Marine ecological aquaculture net cage system

Abstract

The present application provides a kind of marine ecological aquaculture net cage system, including net cage framework and be connected on the suspension mechanism of net cage framework;Net cage framework includes a plurality of single box modules and a plurality of edge box modules that can be detachably connected as a whole;Each single box module is connected with netting to form an independent breeding space;Suspension mechanism includes a plurality of balance air bags and a plurality of lifting air bags;Each balance air bag is respectively connected to the top of each edge box module, and each lifting air bag is respectively connected to the inside of each edge box module;Wherein, each lifting air bag is used to inflate synchronously to drive the net cage framework to float up, also used to deflate synchronously to make the net cage framework sink, also used to keep the target inflation amount to make the net cage framework hover at the target depth.The marine ecological aquaculture net cage system provided by the present application can improve the flexibility of the net cage, and is beneficial to popularization and application in small marine ranches and fisherman groups.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of marine ecological aquaculture, and particularly relates to a marine ecological aquaculture net cage system. BACKGROUND

[0002] The net cage is an important facility for marine ecological aquaculture. Unlike conventional water aquaculture, marine ecological aquaculture is usually in deep water and is subjected to strong wind and wave impact. Therefore, a steel structure net cage is required. At the same time, the net cage needs to be submerged underwater, and the buoyancy is provided by the float, and the net cage needs to be connected to the seabed by a cable for traction and fixation. The specific structure of the net cage is to use various types of steel to be spliced and welded, and after welding, a net cage frame with multiple independent breeding units is formed, and then a float is installed on the net cage frame to generate buoyancy. The disadvantage of this steel structure net cage is that it is difficult to adjust the depth of the net cage. When it is necessary to change the water area or clean part of the breeding units, the cable needs to be removed and the net cage needs to be floated to the water surface for transfer, which requires a lot of labor and has poor flexibility, and therefore cannot meet the flexible breeding needs of small-scale marine ranches and fishing groups. SUMMARY

[0003] The embodiment of the present application provides a marine ecological aquaculture net cage system, which aims to improve the flexibility of the net cage and meet the use needs of small-scale marine ranches and fishing groups.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows: in a first aspect, a marine ecological aquaculture net cage system is provided, which comprises a net cage framework and a suspension mechanism connected to the net cage framework; the net cage framework comprises a plurality of single box modules and a plurality of edge box modules which are detachably connected together; each single box module is distributed in a rectangular array, and each single box module is connected to a net cover to form an independent breeding space; each edge box module surrounds the rectangular array; the suspension mechanism comprises a plurality of balance air bags and a plurality of lifting air bags; each balance air bag is correspondingly connected to the top of each edge box module, and each lifting air bag is correspondingly connected to the inside of each edge box module.

[0005] Among them, each lifting air bag is used to inflate synchronously to drive the net cage framework to float up, is also used to deflate synchronously to make the net cage framework sink, and is also used to maintain a target inflation amount to make the net cage framework hover at a target depth.

[0006] In a possible implementation manner, the suspension mechanism further comprises a plurality of high-pressure gas storage bags, each high-pressure gas storage bag is correspondingly connected to each edge box module, and the lifting air bag is correspondingly connected to the bottom of the high-pressure gas storage bag and communicates with the high-pressure gas storage bag through a switch valve.

[0007] In some embodiments, the suspending mechanism further comprises four waterproof boxes connected to the four corners of the net cage framework, respectively, each of the waterproof boxes is connected to each other through pipelines, and one of the waterproof boxes is connected with a snorkel, one end of the snorkel is connected with a float for floating on the sea surface; each of the waterproof boxes is provided with a high-pressure air pump, and each of the high-pressure air pumps is connected to each of the high-pressure gas bags, respectively.

[0008] For example, each of the single-box modules is provided with a plurality of connecting ears on the top, and each of the single-box modules is provided with an air charging pipeline connected to the high-pressure gas bag; the top of each of the waterproof boxes is provided with a storage cavity, and a spare air bag is placed in the storage cavity; when one of the single-box modules is disassembled underwater, the spare air bag is used to connect each of the connecting ears of the single-box module and connect with the air charging pipeline to generate buoyancy by inflation.

[0009] For example, each of the waterproof boxes is provided with a storage battery for supplying power to the high-pressure air pump, and the snorkel is tied with a cable, one end of the cable is used to connect a charging pile of the offshore operation platform, and the other end extends into each of the waterproof boxes and is electrically connected to each of the storage batteries, respectively.

