Ecological culture net cage based on marine ranch

Abstract

The invention relates to the technical field of fishery breeding, and discloses an ecological breeding net cage based on a marine ranch. The net cage body comprises a culture platform which is integrally designed to be annular, is composed of a buoy and a steel structure framework and floats on the sea surface; breeding a netting; the lifting device controls the annular guide rail to sink layer by layer, so that the cleaning robot can move along a fixed circumferential track, the working path of the cleaning robot can be ensured, and no missing area is ensured; the annular conical pre-scraping ring makes contact with and opens the breeding netting, most attachments can be removed in advance, and the follow-up cleaning burden is relieved; by recovering the power medium and guiding the power medium to the to-be-cleaned area again, multi-angle washing can be formed on the breeding netting; and by means of the flow dividing block, the secondarily-utilized power medium can be sprayed to the surface of the breeding netting in a straight mode and an inclined mode, stubborn attachments can be subjected to double loosening, the cleaning effect of the cleaning robot is improved, and cleaning residues are reduced.

Description

Technical Field

[0001] This invention relates to the field of aquaculture technology, specifically to ecological aquaculture cages based on marine ranches. Background Technology

[0002] Cage aquaculture, as an important production method in marine fisheries, is widely used globally. With the expansion of aquaculture scale and the extension of the aquaculture cycle, the problem of biological attachment to the surface of aquaculture nets has become increasingly prominent. The large-scale attachment of marine organisms such as barnacles, oysters, and algae to aquaculture nets not only clogs the mesh and hinders water exchange, leading to a decrease in dissolved oxygen levels and the accumulation of metabolic waste within the net cage, but also significantly increases the weight and resistance of the aquaculture nets, affecting the structural safety of the net cages. It can even lead to serious economic losses such as net damage and fish escape due to excessive localized stress.

[0003] In recent years, underwater aquaculture net cleaning robots have gradually become the mainstream technology for net cage cleaning. These robots are usually driven by tracks or a negative pressure structure on their backs, crawling or suspending on the surface of aquaculture nets, and using rotating brushes and high-pressure water jets to remove the attached materials.

[0004] However, in practical applications: because aquaculture netting is constantly in a state of dynamic deformation underwater, it is affected by multiple hydraulic factors such as ocean currents, tides, and waves, resulting in irregular swaying and localized indentation deformation. When the aquaculture netting cleaning robot operates on such dynamic surfaces, it is difficult to maintain a precise relative position between the robot and the aquaculture netting. Furthermore, due to the elastic deformation and dynamic swaying of the aquaculture netting, the contact pressure between the robot's brush head and the surface of the aquaculture netting varies greatly. Excessive pressure may damage the aquaculture netting material, while insufficient pressure cannot effectively remove hard-shelled deposits. Summary of the Invention

[0005] The purpose of this invention is to provide an ecological aquaculture cage based on marine ranching to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an ecological aquaculture cage based on marine ranching, comprising: a cage body;

[0007] The cage body includes:

[0008] The aquaculture platform has an overall circular design and is composed of pontoons and a steel frame, floating on the sea surface;

[0009] The aquaculture netting is installed below the aquaculture platform and has an overall bowl-shaped design.

[0010] Also includes:

[0011] The auxiliary components are located between the aquaculture platform and the aquaculture netting, including a sinking component located inside the aquaculture netting to guide the cleaning robot to move along a designated trajectory and assist in cleaning, and a guide component located on the sinking component to improve the cleaning effect.

[0012] Preferably, the sinking component includes:

[0013] The lifting device consists of four units, which are evenly distributed in a circular array inside the aquaculture platform.

[0014] The circular guide rail is designed in a ring shape, with an outer diameter consistent with the aquaculture netting. Its upper end is fixed to the lifting device via hooks.

[0015] The slide block slides within the annular guide rail, which can assist the cleaning robot in making standardized circular movements and cleaning the aquaculture netting.

[0016] Preferably, the sinking component further includes:

[0017] The flow guide cavity is located below the annular guide rail and has a hollow design, with an open lower part.

[0018] The conical pre-scraping ring is a ring-shaped design that is integrally fixed to the outer surface of the guide cavity. Its cross-sectional shape is an inverted flat-top conical design.

[0019] The side of the flow guide cavity closest to the direction of seawater inflow has a rounded corner design.

