A floating pipe structure of a deep sea culture net cage

By installing reinforcing components between the outer and inner floating pipes of the deep-sea aquaculture cage and using elastic and limiting modules to restrict the turning range, the problem of low wind and wave resistance of the floating pipe structure is solved, and the service life is improved.

CN224460882UActive Publication Date: 2026-07-07LINGSHUI AGRI INVESTMENT MARINE FISHERIES DEV CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LINGSHUI AGRI INVESTMENT MARINE FISHERIES DEV CO LTD
Filing Date
2025-07-04
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The existing floating pipe structure of deep-sea aquaculture cages has low resistance to wind and waves, resulting in a short service life.

Method used

A reinforcing assembly, including an upper connecting rod, a lower connecting rod, and an elastic module, is installed between the outer and inner float tubes. The elastic module provides a reverse elastic force to limit the overturning range, and a limit module is added to protect the elastic module and improve its service life.

Benefits of technology

It improves the strength and toughness between the outer and inner floating tubes, reduces the risk of damage to the outer floating tube in wind and waves, and extends its service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of floating pipe structures of deep-sea aquaculture net cage, including outer floating pipe and inner floating pipe, several fixed racks are equipped between the outer floating pipe and inner floating pipe, handrail is equipped on the inner floating pipe, several reinforcing components are equipped between the handrail and the outer floating pipe, the reinforcing component is connected with the fixed rack, the reinforcing component includes upper connecting rod and lower connecting rod, the upper connecting rod is hinged with the lower connecting rod, the upper connecting rod is connected with the handrail, the lower connecting rod is hinged with the fixed rack, elastic module is equipped between the upper connecting rod and the lower connecting rod, limit module is equipped on the elastic module. The utility model solves the problem that the wind and wave resistance of the floating pipe structure of the prior art deep-sea aquaculture net cage is not high, resulting in a low service life.
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Description

Technical Field

[0001] This utility model relates to the field of aquaculture cage technology, and in particular to a floating tube structure for a deep-sea aquaculture cage. Background Technology

[0002] The floating frame of a net cage mainly consists of handrail pipes, several I-beam bases, outer floating pipes, inner floating pipes, several uprights, and several tees connecting the handrail pipes and uprights. The floating pipes and handrail pipes on the net cage floating frame are made of polyethylene plastic pipes, formed by hot-melt welding of several plastic pipes into a ring. When the net cage is hit by a tropical storm, severe tropical storm, or typhoon, the floating frame will toss and twist in the strong winds and waves, and the floating pipes will be subjected to various stresses. In particular, the floating pipes at the anchor ropes binding the net cage are extremely prone to damage and breakage under the impact load of the up-and-down movement, causing the net cage to lose buoyancy and sink. In recent years, a significant portion of the losses caused by typhoons to aquaculture net cages in my country has been due to the breakage of floating pipes at the anchor ropes binding the net cages. The existing technology disclosed in Chinese Patent Publication No. CN206238106U is a sleeve fixing frame for deep-water wind and wave resistant aquaculture cages. It includes a cage float frame composed of a handrail tube, an I-beam base, an outer float tube, an inner float tube, a column, and a tee. The outer float tube and the inner float tube of the cage float frame are both fitted with sleeves, and the sleeves on the outer float tube and the inner float tube are corresponding. It also includes a sleeve fixing frame, which can prevent the sleeve from slipping and losing its function, ensuring the ability of the float tube to resist impact loads and ensuring the safety of the aquaculture cage.

[0003] In practical applications, the aforementioned existing technology involves a rigid connection between the fixed frame and both the outer and inner floating pipes. When the outer floating pipe is subjected to the fluctuations of wind and waves, it will generate a turning force compared to the inner floating pipe. After the fixed frame is subjected to this impact fatigue for a long time, it loses its corresponding stability and thus loses its connection function of fixing the outer and inner floating pipes. Its resistance to wind and waves is not high. Utility Model Content

[0004] The purpose of this invention is to solve the problem of short service life caused by the low wind and wave resistance of the floating pipe structure of deep-sea aquaculture cages in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A floating tube structure for a deep-sea aquaculture cage includes an outer floating tube and an inner floating tube. Several fixing frames are provided between the outer and inner floating tubes. A handrail is provided on the inner floating tube. Several reinforcing components are provided between the handrail and the outer floating tube. The reinforcing components are connected to the fixing frames. Each reinforcing component includes an upper connecting rod and a lower connecting rod, which are hinged together. The upper connecting rod is connected to the handrail, and the lower connecting rod is hinged to the fixing frames. An elastic module is provided between the upper and lower connecting rods, and a limiting module is provided on the elastic module.

