Reinforced deepwater aquaculture net cage

By designing a reinforced deep-sea aquaculture cage, the lower floating frame is fixed in the water using anchors and anchor cables, preventing the waves from pulling on the upper floating frame. This solves the problem of the floating frame moving up and down due to waves in existing technologies, improves the stability and space utilization of the cage, and extends its service life.

CN224265480UActive Publication Date: 2026-05-22GUANGDONG DALINYANG MARINE BIOLOGICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG DALINYANG MARINE BIOLOGICAL CO LTD
Filing Date
2025-06-04
Publication Date
2026-05-22

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Abstract

The utility model discloses a reinforced deepwater culture net cage, including upper net cage, lower net cage, upper floating frame, lower floating frame and anchor, the top of upper net cage is connected with the upper floating frame, the bottom of upper net cage is connected with the lower floating frame, the lower part of the lower floating frame is connected with the lower net cage, the lower floating frame is connected with the anchor through anchor cable, and the anchor is connected with the anchor through anchor cable. The upper floating frame floats on the water surface, the lower floating frame is immersed in water under pulling of the anchor cable, and the height of the upper net cage is larger than the distance between the lower floating frame and the upper floating frame. The utility model aims to provide a reinforced deepwater aquaculture net cage which can prevent sea waves from pulling the aquaculture net cage in a reciprocating manner and improve the stability of the aquaculture net cage in a deepwater area.
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Description

Technical Field

[0001] This utility model relates to the field of aquaculture cage technology, and in particular to a reinforced deep-water aquaculture cage. Background Technology

[0002] Aquaculture cages are facilities used for aquaculture, typically consisting of a frame, netting, and mooring systems. They are characterized by high yield, low cost, and ease of management. Deep-sea aquaculture cages need strong resistance to wind, waves, and ocean currents. Current deep-sea aquaculture cages float on the water surface; however, during the aquaculture process, ocean waves impact the floating frame, causing it to move up and down. This repetitive up-and-down movement accelerates fatigue damage to the deep-sea aquaculture cages, leading to a shortened lifespan. Utility Model Content

[0003] In view of the above-mentioned prior art, the present invention provides a reinforced deep-water aquaculture cage that can prevent the reciprocating pulling of the aquaculture cage by the sea waves and improve the stability of the aquaculture cage in deep water areas.

[0004] To achieve the above objectives, the technical solution of this utility model embodiment is implemented as follows:

[0005] A reinforced deep-sea aquaculture cage includes a net cage, a lower net cage, an upper floating frame, a lower floating frame, and a fixed anchor. The top of the net cage is connected to the upper floating frame, the bottom of the net cage is connected to the lower floating frame, and the lower net cage is connected below the lower floating frame. The lower floating frame is connected to the fixed anchor via an anchor cable. The upper floating frame floats on the water surface, and the lower floating frame is submerged in water under the pull of the anchor cable. The height of the net cage is greater than the distance between the lower floating frame and the upper floating frame.

[0006] Furthermore, the bottom of the upper floating frame is provided with several vertical rods, the side of the net box is provided with several hanging rings, the vertical rods pass through the hanging rings, and the lower floating frame is provided with several first through holes, the vertical rods pass through the first through holes.

[0007] Furthermore, the side of the net box is provided with a plurality of first annular support rings, and the first annular support rings are provided with the hanging rings.

[0008] Furthermore, the bottom of the net box is provided with a second through hole, the second through hole is connected to an inner net cylinder, and the upper part of the inner net cylinder is connected to the upper floating frame.

[0009] Furthermore, an inner mesh frame is provided in the middle of the floating frame, the inner mesh cylinder is connected to the inner mesh frame, and the inner mesh frame is connected to the floating frame through a horizontal bar.

[0010] Furthermore, the lower mesh box is provided with several second annular support rings on its side.

[0011] Furthermore, the lower mesh box is provided with connecting rods around its perimeter, and the connecting rods are connected to the second annular support ring.

[0012] Furthermore, the inner mesh cylinder is a conical mesh cylinder, and the diameter of the bottom of the inner mesh cylinder is larger than that of the top, and a counterweight ring is provided on the side of the inner mesh cylinder.

[0013] Furthermore, the diameter of the upper floating frame is larger than the diameter of the lower floating frame, the diameter of the net box is larger than the diameter of the lower net box, and the first through hole is located on the outside of the lower net box.

