A layered loach fry culture device

Abstract

This invention discloses a multi-stage loach fry cultivation device, belonging to the technical field of loach fry cultivation equipment. It includes a lower cultivation box, with support columns fixedly connected to the four corners of the top of the lower cultivation box. An upper cultivation box is fixedly connected to the top of each support column. A conveying mechanism is provided on one side of the lower cultivation box, and a filtration mechanism is provided at the top of the lower cultivation box. A water guiding and storage mechanism is provided at the bottom of the filtration mechanism. This invention, by setting up a multi-stage filtration mechanism, utilizes a filter sponge, a first filter layer, a second filter layer, and a third filter layer stacked inside the filter box to perform multi-stage fine filtration of the circulating water discharged from the upper cultivation box. This effectively intercepts various pollutants such as uneaten feed, feces, and suspended impurities in the water, completely solving the problems of rudimentary filtration structure, incomplete impurity filtration, and easy turbidity and deterioration of water in traditional equipment.

Description

Technical Field

[0001] This invention relates to the field of loach fry cultivation equipment technology, specifically a layered loach fry cultivation equipment. Background Technology

[0002] Loach meat is delicious and nutritious, making it an important economic aquaculture species in my country. Market demand continues to grow steadily. The cultivation of loach larvae is a core aspect of large-scale loach farming. Larvae are fragile and have poor resistance to adverse conditions, requiring extremely high levels of water cleanliness, water circulation, and water quality stability. Problems such as water quality deterioration, accumulation of impurities, and insufficient dissolved oxygen can easily lead to gill rot, hypoxia, and death in the larvae, severely reducing survival rates and hindering the large-scale development of the loach farming industry. Therefore, we propose a tiered loach larvae cultivation device.

[0003] To improve the utilization rate of seedling cultivation sites, the industry uses tiered cultivation equipment for loach fry cultivation. Compared with traditional single-layer cultivation ponds, it can save land and improve space utilization. However, the existing equipment has many defects that need to be optimized. First, the water circulation system is poorly designed, relying on simple water pumps to transport water. It lacks a multi-stage filtration structure, which cannot effectively filter and purify impurities, resulting in turbid water, water quality deterioration, and reduced fry survival rate. Second, the filtration structure is mostly fixed, and wastewater and impurities cannot be centrally treated, easily accumulating and polluting the water. Moreover, it is inconvenient to disassemble and clean, making it difficult to observe the internal conditions, resulting in low maintenance efficiency and failing to meet water quality maintenance needs. Third, the water supply pipes are mostly simply connected and fixed. During equipment operation, the pipes are prone to displacement, loosening, or falling off, causing water supply failure, affecting water circulation stability, and impacting the fry growth environment.

[0004] In summary, existing equipment suffers from problems such as poor water filtration, difficulty in removing impurities, inconvenient maintenance, unstable pipe fixing, and unstable water circulation, making it difficult to meet production needs. Therefore, a layered loach fry cultivation equipment is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a layered loach fry cultivation device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a layered loach fry cultivation device, comprising a lower cultivation box, wherein support columns are fixedly connected to the four corners of the top of the lower cultivation box, an upper cultivation box is fixedly connected to the top of the support columns, a conveying mechanism is provided on one side of the lower cultivation box, a filtration mechanism is provided on the top of the lower cultivation box, and a water guiding and storage mechanism is provided at the bottom of the filtration mechanism. The conveying mechanism includes a mounting plate, which is fixedly connected to one side of the lower incubator. The conveying mechanism is used to convey water from the lower incubator. The filtration mechanism includes two T-shaped plates, with each side of the two T-shaped plates fixedly connected to one side of each of the two support columns. The filtration mechanism is used to filter the water inside the upper incubator. The filtration mechanism and the conveying mechanism are used in conjunction. The water guiding and storage mechanism includes two connecting plates, one side of which is fixedly connected to the two sides of the lower incubator. The water guiding and storage mechanism is used to introduce and store wastewater and impurities generated during the cleaning process of the filtration mechanism. The water guiding and storage mechanism is used in conjunction with the filtration mechanism.

