Fish and vegetable symbiotic all-in-one machine

Abstract

The invention provides a fish and vegetable symbiotic all-in-one machine, and relates to the technical field of fish and vegetable symbiotic systems. The number of the hydroponic beds is not less than two, the hydroponic beds are vertically arranged from top to bottom, and ceramsite filter screen plates are detachably arranged at the bottoms of the hydroponic beds; the filtering pipeline is circulated, so that the filtered water body flows back into the fish tank; the multi-layer vertically-arranged hydroponic bed structure is adopted, resuspension of solid particles at the downstream is effectively avoided, it is ensured that water flowing back to the fish tank is always clear and transparent, and the risk of root system injury caused by direct contact or excessive concentrated decomposition of sediments is eliminated; meanwhile, the process of converting organic matter into inorganic salt capable of being absorbed by plants is remarkably accelerated, it is ensured that the hydroponic plants can timely and sufficiently obtain nutrients needed by growth, and the overall production efficiency and the ecological cycle rate of the system are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of aquaponics systems, specifically to an integrated aquaponics machine. Background Technology

[0002] The existing technology, disclosed in CN208462718U, discloses an aquaponics aquarium employing the air-lift principle, enabling aquaponics in various application scenarios to meet the needs of different user groups for fish farming and ornamental purposes, green vegetable cultivation, and green fresh food farming or cultivation. The aquarium includes a fish tank, a nitrification bed, an air pump, an air delivery pipe, a check valve, an air delivery pipe, an air lift pipe, and an overflow pipe or overflow hole. The advantages of this device are that the aquaponics aquarium uses compressed air to expand within the air lift pipe, pushing water and waste to the nitrification bed. Because there is no impeller or transfer shaft, the water circulation system pipes will never be clogged by waste, and the water flow rate remains essentially constant. The system's water circulation and oxygenation occur simultaneously, resulting in high efficiency and energy savings.

[0003] However, the aforementioned device still has some obvious drawbacks in its use: Although the device achieves aquaponics, it uses a sinking filtration method, which causes sediment in the aquarium to accumulate on the upper part of the floating bed. Simultaneously, the surrounding liquid flow easily causes turbidity in the floating window, hindering water filtration. Furthermore, since the sediment accumulates on top, and plants typically absorb nutrients through their roots, excessive sediment buildup on the floating bed can cause seedling burn, which is detrimental to the growth of hydroponic plants. In addition, the sediment in the floating bed is difficult to effectively aggregate and fix, and its decomposition process is slow, making it difficult to provide timely nutrients for the growth of hydroponic plants. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated aquaponics machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An integrated aquaponics machine includes: A fish tank, the bottom of which is fixedly connected to a storage cabinet; The hydroponic bed is provided in at least two sets, arranged vertically from top to bottom. The bottom of the hydroponic bed is detachably equipped with a ceramic granule filter screen, which divides the upper and lower sides of the hydroponic bed into a solid waste isolation area and a hydroponic solution area. The circulating filtration system includes a main pump pipe, a gravity flow pipe, and a return pipe. The main pump pipe connects the aquarium to the uppermost hydroponic bed. A bottom suction pump is also installed on the main pump pipe to lift the solid wastewater deposited at the bottom of the aquarium to the solid waste isolation zone of the uppermost hydroponic bed. The vertically arranged hydroponic beds are connected by gravity flow pipes, allowing water to flow sequentially into the solid waste isolation zone of the lower hydroponic beds under gravity. The aquarium is connected to the adjacent upper hydroponic bed via the return pipe, thus allowing the filtered water to flow back into the aquarium. The sediment embedding assembly includes an embedding pusher plate that is raised and lowered within the solid waste isolation area. In normal operation, the embedding pusher plate is positioned close to the bottom of the hydroponic bed. The upper part of the embedding pusher plate is used to receive sediment, and by moving upward, it pushes the sediment into the gaps of the ceramic granule filter screen, thereby promoting the conversion of sediment into hydroponic nutrients.

