Simple fish and plant symbiotic device

Abstract

The present application relates to ecological breeding technical field, specifically is related to a kind of simple fish vegetable symbiosis equipment, including water purification unit and water inlet pipe, water purification unit includes water storage pool, bearing structure and at least two nitrification components, bearing structure includes bearing frame, the inside of bearing frame is provided with partition block, partition block is separated into upper middle and lower three parts with the inside space of bearing frame, multiple water inlet grooves are opened in the side wall of bearing frame, two nitrification components are respectively installed in upper and lower two parts of bearing frame, the both ends of bearing frame are provided with rotary connection structure, rotary connection structure is used to assist bearing frame rotation around itself central axis, the both sides of bearing frame are provided with the buoyancy adjustment structure of providing buoyancy, and buoyancy adjustment structure is used to control the depth of bearing frame sinking below water surface;The present application is provided with water purification unit, to effectively avoid the biological membrane excessive growth problem caused by long-term immersion on the surface of ceramsite, ensure the stability and persistence of nitrifying bacteria attachment space.

Description

Technical Field

[0001] This invention relates to the field of ecological aquaculture technology, specifically to a simplified aquaponics device. Background Technology

[0002] Aquaponics, as a novel ecological circular agriculture model, integrates aquaculture and hydroponics technologies, achieving a mutually beneficial symbiosis among fish, plants, and microorganisms. It improves resource utilization and reduces environmental pollution, attracting significant attention in the field of sustainable agricultural development. Among various aquaponics systems, nitrifying bacteria play a crucial role in purifying aquaculture wastewater. They convert harmful ammonia nitrogen in the water into nitrates, providing nutrients for plants and maintaining the ecological balance of the system.

[0003] Patent CN114903001B discloses a small aquaponics system that uses a floating plate to keep the bottom of the cultivation screen partially submerged in water and partially submerged on the water surface. Relying on the good adsorption capacity of the ceramic particles, the ceramic particles on the water surface absorb water and have sufficient oxygen, which is conducive to the reproduction of nitrifying bacteria. In turn, pollutants in the water storage tank are converted into nutrients that plants can absorb.

[0004] Although the above scheme allows the expanded clay pellets to continuously absorb water, providing better conditions for the reproduction of nitrifying bacteria, the distribution of the expanded clay pellets in the culture sieve results in some pellets being submerged below the water surface for a long time, continuously contacting ammonia nitrogen in the water to carry out nitrification, while some pellets are in an alternating state of wetness and dryness. Although this is conducive to the reproduction and activity maintenance of nitrifying bacteria, the surface of the expanded clay pellets in a long-term wet state is prone to excessive biofilm growth, which greatly reduces the attachment space of nitrifying bacteria and reduces the purification efficiency. Summary of the Invention

[0005] To address the aforementioned issues, a simplified aquaponics device is provided. By incorporating a load-bearing structure, at least two nitrification components, a rotating connection structure, and a buoyancy adjustment structure, it effectively avoids the problem of excessive biofilm growth on the surface of ceramic pebbles caused by long-term immersion, ensuring the stability and continuity of the space for nitrifying bacteria to attach.

[0006] To address the problems of existing technologies, this invention provides a simplified aquaponics device, including a water purification unit and an inlet pipe disposed on one side thereon. The water purification unit includes a water storage tank, a supporting structure, and at least two nitrification components. An outlet is provided on the side wall of the water storage tank. The supporting structure is floatingly disposed within the water storage tank. The supporting structure includes a supporting frame, with multiple partition blocks disposed on the inner side of the supporting frame, dividing the internal space of the supporting frame into upper, middle, and lower parts. Multiple inlet channels are provided on the side wall of the supporting frame, and the inlet channels are connected to the middle part of the supporting frame. The two nitrification components are respectively installed in the upper and lower parts of the supporting frame. Rotary connection structures are provided at both ends of the supporting frame to assist the supporting frame in rotating around its own central axis. Buoyancy adjustment structures are provided on both sides of the supporting frame to provide buoyancy and control the depth of the supporting frame below the water surface.

[0007] Preferably, the rotating connection structure includes a horizontally arranged connecting beam, a rotating shaft rotatably connected to the middle of the connecting beam, a sliding connection component connected to the bearing frame at one end of the rotating shaft, and a stabilizing connection component for fixing the rotating shaft on the connecting beam.

[0008] Preferably, the sliding connection assembly includes a slider and a plurality of first guide rods parallel to the plane of the support frame, and the first guide rods are perpendicular to the rotation axis. Each first guide rod has a second elastic reset member sleeved at both ends. The slider is slidably connected to the plurality of first guide rods, and both ends of the slider abut against the second elastic reset member.

