of fixing blocks away from the longitudinal rotating wheel are fixedly connected to the outer frame.

[0013] Preferably, a rectangular block is fixedly connected to the end of the traction rope away from the limiting block, and the size of the rectangular block matches the rectangular groove opened inside the top of the trajectory moving block.

[0014] Preferably, a track moving block is sleeved on the outer side of the rectangular block, the track moving block is fixedly connected to the bottom of the outer frame, and a rectangular groove with a size matching the rectangular block is opened inside the top of the track moving block. A telescopic block is provided on the right side of the rectangular block, and the size of the telescopic block matches the hole opened at the top of the track moving block and the small hole opened at the bottom of the connecting block.

[0015] Preferably, a connecting block is fixedly connected to the right side of the protective cover. One end of the connecting block is fixedly connected to the protective cover, and the bottom of the other end has a small hole with a size matching that of the telescopic block.

[0016] (III) Beneficial Effects

[0017] Compared with existing technologies, the present invention provides a dynamic display device suitable for large-screen sand table simulations, which has the following beneficial effects:

[0018] 1. This dynamic display device, suitable for large-screen sand table simulations, works by having operators move magnets. The outer top of the frame has a groove matching the size of the magnet, and the inner top of the frame has a groove matching the size of the display panel. The display panel consists of a number of blocks, each containing a magnet attracted to the magnet. The number of magnets matches the number of display panels. When the operator moves the magnet, the magnetism moves the corresponding display panel, thus bringing a relatively distant display panel closer to the viewer. This is because the display panel does not fill the inner space of the top of the frame. The display panels are designed to be fully functional, allowing operators to move models from the display boards inside the sand table to any location that viewers wish to examine in detail. Since the display boards separate the models within the sand table, each panel has its own interconnected wiring. Therefore, if one part of the wiring malfunctions during a sand table demonstration, it will not affect other parts. Furthermore, under specific circumstances, operators can adjust the position of the display boards by moving magnets, allowing for arbitrary assembly of the models placed on the display boards. This enables convenient viewing of sand table models from any location while also allowing for flexible model reassembly.

[0019] 2. This dynamic display device, suitable for large-screen sand table simulations, operates by starting the first motor. The lead screw rotates under the motor's influence. Because the locking block has a through hole matching the lead screw's size, and the locking block is internally fitted with the connecting piece, the rotation of the lead screw causes the locking block to move, which in turn moves the connecting piece. When the sand table demonstrator needs to focus on explaining a specific part of the model, the connecting piece moves to the corresponding position under the lead screw's influence. At this point, the telescopic rod activates. Because the positioning block is fixedly connected to the connecting piece, and the telescopic rod is fixedly connected to the positioning block and the slider, and the slider has a deep hole matching the connecting piece's size, the slider moves to the bottom of the corresponding display panel under the action of the telescopic rod. The telescopic piece then extends upwards, causing the positioning plate, fixedly connected to the top of the telescopic piece, to move upwards. As the positioning plate moves upwards, the rotating block, wedge block, connecting rod, limiting ring, and irregularly shaped block above it also move upwards until the bottom of the support fixedly connected to the bottom of the display panel is positioned between the three irregularly shaped blocks. At this point, the rotating block... Driven by the second motor, the rotating block begins to rotate. Because the bottom of the rotating block is hinged to the positioning plate and the top is fixedly connected to the wedge, the rotation of the rotating block causes the wedge to move. Since the size of the wedge matches the bottom of the three irregularly shaped blocks, and the irregularly shaped blocks are hinged to the limiting ring, the rotation of the wedge causes the bottom of the irregularly shaped blocks to expand outwards under the pressure of the wedge. Correspondingly, the top of the irregularly shaped block moves inwards around the hinge point with the limiting ring, thus clamping the support component. As the support component is clamped, the telescopic component continues to move upwards, further clamping the support component and the component fixed to the positioning plate. The fixed-connection display panel is pushed out of its original position, thus highlighting the model displayed on the panel. When the demonstration ends or when the next part of the model needs to be demonstrated, the telescopic component retracts, allowing the support component and display panel to return to their original positions. At the same time, the rotating block begins to rotate in the reverse direction under the drive of the second motor, causing the irregular block to loosen from the support component. As the telescopic component retracts, the positioning plate and other structures above it return to their initial positions, and then move to other positions again via the lead screw and telescopic rod, thereby achieving the purpose of highlighting the internal model of the sand table being demonstrated.