[0010] In one possible implementation, one of the waterproof boxes is provided with a controller, the controller is electrically connected to each of the air pumps, each of the high-pressure gas bags is provided with a gas pressure sensor, and each of the gas pressure sensors and each of the on-off valves are electrically connected to the controller.

[0011] In some embodiments, the lifting air bag comprises a plurality of flat bag bodies stacked in sequence, the flat bag body on the top is fixedly attached to the bottom surface of the high-pressure gas bag and connected to the on-off valve, the adjacent flat bag bodies are fixedly attached and connected through the one-way valve; wherein, when the air pressure in the upper flat bag body reaches a threshold value, the one-way valve is opened to inflate the lower flat bag body; each of the flat bag bodies is provided with an exhaust valve, and each of the exhaust valves is sequentially opened from bottom to top when the lifting air bag is exhausted.

[0012] In some embodiments, each of the corner positions of the single-box module and the side-box module is provided with a necked card slot, the necked card slots of the adjacent single-box modules, the necked card slots of the adjacent side-box modules, and the necked card slots of the adjacent side-box modules and single-box modules are jointly formed into mortise and tenon slots / holes, and a mortise and tenon pin is inserted into the mortise and tenon slots / holes; wherein, the inner wall of each of the necked card slots is provided with a limiting slot, and an open ring is clamped in the limiting slot to press against the end face of the mortise and tenon pin.

[0013] For example, the necked card slot comprises an inner arc part and an outer expansion part, the central angle of the inner arc part is greater than ninety degrees to form a neck, and the outer expansion part is connected to the neck and transitions with a round corner.

[0014] For example, both the single-box module and the side-box module are connected by twelve side beams and eight corner joints to form a cuboid frame; the corner joint includes three connectors that are perpendicular to each other, and the corner joint is provided with a constriction groove. Each connector is sealed and inserted into the end of the corresponding side beam and fixed by a locking device.

[0015] The beneficial effects of the marine ecological aquaculture cage system provided by this invention are as follows: Compared with the prior art, the marine ecological aquaculture cage system of this invention uses multiple single-box modules and multiple side-box modules that can be disassembled and assembled into one unit, which facilitates flexible disassembly and reassembly, thereby meeting the needs of diversified reuse in different areas. Moreover, any one or more single-box modules can be disassembled underwater and floated to the surface for net cleaning and maintenance, which is highly flexible and saves labor. On this basis, the installation of balancing airbags on the top of the side-box modules helps to lower the center of gravity of the overall structure, thereby reducing the swaying caused by wind, waves and underwater currents, thus improving stability. At the same time, by adjusting the inflation volume of the lifting airbags installed inside the side-box modules, the lifting airbags can be expanded, contracted or maintained at a stable volume, thereby meeting the needs of autonomous floating, sinking and hovering of the cage frame. It can not only achieve flexible adjustment of the hovering depth, but also achieve flexible transfer of underwater areas, improving the stability of the aquatic organism growth environment in each aquaculture space, and is suitable for promotion and application in small marine ranches and fishing groups. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the marine ecological aquaculture cage system provided in an embodiment of the present invention;

[0017] Figure 2 A three-dimensional structural schematic diagram of the side box module used in the embodiments of the present invention is provided;

[0018] Figure 3 A three-dimensional structural diagram of the waterproof box (cut open) used in the embodiments of the present invention is provided;

[0019] Figure 4 A schematic diagram of the cross-sectional structure of the side box module used in the embodiment of the present invention during the inflation of the lifting airbag is provided.

[0020] Figure 5 A schematic diagram of the cross-sectional structure of the side box module used in the embodiment of the present invention during the deflation and compression of the lifting airbag is provided.

[0021] Figure 6 A control block diagram of the suspension mechanism used in the embodiments of the present invention is provided;

[0022] Figure 7 for Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0023] Figure 8 for Figure 7 A schematic diagram of the split structure at the indicated location;

[0024] Figure 9 A three-dimensional structural diagram of the single-box module used in the embodiments of the present invention is provided;

[0025] Figure 10 for Figure 9 A magnified view of the structure at point B in the middle;

[0026] Figure 11 for Figure 10 A schematic diagram of the split structure at the indicated location;

[0027] Figure 12 for Figure 11 A magnified schematic diagram of the local structure at point C;

[0028] Figure 13 A three-dimensional structural diagram of the locking component used in the embodiments of the present invention is provided.

