An assembled deep-sea aquaculture cage with stable sinking and floating function and a method of using the same

Abstract

The present invention relates to the field of deep-sea aquaculture technology, and in particular to an assembled stable deep-sea aquaculture cage and a method of using the cage, which includes a frame system, a buoyancy adjustment system, an auxiliary buoyancy stabilization system, an anchoring system, an inner and outer net system, a net cleaning system, an underwater measurement and control and oxygenation system, and a fish collection system. The present invention achieves the following advantages: the assembled structure is conducive to standardized production and installation, and is convenient for anti-corrosion and maintenance; the method of adjusting and controlling the auxiliary buoyancy is used to enhance the stability during sinking and floating; stratified aquaculture is used to construct a three-dimensional food chain and aquaculture ecological chain; the real-time data of the Internet of Things management system and the water area information collection center can be used to achieve remote management and control through a mobile terminal; the buoyancy is adjusted and the sinking and floating is controlled by adjusting the water volume, which is conducive to regular cleaning of the net and maintenance; the dissolved oxygen is supplemented in layers, which can double the aquaculture density; the fish automatically swim into the cabin along the fish collection water slide, greatly reducing the cost of manual operation.

Description

Technical Field

[0001] The present invention relates to the technical field of deep sea aquaculture, and in particular to an assembled stably sinking and floating deep sea aquaculture cage and a use method thereof. Background Art

[0002] The frame and net of traditional plastic deep-sea aquaculture cages do not form a whole, and lack support carriers for intelligent installation, Internet of Things, and dissolved oxygen supplementation; the aquaculture model is single, the management is extensive, and the operation and maintenance costs are high, which restricts the development of the deep-sea aquaculture industry. Due to the inherent defects of the cage structure, the depth of the aquaculture net is limited to more than 7 meters, and the utilization rate of the aquaculture space and the aquaculture density are extremely low. The cost of cleaning and collecting fish for a single cage net is as high as tens of thousands of yuan per year, which also increases the mortality rate of aquaculture organisms. During the sinking and floating process of the snorkeling cage, there is a situation where the stability of the buoyancy and gravity offset each other and returns to zero, which has become a technical bottleneck in the research and development of sinking and floating cages.

[0003] Secondly, due to the inherent material and structural technical factors, plastic aquaculture cages have too many limitations in terms of wind and wave resistance, stability, three-dimensional ecological aquaculture, and leisure functions in deep sea areas. For example, when cleaning the net, it is generally necessary to lift the buoyancy tube of the cage together with the net out of the water, and then clean it manually; when collecting fish, relying on manual trawling will not only hurt the fish and kill them, but also be time-consuming and laborious. In fact, the existing plastic aquaculture cages have not been updated for many years, and there is basically no technical data to support them. Moreover, the use of products of the same material and structure in the north and south is extremely disrespectful to science. Some businesses have even made false propaganda, exaggerating the service life and wind and wave resistance, causing huge losses to aquaculture companies in the south and serious idleness of aquaculture cages in the north. Summary of the invention

[0004] The object of the present invention is to provide an assembled deep-sea aquaculture cage with stable sinking and floating properties and a method of using the same, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An assembled deep-sea aquaculture cage with stable sinking and floating, comprising a frame system, a buoyancy adjustment system, an auxiliary buoyancy stabilization system, an anchoring system, an inner and outer net system, a net cleaning system, an underwater measurement and control and oxygenation system, and a fish collection system. The frame system is a truss structure, and the columns and beams in the truss structure are all composed of hollow pipes. A plank road working platform is installed on the top of the truss structure; the buoyancy adjustment system is composed of a plurality of groups of buoyancy boxes with hollow inner cavities to form a symmetrical base, which is installed at the bottom of the truss structure and buoyant underwater; the auxiliary buoyancy stabilization system is arranged around the periphery of the truss structure and connected to the truss structure by a movable mechanism; the anchoring system is composed of a gravity anchoring device, a pulley mechanism, and a cable, and the cable passes through the inner bottom of the frame system in a circular manner and goes upwards, Forming an upper and lower closed loop; the inner and outer net system is supported by a truss structure, and is divided into an inner and outer double-layer binding to form a double-layer net that is rigid on the outside and soft on the inside; the net cleaning system includes a water supply pipe and a high-pressure water spraying device. When cleaning, the frame system automatically floats up and is cleaned from top to bottom by high-pressure water spraying; the underwater measurement and control and oxygenation system is an intelligent linkage setting, including multiple water environment physical and chemical monitoring chips, video monitoring and image acquisition equipment, the monitoring chip and dissolved oxygen supplementation pipeline are all installed in the truss structure, and the video monitoring, data processing and linkage control system are all installed on the plank road operation platform; the fish collecting system includes multiple groups of fish collecting slides, fish collecting net bags and water pumps, and the fish collecting net bags are set at the bottom of the net. When collecting fish, the frame system automatically floats up, and the fish automatically swims into the cabin along the fish collecting slide.