[0020] 3. This dynamic display device, suitable for large-screen sand table simulations, extends outward via a telescopic block. Since the telescopic block is fixedly connected to the rectangular block, and the top of the track-moving block has a small hole matching the size of the telescopic block, and the bottom of the connecting block also has a small hole matching the size of the telescopic block, the extension of the telescopic block allows it to enter the small hole on the connecting block through the small hole on the track-moving block, thus connecting with the connecting block. Because one end of the traction rope is fixedly connected to the connecting piece and the other end is fixedly connected to the rectangular block, as the lead screw drives the connecting piece to move, the traction rope begins to move, thereby changing the traction through the horizontal and vertical rotating wheels. The direction of the tension in the traction rope causes the rectangular block to move along the trajectory of the rectangular groove inside the block, which matches the size of the rectangular block. Since the rectangular block is fixedly connected to the telescopic block, the telescopic block extends outward and connects with the connecting block. The other end of the connecting block is fixedly connected to the protective cover. Therefore, the rectangular block will move upward under the pull of the traction rope, thereby causing the connecting block and the protective cover to move upward, making the protective cover leave its initial position. While protecting the internal model of the sand table, the protective cover can also be opened to clean and maintain the internal model of the sand table, thus achieving the purpose of protecting the internal model of the sand table and quickly cleaning and maintaining it. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram showing the internal structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the display panel of the present invention;

[0024] Figure 4 This is a schematic diagram showing the bottom details of the display panel of the present invention;

[0025] Figure 5 This is a schematic diagram of the internal structure of the outer frame of the present invention;

[0026] Figure 6 This is a schematic diagram of the lifting mechanism of the present invention;

[0027] Figure 7 This is a detailed schematic diagram of the lifting mechanism of the present invention;

[0028] Figure 8 This is a front view of the protective mechanism of the present invention;

[0029] Figure 9 This is a schematic diagram showing the details of the protective mechanism of the present invention;

[0030] Figure 10 This is a schematic diagram of the overall protective mechanism of the present invention;

[0031] Figure 11 This is a detailed schematic diagram of the rectangular block in this invention;

[0032] Figure 12 This is a side view of the protective mechanism of the present invention.

[0033] In the diagram: 101, Protective cover; 102, Outer frame; 103, Magnet; 104, Support frame; 105, Display board; 106, Support component; 201, Lead screw; 202, Limiting block; 203, Locking block; 204, Connecting component; 205, Positioning block; 206, Telescopic rod; 207, Slider; 208, Telescopic component; 209, Positioning plate; 210, Rotating block; 211, Wedge block; 212, Connecting rod; 213, Limiting ring; 214, Irregular block; 301, Limiting block; 302, Horizontal rotating wheel; 303, Traction rope; 304, Longitudinal rotating wheel; 305, Fixing block; 306, Rectangular block; 307, Track moving block; 308, Telescopic block; 309, Connecting block. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1

[0036] Please see Figures 1 to 4A dynamic display device suitable for large-screen sand table simulation includes a protective cover 101, the size of which matches an outer frame 102, to protect the internal model of the sand table during display. The outer frame 102 is located at the bottom of the protective cover 101. A groove is formed on the inner side of the top of the outer frame 102, the size of which matches the display panel 105. A slot matching the size of the protective cover 101 is formed on the top of the outer frame 102, and a sliding groove matching the size of a magnet 103 is formed on the outer side of the top of the outer frame 102. The outer frame 102 defines the protective cover. The outer frame 102 includes structures such as magnets 103 and display panels 105, which are positioned and supported. Magnets 103 are snapped into the top front of the outer frame 102; the number of magnets 103 matches the number of display panels 105, and the size of the magnets 103 matches the sliding groove on the outer side of the top of the outer frame 102. The magnets 103 define the position of the display panels 105, and moving the magnets 103 can change the position of the display panels 105. Four support frames 104 are fixedly connected to the bottom surface of the top of the outer frame 102. Two sets of support frames 104 are arranged symmetrically along the central axis of the outer frame 102. The dimensions of the support frames 104 match the display panels 105, defining their positions. The display panels 105 are mounted on top of the support frames 104 and are composed of a number of square blocks. The dimensions of the display panels 105 match the grooves created on the inner side of the top of the outer frame 102. Magnets are installed inside the display panels 105, which divide the original sand table into several smaller sections. Each display panel... The display panel 105 is equipped with internal wiring. A sand table model is placed on the display panel 105 for easy demonstration. Support members 106 are fixedly connected to the bottom of the display panel 105. The number and size of the support members 106 match the display panel 105. The support members 106 are cross-shaped, with the four ends of the top of the support members 106 located at the four corners of the bottom of the display panel 105. The support members 106 provide support to the display panel 105 to prevent the model on the display panel 105 from tilting due to the unstable placement of the display panel 105 during the movement of the device, which would damage the model.

