A geophysical earthquake demonstration device and its operation method

Abstract

The present invention discloses a geophysical earthquake demonstration device and an operation method thereof, which solves the problem that working parts such as guide rods are easy to wear and run not smoothly, and by adding a water container, people can further intuitively understand the impact of seismic waves by observing the vibration of water. It includes a support platform, the upper end of the support platform is fixedly connected to two support frames, the upper end of the support frame is installed with a guide frame, the lower end of the guide frame is provided with an arc groove, the arc groove is slidably connected with a second ball, the guide frame is installed with a first bolt, and the first bolt is fastened to the support frame by threaded connection; the upper end of the support platform is fixedly connected to a support seat, the upper end of the support seat is fixedly connected to a first motor, the outer side of the first rotating shaft of the first motor is fixedly connected to a first cam, and the left end of the support frame is fixedly connected to a second motor.

Description

Technical Field

[0001] The invention relates to a geophysical earthquake demonstration device, in particular to a geophysical earthquake demonstration device and a working method thereof. Background Art

[0002] Seismic waves refer to elastic waves that radiate from the source of the earthquake. When an earthquake occurs, the medium in the source area breaks and moves rapidly, and this disturbance constitutes a wave source. Due to the continuity of the earth's medium, this wave propagates to the interior and surface of the earth, forming elastic waves in the continuous medium.

[0003] Since it is difficult to directly observe the impact of earthquake waves, earthquake demonstration devices are currently used for simulation. Transverse and longitudinal vibrations are often used to vibrate the sand table, making it easier for people to observe the impact of earthquakes. However, the traditional cam-driven vibration method has a large wear on the guide rod and is not smooth enough, resulting in a short service life. In addition, the impact of earthquakes can only be understood by observing the sand table, but sometimes the sand table is not obvious enough. Therefore, there is a need to improve the existing technology. Summary of the invention

[0004] The purpose of the present invention is to provide a geophysical earthquake demonstration device and an operating method thereof, which solves the problem that working parts such as guide rods are easily worn and run not smoothly, and by adding a water cylinder, people can further intuitively understand the impact of seismic waves by observing the vibration of water.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A geophysical earthquake demonstration device comprises a support platform, wherein the upper end of the support platform is fixedly connected to two support frames, a guide frame is installed at the upper end of the support frame, an arc groove is opened at the lower end of the guide frame, a second ball is slidably connected in the arc groove, a first bolt is installed in the guide frame, and the first bolt is fastened to the support frame by threaded connection;

[0007] The upper end of the support platform is fixedly connected to a support seat, the upper end of the support seat is fixedly connected to a first motor, the outer side of the first rotating shaft of the first motor is fixedly connected to a first cam, the left end of the support frame is fixedly connected to a second motor, the outer side of the second rotating shaft of the second motor is fixedly connected to a second cam, the left end of the second cam is in contact with a support plate, the lower end of the support plate is fixedly connected to a connecting rod, the right end of the connecting rod is fixedly connected to a moving frame, the lower end of the moving frame is provided with a first ball groove, the first ball is installed in the first ball groove, and the moving frame is fixedly connected to a first spring;

[0008] The upper end of the moving frame is fixedly connected with a support column, the upper end of the support column is provided with a second ball groove, a second ball is placed in the second ball groove, a second spring is sleeved on the outer side of the support column, and a limit ring is fixedly connected to the outer side of the support column;

[0009] The upper end of the first cam is in contact with and connected to a vibration seat, and two ear plates are fixedly connected to the left and right sides of the vibration seat, and the lower ends of the ear plates are connected to a guide sleeve through threads, and a third ball groove is opened in the guide sleeve, and a third ball is placed in the third ball groove, and the third ball is in contact with the support column. A protrusion is provided in the vibration seat, and a water cylinder is threadedly connected to the vibration seat, and the water cylinder is made of transparent resin material, and a cylinder cover is threadedly connected to the upper end of the water cylinder, and a support shell is installed on the upper end of the vibration seat, and a connecting block is fixedly connected to the lower end of the support shell, and the connecting block is symmetrically designed at the bottom of the support shell, and the connecting block is fastened to the vibration seat by a second bolt, and a transparent box is fixedly connected to the upper end of the support shell, and a sand table is placed in the transparent box.

