A double-box gravity type tidal simulation experiment device

Abstract

This invention discloses a dual-box gravity-based tidal simulation experimental device. The main box is equipped with a simulation experimental component, which includes a secondary box. The bottom middle of the main box is connected to one side of the secondary box via a connecting pipe. A gate valve is installed in the middle of the connecting pipe. A drain pipe is installed on one side of the secondary box. A water storage tank is installed at the end of the secondary box away from the main box. A water supply valve is installed at the bottom of the water storage tank near the secondary box. A water supply pipe is installed on one side of the water supply valve and connected to the top of the secondary box. A grid background plate is installed on the front of the main box. Automatic cleaning components are installed on the tops of the main box and the secondary box. This invention utilizes the fixed elevation of the support platform to naturally form a functional differentiation of "shallow water in the main box (plant exposure area) and deep water in the secondary box (fish refuge area)". It is gravity-driven, simple to operate, requires no manual retrieval, conforms to the behavioral rhythms of the wild, reduces stress interference, and makes the experiment more accurate.

Description

Technical Field

[0001] This invention relates to the field of ecological experimental device technology, specifically a dual-box gravity-type tide simulation experimental device. Background Technology

[0002] Estuarine wetlands and tidal river sections exhibit rich tidal hydrological characteristics, and periodic water level changes significantly impact the survival, growth, and reproduction of submerged plants. As key primary producers in aquatic ecosystems, submerged plants, with their thin leaves, underdeveloped cuticles, and well-developed air cavities, are extremely sensitive to dew stress. During low tide exposure, their leaves lose water rapidly, and cell membrane integrity is easily damaged, consequently affecting photosynthesis, nutrient absorption, and population renewal. To study ecological processes under tidal conditions, various tidal simulation devices have been developed.

[0003] The patent application number CN201720161319.1 mentions "a wetland ecological simulation device", which uses a controller to control a bidirectional water pump to simulate tidal movement. When the water in the right water tank is pumped out and the left water tank reaches a certain height and hits the water level sensor, the signal is transmitted from the sensor to the controller. The controller makes the water pump work in reverse, so that the water is pumped back to the right water tank.

[0004] However, in existing simulation devices, the plants and fish are set up independently, or only a single organism is considered. The method of removing submerged plants from the water for exposure is often used. Each removal-replacement operation causes additional mechanical damage to the submerged plants, such as leaf breakage and air cavity rupture. These damages are mixed with desiccation stress and cannot be distinguished. Existing devices often use manual retrieval to transfer fish, which cannot simulate natural migration behavior and is prone to stress damage, interfering with the authenticity of experimental results. Summary of the Invention

[0005] This invention provides a dual-box gravity-based tidal simulation experimental device, which can effectively solve the problems mentioned in the background art, such as the independent setup of each other or focusing only on a single organism, and the method of removing submerged plants from the water for exposure. Each removal-replacement operation will cause additional mechanical damage to the submerged plants, such as leaf breakage and air cavity rupture. These damages are mixed with desiccation stress and cannot be distinguished. Existing devices mostly use manual retrieval to transfer fish, which cannot simulate natural migration behavior and is prone to stress damage, interfering with the authenticity of experimental results.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dual-box gravity-type tidal simulation experimental device, comprising a main box, wherein a simulation experimental component is installed in the main box, and the simulation experimental component includes a secondary box; A secondary tank is provided on one side of the main tank. The bottom middle of the main tank is connected to the bottom of the secondary tank via a connecting pipe. A gate valve is installed in the middle of the connecting pipe. A drain pipe is installed at the bottom of the secondary tank. A water storage tank is installed at the end of the secondary tank away from the main tank. A water supply valve is installed at the bottom of the water storage tank near the secondary tank. A water supply pipe is installed on one side of the water supply valve and connects to the top of the secondary tank. A grid background panel is installed on the front of the main tank. The main body, the auxiliary body, and the water storage tank are all equipped with support pads at their bottom ends.

