Rectangular culture net cage with low freeboard

Abstract

The utility model discloses a rectangular culture net cage with a low freeboard, and relates to the technical field of culture equipment, the rectangular culture net cage comprises a base, a frame structure, an upper building structure and a second support column, the middle part of the base is hollowed out and is provided with a first netting; the frame structure comprises a plurality of first supporting columns and a plurality of connecting assemblies, the first supporting columns are arranged on the base, and the connecting assemblies are arranged between every two adjacent first supporting columns; a second netting is arranged on the outer side of the frame structure; the second supporting column is arranged on the base, and the height of the second supporting column is larger than that of the first supporting column; the upper-layer building structure is arranged at the top of the second supporting column; a walkway and an operation room are arranged in the upper-layer building structure, and breeding equipment is arranged in the operation room. The height of the second supporting column is higher than that of the first supporting column, so that the height of the second supporting column provided with the superstructure is higher so as to avoid impact of sea waves, the design height of the first supporting column serving as a freeboard is reduced, and steel consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of aquaculture equipment, in particular to a low-freeboard rectangular aquaculture cage. Background Art

[0002] Currently, most marine aquaculture cages utilize traditional designs, which present significant deficiencies in terms of steel usage, wave resistance, personnel safety, and aquaculture efficiency. Specifically, traditional cage designs often feature high freeboard, which increases steel usage and costs. Furthermore, they experience significant wave-riding, posing a threat to personnel safety.

[0003] Therefore, there is an urgent need for a new type of aquaculture cage to solve the safety problems caused by the high freeboard design and waves of the existing aquaculture cages. Utility Model Content

[0004] The main purpose of the utility model is to provide a low-freeboard rectangular aquaculture cage, aiming to solve the safety problems caused by the high freeboard design and the waves of the existing aquaculture cages.

[0005] To achieve the above-mentioned purpose, the low-freeboard rectangular aquaculture cage proposed in the present invention includes a base, a frame structure, a superstructure structure and several second support columns. The middle part of the base is hollowed out and provided with a first net; the frame structure includes multiple first support columns and multiple connecting components, multiple first support columns are arranged on the base, and multiple connecting components are arranged between two adjacent first support columns; a second net is provided on the outside of the frame structure; the second support columns are arranged on the base, and the height of the second support columns is greater than that of the first support columns; the superstructure structure is arranged on the top of the second support columns; a walkway and an operating room are provided inside the superstructure structure, and aquaculture equipment is provided inside the operating room.

[0006] In one embodiment, the superstructure structure is configured as a box beam, the exterior of the box beam is a closed structure, the interior of the box beam is a hollow structure, and a walkway and an operating room are provided inside the box beam.

[0007] In one embodiment, the second supporting column is provided with a staircase, the top of the staircase extends to the bottom of the box beam, and the bottom of the staircase extends to the connecting assembly.

[0008] In one embodiment, the plurality of first support columns are symmetrically arranged about the vertical line of gravity of the base; the second support column is arranged in the middle of the base, and the center of gravity of the superstructure structure coincides with the vertical line of gravity of the base.

[0009] In one embodiment, the base includes two trusses and a plurality of first connecting rods, the extension direction of the two trusses is set along the first direction, and a plurality of first connecting rods are set between the two trusses; the area enclosed by the two trusses and the plurality of first connecting rods is provided with a first net; a plurality of first support columns are respectively arranged on the two trusses at intervals along the first direction; the connecting assembly includes a transverse connecting rod and a longitudinal connecting rod, a transverse connecting rod is provided between two adjacent first support columns on the same truss, and a longitudinal connecting rod is provided between two adjacent first support columns on different trusses.

[0010] In one embodiment, triangular connecting plates are provided between adjacent transverse connecting rods and longitudinal connecting rods.

[0011] In one embodiment, the rectangular breeding cage further includes a plurality of second connecting rods; the first end of the second connecting rod is connected to the first support column, the second end of the second connecting rod is connected to the longitudinal connecting rod, and the second connecting rod, the longitudinal connecting rod and the first support column form a triangular support structure; or, the first end of the second connecting rod is connected to the first support column, the second end of the second connecting rod is connected to the first connecting rod, and the second connecting rod, the first connecting rod and the first support column form a triangular support structure.

[0012] In one embodiment, a third mesh is provided on the triangular support structure.

[0013] In one embodiment, the rectangular breeding cage further includes a plurality of third connecting rods; the first ends of the third connecting rods are connected to the first support column, the second ends of the third connecting rods are connected to the transverse connecting rods, and the third connecting rods, the transverse connecting rods and the first support column form a triangular support structure.

