Breeding system for seabed

Abstract

The present disclosure relates to a culture system for the seabed, comprising: a base for being disposed in the seabed; the floating box is arranged above the base, a first containing cavity used for containing liquid is formed in the floating box, and the first containing cavity is communicated with the outside in an openable and closable mode and used for introducing the liquid or discharging the liquid so as to change the overall weight and enable the floating box to move in the height direction; the culture net cage is connected above the floating box; the winding piece is arranged above the culture net cage; one end of the positioning piece is connected with the base, and the other end of the positioning piece sequentially penetrates through the aquaculture net cage and the floating box and then is connected to the winding piece in a retractable mode, and the positioning piece is used for limiting the floating box and the aquaculture net cage to move in the extending direction of the positioning piece. When the buoyancy tank floats to the sea level, the function of mooring an anchor chain can be achieved, and arrangement of the mooring anchor chain is omitted. And meanwhile, the culture net cage and the floating box can still be located on the base when being located on the seabed again through winding and unwinding of the winding piece, and displacement is avoided.

Description

Technical Field

[0001] The present disclosure relates to the technical field of subsea aquaculture, and more particularly, to an aquaculture system for the seabed. Background Art

[0002] The key to deep - sea and far - sea aquaculture lies in aquaculture equipment, namely aquaculture cages. Currently, common aquaculture cages include gravity cages, truss - type cages, aquaculture platforms, aquaculture workboats, etc. Among them, the mobile bottom - sitting aquaculture cage, as an important cage type, is often applied to waters with a water depth of 15m to 40m. The mobile bottom - sitting cage has the advantages of being movable in position, stable when sitting on the bottom, and convenient for net replacement. However, since the cage needs to sit on the bottom, it has relatively high requirements for the seabed. Generally, it requires a flat seabed with strong bearing capacity. Before the cage sits on the bottom, a detailed seabed topographic survey is required. If the seabed is uneven, seabed leveling operations need to be carried out. In case of soft foundation, seabed replacement filling and other construction work are required. This brings great difficulties to the adaptability and application promotion of the bottom - sitting cage. In addition, when the net of the cage needs to be replaced, the cage also needs to be lifted to the sea surface for replacement and then sit on the bottom again. During the process of lifting and sinking the cage, it is also easy to deviate from the original position. Therefore, when leveling the seabed in the early stage, the deviation caused by net replacement often needs to be considered, increasing the engineering quantity in the early stage. Summary of the Utility Model

[0003] The purpose of the present disclosure is to provide an aquaculture system for the seabed to solve the problem of large workload for seabed leveling in the early stage when placing aquaculture cages in related technologies.

[0004] To achieve the above purpose, the present disclosure provides an aquaculture system for the seabed, including:

[0005] A base for being arranged in the seabed;

[0006] A floating box arranged above the base, and a first accommodation cavity for accommodating liquid is formed inside the floating box. The first accommodation cavity is communicable with the outside in an openable and closable manner for introducing or discharging liquid to change the overall weight and enable the floating box to move along the height direction;

[0007] An aquaculture cage connected above the floating box;

[0008] A winding and receiving member arranged above the aquaculture cage; and

[0009] A positioning member, one end of which is connected to the base, and the other end sequentially passes through the aquaculture cage and the floating box and is connected to the winding and receiving member in a retractable manner for restricting the floating box and the aquaculture cage from moving along the extension direction of the positioning member.

[0010] Optionally, the base includes:

[0011] Multiple pile foundations, the multiple pile foundations are used to be arranged at intervals in the seabed along the length direction of the aquaculture cage; and

[0012] Multiple support seats, the support seats are fixedly connected to the upper sides of the corresponding pile foundations one by one, and are used to support the floating box, and at least part of the support seats are connected to the positioning members.

[0013] Optionally, the support seat includes:

[0014] A first support seat, the first support seat is respectively connected to the pile foundations at both ends of the base; and

[0015] A second support seat, the second support seat is connected to the pile foundation in the middle section of the base, and the positioning member is connected to the second support seat.

