Technical economic management simulation sand table and use method thereof

Abstract

The invention relates to the technical field of simulation sand tables, and discloses a technical economic management simulation sand table and a use method thereof, and the sand table comprises a fixed bottom plate which is placed on the ground; the display structure comprises a first display part and a second display part, the first display part comprises a sand table base arranged at the top of the fixed bottom plate, a hole is formed in the sand table base, a limiting frame plate is fixedly installed in the hole, elastic cloth is fixedly installed in the limiting frame plate, and a third fixed plate is arranged at the bottom of the limiting frame plate; 32 groups of fixed bottom blocks are fixedly mounted in the third fixed plate, electric push rods are arranged at the tops of the fixed bottom blocks, push blocks are fixedly mounted at one ends of telescopic inner rods of the electric push rods, and the tops of the push blocks are tightly attached to the bottom of the elastic cloth, so that the purpose of performing sand table simulation display on the device is achieved, and the display effect of a sand table is improved; the stereoscopic impression of sand table display is improved, students can quickly understand data changes, and the teaching understanding efficiency of the sand table is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of simulation sand tables, and in particular relates to a technical economic management simulation sand table and a method for using the same. Background Art

[0002] With the deepening of global economic integration and the rapid evolution of technology, techno-economic management has become crucial for corporate competitiveness and sustainable development. Traditional theoretical teaching struggles to fully encompass the complex and ever-changing market environment and technological challenges, while practical opportunities are often limited by resources and time.

[0003] The invention, with publication number CN114241881A, belongs to the field of teaching sand table technology and specifically relates to a simulated sand table experimental teaching aid for economics and management majors. It comprises a sand table, a base, and support columns. The bottom of the base is connected to the support columns, and the top of the base is equipped with a motor, a first mounting seat, a second mounting seat, and a rotating rod. The first mounting seat and the second mounting seat are positioned parallel to each other, and one end of the rotating rod is connected to the output end of the motor, while the other end of the rotating rod passes through the first and second mounting seats. The rotating rod is connected to one end of a housing, which is positioned between the first and second mounting seats. The sand table is positioned on top of the housing, and a fill light is positioned at the top edge of the housing. The surface of the sand table is provided with a light sensor and a screen. The back of the base houses a control room, which houses a control processing board electrically connected to the motor, light sensor, and fill light. The fill light compensates for light levels, and the rotating rod allows the sand table to be positioned horizontally or vertically, making it easier for students to view and learn.

[0004] However, the above patent still has the following problems: the visual effect of the sandbox when displaying economic data and changes still needs to be improved. When presenting complex economic data and dynamic changes, the current sandbox design may cause students to have difficulties in understanding and analyzing data due to the single visual elements and lack of interactivity. In addition, the display effect of the sandbox is limited by its physical size and layout, and it is difficult to fully and intuitively display the overall picture of economic activities. In the actual teaching process, teachers may need to flexibly adjust the height of the sandbox according to teaching needs and student height and other factors. However, the current design may lack convenience and efficiency in height adjustment, causing teachers to spend too much time and energy when adjusting the height of the sandbox, affecting teaching efficiency and students' learning experience.

[0005] In view of this, the present invention is proposed. Summary of the Invention

[0006] In order to solve the above-mentioned technical problem of poor sand table presentation, the basic concept of the technical solution adopted by the present invention is:

[0007] A technical and economic management simulation sandbox, comprising:

[0008] Fixed base plate, the fixed base plate is placed on the ground;

[0009] The display structure includes a first display part and a second display part. The first display part includes a sand table base arranged on the top of the fixed bottom plate. A hole is opened inside the sand table base, and a limit frame is fixedly installed in the hole. An elastic cloth is fixedly installed inside the limit frame. A third fixed plate is provided at the bottom of the limit frame. Thirty-two groups of fixed bottom blocks are fixedly installed inside the third fixed plate. An electric push rod is provided on the top of the fixed bottom block. A push block is fixedly installed on one end of the telescopic inner rod of the electric push rod, and the top of the push block is tightly attached to the bottom of the elastic cloth; the second display part includes a second fixed plate fixedly installed on the outer wall of the sand table base, a light baffle is fixedly installed on the top of the second fixed plate, and a group of projector shells are fixedly installed on the inner walls on both sides of the light baffle, and a group of first projection ports and a group of second projection ports are provided inside the projector shell.

