A sandbox physical simulation experiment push-over device

Abstract

The application discloses a sand box physical simulation experiment pushing and covering device and relates to the technical field of fold thrust belt simulation. The application comprises a sand box, a silica gel pad is fixedly installed in the sand box, first threaded rods are connected to the bottom of the silica gel pad, the first threaded rods are threadedly connected to the inside of first threaded cylinders, the first threaded cylinders are rotatably installed in the sand box, first connecting blocks are fixedly installed on the two sides of the first threaded rods, the first connecting blocks are slidably connected to first guide rods, and the first guide rods are fixedly installed on the bottom surface of the sand box. The application simulates horizontal force by driving the cylinder to push the plate, silica gel strips on the two sides of the plate enhance sealing, the surface friction threads increase friction force, the pushing and covering are more real, a plurality of first threaded assemblies cooperate with a first motor to adjust the two sides of the bottom of the silica gel pad, second threaded assemblies cooperate with a second motor to assist in simulating stratum deformation, a third motor adjusts the angle of the sand box, and all the components cooperate to provide reliable experimental conditions for research.

Description

Technical Field

[0001] This invention belongs to the field of folded fracture zone simulation technology, and more specifically, it relates to a sand box physical simulation experiment push-over device. Background Technology

[0002] The sandbox physical simulation thrust-nappe apparatus is a key experimental device in the field of geological structural research, specifically designed to simulate the formation process of thrust-nappe structures. This apparatus utilizes a sophisticated mechanical transmission system to apply stable and controllable horizontal compressive stress to carefully arranged model materials within the sandbox. During the experiment, it can highly realistically reproduce the complex dynamic changes of strata under thrusting, including strata bending deformation, the gradual development of faults, and the complete process of tectonic evolution. This provides geologists with an intuitive and reliable experimental platform for in-depth research into the genesis and evolutionary laws of thrust-nappe structures.

[0003] Traditional sandbox simulation devices have significant limitations: their extrusion method is singular, and the base angle is fixed and cannot be changed. This makes it difficult to explore the impact of different extrusion convergence directions and base geometry properties, such as slope and topography, on the wedge-shaped deformation of the simulated material during sandbox model simulation. Furthermore, traditional methods often involve spreading sand and gravel flat inside the sandbox for extrusion, which fails to realistically simulate the complex, uneven conditions encountered in real-world environments. Summary of the Invention

[0004] In view of the problems in related technologies, the present invention proposes a sand box physical simulation experiment pushing device to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a sand box physical simulation experiment pushover device. This device is specifically designed for experiments such as geological structure simulation, and can accurately simulate the pushover process, providing a reliable experimental platform for related research. Its main structure includes a sand box, inside which a silicone pad is fixedly installed. The silicone pad has good flexibility and elasticity, effectively simulating formation deformation. First threaded rods are attached to both sides of the bottom of the silicone pad. The first threaded rods are threaded into the interior of a first threaded cylinder, which is rotatably mounted inside the sand box. The relative rotation of the first threaded cylinder and the first threaded rods allows for the adjustment of the bottom sides of the silicone pad. First connecting blocks are fixedly installed on both sides of the first threaded rods, and these connecting blocks are slidably connected to a first guide rod. The first guide rod guides the movement of the first connecting blocks, ensuring their stability. The first guide rod is fixedly installed on the inner bottom surface of the sand box. A push plate is provided on one side of the sand box, which applies a pushing force to the simulated formation inside the sand box, simulating the pushover effect. The push plate is rotatably mounted on the connector via a transmission mechanism. The connector is fixedly mounted with the output end of a drive cylinder. The drive cylinder is fixedly mounted on the sand box. The drive cylinder can push the connector, thereby driving the push plate to move.

[0006] Furthermore, multiple first threaded cylinders and first threaded rods are provided. Each of the multiple first threaded cylinders is fixedly equipped with a first worm gear, and each of the multiple first worm gears meshes with a first worm. The first worm is rotatably mounted inside the sand box. The rotation of the first worm drives the multiple first worm gears to rotate synchronously, thereby achieving synchronous rotation of the multiple first threaded cylinders and making the adjustment on both sides of the bottom of the silicone pad more uniform. One end of the first worm is fixedly equipped with the output end of a first motor, which is fixedly mounted on the sand box and provides power for the rotation of the first worm.