[0020] Preferably, the upper diameter of the conical pre-scraping ring is larger than the inner diameter of the aquaculture net.

[0021] Preferably, the sinking component further includes:

[0022] There are two guide bars, with inverted and upright flat-topped cones respectively. They are fixed to the inner and outer edges of the lower end of the flow guide cavity. The cross-sectional shape of the two guide bars is V-shaped, which can guide the seawater below into the flow guide cavity and guide it towards the aquaculture netting along the conical pre-scraped ring surface when the annular guide rail sinks.

[0023] Preferably, the sinking component further includes:

[0024] An angled guide vane is located below the outer side of the guide cavity, and its cross-sectional shape is consistent with that of the conical pre-scraping ring.

[0025] Among them, the overall slope of the inclined guide vane is greater than that of the conical pre-scraping ring.

[0026] Preferably, the guide includes:

[0027] The media recovery and distribution chamber is fixed to one side of the slide, and its middle part is hollow.

[0028] The media recovery port is located on the side of the media recovery and distribution chamber near the aquaculture net. It can guide the power media on the back of the cleaning robot into the media recovery and distribution chamber and make secondary use along its internal curvature branches.

[0029] There are two drainage outlets, symmetrically located on both sides of the media recovery and distribution chamber. The two drainage outlets correspond to the cleaned and uncleaned areas of the aquaculture netting, respectively.

[0030] Preferably, the guide also includes:

[0031] The diversion block is vertically installed in the medium recovery and distribution chamber and located at the drain outlet. Its top-view cross-section is a right-angled triangle, which can divert the flowing medium passing through the drain outlet and spray it out in a straight line and at an angle.

[0032] Preferably, the guide further includes:

[0033] The front-mounted spray branch pipe connects to the lower part of the media recovery and distribution chamber. The overall design is bent, corresponding to the surface of the aquaculture net and the part to be cleaned by the cleaning robot.

[0034] Preferably, the guide further includes:

[0035] Four magnetic blocks are evenly distributed on the side of the media recycling and distribution chamber near the aquaculture netting. They can be magnetically attracted to the cleaning robot during installation and ensure that it operates in the correct posture.

[0036] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0037] 1. The present invention controls the ring guide rail to sink layer by layer to a predetermined depth through the lifting device, so that the cleaning robot can move along a fixed circumferential trajectory in conjunction with the ring guide rail and the slide, which can ensure the working path of the cleaning robot and ensure that there are no missed areas on the surface of the aquaculture net.

[0038] 2. The ring-shaped conical pre-scraping ring contacts and opens the aquaculture netting during the sinking of the ring guide rail. The combined downward and outward scraping force generated by its edge can remove most of the stubborn attachments in advance, which can effectively reduce the cleaning burden of the subsequent cleaning robot.

[0039] 3. The power medium discharged from the back of the cleaning robot is recovered by the medium recovery and distribution chamber, and redirected to the area to be cleaned through internal curved branches, which can form a multi-angle flush on the aquaculture net; and by using the diversion block, the secondary power medium can be sprayed onto the surface of the aquaculture net in a straight and oblique manner, which can have a double loosening effect on stubborn attachments, effectively improving the cleaning effect of the cleaning robot and reducing cleaning residue. Attached Figure Description

[0040] Figure 1 A schematic diagram of the main structure of the cage body provided by the present invention;

[0041] Figure 2 This is a partial schematic diagram of the cage body structure provided by the present invention;

[0042] Figure 3 Provided by the present invention Figure 2 Enlarged structural diagram at point A;

[0043] Figure 4 This is a cross-sectional view of the sinking component provided by the present invention;

[0044] Figure 5 This is a side view of the sinking component provided by the present invention.

[0045] Figure 6 A schematic diagram showing the structural connection between the sinker and the guide provided by the present invention;

[0046] Figure 7 This is a schematic diagram of the structure of the guide provided by the present invention;

[0047] Figure 8 A partial structural schematic diagram of the media recovery and distribution cavity provided by the present invention;

[0048] Figure 9 This is a top view schematic diagram of the structure of the diversion block provided by the present invention.