[0010] As a preferred embodiment of the present invention, the first display part also includes thirty-two groups of first signal sensors fixedly installed on the bottom of the third fixed plate, eight groups of wires are fixedly installed between the thirty-two groups of first signal sensors, and a second signal sensor is fixedly installed at one end of the wire. A fourth fixed plate is provided at the bottom of the limiting frame plate, and the bottom of the second signal sensor is fixedly connected to the top of the fourth fixed plate.

[0011] As a preferred embodiment of the present invention, the second display part also includes a plastic support rod fixedly installed on the outer wall of one side of the sandbox base, one end of the plastic support rod is fixedly installed with a lighting lamp, two groups of first protective ring plates are provided at the bottom of the limiting frame plate, and a telescopic sleeve is fixedly installed between the two groups of first protective ring plates, the inner wall of one group of first protective ring plates is fixedly connected to the outer wall of the limiting frame plate, and the inner wall of the other group of first protective ring plates is fixedly connected to the outer wall of the third fixed plate.

[0012] As a preferred embodiment of the present invention, a first fixed plate is fixedly installed on the bottom of the sandbox base, a hole is opened inside the first fixed plate, a first rotating rod is fixedly installed in the hole, a group of first fixed ring plates are fixedly installed on the inner walls on both sides of the fixed base plate, the first rotating rod is arranged inside the two groups of first fixed ring plates, and a first servo motor is fixedly installed on the outer wall of one side of the fixed base plate, and the output shaft of the first servo motor is fixedly connected to one end of the first rotating rod through a coupling.

[0013] As a preferred embodiment of the present invention, a group of second rotating rods are fixedly installed on the inner walls on both sides of the fixed base plate, two groups of first auxiliary plates are arranged inside the fixed base plate, the first auxiliary plate is sleeved and installed on the outer wall of the second rotating rod, a fourth rotating rod is rotatably installed inside the first auxiliary plate, the second auxiliary plate is rotatably installed on the outer wall of the fourth rotating rod, a third rotating rod is rotatably installed inside the second auxiliary plate, and one end of the third rotating rod is fixedly connected to the outer wall of one side of the sandbox base.

[0014] As a preferred embodiment of the present invention, a fifth fixed plate is fixedly installed on the bottom of the fixed base plate, a sixth fixed plate is provided at the bottom of the fifth fixed plate, four sets of support rods with universal wheels are fixedly installed on the bottom of the sixth fixed plate, a hydraulic cylinder is fixedly installed on the bottom of the sixth fixed plate, a hydraulic push rod is fixedly installed on the bottom of the sixth fixed plate, the output end of the hydraulic cylinder is fixedly connected to one end of the telescopic inner rod of the hydraulic push rod, and the other end of the telescopic inner rod of the hydraulic push rod is fixedly connected to the bottom of the fifth fixed plate.

[0015] As a preferred embodiment of the present invention, four groups of fixed sleeves are fixedly installed on the top of the sixth fixed plate, a movable rod is slidably installed inside the fixed sleeve, one end of the movable rod is fixedly connected to the bottom of the fifth fixed plate, and a seventh fixed plate is fixedly installed on the top of the fixed bottom plate, and a dust curtain is glued and installed inside the seventh fixed plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Achieve the purpose of sand table simulation display of the device, improve the display effect of the sand table, enhance the three-dimensional sense of the sand table display, facilitate students to quickly understand the data changes, and improve the teaching efficiency of the sand table.

[0018] 2. The purpose of adjusting the angle of the sand table is achieved, which makes it easy to adjust the display angle of the sand table according to needs, facilitates students to observe the sand table, and improves the convenience of using the device.