[0006] Preferably, each hydroponic bed is equipped with a partition plate in the middle, and an arc-shaped flow channel is opened on the partition plate. A middle layer water inlet pipe is installed on one side of the water inlet end of the arc-shaped flow channel. The two sides of the hydroponic bed are connected by the arc-shaped flow channel and the middle layer water inlet pipe, thereby realizing the non-powered flow of water.

[0007] Preferably, the ceramic particle filter plate is composed of a mesh skeleton and nitrogen-fixing ceramic particles filled inside, with the nitrogen-fixing ceramic particles forming an interlocking gap at intervals, and the deposits enter the interlocking gap upwards during the lifting process of the interlocking push plate.

[0008] Preferably, the expanded clay filter screen and the hydroponic bed are detachably installed via corresponding magnetic blocks. The expanded clay filter screen is also equipped with a hydroponic partition, which divides the hydroponic liquid area into multiple hydroponic compartments. Each hydroponic compartment is filled with a hydroponic sponge, and hydroponic plants are planted inside the hydroponic sponge.

[0009] Preferably, all of the aforementioned inserting push plates are fixedly connected to the same lifting connecting frame, and the inserting push plates move synchronously through the lifting movement of the lifting connecting frame.

[0010] Preferably, the lifting connecting frame has toothed grooves on both sides, and a pair of lifting devices symmetrically arranged along the lifting connecting frame are installed on the back side of the hydroponic bed. The lifting connecting frame is driven to move up and down by the drive gears installed on the lifting devices meshing with the toothed grooves of the lifting connecting frame.

[0011] Preferably, the upper side of the fitting push plate is provided with a plurality of rectangular arrayed micro-holes, which are connected to the flow channels opened in the lifting connecting frame. The flow channels opened in the lifting connecting frame are also connected to the hollow piston pumping rod. The end of the hollow piston pumping rod away from the lifting connecting frame is inserted into the bacterial culture tank. The piston end of the hollow piston pumping rod is lifted and inserted into the pumping cylinder opened in the bacterial culture tank. A one-way inlet valve is installed above the pumping cylinder. The side of the hollow piston pumping rod near the piston end is also provided with an inlet hole that is connected to its internal hollow channel. During the lifting and lowering process of the lifting connecting frame, the bacterial culture mixture in the bacterial culture tank flows into the fitting push plate through the lifting connecting frame and finally flows out through the micro-holes, thereby replenishing the water and bacteria in the aquarium.

[0012] Preferably, a pair of uprights are installed on the back of the storage cabinet, the hydroponic bed is evenly spaced on the uprights, and the storage cabinet is also fitted with cabinet doors via hinges.

[0013] Preferably, the gravity flow pipe and the return pipe are both Venturi tubes, and the height difference between adjacent hydroponic beds and between the hydroponic bed and the fish tank is 15-25cm. Through the setting of the Venturi tubes, the air intake of a single pipe is 0.5-1L / min.

[0014] Preferably, a supplementary lighting plate is fixedly installed above the top hydroponic bed, and supplementary lights are installed on the supplementary lighting plate and at the bottom of each hydroponic bed.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention employs a multi-layered, vertically arranged hydroponic bed structure, and uses a ceramic granule filter screen to clearly divide each hydroponic bed into an upper solid waste isolation zone and a lower clear hydroponic solution zone. Solid wastewater is filtered and purified from bottom to top, while the clear middle and lower layer of water flows into the next stage through a dedicated middle layer water inlet pipe, fundamentally avoiding the resuspension of solid particles downstream, ensuring that the water returning to the aquarium is always clear and transparent, and the system's filtration efficiency is long-lasting and stable. This invention uses a ceramic granule filter screen as a physical barrier to completely isolate sediment from the hydroponic solution area where plant roots are located. This design restricts the decomposition of sediment to the interior of the ceramic granule layer, and the nutrients produced by the decomposition are released into the hydroponic solution below in a gentle and uniform manner. This provides nutrition for the plants and completely eliminates the risk of root damage caused by direct contact or excessive concentration of sediment decomposition. This invention achieves active management of sediments through a sediment embedding component. The embedding pusher compacts loose, easily suspended sediments and embeds them into the gaps between the ceramic particles. This not only makes them aggregate and fix, preventing them from being lost with the water flow, but more importantly, it greatly increases the contact area between the sediments and the functional microorganisms attached to the surface of the ceramic particles. While fixing them, it also creates a stable microenvironment for microbial decomposition, thereby significantly accelerating the conversion of organic matter into inorganic salts that plants can absorb. This ensures that hydroponic plants can obtain the nutrients they need for growth in a timely and sufficient manner, effectively improving the overall production efficiency and ecological cycle rate of the system. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional schematic diagram of the interlocking push plate connection structure of the present invention; Figure 3 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 4 This is a front sectional view of a partial structure of the hydroponic bed of the present invention; Figure 5 This is a rear view of a partial structure of the hydroponic bed of the present invention; Figure 6 This is a schematic diagram of the hollow piston pump connecting rod connection structure of the present invention.