[0010] Preferably, a guide groove is provided at the upper end of the support platform, the number of the guide grooves is four, and a first ball is contacted and connected in each guide groove.

[0011] Preferably, the support frames are symmetrically designed at the upper end of the support platform, and a through slot is opened in one of the support frames, and a connecting rod passes through the through slot without contact.

[0012] Preferably, the first spring is fixedly connected to the support seat, and the number of the first springs is two, and they are symmetrically distributed on the left and right sides of the support seat.

[0013] Preferably, the two ear plates are symmetrically designed on both sides of the vibration base, and each ear plate is provided with a square groove, and a support column passes through the square groove without contact.

[0014] Preferably, the lower end of the second spring contacts the upper end of the moving frame, and the upper end of the second spring contacts the limiting ring.

[0015] Preferably, a square through slot is formed at the lower end of the guide sleeve, and a support column passes through the square through slot without contact.

[0016] An operating method of a geophysical earthquake demonstration device, the specific steps comprising:

[0017] Step 1: First, plug the plug of the first motor into the external socket, and the first rotating shaft of the first motor drives the first cam to rotate. Since the first cam has a proximal end and a distal end, the first cam performs periodic motion, and under the elastic force of the second spring, when the first cam performs periodic motion, the first cam always contacts the lower end of the vibration seat, so that the vibration seat vibrates up and down, and the vibration seat drives the water container to vibrate up and down, and the water container drives the water inside it to vibrate, and when the vibration seat vibrates, it drives the support shell to vibrate up and down, and the support shell drives the transparent box to vibrate up and down, and the transparent box drives the sandbox to vibrate up and down;

[0018] Step 2: When the vibration seat vibrates, the vibration seat drives the ear plate to vibrate up and down, the ear plate drives the second spring to compress and reset, the ear plate drives the guide sleeve to vibrate up and down, and the third ball rolls in the guide sleeve, so that the ear plate runs smoothly with small friction resistance;

[0019] Step 3: Then, the plug of the second motor is plugged into the external socket, and the rotating shaft of the second motor drives the second cam to rotate. The second cam has a proximal end and a distal end, so when the second cam performs periodic motion, it drives the support plate to vibrate left and right, the support plate drives the connecting rod to vibrate left and right, the connecting rod drives the moving frame to vibrate left and right, and the moving frame drives the first ball to roll, so that the moving frame moves smoothly with small friction resistance;

[0020] Step 4: When the moving frame vibrates left and right, the moving frame drives the supporting column to vibrate left and right, and the supporting column drives the second ball on its upper part to roll, so the friction resistance of the supporting column is small when it moves, and the supporting column drives the third ball to vibrate left and right, the third ball drives the guide sleeve to vibrate left and right, the guide sleeve drives the ear plate to vibrate left and right, the ear plate drives the vibration seat to vibrate left and right, the vibration seat drives the water cylinder to vibrate left and right, the vibration seat drives the supporting shell to vibrate left and right, the supporting shell drives the transparent box to vibrate left and right, and the transparent box drives the sandbox to vibrate left and right;

[0021] Step 5: Then you can observe the movement of water in the water cylinder and the movement of the sand table in the transparent box. By simulating the impact of earthquake waves through lateral and longitudinal vibrations, the observation is more intuitive.

[0022] Beneficial effects of the present invention: In this solution, the first motor drives the first cam to rotate and drive the vibration seat to vibrate up and down, so that the sand table vibrates up and down, and the ear plate of the vibration seat is non-contact connected with the support column, and a guide sleeve is designed at the lower end of the ear plate, and a third ball is designed in the guide sleeve. The longitudinal guidance is achieved through the contact between the third ball and the support column, the friction resistance is small, and the operation is smooth;

[0023] By installing a first ball bearing at the bottom of the moving frame and installing a second ball bearing at the upper end of the support column, and by respectively cooperating with the first ball bearing and the second ball bearing through the guide groove on the support table and the arc groove on the guide frame, the lateral guidance of the moving frame is realized, so that the friction resistance is small during lateral movement and the operation is smooth, so that the service life of the equipment guide structure is longer;

[0024] By adding a water cylinder on the vibration seat, the water cylinder is filled with water and is closed by a cylinder cover. When the device vibrates during operation, people can further intuitively understand the impact of seismic waves by observing the vibration of water, thereby achieving a better simulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 For the present invention Figure 1 A magnified view of the structure of part A;

[0028] Figure 3 For the present invention Figure 1 A magnified view of the structure of part B;

[0029] Figure 4 For the present invention Figure 2 A top view of the guide sleeve;

[0030] Figure 5 For the present invention Figure 1 A top view of the support platform;

[0031] Figure 6 For the present invention Figure 1 A top view of the vibration seat;

[0032] Figure 7 For the present invention Figure 1 A side view of a guide frame;

[0033] Figure 8 For the present invention Figure 1 Bottom view of the moving frame.