[0037] Example 2

[0038] Please see Figures 5 to 7A dynamic display device suitable for large-screen sand table simulation includes two lead screws 201. The lead screws 201 rotate under the drive of a first motor, thereby causing a matching locking block 203 to move. Limiting blocks 202 are sleeved on the outer side of the front of the lead screws 201. The limiting blocks 202 have threaded holes of the same size as the lead screws 201 inside. Four limiting blocks 202 are located at both ends of the two lead screws 201, defining the position of the lead screws 201. Two locking blocks 203 are located on the outer side of the middle of the lead screws 201. The locking blocks 203 have threaded holes of the same size as the lead screws 201 inside. 1. A matching through hole allows the locking block 203 to move under the drive of the lead screw 201, thereby changing the position of the connecting piece 204. The connecting piece 204 is located on the outer side of the locking block 203, and its inner side is fitted into the locking block 203. The size of the connecting piece 204 matches the distance between the two lead screws 201. A rectangular groove matching the size of the positioning block 205 is opened on the top of the connecting piece 204. The connecting piece 204 defines the position of the slider 207, telescopic member 208, and other structures. Driven by the locking block 203, it moves, thereby changing the position of the slider 207 and other structures and pulling the traction rope 303. A positioning block 205 is located on the top right side of the connecting piece 204 for positioning... The dimensions of block 205 match the rectangular slot on the top of connector 204, and positioning block 205 defines the position of telescopic rod 206; telescopic rod 206 is fixedly connected to the left side of positioning block 205, and the dimensions of telescopic rod 206 match the distance between positioning block 205 and slider 207. Extending telescopic rod 206 outwards can change the position of slider 207, which is fixedly connected to telescopic rod 206; slider 207 is fixedly connected to the left side of telescopic rod 206, and a deep hole with dimensions matching connector 204 is opened inside slider 207. The position of slider 207 changes under the action of telescopic rod 206, thereby changing the position of telescopic component 208; the top of slider 207... A telescopic member 208 is fixedly connected. The size of the telescopic member 208 matches the distance between the slider 207 and the positioning plate 209. The telescopic member 208 defines the position of the positioning plate 209. Extending the telescopic member 208 upwards allows the positioning plate 209 to move upwards. The top of the telescopic member 208 is fixedly connected to the positioning plate 209. The positioning plate 209 defines the position of the rotating block 210 and the connecting rod 212. The top of the positioning plate 209 is provided with a rotating block 210, which is hinged to the positioning plate 209. The size of the rotating block 210 matches the distance between the positioning plate 209 and the wedge block 211. The rotating block 210 starts to rotate under the drive of the second motor, thereby driving the wedge block 211 to rotate.A wedge 211 is fixedly connected to the top of the rotating block 210. The size of the wedge 211 matches the distance between the bottom ends of the three irregular blocks 214. The wedge 211 starts to rotate under the drive of the rotating block 210, increasing the contact area with the bottom end of the irregular block 214. This causes the bottom end of the irregular block 214 to move outward with the hinge point between the irregular block 214 and the limiting ring 213 as the fulcrum. Therefore, the top end of the irregular block 214 will contract inward, clamping the support member 106 located at the bottom of the display plate 105. A connecting rod 212 is fixedly connected to the outside of the positioning plate 209. There are three connecting rods 212, and their size matches the distance between the positioning plate 209 and the limiting ring 213. The three connecting rods 212 are centrally symmetrically distributed with the wedge 211 as the center of symmetry. The position of the limiting ring 213 is defined by the connecting rod 212; the end of the connecting rod 212 away from the positioning plate 209 is fixedly connected to the limiting ring 213. The limiting ring 213 has a small hole on its inner side that matches the size of the irregular block 214, and the limiting ring 213 defines the position of the irregular block 214; the irregular block 214 is provided on the inner side of the limiting ring 213, and the irregular block 214 is hinged to the limiting ring 213. The size of the irregular block 214 matches the small hole on the inner side of the limiting ring 213. There are three irregular blocks 214, which are centrally symmetrically distributed with the wedge block 211 as the center of symmetry. Under the action of the wedge block 211, the irregular blocks 214 start to move with the hinge point with the limiting ring 213 as the fulcrum, thereby clamping the support member 106 through the three irregular blocks 214.