[0017] In the diagram: 1. Fish tank, 2. Storage cabinet, 3. Hydroponic bed, 4. Ceramsite filter screen, 5. Solid waste isolation area, 6. Hydroponic solution area, 7. Main pump pipe, 8. Gravity flow pipe, 9. Return pipe, 10. Interlocking push plate, 11. Partition plate, 12. Bow-shaped flow channel, 13. Middle layer water inlet pipe, 14. Hydroponic partition, 15. Lifting connection frame, 16. Lifter, 17. Drive gear, 18. Column, 19. Cabinet door, 20. Bottom suction pump, 21. Lighting plate, 22. Micro-hole, 23. Hollow piston pump injection rod, 24. Bacterial culture tank, 25. Pump injection cylinder, 26. One-way inlet valve plate, 27. Inlet hole. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1 to 6 The present invention provides a technical solution: Example 1: This embodiment provides a basic configuration of an aquaponics system, which mainly consists of a support frame, an aquarium unit, a multi-layer hydroponic filtration unit, an intelligent circulation and aeration unit, and a sediment treatment unit.

[0020] The supporting frame includes a storage cabinet 2 at the bottom, with two vertical columns 18 fixedly installed on the back of the cabinet, and a cabinet door 19 installed on the front of the storage cabinet 2 via hinges.

[0021] The aquarium unit is a rectangular transparent aquarium 1 with a volume of approximately 100L, which is fixedly installed on the top of the storage cabinet 2.

[0022] The multi-layer hydroponic filtration unit includes two hydroponic beds 3, which are evenly installed on the column 18 at intervals via a bracket, arranged vertically from top to bottom. The vertical height difference between adjacent hydroponic beds 3 and between them and the aquarium 1 is set at 20cm. Each hydroponic bed 3 is an open container, and a ceramic granule filter plate 4 is detachably installed at its bottom via magnetic blocks. The ceramic granule filter plate 4 consists of a stainless steel mesh skeleton and porous nitrogen-fixing ceramic granules filled within it. The gaps between the ceramic granules form an embedding gap, and the ceramic granule filter plate 4 filters the internal components of the hydroponic bed 3. The space is divided into an upper solid waste isolation area 5 and a lower hydroponic solution area 6. Within the hydroponic solution area 6, multiple independent hydroponic compartments are further divided by hydroponic partitions 14 installed on the expanded clay filter screen 4. Each hydroponic compartment is approximately 10cm × 10cm × 15cm in size. Each compartment contains a hydroponic sponge made of polyester fiber with a pore size of 80μm. The hydroponic sponge is inoculated with a high concentration of compound functional bacteria, including Bacillus subtilis, Nitrifying Bacillus, and Actinomycetes, with a bacterial concentration ≥ 2 × 10⁻⁶. 9 CFU / g, inoculation amount is 50g per square meter of sponge, used to fix the roots of hydroponic plants. Each hydroponic bed 3 also has a partition 11 fixed in the middle, with an arc-shaped flow channel 12 on the partition. A middle water inlet pipe 13 extending into the lower part of the hydroponic solution area 6 is connected to the water inlet end of the arc-shaped flow channel 12. Refer to the instruction manual. Figure 4 The inlet end of the bow-shaped flow channel 12 is connected to the middle layer water inlet pipe 13. The middle layer water inlet pipe 13 has an L-shaped bend structure, and its inlet end is located in the lower middle layer of water below the liquid surface. The water in this position is relatively clear, which can prevent floating objects and sediments from entering, thereby ensuring that the water flowing into the next stage is clear. (See the attached instruction manual.) Figure 4It can be seen that the solid wastewater enters the uppermost hydroponic bed 3 through the bottom of the ceramic granule filter plate 4, and flows upward in the solid waste isolation zone 5. Through the setting of the ceramic granule filter plate 4 and the hydroponic sponge, particulate matter in the water can be effectively intercepted, so that the upward flowing water is filtered and cleaned. At this time, the ceramic granule filter plate 4 and the hydroponic sponge not only provide nutrients for hydroponic plants, but also serve as a filtration and purification structure for the water. At the same time, since the water flows from bottom to top, the stability of the liquid flow above the water body can be ensured, and the water in the middle and lower sections is discharged to the next hydroponic bed 3 through the bow-shaped flow channel 12. Thus, the quality of the water flowing back to the fish tank 1 is ensured by adopting a multi-stage filtration and purification method.