[0034] In the figure: 1 support platform, 2 guide groove, 3 support frame, 4 through groove, 5 guide frame, 6 arc groove, 7 first bolt, 8 support seat, 9 first motor, 10 first rotating shaft, 11 first cam, 12 second motor, 13 second rotating shaft, 14 second cam, 15 support plate, 16 connecting rod, 17 moving frame, 18 first ball groove, 19 first ball, 20 first spring, 21 support column, 22 second ball groove, 23 second ball, 24 second spring, 25 limiting ring, 26 vibration seat, 27 ear plate, 28 square groove, 29 guide sleeve, 30 square through groove, 31 third ball groove, 32 third ball, 33 protrusion, 34 water cylinder, 35 cylinder cover, 36 support shell, 37 connecting block, 38 second bolt, 39 transparent box, 40 sand table. DETAILED DESCRIPTION

[0035] The technical scheme of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-8 As shown, a geophysical earthquake demonstration device includes a support platform 1, the upper end of the support platform 1 is fixedly connected to two support frames 3, the upper end of the support frame 3 is installed with a guide frame 5, the lower end of the guide frame 5 is provided with an arc groove 6, and the arc groove 6 is slidably connected with a second ball 23. Through the design of the arc groove 6 and the second ball 23, the support column 21 can move more smoothly, and a first bolt 7 is installed in the guide frame 5, and the first bolt 7 is fastened to the support frame 3 through a threaded connection;

[0037] The upper end of the support platform 1 is fixedly connected with a support seat 8, and the upper end of the support seat 8 is fixedly connected with a first motor 9. The outer side of the first rotating shaft 10 of the first motor 9 is fixedly connected with a first cam 11. The left end of the support frame 3 is fixedly connected with a second motor 12. The models of the first motor 9 and the second motor 12 are both YE2, which belongs to the prior art. The plugs of the first motor 9 and the second motor 12 are plugged into an external socket, and the outer side of the second rotating shaft 13 of the second motor 12 is fixedly connected with a second cam 14. The left end of the second cam 14 is in contact with a support plate 15. The lower end of the support plate 15 is fixedly connected with a connecting rod 16, and the right end of the connecting rod 16 is fixedly connected with a moving frame 17. The lower end of the moving frame 17 is provided with a first ball groove 18, and a first ball 19 is installed in the first ball groove 18. Through the design of the first ball groove 18 and the first ball 19, the moving frame 17 can move smoothly. The moving frame 17 is fixedly connected with a first spring 20, and the first spring 20 has a reset function.

[0038] The upper end of the moving frame 17 is fixedly connected with a support column 21, and a second ball groove 22 is opened at the upper end of the support column 21. A second ball 23 is placed in the second ball groove 22, and the second ball groove 22 provides an installation space for the second ball 23. A second spring 24 is sleeved on the outer side of the support column 21, and the second spring 24 has a reset function. A limiting ring 25 is fixedly connected to the outer side of the support column 21, and the limiting ring 25 has a limiting function on the second spring 24;

[0039] The upper end of the first cam 11 is in contact with a vibration seat 26, and two ear plates 27 are fixedly connected to the left and right sides of the vibration seat 26. The lower end of the ear plate 27 is connected to a guide sleeve 29 through a thread. A third ball groove 31 is provided in the guide sleeve 29, and a third ball 32 is placed in the third ball groove 31. The third ball groove 31 provides an installation space for the third ball 32. The third ball 32 contacts the support column 21. A protrusion 33 is provided in the vibration seat 26. A water container 34 is connected to the vibration seat 26 through a thread. The water cylinder 34 is made of a transparent resin material, and a cylinder cover 35 is connected to the upper end of the water cylinder 34 through a threaded connection. A support shell 36 is installed on the upper end of the vibration seat 26, and a connecting block 37 is fixedly connected to the lower end of the support shell 36. The connecting block 37 is symmetrically designed at the bottom of the support shell 36, and the connecting block 37 and the vibration seat 26 are fastened together by a second bolt 38. A transparent box 39 is fixedly connected to the upper end of the support shell 36, and a sand table 40 is placed in the transparent box 39. The design of the transparent box 39 is convenient for viewing the sand table 40.