[0039] Example 3

[0040] Please see Figures 8 to 12A dynamic display device suitable for large-screen sand table simulation includes a limiting block 301 that defines the position of a horizontal rotating wheel 302. Two horizontal rotating wheels 302 are located on the top of the limiting block 301, positioned on opposite sides of the outer frame 102. Each horizontal rotating wheel 302 has an annular groove on its outer side that matches the size of a traction rope 303, thus changing the direction of the force on the traction rope 303. Two traction ropes 303 are also located on the outer side of the horizontal rotating wheels 302. One end of each traction rope 303 is fixedly connected to a connector 204, and the other end is fixedly connected to a rectangular block 306. The traction ropes 303 move under the influence of the connector 204, and then... The transverse roller 302 and the longitudinal roller 304 change the direction of the force, thereby causing the rectangular block 306 to begin moving. Two longitudinal rollers 304 are located on the inner side of the traction rope 303, positioned on opposite sides of the outer frame 102. Their dimensions match the distance between the two fixed blocks 305. An annular groove matching the size of the traction rope 303 is formed on the outer side of each longitudinal roller 304, thus changing the direction of the force on the traction rope 303. Four fixed blocks 305 are located on the left side of the longitudinal roller 304, arranged in groups of two. Each group of fixed blocks 305 is hinged to the longitudinal roller 304, with the ends of the two groups of fixed blocks 305 furthest from the longitudinal roller 304 connected to the outer frame 102. A fixed connection is established, with a fixed block 305 defining the position of the longitudinal rotating wheel 304. A rectangular block 306 is fixedly connected to the end of the traction rope 303 away from the limiting block 301. The size of the rectangular block 306 matches the rectangular groove inside the top of the trajectory moving block 307. The rectangular block 306 begins to move under the action of the traction rope 303, and then, through the telescopic block 308 fixedly connected to the rectangular block 306, it drives the connecting block 309 connected to the telescopic block 308 to begin moving. The trajectory moving block 307 is sleeved on the outside of the rectangular block 306 and is fixedly connected to the bottom of the outer frame 102. The top of the trajectory moving block 307 has a rectangular groove whose size matches that of the rectangular block 306, thus defining the movement trajectory of the rectangular block 306. The position of the rectangular block 306; a telescopic block 308 is provided on the right side of the rectangular block 306. The size of the telescopic block 308 matches the hole at the top of the trajectory moving block 307 and the small hole at the bottom of the connecting block 309. The telescopic block 308 extends outward to connect with the connecting block 309. Driven by the rectangular block 306, the connecting block 309 moves upward. A connecting block 309 is fixedly connected to the right side of the protective cover 101. One end of the connecting block 309 is fixedly connected to the protective cover 101, and the bottom of the other end has a small hole with a size matching the telescopic block 308. When the connecting block 309 is connected to the telescopic block 308, it begins to move upward under the drive of the telescopic block 308, thereby causing the protective cover 101 fixedly connected to the connecting block 309 to move upward.