[0049] In the diagram: 100, aquaculture platform; 110, aquaculture net; 200, auxiliary components; 210, lifting device; 211, ring guide rail; 212, slide block; 220, flow guide cavity; 221, guide strip; 222, inclined flow guide plate; 223, conical pre-scraping ring; 230, media recovery and distribution cavity; 231, media recovery port; 232, magnetic block; 233, pre-jet branch pipe; 234, drain outlet; 235, diverter block. Detailed Implementation

[0050] 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.

[0051] Please see Figure 1 - Figure 9 As shown, the ecological aquaculture cage based on marine ranching includes: the cage body;

[0052] The cage body includes: an aquaculture platform 100, which is a ring-shaped design consisting of pontoons and a steel frame that floats on the sea surface; the aquaculture platform 100 is constructed by combining high-density polyethylene pontoons with a hot-dip galvanized steel frame. The pontoons are typically 0.8 to 1.2 meters in diameter and are anchored to the designated sea area by an anchor chain system, floating stably on the sea surface and providing an operating base for the entire system.

[0053] The aquaculture net 110 is installed below the aquaculture platform 100 and has an overall bowl-shaped design. The aquaculture net 110 is made of high-strength polyethylene or nylon and has an overall bowl-shaped or frustum-shaped design. The upper edge is firmly connected to the frame of the aquaculture platform 100. The bottom of the aquaculture net 110 is sewn with an annular bottom ring, and multiple counterweights are evenly spaced on the bottom ring. The total weight is sufficient to maintain the basic bowl-shaped unfolded shape of the aquaculture net 110 under the action of ocean currents, preventing excessive concavity or closure. Its depth can be adjusted according to aquaculture needs.

[0054] It also includes: an auxiliary component 200, which is set between the aquaculture platform 100 and the aquaculture net 110, including a sinking component set inside the aquaculture net 110 to guide the cleaning robot to move along a specified trajectory and assist in cleaning, and a guide component set on the sinking component to improve the cleaning effect.

[0055] The sinking components include: lifting devices 210, of which four are evenly distributed in a ring array inside the aquaculture platform 100; the lifting device 210 mainly consists of a waterproof electric winch, whose rated lifting force needs to be calculated and determined based on the total weight of the ring guide rail 211 and accessories and the ocean current load. Typically, the lifting capacity of a single winch is not less than 2 tons. The four winches are driven by the same controller, and encoder feedback is used to realize synchronous closed-loop control of the cable winding and unwinding length, ensuring that the ring guide rail 211 remains horizontal when it is lowered or lifted.

[0056] The annular guide rail 211 is a ring-shaped design with an outer diameter consistent with that of the aquaculture net 110. Its upper end is fixed to the lifting device 210 via a hook. The annular guide rail 211 is made of 316L stainless steel or aluminum alloy profile and features a closed annular design. Its outer diameter matches the inner diameter of the aquaculture net 110 at the corresponding depth, with a tolerance controlled within ±5 cm to ensure a reasonable distance from the surface of the aquaculture net 110. The upper end of the annular guide rail 211 is connected to the steel wire rope or synthetic fiber cable of the lifting device 210 via a high-strength shackle. The inner side of the annular guide rail 211 is machined with continuous T-shaped grooves to provide a precise guide track for the slide block 212.

[0057] The slide base 212 slides within the annular guide rail 211 and can work with the annular guide rail 211 to assist the cleaning robot in making standard circular motions and cleaning the aquaculture net 110. The sliding base is connected to the annular guide rail 211 through two or more sets of nylon or rubber-coated rollers to ensure smooth sliding and low resistance. The connecting bracket extends out of the annular guide rail 211 and is used to install subsequent guide components and dock with the cleaning robot.

[0058] The submerged component also includes: a flow guide cavity 220, which is located below the annular guide rail 211. The overall design is hollow, and its lower part is open. The material of the flow guide cavity 220 is the same as that of the annular guide rail 211. Its upper end is integrally connected to the annular guide rail 211, and its lower part and outer side are open. The middle part is integrally fixed by several skeletons to form an inverted L-shaped fluid channel.