[0007] Preferably, a water pump is fixedly installed on the top of the mounting plate, the water inlet end of the water pump is fixedly connected to a water inlet pipe, one end of the water inlet pipe extends into the interior of the lower incubator and is fixedly installed with a filter head, and the water outlet end of the water pump is fixedly connected to a water outlet pipe, one end of the water outlet pipe extends into the interior of the upper incubator.

[0008] Preferably, a support rod is fixedly connected to one side of the top of the upper incubator, a first semi-circular retaining ring is fixedly connected to the top of the support rod, a second semi-circular retaining ring is provided on the top of the first semi-circular retaining ring, the opposite sides of the first and second semi-circular retaining rings are in contact with the surface of the water outlet pipe, a rotating shaft is fixedly connected to one side of the first semi-circular retaining ring, and the connection between the first and second semi-circular retaining rings is rotatably connected through the rotating shaft, a reinforcing plate is fixedly connected to one side of both the first and second semi-circular retaining rings, a first threaded rod is passed through the inner wall of the two reinforcing plates, and the two are threadedly connected through the first threaded rod.

[0009] Preferably, a filter box is fixedly connected between the two T-shaped plates on opposite sides. A first filter layer, a second filter layer, and a third filter layer are placed sequentially on the bottom of the inner wall of the filter box. A filter sponge is placed on top of the third filter layer, and the top of the filter sponge is in contact with the top of the inner wall of the filter box.

[0010] Preferably, a guide pipe is fixedly connected to the top of the filter box, one end of which extends into the upper incubation box and is threadedly connected to an interceptor head. A drain pipe is also fixedly connected to one side of the filter box, one end of which extends into the lower incubation box.

[0011] Preferably, a rubber sealing frame is fixedly fitted on one side of the filter box, a sealing cover is provided on one side of the rubber sealing frame, and a transparent observation window is fixedly installed on the inner wall of the sealing cover.

[0012] Preferably, two first fixing plates and two second fixing plates are fixedly connected to the two sides of the filter box and the two sides of the sealing cover, respectively. A second threaded rod is provided between the inner walls of the first fixing plate and the second fixing plate, and the two are threadedly connected by the second threaded rod.

[0013] Preferably, a guide rod is fixedly connected to one side of each of the two connecting plates, a sliding seat is slidably connected to the surface of the guide rod, and a water guide plate is fixedly connected to the top of the sliding seat. The water guide plate is used in conjunction with the filter box.

[0014] Preferably, the bottom of the sliding seat is threaded with a knob, and one end of the knob is in close contact with the bottom of the guide rod.