[0023] The intelligent circulation and oxygenation unit includes a circulation filter pipe. The main pump pipe 7 connects the bottom of the fish tank 1 and the water inlet of the uppermost hydroponic bed 3. A 15W bottom suction pump 20 is installed on it. The two adjacent hydroponic beds 3 are connected by gravity flow pipe 8. The lowermost hydroponic bed 3 is connected to the fish tank 1 by return pipe 9. Both gravity flow pipe 8 and return pipe 9 adopt Venturi tube structure, which uses the negative pressure generated when water flows through to draw in air. The air intake of a single pipe is designed to be about 0.8L / min, so as to realize the simultaneous operation of water circulation and oxygenation.

[0024] The sediment treatment unit, also known as the sediment interlocking assembly, includes an interlocking push plate 10 within the solid waste isolation zone 5 of each hydroponic bed 3. Under normal conditions, the interlocking push plate 10 is tightly attached to the upper surface of the ceramic granule filter screen 4. All interlocking push plates 10 are fixedly connected to a common lifting connection frame 15. The lifting connection frame 15 has toothed grooves machined on both sides. A pair of lifters 16 driven by small stepper motors are installed on the support on the back side of the hydroponic bed 3. The drive gear 17 on the output shaft of the lifter 16 meshes with the toothed grooves of the lifting connection frame 15. When the system is running, the bottom suction pump 20 pumps the solid waste water at the bottom of the fish tank 1 into the solid waste isolation zone 5 of the uppermost hydroponic bed 3 through the main pump pipe 7. Larger solid waste particles settle here first. After the clear water in the upper layer overflows the bow-shaped flow channel 12, it enters the next level hydroponic bed 3 on the same side for filtration. At the same time, the liquid at the rear end of the upper hydroponic bed 3 enters the gravity flow pipe 8 through the overflow hole and enters the next level hydroponic bed 3 by gravity, repeating the above solid-liquid separation process. After being filtered through two layers, the clean water is finally returned to the fish tank 1 after being oxygenated through the return pipe 9.

[0025] Every 24 hours, the lifting device 16 automatically starts, at which time the bottom suction pump 20 stops working. The lifting connecting frame 15 and all the interlocking push plates 10 are driven by the drive gear 17 to rise slowly by about 3cm. The interlocking push plates 10 compact the sediment at the bottom of the solid waste isolation zone 5 and push it upward, so that it is embedded in the gaps of the ceramic particles in the ceramic particle filter screen plate 4. These fixed sediments are decomposed faster under the action of microorganisms on the surface of the ceramic particles. The converted nutrients dissolve and diffuse downward to the hydroponic liquid zone 6 for absorption by hydroponic plants. Then the interlocking push plates 10 are reset.