[0016] Optionally, the second support seat includes:

[0017] Positioning nails, fixedly connected to the pile foundation; and

[0018] A support plate, arranged above the positioning nails, and used to support the floating box, and the positioning member passes through the support plate and is connected to the positioning nails.

[0019] Optionally, the floating box includes:

[0020] Two floating box bodies, arranged at intervals on both sides in the width direction of the aquaculture cage and extending along the length direction of the aquaculture cage, the number of the bases is two, and they are respectively arranged corresponding to the two floating box bodies; and

[0021] Multiple cross bars, both ends of the cross bars are respectively connected to the two floating box bodies, and the multiple cross bars are arranged at intervals.

[0022] Optionally, the aquaculture cage includes:

[0023] Multiple columns, connected to each other at intervals above the floating box and extending away from the floating box, a second accommodation cavity for accommodating liquid is formed inside the column, and the second accommodation cavity is communicable with the outside in an openable and closable manner;

[0024] A support frame, both ends of the support frame are connected to two adjacent columns;

[0025] A side net, connected to the support frame, and the side net encloses to form the side wall of the aquaculture cage; and

[0026] A bottom net, arranged above the floating box, and edges of the bottom net are respectively connected to the support frame and the column.

[0027] Optionally, the column includes:

[0028] A first section, which is connected to the floating box, and the second accommodation cavity is located in the first section; and

[0029] A second section, which is arranged above the first section, wherein the diameter of the first section is larger than that of the second section.

[0030] Optionally, the support frame includes:

[0031] A plurality of vertical support rods, one end of each vertical support rod is connected to the floating box, and the plurality of vertical support rods are arranged at intervals; and

[0032] A plurality of horizontal support rods, which are arranged alternately with the vertical support rods to form a plurality of lattice frames. The number of the side nets is multiple, and they are respectively detachably connected in the lattice frames and connected to the vertical support rods and the horizontal support rods.

[0033] Optionally, the vertical support rod includes:

[0034] A first support rod; and

[0035] A second support rod, the second support rod is a hollow rod, a through hole opposite to the hollow rod is formed on the floating box, the through hole is isolated from the first accommodation cavity, and the positioning member sequentially passes through the through hole and the hollow rod and is connected to the winding and receiving member.

[0036] Optionally, the winding and receiving member is a winch, and the positioning member is a steel wire rope.

[0037] Through the above technical solutions, setting a base in the seabed to replace the work of filling the seabed can reduce the pre-operation time. And since the bottom of the floating box is located on the base, there is no suction force from the seabed mud surface on the bottom of the floating box at this time. By reducing the amount of water in the floating box, it is easy to drive the aquaculture cage to rise together, improving the maintenance and harvesting efficiency. The positioning member is threaded through the aquaculture cage and the floating box, which can not only play the role of a mooring anchor chain when the floating box floats to the sea level, eliminating the need for setting a mooring anchor chain. At the same time, when the floating box drives the aquaculture cage to rise and fall, the winding and receiving of the winding and receiving member can effectively ensure that the floating box and the aquaculture cage move along the extension direction of the positioning member, so as to ensure that the aquaculture cage and the floating box can still be located on the base when they re-settle on the seabed and will not be displaced.

[0038] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation section. Brief Description of the Drawings

[0039] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the accompanying drawings:

[0040] Figure 1 is a schematic diagram of an aquaculture system for the seabed according to an embodiment of the present disclosure.

[0041] Figure 2 is a schematic diagram showing the culture cage located on the seabed in the aquaculture system for the seabed according to an embodiment of the present disclosure.

[0042] Figure 3 is a schematic diagram showing the culture cage floating up in the aquaculture system for the seabed according to an embodiment of the present disclosure.

[0043] Figure 4 is a schematic diagram showing the connection of the water delivery pipeline with the first accommodation cavity and the second accommodation cavity in the aquaculture system for the seabed according to an embodiment of the present disclosure.

[0044] Figure 5 is a schematic diagram of a floating box in the aquaculture system for the seabed according to an embodiment of the present disclosure.

[0045] Figure 6 is a schematic diagram showing the connection of the positioning member with the second support base in the aquaculture system for the seabed according to an embodiment of the present disclosure.