[0007] Preferably, the truss structure is provided with a plurality of axial hollow tubes and a plurality of groups of transverse short tubes and triangular inclined tubes perpendicular thereto, wherein the plurality of axial hollow tubes are combined to form columns, and the plurality of groups of transverse short tubes and triangular inclined tubes are combined to form support beams; the columns and support beams in the truss structure are combined in an assembled structure to form a multi-layer structural support, thereby enhancing the force-bearing strength of the frame system and providing installation fulcrums for the dissolved oxygen supplementation pipeline network and underwater monitoring and surveillance equipment; the bottom and four sides of the truss structure are provided with inner angle braces on the vertical surfaces to enhance the stability of the frame system; the truss structure can be set as a multi-layer three-dimensional ecological breeding space; the connection between the columns and the support beams adopts an expanded connection structure to increase the structural modulus and is connected with steel plates and bolts; multi-layer door openings are provided around the truss structure to provide operation entrances and exits for collecting fish; a plank road operation platform is formed by adding a mesh load-bearing plate to the support beam at the top of the truss structure.

[0008] Preferably, the buoyancy box with a hollow inner cavity is arranged at the bottom end of the truss structure as a base, a submersible pump is arranged in the inner cavity of the buoyancy box, and a vertical and lateral outlet check valve is arranged at the bottom of the buoyancy box, a vent pipe is installed at the top of the buoyancy box, and the vent pipe extends vertically to the top of the plank road working platform; when the vent pipe is pressurized and inflated, if the water in the buoyancy box is discharged from the vertical outlet check valve, the frame system will float up, and if the water in the buoyancy box is discharged from the lateral outlet check valve in the same direction, the frame system will float up and sail in a fixed direction; when the exhaust valve of the vent pipe is opened, the frame system will sink when the water inlet at the bottom of the buoyancy box is filled with water under the action of its own weight. When the exhaust valve of the vent pipe is opened, the frame system can float up by pumping water outward with a submersible pump, and the frame system can be placed at any height by adjusting the amount of water in the buoyancy box to meet the needs of aquaculture operations.

[0009] Preferably, the auxiliary buoyancy stabilization system is provided with an internally filled buoyancy ball, a connecting rod, a movable shaft, a limit fixing seat, a spring and a hydraulic electric device, which are combined to form an automatically adjustable movable mechanism; when the buoyancy box dives underwater, before the buoyancy and gravity are at the critical point of stability, the auxiliary buoyancy draft bears the stable buoyancy of the frame system; the auxiliary buoyancy is subjected to the force of the movable shaft and the spring, so that the buoyancy ball is always within the range of the draft surplus required to meet the stability of the frame system; the hydraulic electric device includes a hydraulic lifting mechanism and a guide rail, when the hydraulic or electromagnetic clamp a locks the guide rail, the hydraulic or electromagnetic clamp b is released, the hydraulic lifting mechanism b shrinks and climbs upward, and the hydraulic connecting rod connected to the buoyancy ball is pushed downward synchronously; when the hydraulic or electromagnetic clamp b locks the guide rail, the hydraulic or electromagnetic clamp a is released, and the hydraulic lifting mechanism a climbs upward; the hydraulic lifting mechanism is controlled by the electromagnetic or hydraulic clamp, the hydraulic lifting mechanism, and the hydraulic connecting rod connected to the buoyancy ball to achieve upward climbing or descending, and the buoyancy ball is always in a state that meets the stable buoyancy of the frame system.

[0010] Preferably, the anchoring system is anchored to the stress-bearing layer on the seabed by a gravity anchoring device, and the pulley mechanism is installed at the inner corners of the stress-bearing positions around the frame system; one end of one group of cables is connected to the gravity anchoring device, and the other end is wrapped around the first pulley at the bottom of the frame system at an angle not exceeding 25° and is fixed upward to the top of the frame system; one end of the other group of cables is connected to the gravity anchoring device, and the other end is wrapped around the second pulley at the top of the frame system and is fixed to the bottom of the frame system, forming an upper and lower closed loop.