[0007] Furthermore, silicone strips are fixedly installed on both sides of the push plate. These silicone strips increase the seal between the push plate and the inner wall of the sand box, preventing leakage of the simulated formation material. The surface of the push plate is provided with friction threads, which increase the friction between the push plate and the simulated formation material, making the pushing process more realistic. The push plate is made of stainless steel, which is corrosion-resistant and has high strength, ensuring the service life and stability of the push plate.

[0008] Furthermore, the transmission mechanism includes a connecting rod fixedly mounted on the push plate. The connecting rod is rotatably mounted on a connecting member, allowing it to rotate on the connecting member to achieve the rotation function of the push plate. A second worm gear is fixedly mounted on the rotating shaft of the connecting rod. The second worm gear meshes with a second worm. Rotation of the second worm can drive the second worm gear to rotate, thereby driving the connecting rod to rotate. The output end of a second motor is fixedly mounted on the second worm. The second motor is fixedly mounted on the connecting member, providing power for the rotation of the second worm, thereby controlling the rotation angle of the push plate.

[0009] Furthermore, a second threaded rod is fitted and connected to the center of the bottom of the silicone pad. This second threaded rod is threaded into the interior of a second threaded cylinder, which is rotatably mounted inside the sand box. The relative rotation of the second threaded cylinder and the second threaded rod allows for adjustment of the center position of the silicone pad's bottom. Second connecting blocks are fixedly mounted on both sides of the second threaded rod. These connecting blocks are slidably connected to a second guide rod, which guides the movement of the connecting blocks, ensuring their stability. The second guide rod is fixedly mounted on the inner bottom surface of the sand box.

[0010] Furthermore, the sand box is rotatably mounted between two fixed blocks, which are fixedly mounted on the worktable, providing support for the rotation of the sand box. A groove is formed on the surface of the worktable to provide space for the subsequent movement of the sliding block.

[0011] Furthermore, a third threaded rod is rotatably mounted inside the slide groove, and a sliding block is threadedly connected to the third threaded rod. Rotation of the third threaded rod causes the sliding block to move within the slide groove. One end of a rod is rotatably mounted on the sliding block, and the other end of the rod is rotatably mounted on the bottom of the sand box. Movement of the sliding block causes the sand box to rotate via the rod, thus adjusting the angle of the sand box. The output end of a third motor is fixedly mounted on one end of the third threaded rod, providing power for the rotation of the third threaded rod.

[0012] Furthermore, the sand box is made of a transparent material, which facilitates observation of the deformation of the simulated strata inside. The surface of the sand box is marked with graduations, allowing for easy measurement of the deformation of the simulated strata. A support rod is fixedly installed at the bottom of the worktable, providing support and ensuring the stability of the entire device.

[0013] Compared with the prior art, the present invention has the following advantages: 1. This sand box physical simulation pushing device can accurately simulate the geological pushing process. A drive cylinder pushes a push plate to simulate horizontal force. Silicone strips on both sides of the push plate enhance sealing, and surface friction threads increase friction, making the pushing process more realistic. Multiple first threaded cylinders and first threaded rods, in conjunction with a first motor, can uniformly and stably adjust both sides of the bottom of the silicone pad. Second threaded rods and second threaded cylinders, in conjunction with a second motor, further assist the silicone pad in simulating stratum deformation. A third motor drives a third threaded rod to rotate, achieving sand box angle adjustment and simulating pushing conditions under different geological conditions. All components work together to provide reliable experimental conditions for related research.

[0014] 2. This device is easy to observe and measure, providing a superior user experience. The sand box is made of transparent material, allowing clear observation of the deformation of the simulated strata during the experiment. The surface of the sand box is marked with graduations, facilitating accurate measurement of the deformation of the simulated strata and helping researchers obtain precise data. Simultaneously, a support rod is fixedly installed at the bottom of the workbench, providing stable support and ensuring the stability of the entire device during the experiment. This reduces interference from external factors and improves the accuracy of the experimental results.