[0059] The conical pre-scraping ring 223 is a ring-shaped design, integrally fixed to the outer surface of the guide cavity 220. Its cross-sectional shape is an inverted flat-top cone. The upper diameter of the conical pre-scraping ring 223 is larger than the inner diameter of the aquaculture net 110. The cross-sectional shape of the conical pre-scraping ring 223 is an inverted flat-top cone, that is, the upper part is a relatively wide ring aquaculture platform 100, which gradually narrows downward to form a conical surface. The angle between the conical surface and the vertical direction is between 45 degrees and 60 degrees. The outer edge of the conical pre-scraping ring 223 is slightly larger than the inner diameter of the aquaculture net 110. During the lowering of the ring guide rail 211, its edge can first contact the surface of the aquaculture net 110 to scrape away stubborn impurities on the surface of the aquaculture net 110, reducing the cleaning burden on the subsequent cleaning robot.

[0060] When the annular guide rail 211 system is lowered at a constant speed under the drive of the lifting device 210, the inverted flat-topped conical outer surface of the conical pre-scraping ring 223 will gradually come into contact with the aquaculture net 110. Due to the interference design of the outer diameter of the conical pre-scraping ring 223, the aquaculture net 110 at the contact point will be subjected to a radial expansion force from the inside out. The contact between the conical surface of the conical pre-scraping ring 223 and the aquaculture net 110 will generate a component force, causing the aquaculture net 110 in the contact area of ​​the conical pre-scraping ring 223 to be stretched open and maintain its unfolded shape; the above working principle The purpose is as follows: When the annular guide rail 211 system is lowered at a constant speed under the drive of the lifting device 210, the edge of the conical pre-scraping ring 223 transforms the originally soft and easily deformable local area of ​​the aquaculture net 110 into a relatively flat and stable working surface, providing an ideal contact working surface for the brush of the subsequent cleaning robot, which significantly improves the uniformity of the contact between the brush and the surface of the aquaculture net 110. Secondly, the stretching effect makes the mesh of the aquaculture net 110 moderately tightened at the moment of cleaning, and the mesh shape is more regular, which is conducive to the high-pressure water jet penetrating the mesh and removing the attached substances.

[0061] The conical pre-scraping ring 223 is made of ultra-high molecular weight polyethylene sheet or metal plate with tungsten carbide wear-resistant layer welded on the surface. Its edge in contact with the aquaculture net 110 is designed with slightly rounded and replaceable rubber strips to reduce the risk of scratching the aquaculture net 110 material. The inside of the flow guiding cavity 220 and the side near the seawater inflow direction are designed with rounded corners. In order to improve the water flow guiding efficiency, the inside of the flow guiding cavity 220 has a large radius rounded corner treatment on the side near the main seawater inflow direction to smooth the water flow and reduce the generation of eddies.

[0062] The sinking component also includes: guide strips 221, of which two are provided. The cross-sectional shape of the two guide strips 221 is an inverted and an upright flat-topped cone, respectively, and they are fixed to the inner and outer edges of the lower end of the guide cavity 220. The cross-sectional shape of the two guide strips 221 is a figure-eight design, which can guide the seawater below into the guide cavity 220 and guide it along the cone surface of the conical pre-scraped ring 223 towards the aquaculture net 110 when the annular guide rail 211 sinks. The two guide strips 221 are integrally fixed to the guide cavity 220 by welding. When the annular guide rail 211 sinks into the water under the drive of the winch, the relatively still seawater below flows upward under pressure. At this time, the figure-eight guide bar 221 can efficiently collect the upward flowing seawater and guide it into the hollow cavity of the guide cavity 220. Then, it forces the water flow to spread outward along the conical surface of the upper conical pre-scraping ring 223, thereby forming an impact water flow outward along the surface of the aquaculture net 110, which helps the scraped-off attachments to drift to the outside of the aquaculture net 110.

[0063] The sinking component also includes: an inclined guide plate 222, which is located below the outside of the guide cavity 220, and its cross-sectional shape is consistent with the conical pre-scraping ring 223; wherein, the overall inclination of the inclined guide plate 222 is greater than that of the conical pre-scraping ring 223; the tilt angle of the inclined guide plate 222 is 10 to 15 degrees greater than that of the conical pre-scraping ring 223, and its main function is to compress and guide the seawater drawn out from the opening outside the guide cavity 220, prevent the seawater from flowing freely, and effectively prevent it from re-accumulating or re-attaching at the bottom of the net cage.

[0064] The guide includes: a media recovery and distribution cavity 230, which is fixed to one side of the slide 212 and has a hollow design in the middle; the lower part of the media recovery and distribution cavity 230 is fixed to the connecting bracket of the slide 212 by bolts, which is a support and installation component before the cleaning robot operates.