[0007] According to the above technical solution, a planting base is installed at the bottom of the main box, a planting trough is opened in the middle of the planting base, a substrate layer is laid on the top surface of the planting trough, a top protective plate is embedded at the top of the planting trough at the top surface of the substrate layer, and a cross planting hole is opened in the middle of the top surface of the top protective plate. Enameled copper wires are evenly installed on the top surface of the top protective plate outside the cross-shaped planting hole. The top ends of the four enameled copper wires are all connected to the bottom end of the deformation ring. An air ring is bonded to the inner side of the deformation ring.

[0008] According to the above technical solution, the bottom surface of the main tank is higher than the bottom surface of the auxiliary tank, the main tank and the auxiliary tank have the same size, and the top surface of the auxiliary tank is flush with the bottom surface of the water storage tank.

[0009] According to the above technical solution, magnetic strips are evenly embedded on the outer side of the planting base, and the bottom edge of the planting base is chamfered.

[0010] According to the above technical solution, an anti-slip rubber ring is bonded to the inner side of the inflatable ring, and the center of the inflatable ring and the center of the cross-shaped planting hole are on the same vertical line.

[0011] According to the above technical solution, an automatic cleaning component is installed on the top of the main body and the auxiliary body, and the automatic cleaning component includes a fixing frame; The top of the main box and the auxiliary box are both snapped with fixed frames. Support rods are installed at the corners of the top of the fixed frames. The tops of the support rods are connected to the bottom of the top frame. A drive motor is installed in the middle of the top surface of the top frame. The output shaft of the drive motor passes through the top frame and is connected to a drive screw. A gantry tube is threadedly connected to the middle of the drive screw. The bottom ends of the gantry tube are welded to the middle ends of the rectangular flushing tube, and rubber scrapers are attached to the top and bottom ends of the rectangular flushing tube. A filter screen frame is embedded on the outside of the rectangular flushing tube.

[0012] According to the above technical solution, a horizontal connecting pipe is installed on one side of the top surface of the gantry pipe, a water pump is installed on the top surface of one end of the horizontal connecting pipe, a fixed water pumping pipe is installed on the bottom surface of the other end of the horizontal connecting pipe, a movable inner pipe is movably connected to the bottom end of the fixed water pumping pipe, a magnetic ring is fixedly installed at the bottom end of the movable inner pipe, inclined baffles are evenly installed inside the movable inner pipe, and a filter screen is installed at the top end of the movable inner pipe.

[0013] According to the above technical solution, an internally threaded tube is welded to the top surface of the gantry tube corresponding to the drive screw, and the internally threaded tube is connected to the drive screw through a thread.

[0014] According to the above technical solution, the outer diameter of the movable inner tube is equal to the inner diameter of the fixed pumping pipe, the inner diameter of the magnetic ring is equal to the inner diameter of the movable inner tube, and the magnetic ring is magnetically connected to the bottom end of the fixed pumping pipe.

[0015] According to the above technical solution, the input terminals of the drive motor and the water pump are electrically connected to the output terminal of the external power supply, and the outlet terminal of the water pump is connected to the gantry pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The simulation experiment components are set up. The substrate layer is poured into the planting trough of the planting tray, and the top protective plate is installed. Aquatic plants are planted in the cross-shaped planting holes. Then, the enameled copper wire and the deformation ring are pulled. The plants are held by the anti-slip rubber ring on one side of the air ring. The clamping force should not be too large to avoid damaging the plant tissue. The planting tray sinks into the bottom of the main box, and the magnetic strips are attached to each other. During this process, care should be taken to avoid the planting tray from blocking the connecting pipe. The plants are supported by the enameled copper wire and the deformation ring. The support height is adjusted according to the height of the plants and the needs of the experiment to reduce the situation of plants tipping over and squeezing each other, so as to facilitate subsequent observation. By using the fixed elevation of the support frame, a functional differentiation is naturally formed between the "shallow water main box (plant exposure area) and the deep water secondary box (fish refuge area)". It is gravity-driven and easy to operate. During the above experiment, a grid background board is attached to the outside of the main box. Recovery indicators such as plant height, leaf angle, leaf color change and new leaf emergence time can be quantified by taking pictures and image analysis software, so as to achieve non-destructive continuous observation. The total amount of water drained from the secondary box can be controlled. Submerged plants remain fixed in the main container and are exposed in situ during low tide as the water level drops, avoiding additional mechanical damage caused by transplantation. Fish can enter and exit autonomously through the connecting pipes during water level changes without the need for manual retrieval, which conforms to their natural behavior rhythms, reduces stress interference, and makes the experiment more accurate.