[0015] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is an exploded view of part of the structure of the present invention; Figure 4 This is a schematic diagram of the push plate of the present invention; Figure 5 This is an enlarged schematic diagram of point A in the present invention; Figure 6 This is a schematic diagram of some parts of the present invention.

[0018] The attached diagram lists the components represented by each number as follows: 1. Sand box; 2. Silicone pad; 3. First threaded rod; 4. First threaded cylinder; 5. First connecting block; 6. First guide rod; 7. Push plate; 8. Connecting piece; 9. Drive cylinder; 10. First worm gear; 11. First worm; 12. First motor; 13. Friction thread; 14. Connecting rod; 15. Second worm gear; 16. Second worm; 17. Second motor; 18. Second threaded rod; 19. Second threaded cylinder; 20. Second connecting block; 21. Second guide rod; 22. Fixing block; 23. Worktable; 24. Slide groove; 25. Third threaded rod; 26. Sliding block; 27. Rod; 28. Third motor; 29. ​​Scale line; 30. Support rod; 31. Third worm gear; 32. Third worm; 33. Fourth motor. Detailed Implementation

[0019] The technical solutions of the embodiments of the invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the invention.

[0020] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the invention.

[0021] Please see Figures 1-6As shown, this invention is a sand box physical simulation experiment pushover device. This device can accurately simulate the geological pushover process and provide reliable experimental conditions for related research. Its main structure includes a sand box 1, inside which a silicone pad 2 is fixedly installed. The silicone pad 2 is soft and elastic, effectively simulating the deformation characteristics of the strata. First threaded rods 3 are attached to both sides of the bottom of the silicone pad 2. The first threaded rods 3 are threadedly connected to the inside of a first threaded cylinder 4. Through the threaded engagement, the first threaded rods 3 can extend and retract. The first threaded cylinder 4 is rotatably installed inside the sand box 1, providing rotational support for the extension and retraction of the first threaded rods 3. First connecting blocks 5 are fixedly installed on both sides of the first threaded rods 3. The first connecting blocks 5 are slidably connected to a first guide rod 6, which is fixedly installed on the inner bottom surface of the sand box 1. The first guide rod 6 guides the sliding of the first connecting blocks 5, ensuring the stability of the first threaded rods 3 during extension and retraction. A push plate 7 is provided on one side of the sand box 1. The push plate 7 is used to apply a pushing force to the simulated strata inside the sand box 1, simulating the pushover effect. The push plate 7 is rotatably mounted on the connector 8 via a transmission mechanism. The connector 8 is fixedly mounted with the output end of the drive cylinder 9. The drive cylinder 9 is fixedly mounted on the sand box 1. The drive cylinder 9 can push the connector 8, thereby driving the push plate 7 to move.

[0022] The working principle of the sand box physical simulation experiment push-over device proposed in this invention is as follows: when conducting the sand box physical simulation experiment, the prepared sand and gravel and other simulated stratum materials are first uniformly added into the interior of the sand box 1, so that it is laid on top of the silicone pad 2 to construct the simulated initial state of the stratum.

[0023] After the sand and gravel are laid, the drive cylinder 9 is activated. The output end of the drive cylinder 9 extends, pushing the connecting piece 8, which is fixedly connected to it, to move towards the inside of the sand box 1. Since the push plate 7 is rotatably mounted on the connecting piece 8 through the transmission mechanism, the movement of the connecting piece 8 will drive the push plate 7 to move closer to the simulated strata inside the sand box 1, thereby applying a thrust to the simulated strata and simulating the horizontal force on the strata during geological overburden.

[0024] Simultaneously, the first threaded cylinder 4 is rotated. Because the first threaded rod 3 is threaded inside the first threaded cylinder 4, and the first connecting blocks 5 on both sides of the first threaded rod 3 are slidably connected to the first guide rod 6 fixed to the bottom surface inside the sand box 1, the first threaded rod 3 will extend and retract along the first threaded cylinder 4 when the first threaded cylinder 4 rotates. When the first threaded rod 3 extends and retracts, it will push up or pull the bottom sides of the silicone pad 2. The silicone pad 2 is soft and elastic, and can deform with the action of the first threaded rod 3, simulating the deformation characteristics of the strata caused by uneven force during the pushover process.