[0029] In the diagram: 10. Cage frame; 11. Single cage module; 111. Connecting ear; 112. Inflation pipe; 113. Narrowing groove; 1131. Inner arc part; 1132. Outer expansion part; 1133. Limiting groove; 12. Side cage module; 121. Side beam; 1211. Groove; 1212. First perforation; 122. Corner joint; 1221. Connector; 1222. Second perforation; 20. Suspension mechanism; 21. Balance airbag; 22. Lifting airbag; 221. Flat airbag body; 2 22. One-way valve; 223. Exhaust valve; 23. High-pressure air tank; 231. Switch valve; 232. Pressure sensor; 24. Waterproof box; 241. Vent pipe; 242. High-pressure air pump; 243. Battery; 244. Controller; 245. Partition; 246. Storage cavity; 25. Float; 30. Tenon and mortise hole; 40. Tenon and mortise pin; 41. Pull pin hole; 50. Open ring; 60. Locking component; 61. Screw; 62. Screw sleeve; 621. Limiting plate; 63. Sealing gasket. Detailed Implementation

[0030] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0031] It should be noted that when an element is referred to as being "set on" or "connected to" another element, it can be directly on or indirectly on the other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0032] Please refer to the following: Figures 1 to 13 The marine ecological aquaculture cage system provided by the present invention will now be described. The marine ecological aquaculture cage system includes a cage frame 10 and a suspension mechanism 20 connected to the cage frame 10. The cage frame 10 includes multiple single-cage modules 11 and multiple side-cage modules 12 that are detachably connected as a single unit. Each single-cage module 11 is arranged in a rectangular array, and each single-cage module 11 is connected to a net to form an independent aquaculture space. Each side-cage module 12 is arranged around the rectangular array. The suspension mechanism 20 includes multiple balancing airbags 21 and multiple lifting airbags 22. Each balancing airbag 21 is connected to the top of each side-cage module 12, and each lifting airbag 22 is connected to the interior of each side-cage module 12. Each lifting airbag 22 is used for synchronous inflation to lift the cage frame 10, synchronous deflation to sink the cage frame 10, and maintaining a target inflation level to suspend the cage frame 10 at a target depth.

[0033] It should be noted that in this embodiment, the detachable connection methods between adjacent single-box modules 11, adjacent side-box modules 12, and adjacent single-box modules 11 and side-box modules 12 are the same. Specifically, it can be a screw-fixed method or a tenon-and-mortise insertion fixed structure. Considering the convenience of disassembly and assembly and to avoid the situation where the screw parts are corroded and cannot be disassembled, the tenon-and-mortise insertion detachable connection method is preferred.

[0034] In this embodiment, the single-box module 11 can preferably adopt a cubic structure. The length of the side-box module 12 is equal to the side length of the single-box module 11, and the width is smaller than the side length of the single-box module 11. This allows each side-box module 12 to be connected to each single-box module 11 on the side area of ​​the rectangular array. Furthermore, each balancing airbag 21 and lifting airbag 22 is also set corresponding to the side-box module 12. This not only avoids the balancing airbag 21 and lifting airbag 22 becoming too large and increasing installation difficulty, but also allows for individual replacement of any balancing airbag 21 or lifting airbag 22 if it is damaged, reducing maintenance costs while avoiding disruption to normal operations. During aquaculture operations (if one of the balance airbags 21 or the lifting airbag 22 is damaged, the remaining lifting airbags 22 can be added to ensure the suspension state, thereby maintaining a stable state underwater for repair and replacement. If two or more balance airbags 21 or the lifting airbag 22 leak air, they can be replaced in turn). In addition, when the aquaculture cycle is completed and the cage system needs to be salvaged and taken out to sea, it can be disassembled underwater and the balance airbags 21 and the lifting airbag 22 can be used to float each side cage module 12 (which can be connected to the single cage module 11) to the surface and float to the shore with the help of external traction, thereby saving manpower and facilitating flexible operations for fishermen.