[0041] Example 4

[0042] Please see Figures 1 to 12A dynamic display device suitable for large-screen sand table simulation includes a protective cover 101, the size of which matches the outer frame 102, protecting the internal model of the sand table during display. The outer frame 102 is located at the bottom of the protective cover 101. A groove is formed on the inner side of the top of the outer frame 102, the size of which matches the display panel 105. A slot matching the size of the protective cover 101 is formed on the top of the outer frame 102, and a sliding groove matching the size of a magnet 103 is formed on the outer side of the top of the outer frame 102. The outer frame 102 defines the positions of the protective cover 101, magnet 103, and display panel 105, while also providing support for these structures. A magnet 103 is snapped into the top front of the outer frame 102. The number of magnets 103... Matching the display panel 105, the size of the magnet 103 matches the sliding groove opened on the outer side of the top of the outer frame 102. The magnet 103 defines the position of the display panel 105, and moving the magnet 103 can change the position of the display panel 105. A support frame 104 is fixedly connected to the bottom surface of the top of the outer frame 102. There are four support frames 104, two in a group. The two groups of support frames 104 are symmetrically distributed along the central axis of the outer frame 102. The size of the support frame 104 matches the display panel 105, and the support frame 104 defines the position of the display panel 105. The display panel 105 is set on the top of the support frame 104. The display panel 105 is composed of a certain number of square block objects. The size of the display panel 105 matches the outer frame 102. The groove on the inner side of the top of the 02 panel matches the display panel 105, which contains a magnet. The display panel 105 divides the original sand table into several small pieces, each with internal wiring. The sand table model is placed on the display panel 105 for demonstration purposes. Support members 106 are fixedly connected to the bottom of the display panel 105. The number and size of the support members 106 match the display panel 105. The support members 106 are cross-shaped, with their four ends located at the four corners of the bottom of the display panel 105. The support members 106 provide support to the display panel 105, preventing the model from tilting or being damaged during device movement due to instability of the display panel 105. (Including lead screws) 201. There are two lead screws 201. Driven by the first motor, the lead screws 201 start to rotate, thereby driving the locking blocks 203 that match their size to start moving. Limiting blocks 202 are sleeved on the outer side of the front of the lead screws 201. The limiting blocks 202 have threaded holes with sizes matching the lead screws 201 inside. There are four limiting blocks 202, located at both ends of the two lead screws 201. The limiting blocks 202 limit the position of the lead screws 201. There are two locking blocks 203 on the outer side of the middle of the lead screws 201. The locking blocks 203 have through holes with sizes matching the lead screws 201 inside. The locking blocks 203 start to move under the drive of the lead screws 201, thereby changing the position of the connecting piece 204.A connector 204 is provided on the outer side of the locking block 203. The inner side of the connector 204 is sleeved with the locking block 203. The size of the connector 204 matches the distance between the two lead screws 201. A rectangular groove with a size matching the positioning block 205 is opened on the top of the connector 204. The connector 204 defines the position of the slider 207, telescopic member 208, and other structures. Under the action of the locking block 203, it begins to move, thereby changing the position of the slider 207 and other structures and pulling the traction rope 303. A positioning block 205 is provided on the top right side of the connector 204. The size of the positioning block 205 matches the rectangular groove opened on the top of the connector 204. The positioning block 205 defines the position of the telescopic rod 206. The telescopic rod 206 is fixedly connected to the left side of the positioning block 205. 06. The size of the telescopic rod 206 matches the distance between the positioning block 205 and the slider 207. Extending the telescopic rod 206 outwards changes the position of the slider 207, which is fixedly connected to it. A slider 207 is fixedly connected to the left side of the telescopic rod 206. The slider 207 has a deep hole with a size matching that of the connecting piece 204. The slider 207 changes position under the action of the telescopic rod 206, thereby changing the position of the telescopic piece 208. A telescopic piece 208 is fixedly connected to the top of the slider 207. The size of the telescopic piece 208 matches the distance between the slider 207 and the positioning plate 209. The telescopic piece 208 defines the position of the positioning plate 209. Extending the telescopic piece 208 upwards allows the positioning plate 207 to... 9. The telescopic component 208 is fixedly connected to a positioning plate 209, which defines the position of the rotating block 210 and the connecting rod 212. A rotating block 210 is mounted on top of the positioning plate 209, hinged to the positioning plate 209. The size of the rotating block 210 matches the distance between the positioning plate 209 and the wedge block 211. Driven by the second motor, the rotating block 210 begins to rotate, thereby causing the wedge block 211 to rotate. A wedge block 211 is fixedly connected to the top of the rotating block 210. The size of the wedge block 211 matches the distance between the bottom ends of the three irregularly shaped blocks 214. Driven by the rotating block 210, the wedge block 211 begins to rotate, increasing the contact area with the bottom ends of the irregularly shaped blocks 214, thus making the bottom ends of the irregularly shaped blocks 214... The irregular block 214 moves outward with the hinge point between it and the limiting ring 213 as the fulcrum. Therefore, the top of the irregular block 214 will contract inward, clamping the support 106 located at the bottom of the display plate 105. A connecting rod 212 is fixedly connected to the outside of the positioning plate 209. There are three connecting rods 212, and their size matches the distance between the positioning plate 209 and the limiting ring 213. The three connecting rods 212 are centrally symmetrically distributed with the wedge block 211 as the center of symmetry. The connecting rods 212 limit the position of the limiting ring 213. The end of the connecting rod 212 away from the positioning plate 209 is fixedly connected to the limiting ring 213. The inner side of the limiting ring 213 has a small hole with a size matching that of the irregular block 214. The limiting ring 213 limits the position of the irregular block 214.A shaped block 214 is provided on the inner side of the limiting ring 213. The shaped block 214 is hinged to the limiting ring 213. The size of the shaped block 214 matches the small hole opened on the inner side of the limiting ring 213. There are three shaped blocks 214, which are centrally symmetrically distributed with the wedge block 211 as the center of symmetry. Under the action of the wedge block 211, the shaped blocks 214 start to move with the hinge point with the limiting ring 213 as the fulcrum, thereby clamping the support member 106 through the three shaped blocks 214. It includes a limiting block 301, which limits the position of the transverse rotating wheel 302. The top of the limiting block 301 is provided with two transverse rotating wheels 302. Two transverse rollers 302 are located on both sides of the outer frame 102. The outer side of each transverse roller 302 has an annular groove matching the size of the traction rope 303, thus changing the direction of the force on the traction rope 303. Two traction ropes 303 are installed on the outer side of the transverse rollers 302. One end of each traction rope 303 is fixedly connected to the connector 204, and the other end is fixedly connected to the rectangular block 306. The traction ropes 303 begin to move under the drive of the connector 204, and then the direction of the force is changed by the transverse rollers 302 and the longitudinal rollers 304, thereby causing the rectangular block 306 to move. A longitudinal roller 304 is installed on the inner side of each traction rope 303. There are two longitudinal rotating wheels 304, located on either side of the outer frame 102. Their dimensions match the distance between the two fixing blocks 305. An annular groove matching the size of the traction rope 303 is formed on the outer side of each longitudinal rotating wheel 304, changing the direction of the force on the traction rope 303. Four fixing blocks 305 are located on the left side of each longitudinal rotating wheel 304, arranged in groups of two. Each group of fixing blocks 305 is hinged to the longitudinal rotating wheel 304. The ends of the two groups of fixing blocks 305 furthest from the longitudinal rotating wheel 304 are fixedly connected to the outer frame 102, defining the position of the longitudinal rotating wheel 304. The traction rope 303 is furthest from the defined position. A rectangular block 306 is fixedly connected to one end of block 301. The size of the rectangular block 306 matches the rectangular groove opened inside the top of the track moving block 307. The rectangular block 306 starts to move under the action of the traction rope 303, and then the connecting block 309 connected to the telescopic block 308, which is fixedly connected to the rectangular block 306, starts to move. The track moving block 307 is sleeved on the outside of the rectangular block 306. The track moving block 307 is fixedly connected to the bottom of the outer frame 102. The top of the track moving block 307 has a rectangular groove with a size matching that of the rectangular block 306. The track moving block 307 limits the movement trajectory and position of the rectangular block 306.A telescopic block 308 is provided on the right side of the rectangular block 306. The size of the telescopic block 308 matches the hole at the top of the trajectory moving block 307 and the small hole at the bottom of the connecting block 309. The telescopic block 308 extends outward to connect with the connecting block 309, causing the connecting block 309 to move upward under the action of the rectangular block 306. A connecting block 309 is fixedly connected to the right side of the protective cover 101. One end of the connecting block 309 is fixedly connected to the protective cover 101, and the bottom of the other end has a small hole with a size matching that of the telescopic block 308. When the connecting block 309 is connected to the telescopic block 308, it begins to move upward under the action of the telescopic block 308, thereby causing the protective cover 101, which is fixedly connected to the connecting block 309, to move upward.