[0065] The guide also includes: magnetic blocks 232, four of which are evenly distributed on the side of the media recovery and distribution cavity 230 near the aquaculture net 110. These magnetic blocks can be attracted to the cleaning robot during installation and ensure that it operates in the correct posture. Before the cleaning robot is submerged, the magnetic blocks 232 are pre-installed on the non-working surface of the cleaning robot. Then, the robot is lifted by a crane to the side of the media recovery and distribution cavity 230 near the aquaculture net 110 and then lowered to the side of the media recovery and distribution cavity 230. At this time, the two sets of magnetic blocks 232 are connected, which can ensure that the cleaning robot can operate in a specific posture underwater and prevent water flow disturbance.

[0066] The magnet 232 is made of neodymium iron boron permanent magnet material, preferably N45 or higher grade. Its surface needs to undergo strict coating treatment to adapt to the marine environment. Usually, epoxy resin coating, nickel-copper-nickel three-layer electroplating or physical vapor deposition aluminum coating are used to ensure excellent corrosion resistance under long-term seawater immersion.

[0067] The total attraction force of the magnetic attraction system is rigorously calculated to overcome the hydrodynamic pressure on the robot caused by the maximum expected lateral current in the operating area, as well as the inertial force of the robot during startup and braking. The four sized magnetic blocks 232 can provide a holding force of no less than 1500 Newtons, which is sufficient to ensure the robot's attitude stability in complex water flow environments. The magnetic docking design also has a self-centering characteristic: when the robot approaches to a certain distance, the magnetic force will guide it to automatically slide into the correct docking position, achieving fast and accurate blind docking, which greatly simplifies the difficulty of underwater installation operations.

[0068] The media recovery port 231 is located on the side of the media recovery and distribution chamber 230 near the aquaculture net 110. It can guide the power media from the back of the cleaning robot into the media recovery and distribution chamber 230 and make secondary use along its internal curvature. The media recovery port 231 is circular and corresponds to the power exhaust port on the back of the cleaning robot. It is used to collect high-pressure wastewater or exhaust gas discharged from the back or side of the cleaning robot. After these recovered media enter the media recovery and distribution chamber 230, they will flow along its internal pre-set curved channel and be discharged from the pre-set outlet.

[0069] There are two drain outlets 234, symmetrically located on both sides of the media recovery and distribution chamber 230. The two drain outlets 234 correspond to the cleaned and uncleaned areas of the aquaculture net 110, respectively. The two drain outlets 234 are symmetrically designed. When the cleaning robot moves in a circle along the annular guide rail 211 on the slide 212, one drain outlet 234 points to the area of ​​the aquaculture net 110 that the cleaning robot has just cleaned, for secondary rinsing to wash away any remaining debris; the other points to the area of ​​the aquaculture net 110 that the robot is about to clean, serving to pre-wet and loosen any attached materials.

[0070] The guide also includes a diverter block 235, which is vertically arranged in the medium recovery and distribution chamber 230 and located at the drain outlet 234. Its top view cross-section is a right triangle, which can divert the flowing medium flowing through the drain outlet 234 and spray it out in a straight line and at an angle.

[0071] To achieve precise control of the water flow, a diversion block 235 is vertically installed inside each drain outlet 234. The top view cross-section of the diversion block 235 is a right triangle, with its right-angled side parallel to the water flow direction and its hypotenuse forcing a portion of the water flow to change direction. Through this design, the medium flowing through the drain outlet 234 is divided into two streams: one stream maintains its original direction and sprays out in a straight line with a strong impact force; the other stream sprays out at an angle, covering a wider range.

[0072] The first stream is a vertical impact jet: This part of the medium is ejected perpendicularly along the right-angle side of the diversion block 235, basically maintaining the original flow direction. The angle between the jet axis and the normal direction of the surface of the aquaculture net 110 is very small. This jet has high momentum and straight impact capability. Its core function is frontal impact and breaking. It acts directly on the top or surface of the attached material at a near-vertical angle, which helps to promote the removal of the attached material from the aquaculture net 110. For soft algae, its strong direct impact force can blow them away from the fibers of the aquaculture net 110.