[0046] Explanation of reference numerals

[0047] 1 - Base; 11 - Pile foundation; 12 - Support base; 121 - First support base; 122 - Second support base; 1221 - Positioning nail; 1222 - Support plate; 2 - Floating box; 20 - First accommodation cavity; 201 - Floating box body; 21 - Cross bar; 22 - Through hole; 3 - Culture cage; 31 - Column; 310 - Second accommodation cavity; 311 - First section; 312 - Second section; 32 - Bracing frame; 321 - Horizontal bracing rod; 322 - First bracing rod; 323 - Second bracing rod; 33 - Side net; 4 - Reel; 5 - Positioning member; 6 - Water delivery pipeline; 7 - Seabed; 8 - Sea level. Specific embodiments

[0048] The following will describe in detail the specific embodiments of the present disclosure with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustrating and explaining the present disclosure, and are not used to limit the present disclosure.

[0049] In the present disclosure, unless otherwise stated, the orientation terms such as "upper" and "lower" are defined according to the arrangement direction during the actual use of the aquaculture system, and the orientation terms such as "inner" and "outer" are defined according to the contour of the corresponding component. The terms "first", "second", etc. are used to distinguish different components and do not have an order or importance. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same reference numerals in different drawings represent the same or similar elements.

[0050] According to an embodiment of the present disclosure, as Figures 1 to 6 shown, a aquaculture system for the seabed is provided, which includes a base 1, a floating box 2, an aquaculture net cage 3, a winding and receiving member 4, and a positioning member 5. The base 1 can be used to be arranged on the seabed 7. The floating box 2 can be arranged above the base 1, and a first accommodation cavity 20 for accommodating liquid is formed inside the floating box 2. The first accommodation cavity 20 is communicable with the outside in an openable and closable manner for introducing or discharging liquid to change the overall weight, so that the floating box 2 moves along the height direction. The aquaculture net cage 3 is connected above the floating box 2. The winding and receiving member 4 is arranged above the aquaculture net cage 3. One end of the positioning member 5 is connected to the base 1, and the other end sequentially passes through the aquaculture net cage 3 and the floating box 2 and is connected to the winding and receiving member 4 in a retractable manner for restricting the floating box 2 and the aquaculture net cage 3 from moving along the extending direction of the positioning member 5.

[0051] Through the above technical solution, setting the base 1 on the seabed 7 instead of filling the seabed 7 can reduce the pre-operation time. And since the bottom of the floating box 2 is seated on the base 1, there is no suction force from the mud surface of the seabed 7 on the bottom of the floating box 2 at this time. By reducing the amount of water in the floating box 2, it is easy to drive the aquaculture net cage 3 to rise together, improving the maintenance and harvesting efficiency. The positioning member 5 is arranged through the aquaculture net cage 3 and the floating box 2. It can not only play the role of a mooring anchor chain when the floating box 2 floats to the sea level 8, eliminating the need for setting a mooring anchor chain. At the same time, when the floating box 2 drives the aquaculture net cage 3 to rise and fall, the retraction and release of the winding and receiving member 4 can effectively ensure that the floating box 2 and the aquaculture net cage 3 move along the extending direction of the positioning member 5, so as to ensure that the aquaculture net cage 3 and the floating box 2 can still be seated on the base 1 when they are re-seated on the seabed 7 without displacement.

[0052] When installing the aquaculture system on the seabed 7, it is necessary to first set the base 1, connect the positioning member 5 to the base 1, then set the aquaculture cage 3 on the floating box 2, and then pass the positioning member 5 through the floating box 2 and the aquaculture cage 3 and connect it to the winding member 4 on the aquaculture cage 3. At this time, water is added to the floating box 2 to make the floating box 2 drive the aquaculture cage 3 to sink, and at the same time, the winding member 4 winds the positioning member 5 to make the descending speeds of the aquaculture cage 3 and the winding member 4 consistent until the floating box 2 sinks to the seabed 7 and sits on the base 1. When the floating box 2 sits on the base 1, at this time, the upper edge of the aquaculture cage 3 and the winding member 4 are both above the sea level. When the aquaculture cage 3 or the floating box 2 needs to be repaired or harvest seafood, the floating box 2 is drained of water to make the floating box 2 drive the aquaculture cage 3 to float, and at the same time, the winding member 4 releases the positioning member 5 until the upper surface of the floating box 2 is exposed above the sea level 8, so as to carry out repair and harvesting work.