[0019] 3. Achieve the purpose of adjusting the height of the device, facilitate teaching staff to adjust the height of the device, improve the flexibility of the device, and optimize the user experience of the device.

[0020] 4. The electric push rod pushes the push block up and down, making the elastic fabric form an undulating curve, which can intuitively display the changing trend and fluctuation of the data, enhance the realism and immersion of the simulation, help users better integrate into the simulation environment, and improve the effect of simulation training.

[0021] 5. During the simulation process, team members need to jointly observe data changes, analyze economic trends, and develop corresponding management strategies. This collaborative approach helps strengthen team cohesion and collaboration, reducing the company's training costs and improving training efficiency.

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a front view of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the present invention;

[0026] Figure 3 This is a schematic diagram of the disassembly of the limiting frame plate, the first protective ring plate and the third fixing plate of the present invention;

[0027] Figure 4 This is a schematic structural diagram of a fourth fixing plate of the present invention;

[0028] Figure 5 This is a schematic structural diagram of the first signal sensor of the present invention;

[0029] Figure 6 This is a schematic diagram of the disassembly of the sandbox base and the first fixing plate of the present invention;

[0030] Figure 7 Schematic diagram of the structure of the first servo motor of the present invention;

[0031] Figure 8 This is a schematic diagram of the installation of the first auxiliary plate and the second auxiliary plate of the present invention;

[0032] Figure 9 It is an enlarged view of part A of the present invention.

[0033] In the figure: 10, fixed base plate; 11, first fixed plate; 12, first servo motor; 13, first rotating rod; 14, first fixed ring plate; 15, sand table base; 16, second fixed plate; 17, light shield; 18, plastic support rod; 19, lighting lamp; 20, first auxiliary plate; 21, second auxiliary plate; 22, second rotating rod; 23, third rotating rod; 24, fourth rotating rod; 25, limit frame plate; 26, elastic cloth; 27, first protective ring plate; 28, telescopic sleeve; 29, third fixed plate Fixed plate; 30. Fixed bottom block; 31. Electric push rod; 32. Push block; 33. Fourth fixed plate; 34. Electric control box; 35. Adjustment button; 36. First signal sensor; 37. Electric wire; 38. Second signal sensor; 39. Fifth fixed plate; 40. Sixth fixed plate; 41. Fixed sleeve; 42. Movable rod; 43. Hydraulic cylinder; 44. Hydraulic push rod; 45. Projector housing; 46. First projection port; 47. Second projection port; 48. Seventh fixed plate; 49. Dust curtain. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0035] Example 1: A technical economic management simulation sandbox and its use method, specifically as follows Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 and Figure 9As shown, it includes a fixed base plate 10, which is placed on the ground; a display structure, which includes a first display part and a second display part. The first display part includes a sand table base 15 arranged on the top of the fixed base plate 10, and an opening is opened inside the sand table base 15. A limit frame plate 25 is fixedly installed in the hole, and an elastic cloth 26 is fixedly installed inside the limit frame plate 25. A third fixed plate 29 is provided at the bottom of the limit frame plate 25, and thirty-two groups of fixed bottom blocks 30 are fixedly installed inside the third fixed plate 29. A motorized push rod 31 is mounted on top of the fixed base block 30. A push block 32 is fixedly mounted on one end of the telescopic inner rod of the push rod 31. The top of the push block 32 is in close contact with the bottom of the elastic fabric 26. The second display section includes a second fixed plate 16 fixed to the outer wall of the sand table base 15. A light shield 17 is fixedly mounted on top of the second fixed plate 16. A projector housing 45 is fixedly mounted on each inner wall of the light shield 17. The projector housing 45 has a first projection port 46 and a second projection port 47 disposed within it. This display structure fully demonstrates data changes. Pressing the adjustment button 35 inside the electric control box 34 controls the movement of the electric push rod 31, which drives the push block 32 to move up and down. The push block 32 pushes the elastic fabric 26, and the movement of the thirty-two groups of electric push rods 31 is controlled to form an undulating curve between the thirty-two groups of push blocks 32, so that the elastic fabric 26 presents an undulating visual effect, and an image is projected onto the surface of the elastic fabric 26 through the first projection port 46 and the second projection port 47.