[0009] Preferably, the stable connection assembly includes a bracket, a mounting plate, and an adjustment component; the mounting plate is located inside the bracket, and both ends of the mounting plate are provided with insertion rods, and the rotating shaft is provided with docking holes corresponding to the insertion rods; the adjustment component is located in the middle of the bracket, and the adjustment component is used to control the docking of the insertion rods with the docking holes.

[0010] Preferably, the rotating connection structure further includes a limiting guide component, which limits the lifting direction of the load-bearing frame when the buoyancy adjustment structure is working.

[0011] Preferably, the buoyancy adjustment structure includes a float and at least two gravity adjustment components; the float includes a lower box and an upper box that can be detachably connected, with the two ends of the lower box connected to two connecting beams respectively; the two gravity adjustment components are respectively disposed at the two ends inside the lower box, and the gravity adjustment components are used to adjust the gravity of the float as a whole.

[0012] Preferably, the gravity adjustment assembly includes a pump cylinder and a connecting rod coaxially arranged with the pump cylinder; the pump cylinder has a first opening and a second opening at both ends, and a piston block is provided inside the pump cylinder, which divides the inner cavity of the pump cylinder into two parts; the connecting rod is used to drive the piston block to move inside the pump cylinder.

[0013] Preferably, the buoyancy adjustment structure further includes a synchronization adjustment structure, which is connected to two gravity adjustment components. The synchronization adjustment structure is used to drive the two gravity adjustment components to synchronously adjust the magnitude of the buoyancy force on the pontoon.

[0014] Preferably, the buoyancy adjustment structure further includes a filter assembly connected to two gravity adjustment assemblies, which is used to filter the water entering the pumping cylinder.

[0015] Preferably, a fixing structure is provided at each of the four corners of the support frame, and the fixing structure fixes the nitration component to the support frame.

[0016] The advantages of this invention compared to the prior art are:

[0017] 1. This invention comprises a water storage tank, a supporting structure, at least two nitrification components, a rotating connection structure, and a buoyancy adjustment structure. After aquaculture wastewater containing fish excrement enters the water storage tank, the supporting structure floats on the water surface under the action of the buoyancy adjustment structure. The nitrification components at the bottom of the supporting frame are submerged in the water. Wastewater flows through the nitrification components via an inlet channel. The ceramic particles in the nitrification components provide an attachment environment for nitrifying bacteria, converting ammonia nitrogen into nitrate, thus achieving efficient water purification. The rotating connection structure can drive the supporting frame to rotate, causing the two nitrification components to interchange positions. The previously submerged nitrification components enter a humid air environment to promote the growth of nitrifying bacteria. In this process, the newly submerged nitrification components purify wastewater. The buoyancy adjustment structure controls the depth of the support frame below the water surface. After the nitrification components are swapped, the buoyancy adjustment structure fine-tunes the immersion depth of the support frame, so that the nitrification components located at the top of the support frame are partially submerged in water, maintaining suitable humidity conditions on the surface of the ceramic particles. Through the alternating operation mechanism of the two nitrification components, a dynamic balance is achieved in the consumption and proliferation process of nitrifying bacteria, thereby effectively avoiding the problem of excessive biofilm growth on the surface of the ceramic particles due to long-term immersion, and ensuring the stability and continuity of the nitrifying bacteria attachment space.

[0018] 2. This invention includes a connecting beam, a rotating shaft, a sliding connecting assembly, and a stabilizing connecting assembly. During water purification by the nitrification assembly, the stabilizing connecting assembly ensures that the support frame remains horizontal amidst water flow disturbances. This allows the nitrification assembly located below the support frame to remain stably submerged, ensuring full contact with the wastewater and guaranteeing the stability and efficiency of the water purification process. It also ensures that nitrifying bacteria can continuously and effectively convert ammonia nitrogen in the wastewater into nitrate. When the nitrification assembly needs to be swapped, the stabilizing connecting assembly first releases the constraint on the rotating shaft, allowing it to rotate freely. The support frame is then rotated 180 degrees manually or automatically, achieving a spatial swap between the upper and lower sets of nitrification assemblies. Afterward, the stabilizing connecting assembly again constrains the rotating shaft, fixing it to the connecting beam to prevent accidental rotation of the support frame during subsequent operation. This achieves both rotation and fixation of the support frame.