[0017] 2. An automatic cleaning component is provided. If the inner walls of the main chamber and the auxiliary chamber become stained during the experiment, affecting observation, a fixed frame is installed at the top of the main chamber and the auxiliary chamber. The rubber scraper of the rectangular rinsing tube is attached to the inner walls of the main chamber and the auxiliary chamber. The drive motor is started, which drives the drive screw to rotate, pushing the rectangular rinsing tube connected to the gantry tube downward. During this process, the rubber scraper squeezes and scrapes away the debris adhering to the inner walls of the main chamber and the auxiliary chamber. At the same time, water is drawn from the chamber through the fixed water pump. The water passes through the movable inner tube, through the inclined baffle and the filter screen, and then through the horizontal connecting pipe into the gantry tube and the rectangular rinsing tube. After passing through the filter screen frame, it is sprayed onto the inner walls of the main chamber and the auxiliary chamber, improving the cleaning effect. In summary, the simulation experiment component is used to simulate experiments and avoids additional mechanical damage caused by transplantation by simulating natural water levels. Furthermore, fish can autonomously enter and exit through the connecting pipes during water level changes, reducing stress interference caused by manual harvesting, thus making the experiment more accurate. The automatic cleaning component traps debris in the water and collects it on the top of the inclined baffle in a timely manner, which plays a role in purifying the water and keeping it clear for easy observation. The automatic cleaning component can assist the simulation experiment component, making it more conducive to observation and more accurate in drawing experimental conclusions. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0019] In the attached diagram: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the simulation experiment component of the present invention; Figure 3 This is a schematic diagram of the installation structure of the top protective plate of the present invention; Figure 4 This is a schematic diagram of the installation structure of the enameled copper wire of the present invention; Figure 5 This is the present invention. Figure 4 A schematic diagram of the structure of region A; Figure 6 This is a schematic diagram of the structure of the automatic cleaning component of the present invention; Figure 7 This is a schematic diagram of the installation structure of the movable inner tube of the present invention; Labels in the diagram: 1. Main box body; 2. Simulation Experiment Components; 201. Sub-box; 202. Connecting pipe; 203. Gate valve; 204. Drainage pipe; 205. Water storage tank; 206. Water supply valve; 207. Water supply pipe; 208. Grid background board; 209. Supporting platform; 210. Planting base; 211. Planting trough; 212. Substrate layer; 213. Top protective plate; 214. Cross-shaped planting hole; 215. Enamelled copper wire; 216. Deformation ring; 217. Inflatable ring; 218. Anti-slip rubber ring; 219. Magnetic strip; 3. Automatic cleaning components; 301. Fixed frame; 302. Support rod; 303. Top frame; 304. Drive motor; 305. Drive screw; 306. Mover tube; 307. Internally threaded tube; 308. Rectangular flushing tube; 309. Rubber scraper; 310. Filter screen frame; 311. Horizontal connecting pipe; 312. Water pump; 313. Fixed water pumping pipe; 314. Movable inner tube; 315. Magnetic ring; 316. Slanted baffle; 317. Filter screen. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] Example: Figure 1-7 As shown, the present invention provides a technical solution for a dual-box gravity-type tidal simulation experimental device, including a main box 1, on which a simulation experimental component 2 is installed. The simulation experimental component 2 includes a secondary box 201, a connecting pipe 202, a gate valve 203, a drain pipe 204, a water storage tank 205, a water supply valve 206, a water supply pipe 207, a grid background plate 208, a support platform 209, a planting base 210, a planting trough 211, a substrate layer 212, a top protective plate 213, a cross-shaped planting hole 214, enameled copper wire 215, a deformation ring 216, an air ring 217, an anti-slip rubber ring 218, and a magnetic strip 219. A secondary tank 201 is provided on one side of the main tank 1. The bottom middle of the main tank 1 is connected to the bottom of one side of the secondary tank 201 through a connecting pipe 202. A gate valve 203 is installed in the middle of the connecting pipe 202. A drain pipe 204 is installed on one side of the bottom of the secondary tank 201. A water storage tank 205 is installed on the side of the secondary tank 201 away from the main tank 1. The bottom surface of the main tank 1 is higher than the bottom surface of the secondary tank 201. The main tank 1 and the secondary tank 201 are the same size. The top of the secondary tank 201 is flush with the bottom surface of the water storage tank 205 to facilitate water flow and simulate tidal flow. A water supply valve 206 is installed at the bottom of the water storage tank 205 near the secondary tank 201. A water supply pipe 207 is installed on one side of the water supply valve 206 and connects to the top of the secondary tank 201. A grid background plate 208 is installed on the front of the main tank 1. The main tank 1, the auxiliary tank 201 and the water storage tank 205 are all equipped with support pads 209 at their bottom ends.