[0026] The specific process involves filling aquarium 1 with approximately 80L of clean water and introducing about 8 catties of koi. Then, in the double-layer hydroponic bed 3, seedlings of leafy vegetables such as lettuce and bok choy are planted in selected hydroponic compartments. After the system starts operating, the bottom suction pump 20 pumps the wastewater containing fish feces from the bottom of aquarium 1 into the first layer of hydroponic bed 3. The wastewater overflows upwards and is evenly distributed. Solid fish feces and uneaten fish food are intercepted in the solid waste isolation zone 5 below the ceramic granule filter screen 4. The clean water in the middle layer flows into the next hydroponic bed 3 through the middle layer water inlet pipe 13. The settled fish feces and soluble waste in the water are then absorbed. Permeable organic matter is decomposed and transformed by the complex microbial community on the ceramic granule filter plate 4. The water undergoes step-by-step sedimentation and biodegradation, achieving thorough purification. Finally, after oxygenation, it flows back to the fish tank 1, forming an ecological closed loop. The water stays in each stage of the hydroponic bed 3 for about 18 minutes. After continuous operation and monitoring, the system water quality is stable at: ammonia nitrogen ≤0.1mg / L, nitrite ≤0.05mg / L, nitrate ≤20mg / L, pH value 7.2-7.5, and dissolved oxygen maintained at around 6mg / L. This truly achieves fishkeeping without water changes and vegetable growing without fertilizer.

[0027] Example 2 This embodiment expands and optimizes the system's functions based on Embodiment 1 to adapt to higher loads and indoor planting needs.

[0028] In this embodiment, the volume of the aquarium 1 is increased to 150L, ​​and the hydroponic filtration unit is increased to a three-layer hydroponic bed 3 to provide stronger water treatment capabilities and more planting area. The height difference between the layers is adjusted to 25cm to enhance the natural aeration effect when the water flows down. The Venturi air intake of the gravity flow pipe 8 and the return pipe 9 is adjusted to 1L / min to ensure sufficient dissolved oxygen under high-density breeding conditions.

[0029] The nitrogen-fixing ceramic particles in the ceramic particle filter plate 4 have been specially screened, with varieties having larger pore sizes and higher surface roughness to increase the embedding gaps and microbial attachment area. The hydroponic partition 14 is designed as a module with adjustable spacing, allowing the size of the hydroponic partition to be customized according to the size of the vegetable plants.

[0030] The control of the sediment interlocking component is more intelligent. The lifter 16 is connected to a timer controller, and the user can flexibly set the lifting frequency of the interlocking pusher 10 according to the amount of aquaculture feed.

[0031] In addition, this embodiment enhances the supplemental lighting function. Above the top hydroponic bed 3, a supplemental lighting plate 21 covering the entire bed surface is fixedly installed. The plate integrates full-spectrum LED beads. At the same time, at the bottom of each hydroponic bed 3 except the bottom layer, a row of downward-facing strip lights is also installed to provide lateral supplemental lighting for the plants in the lower hydroponic beds. The supplemental lighting system is jointly controlled by a light intensity sensor and a timer to ensure that the plants are provided with 8-10 hours of suitable light with an intensity of 3000-5000 lux per day when indoor light is insufficient, thereby significantly improving vegetable yield and quality.

[0032] Example 3: The upper side of the fitting push plate 10 is also provided with a number of rectangular array micro holes 22. The micro holes 22 are connected to the flow channels opened in the lifting connecting frame 15. The flow channels opened in the lifting connecting frame 15 are also connected to the hollow piston pumping rod 23. The end of the hollow piston pumping rod 23 away from the lifting connecting frame 15 is inserted into the bacterial culture tank 24. The piston end of the hollow piston pumping rod 23 is lifted and inserted into the pumping cylinder 25 opened in the bacterial culture tank 24. A one-way liquid inlet valve plate 26 is installed above the pumping cylinder 25. The side of the hollow piston pumping rod 23 near the piston end is also provided with a liquid inlet hole 27 that is connected to its internal hollow channel. During the lifting and lowering process of the lifting connecting frame 15, the bacterial culture mixture in the bacterial culture tank 24 flows into the fitting push plate 10 through the lifting connecting frame 15 and finally flows out through the micro holes 22, thereby replenishing water and bacteria in the fish tank 1.

[0033] Based on the basic system structure of Examples 1 and 2, this embodiment focuses on expanding and integrating the functions of the sediment interlocking component. An automatic microbial replenishment system that is linked to the lifting and lowering movement of the interlocking pusher 10 is added. This enables the automatic and precise replenishment of water and beneficial microbial communities to the system while cleaning sediment, thereby promoting the decomposition of sediment.