[0014] In one embodiment, the rectangular aquaculture cage further includes a mooring component, wherein a fixed end of the mooring component is arranged at the bottom of the base, and a movable end of the mooring component is used to connect to the seabed.

[0015] The technical solution of the present invention adopts a low-freeboard rectangular aquaculture cage, which includes a base, a frame structure, a superstructure structure and a plurality of second support columns. The middle part of the base is hollowed out and provided with a first net; the frame structure includes a plurality of first support columns and a plurality of connecting components, the plurality of first support columns are arranged on the base, and the plurality of connecting components are arranged between two adjacent first support columns; a second net is provided on the outside of the frame structure; the second support columns are arranged on the base, and the height of the second support columns is greater than that of the first support columns; the superstructure structure is arranged on the top of the second support columns; a walkway and an operating room are provided inside the superstructure structure, and the operating room is provided inside the operating room. Aquaculture equipment is provided.

[0016] The technical solution of the present invention adopts a low freeboard and high superstructure design, that is, by separately setting a first support column and a second support column, and making the height of the second support column higher than that of the first support column, the superstructure structure supported by the second support column is located at a higher position, thereby preventing the impact of wave impact and upwelling on the superstructure structure; at the same time, the design height of the first support column as the freeboard can be reduced to the necessary limit, which can not only prevent the escape of farmed fish due to the low height of the second net, but also save steel as much as possible and reduce the manufacturing cost of the cage. In addition, because the superstructure is set on the top of the second support column, the staff does not need to go through the aisle at the bottom of the cage to operate the equipment in severe sea conditions. They only need to go through the aisle in the superstructure to go to the operation room to operate the aquaculture equipment, thereby ensuring the safety of personnel and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 This is a structural schematic diagram of an embodiment of a low-freeboard rectangular aquaculture cage provided by the utility model.

[0019] Description of Figure Numbers:

[0020] 1. Base; 11. Truss; 12. First connecting rod; 2. Frame structure; 21. First support column; 22. Connection assembly; 221. Horizontal connecting rod; 222. Longitudinal connecting rod; 23. Triangular connecting plate; 3. Superstructure structure; 4. Second support column; 5. Second connecting rod.

[0021] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] 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 embodiments described 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 making creative efforts shall fall within the scope of protection of the present invention.

[0023] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0024] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0025] Currently, most marine aquaculture cages utilize traditional designs, which present significant deficiencies in terms of steel usage, wave resistance, personnel safety, and aquaculture efficiency. Specifically, traditional cage designs often feature high freeboard, which increases steel usage and costs. Furthermore, they experience significant wave-riding, posing a threat to personnel safety.

[0026] Therefore, there is an urgent need for a new type of aquaculture cage to solve the safety problems caused by the high freeboard design and waves of the existing aquaculture cages.

[0027] In order to solve the above problems, the utility model proposes a low freeboard rectangular aquaculture cage.

[0028] See also Figure 1 In one embodiment of the utility model, the low-freeboard rectangular aquaculture cage includes a base 1, a frame structure 2, a superstructure structure 3 and several second support columns 4. The middle part of the base 1 is hollowed out and provided with a first net; the frame structure 2 includes multiple first support columns 21 and multiple connecting components 22, multiple first support columns 21 are arranged on the base 1, and multiple connecting components 22 are arranged between two adjacent first support columns 21; a second net is provided on the outside of the frame structure 2; the second support columns 4 are arranged on the base 1, and the height of the second support columns 4 is greater than the height of the first support columns 21; the superstructure structure 3 is arranged on the top of the second support columns 4; a walkway and an operation room are provided inside the superstructure structure 3, and aquaculture equipment is provided inside the operation room.

[0029] It should be noted that the freeboard refers to the vertical distance between the full load waterline and the upper edge of the structure, that is, the distance between the upper structure and the water surface when the structure floats on the water. In the present application, when the low-freeboard rectangular culture net cage floats on the water surface, the part of the top of the first support column 21 protruding between the water surface is the freeboard. Since the base 1 is provided with the first net cover, the frame structure 2 formed by the first support column 21 and the connecting assembly 22 is provided with the second net cover outside, and thus the area enclosed by the first net cover and the second net cover is the culture area of the present rectangular culture net cage. The height of the freeboard reflects the height of the first support column 21 protruding from the water surface, and in order to prevent the cultured fish from jumping out of the water and out of the second net cover, the freeboard needs to be set to an appropriate height to prevent the cultured fish from escaping; however, the height of the freeboard should not be too high, otherwise it will greatly increase the material consumption and cost.