[0073] The second stream is the inclined scraping jet: This part of the medium is guided by the inclined side of the diverter block 235 and is ejected at an inclined angle of 30-45 degrees. The jet direction is at an acute angle to the surface of the aquaculture net 110. The core function of this jet is scraping and peeling. It follows the action area of ​​the vertical impact jet and weds into the interface between the bottom of the attachment that has been loosened or cracked by the vertical jet and the aquaculture net 110 at a lower incident angle. This inclined fluid can generate a shearing force parallel to the surface of the aquaculture net 110, which can promote the root of the attachment to be scraped or peeled from the fibers of the aquaculture net 110, reducing the cleaning burden for the subsequent cleaning robot.

[0074] The guide also includes: a front spray branch pipe 233, which is connected to the lower part of the media recovery and distribution chamber 230. The whole is bent and corresponds to the surface of the aquaculture net 110 and the part to be cleaned by the cleaning robot. The front spray branch pipe 233 is bent and its outlet is precisely aligned with the surface of the aquaculture net 110 and is located in front of the main brush plate of the cleaning robot. The high-pressure water jet from the front spray branch pipe 233 can pre-impact the stubborn attachment points, significantly reducing the workload of the main brush plate.

[0075] Working principle: During operation, the operator first hoisted the cleaning robot into the water using the deck crane. When the docking surface on the back of the robot approaches the medium recovery and distribution chamber 230, the permanent magnet docking array composed of four magnetic blocks 232 generates a strong magnetic force that will automatically attract the robot to the predetermined position and ensure that its working end is facing the aquaculture net 110 in the correct posture.

[0076] Subsequently, four lifting devices 210 were started simultaneously, and four waterproof winches released cables simultaneously under the command of the centralized control system, driving the entire ring guide rail 211 assembly, which consists of ring guide rail 211, flow guide cavity 220, conical pre-scraping ring 223, etc., to sink vertically at a uniform speed.

[0077] During the sinking phase, the system simultaneously performs two key pre-treatments. The lower edge of the conical pre-scraping ring 223, with a size slightly larger than the inner diameter of the aquaculture net 110, first contacts the aquaculture net 110. This contact scrapes away loose surface attachments while generating a moderate radial stretching force on the net that is concave due to the water flow, allowing the aquaculture net 110 to partially return to a flat and taut state, creating a stable working surface for subsequent fine cleaning. At the same time, the guide strip 221 located at the lower end of the guide cavity 220 efficiently collects the seawater that surges up due to the sinking of the component and guides it to the conical surface of the conical pre-scraping ring 223, thereby transforming it into an impact water flow that closely adheres to the aquaculture net 110 and moves outward. This water flow assists in peeling off the attachments on the one hand, and flushes the scraped fragments outward on the other hand, reducing the deposition of attachments inside the aquaculture net 110.

[0078] When the component sinks to the preset first working depth, the four lifting devices 210 lock, and the cleaning robot starts. Its drive device cooperates with the slide 212 to make uniform circular motion along the ring guide rail 211 and begin to clean the aquaculture net 110 at the current depth.

[0079] During the main cleaning process, the high-pressure wastewater or air medium discharged by the robot after its operation is introduced into the medium recovery and distribution chamber 230 through the medium recovery port 231. The diversion block 235 in this chamber accurately divides the incoming medium into two complementary jets. One is a vertical impact jet that directly acts on the surface of the attached material to break it up; the other is an inclined scraping jet that cuts into the bottom of the attached material to peel it off. These two jets act on the front and rear areas of the robot through different directional discharge ports. In addition, the front spray branch pipe 233 accurately guides a branch jet to the stubborn attachment point in front of the robot's main brush plate for pre-impact.

[0080] After completing the cleaning of the current circumference, the synchronous lifting mechanism first slightly raises the entire ring guide rail 211 assembly by about 0.5 meters to detach it from the aquaculture net 110. Then, it continues to control the uniform speed to sink to the next working depth. The cleaning robot then enters the next layer and repeats the above collaborative operation cycle. This process is carried out layer by layer until the aquaculture net 110 is cleaned to its designed full depth. Finally, the synchronous lifting mechanism smoothly lifts the entire ring guide rail 211 assembly along with the cleaning robot to the water surface, facilitating equipment inspection, maintenance, and removal of collected marine organisms from the collection device.