[0007] Preferably, the limiting module includes an upper mounting plate connected to the upper connecting rod, the upper mounting plate having a sliding groove, the lower connecting rod having a lower mounting plate, the lower mounting plate having a connecting shaft, and the connecting shaft being slidably connected to the sliding groove.

[0008] Preferably, the elastic module is a torsion spring, which is located between the upper connecting rod and the lower connecting rod, and the two ends of the torsion spring abut against the upper connecting rod and the lower connecting rod, respectively.

[0009] Preferably, a connecting assembly is further provided between the lower connecting rod and the fixed frame. The connecting assembly includes a base plate and a connecting plate. The base plate and the connecting plate clamp the fixed frame. A hinge frame is provided on the base plate. The hinge frame is hinged to the lower connecting rod and is snapped into place with the base plate.

[0010] Preferably, a clamp is provided between the upper connecting rod and the handrail frame, a bolt is provided on the clamp, the bolt passes through the clamp, and a nut is provided on the bolt, the nut being threadedly connected to the bolt.

[0011] Preferably, the lower connecting rod is provided with a lower protective plate, which is snapped into the lower connecting rod. An upper protective plate is provided on the lower protective plate, which is slidably connected to the lower protective plate and is hinged to the upper connecting rod.

[0012] The beneficial effects proposed by this utility model are as follows:

[0013] When the outer float tube is subjected to wave impact and deformation, the fixing frame flips upwards around the inner float tube. During this flipping process, the lower connecting rod is driven to flip relative to the upper connecting rod. During this relative flipping between the upper and lower connecting rods, the lower and upper connecting rods compress the elastic module. The elastic module drives the lower and upper connecting rods to return to their original positions. Simultaneously, the elastic module provides a reverse elastic force to limit the flipping range of the lower connecting rod, reducing the risk of damage to the outer float tube due to excessive flipping. Furthermore, to improve the service life of the elastic module, a limiting module is added. The driving stroke of the limiting module is less than that of the elastic module. That is, when the lower connecting rod flips to contact the limiting module, the compression degree of the elastic module has not reached its maximum stroke, effectively reducing wear and tear caused by the elastic module working under maximum load and effectively improving its service life. In summary, the reinforcing components can improve the strength between the outer float tube and the inner float tube, while also reducing the impact resistance of the outer float tube, improving its toughness, and extending its service life. Attached Figure Description

[0014] Figure 1 This utility model proposes a three-dimensional floating tube structure for a deep-sea aquaculture cage. Figure 1 ;

[0015] Figure 2 This utility model proposes a three-dimensional floating tube structure for a deep-sea aquaculture cage. Figure 2 ;

[0016] Figure 3 A is a partially enlarged view of the floating tube structure of a deep-sea aquaculture cage proposed in this utility model;

[0017] Figure 4 This is a perspective view of a reinforcing component of the floating tube structure of a deep-sea aquaculture cage proposed in this utility model;

[0018] Figure 5 This is a partially enlarged view (B) of the reinforcing component of the floating tube structure of a deep-sea aquaculture cage proposed in this utility model;

[0019] Figure 6 This invention provides a schematic diagram showing the connection between the upper and lower protective plates of the floating tube structure of a deep-sea aquaculture cage. Figure 1 ;

[0020] Figure 7 This invention provides a schematic diagram showing the connection between the upper and lower protective plates of the floating tube structure of a deep-sea aquaculture cage. Figure 2 ;

[0021] Figure 8 This invention provides a schematic diagram showing the connection between the upper and lower protective plates of the floating tube structure of a deep-sea aquaculture cage. Figure 3 ;

[0022] Figure 9 This is an exploded view of the upper and lower protective plates of the floating tube structure of a deep-sea aquaculture cage proposed in this utility model.