[0040] A guide groove 2 is provided at the upper end of the support platform 1. There are four guide grooves 2, and each guide groove 2 is contact-connected with a first ball 19. The design of the guide groove 2 provides a moving space for the first ball 19 and provides guidance for the first ball 19. The support frame 3 is symmetrically designed at the upper end of the support platform 1, and a through groove 4 is provided in one of the support frames 3. A connecting rod 16 passes through the through groove 4 without contact. The design of the through groove 4 provides a moving space for the connecting rod 16. The first spring 20 is fixedly connected to the support seat 8. There are two first springs 20, and they are symmetrically distributed on the left and right sides of the support seat 8. The first spring 20 has a reset function, and the two ear plates 27 are symmetrically designed on both sides of the vibration seat 26, and each ear plate 27 is provided with a square groove 28, and the support column 21 passes through the square groove 28 without contact, and the square groove 28 provides an installation space for the support column 21. The lower end of the second spring 24 contacts the upper end of the moving frame 17, and the upper end of the second spring 24 contacts the limit ring 25. The second spring 24 has a reset function, and the lower end of the guide sleeve 29 is provided with a square through groove 30, and the support column 21 passes through the square through groove 30 without contact, and the square through groove 30 provides an installation space for the support column 21.

[0041] An operating method of a geophysical earthquake demonstration device, the specific steps comprising:

[0042] Step 1: First, plug the plug of the first motor 9 into the external socket, and the first rotating shaft 10 of the first motor 9 drives the first cam 11 to rotate. Since the first cam 11 has a proximal end and a distal end, the first cam 11 performs periodic motion, and under the elastic force of the second spring 24, when the first cam 11 performs periodic motion, the first cam 11 always contacts the lower end of the vibration seat 26, so that the vibration seat 26 vibrates up and down, and the vibration seat 26 drives the water container 34 to vibrate up and down, and the water container 34 drives the water inside it to vibrate, and when the vibration seat 26 vibrates, it drives the support shell 36 to vibrate up and down, and the support shell 36 drives the transparent box 39 to vibrate up and down, and the transparent box 39 drives the sandbox 40 to vibrate up and down;

[0043] Step 2: When the vibration seat 26 vibrates, the vibration seat 26 drives the ear plate 27 to vibrate up and down, the ear plate 27 drives the second spring 24 to compress and reset, the ear plate 27 drives the guide sleeve 29 to vibrate up and down, and the third ball 32 rolls in the guide sleeve 29, so that the ear plate 27 runs smoothly with small friction resistance;

[0044] Step 3: Then, the plug of the second motor 12 is plugged into the external socket, and the rotating shaft 13 of the second motor 12 drives the second cam 14 to rotate. The second cam 14 has a proximal end and a distal end, so when the second cam 14 performs periodic motion, it drives the support plate 15 to vibrate left and right, the support plate 15 drives the connecting rod 16 to vibrate left and right, the connecting rod 16 drives the moving frame 17 to vibrate left and right, and the moving frame 17 drives the first ball 19 to roll, so that the moving frame 17 moves smoothly with small friction resistance;

[0045] Step 4: When the moving frame 17 vibrates left and right, the moving frame 17 drives the supporting column 21 to vibrate left and right, and the supporting column 21 drives the second ball 23 on its upper portion to roll, so the friction resistance of the supporting column 21 is small when it moves, and the supporting column 21 drives the third ball 32 to vibrate left and right, the third ball 32 drives the guide sleeve 29 to vibrate left and right, the guide sleeve 29 drives the ear plate 27 to vibrate left and right, the ear plate 27 drives the vibration seat 26 to vibrate left and right, the vibration seat 26 drives the water cylinder 34 to vibrate left and right, the vibration seat 26 drives the supporting shell 36 to vibrate left and right, the supporting shell 36 drives the transparent box 39 to vibrate left and right, and the transparent box 39 drives the sand table 40 to vibrate left and right;

[0046] Step 5: Then you can observe the movement of water in the water container 34 and the movement of the sandbox 40 in the transparent box 39. By simulating the impact of seismic waves through lateral and longitudinal vibrations, the observation is more intuitive.