[0030] The technical scheme of the present application adopts a low-freeboard high superstructure design, that is, by respectively providing the first support column 21 and the second support column 4, and making the height of the second support column 4 higher than the height of the first support column 21, the superstructure structure 3 supported by the second support column 4 is located at a higher position, avoiding the influence of sea waves and overtopping on the superstructure structure 3; at the same time, the design height of the first support column 21 as the freeboard can be reduced to the necessary limit range, which can not only prevent the cultured fish from escaping due to the low height of the second net cover, but also save the amount of steel as much as possible and reduce the cost of net cage manufacturing. In addition, since the superstructure is arranged at the top of the second support column 4, the staff does not need to pass through the net cage bottom passage to operate the equipment in bad sea conditions, but only needs to pass through the walkway in the superstructure to the operation room to operate the culture equipment, thereby ensuring the safety of personnel and equipment.

[0031] In addition, in order to solve the bearing problem of the superstructure, in the embodiment of the present application, please refer to Figure 1 The superstructure structure 3 is arranged as a box beam, the outside of the box beam is a closed structure, the inside of the box beam is a hollow structure, and the inside of the box beam is provided with a walkway and an operation room. In this way, by arranging the superstructure as a box beam, the box beam as the main bearing structure is combined with the superstructure function, and the box beam can provide strong bending and torsional strength for the superstructure structure 3 located at a high height, thereby ensuring the strength and reliability of the superstructure. Compared with the superstructure of the existing oil platform, the superstructure of the oil platform has very rich functions and has a large demand for space, and the equipment weight is very large, so even if it is designed as a box beam, it cannot meet the strength requirement; while for the culture platform, the demand for special culture equipment and the number of operating personnel is relatively small, and the introduction of the design of the box beam is extremely consistent with the economic principle of the net cage design. The design of combining the box beam with the superstructure function in the present application not only provides necessary bearing members, but also enriches the functionality of the superstructure, and improves the utilization rate of the overall structure.

[0032] To address the inconvenience faced by workers in moving between the superstructure 3 and the frame structure 2, in an embodiment of the present invention, a stairway is provided on the second support column 4. The top of the stairway extends to the bottom of the box beam, and the bottom of the stairway extends to the connection assembly 22. Thus, by providing the aforementioned stairway, workers can conveniently move between the box beam and the connection assembly 22 via the stairway, and then proceed from the connection assembly 22 to the various first support columns 21, thereby facilitating the inspection and maintenance of the frame structure 2.

[0033] In order to solve the problem of balancing the rectangular aquaculture cage on the waves, in the embodiment of the present utility model, please refer to Figure 1 , multiple first support columns 21 are symmetrically arranged about the vertical line of gravity of the base 1; the second support column 4 is arranged in the middle of the base 1, and the center of gravity of the superstructure structure 3 coincides with the vertical line of gravity of the base 1.

[0034] In this embodiment, by arranging the first support column 21 symmetrically about the vertical line of gravity of the base 1, the influence of the arrangement of the first support column 21 on the center of the base 1 is avoided, and by arranging the second support column 4 in the middle of the base 1 and making the center of gravity of the superstructure structure 3 coincide with the vertical line of gravity of the base 1, the influence of the second support column 4, the superstructure and other components or building structures on the center of the base 1 is maximized, which helps the aquaculture platform maintain the balance of the center of gravity, reduces the impact of wave impact and upstream waves on the stability of the aquaculture platform, and improves the aquaculture platform's ability to resist wind and waves.

[0035] In order to solve the problem of insufficient strength of the frame structure 2, in the embodiment of the present utility model, please refer to Figure 1 The base 1 includes two trusses 11 and a plurality of first connecting rods 12. The two trusses 11 extend in a first direction, and a plurality of first connecting rods 12 are disposed between the two trusses 11. A first net is disposed in the area enclosed by the two trusses 11 and the plurality of first connecting rods 12. A plurality of first support columns 21 are spaced apart along the first direction on the two trusses 11. The connecting assembly 22 includes a transverse connecting rod 221 and a longitudinal connecting rod 222. A transverse connecting rod 221 is disposed between two adjacent first support columns 21 on the same truss 11, and a longitudinal connecting rod 222 is disposed between two adjacent first support columns 21 on different trusses 11. Thus, by providing transverse and longitudinal support rods between the first support columns 21, the transverse and longitudinal strength of the frame structure 2 is increased, thereby improving the wind and wave resistance of the frame structure 2.