[0015] Preferably, a receiving box is fixed to the bottom of the water guide plate, a drain pipe is fixedly connected to one side of the receiving box, and a valve is fixedly installed on the inner wall of the drain pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention employs a multi-stage filtration mechanism, utilizing a filter sponge, a first filter layer, a second filter layer, and a third filter layer stacked inside the filter box. This allows for layered, multi-stage, and refined filtration of the circulating water discharged from the upper cultivation tank. It effectively intercepts various pollutants such as uneaten feed, feces, and suspended impurities in the water, completely solving the problems of rudimentary filtration structures, incomplete impurity filtration, and water turbidity and deterioration inherent in traditional equipment. Simultaneously, in conjunction with the water pump and inlet pipe filter head of the conveying mechanism, a complete closed-loop water circulation system is formed, continuously purifying the cultivation water, stabilizing water cleanliness and dissolved oxygen levels, significantly improving the growth environment for loach fry, effectively reducing the probability of gill rot and death due to oxygen deficiency, and significantly increasing the survival rate of loach fry. This invention features a detachable sealing cover and a water-guiding and storage mechanism. The sealing cover, combined with a rubber sealing frame, ensures the airtightness of the filter box during operation, preventing water leakage. A transparent observation window allows for real-time and intuitive observation of impurity accumulation and filter media wear inside the filter box, facilitating timely monitoring of equipment operation. The sealing cover can be quickly opened by removing the second threaded rod for replacement and cleaning of the internal filter media, making operation convenient and efficient. Wastewater and impurities generated during filtration and maintenance are guided by a water guide plate to a receiving box for centralized collection, and then discharged through a drain pipe and valve for unified treatment. This eliminates secondary water pollution caused by impurity residue accumulation, completely solving the problems of difficult impurity handling, cumbersome maintenance, and low work efficiency associated with traditional equipment, and meeting the needs of high-frequency water quality maintenance during seedling cultivation. This invention utilizes an openable semi-circular retaining ring fixing structure. The first and second semi-circular retaining rings work together to wrap around the water outlet pipe, and a first threaded rod, along with a reinforcing plate, secures it. Compared to traditional simple overlapping pipe fixing methods, this significantly improves the stability of the water supply pipe, effectively preventing pipe displacement, loosening, or detachment during long-term operation. This ensures continuous, stable, and trouble-free water circulation and maintains a stable water environment inside the cultivation tank. Furthermore, the layered upper and lower cultivation tank structure retains the advantages of high space utilization and minimal footprint. While enabling large-scale seedling cultivation, this invention comprehensively optimizes equipment performance, adapting to the needs of large-scale, standardized loach seedling cultivation and production, thus contributing to the large-scale development of the loach farming industry. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side perspective three-dimensional schematic diagram of the overall structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of the local structure at point A in the middle; Figure 4 This is a schematic diagram of the connection of the filtration mechanism in this invention; Figure 5 For the present invention Figure 4 Enlarged view of the local structure at point B; Figure 6 This is a side sectional view of a partial structure in this invention; Figure 7 This is a schematic diagram of the connection of a partial structure in this invention; Figure 8 This is a schematic diagram of the connection of the water-guiding and storage mechanism in this invention; Figure 9 This is a side view connection diagram of the water guiding and storage mechanism in this invention.

[0018] In the diagram: 1. Lower incubator; 2. Conveying mechanism; 201. Mounting plate; 202. Water pump; 203. Inlet pipe; 204. Outlet pipe; 205. Filter head; 3. Filtration mechanism; 301. T-shaped plate; 302. Sealing cover; 303. Filter box; 304. Drain pipe; 305. Transparent observation window; 306. Rubber sealing frame; 307. First filter layer; 308. Second filter layer; 309. Third filter layer; 310. Filter sponge; 311. Interception head; 12. Guide pipe; 4. Water storage mechanism; 401. Receiver box; 402. Water guide plate; 403. Connecting plate; 404. Guide rod; 405. Drain pipe; 406. Valve; 407. Knob; 408. Sliding seat; 5. Support column; 6. Support rod; 7. Upper incubator; 8. Rotating shaft; 9. Second semi-circular retaining ring; 10. First threaded rod; 11. Reinforcing plate; 12. First semi-circular retaining ring; 13. First fixing plate; 14. Second fixing plate; 15. Second threaded rod. Detailed Implementation

[0019] 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.

[0020] Example 1: Please refer to Figures 1-9 The present invention provides a technical solution: a layered loach fry cultivation device, including a lower cultivation box 1, with support columns 5 fixedly connected to the four corners of the top of the lower cultivation box 1, an upper cultivation box 7 fixedly connected to the top of the support columns 5, a conveying mechanism 2 provided on one side of the lower cultivation box 1, a filtering mechanism 3 provided on the top of the lower cultivation box 1, and a water guiding and storage mechanism 4 provided at the bottom of the filtering mechanism 3. The conveying mechanism 2 includes a mounting plate 201, which is fixedly connected to one side of the lower incubator 1. The conveying mechanism 2 is used to convey water in the lower incubator 1. The filtration mechanism 3 includes two T-shaped plates 301, and the two sides of the two T-shaped plates 301 are fixedly connected to the opposite side of the two support columns 5 respectively. The filtration mechanism 3 is used to filter the water inside the upper incubator 7. The filtration mechanism 3 and the conveying mechanism 2 are used together. The water guiding and storage mechanism 4 includes two connecting plates 403. The opposite sides of the two connecting plates 403 are fixedly connected to the two sides of the lower incubator 1. The water guiding and storage mechanism 4 is used to introduce and store wastewater and impurities generated during the cleaning process of the filter mechanism 3. The water guiding and storage mechanism 4 is used in conjunction with the filter mechanism 3.