[0043] Working process and principle: Please refer to Figures 1 to 12A dynamic display device suitable for large-screen sand table simulations is described. Operators move magnets 103. The outer top of the outer frame 102 has a groove matching the size of the magnets 103 on its outer side, and a groove matching the size of the display panel 105 on its inner side. The display panel 105 is composed of a number of blocks, and each display panel 105 contains a magnet attracted to the magnets 103. The number of magnets 103 matches the number of display panels 105. When an operator moves the magnets 103, the magnetism of the magnets 103 causes the corresponding display panel 105 to move, thus moving the display panel 105 to a relatively distant position. Moved in front of the viewers, because the display panel 105 does not fill the internal space at the top of the outer frame 102, the operator can move the models placed on the display panel 105 inside the sand table that the viewers want to see in detail to any position. Since the display panel 105 separates the models inside the sand table, each display panel is equipped with mutually separated lines. During the sand table demonstration, if a problem occurs in one part of the lines, it will not affect other parts. At the same time, under certain circumstances, the operator can also adjust the position of the display panel 105 inside the sand table by moving the magnet 103, and arbitrarily assemble the models placed on the display panel 105 inside the sand table.When the operator starts the first motor, the lead screw 201 will begin to rotate. Since the locking block 203 has a through hole matching the size of the lead screw 201, and the locking block 203 is internally fitted with the connecting piece 204, the rotation of the lead screw 201 will cause the locking block 203 to move, thereby causing the connecting piece 204 to move. When the sand table demonstrator needs to focus on explaining a part of the model inside the sand table, the connecting piece 204 will move to the corresponding position under the action of the lead screw 201. At this time, the telescopic rod 206 will activate. Because the positioning block 205 is fixedly connected to the connecting piece 204, the telescopic rod 206 is fixedly connected to the positioning block. Block 205 and slider 207. Slider 207 has a deep hole inside that matches the size of connector 204. Therefore, slider 207 will move to the bottom of display panel 105 at the corresponding position under the action of telescopic rod 206. At this time, telescopic member 208 extends upward, causing positioning plate 209, which is fixedly connected to the top of telescopic member 208, to move upward. As positioning plate 209 moves upward, rotating block 210, wedge block 211, connecting rod 212, limiting ring 213 and irregular block 214 located above positioning plate 209 will also move upward until the bottom end of support member 106, which is fixedly connected to the bottom of display panel 105, is located at the three irregular blocks 210. At the middle position, the rotating block 210 will start to rotate under the drive of the second motor. Because the bottom of the rotating block 210 is hinged to the positioning plate 209 and the top is fixedly connected to the wedge block 211, the rotation of the rotating block 210 will drive the wedge block 211 to start moving. Since the size of the wedge block 211 matches the bottom of the three irregular blocks 214, and the irregular blocks 214 are hinged to the limiting ring 213, the rotation of the wedge block 211 will cause the bottom of the irregular blocks 214 to expand outward under the pressure of the wedge block 211. Correspondingly, the top of the irregular blocks 214 will move inward with the hinge point with the limiting ring 213 as the fulcrum, thereby clamping the support member 106. As the support member 106 is clamped, the telescopic member 208 continues to move upward, pushing the support member 106 and the display plate 105 fixedly connected to the support member 106 out of their original positions, thereby highlighting the model displayed on the display plate 105. When the demonstration ends or when the next part of the model needs to be demonstrated, the telescopic member 208 retracts, allowing the support member 106 and the display plate 105 to return to their original positions. At the same time, the rotating block 210 begins to rotate in the opposite direction under the drive of the second motor, thereby causing the irregular block 214 to release the support member 106. Then, as the telescopic member 208 retracts, the positioning plate 209 and other structures above the positioning plate 209 will return to their initial positions.The telescopic block 308 extends outwards. Since the telescopic block 308 is fixedly connected to the rectangular block 306, and the top of the track moving block 307 has a small hole matching the size of the telescopic block 308, and the bottom of the connecting block 309 has a small hole matching the size of the telescopic block 308, the extension of the telescopic block 308 will allow it to enter the small hole in the connecting block 309 through the small hole in the track moving block 307, thus connecting with the connecting block 309. Because one end of the traction rope 303 is fixedly connected to the connecting member 204 and the other end is fixedly connected to the rectangular block 306, as the lead screw 201 drives the connecting member 204 to start moving, the traction rope 303 will start moving, thereby moving through the transverse rotating wheel 302 and the longitudinal rotating wheel 306. Wheel 304 changes the direction of tension in traction rope 303, causing rectangular block 306 to move along the trajectory of rectangular groove inside block 307, whose size matches that of rectangular block 306, driven by traction rope 303. Since rectangular block 306 is fixedly connected to telescopic block 308, telescopic block 308 extends outward and connects to connecting block 309. The other end of connecting block 309 is fixedly connected to protective cover 101. Therefore, rectangular block 306 will move upward under the drive of traction rope 303, thereby driving connecting block 309 and protective cover 101 upward, causing protective cover 101 to leave its initial position. Protective cover 101 protects the model inside the sand table and also facilitates opening of protective cover 101 for cleaning and maintenance of the model inside the sand table.