[0036] Specific as Figure 1 、 Figure 3 、 Figure 4 and Figure 5 As shown, the first display section also includes thirty-two sets of first signal sensors 36 fixedly mounted on the bottom of the third fixing plate 29. Eight sets of wires 37 are fixedly mounted between the thirty-two sets of first signal sensors 36. One end of the wires 37 is fixedly mounted to a second signal sensor 38. A fourth fixing plate 33 is provided at the bottom of the limit frame 25. The bottom of the second signal sensor 38 is fixedly connected to the top of the fourth fixing plate 33. Control information is transmitted through the first signal sensors 36, the wires 37, and the second signal sensors 38.

[0037] Specific as Figure 1 、 Figure 3 、 Figure 4 and Figure 5 As shown, the first display portion further includes eight sets of electric control boxes 34 fixedly mounted on the outer wall of one side of the fourth fixing plate 33. Four sets of adjustment buttons 35 are provided inside the electric control boxes 34, for a total of thirty-two sets of adjustment buttons 35. Each set of electric push rods 31 corresponds to a set of adjustment buttons 35, and the electric push rods 31 are electrically connected to the adjustment buttons 35. Pressing the adjustment buttons 35 controls the electric push rods 31.

[0038] Specific as Figure 1 、 Figure 2 、 Figure 3 and Figure 7 As shown, the second display section also includes a plastic support rod 18 fixedly mounted on the outer wall of one side of the sand table base 15. A lighting lamp 19 is fixedly mounted on one end of the plastic support rod 18. Two sets of first protective ring plates 27 are provided at the bottom of the limiting frame plate 25. A telescopic sleeve 28 is fixedly mounted between the two sets of first protective ring plates 27. The inner wall of one set of first protective ring plates 27 is fixedly connected to the outer wall of the limiting frame plate 25, and the inner wall of the other set of first protective ring plates 27 is fixedly connected to the outer wall of the third fixing plate 29. The plastic support rod 18 fixes the lighting lamp 19, which provides auxiliary lighting for the elastic fabric 26. The first protective ring plates 27 and telescopic sleeve 28 connect and protect the limiting frame plate 25 and the third fixing plate 29.

[0039] According to the above conclusions, by fixing the bottom plate 10, the sand table base 15, the second fixed plate 16, the light blocking plate 17, the plastic support rod 18, the lighting lamp 19, the limit frame plate 25, the elastic cloth 26, the first protective ring plate 27, the telescopic sleeve 28, the third fixed plate 29, the fixed bottom block 30, the electric push rod 31, the push block 32, the fourth fixed plate 33, the electric control box 34, the adjustment button 35, the first signal sensor 36, the wire 37 and the second signal sensor 38, the purpose of performing a sand table simulation display of the device is achieved, the display effect of the sand table is improved, the three-dimensional sense of the sand table display is improved, students are facilitated to quickly understand the data changes, and the teaching and understanding efficiency of the sand table is improved.

[0040] Example 2: Based on Example 1, the specific example is as follows Figure 1 、 Figure 2 、 Figure 6 and Figure 7 As shown, a first fixed plate 11 is fixedly mounted on the bottom of the sandbox base 15. A hole is defined within the first fixed plate 11, and a first rotating rod 13 is fixedly mounted within the hole. A set of first fixed ring plates 14 are fixedly mounted on the inner walls of both sides of the fixed base 10. The first rotating rod 13 is disposed within the two sets of first fixed ring plates 14. A first servo motor 12 is fixedly mounted on the outer wall of one side of the fixed base 10. The output shaft of the first servo motor 12 is fixedly connected to one end of the first rotating rod 13 via a coupling. When the first servo motor 12 is activated, the first rotating rod 13 rotates between the two sets of first fixed ring plates 14, driving the sandbox base 15 to rotate about the first rotating rod 13.