[0021] As a further limitation of the conveying mechanism 2 of the present invention, a water pump 202 is fixedly installed on the top of the mounting plate 201. The water inlet end of the water pump 202 is fixedly connected to a water inlet pipe 203. One end of the water inlet pipe 203 extends into the interior of the lower incubator 1 and is fixedly installed with a filter head 205. The water outlet end of the water pump 202 is fixedly connected to a water outlet pipe 204. One end of the water outlet pipe 204 extends into the interior of the upper incubator 7. Through the cooperation of the water pump 202, the water inlet pipe 203, the filter head 205, and the water outlet pipe 204, a closed-loop water circulation conveying system is constructed between the lower incubator 1 and the upper incubator 7. The filter head 205 can pre-treat the water inside the lower cultivation tank 1, intercepting large particles of impurities in the water and preventing them from entering the water pump 202 and causing equipment blockage or damage. This ensures the long-term stable operation of the water pump 202. The water pump 202 can automatically transport the water inside the lower cultivation tank 1 to the upper cultivation tank 7, realizing the circulation of the cultivation water. This effectively increases the dissolved oxygen content of the cultivation water and prevents loach fry from dying due to stagnant water and lack of oxygen. At the same time, it provides circulating power for the multi-stage filtration and purification operation of the subsequent filtration mechanism 3, ensuring the continuous and stable operation of the entire water environment purification system. A support rod 6 is fixedly connected to one side of the top of the upper incubator 7. A first semi-circular retaining ring 12 is fixedly connected to the top of the support rod 6. A second semi-circular retaining ring 9 is provided on the top of the first semi-circular retaining ring 12. The opposite sides of the first semi-circular retaining ring 12 and the second semi-circular retaining ring 9 are in contact with the surface of the water outlet pipe 204. A rotating shaft 8 is fixedly connected to one side of the first semi-circular retaining ring 12, and the connection between the first semi-circular retaining ring 12 and the second semi-circular retaining ring 9 is rotatably connected through the rotating shaft 8. A reinforcing plate 11 is fixedly connected to one side of both the first semi-circular retaining ring 12 and the second semi-circular retaining ring 9. A first threaded rod 10 passes through the inner wall of the two reinforcing plates 11, and the two are threadedly connected by the first threaded rod 10. The water outlet is locked and fixed by the openable and closable first semi-circular retaining ring 12 and the second semi-circular retaining ring 9 in cooperation with the first threaded rod 10. Pipe 204 replaces the traditional method of simple splicing and binding of pipes. It uses the pivot 8 to open and close the first semi-circular retaining ring 12 and the second semi-circular retaining ring 9, which is convenient for disassembly and assembly and facilitates the maintenance and replacement of the outlet pipe 204. The first semi-circular retaining ring 12 and the second semi-circular retaining ring 9 wrap around the outlet pipe 204 and are locked in place with the side reinforcing plates 11 and the first threaded rod 10. This greatly improves the fixation of the water supply pipe and can effectively avoid problems such as pipe displacement, loosening, falling off and leakage caused by the vibration of the water pump 202 and the impact of water during long-term operation of the equipment. It ensures that the water circulation process is continuous, stable and fault-free, and maintains a stable water supply effect in the upper incubation box 7. It also avoids sudden changes in the water environment caused by water supply failure and ensures a stable growth environment for loach fry.

[0022] The specific implementation method of this embodiment is as follows: In use, loach fry are placed into the lower cultivation box 1 and the upper cultivation box 7 for stratified cultivation. After the water pump 202 is started, the water pump 202 draws water from the lower cultivation box 1 through the water inlet pipe 203. The filter head 205 intercepts large particles of impurities in the water in advance to prevent them from entering the water pump 202 and causing blockage. Then the water is transported to the upper cultivation box 7 through the water outlet pipe 204. When fixing the water outlet pipe 204, the water outlet pipe 204 is placed inside the first semi-circular retaining ring 12 in advance. The second semi-circular retaining ring 9 is rotated to wrap the water outlet pipe 204. Then the first threaded rod 10 is tightened, which drives the two reinforcing plates 11 to stick together and lock tightly, thus completing the fixing of the water outlet pipe 204 and ensuring the stability of the water supply process.