[0011] Preferably, sufficient surplus spacing is left in the truss structure; a double-layer net is formed by tying the inner and outer sides of the truss structure in a rigid outer and flexible inner manner to prevent the escape of organisms due to external damage and damage to the inner net; the truss structure supports the net to solve the problem of high mortality of farmed organisms caused by the net flipping up due to wave force; guardrails are provided on both sides of the plank work platform, and a plastic net is hung on the inner guardrail, and a plastic net cover is added with the handrails on the guardrail as support on all sides to prevent aquatic organisms from escaping when the waves are too high.

[0012] Preferably, the net cleaning system is composed of a buoyancy adjustment system, including a movable water supply pipe and a high-pressure water gun; during the cleaning operation, the bottom buoyancy is adjusted to make the frame system gradually float up, and the net is cleaned from top to bottom with the high-pressure water gun.

[0013] Preferably, the underwater measurement and control system uses water environment physical and chemical monitoring chips, video monitoring, and image acquisition, where the monitoring content includes water temperature, salinity, ammonia nitrogen, dissolved oxygen content, etc., and through intelligent linkage data processing and information transmission, remote management and control can be achieved on a mobile terminal.

[0014] Preferably, the oxygen enrichment system is composed of a Roots blower, an air supply main pipe, an air valve, an air supply branch pipe, and a nano-gas explosion tube. According to the depth of the frame system and practical needs, the air valve, the air supply branch pipe, and the nano-gas explosion tube can be set to multiple groups of different water depths; when it is monitored that the dissolved oxygen content is insufficient, the intelligent linkage data processing and information transmission system transmits the data instruction to the control host and the mobile terminal to realize remote or automatic control; under normal circumstances, oxygen is supplied by the uppermost oxygen supply network below the middle of the frame system; when the frame system rises and the water body space is reduced to a certain proportion, the upper and bottom oxygen supply valves are closed, and the middle oxygen supply network is used to supply oxygen; when the frame system continues to rise and the water body space is reduced to a smaller size, the upper and middle oxygen supply network valves are closed, and the bottom oxygen supply network is used to supply oxygen.

[0015] Preferably, the fish collecting system consists of a buoyancy adjustment system, a plurality of movable mechanisms arranged at the lower half of the periphery of the frame system, a fish collecting net bag at the bottom of the net, a fish collecting chute, a water pump, and a fish collecting boat; when collecting fish, one end of the fish collecting chute is connected to the plurality of movable mechanisms, and the other end is connected to the cabin, the movable mechanisms are turned on, the frame system is started to gradually float up, and water is flushed into the fish collecting chute with a water pump, and as the water space gradually decreases, the fish naturally swim to the cabin with the water flow; when the fish collecting is completed, the frame system can float completely to the surface of the water for easy maintenance.

[0016] A method for using an assembled stable sinking and floating deep-sea aquaculture cage comprises the following steps:

[0017] A. The truss structure is made into standard assembled components, which is conducive to reducing the weight of the equipment, reducing the required buoyancy adjustment, reducing production costs, improving the structural strength, and reducing the impact of waves on the structure; it is conducive to installing a safety net on the outside, and to setting supports on the bottom, surrounding facades and inside to enhance stability;

[0018] B. Auxiliary buoyancy stabilization system is used to maintain the safety stability coefficient of the frame system when it sinks and floats, solving the dependence of deep-sea aquaculture on artificial labor;

[0019] C. Multi-layered structure space is conducive to stratified breeding according to biological characteristics, and to the construction of a three-dimensional food chain and breeding ecological chain;

[0020] D. Use the real-time data from the Internet of Things management system and the water information collection center to timely grasp climate and environmental changes and external invasions;

[0021] E. Adjust the buoyancy by adjusting the water volume to control the sinking and floating of the frame system, which is conducive to regular cleaning and maintenance of the net;

[0022] F. Through the multi-channel setting of dissolved oxygen, the problem of insufficient pressure of Roots blower and difficulty in stratified oxygen supply is solved;

[0023] G. By increasing the dissolved oxygen content, the aquaculture density can be increased several times, while improving the quality of aquatic products;

[0024] H. By flushing water into the fish collecting chute, the fish will naturally swim to the cabin with the water flow, greatly saving manpower for fish collecting operations.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The assembled structure is conducive to standardized production and installation, and is convenient for anti-corrosion and maintenance;

[0027] 2. Use the method of adjusting and controlling auxiliary buoyancy to enhance stability during sinking and floating;

[0028] 3. Layered breeding to build a three-dimensional food chain and breeding ecological chain;

[0029] 4. With the real-time data of the Internet of Things management system and the water area information collection center, remote management and control can be achieved through mobile terminals;

[0030] 5. Adjust the buoyancy and control the sinking and floating by adjusting the water volume, which is conducive to regular cleaning and maintenance of the net;