[0041] Specific as Figure 1 、 Figure 7 and Figure 8As shown, a set of second rotating rods 22 are fixedly mounted on the inner walls of both sides of the fixed base plate 10. Two sets of first auxiliary plates 20 are disposed inside the fixed base plate 10. The first auxiliary plates 20 are sleeved and mounted on the outer walls of the second rotating rods 22. A fourth rotating rod 24 is rotatably mounted inside the first auxiliary plates 20. A second auxiliary plate 21 is rotatably mounted on the outer wall of the fourth rotating rod 24. A third rotating rod 23 is rotatably mounted inside the second auxiliary plate 21. One end of the third rotating rod 23 is fixedly connected to the outer wall of one side of the sandbox base 15. The fourth rotating rod 24 drives the second auxiliary plate 21 to hinge and rotate on the first auxiliary plate 20, providing auxiliary support for the sandbox base 15.

[0042] According to the above conclusions, by fixing the bottom plate 10, the first fixed plate 11, the first servo motor 12, the first rotating rod 13, the first fixed ring plate 14, the sand table base 15, the first auxiliary plate 20, the second auxiliary plate 21, the second rotating rod 22 and the fourth rotating rod 24, the purpose of adjusting the angle of the sand table is achieved, which is convenient for adjusting the display angle of the sand table according to needs, facilitating students to observe the sand table, and improving the convenience of using the device.

[0043] Example 3: Based on Example 1 and Example 2, the specific example is as follows Figure 1 and Figure 2 As shown, a fifth fixing plate 39 is fixedly mounted to the bottom of the fixed base plate 10. A sixth fixing plate 40 is disposed at the bottom of the fifth fixing plate 39. Four sets of support rods with universal wheels are fixedly mounted to the bottom of the sixth fixing plate 40. A hydraulic cylinder 43 is fixedly mounted to the bottom of the sixth fixing plate 40. A hydraulic push rod 44 is fixedly mounted to the bottom of the sixth fixing plate 40. The output end of the hydraulic cylinder 43 is fixedly connected to one end of the telescopic inner rod of the hydraulic push rod 44, and the other end of the telescopic inner rod of the hydraulic push rod 44 is fixedly connected to the bottom of the fifth fixing plate 39. Activating the hydraulic cylinder 43 drives the hydraulic push rod 44 to move, adjusting the height of the fifth fixing plate 39.

[0044] Specific as Figure 1 and Figure 2 As shown, four sets of fixed sleeves 41 are fixedly mounted on the top of the sixth fixed plate 40. A movable rod 42 is slidably mounted inside the fixed sleeves 41. One end of the movable rod 42 is fixedly connected to the bottom of the fifth fixed plate 39. A seventh fixed plate 48 is fixedly mounted on the top of the fixed base plate 10. A dust curtain 49 is adhesively mounted inside the seventh fixed plate 48. When the fifth fixed plate 39 moves, it drives the movable rod 42 to slide inside the fixed sleeves 41, providing auxiliary support for the fifth fixed plate 39. The dust curtain 49 is fixed via the seventh fixed plate 48, and the dust curtain 49 shields one side of the sandbox base 15.

[0045] To sum up, through the structure of the fifth fixing plate 39, the sixth fixing plate 40, the fixing sleeve 41, the movable rod 42, the hydraulic cylinder 43, the hydraulic push rod 44, the projector housing 45, the first projection port 46, the second projection port 47, the seventh fixing plate 48 and the dust curtain 49, the purpose of adjusting the height of the device is achieved, which is convenient for teaching staff to adjust the height of the device, improves the flexibility of the device, and optimizes the user experience of the device.