[0047] The beneficial effects of the present invention are as follows: the first motor 9 drives the first cam 11 to rotate and drive the vibration seat 26 to vibrate up and down, so that the sand table 40 vibrates up and down, and the ear plate 27 of the vibration seat 26 is non-contactly connected with the support column 21, and a guide sleeve 29 is designed at the lower end of the ear plate 27, and a third ball 32 is designed in the guide sleeve 29. The contact between the third ball 32 and the support column 21 realizes longitudinal guidance, and the friction resistance is small, and the operation is smooth;

[0048] By installing the first ball 19 at the bottom of the moving frame 17 and installing the second ball 23 at the upper end of the support column 21, and by the cooperation of the guide groove 2 on the support platform 1 and the arc groove 6 on the guide frame 5 with the first ball 19 and the second ball 23 respectively, the lateral guidance of the moving frame 17 is realized, so that the friction resistance is small during lateral movement and the operation is smooth, so that the service life of the equipment guide structure is longer;

[0049] By adding a water cylinder 34 on the vibration seat 26, the water cylinder 34 is filled with water and is closed by a cylinder cover 35. When the device vibrates during operation, people can further intuitively understand the impact of seismic waves by observing the vibration of water, thereby achieving a better simulation effect.

[0050] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A geophysical earthquake demonstration device, comprising a support platform (1), characterized in that: The upper end of the support platform (1) is fixedly connected to two support frames (3), the upper end of the support frame (3) is installed with a guide frame (5), the lower end of the guide frame (5) is provided with an arc groove (6), a second ball (23) is slidably connected in the arc groove (6), a first bolt (7) is installed in the guide frame (5), and the first bolt (7) is fastened to the support frame (3) by threaded connection; The upper end of the support platform (1) is fixedly connected to a support seat (8), the upper end of the support seat (8) is fixedly connected to a first motor (9), the outer side of a first rotating shaft (10) of the first motor (9) is fixedly connected to a first cam (11), the left end of the support frame (3) is fixedly connected to a second motor (12), the outer side of a second rotating shaft (13) of the second motor (12) is fixedly connected to a second cam (14), the left end of the second cam (14) is contact-connected to a support plate (15), the lower end of the support plate (15) is fixedly connected to a connecting rod (16), the right end of the connecting rod (16) is fixedly connected to a moving frame (17), the lower end of the moving frame (17) is provided with a first ball groove (18), a first ball (19) is installed in the first ball groove (18), and the moving frame (17) is fixedly connected to a first spring (20); The upper end of the movable frame (17) is fixedly connected to a support column (21), the upper end of the support column (21) is provided with a second ball groove (22), a second ball (23) is placed in the second ball groove (22), a second spring (24) is sleeved on the outer side of the support column (21), and a limit ring (25) is fixedly connected to the outer side of the support column (21); The upper end of the first cam (11) is in contact with a vibration seat (26), and two ear plates (27) are fixedly connected to the left and right sides of the vibration seat (26). The lower end of the ear plate (27) is connected to a guide sleeve (29) through a thread. A third ball groove (31) is provided in the guide sleeve (29), and a third ball (32) is placed in the third ball groove (31). The third ball (32) contacts the support column (21). A protrusion (33) is provided in the vibration seat (26), and a water container (34) is connected to the vibration seat (26) through a thread. The water cylinder (34) is made of a transparent resin material. The upper end of the water cylinder (34) is connected to a cylinder cover (35) by means of a thread. The upper end of the vibration seat (26) is provided with a support shell (36). The lower end of the support shell (36) is fixedly connected to a connecting block (37). The connecting block (37) is symmetrically designed at the bottom of the support shell (36). The connecting block (37) is fastened to the vibration seat (26) by means of a second bolt (38). The upper end of the support shell (36) is fixedly connected to a transparent box (39). A sand table (40) is placed in the transparent box (39).