[0053] It should be noted that here, the winding member 4 can be a winch, the positioning member 5 can be a steel wire rope, the winding member 4 and the positioning member 5 can be set in one-to-one correspondence, or one winding member 4 can correspond to multiple positioning members 5. The present disclosure also does not limit this. In the scheme where the winding member 4 and the positioning member 5 are in one-to-one correspondence, multiple positioning members 5 can be arranged at intervals, and the corresponding connected winding members 4 are also arranged at intervals to improve the anchoring ability of the positioning member 5 and prevent the possibility of deviation during the rising and falling process of the floating box 2 and the aquaculture cage 3 when the sea waves are too large. On the connection surface between the floating box 2 and the aquaculture cage 3, the edge of the floating box 2 can be located at the edge of the aquaculture cage 3, so that a platform can be formed on the upper surface of the floating box 2. When the aquaculture cage 3 is being repaired, the staff can step on the upper surface of the floating box 2 to move. In addition, the positioning member 5 can be a multi-section telescopic steel pipe, and the winding member 4 can be a fixed end connected to the steel pipe at the uppermost section of the aquaculture cage 3. The present disclosure does not limit this.

[0054] Furthermore, as Figures 1 to 3As shown, the base 1 may include a plurality of pile foundations 11 and a plurality of support bases 12. The plurality of pile foundations 11 may be used to be arranged at intervals in the seabed 7 along the length direction of the aquaculture cage 3, where the length direction may be the same as the extending direction of the floating box 2, and the present disclosure does not limit this. The support bases 12 are fixedly connected to the upper sides of the pile foundations 11 one by one, and are used to support the floating box 2 and the aquaculture cage 3 on the floating box 2, and the support bases 12 may be at least partially connected to the positioning members 5. By supporting the aquaculture cage 3 through the support bases 12 arranged on the pile foundations 11, the influence of the suction force of the seabed 7 on the aquaculture cage 3 can be effectively reduced. In addition, during the process of driving the pile foundations 11 into the seabed 7, the installation of the plurality of pile foundations 11 can be leveled, so that the upper ends of the plurality of pile foundations 11 are located on the same plane. In this way, even if the seabed 7 is uneven, the aquaculture cage 3 can be prevented from tilting due to the uneven seabed by leveling the positions of the pile foundations 11, so that the aquaculture system can adapt to seabeds 7 with different terrains without filling the seabed 7, improving the adaptability of the aquaculture system. After the support bases 12 are connected to the pile foundations 11 one by one, grouting reinforcement can also be carried out between the support bases 12 and the pile foundations 11. Through grouting, the support bases 12 can be firmly connected to the pile foundations 11, reducing the possibility that the support bases 12 connected to the positioning members 5 break away from the pile foundations 11 due to too strong sea winds and waves.

[0055] Further, as Figures 1 to 6 shown, the support base 12 may include a first support base 121 and a second support base 122. The first support base 121 may be respectively connected to the pile foundations 11 at both ends of the base 1, and the second support base 122 is connected to the pile foundations 11 in the middle section of the base 1, and the positioning member 5 is connected to the second support base 122. In this way, there is no need to additionally provide a structure cooperating with the positioning member 5, and only the support base 12 that supports the aquaculture cage 3 and the floating box 2 on the pile foundation 11 is needed. In this way, the support base 12 can not only provide support for the floating box 2 and the aquaculture cage 3, but also cooperate with the positioning member 5 to reduce the additional components in the aquaculture system and reduce the cost. And the number of the positioning members 5 may be less than the number of the support bases 12 to complete the positioning. There is no need to connect all the support bases 12 to the positioning members 5, and the construction time during the construction of the aquaculture system is also reduced. The second support base 122 may be arranged in one-to-one correspondence with the positioning member 5, or one positioning member 5 may correspond to multiple second support bases 122 or multiple positioning members 5 may correspond to one second support base 122, and the present disclosure does not limit this.