[0046] Working Principle: The fixed base plate 10 is placed firmly on the ground, serving as the foundation for the entire simulated sand table. The sand table base 15 is located on top of the fixed base plate 10. An internal opening is provided, and a limit frame 25 and elastic fabric 26 are installed. These are used to visually display data changes. The push block 32 is pushed up and down by the telescopic inner rod of the electric push rod 31. The push block 32 is pressed against the bottom of the elastic fabric 26, forming an undulating curve that simulates data changes. Thirty-two sets of electric push rods 31 can be independently controlled and operated via adjustment buttons 35 within the electrical control box 34. A first signal sensor 36, wires 37, and a second signal sensor 38 are responsible for transmitting control information. The projector housing 45 on the light shield 17 has built-in first and second projection ports 46 and 47, which project images onto the surface of the elastic fabric 26 to enhance the display effect. The plastic support rod 18 fixes the lighting lamp 19 to provide auxiliary lighting for the elastic cloth 26. By starting the first servo motor 12, the first rotating rod 13 is driven to rotate, so that the sand table base 15 rotates with the first rotating rod 13 as the axis to facilitate all-round observation. The auxiliary support structure composed of the second rotating rod 22, the first auxiliary plate 20, the second auxiliary plate 21 and the third rotating rod 23 enhances the stability of the sand table base 15. The hydraulic cylinder 43 drives the hydraulic push rod 44 to move and adjust the height of the fifth fixed plate 39 (and the entire sand table structure) to adapt to different usage scenarios. The movable rod 42 slides in the fixed sleeve 41 to assist in supporting the movement of the fifth fixed plate 39. The seventh fixed plate 48 fixes the dust curtain 49 to block one side of the sand table base 15 to prevent dust from entering and keep the sand table clean. The first protective ring plate 27 and the telescopic sleeve 28 connect and protect the limit frame plate 25 and the third fixed plate 29 to enhance structural stability.

[0047] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0048] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0049] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0050] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Various modifications and variations are readily apparent to those skilled in the art. Any modifications, equivalent substitutions, improvements, and the like made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention. It should be noted that similar reference numerals and letters denote similar items in the following figures. Therefore, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

Claims

1. A technical economic management simulation sandbox, characterized by: include: Fixed base plate, the fixed base plate is placed on the ground; The display structure includes a first display part and a second display part. The first display part includes a sand table base arranged on the top of the fixed bottom plate. A hole is opened inside the sand table base, and a limit frame is fixedly installed in the hole. An elastic cloth is fixedly installed inside the limit frame. A third fixed plate is provided at the bottom of the limit frame. Thirty-two groups of fixed bottom blocks are fixedly installed inside the third fixed plate. An electric push rod is provided on the top of the fixed bottom block. A push block is fixedly installed on one end of the telescopic inner rod of the electric push rod, and the top of the push block is tightly attached to the bottom of the elastic cloth; the second display part includes a second fixed plate fixedly installed on the outer wall of the sand table base, a light baffle is fixedly installed on the top of the second fixed plate, and a group of projector shells are fixedly installed on the inner walls on both sides of the light baffle, and a group of first projection ports and a group of second projection ports are provided inside the projector shell.

2. The technical economic management simulation sandbox according to claim 1 is characterized in that: The first display part also includes thirty-two groups of first signal sensors fixedly installed on the bottom of the third fixed plate, eight groups of wires are fixedly installed between the thirty-two groups of first signal sensors, and a second signal sensor is fixedly installed at one end of the wire. A fourth fixed plate is provided at the bottom of the limit frame plate, and the bottom of the second signal sensor is fixedly connected to the top of the fourth fixed plate.

3. The technical economic management simulation sandbox according to claim 1 is characterized in that: The first display part also includes eight groups of electric control boxes fixedly installed on the outer wall of one side of the fourth fixed plate. Four groups of adjustment buttons are arranged inside the electric control boxes, totaling thirty-two groups of adjustment buttons. Each group of electric push rods corresponds to a group of adjustment buttons, and the electric push rods are electrically connected to the adjustment buttons.