[0031] 6. Dissolved oxygen supplementation in layers can double the breeding density;

[0032] 7. The fish automatically swim into the cabin along the fish collecting water slide, which greatly reduces the labor cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0034] Figure 2 It is a schematic diagram of the structure of the buoyancy adjustment system of the present invention;

[0035] Figure 3 It is a schematic diagram of the structure of the auxiliary buoyancy stabilization system of the present invention;

[0036] Figure 4 It is a schematic diagram of the structure of the anchoring system of the present invention;

[0037] Figure 5 It is a schematic diagram of the structure of the underwater measurement, control and oxygenation system of the present invention;

[0038] Figure 6 It is a schematic diagram of the structure of the fish collecting system of the present invention. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1-6 , Example:

[0041] An assembled deep-sea aquaculture cage with stable sinking and floating, including a frame system, a buoyancy adjustment system, an auxiliary buoyancy stabilization system, an anchoring system, an inner and outer net system, a net cleaning system, an underwater measurement and control and oxygenation system, and a fish collection system. The frame system is a truss structure, and the columns and beams in the truss structure are all composed of hollow pipes. A plank road working platform is installed on the top of the truss structure; the buoyancy adjustment system is composed of a plurality of groups of buoyancy boxes with hollow inner cavities to form a symmetrical base, which is installed at the bottom of the truss structure and buoyant underwater; the auxiliary buoyancy stabilization system is arranged around the periphery of the truss structure and connected to the truss structure by a movable mechanism; the anchoring system is composed of a gravity anchoring device, a pulley mechanism and a cable, and the cable passes through the inner bottom of the frame system in a circular manner and goes upward. Forming an upper and lower closed loop; the inner and outer net systems are supported by a truss structure, divided into inner and outer double layers, forming a double-layer net that is rigid on the outside and soft on the inside; the net cleaning system includes a water supply pipe and a high-pressure water spray device. When cleaning, the frame system automatically floats up and is cleaned from top to bottom by high-pressure water spraying; the underwater measurement and control and oxygenation system is an intelligent linkage setting, including multiple water environment physical and chemical monitoring chips, video monitoring and image acquisition equipment. The monitoring chip and dissolved oxygen supplementation pipeline are all installed in the truss structure, and the video monitoring, data processing and linkage control systems are all installed on the plank road operating platform; the fish collecting system includes multiple sets of fish collecting slides, fish collecting net bags and water pumps, and the fish collecting net bags are set at the bottom of the net. When collecting fish, the frame system automatically floats up, and the fish automatically swim into the cabin along the fish collecting slide.

[0042] like Figure 1 The middle truss structure is provided with multiple axial hollow pipes and multiple groups of transverse short pipes and triangular inclined pipes perpendicular thereto, wherein multiple axial hollow pipes are combined to form columns, and multiple groups of transverse short pipes and triangular inclined pipes are combined to form support beams; the columns and support beams in the truss structure are combined in an assembled structure to form a multi-layer structural support, which enhances the force-bearing strength of the frame system and provides installation fulcrums for the dissolved oxygen supplementation pipeline network and underwater monitoring and surveillance equipment; the bottom and four sides of the truss structure are provided with inner angle braces to enhance the stability of the frame system; the truss structure can be set as a multi-layer three-dimensional ecological breeding space; the connection structure is expanded at the connection between the columns and the support beams to increase the structural modulus and is connected with steel plates and bolts; multi-layer door openings are provided around the truss structure to provide operation entrances and exits for collecting fish; a plank road operation platform is formed by adding a mesh load-bearing plate to the support beam at the top of the truss structure.

[0043] like Figure 2The buoyancy box with a hollow inner cavity is arranged at the bottom of the truss structure as a base. A submersible pump is arranged in the inner cavity of the buoyancy box, and a vertical and lateral outlet check valve is arranged at the bottom of the buoyancy box. A vent pipe is installed at the top of the buoyancy box, and the vent pipe extends vertically to the top of the plank road working platform. When the vent pipe is pressurized and inflated, if the water in the buoyancy box is discharged from the vertical outlet check valve, the frame system will float up, and if the water in the buoyancy box is discharged from the lateral outlet check valve in the same direction, the frame system will float up and sail in a fixed direction. When the exhaust valve of the vent pipe is opened, the frame system will sink when the water inlet at the bottom of the buoyancy box enters water under the action of its own weight. When the exhaust valve of the vent pipe is opened, the frame system can float up by pumping water out with a submersible pump. By adjusting the amount of water in the buoyancy box, the frame system can be at any height to meet the needs of aquaculture operations.