[0036] In order to avoid excessive stress concentration at the connection between the transverse connecting rod 221, the longitudinal connecting rod 222 and the first support column 21, in the embodiment of the present utility model, please refer toFigure 1 A triangular connecting plate 23 is provided between adjacent transverse connecting rods 221 and longitudinal connecting rods 222. By providing the triangular connecting plate 23 between adjacent transverse connecting rods 221 and longitudinal connecting rods 222, the local stiffness between the transverse connecting rods 221 and longitudinal connecting rods 222 is increased, thereby improving the deformation resistance of the local area. This prevents excessive stress concentration from damaging the structures of the transverse connecting rods 221, the first support column 21, and the longitudinal connecting rods 222, thereby helping to more evenly distribute the load to each component, thereby ensuring the safety of each component.

[0037] In order to solve the problem that the longitudinal section of the aquaculture platform is not strong enough and is easily damaged when the aquaculture platform is affected by severe sea conditions, in the embodiment of the present utility model, please refer to Figure 1 The rectangular breeding cage also includes multiple second connecting rods 5; the first end of the second connecting rod 5 is connected to the first support column 21, the second end of the second connecting rod 5 is connected to the longitudinal connecting rod 222, and a triangular support structure is formed between the second connecting rod 5, the longitudinal connecting rod 222 and the first support column 21; or, the first end of the second connecting rod 5 is connected to the first support column 21, the second end of the second connecting rod 5 is connected to the first connecting rod 12, and a triangular support structure is formed between the second connecting rod 5, the first connecting rod 12 and the first support column 21.

[0038] In this embodiment, a second connecting rod 5 is provided, and the second connecting rod 5 forms a triangular support structure with the first support column 21 and the longitudinal connecting rod 222, or the second connecting rod 5 forms a triangular support structure with the first support column 21 and the first connecting rod 12, so as to utilize the stability of the triangular support structure to improve the longitudinal cross-sectional structural strength of the breeding platform, thereby greatly improving the overall strength and wind and wave resistance of the cage.

[0039] To address the issues of irrational water separation in traditional cage aquaculture, resulting in a need for improved aquaculture efficiency and safety, in an embodiment of the present invention, a third net is provided on the triangular support structure. By providing the third net on the triangular support structure, the water body originally enclosed by the first and second nets within the rectangular aquaculture cage is further divided into multiple zones, allowing different types of fish to be cultured in each zone, increasing the number of aquaculture species. Furthermore, important fish species can be cultured within the area enclosed by the third net. Even if the second net ruptures along the first direction and the opposite direction of the first direction, the escape of important fish within the area enclosed by the third net is prevented, thereby improving aquaculture safety and preventing significant economic losses caused by the damage of a single net.

[0040] Furthermore, as an optional embodiment, the mesh of the third net can be set to a triangle. Due to the stability of the triangle, even when the mesh of the net is subjected to external forces such as water flow, it is not easy to deform or twist, which helps to maintain the overall shape of the third net and ensure that it can still maintain good performance under harsh environmental conditions.

[0041] In order to solve the problem that the structural strength of the transverse section of the aquaculture platform is insufficient and the aquaculture platform is easily damaged when it is affected by severe sea conditions in the transverse direction, in an embodiment of the present utility model, the rectangular aquaculture cage also includes a plurality of third connecting rods; the first end of the third connecting rod is connected to the first support column 21, and the second end of the third connecting rod is connected to the transverse connecting rod 221, and the third connecting rod, the transverse connecting rod 221 and the first support column 21 form a triangular support structure.

[0042] In this embodiment, a third connecting rod is provided, and a triangular support structure is formed between the third connecting rod, the transverse connecting rod 221 and the first support column 21, so that the stability of the triangular support structure is utilized to improve the longitudinal cross-sectional structural strength of the breeding platform, thereby greatly improving the overall strength and wind and wave resistance of the cage.

[0043] Since rectangular aquaculture cages float on the sea surface due to the influence of ocean currents and waves, if the rectangular aquaculture cages drift away from the designated sea area, not only will it be difficult to subsequently locate the rectangular aquaculture cages for aquaculture and fish harvesting, but the sea conditions outside the designated sea area may not be suitable for the growth of the fish in the rectangular aquaculture cages. Therefore, it is necessary to prevent the rectangular aquaculture cages from drifting away from the designated sea area. To solve the problem of how to prevent the rectangular aquaculture cages from drifting away from the designated sea area, in an embodiment of the present invention, the rectangular aquaculture cages further include a mooring assembly, the fixed end of the mooring assembly being disposed at the bottom of the base 1, and the movable end of the mooring assembly being used to connect to the seabed.