[0044] In summary, this dynamic display device suitable for large-screen sand table simulations utilizes the operator's ability to move magnets 103. Because the outer side of the top of the outer frame 102 has a groove matching the size of magnets 103, and the inner side of the top of the outer frame 102 has a groove matching the size of display panels 105, and display panels 105 are composed of a certain number of blocks, each containing a magnet attracted to magnets 103, the number of magnets 103 matches the number of display panels 105. When the operator moves magnets 103, the magnetism of magnets 103 causes the corresponding display panels 105 to move, thus bringing display panels 105 from relatively distant locations to the viewer's view. Since the display panel 105 does not completely fill the internal space at the top of the outer frame 102, the operator can move the model placed on the display panel 105 inside the sand table to any position that the viewer wants to see in detail. Because the display panel 105 separates the models inside the sand table, each display panel is equipped with mutually separated wires. During the sand table demonstration, if a problem occurs in one part of the wires, it will not affect other parts. At the same time, under certain circumstances, the operator can also adjust the position of the display panel 105 inside the sand table by moving the magnet 103, and arbitrarily assemble the models placed on the display panel 105 inside the sand table. This allows for convenient viewing of the sand table model at any position, as well as arbitrary assembly of the models inside the sand table.

[0045] When the operator starts the first motor, the lead screw 201 begins to rotate. Since the locking block 203 has a through hole matching the size of the lead screw 201, and the locking block 203 is internally fitted with the connecting piece 204, the rotation of the lead screw 201 causes the locking block 203 to move, which in turn causes the connecting piece 204 to move. When the presenter needs to focus on explaining a specific part of the model inside the sand table, the connecting piece 204 moves to the corresponding position under the influence of the lead screw 201. At this time, the telescopic rod 206 is activated. Because the positioning block 205 is fixedly connected to the connecting piece 204, the telescopic rod 206 is fixedly connected to the positioning block 205 and the slider 207. The block 207 has a deep hole with a size matching that of the connector 204. Therefore, the slider 207 moves to the bottom of the display panel 105 under the action of the telescopic rod 206. At this time, the telescopic member 208 extends upward, causing the positioning plate 209, which is fixedly connected to the top of the telescopic member 208, to move upward. As the positioning plate 209 moves upward, the rotating block 210, wedge block 211, connecting rod 212, limiting ring 213, and irregularly shaped block 214 located above the positioning plate 209 also move upward until the bottom end of the support member 106, fixedly connected to the bottom of the display panel 105, is positioned in the middle of the three irregularly shaped blocks 214. At this time, the rotating block 210, driven by the second motor... The rotation begins because the bottom of the rotating block 210 is hinged to the positioning plate 209, and the top is fixedly connected to the wedge block 211. Therefore, the rotation of the rotating block 210 will cause the wedge block 211 to begin moving. Since the size of the wedge block 211 matches the bottom of the three irregular blocks 214, and the irregular blocks 214 are hinged to the limiting ring 213, the rotation of the wedge block 211 will cause the bottom of the irregular blocks 214 to expand outward under the pressure of the wedge block 211. Correspondingly, the top of the irregular blocks 214 will move inward around the hinge point with the limiting ring 213, thereby clamping the support member 106. As the support member 106 is clamped, the telescopic member 208 will continue to move upward, clamping the support member 106 and the... The display panel 105, which is fixedly connected to the support member 106, is pushed out of its original position, thereby highlighting the model displayed on the display panel 105. When the demonstration ends or when the next part of the model needs to be demonstrated, the telescopic member 208 retracts, so that the support member 106 and the display panel 105 return to their original positions. At the same time, the rotating block 210 starts to rotate in the reverse direction under the drive of the second motor, so that the irregular block 214 releases the support member 106. Then, as the telescopic member 208 retracts, the positioning plate 209 and other structures above the positioning plate 209 return to their initial positions, and then move to other positions again through the lead screw 201 and the telescopic rod 206, thereby achieving the purpose of highlighting the internal model of the sand table being demonstrated.