[0019] 3. The present invention is equipped with a slider, a first guide rod, and a second elastic reset component. When the support frame completes its rotation and a density gradient distribution of the ceramsite appears, an external force is applied to the support frame along the axis of the first guide rod. The support frame drives the slider to reciprocate along the first guide rod. The resulting inertial force and vibration cause the ceramsite to rearrange and tend to be evenly distributed, thereby effectively eliminating the difference in wastewater flow resistance caused by the accumulation of ceramsite, ensuring that the wastewater can fully contact the nitrifying bacteria on the surface of the ceramsite, and significantly improving the water purification efficiency. Attached Figure Description

[0020] Figure 1 This is a perspective view of the water purification unit and inlet pipe in a simplified aquaponics device according to the present invention.

[0021] Figure 2 This is a perspective view of the supporting structure, nitrification component, rotating connection structure, and buoyancy adjustment structure in a simplified aquaponics device of the present invention.

[0022] Figure 3 This is a top view of the load-bearing structure, nitrification component, rotating connection structure, and buoyancy adjustment structure in a simplified aquaponics device of the present invention.

[0023] Figure 4 yes Figure 3 A three-dimensional sectional view at point AA.

[0024] Figure 5 This is a perspective view of the support frame and rotating connection structure in a simplified aquaponics device of the present invention.

[0025] Figure 6 This is a perspective view of the rotating shaft and sliding connection assembly in a simplified aquaponics device according to the present invention.

[0026] Figure 7 This is a perspective view of the connecting beam, rotating shaft, and stable connection components in a simplified aquaponics device according to the present invention.

[0027] Figure 8 This is a perspective view of the connecting beam, rotating shaft, sliding connection assembly, stabilizing connection assembly, and limiting guide assembly in a simplified aquaponics device according to the present invention.

[0028] Figure 9 This is a perspective view of the float box, gravity adjustment component, synchronous adjustment structure, and filter component in a simplified aquaponics device according to the present invention.

[0029] Figure 10 This is a three-dimensional sectional view of the float box, gravity adjustment component, synchronous adjustment structure, and filter component in a simplified aquaponics device of the present invention.

[0030] Figure 11 This is a perspective view of the support frame, fixing structure, and nitrification components in a simplified aquaponics device according to the present invention.

[0031] Figure 12 yes Figure 11 A magnified view of a portion of point B in the middle.

[0032] The diagram is labeled as follows: 1. Water storage tank; 11. Outlet; 2. Support structure; 21. Support frame; 211. Inlet trough; 22. Partition block; 23. Fixing structure; 231. Fixing column; 232. Pressure plate; 233. First elastic reset component; 3. Nitrification assembly; 31. Culture sieve; 32. Ceramsite; 4. Rotating connection structure; 41. Connecting beam; 42. Rotating shaft; 421. Docking hole; 43. Sliding connection assembly; 431. Slider; 432. First guide rod; 433. Second elastic reset component; 44. Stabilizing connection assembly; 441. Bracket; 442. Mounting plate; 4421, Insert rod; 443, Adjustment assembly; 4431, Adjustment screw; 4432, Second guide rod; 4433, Third elastic reset component; 45, Limiting guide assembly; 451, Crossbeam; 452, Third guide rod; 5, Buoyancy adjustment structure; 51, Float box; 511, Lower box; 512, Upper box; 52, Gravity adjustment assembly; 521, Pumping cylinder; 522, Piston block; 523, Connecting rod; 53, Synchronous adjustment structure; 531, Double-ended screw; 532, Connecting arm; 54, Filter assembly; 541, Filter head; 542, Water guide pipe; 6, Inlet pipe. Detailed Implementation

[0033] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0034] Reference Figures 1 to 12 As shown: A simplified aquaponics device includes a water purification unit and an inlet pipe 6 disposed on one side thereon. The water purification unit includes a water storage tank 1, a supporting structure 2, and at least two nitrification components 3. An outlet 11 is provided on the side wall of the water storage tank 1. The supporting structure 2 is floatingly disposed in the water storage tank 1. The supporting structure 2 includes a supporting frame 21. Multiple partition blocks 22 are provided on the inner side of the supporting frame 21, dividing the internal space of the supporting frame 21 into three parts: upper, middle, and lower. Multiple inlet channels 211 are provided on the side wall of the supporting frame 21, and the inlet channels 211 are connected to the middle part of the supporting frame 21. The two nitrification components 3 are respectively installed in the upper and lower parts of the supporting frame 21. Rotary connection structures 4 are provided at both ends of the supporting frame 21 to assist the supporting frame 21 in rotating around its own central axis. Buoyancy adjustment structures 5 are provided on both sides of the supporting frame 21 to provide buoyancy and control the depth of the supporting frame 21 below the water surface.