[0081] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0082] 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. Ecological aquaculture cages based on marine ranching, including: The cage body; The cage body includes: The aquaculture platform (100) is a ring-shaped design, consisting of pontoons and a steel frame, and floats on the sea surface. Aquaculture net (110) is installed below the aquaculture platform (100) and has a bowl-shaped design. Its characteristic is that it further includes: The auxiliary component (200) is located between the aquaculture platform (100) and the aquaculture net (110), including a sinking component located inside the aquaculture net (110) that can guide the cleaning robot to move along a specified trajectory and assist in cleaning, and a guide component located on the sinking component to improve the cleaning effect.

2. The ecological aquaculture cage based on marine ranching according to claim 1, characterized in that: The sinking component includes: The lifting device (210) is provided in four parts and is evenly distributed in a ring array inside the aquaculture platform (100); The circular guide rail (211) is a circular design, and its outer diameter is consistent with that of the aquaculture net (110). Its upper end is fixed to the lifting device (210) by a hook. The slide (212) slides within the annular guide rail (211) and can work with the annular guide rail (211) to assist the cleaning robot in making standard circular motions and cleaning the aquaculture net (110).

3. The ecological aquaculture cage based on marine ranching according to claim 2, characterized in that: The sinking component also includes: The flow guide cavity (220) is located below the annular guide rail (211) and is a hollow design with an open lower part. The conical pre-scraping ring (223) is a ring design and is integrally fixed to the outer surface of the flow guide cavity (220). Its cross-sectional shape is an inverted flat-top conical design. The inside of the flow guide cavity (220) and the side closest to the seawater inlet direction is designed with rounded corners.

4. The ecological aquaculture cage based on marine ranching according to claim 3, characterized in that: The upper diameter of the conical pre-scraping ring (223) is larger than the inner diameter of the aquaculture net (110).

5. The ecological aquaculture cage based on marine ranching according to claim 3, characterized in that: The sinking component also includes: There are two guide strips (221). The cross-sectional shape of the two guide strips (221) is an inverted and an upright flat-top cone, respectively. They are fixed to the inner and outer edges of the lower end of the flow guide cavity (220). The cross-sectional shape of the two guide strips (221) is a figure-eight design. When the annular guide rail (211) sinks, it can guide the seawater below into the flow guide cavity (220) and guide it along the cone surface of the conical pre-scraping ring (223) towards the aquaculture net (110).

6. The ecological aquaculture cage based on marine ranching according to claim 3, characterized in that: The sinking component also includes: An inclined guide vane (222) is located below the outside of the guide cavity (220), and its cross-sectional shape is consistent with that of the conical pre-scraping ring (223); Among them, the overall slope of the inclined guide vane (222) is greater than that of the conical pre-scraping ring (223).

7. The ecological aquaculture cage based on marine ranching according to claim 2, characterized in that: The guide includes: The medium recovery and distribution cavity (230) is fixed to one side of the slide (212), and its middle part is hollow. The media recovery port (231) is located on the side of the media recovery and distribution chamber (230) near the aquaculture net (110). It can guide the power media on the back of the cleaning robot into the media recovery and distribution chamber (230) and make secondary use along its internal curvature branches. There are two drain outlets (234) symmetrically located on both sides of the medium recovery and distribution chamber (230). The two drain outlets (234) correspond to the cleaned and uncleaned areas of the aquaculture net (110), respectively.

8. The ecological aquaculture cage based on marine ranching according to claim 7, characterized in that: The guide also includes: The diversion block (235) is vertically installed in the medium recovery and distribution chamber (230) and located at the drain outlet (234). Its top view cross-section is a right triangle, which can divert the flowing medium flowing through the drain outlet (234) and spray it out in a straight line and at an angle.

9. The ecological aquaculture cage based on marine ranching according to claim 7, characterized in that: The guide also includes: The front spray branch pipe (233) is connected to the lower part of the medium recovery and distribution chamber (230). The whole is a bent design, which corresponds to the surface of the aquaculture net (110) and the part to be cleaned by the cleaning robot.

10. The ecological aquaculture cage based on marine ranching according to claim 7, characterized in that: The guide also includes: Four magnetic blocks (232) are provided and evenly distributed on one side of the media recycling and distribution chamber (230) near the aquaculture net (110), which can be magnetically attracted and made to work in the correct posture when the cleaning robot is installed.

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