[0035] Compared with the prior art, the marine ecological aquaculture cage system provided in this embodiment adopts multiple single-box modules 11 and multiple side-box modules 12 that can be disassembled and assembled into one unit, which facilitates flexible disassembly and reassembly, thereby meeting the needs of diversified reuse in different areas. Moreover, any one or more single-box modules 11 can be removed underwater and floated to the surface for net cleaning and maintenance, which is highly flexible and saves labor. On this basis, the balancing airbag 21 is installed on the top of the side-box module 12, which helps to lower the center of gravity of the overall structure to reduce the swaying caused by wind, waves and underwater currents, thereby improving stability. At the same time, by adjusting the inflation volume of the lifting airbag 22 installed inside the side-box module 12, the lifting airbag 22 can be expanded, contracted or maintained at a stable volume, thereby meeting the needs of autonomous floating, sinking and hovering of the cage frame 10. It can not only achieve flexible adjustment of hovering depth, but also achieve flexible transfer of underwater areas, improve the stability of the aquatic organism growth environment in each aquaculture space, and is suitable for promotion and application in small marine ranches and fishing groups.

[0036] In some embodiments, see Figures 2 to 6 The suspension mechanism 20 also includes multiple high-pressure air storage tanks 23, each of which is connected to a corresponding side box module 12. The lifting airbag 22 is connected to the bottom of the high-pressure air storage tank 23 and communicates with the high-pressure air storage tank 23 through a switch valve 231.

[0037] The high-pressure air storage tank 23 can be made of high-strength metal material to withstand high gas pressure. Before entering the water, the high-pressure air storage tank 23 can be pre-filled with high-pressure air. When the lifting airbag 22 needs to be inflated, the corresponding switch valve 231 can be opened. When the lifting airbag 22 needs to be vented, it can be directly discharged underwater. Thus, the inflation volume of the lifting airbag 22 can be adjusted without the aid of external equipment, thereby realizing the adjustment of the lifting and hovering depth of the overall structure. The operation is convenient and flexible. In addition, by placing the high-pressure air storage tank 23 in the side box module 12 and above the lifting airbag 22, it can provide support for the lifting airbag 22 and prevent the lifting airbag 22 from bending and deforming under seawater pressure, thus affecting its stability.

[0038] For a further embodiment of the aforementioned suspension mechanism 20, please refer to... Figures 1 to 6 The suspension mechanism 20 also includes four waterproof boxes 24 connected to the four corners of the cage frame 10. Each waterproof box 24 is interconnected by a pipe, and one of the waterproof boxes 24 is connected to a vent pipe 241. One end of the vent pipe 241 is connected to a float 25 for floating on the sea surface. Each waterproof box 24 is equipped with a high-pressure air pump 242, and each high-pressure air pump 242 is connected to a high-pressure air storage tank 23.

[0039] It should be understood that when the length of the side box module 12 is equal to the side length of the single box module 11, there will be missing corner spaces at each corner after the net cage frame 10 is assembled. Here, a sealed waterproof box 24 is installed in each missing corner space. This can provide a waterless environment for installing the high-pressure air pump 242 through the inner cavity of each waterproof box 24 while ensuring the overall force balance of the net cage frame 10. On this basis, the air pipe 241 connected to the float 25 is used to connect the waterproof box 24 with the outside air above the sea surface. The high-pressure air pump 242 can replenish the air into the high-pressure air storage bag 23 at any time, thereby avoiding the situation where the high-pressure air storage bag 23 cannot inflate the lifting air bag 22 due to insufficient air pressure.

[0040] In this embodiment, the waterproof box 24 is typically connected and fixed to the single box module 11 and the two side box modules 12 at the corner positions using a mortise and tenon joint structure. This also allows the waterproof box 24 to improve the overall connection structure strength of the cage frame 10 and enhance its ability to resist wind, waves and underwater currents.

[0041] In some embodiments, see Figure 1 , Figure 3 and Figure 7Each single-box module 11 has several connecting ears 111 evenly distributed on its top, and each single-box module 11 is provided with an inflation pipe 112 connected to the high-pressure air storage tank 23; each waterproof box 24 is provided with a storage cavity 246 on its top, and a spare airbag is placed in the storage cavity 246; when one of the single-box modules 11 is disassembled underwater, the spare airbag is used to connect the connecting ears 111 of the single-box module 11 and connect to the inflation pipe 112 to inflate and generate buoyancy.