[0025] By using the horizontal thrust of the push plate 7 on the simulated strata and the deformation of the silicone pad 2, the geological thrust process is accurately simulated, providing reliable experimental conditions for related research.

[0026] In one embodiment, for the aforementioned first threaded cylinder 4, in order to achieve more uniform and stable adjustment on both sides of the bottom of the silicone pad 2, multiple first threaded cylinders 4 and first threaded rods 3 are provided. Each of the multiple first threaded cylinders 4 is fixedly mounted with a first worm gear 10, and each of the multiple first worm gears 10 meshes with a first worm 11, which is rotatably mounted inside the sand box 1. When the first worm 11 rotates, it can drive the multiple first worm gears 10 to rotate synchronously, thereby causing the multiple first threaded cylinders 4 to rotate synchronously, achieving synchronous lifting and lowering of both sides of the bottom of the silicone pad 2. One end of the first worm 11 is fixedly mounted with the output end of a first motor 12, which is fixedly mounted on the sand box 1, providing power for the rotation of the first worm 11.

[0027] In one embodiment, for the pusher plate 7, to enhance the sealing between the pusher plate 7 and the inner wall of the sand box 1 and prevent leakage of the simulated formation material, silicone strips are fixedly installed on both sides of the pusher plate 7. Simultaneously, the surface of the pusher plate 7 is provided with friction threads 13, which increase the friction between the pusher plate 7 and the simulated formation material, making the pushing process more realistic. Furthermore, the pusher plate 7 is made of stainless steel, which is corrosion-resistant and has high strength, ensuring the service life and stability of the pusher plate 7.

[0028] In one embodiment, the transmission mechanism includes a connecting rod 14 fixedly mounted on the push plate 7 and rotatably mounted on a connecting member 8. The connecting rod 14 can rotate on the connecting member 8 to realize the rotation function of the push plate 7. A second worm gear 15 is fixedly mounted on the rotation shaft of the connecting rod 14. The second worm gear 15 meshes with a second worm 16. The rotation of the second worm 16 can drive the second worm gear 15 to rotate, thereby driving the connecting rod 14 to rotate. The output end of a second motor 17 is fixedly mounted on the second worm 16. The second motor 17 is fixedly mounted on the connecting member 8 and provides power for the rotation of the second worm 16, thereby controlling the rotation angle of the push plate 7.

[0029] In one embodiment, for the aforementioned silicone pad 2, to more comprehensively simulate the deformation of the formation, a second threaded rod 18 is attached to the middle position of the bottom of the silicone pad 2. The second threaded rod 18 is threadedly connected to the inside of a second threaded cylinder 19, and the second threaded rod 18 can be extended or retracted by rotating the second threaded cylinder 19. The second threaded cylinder 19 is rotatably installed inside the sand box 1, providing rotational support for the extension and retraction of the second threaded rod 18. Second connecting blocks 20 are fixedly installed on both sides of the second threaded rod 18, and the second connecting blocks 20 are slidably connected to a second guide rod 21. The second guide rod 21 is fixedly installed on the inner bottom surface of the sand box 1, and the second guide rod 21 provides guidance for the sliding of the second connecting blocks 20, ensuring the stability of the second threaded rod 18 during extension and retraction.

[0030] In one embodiment, for the sand box 1, in order to adjust the angle of the sand box 1 to simulate the overburden situation under different geological conditions, the sand box 1 is rotatably mounted between two fixed blocks 22. The two fixed blocks 22 are fixedly mounted on the worktable 23, and the fixed blocks 22 provide support for the rotation of the sand box 1. The surface of the worktable 23 is provided with a sliding groove 24, which provides space for the movement of subsequent sliding components.

[0031] In one embodiment, a third threaded rod 25 is rotatably mounted inside the slide groove 24. The third threaded rod 25 is threadedly connected to a sliding block 26. When the third threaded rod 25 rotates, it can drive the sliding block 26 to move within the slide groove 24. One end of a rod 27 is rotatably mounted on the sliding block 26, and the other end of the rod 27 is rotatably mounted on the bottom of the sand box 1. The movement of the sliding block 26 can drive the sand box 1 to rotate via the rod 27, thereby adjusting the angle of the sand box 1. The output end of a third motor 28 is fixedly mounted on one end of the third threaded rod 25, and the third motor 28 provides power for the rotation of the third threaded rod 25.