[0023] Example 2: Please refer to Figures 1-9 The present invention provides a technical solution: a layered loach seedling cultivation device, which makes corresponding improvements to the technical problems mentioned in the background art.

[0024] As a further definition of the filtration mechanism 3 of the present invention, a filter box 303 is fixedly connected between the two T-shaped plates 301 on opposite sides. A first filter layer 307, a second filter layer 308, and a third filter layer 309 are sequentially placed on the bottom of the inner wall of the filter box 303. A filter sponge 310 is placed on top of the third filter layer 309, and the top of the filter sponge 310 contacts the top of the inner wall of the filter box 303. The filter sponge 310, the first filter layer 307, the second filter layer 308, and the third filter layer 309 are arranged in layers inside the filter box 303 to form a gradient multi-stage fine filtration system, a layered filtration structure from top to bottom. It can sequentially intercept pollutants of different particle sizes in the water. The filter sponge 310 can intercept uneaten food and suspended flocculent impurities in the water. The first filter layer 307, the second filter layer 308, and the third filter layer 309 can filter fine silt, fry excrement, and small floating debris in stages. Compared with the traditional single-layer filter structure, it has higher filtration precision and more thorough purification effect. It can purify the circulating water in all aspects, eliminate water turbidity and water quality deterioration, and continuously maintain the cleanliness of the cultivation water. It is suitable for the growth requirements of loach fry for high-cleanliness cultivation water, and ensures the healthy growth of loach fry from the water quality level, reducing the probability of fry disease and death. A guide pipe 312 is fixedly connected to the top of the filter box 303. One end of the guide pipe 312 extends into the upper incubator 7 and is threadedly connected to an interceptor head 311. A drain pipe 304 is also fixedly connected to one side of the filter box 303. One end of the drain pipe 304 extends into the lower incubator 1. Through the connection structure of the guide pipe 312, the interceptor head 311, and the side drain pipe 304 of the filter box 303, water from the upper incubator 7 can be stably introduced into the filter box 303 through the guide pipe 312 to complete the water filtration and purification operation. The end of the guide pipe 312... The threaded interceptor head 311 can intercept loach fry and large floating debris at the water source of the upper incubation box 7, effectively preventing the fry from being sucked into the filter box 303 and causing death or injury. At the same time, it avoids large debris from clogging the pipes and filter structure, ensuring the safe operation of the equipment. After filtration, the clean water can be automatically returned to the lower incubation box 1 through the drain pipe 304, realizing a complete closed-loop circulation purification of the upper and lower water bodies, continuously optimizing the water quality of the incubation water, ensuring the automated and normalized operation of the water circulation system, eliminating the need for frequent manual water changes, and greatly reducing the workload of seedling maintenance. A rubber sealing frame 306 is fixedly fitted on one side of the filter box 303, and a sealing cover 302 is provided on one side of the rubber sealing frame 306. A transparent observation window 305 is fixedly installed on the inner wall of the sealing cover 302. By setting the structure of the rubber sealing frame 306, the sealing cover 302 and the transparent observation window 305 at the end of the filter box 303, the rubber sealing frame 306 fills the connection gap between the filter box 303 and the sealing cover 302, which can greatly improve the overall sealing performance of the equipment, effectively prevent the filtered water from leaking and splashing out, avoid water waste and damp water accumulation around the equipment. The transparent observation window 305 embedded in the sealing cover 302 allows the staff to observe the filter media blockage, the thickness of impurity accumulation and the water filtration status in real time without disassembling the equipment or stopping the equipment operation. This makes it easier for the staff to accurately judge the operating condition of the equipment, arrange filter media cleaning, replacement and equipment maintenance in a timely manner, avoid water purification failure caused by filter media failure and blockage, and ensure the continuous and efficient operation of water purification work. Two first fixing plates 13 and two second fixing plates 14 are fixedly connected to both sides of the filter box 303 and the sealing cover 302, respectively. A second threaded rod 15 is provided between the inner walls of the first fixing plates 13 and the second fixing plates 14, and the two are threadedly connected by the second threaded rod 15. By setting a locking assembly structure between the fixing plates and the second threaded rod 15 between the filter box 303 and the sealing cover 302, a detachable fixed connection between the sealing cover 302 and the filter box 303 is achieved through the cooperation of the first fixing plates 13, the second fixing plates 14, and the second threaded rod 15. With high strength and good sealing performance, it can be adapted to the water circulation working environment of the equipment for a long time and is not prone to loosening, air leakage, or water leakage. At the same time, the assembly structure is simple and convenient to disassemble and assemble. The staff only needs to remove the second threaded rod 15 to quickly open and close the sealing cover 302, which greatly facilitates the staff to clean, replace, and repair the filter sponge 310, the first filter layer 307, the second filter layer 308, and the third filter layer 309 inside the filter box 303. This effectively improves the equipment maintenance efficiency, reduces the difficulty of equipment operation and maintenance, and meets the high-frequency water purification and maintenance needs in the seedling process.