[0042] Both the single-box module 11 and the side-box module 12 can be assembled and fixed by welding rectangular tubes or connected by bolts. By laying the inflation pipe 112 inside the rectangular tube, each single-box module 11 can be reserved with an inflation pipe 112 that can be connected to the high-pressure air storage bag 23. The interior of the waterproof box 24 is divided into upper and lower chambers by a partition 245. The lower chamber accommodates the high-pressure air pump 242, and the upper chamber serves as a storage chamber 246 to hold spare airbags. When the spare airbag is retrieved underwater, only the storage chamber 246 needs to be opened, and the lower chamber is not affected, thus avoiding the high-pressure air pump 242 from being submerged and affecting normal use. For aquaculture spaces that need to be cleaned or repaired, the spare airbags are connected to the connecting ears 111 of the corresponding single-box module 11. After connecting the spare airbags to the inflation pipe 112, they can be inflated to generate buoyancy, thereby using the spare airbags to lift the removed single-box module 11 to the surface of the water. This reduces the difficulty of operation and labor intensity, and improves the flexibility of cleaning and repairing aquaculture spaces.

[0043] It should be noted that, see Figure 3 and Figure 6 Each waterproof tank 24 is equipped with a battery 243 for supplying power to the high-pressure air pump 242. A cable is tied to the vent pipe 241. One end of the cable is used to connect to the charging pile of the offshore operation platform, and the other end extends into each waterproof tank 24 and is electrically connected to each battery 243 respectively.

[0044] It should be noted that the aforementioned cables can pass through the rectangular tubes that make up the side box module 12 to reach each waterproof box 24, thereby achieving electrical connection with each battery 243. By setting the battery 243, an electrically driven high-pressure air pump 242 can be used, which can reduce the size of the high-pressure air pump 242. Moreover, using the battery 243 as the power source for the high-pressure air pump 242 can reduce dependence on offshore auxiliary facilities such as offshore operation platforms and meet the needs of autonomous operation. On this basis, the vent pipe 241 can be used to bind the cable leading to the sea surface, and the cable can be used to connect to the charging pile of the offshore operation platform to charge the battery 243, thereby avoiding the situation where the high-pressure air pump 242 cannot operate normally due to insufficient battery power.

[0045] For some possible implementations, please refer to [link / reference]. Figure 3 andFigure 6 One of the waterproof boxes 24 is equipped with a controller 244, which is electrically connected to each air pump. Each high-pressure air storage tank 23 is equipped with a pressure sensor 232, and each pressure sensor 232 and each switch valve 231 are electrically connected to the controller 244.

[0046] The electrical connection between the controller 244 and each air pump can be achieved through cables laid in the rectangular tube of the side box module 12. Here, the air pressure sensor 232 is used to detect the air pressure of the high-pressure air storage tank 23 in real time. When the air pressure is lower than the threshold, the controller 244 controls the high-pressure air pump 242 to start running, thereby ensuring that the high-pressure air storage tank 23 can maintain sufficient compressed air and avoid the situation where the lifting airbag 22 cannot be inflated. On this basis, each switch valve 231 is also a solenoid valve controlled by the controller 244. When the lifting airbag 22 needs to be inflated, the switch valve 231 can be automatically opened by the controller 244, thereby facilitating operation.

[0047] It should be noted that the controller 244 is equipped with a wireless transmission module, which can establish a signal connection with the control system on the offshore work platform. As a result, the operator can remotely control the controller 244 from the offshore work platform, thereby enabling the adjustment of the lifting and lowering height of the cage system without going into the water.

[0048] Specifically, in combination Figure 2 , Figure 4 and Figure 5 The optional structure of the lifting airbag 22 includes multiple flat bladders 221 stacked sequentially. The top flat bladder 221 is attached and fixed to the bottom surface of the high-pressure air reservoir 23 and connected to the switching valve 231. Adjacent flat bladders 221 are bonded and fixed together and connected by a one-way valve 222. When the air pressure in the upper flat bladder 221 reaches a threshold, the one-way valve 222 opens to inflate the lower flat bladder 221. Each flat bladder 221 is provided with an exhaust valve 223, and when the lifting airbag 22 depressurizes, each exhaust valve 223 opens sequentially from bottom to top.

[0049] Multiple flat bladders 221 are stacked to form a lifting airbag 22. By setting a one-way valve 222 and an exhaust valve 223, each flat bladder 221 can be inflated or deflated sequentially in a manner that inflates from top to bottom and exhausts from bottom to top. This ensures that the center of gravity of the overall structure is always at the lowest position, thereby improving the lifting and hovering stability of the cage system.