[0035] The nitrification component 3 uses a culture sieve 31 as a carrier and is filled with porous ceramic particles 32 to provide a stable environment for the attachment and growth of nitrifying bacteria.

[0036] During operation, aquaculture wastewater containing fish excrement flows into the storage tank 1 through the inlet pipe 6. As the water level rises, the supporting structure 2 floats on the water surface under the action of the buoyancy adjustment structure 5. The nitrification component 3 at the bottom of the supporting frame 21 is submerged in the water. The wastewater forms a laminar flow through the inlet trough 211 and flows through the lower nitrification component 3. The nitrifying bacteria attached to the surface of the ceramic particles 32 convert the ammonia nitrogen in the wastewater into nitrate through biological nitrification. After the nitrification component 3 has been running for a period of time, the supporting frame 21 is rotated 180 degrees by the rotating connection structure 4, realizing the exchange of positions between the two nitrification components 3, exposing the nitrification component 3 that was originally underwater to the humid air. In the atmospheric environment, the nitrifying bacteria enter the proliferation stage, and the newly submerged nitrification component 3 is put into wastewater purification. Subsequently, the buoyancy adjustment structure 5 finely adjusts the immersion depth of the support frame 21, so that the nitrification component 3 located on the upper part of the support frame 21 is partially submerged in water, maintaining the humidity conditions on the surface of the ceramic particles 32, providing a suitable microenvironment for the reproduction of nitrifying bacteria. Through the alternating operation mechanism of the two nitrification components 3, a dynamic balance is achieved in the process of consumption and proliferation of nitrifying bacteria, thereby effectively avoiding the problem of excessive biofilm growth on the surface of the ceramic particles 32 due to long-term immersion, and ensuring the stability and continuity of the nitrifying bacteria attachment space.

[0037] Reference Figure 4 and Figure 5 As shown: The rotating connection structure 4 includes a horizontally arranged connecting beam 41, a rotating shaft 42 rotatably connected to the middle of the connecting beam 41, a sliding connection component 43 connected to the bearing frame 21 at one end of the rotating shaft 42, and a stabilizing connection component 44 for fixing the rotating shaft 42 on the connecting beam 41.

[0038] During the use of the nitrification assembly 3, the support frame 21 is in a horizontal state. The nitrification assembly 3 located at the bottom of the support frame 21 is subjected to gravity and the buoyancy adjustment structure 5, so that this part of the nitrification assembly 3 is below the water surface and can fully contact the wastewater. During the water purification process, the stabilizing connection assembly 44 ensures that the support frame 21 maintains a horizontal posture during water flow disturbance and buoyancy adjustment. After a period of use, the constraint of the stabilizing connection assembly 44 on the rotating shaft 42 is first released, so that the rotating shaft 42 can rotate freely around its own axis. The support frame 21 is rotated 180 degrees by a manual or electric drive device to complete the spatial position exchange of the upper and lower sets of nitrification assemblies 3. Then, the stabilizing connection assembly 44 constrains the rotating shaft 42 again, so that the rotating shaft 42 is fixedly connected to the connecting beam 41 to prevent the rotating shaft 42 from rotating freely. The two sliding connection assemblies 43 at both ends of the support frame 21 can move the support frame 21 in the horizontal direction, providing a basis for the uniform distribution of ceramic particles 32 in the cultivation sieve 31. Through the cooperation of the rotating shaft 42 and the stabilizing connection structure, the rotation and fixation of the support frame 21 are realized.

[0039] Reference Figure 5 and Figure 6 As shown: The sliding connection assembly 43 includes a slider 431 and a plurality of first guide rods 432 parallel to the plane of the support frame 21, and the first guide rods 432 are perpendicular to the rotating shaft 42. Each first guide rod 432 has a second elastic reset member 433 sleeved at both ends. The slider 431 is slidably connected to the plurality of first guide rods 432, and both ends of the slider 431 abut against the second elastic reset member 433.