[0014] The beneficial effects of this invention are as follows: Under natural conditions, the side nets of the net cage are in a relaxed state. When waves impact the upper floating frame, the up-and-down movement of the upper buoy will not pull the lower floating frame, meaning the net cage will not be subjected to tension at either end, thus protecting it. Because the lower floating frame is not pulled, it remains stable underwater, protecting the lower net cage and making the overall structure of the aquaculture net cage in deep water areas more stable. The fixed anchor connects to the lower floating frame via anchor cables, confining it in the water, and the lower net cage is also confined to a deeper underwater location. Furthermore, the net cage and lower net cage of this invention can be used to cultivate different aquatic products separately, improving space utilization. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a reinforced deep-sea aquaculture cage according to Embodiment 1 of this application;

[0016] Figure 2 This is a schematic diagram of the network box and floating frame in Embodiment 1 of this application;

[0017] Figure 3 This is a schematic diagram of the structure of the inner mesh cylinder, counterweight ring, and inner mesh frame in Embodiment 2 of this application;

[0018] Figure 4 This is a schematic diagram of the lower mesh box and the lower floating frame in Embodiment 2 of this application;

[0019] Explanation of icon numbers:

[0020] 1. Net box; 2. Lower net box; 3. Upper floating frame; 4. Lower floating frame; 5. Fixed anchor; 6. Vertical rod; 7. Hanging ring; 8. First through hole; 9. First annular support ring; 10. Second through hole; 11. Inner net cylinder; 12. Inner net frame; 13. Horizontal rod; 14. Second annular support ring; 15. Connecting rod; 16. Counterweight ring. Detailed Implementation

[0021] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in this specification of this utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. In the following description, the expression "some embodiments" refers to a subset of all possible embodiments; however, it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0022] It should also be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0023] Example 1

[0024] Please refer to the attached document. Figures 1-2 This application provides a reinforced deep-sea aquaculture cage, including a net cage 1, a lower net cage 2, an upper floating frame 3, a lower floating frame 4, and a fixed anchor 5. The top of the net cage 1 is connected to the upper floating frame 3, the bottom of the net cage 1 is connected to the lower floating frame 4, and the lower floating frame 4 is connected to the lower net cage 2. The lower floating frame 4 is connected to the fixed anchor 5 via an anchor cable. The upper floating frame 3 floats on the water surface, and the lower floating frame 4 is submerged in water under the pull of the anchor cable. The height of the net cage 1 is greater than the distance between the lower floating frame 4 and the upper floating frame 3. In its natural state, the side nets of the net cage 1 are in a loose state. When waves on the water surface impact the upper floating frame 3, the up-and-down movement of the upper floating block will not pull the lower floating frame 4, that is, the net cage 1 will not be subjected to tension at both ends, thus protecting the net cage 1. Since the lower floating frame 4 is not pulled, it can remain stable underwater, protecting the lower net cage 2 and making the overall structure of the aquaculture cage more stable. The fixed anchor 5 is connected to the lower floating frame 4 via anchor cables, confining the lower floating frame 4 in the water, and the lower net cage 2 is also confined to a deep underwater location. The net cage 1 and lower net cage 2 of this invention can also cultivate different aquatic products separately, improving space utilization.

[0025] Specifically, the bottom of the upper floating frame 3 is provided with several vertical rods 6, and the side of the net box 1 is provided with several hanging rings 7 through which the vertical rods 6 pass. The lower floating frame 4 is provided with several first through holes 8 through which the vertical rods 6 pass. During the up-and-down movement of the upper floating frame 3, the vertical rods 6 are also driven to move up and down, and the vertical rods 6 move up and down through the first through holes 8. The vertical rods 6 surround the net box 1 from all sides, providing support for the net box 1 and improving its impact resistance.

[0026] Specifically, the side of the net cage 1 is provided with several first annular support rings 9, and the first annular support rings 9 are provided with the hanging rings 7. The net cage 1 is supported by the first annular support rings 9, which allows the net cage 1 to maintain its shape in the water and improves its impact resistance.

[0027] Specifically, the bottom of the net cage 1 is provided with a second through hole 10, which is connected to an inner net cylinder 11. The upper part of the inner net cylinder 11 is connected to the upper floating frame 3. An upper aquaculture zone is formed between the inner net cylinder 11 and the net cage 1, where aquatic products can be cultured. The upper aquaculture zone is separated from the lower net cage 2, and feed is fed to the lower net cage 2 through the inner net cylinder 11.