[0050] Furthermore, such as Figure 6As shown, in order to improve operational convenience, each exhaust valve 223 in this embodiment is a solenoid valve controlled by the controller 244. The controller 244 can control the opening and closing of each exhaust valve 223, so that the operator can control the opening and closing of the exhaust valve 223 by sending a wireless control signal to the controller 244 on the offshore operating platform, thereby realizing remote control of exhaust of each flat bladder 221.

[0051] It should be noted that in this embodiment, each exhaust valve 223 is connected to an exhaust pipe. The exhaust pipe is installed inside the rectangular tube of the side box module 12 and sealed inside the waterproof box 24. This allows the air discharged from the flat bladder 221 to be discharged into the waterproof box 24 through the exhaust pipe, and then discharged into the outside air above the sea surface through the vent pipe 241, avoiding direct exhaust into the water and affecting the normal life of aquatic organisms in the aquaculture space.

[0052] For some possible implementations, please refer to [link / reference]. Figures 7 to 12 Each corner of the single-box module 11 and the side box module 12 is provided with a narrowing groove 113. The narrowing grooves 113 of adjacent single-box modules 11, adjacent side box modules 12, and adjacent side box modules 12 and single-box modules 11 together form a mortise and tenon groove / hole. A mortise and tenon pin 40 is inserted into the mortise and tenon groove / hole. The inner wall of each narrowing groove 113 is provided with a limiting groove 1133. An open ring 50 is engaged in the limiting groove 1133 to press against the end face of the mortise and tenon pin 40.

[0053] At the four corners of the four single-box modules 11 in the middle of the cage frame 10, the four constricted slots 113 form a four-petal flower-shaped tenon hole 30. A tenon pin 40 matching the cross-sectional shape is inserted into the tenon hole 30 to fix the four corners. At the corners of the cage frame 10, a triangle is formed by one single-box module 11 and two side-box modules 12. The three constricted slots 113 form a tenon groove (equivalent to the tenon hole 30 being missing a petal). At this point, a tenon pin 40 matching the cross-sectional shape can still be used to fix the four corners. The tenon and mortise pins 40, which match the cross-section of the mortise hole 30, are inserted into the tenon and mortise groove to complete the fixation. For the side of the cage frame 10, it is actually two adjacent side box modules 12 connected. At this time, the tenon and mortise groove formed by the opposite corners of the two is half of the tenon and mortise hole 30. In order to meet the consistency of the accessories, the tenon and mortise pins 40 mentioned above can still be inserted into the tenon and mortise groove. On the basis of the above, the tenon and mortise pins 40 are axially limited by the opening rings 50 installed in each constriction slot 113, thereby preventing the tenon and mortise pins 40 from slipping outward and causing the connection failure.

[0054] Based on the above, the waterproof box 24 is connected to the notches at each corner of the cage frame 10. Therefore, the corners of the waterproof box 24 are also provided with the constriction slots 113 and the constriction slots 113 on the single box module 11 and the side box module 12 to form mortise and tenon holes 30 and mortise and tenon grooves. Then, after inserting the mortise and tenon pins 40 and locking the opening rings 50, the waterproof box 24 can be reliably connected. The connection method is reliable and easy to disassemble and assemble.

[0055] To facilitate disassembly and assembly, a pin-pulling hole 41 can be provided in the center of the tenon pin 40. When disassembling, a pin-pulling tool can be connected to the pin-pulling hole 41 to remove the tenon pin 40. The operation is simple and convenient.

[0056] It should be noted that, as Figure 12 As shown, the above-mentioned constricted slot 113 includes an inner arc portion 1131 and an outer expansion portion 1132. The central angle of the inner arc portion 1131 is greater than 90 degrees to form a constriction. The outer expansion portion 1132 connects with the constriction and has a rounded transition.