[0023] In the diagram: 1. Outer float tube; 2. Inner float tube; 3. Fixing frame; 4. Handrail frame; 5. Upper connecting rod; 6. Lower connecting rod; 7. Upper mounting plate; 8. Lower mounting plate; 9. Slide groove; 10. Connecting shaft; 11. Torsion spring; 12. Base plate; 13. Connecting plate; 14. Hinge frame; 15. Clamp; 16. Bolt; 17. Nut; 18. Lower protective plate; 19. Upper protective plate; 20. Slider; 21. Slide rail. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figures 1 to 8A floating tube structure for a deep-sea aquaculture cage includes an outer floating tube 1 and an inner floating tube 2. Several fixing frames 3 are provided between the outer floating tube 1 and the inner floating tube 2. A handrail frame 4 is provided on the inner floating tube 2. Several reinforcing components are provided between the handrail frame 4 and the outer floating tube 1. The reinforcing components are connected to the fixing frames 3. Each reinforcing component includes an upper connecting rod 5 and a lower connecting rod 6. The upper connecting rod 5 and the lower connecting rod 6 are hinged together. The upper connecting rod 5 is connected to the handrail frame 4, and the lower connecting rod 6 is hinged to the fixing frames 3. An elastic module is provided between the upper connecting rod 5 and the lower connecting rod 6, and a limiting module is provided on the elastic module. Specifically, when the outer float tube 1 is subjected to wave impact and deformation, and the fixing frame 3 flips upward around the inner float tube 2, the fixing frame 3 drives the lower connecting rod 6 to flip relative to the upper connecting rod 5 during this flipping process. During this relative flipping between the upper connecting rod 5 and the lower connecting rod 6, the lower connecting rod 6 and the upper connecting rod 5 compress the elastic module. The elastic module is used to drive the lower connecting rod 6 and the upper connecting rod 5 to reset. Simultaneously, the elastic module provides a reverse elastic force to limit the flipping range of the lower connecting rod 6, reducing the risk of damage to the outer float tube 1 due to excessive flipping. Furthermore, to improve the service life of the elastic module, a limiting module is added to the elastic module. The driving stroke of the limiting module is less than the driving stroke of the elastic module. That is, when the lower connecting rod 6 flips to contact the limiting module, the compression degree of the elastic module has not reached its maximum stroke value, effectively reducing wear and tear caused by the elastic module working under maximum load and effectively improving the service life of the elastic module. In summary, the strengthening components can improve the strength between the outer float tube 1 and the inner float tube 2, while also reducing the impact on the outer float tube 1, improving its toughness, and extending its service life.

[0026] Furthermore, the reinforcing component can be used as a connecting part between the handrail 4 and the inner floating tube 2, further improving the service life of the outer floating tube 1.

[0027] Specifically, the limiting module includes an upper mounting plate 7 connected to the upper connecting rod 5. The upper mounting plate 7 has a sliding groove 9, and the lower connecting rod 6 has a lower mounting plate 8. The lower mounting plate 8 has a connecting shaft 10, which is slidably connected to the sliding groove 9. When the lower connecting rod 6 flips upward, the lower mounting plate 8 drives the connecting shaft 10 to slide within the sliding groove 9. The distance the connecting shaft 10 moves within the sliding groove 9 is limited by the size of the sliding groove 9. This design allows the size of the sliding groove 9 to determine the range of rotation of the lower connecting rod 6, thus limiting the rotation of the lower connecting rod 6.

[0028] Specifically, the elastic module is a torsion spring 11, which is located between the upper connecting rod 5 and the lower connecting rod 6. The two ends of the torsion spring 11 abut against the upper connecting rod 5 and the lower connecting rod 6, respectively. When the lower connecting rod 6 flips relative to the upper connecting rod 5, it forms an angle that gradually decreases. At this time, the lower connecting rod 6 and the upper connecting rod 5 gradually compress the torsion spring 11. During this process, the torsion spring 11 generates and stores rotational elastic force. When the lower connecting rod 6 loses its impact force and does not continue to flip, the torsion spring 11 releases the rotational elastic force, driving the lower connecting rod 6 to flip in the opposite direction, thus resetting the lower connecting rod 6.

[0029] Furthermore, the limiting module composed of the lower mounting plate 8, the upper mounting plate 7, and the connecting shaft 10 can be replaced with a pneumatic support rod. The cylinder of the pneumatic support rod is hinged to the upper connecting rod 5, and the piston rod of the pneumatic support rod is hinged to the lower connecting rod 6. The pneumatic support rod serves as a limiting device for the flipping of the lower connecting rod 6. By adjusting the air valve on the pneumatic support rod, the limiting range of the pneumatic support rod can be adjusted, thus making the flipping range of the lower connecting rod 6 relative to the upper connecting rod 5 adjustable. Simultaneously, the pneumatic support rod can also replace the torsion spring 11 as a component of the elastic module.