[0028] Specifically, the upper floating frame 3 has an inner mesh frame 12 in the middle, and the inner mesh cylinder 11 is connected to the inner mesh frame 12. The inner mesh frame 12 is connected to the upper floating frame 3 through a horizontal rod 13. The inner mesh frame 12 is fixed in the middle by the horizontal rod 13. After the inner mesh frame 12 is connected to the inner mesh cylinder 11, it can be ensured that the upper part of the inner mesh cylinder 11 remains open.

[0029] Example 2

[0030] Please refer to the attached document. Figures 3-4 The difference between this embodiment and Embodiment 1 is that the lower net cage 2 is provided with several second annular support rings 14 on its side. The second annular support rings 14 can support the lower net cage 2, allowing it to maintain its shape in the water and improving its impact resistance.

[0031] Specifically, the lower net box 2 is provided with connecting rods 15 around its perimeter, and the connecting rods 15 are connected to the second annular support ring 14. The connecting rods 15 and the second annular support ring 14 form a support frame, which improves the lower net box 2's impact resistance and ensures its stability under water flow.

[0032] Specifically, the inner mesh cylinder 11 is a conical mesh cylinder, and the diameter of the bottom of the inner mesh cylinder 11 is larger than that of the top. The inner mesh cylinder 11 is provided with a counterweight ring 16 on its side. When the upper floating frame 3 moves downward, under the gravity of the counterweight ring 16, the inner mesh cylinder 11 folds downward and is stored. The folded inner mesh cylinder 11 passes through the second through hole 10, ensuring that the internal channel of the inner mesh cylinder 11 remains open.

[0033] Specifically, the diameter of the upper floating frame 3 is larger than the diameter of the lower floating frame 4, the diameter of the net box 1 is larger than the diameter of the lower net box 2, and the first through hole 8 is located on the outside of the lower net box 2. When the upper floating block drives the vertical rod 6 to move up and down, the vertical rod 6 moves up and down on the outer side of the lower net box 2 to prevent the movement of the vertical rod 6 from interfering with the movement of the lower net box 2, and also to prevent the vertical rod 6 from damaging the aquatic products inside the lower net box 2.

[0034] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. The protection scope of this utility model should be determined by the protection scope of the stated claims.

Claims

1. A reinforced deep-sea aquaculture cage, characterized in that, The system includes a net cage, a lower net cage, an upper floating frame, a lower floating frame, and a fixed anchor. The top of the net cage is connected to the upper floating frame, the bottom of the net cage is connected to the lower floating frame, and the lower floating frame is connected to the lower net cage. The lower floating frame is connected to the fixed anchor via an anchor cable. The upper floating frame floats on the water surface, and the lower floating frame is submerged in the water under the pull of the anchor cable. The height of the net cage is greater than the distance between the lower floating frame and the upper floating frame.

2. The reinforced deep-sea aquaculture cage according to claim 1, characterized in that, The bottom of the upper floating frame is provided with several vertical rods, and the side of the net box is provided with several hanging rings. The vertical rods pass through the hanging rings, and the lower floating frame is provided with several first through holes. The vertical rods pass through the first through holes.

3. A reinforced deep-sea aquaculture cage according to claim 2, characterized in that, The side of the network box is provided with several first annular support rings, and the first annular support rings are provided with the hanging rings.

4. The reinforced deep-sea aquaculture cage according to claim 1, characterized in that, The bottom of the net box is provided with a second through hole, and the second through hole is connected to an inner net cylinder. The upper part of the inner net cylinder is connected to the upper floating frame.

5. A reinforced deep-sea aquaculture cage according to claim 4, characterized in that, The upper floating frame is provided with an inner net frame in the middle, the inner net cylinder is connected to the inner net frame, and the inner net frame is connected to the upper floating frame through a horizontal bar.

6. A reinforced deep-sea aquaculture cage according to claim 1, characterized in that, The lower mesh box is provided with several second annular support rings on its side.

7. A reinforced deep-sea aquaculture cage according to claim 6, characterized in that, The lower mesh box is provided with connecting rods around its perimeter, and the connecting rods are connected to the second annular support ring.

8. A reinforced deep-sea aquaculture cage according to claim 4, characterized in that, The inner mesh cylinder is a conical mesh cylinder, and the diameter of the bottom of the inner mesh cylinder is larger than that of the top. The side of the inner mesh cylinder is provided with a counterweight ring.

9. A reinforced deep-sea aquaculture cage according to claim 2, characterized in that, The diameter of the upper floating frame is larger than the diameter of the lower floating frame, the diameter of the net box is larger than the diameter of the lower net box, and the first through hole is located on the outside of the lower net box.