[0022] The main body 1 has a planting tray 210 installed at the bottom. Magnetic strips 219 are evenly embedded on the outside of the planting tray 210. The bottom edge of the planting tray 210 is chamfered to facilitate splicing of the planting trays 210. A planting trough 211 is opened in the middle of the planting tray 210. A substrate layer 212 is laid on the top surface of the planting trough 211. A top guard plate 213 is embedded at the top of the planting trough 211 at the top surface of the substrate layer 212. A cross-shaped planting hole 214 is opened in the middle of the top surface of the top guard plate 213. The top ends of four enameled copper wires 215 are all connected to the bottom of the deformation ring 216. An air ring 217 is glued to the inside of the deformation ring 216. An anti-slip rubber ring 218 is glued to the inside of the air ring 217. The center of the air ring 217 and the center of the cross-shaped planting hole 214 are on the same vertical line to facilitate fixing aquatic plants. The main housing 1 and the auxiliary housing 201 are equipped with an automatic cleaning assembly 3. The automatic cleaning assembly 3 includes a fixed frame 301, a support rod 302, a top frame 303, a drive motor 304, a drive screw 305, a door frame tube 306, an internal threaded tube 307, a rectangular flushing tube 308, a rubber scraper 309, a filter screen frame 310, a horizontal connecting tube 311, a water pump 312, a fixed water pumping pipe 313, a movable inner tube 314, a magnetic ring 315, an inclined baffle 316, and a filter screen 317. The top of both the main housing 1 and the auxiliary housing 201 are fitted with a fixed frame 301. A support rod 302 is installed at the corner of the top of the fixed frame 301. The top of the support rod 302 is connected to the bottom of the top frame 303. A drive motor 304 is installed in the middle of the top surface of the top frame 303. The output shaft of the drive motor 304 passes through the top frame 303 and is connected to a drive screw 305. A gantry tube 306 is threadedly connected to the middle of the drive screw 305. An internally threaded tube 307 is welded to the top surface of the gantry tube 306 corresponding to the drive screw 305. The internally threaded tube 307 is threadedly connected to the drive screw 305 to improve the stability when the drive screw 305 drives the gantry tube 306 to rise and fall. The bottom ends of the gantry tube 306 are welded to the middle ends of the rectangular flushing tube 308, and rubber scrapers 309 are attached to the top and bottom ends of the rectangular flushing tube 308. A filter screen frame 310 is inlaid on the outside of the rectangular flushing tube 308.