[0056] Further, as Figure 6As shown, the second support base 122 may include a positioning nail 1221 and a support plate 1222. The positioning nail 1221 may be fixedly connected to the pile foundation 11. The support plate 1222 is disposed above the positioning nail 1221 and is used to support the floating box 2 and the aquaculture cage 3 on the floating box 2. The positioning member 5 passes through the support plate 1222 and is connected to the positioning nail 1221. In this way, the connection part of the positioning member 5 and the second support base 122 is located in the positioning nail 1221, which will not affect the shape of the support plate 1222, so it will not affect the support of the support plate 1222 for the aquaculture cage 3. The first support base 121 may also be a structure in which a positioning nail is matched with a support plate, and the present disclosure does not limit this. When necessary, shear keys may be provided on the positioning nail 1221 to improve the connection effect between the support base 12 and the pile foundation 11. The support plate 1222 may be made of a steel plate or a precast reinforced concrete slab, and lifting points may be provided on the support plate 1222 for installation. Considering that the aquaculture cage 3 needs to have the ability to resist lateral sliding under the action of ocean currents, grooves or uneven points may be added to the area where the bottom of the support plate 1222 and the floating box 2 contacts the support plate 1222 to increase the friction coefficient between the support plate 1222 and the floating box 2.

[0057] According to an embodiment of the present disclosure, as Figure 5 shown, the floating box 2 may include two floating box bodies 201 and a plurality of cross bars 21. The two floating box bodies 201 may be arranged at intervals on both sides in the width direction of the aquaculture cage 3 and extend along the length direction of the aquaculture cage 3. The number of the bases 1 is two and they are respectively arranged corresponding to the two floating box bodies 201. Both ends of the cross bar 21 are respectively connected to the two floating box bodies 201, and the plurality of cross bars 21 are arranged at intervals. In this way, the bases 1 can support the floating box 2 from both sides respectively, improving the flatness of the bottom of the aquaculture cage 3.

[0058] According to an embodiment of the present disclosure, as Figure 1 and Figure 4As shown in the figure, the aquaculture cage 3 may include multiple upright columns 31, support frames 32, side nets 33 and a bottom net. The material of the upright columns 31 may be selected from steel or cast with reinforced concrete, and the present disclosure does not limit this. Multiple upright columns 31 may be connected above the floating box 2 at intervals and extend away from the floating box 2. A second accommodation cavity 310 for accommodating liquid is formed inside the upright column 31, and the second accommodation cavity 310 is communicable with the outside in an openable and closable manner. Both ends of the support frame 32 may be connected to two adjacent upright columns 31. The side net 33 may be connected to the support frame 32, and the side net 33 encloses to form the side wall of the aquaculture cage 3. The bottom net may be arranged above the floating box 2, and the edges of the bottom net are respectively connected to the support frame 32 and the upright column 31. Both the bottom net and the side net 33 may be of a one-piece structure or a multi-piece splicing structure, and the bottom net and the side net 33 may be made of ultra-high molecular weight polyethylene netting or metal netting, and the present disclosure does not limit this. When the bottom net and the side net 33 are made of ultra-high molecular weight polyethylene netting, they may be connected to the upright column 31 or the support frame 32 by tying. When the bottom net and the side net 33 are made of metal netting, they may also be connected by welding or bolts, and the present disclosure does not limit this either. An openable and closable top net may be arranged at the top of the aquaculture cage 3 to prevent seabirds from entering to steal fish. A fixed platform may also be arranged at the top of the aquaculture cage 3 according to the quantity and position of the positioning members 5, and the winding and receiving member 4 may be arranged on the fixed platform. It should be noted that when multiple aquaculture cages 3 need to be arranged side by side, it is also possible that two adjacent aquaculture cages 3 share the upright column 31 between them, and the present disclosure does not limit this.