[0057] Since the central angle of the inner arc portion 1131 is greater than 90 degrees, the opening size formed at the junction of the inner arc portion 1131 and the outer expansion portion 1132 is smaller than the diameter of the inner arc portion 1131, thus forming a constricted structure. This can provide radial restraint for the axial insertion position of the inner arc portion 1131, preventing the tenon pin 40 from slipping out and improving the connection reliability. On this basis, by connecting the outer expansion portion 1132 at the constricted position of the inner arc portion 1131, not only can the cross-sectional size of the tenon pin 40 be increased, thereby improving the structural strength of the tenon pin 40, but the outer expansion portion 1132 can also be used to form a gradual transition structure with rounded corners at the parts where the tenon pin 40 mates with each slot, thereby preventing the tenon pin 40 from breaking due to excessive stress concentration, further improving the connection reliability.

[0058] For example, please see Figures 9 to 11 Both the single-box module 11 and the side-box module 12 are connected by twelve side beams 121 and eight corner joints 122 to form a cuboid frame; wherein, the corner joint 122 includes three connectors 1221 that are perpendicular to each other, and the corner joint 122 is provided with a constriction groove 113. Each connector 1221 is respectively sealed and inserted into the end of the corresponding side beam 121 and fixed by passing through the locking member 60.

[0059] The difference between the single-box module 11 and the side-box module 12 is that the short side of the side-box module 12 uses a shorter side beam 121, while the long and high sides are the same as those of the single-box module 11. Therefore, it is possible to configure two lengths of side beam 121, which can improve the interchangeability of the side beam 121 and thus enhance the assembly flexibility and convenience. On this basis, since the side beam 121 is a rectangular or square tube, it is fixed by inserting a connector 1221 into the side beam 121. Specifically, the connector 1221 is inserted into the inner hole of the side beam 121. At the same time, a sealing gasket 63 can be clamped between the connector 1221 and the end face or inner hole of the side beam 121 to ensure the connection is sealed, prevent seawater from entering the side beam 121 and increasing its weight, and prevent internal corrosion of the side beam 121 from affecting its service life.

[0060] Specifically, please refer to Figure 11 In this embodiment, the side beam 121 is a rectangular tube beam suitable for insertion of the connector 1221, and at least one first through hole 1212 is distributed at intervals at both ends of the side beam 121. Each connector 1221 is provided with at least one second through hole 1222 corresponding to the first through hole 1212. Locking members 60 are inserted into the corresponding first through hole 1212 and second through hole 1222. After the connector 1221 is inserted into the side beam 121, it is connected by the locking member 60, thereby preventing the connector 1221 from slipping off the side beam 121 and improving the connection stability.

[0061] Optionally, the structure of the locking member 60 in this embodiment is as follows: Figure 13 As shown, the locking component 60 includes a screw 61 and a screw sleeve 62. One end of the screw sleeve 62 is closed and has a limiting plate 621, while the other end passes through the connector 1221. One end of the screw 61 passes through the connector 1221 and is threadedly connected to the screw sleeve 62. Both the screw 61 and the screw sleeve 62 are fitted with sealing gaskets 63 that abut against the side wall of the side beam 121. The ends of the screw 61 and the screw sleeve 62 that pass through the connector 1221 are screwed together and fixed. Simultaneously, the exposed ends of the screw 61 and the screw sleeve 62 are sealed to the first through hole 1212 by the sealing gaskets 63, preventing seawater from entering the connector 1221. This prevents the connecting ends of the screw 61 and the screw sleeve 62 from contacting seawater and corroding, ensuring that the screw 61 and the screw sleeve 62 can be easily disassembled when the single-box module 11 and the side-box module 12 are disassembled.

[0062] It is important to understand that, see Figure 11In this embodiment, the side wall of the side beam 121 is provided with a groove 1211 corresponding to each of the first through holes 1212. The limiting plate 621 is embedded in the groove 1211 and forms a snap-fit ​​engagement with the groove 1211 along the circumference of the first through hole 1212. In order to avoid the exposed end of the threaded sleeve 62 protruding on the side wall of the side beam 121 and affecting the connection stability between adjacent modules, the side wall of the side beam 121 is provided with a groove 1211 that allows the limiting plate 621 to be embedded. This allows the side walls of the side beams 121 of adjacent modules to fit tightly, thereby improving the connection stability. On this basis, the boundaries of the limiting plate 621 and the groove 1211 are matched and are not circular. This allows the limiting plate 621 to constrain the rotational freedom of the threaded sleeve 62 after it is embedded in the groove 1211. When the locking member 60 is disassembled and the screw 61 is tightened, the rotation of the threaded sleeve 62 can be avoided, thereby facilitating the disassembly operation of the locking member 60.