[0040] Within the cultivation sieve 31, a reasonable gap must be maintained between the ceramsite 32 to ensure sufficient contact between the wastewater and the nitrifying bacterial biofilm on the surface of the ceramsite 32, achieving efficient water purification. However, when the support frame 21 rotates 180 degrees, the ceramsite 32 shifts within the cultivation sieve 31 due to gravity, resulting in a density gradient distribution of the ceramsite 32 in a horizontal state. This uneven distribution leads to differences in the flow velocity and contact area of ​​the wastewater flowing through different areas, causing an imbalance in the efficiency of the nitrifying bacteria on the surface of each ceramsite 32 participating in the purification reaction, thus affecting the overall purification effect. Therefore, after the support frame 21 completes its rotation, a periodic horizontal force along the axis of the first guide rod 432 is applied to the support frame 21 by an external force. Driven by this force, the support frame 21 moves the slider 43. 1. The ceramsite 32 moves in a reciprocating linear motion along the first guide rod 432. The inertial force and vibration generated during the motion are transmitted to the inside of the cultivation sieve 31. Under the action of inertia and vibration, the ceramsite 32 undergoes relative displacement and rearrangement within the cultivation sieve 31. As the carrying frame 21 continues to reciprocate, the ceramsite 32 gradually tends to a uniform distribution state. When the external force is stopped, the second elastic reset member 433 dynamically adjusts the slider 431 by virtue of its elastic restoring force and damping characteristics, causing the slider 431 to reach the force balance position in the middle of the first guide rod 432. The uniform distribution of ceramsite 32 is achieved through the reciprocating motion of the carrying frame 21, thereby effectively eliminating the difference in wastewater flow resistance caused by the accumulation of ceramsite 32, ensuring full contact between nitrifying bacteria and wastewater, and significantly improving water purification efficiency.

[0041] Reference Figure 5 and Figure 7 As shown: The stable connection component 44 includes a bracket 441, a mounting plate 442, and an adjustment component 443; the mounting plate 442 is disposed inside the bracket 441, and both ends of the mounting plate 442 are provided with insertion rods 4421, and the rotating shaft 42 is provided with docking holes 421 corresponding to the insertion rods 4421; the adjustment component 443 is disposed in the middle of the bracket 441, and the adjustment component 443 is used to control the docking of the insertion rods 4421 with the docking holes 421.

[0042] Specifically, the adjustment assembly 443 includes an adjustment screw 4431 and a second guide rod 4432. The adjustment screw 4431 is threadedly connected to the bracket 441, and the second guide rod 4432 is movably connected to the bracket 441. One end of the second guide rod 4432 is fixedly connected to the mounting plate 442, and the other end of the second guide rod 4432 is fitted with a third elastic reset member 4433. The two ends of the third elastic reset member 4433 abut against the end of the second guide rod 4432 and the bracket 441, respectively.

[0043] The fluid dynamics generated by the wastewater flow exert a lateral force on the support frame 21. Since the support frame 21 is rotatably connected via the rotating shaft 42, if the rotating shaft 42 lacks effective constraint, the support frame 21 is prone to unexpected swaying around the axis of the rotating shaft 42. This swaying will cause the ceramsite 32 inside the cultivation sieve 31 to shift, resulting in an imbalance in the mass distribution on both sides of the support frame 21, which in turn causes the support frame 21 to tilt, leading to uneven distribution of the ceramsite 32 inside the cultivation sieve 31. Therefore, it is necessary to constrain the rotating shaft 42. When the equipment is in the water purification working state, the third elastic reset member 4433 is in a compressed state, pushing the mounting plate 442 to make the insertion rod 4421 embed into the docking hole 421 of the rotating shaft 42, forming a rigid constraint, effectively limiting the rotational freedom of the rotating shaft 42, and ensuring that the support frame 21 is in a stable position. The bearing frame 21 maintains a stable posture under the disturbance of wastewater flow. When it is necessary to rotate the bearing frame 21, the adjusting screw 4431 is driven to rotate. Using the thread transmission principle, the adjusting screw 4431 is moved away from the rotating shaft 42 axially. The mounting plate 442 moves backward synchronously under the elastic restoring force of the third elastic reset member 4433, which drives the insertion rod 4421 to disengage from the docking hole 421 and releases the constraint on the rotating shaft 42. After the rotating shaft 42 completes a 180-degree rotation, the adjusting screw 4431 is rotated in the opposite direction. The adjusting screw 4431 pushes the mounting plate 442 forward through axial displacement, so that the insertion rod 4421 is re-inserted into the docking hole 421, and the rigid fixation of the rotating shaft 42 is re-established. This effectively suppresses the shaking of the bearing frame 21 and maintains the uniform distribution of the ceramsite 32 in the cultivation sieve 31.

[0044] Reference Figure 5 and Figure 7 As shown: The rotating connection structure 4 also includes a limiting guide component 45, which limits the lifting direction of the bearing frame 21 when the buoyancy adjustment structure 5 is working.

[0045] Specifically, the limiting guide assembly 45 includes a crossbeam 451 and at least two third guide rods 452. The two ends of the crossbeam 451 are fixed on the water storage tank 1. The two third guide rods 452 are vertically arranged, and one end of the third guide rod 452 is fixedly connected to the crossbeam 451. The connecting beam 41 is movably connected to the third guide rod 452.