[0025] The specific implementation method of this embodiment is as follows: In use, first, place the entire device in place, connect the external power supply, inject culture water of appropriate levels into each layer of the cultivation tank, and release loach fry to begin cultivation. The water in the upper cultivation tank 7, carrying uneaten food and impurities, flows into the guide pipe 312 under gravity. The interceptor head 311 at the end of the guide pipe 312 blocks the loach fry and large debris within the upper cultivation tank 7. After entering the filter tank 303, the water first passes through the filter sponge 310, which intercepts large-particle uneaten food and suspended flocculent impurities. Subsequently, the water passes through the third filter layer 309, the second filter layer 308, and the first filter layer 307 in sequence for filtration. Fine silt, fry excrement, and tiny floating impurities are intercepted layer by layer, completing the process. After filtration and purification, the clean water flows back to the lower cultivation tank 1 through the drain pipe 304, automatically completing the closed-loop circulation purification of the upper and lower cultivation water, continuously maintaining water quality cleanliness. Staff can check the clogging and impurity accumulation of the filter media inside the filter box 303 at any time through the transparent observation window 305 on the sealing cover 302. When the filter media is clogged and needs to be cleaned or replaced, simply unscrew the second threaded rod 15, remove the sealing cover 302, and the internal filter media can be directly taken out for cleaning or replacement. The operation is simple and convenient. After maintenance, the sealing cover 302 can be reinstalled to restore the equipment operation. This structure realizes automated layered filtration and purification of the cultivation water, which not only ensures the growth water quality of loach fry but also greatly reduces the workload of manual water changing and maintenance.

[0026] Example 3: Please refer to Figures 1-9 The present invention provides a technical solution: a layered loach seedling cultivation device, which makes corresponding improvements to the technical problems mentioned in the background art.