[0044] like Figure 3 The auxiliary buoyancy stabilization system is provided with an internally filled buoyancy ball, a connecting rod, a movable shaft, a limit fixing seat, a spring and a hydraulic electric device, which are combined to form an automatically adjustable movable mechanism; when the buoyancy box dives underwater, before the buoyancy and gravity are at the critical point of stability, the auxiliary buoyancy draft bears the stable buoyancy of the frame system; the auxiliary buoyancy is subjected to the force of the movable shaft and the spring, so that the buoyancy ball is always within the range of the draft surplus required to meet the stability of the frame system; the hydraulic electric device includes a hydraulic lifting mechanism and a guide rail, when the hydraulic or electromagnetic clamp a locks the guide rail, the hydraulic or electromagnetic clamp b is released, the hydraulic lifting mechanism b shrinks and climbs upward, and the hydraulic connecting rod connected to the buoyancy ball is pushed downward synchronously; when the hydraulic or electromagnetic clamp b locks the guide rail, the hydraulic or electromagnetic clamp a is released, and the hydraulic lifting mechanism a climbs upward; the hydraulic lifting mechanism is controlled by the electromagnetic or hydraulic clamp, the hydraulic lifting mechanism, and the hydraulic connecting rod connected to the buoyancy ball to achieve upward climbing or descending, and the buoyancy ball is always in a state that meets the stable buoyancy of the frame system.

[0045] like Figure 4 The middle anchoring system is anchored to the seabed stress layer by a gravity anchoring device, and the pulley mechanism is installed at the inner angles of the stress positions around the frame system; one end of one set of cables is connected to the gravity anchoring device, and the other end is passed around the first pulley at the bottom of the frame system at an angle not exceeding 25° and fixed upward to the top of the frame system; one end of the other set of cables is connected to the gravity anchoring device, and the other end is passed around the second pulley at the top of the frame system and fixed to the bottom of the frame system, forming an upper and lower closed loop.

[0046] like Figure 1Sufficient spare spacing is left in the middle truss structure; a double-layer net is formed by tying the inner and outer sides of the truss structure in a rigid outer and flexible inner manner to prevent the escape of organisms caused by external damage and damage to the inner net; the truss structure supports the net to solve the problem of high mortality of farmed organisms caused by the net flipping up due to wave force; guardrails are set on both sides of the plank work platform, and a plastic net is hung on the inner guardrail, and a plastic net cover is added with the handrails on the guardrail as support on all sides to prevent aquatic organisms from escaping when the waves are too high.

[0047] like Figure 1 and Figure 2 The net cleaning system is composed of a buoyancy adjustment system, including a movable water supply pipe and a high-pressure water gun. During the cleaning operation, the bottom buoyancy is adjusted to make the frame system gradually float up, and the net is cleaned from top to bottom with a high-pressure water gun.

[0048] like Figure 5 The underwater measurement and control system uses water environment physical and chemical monitoring chips, video surveillance, and image collection. The monitoring content includes water temperature, salinity, ammonia nitrogen, dissolved oxygen content, etc. Through intelligent linkage data processing and information transmission, remote management and control can be achieved on mobile terminals.

[0049] like Figure 5 The central oxygenation system is composed of a Roots blower, an air supply main pipe, an air valve, an air supply branch pipe, and a nano-gas explosion pipe. The air valve, air supply branch pipe, and nano-gas explosion pipe can be set to multiple groups of different water depths according to the depth of the frame system and practical needs. When the dissolved oxygen content is detected to be insufficient, the intelligent linkage data processing and information transmission system transmits the data instructions to the control host and the mobile terminal to realize remote or automatic control. Under normal circumstances, oxygen is supplied by the uppermost oxygen supply network below the middle of the frame system. When the frame system rises and the water space is reduced to a certain proportion, the upper and bottom oxygen supply valves are closed, and the middle oxygen supply network is used to supply oxygen. When the frame system continues to rise and the water space is reduced to a smaller size, the upper and middle oxygen supply network valves are closed, and the bottom oxygen supply network is used to supply oxygen.

[0050] like Figure 6 The fish collecting system is composed of a buoyancy adjustment system, multiple groups of movable mechanisms arranged at the lower half of the periphery of the frame system, a fish collecting net bag at the bottom of the net, a fish collecting chute, a water pump, and a fish collecting boat. When collecting fish, one end of the fish collecting chute is connected to the multiple groups of movable mechanisms, and the other end is connected to the cabin. The movable mechanisms are turned on, and the frame system is started to gradually float up. Water is flushed into the fish collecting chute with a water pump. As the water space gradually decreases, the fish naturally swim to the cabin with the water flow. When the fish collecting is finished, the frame system can float to the surface completely for easy maintenance.