[0044] Thus, by providing a mooring assembly, the rectangular aquaculture cage can be moored to the seabed when it reaches the predetermined sea area, thereby allowing the rectangular aquaculture cage to float only within the predetermined sea area and preventing it from drifting away from the predetermined sea area. The fixed end of the mooring assembly can be configured as a tensioning mechanism, and the movable end of the mooring assembly can be configured as an anchor cable. After the anchor cable is fixed to the seabed, the tensioning mechanism is used to tension the anchor cable, thereby mooring the rectangular aquaculture cage within the predetermined sea area and preventing it from drifting away from the predetermined sea area.

[0045] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A low freeboard rectangular aquaculture cage, characterized in that: include: A base, wherein the middle portion of the base is hollowed out and provided with a first net; A frame structure, the frame structure comprising a plurality of first support columns and a plurality of connecting assemblies, wherein the plurality of first support columns are arranged on the base, and the plurality of connecting assemblies are arranged between two adjacent first support columns; a second net is provided on the outer side of the frame structure; a plurality of second support columns, wherein the second support columns are arranged on the base, and the height of the second support columns is greater than that of the first support columns; The superstructure structure is arranged on the top of the second supporting column; a walkway and an operation room are arranged inside the superstructure structure, and breeding equipment is arranged inside the operation room.

2. The low freeboard rectangular aquaculture cage according to claim 1, characterized in that: The superstructure structure is configured as a box beam, the exterior of the box beam is a closed structure, the interior of the box beam is a hollow structure, and the walkway and the operating room are provided inside the box beam.

3. The low freeboard rectangular aquaculture cage according to claim 2, characterized in that: The second supporting column is provided with a stepped staircase, the top of the stepped staircase extends to the bottom of the box beam, and the bottom of the stepped staircase extends to the connecting assembly.

4. The low freeboard rectangular aquaculture cage according to claim 1, characterized in that: The plurality of first support columns are symmetrically arranged about the vertical line of the base; The second support column is arranged in the middle of the base, and the center of gravity of the superstructure structure coincides with the vertical line of the base.

5. The low freeboard rectangular aquaculture cage according to claim 1, characterized in that: The base includes two trusses and a plurality of first connecting rods. The two trusses extend in a first direction, and a plurality of first connecting rods are provided between the two trusses. The first net is provided in an area enclosed by the two trusses and the plurality of first connecting rods. Multiple first support columns are respectively arranged at intervals along the first direction on the two trusses; the connecting assembly includes a transverse connecting rod and a longitudinal connecting rod, the transverse connecting rod is arranged between two adjacent first support columns on the same truss, and the longitudinal connecting rod is arranged between two adjacent first support columns on different trusses.

6. The low freeboard rectangular aquaculture cage according to claim 5, characterized in that: A triangular connecting plate is provided between adjacent transverse connecting rods and longitudinal connecting rods.

7. The low freeboard rectangular aquaculture cage according to claim 5, characterized in that: The rectangular breeding cage further includes a plurality of second connecting rods; The first end of the second connecting rod is connected to the first support column, the second end of the second connecting rod is connected to the longitudinal connecting rod, and a triangular support structure is formed between the second connecting rod, the longitudinal connecting rod and the first support column; or, the first end of the second connecting rod is connected to the first support column, the second end of the second connecting rod is connected to the first connecting rod, and a triangular support structure is formed between the second connecting rod, the first connecting rod and the first support column.

8. The low freeboard rectangular aquaculture cage according to claim 7, characterized in that: A third net is provided on the triangular supporting structure.

9. The low freeboard rectangular aquaculture cage according to claim 5, characterized in that: The rectangular aquaculture cage further comprises a plurality of third connecting rods; The first end of the third connecting rod is connected to the first support column, and the second end of the third connecting rod is connected to the transverse connecting rod. The third connecting rod, the transverse connecting rod and the first support column form a triangular support structure.

10. The low freeboard rectangular aquaculture cage according to any one of claims 1 to 9, characterized in that: The rectangular aquaculture cage further comprises a mooring component, the fixed end of the mooring component is arranged at the bottom of the base, and the movable end of the mooring component is used for connecting to the seabed.

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