2. A geophysical earthquake demonstration device according to claim 1, characterized in that: A guide groove (2) is provided at the upper end of the support platform (1), the number of the guide grooves (2) is four, and each guide groove (2) is contact-connected with a first rolling ball (19).

3. A geophysical earthquake demonstration device according to claim 2, characterized in that: The support frames (3) are symmetrically designed at the upper end of the support platform (1), and a through slot (4) is provided in one of the support frames (3), and a connecting rod (16) passes through the through slot (4) in a non-contact manner.

4. A geophysical earthquake demonstration device according to claim 3, characterized in that: The first spring (20) is fixedly connected to the support seat (8), and the number of the first springs (20) is two, and they are symmetrically distributed on the left and right sides of the support seat (8).

5. A geophysical earthquake demonstration device according to claim 4, characterized in that: The two ear plates (27) are symmetrically designed on both sides of the vibration seat (26), and each ear plate (27) is provided with a square groove (28), and a support column (21) passes through the square groove (28) without contact.

6. A geophysical earthquake demonstration device according to claim 5, characterized in that: The lower end of the second spring (24) contacts the upper end of the moving frame (17), and the upper end of the second spring (24) contacts the limiting ring (25).

7. A geophysical earthquake demonstration device according to claim 6, characterized in that: A square through slot (30) is formed at the lower end of the guide sleeve (29), and a support column (21) passes through the square through slot (30) without contact.

8. A method for using a geophysical earthquake demonstration device as claimed in claim 7, characterized in that: The specific steps include: Step 1: firstly, the plug of the first motor (9) is plugged into the external socket, and the first rotating shaft (10) of the first motor (9) drives the first cam (11) to rotate. Since the first cam (11) has a proximal end and a distal end, the first cam (11) performs periodic motion. Under the elastic force of the second spring (24), when the first cam (11) performs periodic motion, the first cam (11) always contacts the lower end of the vibration seat (26), so that the vibration seat (26) vibrates up and down, and the vibration seat (26) drives the water container (34) to vibrate up and down, and the water container (34) drives the water inside thereof to vibrate. When the vibration seat (26) vibrates, it drives the supporting shell (36) to vibrate up and down, and the supporting shell (36) drives the transparent box (39) to vibrate up and down, and the transparent box (39) drives the sand table (40) to vibrate up and down; Step 2: When the vibration seat (26) vibrates, the vibration seat (26) drives the ear plate (27) to vibrate up and down, the ear plate (27) drives the second spring (24) to compress and reset, the ear plate (27) drives the guide sleeve (29) to vibrate up and down, and the third ball (32) rolls in the guide sleeve (29), so that the ear plate (27) runs smoothly with small friction resistance; Step 3: Then, the plug of the second motor (12) is plugged into the external socket, and the rotating shaft (13) of the second motor (12) drives the second cam (14) to rotate. The second cam (14) has a proximal end and a distal end. Therefore, when the second cam (14) performs periodic motion, it drives the support plate (15) to vibrate left and right, the support plate (15) drives the connecting rod (16) to vibrate left and right, the connecting rod (16) drives the moving frame (17) to vibrate left and right, and the moving frame (17) drives the first ball (19) to roll, so that the moving frame (17) moves smoothly with small friction resistance; Step 4: When the moving frame (17) vibrates left and right, the moving frame (17) drives the supporting column (21) to vibrate left and right, and the supporting column (21) drives the second ball (23) on the upper part thereof to roll, so that the friction resistance is small when the supporting column (21) moves, and the supporting column (21) drives the third ball (32) to vibrate left and right, and the third ball (32) drives the guide sleeve (29) to vibrate left and right, and the guide sleeve (29) drives the ear plate (27) to vibrate left and right, and the ear plate (27) drives the vibration seat (26) to vibrate left and right, and the vibration seat (26) drives the water container (34) to vibrate left and right, and the vibration seat (26) drives the supporting shell (36) to vibrate left and right, and the supporting shell (36) drives the transparent box (39) to vibrate left and right, and the transparent box (39) drives the sand table (40) to vibrate left and right; Step 5: Then the movement of water in the water container (34) and the movement of the sandbox (40) in the transparent box (39) can be observed. The influence of earthquake waves is simulated by lateral and longitudinal vibrations, and the observation is more intuitive.

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