[0051] A method for using an assembled stable sinking and floating deep-sea aquaculture cage comprises the following steps:

[0052] A. The truss structure is made into standard assembled components, which is conducive to reducing the weight of the equipment, reducing the required buoyancy adjustment, reducing production costs, improving the structural strength, and reducing the impact of waves on the structure; it is conducive to installing a safety net on the outside, and to setting supports on the bottom, surrounding facades and inside to enhance stability;

[0053] B. Auxiliary buoyancy stabilization system is used to maintain the safety stability coefficient of the frame system when it sinks and floats, solving the dependence of deep-sea aquaculture on artificial labor;

[0054] C. Multi-layered structure space is conducive to stratified breeding according to biological characteristics, and to the construction of a three-dimensional food chain and breeding ecological chain;

[0055] D. Use the real-time data from the Internet of Things management system and the water information collection center to timely grasp climate and environmental changes and external invasions;

[0056] E. Adjust the buoyancy by adjusting the water volume to control the sinking and floating of the frame system, which is conducive to regular cleaning and maintenance of the net;

[0057] F. Through the multi-channel setting of dissolved oxygen, the problem of insufficient pressure of Roots blower and difficulty in stratified oxygen supply is solved;

[0058] G. By increasing the dissolved oxygen content, the aquaculture density can be increased several times, while improving the quality of aquatic products;

[0059] H. By flushing water into the fish collecting chute, the fish will naturally swim to the cabin with the water flow, greatly saving manpower for fish collecting operations.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An assembled stable deep-sea aquaculture cage, comprising a frame system, a buoyancy adjustment system, an auxiliary buoyancy stabilization system, an anchoring system, an inner and outer net system, a net cleaning system, an underwater measurement and control and oxygenation system, and a fish collection system, characterized in that: The frame system is a truss structure, and the columns and beams in the truss structure are all composed of hollow pipes. A plank work platform is installed on the top of the truss structure; the buoyancy adjustment system is composed of a plurality of buoyancy boxes with hollow inner cavities to form a symmetrical base, which is installed at the bottom of the truss structure and floats underwater; the auxiliary buoyancy stabilization system is arranged around the periphery of the truss structure and is connected to the truss structure with a movable mechanism; the anchoring system is composed of a gravity anchoring device, a pulley mechanism and a cable, and the cable passes through the bottom of the inner side of the frame system in a circular manner to form an upper and lower closed loop; the inner and outer netting system is supported by the truss structure and is divided into inner and outer Double-layer binding forms a double-layer net that is hard on the outside and soft on the inside; the net cleaning system includes a water supply pipe and a high-pressure water spraying device. When cleaning, the frame system automatically floats up and is cleaned from top to bottom by high-pressure water spraying; the underwater measurement and control and oxygenation system is an intelligent linkage setting, including multiple water environment physical and chemical monitoring chips, video monitoring and image acquisition equipment. The monitoring chip and dissolved oxygen supplementation pipeline are all installed in the truss structure, and the video monitoring, data processing and linkage control system are all installed on the plank road operation platform; the fish collection system includes multiple groups of fish collection slides, fish collection net bags and water pumps, and the fish collection net bags are set at the bottom of the net. When collecting fish, the frame system Automatically floats up, and the fish automatically swim into the cabin along the fish collection slide. This is an assembled deep-sea aquaculture cage that can sink and float stably. Its frame system adopts a modular design concept and is made of corrosion-resistant and high-strength aluminum alloy to form a multi-layer truss structure. Each layer of trusses is tightly connected by special high-strength bolts, which not only ensures the stability of the structure, but also facilitates on-site assembly and later maintenance. The nodes of each layer of trusses have been strengthened to effectively disperse stress and enhance the overall force-bearing performance. The buoyancy adjustment system includes multiple independent buoyancy boxes, which are evenly distributed at preset positions on the bottom and sides of the cage. The buoyancy boxes are equipped with high-precision pressure sensors and intelligent control valves. , connected to the central water pressure regulating device inside the cage through a connecting pipe; the central water pressure regulating device can accurately control the filling and discharging process of the buoyancy box according to the feedback data from the sensor, so as to realize precise adjustment of the buoyancy of the cage to adapt to different sea conditions and aquaculture needs; the auxiliary buoyancy stabilization system consists of adjustable angle stabilizing fins installed on the top and bottom of the cage and retractable hydraulic balance bars distributed on the side of the cage; the stabilizing fins and balance bars are connected to the built-in intelligent control system of the cage, which adjusts the angle of the stabilizing fins and the telescopic length of the balance bar in real time according to environmental parameters such as water flow speed and direction, to ensure that the cage always remains stable during the sinking and floating process.