[0023] A horizontal connecting pipe 311 is installed on one side of the top surface of the gantry pipe 306. A water pump 312 is installed on the top surface of one end of the horizontal connecting pipe 311. The input terminals of the drive motor 304 and the water pump 312 are electrically connected to the output terminal of an external power supply, respectively. The outlet terminal of the water pump 312 is connected to the gantry pipe 306 to ensure the normal operation of the drive motor 304 and the water pump 312. A fixed water pumping pipe 313 is installed on the bottom surface of the other end of the horizontal connecting pipe 311. The movable inner tube 314 is connected to the movable end of the movable inner tube 314. A magnetic ring 315 is fixedly installed at the bottom of the movable inner tube 314. The outer diameter of the movable inner tube 314 is equal to the inner diameter of the fixed water pumping pipe 313. The inner diameter of the magnetic ring 315 is equal to the inner diameter of the movable inner tube 314. The magnetic ring 315 magnetically connects to the bottom of the fixed water pumping pipe 313, which facilitates the installation of the movable inner tube 314. Inclined baffles 316 are evenly installed inside the movable inner tube 314. A filter screen 317 is installed at the top of the movable inner tube 314.

[0024] The working principle and usage process of this invention: The main box 1 is made of transparent material, and a grid background plate 208 is attached to the outside of the box wall for non-destructive continuous observation of plant morphological changes. The auxiliary box 201 is used to simulate a deep water refuge area and is placed in a lower position. The initial water depth of the auxiliary box 201 should be sufficient (≥35cm) so that the water depth can still be maintained at ≥20cm after the water level drops slightly during the migration stage. An oxygenation device and an oxygenation pump can be connected to the auxiliary box 201 to ensure sufficient dissolved oxygen. The connecting pipe 202 is used to connect the bottom of the main box 1 and the lower part of the auxiliary box 201. The connecting pipe 202 is made of rigid and smooth pipe material. The inner diameter of the connecting pipe is set according to the body width of the experimental fish to ensure that the experimental fish can pass freely and the water flow resistance is minimal. A gate valve 203 is provided on the connecting pipe 202, but the gate valve 203 is always kept open during the experiment and is only closed when the device is cleaned or maintained. A substrate layer 212 is poured into the planting trough 211 of the planting tray 210, and a top protective plate 213 is installed. Aquatic plants are planted in the cross-shaped planting holes 214. Then, the enameled copper wire 215 and the deformation ring 216 are pulled to deform. The plants are held by the anti-slip rubber ring 218 on one side of the air ring 217. The clamping force should not be too large to avoid damaging the plant tissue. The planting tray 210 sinks into the bottom of the main box 1, and the magnetic strips 219 are attached to each other. During this process, care should be taken to avoid the planting tray 210 from blocking the connecting pipe 202. The plants are supported by the enameled copper wire 215 and the deformation ring 216. The support height is adjusted according to the height of the plants and the needs of the experiment to reduce the situation of plants tipping over and squeezing each other, so as to facilitate subsequent observation. During the experiment, at high tide (normal water level), the water surfaces of the main tank 1 and the auxiliary tank 201 are level. Since the bottom of the main tank 1 is raised, the actual water depth of the main tank 1 = water surface height - raised height; the actual water depth of the auxiliary tank 201 = water surface height. Aquatic plants are planted in the main tank 1, and their height should be less than the actual water depth of the main tank 1 to ensure complete submersion during high tide. Fish can freely enter and exit the main tank 1 through the connecting pipe 202 to graze on the aquatic plants. During the ebb tide (water level drops), keep the connecting pipe 202 unobstructed and drain water from the drain pipe 204 of the secondary tank 201. Due to the principle of communicating vessels, the water levels in the main tank 1 and the secondary tank 201 drop synchronously. When the water level drops to near the height of the raised section and the water depth in the main tank is only about 5cm, the submerged plants dry out in situ, while the water in the secondary tank 201 remains relatively deep, providing sufficient deep-water refuge space for fish. Throughout the ebb tide, fish sense the drop in water level and will naturally swim into the secondary tank 201 through the connecting pipe 202. During high tide (water level rise): Keep the connecting pipe 202 unobstructed, open the water supply valve 206 of the water storage tank 205 to replenish water to the auxiliary tank 201. The water levels in the main tank 1 and the auxiliary tank 201 rise synchronously, returning to the initial high water level. Fish naturally swim back to the main tank 1 to graze on the aquatic plants damaged by exposure. Two low-tide-high-tide cycles are performed daily to simulate a semi-diurnal tidal rhythm. The experiment can be run continuously for 21 days, or a longer experimental period can be set as needed to study the cumulative effects of combined stress and the recovery capacity of submerged plants. By using the fixed elevation of the support frame 209, a functional differentiation is naturally formed between "shallow water in the main box 1 (plant exposure area) and deep water in the secondary box 201 (fish refuge area)". Driven by gravity, the operation is simple. During the above experiment, a grid background plate 208 is attached to the outside of the main box 1. Recovery indicators such as plant height, leaf angle, leaf color change, and new leaf emergence time can be quantified through photography and image analysis software to achieve non-destructive continuous observation. By controlling the total amount of water drained from the secondary box 201, different exposure gradients can be set: light exposure: only the leaf tips are exposed; moderate exposure: the middle and above of the plant are exposed; heavy exposure: the water depth of the main box 1 is 0, and the plant is completely exposed. This experiment only drains or replenishes water from the secondary box 201. The water level of the two boxes rises and falls synchronously through the principle of communicating vessels, making the operation extremely simple. Submerged plants are always fixed in the main container 1. During low tide, they are exposed in situ by the drop in water level, avoiding additional mechanical damage caused by transplantation. Fish can enter and exit autonomously through the connecting pipe 202 during water level changes without the need for manual retrieval. This conforms to the behavioral rhythms in the wild, reduces stress interference, and makes the experiment more accurate.