[0027] As a further definition of the water guiding and storage mechanism 4 of the present invention, a guide rod 404 is fixedly connected to one side of the two connecting plates 403. A sliding seat 408 is slidably connected to the surface of the guide rod 404. A water guiding plate 402 is fixedly connected to the top of the sliding seat 408. The water guiding plate 402 is used in conjunction with the filter box 303. By setting the assembly structure of the guide rod 404, the sliding seat 408 and the water guiding plate 402 of the water guiding and storage mechanism 4, the guide rod 404 fixedly installed between the two connecting plates 403 provides stable sliding guide support for the sliding seat 408, so that the sliding seat... 408 can drive the water guide plate 402 to move smoothly laterally. The staff can flexibly adjust the installation position of the water guide plate 402 according to the disassembly, cleaning operation position of the filter box 303, so that the water guide plate 402 is precisely aligned with the bottom of the filter box 303. The water guide plate 402 can accurately receive the wastewater and impurities dripping and rinsing during the maintenance of the filter box 303, preventing wastewater and impurities from falling directly onto the surface of the cultivation equipment or inside the cultivation box, effectively preventing secondary pollution of the cultivation water by impurities, and realizing the centralized diversion and collection of wastewater and impurities, providing structural support for subsequent unified sewage treatment. A knob 407 is threadedly connected to the bottom of the sliding seat 408. One end of the knob 407 is in close contact with the bottom of the guide rod 404. By setting the locking structure of the knob 407 at the bottom of the sliding seat 408, after the operator adjusts the position of the sliding seat 408 and the water guide plate 402 through the guide rod 404, the operator can tighten the knob 407 to make the end of the knob 407 fit tightly against the surface of the guide rod 404. The friction force is used to lock the sliding seat 408 in place, which effectively prevents the sliding seat 408 from shifting or deviating during equipment operation and water impact. This ensures that the water guide plate 402 is always in a precise receiving position, stabilizing the flow and collection effect of wastewater and impurities. At the same time, the locking structure of the knob 407 is simple to operate and flexible to adjust. It can quickly complete the position fixing and unlocking adjustment, adapting to the position adjustment needs under different maintenance conditions, and improving the flexibility and stability of equipment use. A receiving box 401 is fixed to the bottom of the water guide plate 402. A drain pipe 405 is fixedly connected to one side of the receiving box 401. A valve 406 is fixedly installed on the inner wall of the drain pipe 405. By setting up the receiving box 401, drain pipe 405 and valve 406 at the bottom of the water guide plate 402, the wastewater and impurities guided by the water guide plate 402 can be uniformly collected into the receiving box 401 for centralized storage, avoiding wastewater from flowing everywhere and impurities from scattering and accumulating. The drain pipe 405 connected to the side of the receiving box 401 is connected to... The valve 406 enables controllable sewage discharge. During normal filtration operations, valve 406 is closed to prevent leakage of circulating airflow in the cultivation water, maintain stable negative pressure in the internal water circulation, and ensure filtration and purification effects. After equipment maintenance, valve 406 is opened to discharge the wastewater and impurities accumulated inside the receiving box 401. Sewage discharge is convenient and thorough, with no residue accumulation, thus eliminating secondary pollution of the water body caused by residual impurities and wastewater, and further ensuring the cleanliness and stability of the water environment for loach fry cultivation.

[0028] The specific implementation method of this embodiment is as follows: When performing routine cleaning and maintenance on the filter box 303, first loosen the knob 407. The end of the knob 407 disengages from the guide rod 404, releasing the locking state of the sliding seat 408. Push the sliding seat 408 along the guide rod 404, causing the water guide plate 402 to move directly below the filter box 303. Tighten the knob 407 to relock the sliding seat 408. At this time, the water guide plate 402 can receive the wastewater dripping and the impurities falling off during the disassembly and cleaning of the filter box 303. The wastewater and impurities flow along the inclined water guide plate 402 into the receiving box 401 below for centralized temporary storage. After the maintenance work is completed, open the valve 406 to discharge the wastewater and impurities collected in the receiving box 401 through the drain pipe 405, completing the centralized cleaning of impurities and wastewater, effectively preventing impurities and wastewater from dripping and polluting the water inside the incubator during the maintenance process.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] 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 layered loach fry cultivation device, comprising a lower cultivation box (1), characterized in that: The lower incubator (1) has four fixed support columns (5) at the top corners, and the upper incubator (7) is fixedly connected to the top of the support columns (5). A conveying mechanism (2) is provided on one side of the lower incubator (1), a filtration mechanism (3) is provided on the top of the lower incubator (1), and a water guiding and storage mechanism (4) is provided at the bottom of the filtration mechanism (3). The conveying mechanism (2) includes a mounting plate (201), which is fixedly connected to one side of the lower incubator (1). The conveying mechanism (2) is used to convey water in the lower incubator (1). The filtration mechanism (3) includes two T-shaped plates (301), and the two sides of the two T-shaped plates (301) are fixedly connected to the opposite side of the two support columns (5). The filtration mechanism (3) is used to filter the water inside the upper incubator (7). The filtration mechanism (3) and the conveying mechanism (2) are used together. The water guiding and storage mechanism (4) includes two connecting plates (403). The opposite sides of the two connecting plates (403) are fixedly connected to the two sides of the lower incubator (1). The water guiding and storage mechanism (4) is used to introduce and store wastewater and impurities generated during the cleaning process of the filtration mechanism (3). The water guiding and storage mechanism (4) is used in conjunction with the filtration mechanism (3).