2. The assembled stable deep-sea aquaculture cage according to claim 1 is characterized by: The truss structure is provided with a plurality of axial hollow pipes and a plurality of groups of transverse short pipes and triangular inclined pipes perpendicular thereto, wherein a plurality of axial hollow pipes are combined to form columns, and a plurality of groups of transverse short pipes and triangular inclined pipes are combined to form support beams; the columns and support beams in the truss structure are combined in an assembled structure to form a multi-layer structural support, thereby enhancing the force-bearing strength of the frame system and providing installation fulcrums for the dissolved oxygen supplementation pipeline network and underwater monitoring and surveillance equipment; the bottom and surrounding facades of the truss structure are provided with inner angle braces to enhance the stability of the frame system; the truss structure can be set as a multi-layer three-dimensional ecological breeding space; the connection between the columns and the support beams is in the form of an expanded connection structure to increase the structural modulus and is connected with steel plates and bolts; multi-layer door openings are provided around the truss structure to provide an operation entrance and exit for collecting fish; a plank road operation platform is formed by adding a mesh load-bearing plate to the support beam at the top of the truss structure.

3. The assembled stable sinking and floating deep-sea aquaculture cage according to claim 1 is characterized by: The buoyancy box with a hollow inner cavity is arranged at the bottom end of the truss structure as a base. A submersible pump is provided in the inner cavity of the buoyancy box, and vertical and lateral water outlet one-way valves are provided at the bottom of the buoyancy box. A vent pipe is installed at the top of the buoyancy box, and the vent pipe extends vertically to the top of the plank road working platform; when the vent pipe is pressurized and inflated, if the water in the buoyancy box is discharged from the vertical water outlet one-way valve, the frame system will float up, and if the water in the buoyancy box is discharged from the lateral water outlet one-way valve in the same direction, the frame system will float up and sail in a fixed direction; when the exhaust valve of the vent pipe is opened, the frame system, under the action of its own weight, allows water to enter the water inlet at the bottom of the buoyancy box, and the frame system will sink. When the exhaust valve of the vent pipe is opened, the frame system can float up by pumping water out using a submersible pump, and the frame system can be placed at any height by adjusting the amount of water in the buoyancy box to meet the needs of breeding operations.

4. The assembled stable sinking and floating deep-sea aquaculture cage according to claim 1 is characterized by: The auxiliary buoyancy stabilization system is provided with an internally filled buoyancy ball, a connecting rod, a movable shaft, a limit fixing seat, a spring and a hydraulic electric device, which are combined to form an automatically adjustable movable mechanism; when the buoyancy box dives underwater, before the buoyancy and gravity are at the critical point of stability, the auxiliary buoyancy draft bears the stable buoyancy of the frame system; the auxiliary buoyancy is acted upon by the movable shaft and the spring, so that the buoyancy ball is always within the range of the draft surplus required to meet the stability of the frame system; the hydraulic electric device includes a hydraulic lifting mechanism and a guide rail, on which there are spaced The hydraulic or electromagnetic driven clamp a, when the hydraulic or electromagnetic clamp a locks the guide rail, the hydraulic or electromagnetic clamp b is released, the hydraulic lifting mechanism b shrinks and climbs upward, and the hydraulic connecting rod connected to the buoyancy ball is pushed downward synchronously; when the hydraulic or electromagnetic clamp b locks the guide rail, the hydraulic or electromagnetic clamp a is released, and the hydraulic lifting mechanism a climbs upward; the hydraulic lifting mechanism is controlled by the electromagnetic or hydraulic clamp, the hydraulic lifting mechanism, and the hydraulic connecting rod connected to the buoyancy ball to achieve upward climbing or descending, and the buoyancy ball is always in a state that satisfies the stable buoyancy of the frame system.

5. The assembled stable sinking and floating deep-sea aquaculture cage according to claim 1 is characterized by: The anchoring system is anchored to the seabed stress layer by a gravity anchoring device, and the pulley mechanism is installed at the inner corners of the stress-bearing positions around the frame system; one end of one set of cables is connected to the gravity anchoring device, and the other end is passed around the first pulley at the bottom of the frame system at an angle not exceeding 25° and fixed upward to the top of the frame system; one end of the other set of cables is connected to the gravity anchoring device, and the other end is passed around the second pulley at the top of the frame system and fixed to the bottom of the frame system, forming an upper and lower closed loop.