[0059] Here, a water transportation pipeline 6 may be arranged in the aquaculture system, that is, the water transportation pipeline 6 may run through the upright column 31 and be respectively connected to the first accommodation cavity 20 and the second accommodation cavity 310. Here, the water transportation pipeline 6 may include a water inlet pipeline and a water outlet pipeline. The water inlet and outlet of the first accommodation cavity 20 and the second accommodation cavity 310 are independently connected, and the water flow between the first accommodation cavity 20 and the second accommodation cavity 310 is not communicated. Multiple water transportation pipelines 6 may all enter from the top of the upright column 31 and be respectively connected to the first accommodation cavity 20 and the second accommodation cavity 310 inside, so as to more precisely adjust the water volume in the first accommodation cavity 20 and the second accommodation cavity 310, thereby making a precise adjustment to the settlement of the floating box 2 and the aquaculture cage 3. Both the first accommodation cavity 20 and the second accommodation cavity 310 may be divided into multiple mutually isolated ballast tanks, and multiple water transportation pipelines 6 may also be respectively independently connected to multiple ballast tanks of the first accommodation cavity 20 and multiple ballast tanks of the second accommodation cavity 310 to independently carry out water inlet and outlet for different ballast tanks. In this way, when a single ballast tank is damaged, the remaining ballast tanks can continue to function, improving the fault tolerance rate of the aquaculture system. In addition, to improve the water inlet and outlet efficiency, water pumps may be connected to both the water inlet pipeline and the water outlet pipeline, and the present disclosure does not limit this.

[0060] Further, as Figures 1 to 4As shown, the column 31 may include a first section 311 and a second section 312. The first section 311 is connected to the pontoon 2, the second accommodating cavity 310 is located in the first section 311, and the second section 312 is disposed above the first section 311. The diameter of the first section 311 is greater than the diameter of the second section 312. This ensures that the column 31 can provide the same buoyancy and ballasting effect as the pontoon 2 while also reducing the material usage of the column 31 and lowering costs.

[0061] According to one embodiment of the present disclosure, Figures 1 to 4 As shown, the support frame 32 may include a plurality of vertical support rods and a plurality of horizontal support rods 321. One end of the vertical support rod can be connected to the pontoon 2, and the plurality of vertical support rods are arranged at intervals. The horizontal support rods 321 and the vertical support rods can be arranged in an interlaced manner to form a plurality of lattice frames. The number of side nets 33 can be multiple, and they can be detachably connected to the lattice frames and connected to the vertical support rods and the horizontal support rods. In this way, the side nets 33 can be respectively arranged in the plurality of lattice frames formed by the horizontal support rods 321 and the vertical support rods, which can not only ensure the closed function of the aquaculture cage 3 and prevent the escape of seafood, but also the setting of multiple side nets 33 can reduce the possibility of deformation of the side nets 33. In addition, when the side nets 33 need to be replaced, only part of the side nets 33 can be replaced according to the damage and dirtiness of the side nets 33 at different positions, thereby reducing maintenance time and cost.

[0062] Further, if Figures 1 to 4 As shown, the vertical support rods may include a first support rod 322 and a second support rod 323. The second support rod 323 may be a hollow rod. A through hole 22 is provided on the buoyancy chamber 2, which is arranged opposite to the hollow rod. The through hole 22 is isolated from the first accommodating chamber 20. The positioning member 5 may be connected to the reeling member 4 through the through hole 22 and the hollow rod in sequence. The hollow rod may improve the positioning effect and further prevent the aquaculture cage 3 from being misaligned during the floating and sinking process. The hollow rod may be a steel pipe, or other metal pipe or polymer pipe, which is not limited in the present disclosure. The reeling member 4 is a winch, and the positioning member 5 is a steel wire rope. The winch and the steel wire rope are both arranged in multiple and one-to-one correspondence. The steel wire rope and the hollow rod may also be arranged in one-to-one correspondence. Specifically, two hollow rods may be arranged above each base 1 at intervals to further improve the positioning effect of the buoyancy chamber 2 and the aquaculture cage 3 during the floating and sinking process and prevent the two from moving around.

[0063] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0064] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, without conflict, they can be combined in any suitable way. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.