[0046] The supporting structure 2 floats on the water surface. Without an effective guiding and limiting mechanism, the hydrodynamic force generated by the water flow will cause the supporting structure 2 to undergo irregular lateral displacement within the reservoir 1. This uncontrolled displacement is prone to causing the supporting structure 2 to collide with the inner wall of the reservoir 1. Therefore, it is necessary to restrict the movement of the supporting structure 2. The connecting beam 41 is slidably connected to the two third guide rods 452. Wastewater containing fish excrement flows into the reservoir 1 through the inlet pipe 6. As the water level continues to rise, the buoyancy adjustment structure 5 comes into contact with the water, providing buoyancy support for the supporting structure 2. Under the action of buoyancy, the supporting structure 2 rises vertically, driving the connecting beam 41 to move synchronously. Since the connecting beam 41 and the third guide rods 452 form a sliding constraint, the connecting beam 41 can only move vertically up and down along the axis of the third guide rods 452, effectively limiting the degree of freedom of the supporting structure 2 in the horizontal direction. This constraint mechanism ensures that the supporting structure 2 always maintains a stable vertical movement trajectory during the lifting and lowering process, thereby avoiding collision with the inner wall of the reservoir 1 due to lateral displacement.

[0047] Reference Figure 9 and Figure 10 As shown: The buoyancy adjustment structure 5 includes a float box 51 and at least two gravity adjustment components 52; the float box 51 includes a lower box 511 and an upper box 512 that can be detachably connected, and the two ends of the lower box 511 are respectively connected to two connecting beams 41; the two gravity adjustment components 52 are respectively disposed at both ends inside the lower box 511, and the gravity adjustment components 52 are used to adjust the gravity of the float box 51 as a whole.

[0048] When the immersion depth of the support frame 21 is too shallow, a portion of the nitrification component 3 located above the support frame 21 cannot effectively contact the wastewater, resulting in insufficient surface humidity of the expanded clay particles 32. This makes it difficult to meet the humid environment required for the reproduction of nitrifying bacteria, inhibiting the metabolic activity and proliferation rate of nitrifying bacteria. Conversely, if the immersion depth of the support frame 21 is too deep, most of the nitrification component 3 above the support frame 21 is submerged in water, and a continuous water film will form on the surface of the expanded clay particles 32, hindering oxygen penetration and exchange, causing hypoxia in nitrifying bacteria, leading to abnormal biofilm growth and a decrease in purification efficiency. Therefore, it is necessary to adjust the depth of the support frame 21 below the water surface. When it is necessary to increase the immersion depth of the support frame 21, the gravity adjustment component 52 increases the mass of the float 51. According to Archimedes' principle, in order to maintain force balance, the float 51 needs to increase the volume of water displaced, causing the float 51 to be immersed. As the water volume increases, the float 51 transmits displacement to the support frame 21 via the connecting beam 41, causing the support frame 21 to sink synchronously. Once the support frame 21 reaches the preset depth, the gravity adjustment component 52 locks the current mass state, maintaining a constant gravity for the float 51 and ensuring the support frame 21 remains stably at the target depth. When it is necessary to reduce the immersion depth of the support frame 21, the gravity adjustment component 52 reverses its operation, reducing the overall weight of the float 51. At this time, the buoyancy force on the float 51 is greater than its weight. According to the principle of force balance, the float 51 will float upwards, causing the support frame 21 to rise synchronously via the connecting beam 41 until the support frame 21 reaches the ideal depth. Then, the gravity parameters are locked again to maintain stable operation. By controlling the immersion depth of the support frame 21, the efficient operation of the nitrification component 3 is ensured, maintaining the optimal attachment and reproduction state of nitrifying bacteria on the surface of the ceramic particles 32.

[0049] Reference Figure 9 and Figure 10 As shown: The gravity adjustment assembly 52 includes a water pump 521 and a connecting rod 523 coaxially arranged with the water pump 521; the two ends of the water pump 521 are respectively provided with a first opening and a second opening, and a piston block 522 is provided inside the water pump 521, and the piston block 522 divides the inner cavity of the water pump 521 into two parts; the connecting rod 523 is used to drive the piston block 522 to move inside the water pump 521.

[0050] Specifically, the first opening extends below the water surface, and the second opening communicates with the outside atmosphere. The piston block 522 moves between the first and second openings. When the piston block 522 is close to the first opening, the weight of the float box 51 is minimal, and when the piston block 522 is close to the second opening, the weight of the float box 51 is maximal.