[0034] The plate body of the interlocking pusher plate 10 is made of corrosion-resistant engineering plastic. On its upper working surface, that is, the side that directly contacts the deposit, there are a number of sets of micro-holes 22 arranged in a rectangular array. The diameter of these micro-holes 22 is preferably 0.5 mm, which are used for liquid seepage.

[0035] All the fitting push plates 10 are still fixedly connected to the same lifting connecting frame 15. The interior of the lifting connecting frame 15 is not a solid, but is precisely machined with internal flow channels 28. These internal flow channels 28 form a main channel network. One end of the network is connected to the micro-holes 22 inside each fitting push plate 10 through multiple branch interfaces, and the other end is fixedly connected to and connected to a specially designed hollow piston pumping rod 23.

[0036] The hollow piston pump injection rod 23 is a hollow metal or high-strength plastic rod. The end of the rod that is away from the lifting connecting frame 15 extends downward and is inserted into an independent microbial liquid tank 24. The microbial liquid tank 24 stores a prepared liquid composite microbial mixture containing beneficial bacteria such as nitrifying bacteria and photosynthetic bacteria.

[0037] A pumping cylinder 25 is provided at the bottom of the bacterial culture tank 24. The piston end of the hollow piston pumping rod 23 is sealed and inserted into the inner cavity of the pumping cylinder 25 in a liftable manner. A one-way inlet valve plate 26 is installed above the pumping cylinder 25, which only allows liquid to enter the pumping cylinder 25 from the bacterial culture tank 24 and prevents backflow. Near the piston end of the hollow piston pumping rod 23, at least one inlet hole 27 is provided on its rod wall. The inlet hole 27 is connected to the hollow channel inside the hollow piston pumping rod 23.

[0038] The workflow of the automated gut microbiota replenishment system is as follows: Initial state: When the interlocking push plate 10 is in the low position that is usually close to the bottom of the hydroponic bed 3, the piston end of the hollow piston pumping rod 23 is at the lower stop of the pumping cylinder 25. At this time, the liquid in the bacterial culture tank 24 pushes open the one-way inlet valve plate 26 during the process of the piston end of the hollow piston pumping rod 23 descending, and thus enters the pumping cylinder 25.

[0039] Pumping and replenishment stage: When the lifting device 16 drives the lifting connecting frame 15 to move all the fitting push plates 10 upwards, the hollow piston pumping connecting rod 23 also rises synchronously. Its piston end moves upwards inside the pumping cylinder 25. Due to the check valve 26, the bacterial solution in the pumping cylinder 25 flows into the lifting connecting frame 15 through the inlet hole 27, and finally flows out through the micro-hole 22 set above the fitting push plate 10. Through the above settings, the release process of the bacterial solution is synchronized with the sediment lifting process. This setting can achieve multiple simultaneous releases through a single drive mechanism. This device has several functions, including releasing bacterial liquid during the process, which helps the bacterial liquid accumulate in the ceramic particles, thereby promoting the decomposition of fish feces and food residues. It can also replenish water to compensate for the evaporation of water in the system. The lifting process of the lifting connecting frame 15 is controlled by a timer on the back of the device. The lifting interval can be set to 8 hours or 12 hours to perform intermittent water replenishment and sediment lifting. During the lifting of the interlocking push plate 10, the bottom suction pump 20 stops working to prevent sediment from entering below the interlocking push plate 10.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fish and vegetable symbiosis integrated machine, characterized in that, include: A fish tank, the bottom of which is fixedly connected to a storage cabinet; The hydroponic bed is provided in at least two sets, arranged vertically from top to bottom. The bottom of the hydroponic bed is detachably equipped with a ceramic granule filter screen, which divides the upper and lower sides of the hydroponic bed into a solid waste isolation area and a hydroponic solution area. The circulating filtration system includes a main pump pipe, a gravity flow pipe, and a return pipe. The main pump pipe connects the aquarium to the uppermost hydroponic bed. A bottom suction pump is also installed on the main pump pipe to lift the solid wastewater deposited at the bottom of the aquarium to the solid waste isolation zone of the uppermost hydroponic bed. The vertically arranged hydroponic beds are connected by gravity flow pipes, allowing water to flow sequentially into the solid waste isolation zone of the lower hydroponic beds under gravity. The aquarium is connected to the adjacent upper hydroponic bed via the return pipe, thus allowing the filtered water to flow back into the aquarium. The sediment embedding assembly includes an embedding pusher plate that is raised and lowered within the solid waste isolation area. In normal operation, the embedding pusher plate is positioned close to the bottom of the hydroponic bed. The upper part of the embedding pusher plate is used to receive sediment, and by moving upward, the sediment is pushed and embedded into the gaps of the ceramic granule filter screen, thereby promoting the conversion of sediment into hydroponic nutrients.