4. The technical economic management simulation sandbox according to claim 1 is characterized in that: The second display part also includes a plastic support rod fixedly installed on the outer wall of one side of the sandbox base, one end of the plastic support rod is fixedly installed with a lighting lamp, two groups of first protective ring plates are provided at the bottom of the limit frame plate, and a telescopic sleeve is fixedly installed between the two groups of first protective ring plates. The inner wall of one group of first protective ring plates is fixedly connected to the outer wall of the limit frame plate, and the inner wall of the other group of first protective ring plates is fixedly connected to the outer wall of the third fixed plate.

5. The technical economic management simulation sandbox according to claim 1 is characterized in that: A first fixed plate is fixedly installed at the bottom of the sandbox base, a hole is opened inside the first fixed plate, a first rotating rod is fixedly installed in the hole, a group of first fixed ring plates are fixedly installed on the inner walls of both sides of the fixed base plate, the first rotating rod is arranged inside the two groups of first fixed ring plates, and a first servo motor is fixedly installed on the outer wall of one side of the fixed base plate, and the output shaft of the first servo motor is fixedly connected to one end of the first rotating rod through a coupling.

6. The technical economic management simulation sandbox according to claim 1 is characterized in that: A group of second rotating rods are fixedly installed on the inner walls of both sides of the fixed base plate, two groups of first auxiliary plates are arranged inside the fixed base plate, the first auxiliary plate is sleeved and installed on the outer wall of the second rotating rod, a fourth rotating rod is rotatably installed inside the first auxiliary plate, the second auxiliary plate is rotatably installed on the outer wall of the fourth rotating rod, and a third rotating rod is rotatably installed inside the second auxiliary plate, and one end of the third rotating rod is fixedly connected to the outer wall of one side of the sandbox base.

7. The technical economic management simulation sandbox according to claim 1 is characterized in that: A fifth fixed plate is fixedly installed on the bottom of the fixed base plate, a sixth fixed plate is provided at the bottom of the fifth fixed plate, four groups of support rods with universal wheels are fixedly installed on the bottom of the sixth fixed plate, a hydraulic cylinder is fixedly installed on the bottom of the sixth fixed plate, a hydraulic push rod is fixedly installed on the bottom of the sixth fixed plate, the output end of the hydraulic cylinder is fixedly connected to one end of the telescopic inner rod of the hydraulic push rod, and the other end of the telescopic inner rod of the hydraulic push rod is fixedly connected to the bottom of the fifth fixed plate.

8. The technical economic management simulation sandbox according to claim 7 is characterized in that: Four groups of fixed sleeves are fixedly installed on the top of the sixth fixed plate, and a movable rod is slidably installed inside the fixed sleeve. One end of the movable rod is fixedly connected to the bottom of the fifth fixed plate. A seventh fixed plate is fixedly installed on the top of the fixed bottom plate, and a dust curtain is glued and installed inside the seventh fixed plate.

9. A method for using a technical economic management simulation sandbox, the specific steps are as follows: The first step is to push the sixth fixed plate, and drive the support rod of the universal wheel through the bottom of the sixth fixed plate to push the device, start the hydraulic cylinder, drive the hydraulic push rod to move, and drive the movable rod to move inside the fixed sleeve to adjust the height of the fifth fixed plate; In the second step, the first servo motor is started to drive the first rotating rod to rotate inside the two sets of first fixed ring plates, driving the sand table base to rotate inside the fixed bottom plate with the first rotating rod as the axis. The second auxiliary plate is driven by the fourth rotating rod to rotate hingedly on the first auxiliary plate to provide auxiliary support for the sand table base. In the third step, a 3D image formed by the data is projected onto the elastic fabric through the first projection port and the second projection port, and a lighting lamp is supported by the plastic support rod, and the lighting lamp is activated to provide auxiliary lighting to the surface of the elastic fabric; The fourth step is to press the adjustment button to control the electric push rod. The electric push rod moves, driving the push block upward, and pushing the elastic fabric through the push block. The thirty-two groups of electric push rods are controlled to move, so that an undulating curve is formed between the thirty-two groups of push blocks, so that the elastic fabric shows an undulating visual effect. The control signal of the adjustment button is transmitted through the first signal sensor, the wire and the second signal sensor.

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