[0051] When it is necessary to adjust the bearing frame 21 to be submerged below the water surface, the connecting rod 523 applies a force to the piston block 522 toward the outside of the pumping cylinder 521, causing the piston block 522 to move from the first opening toward the second opening. As the piston block 522 moves, the first opening generates a suction force on the wastewater, drawing the wastewater into the pumping cylinder 521, thus increasing the total mass of the float box 51. When it is necessary to adjust the bearing frame 21 to float above the water surface, the connecting rod 523 applies a force to the piston block 522 toward the inside of the pumping cylinder 521, causing the piston block 522 to exert a squeezing force on the wastewater inside the pumping cylinder 521, squeezing the wastewater out of the pumping cylinder 521, thus reducing the total mass of the float box 51. By controlling the position of the piston block 522 inside the pumping cylinder 521, the mass of the water inside the pumping cylinder 521 can be adjusted, thereby achieving precise adjustment of the depth of the bearing frame 21 submerged below the water surface.

[0052] Reference Figure 9 and Figure 10 As shown: The buoyancy adjustment structure 5 also includes a synchronous adjustment structure 53, which is connected to two gravity adjustment components 52. The synchronous adjustment structure 53 is used to drive the two gravity adjustment components 52 to synchronously adjust the magnitude of the buoyancy force on the float box 51.

[0053] Specifically, the synchronous adjustment structure 53 includes a double-ended lead screw 531, the axis of which is parallel to the axis of the pull rod. Two connecting arms 532 are threaded onto the two threaded portions of the double-ended lead screw 531. One end of each connecting arm 532 is connected to a connecting rod 523. When the total mass of the float box 51 needs to be increased, the double-ended lead screw 531 rotates, and the two connecting arms 532 pull the two piston blocks 522 closer together through the two connecting rods 523, so that the two pumping cylinders 521 simultaneously pump in an equal amount of wastewater. When the total mass of the float box 51 needs to be decreased, the double-ended lead screw 531 rotates in the opposite direction, and the two connecting arms 532 push the two piston blocks 522 away from each other through the two connecting rods 523, so that the two pumping cylinders 521 simultaneously discharge an equal amount of wastewater. By controlling the simultaneous increase or discharge of an equal amount of wastewater at both ends of the float box 51 through the synchronous adjustment structure 53, the buoyancy at both ends of the float box 51 is made the same, thus preventing the float box 51 from tilting during the buoyancy adjustment process.

[0054] Reference Figure 9 and Figure 10 As shown: The buoyancy adjustment structure 5 also includes a filter assembly 54, which is connected to two gravity adjustment assemblies 52. The filter assembly 54 is used to filter the water entering the pumping cylinder 521.

[0055] Specifically, the filter assembly 54 includes a filter head 541 and two water guide pipes 542. The two water guide pipes 542 are respectively connected to the first openings of the two water pumps 521, and the filter head 541 is connected to the two water guide pipes 542.

[0056] If the wastewater is not filtered during the process of being pumped into the pumping cylinder 521, impurities in the wastewater may enter the pumping cylinder 521. During the process of discharging the wastewater, some impurities will remain in the pumping cylinder 521. As the number of pumping and discharging cycles increases, more and more impurities remain in the pumping cylinder 521, which hinders the movement of the piston block 522. Therefore, a filter assembly 54 is provided. During pumping, the filter head 541 filters the wastewater and intercepts impurities outside the filter head 541. The wastewater then flows along the two guide pipes 542 to the two pumping cylinders 521 respectively, thereby avoiding the retention of impurities in the wastewater in the pumping cylinder 521.

[0057] Reference Figure 11 and Figure 12 As shown: Fixing structures 23 are provided at the four corners of the support frame 21, and the fixing structures 23 fix the nitration component 3 to the support frame 21.

[0058] Specifically, the fixing structure 23 includes a fixing column 231, the middle part of which is connected to the bearing frame 21. Both ends of the fixing column 231 are movably provided with pressure plates 232, and both ends of the fixing column 231 are fitted with first elastic reset members 233. The two ends of the first elastic reset members 233 abut against the end of the fixing column 231 and the pressure plate 232, respectively.