2. The aquaponics machine according to claim 1, characterized in that: Each hydroponic bed is equipped with a partition plate in the middle, and an arc-shaped flow channel is opened on the partition plate. A middle layer water inlet pipe is installed on one side of the water inlet end of the arc-shaped flow channel. The two sides of the hydroponic bed are connected by the arc-shaped flow channel and the middle layer water inlet pipe, thereby realizing the non-powered flow of water.

3. The aquaponics machine according to claim 1 or 2, characterized in that: The ceramic filter screen is composed of a mesh skeleton and nitrogen-fixing ceramic particles filled inside. The nitrogen-fixing ceramic particles form an interlocking gap at intervals. During the lifting process of the interlocking push plate, the deposits enter the interlocking gap upwards.

4. The aquaponics machine according to claim 3, characterized in that: The expanded clay filter screen and the hydroponic bed are detachably installed via corresponding magnetic blocks. The expanded clay filter screen is also equipped with a hydroponic partition, which divides the hydroponic liquid area into multiple hydroponic compartments. The hydroponic compartments are filled with hydroponic sponges, and hydroponic plants are planted in the hydroponic sponges.

5. The aquaponics machine according to claim 4, characterized in that: All of the aforementioned interlocking push plates are fixedly connected to the same lifting connecting frame, and the lifting movement of the lifting connecting frame drives the interlocking push plates to move synchronously.

6. The aquaponics machine according to claim 5, characterized in that: The lifting connecting frame has toothed grooves on both sides, and a pair of lifting devices symmetrically arranged along the lifting connecting frame are installed on the back side of the hydroponic bed. The lifting connecting frame is driven to move up and down by the drive gears installed on the lifting devices meshing with the toothed grooves of the lifting connecting frame.

7. The aquaponics machine according to claim 6, characterized in that: The upper side of the fitting push plate is also provided with a number of rectangular array micro-holes. These micro-holes are connected to the flow channels opened in the lifting connecting frame. The flow channels opened in the lifting connecting frame are also connected to the hollow piston pumping rod. The end of the hollow piston pumping rod away from the lifting connecting frame is inserted into the bacterial culture tank. The piston end of the hollow piston pumping rod is lifted and inserted into the pumping cylinder opened in the bacterial culture tank. A one-way inlet valve is installed above the pumping cylinder. The side of the hollow piston pumping rod near the piston end is also provided with an inlet hole that is connected to its internal hollow channel. During the lifting and lowering process of the lifting connecting frame, the bacterial culture mixture in the bacterial culture tank flows into the fitting push plate through the lifting connecting frame and finally flows out through the micro-holes, thereby replenishing the water and bacteria in the aquarium.

8. The aquaponics machine according to claim 7, characterized in that: The storage cabinet has a pair of uprights installed on its back side, and the hydroponic bed is evenly spaced on the uprights. The storage cabinet also has cabinet doors installed via hinges.

9. The aquaponics machine according to claim 8, characterized in that: Both the gravity flow pipe and the return pipe are Venturi tubes. The height difference between adjacent hydroponic beds and between the hydroponic bed and the fish tank is 15-25cm. The Venturi tubes allow for an air intake of 0.5-1L / min per tube.

10. The aquaponics machine according to claim 9, characterized in that: A supplemental lighting board is fixedly installed above the hydroponic bed at the top, and supplemental lights are installed on the supplemental lighting board and at the bottom of each hydroponic bed.

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