[0046] The telescopic block 308 extends outwards. Since the telescopic block 308 is fixedly connected to the rectangular block 306, and the top of the track moving block 307 has a small hole matching the size of the telescopic block 308, and the bottom of the connecting block 309 has a small hole matching the size of the telescopic block 308, the extension of the telescopic block 308 will allow it to enter the small hole in the connecting block 309 through the small hole in the track moving block 307, thus connecting with the connecting block 309. Because one end of the traction rope 303 is fixedly connected to the connecting member 204 and the other end is fixedly connected to the rectangular block 306, as the lead screw 201 drives the connecting member 204 to start moving, the traction rope 303 will start moving, thereby changing the tension of the traction rope 303 through the transverse rotating wheel 302 and the longitudinal rotating wheel 304. The direction causes the rectangular block 306 to move along the trajectory of the rectangular groove inside the block 307, which matches the size of the rectangular block 306, under the drive of the traction rope 303. Since the rectangular block 306 is fixedly connected to the telescopic block 308, the telescopic block 308 extends outward and connects to the connecting block 309. The other end of the connecting block 309 is fixedly connected to the protective cover 101. Therefore, the rectangular block 306 will move upward under the drive of the traction rope 303, thereby driving the connecting block 309 and the protective cover 101 to move upward, causing the protective cover 101 to leave the initial position. While protecting the internal model of the sand table, the protective cover 101 can also be opened to clean and maintain the internal model of the sand table, thereby achieving the purpose of protecting the internal model of the sand table and quickly cleaning and maintaining the internal model of the sand table.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dynamic display device suitable for large-screen sand table simulations, characterized in that: The device includes a protective cover (101) and a lead screw (201). The bottom of the protective cover (101) is provided with an outer frame (102). A magnet (103) is snapped onto the top of the front of the outer frame (102). A support frame (104) is fixedly connected to the bottom surface of the top of the outer frame (102). A display panel (105) is provided on the top of the support frame (104). There are multiple display panels (105). The bottom of the display panel (105) is fixedly connected to a support member (106), and the number and size of the support member (106) match the display panel (105). A limiting block (202) is sleeved on the outer side of the front of the lead screw (201). A locking block (203) is provided on the outer side of the middle of the lead screw (201). A connector (204) is provided on the outer side of the locking block (203). A positioning block (205) is provided on the top right side of the connector (204). A telescopic rod (206) is fixedly connected to the left side of the positioning block (205). A slider (207) is fixedly connected to the left side of the telescopic rod (206). A telescopic component (208) is fixedly connected to the top of the slider (207). A positioning plate (209) is fixedly connected to the top of the telescopic component (208). A rotating block (210) is provided on the top of the positioning plate (209). A wedge block (211) is fixedly connected to the top of the rotating block (210). A connecting rod (212) is fixedly connected to the outside of the positioning plate (209), and a limit ring (213) is fixedly connected to one end of the connecting rod (212) away from the positioning plate (209). The inner side of the limiting ring (213) is provided with irregular blocks (214), and there are three irregular blocks (214). The support member (106) is clamped by the three irregular blocks (214).

2. The dynamic display device suitable for large-screen sand table simulation according to claim 1, characterized in that: It also includes a limiting block (301), the top of which is provided with a transverse wheel (302), and the outer side of which is provided with a traction rope (303).

3. A dynamic display device suitable for large-screen sand table simulations according to claim 2, characterized in that: The inner side of the traction rope (303) is provided with a longitudinal pulley (304).

4. A dynamic display device suitable for large-screen sand table simulation according to claim 3, characterized in that: A fixing block (305) is provided on the left side of the longitudinal rotating wheel (304).

5. A dynamic display device suitable for large-screen sand table simulation according to claim 2, characterized in that: A rectangular block (306) is fixedly connected to one end of the traction rope (303) away from the limiting block (301).

6. A dynamic display device suitable for large-screen sand table simulation according to claim 5, characterized in that: A trajectory moving block (307) is sleeved on the outside of the rectangular block (306), and a telescopic block (308) is provided on the right side of the rectangular block (306).

7. A dynamic display device suitable for large-screen sand table simulation according to claim 1, characterized in that: A connecting block (309) is fixedly connected to the right side of the protective cover (101).

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