[0032] In one embodiment, the sand box 1 is made of a transparent material to facilitate observation of the deformation of the simulated strata within it. The surface of the sand box 1 is also provided with graduation lines 29, which facilitate the measurement of the deformation of the simulated strata. A support rod 30 is fixedly installed at the bottom of the worktable 23, providing support for the worktable 23 and ensuring the stability of the entire device.

[0033] The working principle of the sand box physical simulation experiment push-over device proposed in this invention is as follows: when conducting the sand box physical simulation experiment, sand and gravel and other simulated strata materials are first uniformly added into the sand box 1, so that they are laid on top of the silicone pad 2 to construct the initial state of the simulated strata.

[0034] Next, the drive cylinder 9 is activated, and its output pushes the connecting piece 8 towards the interior of the sand box 1. Since the push plate 7 is rotatably mounted on the connecting piece 8 via the connecting rod 14, the movement of the connecting piece 8 causes the push plate 7 to approach the simulated formation within the sand box 1, applying a thrust to the simulated formation and simulating the horizontal force during geological overburdening. Simultaneously, the silicone strips on both sides of the push plate 7 enhance the seal against the inner wall of the sand box 1, preventing leakage of the simulated formation material. The friction threads 13 on the surface of the push plate 7 increase the friction between it and the simulated formation material, making the overburdening process more realistic. Furthermore, the push plate 7 is made of stainless steel to ensure its service life and stability.

[0035] To achieve uniform and stable adjustment of the bottom sides of the silicone pad 2, multiple first threaded cylinders 4 and first threaded rods 3 are present. Each of the multiple first threaded cylinders 4 is fixedly equipped with a first worm gear 10, which meshes with a first worm 11 rotatably installed inside the sand box 1. When the first motor 12 is started, its output drives the first worm 11 to rotate, which in turn drives the multiple first worm gears 10 to rotate synchronously, thereby causing the multiple first threaded cylinders 4 to rotate synchronously. The first threaded rod 3 is threadedly connected inside the first threaded cylinder 4, and the first connecting blocks 5 on both sides of the first threaded rod 3 are slidably connected to a first guide rod 6 fixed to the bottom surface inside the sand box 1. When the first threaded cylinder 4 rotates, the first threaded rod 3 extends and retracts along the first threaded cylinder 4, lifting or pulling the bottom sides of the silicone pad 2, causing the silicone pad 2 to deform, simulating the deformation characteristics of the formation due to uneven force during the overburden process.

[0036] To more comprehensively simulate formation deformation, a second threaded rod 18 is attached to the center of the bottom of the silicone pad 2. The second threaded rod 18 is threaded into the interior of a second threaded cylinder 19, which is rotatably installed inside the sand box 1. Starting the fourth motor 337 drives the third worm gear 32 and the third worm wheel 31 to rotate, thereby causing the second threaded cylinder 19 to rotate, which in turn causes the second threaded rod 18 to extend and retract. Second connecting blocks 20 on both sides of the second threaded rod 18 are slidably connected to a second guide rod 21 fixed to the bottom surface inside the sand box 1, ensuring the stability of the second threaded rod 18 during extension and retraction, further assisting the silicone pad 2 in simulating formation deformation.

[0037] To adjust the angle of sand box 1 and simulate thrusting under different geological conditions, sand box 1 is rotatably mounted between two fixed blocks 22 fixed on the worktable 23, which provide support for the rotation of sand box 1. A third threaded rod 25 is rotatably mounted in a groove 24 on the surface of the worktable 23, and a sliding block 26 is threadedly connected to the third threaded rod 25. When the third motor 28 is started, its output drives the third threaded rod 25 to rotate, which in turn moves the sliding block 26 within the groove 24. The sliding block 26 is rotatably connected to the bottom of sand box 1 via a rod 27. The movement of the sliding block 26, through the rod 27, drives the rotation of sand box 1, thus adjusting the angle of sand box 1.