[0059] After a period of use, impurities from wastewater will adhere to the surface of the nitration assembly 3, so it needs to be removed and cleaned periodically. Therefore, fixing structures 23 are installed at the four corners of the support frame 21. After placing the nitration assembly 3 on the support frame 21, a force is first applied to the pressure plate 232 towards the end of the fixing column 231, compressing the first elastic reset member 233 corresponding to the pressure plate 232. Then, the pressure plate 232 is pushed to rotate around the axis of the fixing column 231. When the pressure plate 232 rotates to the upper end of the nitration assembly 3, the pressure is released towards the end of the fixing column 231. The force applied to the end of the fixed column 231 causes the first elastic reset member 233 to apply a force toward the support frame 21 to the pressure plate 232, thus pressing the pressure plate 232 onto the nitration assembly 3 and fixing the nitration assembly 3 onto the support frame 21. When disassembling the nitration assembly 3, a force is applied to the pressure plate 232 toward the end of the fixed column 231, causing the pressure plate 232 to separate from the nitration assembly 3. Then, the pressure plate 232 is rotated, and finally the nitration assembly 3 is removed from the support plate, thereby realizing the installation and disassembly of the nitration assembly 3 and facilitating the cleaning of the nitration assembly 3.

[0060] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A simplified aquaponics device, comprising a water purification unit and an inlet pipe disposed on one side thereof, characterized in that, The water purification unit includes a water storage tank, a supporting structure, and at least two nitrification components. The water storage tank has an outlet on its side wall. The supporting structure is floating inside the water storage tank and includes a supporting frame. Multiple partition blocks are provided on the inner side of the supporting frame, dividing the internal space of the supporting frame into three parts: upper, middle, and lower. Multiple water inlet channels are provided on the side wall of the supporting frame, and the water inlet channels are connected to the middle part of the supporting frame. The two nitrification components are respectively installed in the upper and lower parts of the supporting frame. Rotary connection structures are provided at both ends of the supporting frame to assist the supporting frame in rotating around its own central axis. Buoyancy adjustment structures are provided on both sides of the supporting frame to provide buoyancy and control the depth of the supporting frame below the water surface. The rotating connection structure includes a horizontally arranged connecting beam, a rotating shaft rotatably connected to the middle of the connecting beam, a sliding connection component connected to the bearing frame at one end of the rotating shaft, and a stabilizing connection component for fixing the rotating shaft on the connecting beam. The stable connection assembly includes a bracket, a mounting plate, and an adjustment assembly; The mounting plate is located inside the bracket, and both ends of the mounting plate are equipped with insertion rods. The rotating shaft has mating holes corresponding to the insertion rods. The adjustment component is located in the middle of the bracket and is used to control the alignment of the insertion rod with the mating hole; The adjustment assembly includes an adjustment screw and a second guide rod. The adjustment screw is threadedly connected to the bracket, and the second guide rod is movably connected to the bracket. One end of the second guide rod is fixedly connected to the mounting plate, and the other end of the second guide rod is fitted with a third elastic reset member. The two ends of the third elastic reset member abut against the end of the second guide rod and the bracket, respectively. The sliding connection assembly includes a slider and multiple first guide rods parallel to the plane of the support frame, and the first guide rods are perpendicular to the rotation axis. Each first guide rod has a second elastic reset member sleeved at both ends. The slider is slidably connected to the multiple first guide rods, and both ends of the slider abut against the second elastic reset member.

2. The simplified aquaponics equipment according to claim 1, characterized in that, The rotating connection structure also includes a limiting guide assembly, which restricts the lifting direction of the load-bearing frame when the buoyancy adjustment structure is working.

3. The simplified aquaponics equipment according to claim 1, characterized in that, The buoyancy adjustment structure includes a pontoon and at least two gravity adjustment components; The pontoon includes a detachable lower pontoon and an upper pontoon, with the two ends of the lower pontoon connected to two connecting beams respectively; Two gravity adjustment components are respectively located at both ends inside the lower tank. The gravity adjustment components are used to adjust the gravity acting on the entire float.

4. The simplified aquaponics equipment according to claim 3, characterized in that, The gravity adjustment assembly includes a pump cylinder and a connecting rod coaxially arranged with the pump cylinder; The pump cylinder has a first opening and a second opening at both ends, and a piston block is installed inside the pump cylinder, which divides the inner cavity of the pump cylinder into two parts. The connecting rod is used to drive the piston block to move inside the pumping cylinder.

5. A simplified aquaponics device according to claim 3, characterized in that, The buoyancy adjustment structure also includes a synchronization adjustment structure, which is connected to two gravity adjustment components. The synchronization adjustment structure is used to drive the two gravity adjustment components to synchronously adjust the magnitude of the buoyancy force on the pontoon.

6. A simplified aquaponics device according to claim 5, characterized in that, The buoyancy adjustment structure also includes a filter assembly, which is connected to two gravity adjustment assemblies. The filter assembly is used to filter the water entering the pumping cylinder.

7. A simplified aquaponics device according to claim 1, characterized in that, Fixing structures are provided at the four corners of the support frame to fix the nitration component to the support frame.

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