[0025] During the experiment, if the outer surfaces of the main chamber 1 and the auxiliary chamber 201 become stained, affecting observation, a fixing frame 301 is installed at the top of the main chamber 1 and the auxiliary chamber 201. The rubber scraper 309 of the rectangular rinsing pipe 308 is attached to the inner wall of the main chamber 1 and the auxiliary chamber 201. The drive motor 304 is started, which drives the drive screw 305 to rotate, pushing the rectangular rinsing pipe 308 connected to the gantry tube 306 downward. During this process, the rubber scraper 309... 09. Squeeze and scrape away the debris adhering to the inner walls of the main chamber 1 and the auxiliary chamber 201. During this process, water is drawn from the chamber through the fixed water pipe 313 connected to the water pump 312. The water passes through the movable inner pipe 314, then through the inclined baffle 316 and the filter screen 317, and then through the horizontal connecting pipe 311 into the gate pipe 306 and the rectangular flushing pipe 308. After passing through the filter screen frame 310, the water is sprayed onto the inner walls of the main chamber 1 and the auxiliary chamber 201 to improve the cleaning effect. Furthermore, during the cleaning process described above, the filter screen 317 inside the movable inner tube 314 traps impurities in the water, which fall onto the top of the inclined baffle 316 and are collected in time, thus purifying the water and keeping it clear for easy observation.

[0026] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dual-box gravity-based tidal simulation experimental device, comprising a main box (1), characterized in that: The main housing (1) is equipped with a simulation experiment component (2), which includes a secondary housing (201). A secondary box (201) is provided on one side of the main box (1). The bottom middle of the main box (1) is connected to the bottom of one side of the secondary box (201) through a connecting pipe (202). A gate valve (203) is installed in the middle of the connecting pipe (202). A drain pipe (204) is installed at the bottom of one side of the secondary box (201). A water storage tank (205) is installed at the end of the secondary box (201) away from the main box (1). A water supply valve (206) is installed at the bottom of the water storage tank (205) near the secondary box (201). A water supply pipe (207) is installed on one side of the water supply valve (206) and connected to the top of the secondary box (201). A grid background plate (208) is installed on the front of the main box (1). The main body (1), the auxiliary body (201) and the water storage tank (205) are all equipped with support pads (209) at their bottom ends.