[0063] It should be noted that, in order to ensure the reliability of the connection between each individual box module 11 and the side box module 12, the aforementioned corner joints 122 and tenon pins 40 are all made of high-strength stainless steel. The material strength of the corner joints 122 and tenon pins 40 ensures the connection strength, and since the high-strength stainless steel material can avoid corrosion due to long-term immersion in seawater, the disassembly and assembly of the tenon pins 40 can be made simple, labor-saving and efficient.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A marine eco-culture net cage system, characterized by, The net cage framework includes a plurality of single-box modules and a plurality of edge-box modules which are detachably connected together; each single-box module is arranged in a rectangular array and is connected with a net cloth to form an independent breeding space; each edge-box module surrounds the rectangular array; the suspension mechanism includes a plurality of balance air bags and a plurality of lifting air bags; each balance air bag is connected to the top of each edge-box module, and each lifting air bag is connected to the inside of each edge-box module; Each lifting air bag is used for synchronous inflation to drive the net cage framework to float, synchronous deflation to make the net cage framework sink, and maintaining a target inflation amount to make the net cage framework hover at a target depth; the suspension mechanism further includes a plurality of high-pressure gas storage bags, each of which is connected to each edge-box module, and the lifting air bag is connected to the bottom of the high-pressure gas storage bag and communicates with the high-pressure gas storage bag through a switch valve; The suspension mechanism further includes four waterproof boxes connected to four corner positions of the net cage framework, each of which is connected to each other through a pipeline, and one of the waterproof boxes is connected with an air pipe, one end of the air pipe is connected with a float for floating on the sea surface; each of the waterproof boxes is provided with a high-pressure air pump, and each of the high-pressure air pumps is connected to each of the high-pressure gas storage bags; The lifting air bag includes a plurality of flat bag bodies stacked in sequence, the top flat bag body is fixed to the bottom surface of the high-pressure gas storage bag and connected with the switch valve, and the adjacent flat bag bodies are bonded and fixed and communicated through a one-way valve; when the air pressure in the upper flat bag body reaches a threshold value, the one-way valve opens to inflate the lower flat bag body; each flat bag body is provided with an exhaust valve, and each exhaust valve is sequentially opened from bottom to top when the lifting air bag is deflated; Each corner position of the single-box module and the edge-box module is provided with a necked card slot, the necked card slots of adjacent single-box modules, the necked card slots of adjacent edge-box modules, and the necked card slots of adjacent edge-box modules and single-box modules form a mortise / hole, and a mortise pin is inserted into the mortise / hole; the inner wall of each necked card slot is provided with a limiting slot, and an open ring is clamped in the limiting slot to press against the end face of the mortise pin; The necked card slot includes an inner arc part and an outer expansion part, the central angle of the inner arc part is greater than ninety degrees to form a neck, and the outer expansion part is connected with the neck and transitions with a rounded corner; The single-box module and the edge-box module are connected into a cuboid frame by twelve edge beams and eight corner joints; the corner joint includes three connection heads perpendicular to each other, and the corner joint is provided with the necked card slot, and each connection head is sealingly inserted into the end of the corresponding edge beam and is fixed by a transverse locking piece.

2. The marine eco-husbandry net cage system according to claim 1, wherein, Each of the single-box modules is provided with a plurality of connecting ears on the top, and each of the single-box modules is provided with a gas charging pipeline connected with the high-pressure gas storage bag; the top of each of the waterproof boxes is provided with a storage cavity, and a spare air bag is placed in the storage cavity; when one of the single-box modules is underwater disassembled, the spare air bag is used to connect each of the connecting ears of the single-box module and is connected with the gas charging pipeline to generate buoyancy by being inflated.

3. The marine eco-husbandry net cage system according to claim 1, wherein, Each of the waterproof boxes is provided with a storage battery for supplying power to the high-pressure gas pump, a cable is tied on the breather pipe, one end of the cable is used to connect a charging pile of the offshore operation platform, and the other end of the cable extends into each of the waterproof boxes and is electrically connected with each of the storage batteries respectively.

4. The marine eco-husbandry net cage system according to claim 3, wherein, One of the waterproof boxes is provided with a controller, the controller is electrically connected with each of the gas pumps, each of the high-pressure gas storage bags is provided with a gas pressure sensor, and each of the gas pressure sensors and each of the on-off valves are electrically connected with the controller.

Images