2. The layered loach fry cultivation equipment according to claim 1, characterized in that: A water pump (202) is fixedly installed on the top of the mounting plate (201). The water inlet end of the water pump (202) is fixedly connected to a water inlet pipe (203). One end of the water inlet pipe (203) extends into the interior of the lower incubator (1) and is fixedly installed with a filter head (205). The water outlet end of the water pump (202) is fixedly connected to a water outlet pipe (204). One end of the water outlet pipe (204) extends into the interior of the upper incubator (7).

3. The layered loach fry cultivation equipment according to claim 1, characterized in that: A support rod (6) is fixedly connected to one side of the top of the upper incubator (7). A first semi-circular retaining ring (12) is fixedly connected to the top of the support rod (6). A second semi-circular retaining ring (9) is provided on the top of the first semi-circular retaining ring (12). The opposite sides of the first semi-circular retaining ring (12) and the second semi-circular retaining ring (9) are in contact with the surface of the water outlet pipe (204). A rotating shaft (8) is fixedly connected to one side of the first semi-circular retaining ring (12). The connection between the first semi-circular retaining ring (12) and the second semi-circular retaining ring (9) is rotatably connected through the rotating shaft (8). A reinforcing plate (11) is fixedly connected to one side of both the first semi-circular retaining ring (12) and the second semi-circular retaining ring (9). A first threaded rod (10) passes through the inner wall of the two reinforcing plates (11), and the two are threadedly connected through the first threaded rod (10).

4. The layered loach fry cultivation equipment according to claim 1, characterized in that: A filter box (303) is fixedly connected between the two T-shaped plates (301) on opposite sides. A first filter layer (307), a second filter layer (308), and a third filter layer (309) are placed sequentially on the bottom of the inner wall of the filter box (303). A filter sponge (310) is placed on top of the third filter layer (309), and the top of the filter sponge (310) is in contact with the top of the inner wall of the filter box (303).

5. The layered loach fry cultivation equipment according to claim 4, characterized in that: The top of the filter box (303) is fixedly connected to a guide pipe (312), one end of which extends into the upper incubator (7) and is threadedly connected to an interceptor head (311). A drain pipe (304) is also fixedly connected to one side of the filter box (303), one end of which extends into the lower incubator (1).

6. The layered loach fry cultivation equipment according to claim 4, characterized in that: A rubber sealing frame (306) is fixedly fitted on one side of the filter box (303), and a sealing cover (302) is provided on one side of the rubber sealing frame (306). A transparent observation window (305) is fixedly installed on the inner wall of the sealing cover (302).

7. A layered loach fry cultivation device according to claim 4, characterized in that: The filter box (303) is fixedly connected to two first fixing plates (13) and two second fixing plates (14) on both sides of the sealing cover (302). A second threaded rod (15) is provided between the inner walls of the first fixing plate (13) and the second fixing plate (14), and the two are threadedly connected by the second threaded rod (15).

8. The layered loach fry cultivation equipment according to claim 1, characterized in that: Guide rods (404) are fixedly connected to one side of the two connecting plates (403), and sliding seats (408) are slidably connected to the surface of the guide rods (404). A water guide plate (402) is fixedly connected to the top of the sliding seat (408), and the water guide plate (402) is used in conjunction with the filter box (303).

9. A layered loach fry cultivation device according to claim 8, characterized in that: The bottom of the sliding seat (408) is threaded with a knob (407), one end of which is in close contact with the bottom of the guide rod (404).

10. A layered loach fry cultivation device according to claim 8, characterized in that: The bottom of the water guide plate (402) is fixed with a receiving box (401), and a drain pipe (405) is fixedly connected to one side of the receiving box (401). A valve (406) is fixedly installed on the inner wall of the drain pipe (405).

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