2. The dual-box gravity-based tidal simulation experimental device according to claim 1, characterized in that, The main box (1) is equipped with a planting base (210) at the bottom. A planting trough (211) is provided in the middle of the planting base (210). A substrate layer (212) is laid on the top surface of the planting trough (211). A top guard plate (213) is inlaid at the top of the planting trough (211) at the top surface of the substrate layer (212). A cross planting hole (214) is provided in the middle of the top surface of the top guard plate (213). The top surface of the top guard plate (213) is uniformly installed with enameled copper wires (215) outside the cross-shaped planting hole (214). The top ends of the four enameled copper wires (215) are all connected to the bottom end of the deformation ring (216). An air ring (217) is bonded to the inner side of the deformation ring (216).

3. The dual-box gravity-based tidal simulation experimental device according to claim 1, characterized in that, The bottom surface of the main tank (1) is higher than the bottom surface of the auxiliary tank (201). The main tank (1) and the auxiliary tank (201) have the same size. The top of the auxiliary tank (201) is flush with the bottom surface of the water storage tank (205).

4. The dual-box gravity-based tidal simulation experimental device according to claim 2, characterized in that, The outer side of the planting base (210) is uniformly inlaid with magnetic strips (219), and the bottom edge of the planting base (210) is chamfered.

5. The dual-box gravity-based tidal simulation experimental device according to claim 2, characterized in that, An anti-slip rubber ring (218) is bonded to the inner side of the air ring (217), and the center of the air ring (217) and the center of the cross-shaped planting hole (214) are on the same vertical line.

6. The dual-box gravity-based tidal simulation experimental device according to claim 1, characterized in that, The main housing (1) and the secondary housing (201) are equipped with an automatic cleaning component (3), which includes a fixing frame (301). The top of the main housing (1) and the auxiliary housing (201) are both fitted with a fixed frame (301). A support rod (302) is installed at the corner of the top of the fixed frame (301). The top of the support rod (302) is connected to the bottom of the top frame (303). A drive motor (304) is installed in the middle of the top surface of the top frame (303). The output shaft of the drive motor (304) passes through the top frame (303) and is connected to a drive screw (305). A gantry tube (306) is threadedly connected to the middle of the drive screw (305). The bottom ends of the gantry tube (306) are respectively welded to the middle ends of the rectangular flushing tube (308). The top and bottom ends of the rectangular flushing tube (308) are both glued with rubber scrapers (309). The outer side of the rectangular flushing tube (308) is inlaid with a filter screen frame (310).

7. The dual-box gravity-based tidal simulation experimental device according to claim 6, characterized in that, A horizontal connecting pipe (311) is installed on one side of the top surface of the gantry pipe (306). A water pump (312) is installed on the top surface of one end of the horizontal connecting pipe (311). A fixed water pumping pipe (313) is installed on the bottom surface of the other end of the horizontal connecting pipe (311). A movable inner pipe (314) is movably connected to the bottom end of the fixed water pumping pipe (313). A magnetic suction ring (315) is fixedly installed at the bottom end of the movable inner pipe (314). Inclined baffles (316) are evenly installed inside the movable inner pipe (314). A filter screen (317) is installed at the top end of the movable inner pipe (314).

8. The dual-box gravity-based tidal simulation experimental device according to claim 6, characterized in that, The top surface of the gantry tube (306) is welded with an internally threaded tube (307) corresponding to the drive screw (305), and the internally threaded tube (307) is connected to the drive screw (305) by a thread.

9. A dual-box gravity-based tidal simulation experimental device according to claim 7, characterized in that, The outer diameter of the movable inner tube (314) is equal to the inner diameter of the fixed pumping pipe (313), the inner diameter of the magnetic ring (315) is equal to the inner diameter of the movable inner tube (314), and the magnetic ring (315) magnetically connects to the bottom end of the fixed pumping pipe (313).

10. A dual-box gravity-based tidal simulation experimental device according to claim 7, characterized in that, The input terminals of the drive motor (304) and the water pump (312) are electrically connected to the output terminal of the external power supply, and the outlet terminal of the water pump (312) is connected to the gantry pipe (306).

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