[0065] In addition, any combination can be made among various different embodiments of the present disclosure, as long as it does not violate the idea of the present disclosure, and it should equally be regarded as the content disclosed by the present disclosure.

Claims

1. An aquaculture system for the seabed, characterized in that, include: a base for being placed in the seabed; A buoyancy box is disposed above the base, and a first accommodating chamber for accommodating liquid is formed inside the buoyancy box. The first accommodating chamber is openably and closably connected to the outside and is used to allow liquid to enter or drain the buoyancy box to change its overall weight and move the buoyancy box in a height direction. A breeding cage connected above the buoyancy tank; A reel is provided above the aquaculture cage; and A positioning member, one end of which is connected to the base, and the other end of which passes through the aquaculture cage and the buoyancy box in sequence and is retractably connected to the reel, for limiting the movement of the buoyancy box and the aquaculture cage along the extension direction of the positioning member.

2. The aquaculture system for the seabed according to claim 1, characterized in that The base comprises: a plurality of pile foundations, the plurality of pile foundations being arranged in the seabed at intervals along the length direction of the aquaculture cage; and A plurality of support seats are fixedly connected one by one above the pile foundation for supporting the buoyancy box, and the support seats are at least partially connected to the positioning member.

3. The aquaculture system for the seabed according to claim 2, characterized in that, The support base comprises: a first support seat, the first support seat being connected to the pile foundations at both ends of the base; and A second support seat is connected to the pile foundation of the middle section of the base, and the positioning member is connected to the second support seat.

4. The aquaculture system for the seabed according to claim 3, characterized in that, The second support base includes: Positioning nails, fixedly connected to the pile foundation; and A support plate is provided above the positioning pins and is used to support the buoyancy box. The positioning member passes through the support plate and is connected to the positioning pins.

5. The aquaculture system for the seabed according to claim 1, characterized in that, The buoyancy tank comprises: Two buoyancy tank bodies are arranged at intervals on both sides of the aquaculture cage in the width direction and extend along the length direction of the aquaculture cage, and the number of the bases is two, and they are respectively arranged corresponding to the two buoyancy tank bodies; and A plurality of cross bars are provided, wherein two ends of the cross bars are respectively connected to the two buoyancy tank bodies, and the plurality of cross bars are arranged at intervals.

6. The aquaculture system for the seabed according to claim 1, characterized in that, The breeding cage comprises: A plurality of columns are connected above the buoyancy box at intervals and extend in a direction away from the buoyancy box, wherein a second accommodating cavity for accommodating liquid is formed inside the columns, and the second accommodating cavity is openably and closably connected to the outside; A support frame, wherein two ends of the support frame are connected to two adjacent columns; Side nets, connected to the support frame, the side nets enclosing and forming side walls of the aquaculture cage; and A bottom net is arranged above the buoyancy box, and edges of the bottom net are respectively connected to the support frame and the columns.

7. The aquaculture system for the seabed according to claim 6, characterized in that, The column comprises: a first section, the first section being connected to the buoyancy chamber, the second accommodation chamber being located in the first section; and The second section is arranged above the first section, wherein a diameter of the first section is greater than a diameter of the second section.

8. The aquaculture system for the seabed according to claim 6, characterized in that, The support frame comprises: a plurality of vertical struts, one end of each of the vertical struts being connected to the buoyancy chamber, the plurality of vertical struts being arranged at intervals; and A plurality of horizontal struts are arranged alternately with the vertical struts to form a lattice frame. The number of the side nets is multiple and they are detachably connected to the lattice frame and connected to the vertical struts and the horizontal struts.

9. The aquaculture system for the seabed according to claim 8, characterized in that, The vertical support rod comprises: first pole; and The second support rod, the second support rod being a hollow rod, a through hole opposite to the hollow rod is formed in the floating box, the through hole is isolated from the first accommodating cavity, and the positioning member is connected to the winding and receiving member through the through hole and the hollow rod in sequence.

10. The aquaculture system for the seabed according to claim 1, characterized in that, The winding and receiving member is a winch, and the positioning member is a steel wire rope.

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