6. The assembled stable sinking and floating deep-sea aquaculture cage according to claim 1, characterized in that: Sufficient surplus spacing is left in the truss structure; a double-layer net is formed by tying the inner and outer sides of the truss structure in a rigid outer and flexible inner manner, which can prevent external damage and damage to the inner net from causing the organisms to escape; the truss structure supports the net, which can solve the problem of high mortality of farmed organisms caused by the net flipping up due to wave force; guardrails are arranged on both sides of the plank road working platform, and a plastic net is hung on the inner guardrail, and a plastic net cover is added with the handrails on the guardrail as support around to prevent aquatic organisms from escaping when the waves are too high.

7. The assembled stable sinking and floating deep-sea aquaculture cage according to claim 1, characterized in that: The net cleaning system is composed of a buoyancy adjustment system, including a movable water supply pipe and a high-pressure water gun. During the cleaning operation, the bottom buoyancy is adjusted to make the frame system gradually float up, and the net is cleaned from top to bottom with the high-pressure water gun.

8. The assembled stable sinking and floating deep-sea aquaculture cage according to claim 1, characterized in that: The underwater measurement and control system uses water environment physical and chemical monitoring chips, video surveillance, and image collection. The monitoring content includes water temperature, salinity, ammonia nitrogen, dissolved oxygen content, etc. Through intelligent linkage data processing and information transmission, remote management and control can be achieved on mobile terminals.

9. The assembled stable sinking and floating deep-sea aquaculture cage according to claim 1, characterized in that: The oxygen enrichment system is composed of a Roots blower, an air supply main pipe, an air valve, an air supply branch pipe, and a nano-gas explosion pipe. The air valve, the air supply branch pipe, and the nano-gas explosion pipe can be set to multiple groups of different water depths according to the depth of the frame system and practical needs. When the dissolved oxygen content is detected to be insufficient, the intelligent linkage data processing and information transmission system transmits the data command to the control host and the mobile terminal to realize remote or automatic control. Under normal circumstances, oxygen is supplied by the uppermost oxygen supply network below the middle of the frame system. When the frame system rises and the water body space is reduced to a certain proportion, the upper and bottom oxygen supply valves are closed, and the middle oxygen supply network is used to supply oxygen. When the frame system continues to rise and the water body space is reduced to a smaller size, the upper and middle oxygen supply network valves are closed, and the bottom oxygen supply network is used to supply oxygen.

10. The assembled stable sinking and floating deep-sea aquaculture cage according to claim 1, characterized in that: The fish collecting system consists of a buoyancy regulating system, a plurality of movable mechanisms arranged at the lower half of the periphery of the frame system, a fish collecting net bag at the bottom of the net, a fish collecting chute, a water pump, and a fish collecting boat. When collecting fish, one end of the fish collecting chute is connected to the plurality of movable mechanisms, and the other end is connected to the cabin. The movable mechanisms are turned on, the frame system is started to gradually float up, and water is flushed into the fish collecting chute by the water pump. As the water space is gradually reduced, the fish naturally swim to the cabin with the water flow. When the fish collecting is finished, the frame system can float completely to the surface of the water for easy maintenance.

11. A method for using an assembled stable sinking and floating deep-sea aquaculture cage according to any one of claims 1 to 6, characterized in that: The following steps are involved: A: The truss structure is made into standard assembled components, which is conducive to reducing the weight of the equipment, reducing the required buoyancy adjustment, reducing production costs, improving the structural strength, and reducing the impact of waves on the structure; it is conducive to installing a safety net on the outside, and setting supports on the bottom, surrounding facades and inside to enhance stability; B: Auxiliary buoyancy stabilization system is used to maintain the safety stability coefficient of the frame system when it sinks and floats, solving the dependence of deep-sea aquaculture on artificial labor; C: Multi-layered structure space is conducive to stratified breeding according to biological characteristics, building a three-dimensional food chain and breeding ecological chain; D: Use the real-time data from the Internet of Things management system and the water information collection center to timely grasp climate and environmental changes and external invasions; E: Adjust the buoyancy by adjusting the water volume to control the sinking and floating of the frame system, which is conducive to regular cleaning and maintenance of the net; F: Through the multi-channel setting of dissolved oxygen, the problem of insufficient pressure of Roots blower and difficulty in stratified oxygen supply is solved; G: By increasing the dissolved oxygen content, the aquaculture density can be increased several times, while improving the quality of aquatic products; H: By flushing water into the fish collecting chute, the fish will naturally swim to the cabin with the water flow, greatly saving manpower in the fish collecting operation.

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