[0038] Furthermore, the sand box 1 is made of transparent material, facilitating observation of the deformation of the simulated strata inside. The scale lines 29 on the surface of the sand box 1 make it easy to measure the deformation of the simulated strata. The support rod 30 at the bottom of the worktable 23 provides support for the worktable 23, ensuring the stability of the entire device. Through the coordinated work of these components, the geological thrusting process is accurately simulated, providing reliable experimental conditions for related research.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The preferred embodiments of the invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. The embodiments selected and specifically described in this specification are intended to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A sand box physical simulation experiment pushing device, comprising a sand box (1), characterized in that: A silicone pad (2) is fixedly installed inside the sand box (1). A first threaded rod (3) is attached to both sides of the bottom of the silicone pad (2). The first threaded rod (3) is threadedly connected to the inside of a first threaded cylinder (4). The first threaded cylinder (4) is rotatably installed inside the sand box (1). A first connecting block (5) is fixedly installed on both sides of the first threaded rod (3). The first connecting block (5) is slidably connected to a first guide rod (6). The first guide rod (6) is fixedly installed on the bottom surface inside the sand box (1). A push plate (7) is provided on one side of the sand box (1). The push plate (7) is rotatably installed on a connector (8) through a transmission mechanism. The connector (8) is fixedly installed with the output end of a drive cylinder (9). The drive cylinder (9) is fixedly installed on the sand box (1).

2. The sandbox physical simulation experiment pushing device according to claim 1, characterized in that, Multiple first threaded cylinders (4) and multiple first threaded rods (3) are provided. Multiple first threaded cylinders (4) are fixedly installed with first worm gears (10). Multiple first worm gears (10) are meshed with first worms (11). The first worms (11) are rotatably installed inside the sand box (1). One end of the first worm (11) is fixedly installed with the output end of the first motor (12). The first motor (12) is fixedly installed on the sand box (1).

3. The sandbox physical simulation experiment pushing device according to claim 2, characterized in that, Silicone strips are fixedly installed on both sides of the push plate (7), and friction threads (13) are provided on the surface of the push plate (7). The push plate (7) is made of stainless steel.

4. The sandbox physical simulation experiment pushing device according to claim 3, characterized in that, The transmission mechanism includes a connecting rod (14) fixedly mounted on the push plate (7), the connecting rod (14) being rotatably mounted on the connector (8), a second worm gear (15) being fixedly mounted on the rotating shaft of the connecting rod (14), the second worm gear (15) meshing with a second worm (16), the output end of a second motor (17) being fixedly mounted on the second worm (16), and the second motor (17) being fixedly mounted on the connector (8).

5. The sandbox physical simulation experiment pushing device according to claim 4, characterized in that, The silicone pad (2) has a second threaded rod (18) attached to the middle of its bottom. The second threaded rod (18) is threaded to the inside of the second threaded cylinder (19). The second threaded cylinder (19) is rotatably installed inside the sand box (1). The second connecting blocks (20) are fixedly installed on both sides of the second threaded rod (18). The second connecting blocks (20) are slidably connected to the second guide rod (21). The second guide rod (21) is fixedly installed on the bottom surface inside the sand box (1). The second threaded cylinder (19) is fixedly installed with a third worm gear (31). The third worm gear (31) meshes with a third worm (32). The third worm (32) is fixedly installed with the output end of a fourth motor (33).

6. The sandbox physical simulation experiment pushing device according to claim 5, characterized in that, The sand box (1) is rotatably installed between two fixed blocks (22), and the two fixed blocks (22) are fixedly installed on the workbench (23). The workbench (23) has a sliding groove (24) on its surface.

7. The sandbox physical simulation experiment pushing device according to claim 6, characterized in that, The slide groove (24) is rotatably mounted with a third threaded rod (25), the third threaded rod (25) is threadedly connected to a sliding block (26), the sliding block (26) is rotatably mounted with one end of a rod (27), the other end of the rod (27) is rotatably mounted at the bottom of the sand box (1), and the output end of a third motor (28) is fixedly mounted on one end of the third threaded rod (25).

8. The sandbox physical simulation experiment pushing device according to claim 7, characterized in that, The sand box (1) is made of transparent material, and scale lines (29) are provided on the surface of the sand box (1). A support rod (30) is fixedly installed at the bottom of the workbench (23).

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