[0030] Specifically, a connecting assembly is provided between the lower connecting rod 6 and the fixing frame 3. The connecting assembly includes a base plate 12 and several connecting plates 13. The base plate 12 and the connecting plates 13 clamp the fixing frame 3. A hinge frame 14 is provided on the base plate 12, and the hinge frame 14 is hinged to the lower connecting rod 6 and snapped into place with the base plate 12. After the base plate 12 and the fixing frame 3 are snapped into place, the connecting plates 13 are passed through the fixing frame 3 and connected to the base plate 12. The base plate 12 and the connecting plates 13 are then snapped into place with the fixing frame 3. Finally, the hinge frame 14 is snapped into place with the base plate 12 and fixed to the base plate 12 with screws. This facilitates the installation of the reinforcing assembly and the fixing frame 3, while also improving the stability of the reinforcing assembly in harsh marine environments.

[0031] Specifically, a clamp 15 is provided between the upper connecting rod 5 and the handrail frame 4. A bolt 16 is provided on the clamp 15, passing through it. A nut 17 is provided on the bolt 16, and the nut 17 is threadedly connected to the bolt 16. Based on the above, the lower connecting rod 6 is conveniently installed and disassembled with the fixing frame 3 through the connecting assembly. The upper connecting rod 5 and the handrail frame 4 can be connected through the clamp 15. The clamp 15 is fixedly connected to the upper connecting rod 5 and fitted onto the handrail frame 4. Then, the bolt 16 passes through the clamp 15, and the nut 17 is fitted onto the bolt 16. By screwing the nut 17 through the threaded connection, the clamp 15 and the handrail frame 4 are gradually fixedly connected, achieving convenient installation of the upper connecting rod 5 and the handrail frame 4.

[0032] Specifically, the lower connecting rod 6 is provided with a lower protective plate 18, which is snapped into the lower connecting rod 6. An upper protective plate 19 is provided on the lower protective plate 18, which is slidably connected to the lower protective plate 18. The upper protective plate 19 is hinged to the upper connecting rod 5. The upper protective plate 19 and the lower protective plate 18 are used to protect the reinforcing assembly. At sea, it is easily impacted by wind and waves. The connection points of the various components in the reinforcing assembly, including the torsion spring 11 and the hinge point between the upper connecting rod 5 and the lower connecting rod 6, are subject to long-term erosion by sea winds and waves, which can easily cause corrosion and aging of the components, reducing the service life of the reinforcing assembly. The upper protective plate 19 and the lower protective plate 18 can block some of the wind and waves, reducing the degree of erosion on the reinforcing assembly and improving its service life. The upper protective plate 19 is provided with a slide rail 21, and the lower protective plate 18 is provided with a slider 20. The slider 20 is slidably connected to the slide rail 21. During the use of the reinforcing component, the lower connecting rod 6 and the upper connecting rod 5 are in a state of relative motion. When the lower connecting rod 6 flips relative to the upper connecting rod 5, it synchronously drives the lower protective plate 18 to move, thereby driving the upper protective plate 19 and the lower protective plate 18 to slide against each other, reducing the occurrence of interference and jamming, and at the same time realizing dynamic protection for the reinforcing component during operation.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A floating pipe structure for a deep-sea aquaculture cage, comprising an outer floating pipe and an inner floating pipe, characterized in that: Several fixing frames are provided between the outer float tube and the inner float tube. A handrail frame is provided on the inner float tube. Several reinforcing components are provided between the handrail frame and the outer float tube. The reinforcing components are connected to the fixing frames. Each reinforcing component includes an upper connecting rod and a lower connecting rod. The upper connecting rod and the lower connecting rod are hinged together. The upper connecting rod is connected to the handrail frame. The lower connecting rod is hinged to the fixing frames. An elastic module is provided between the upper connecting rod and the lower connecting rod. A limiting module is provided on the elastic module.

2. The floating tube structure of a deep-sea aquaculture cage according to claim 1, characterized in that: The limiting module includes an upper mounting plate connected to the upper connecting rod. The upper mounting plate is provided with a sliding groove. The lower connecting rod is provided with a lower mounting plate, and the lower mounting plate is provided with a connecting shaft. The connecting shaft is slidably connected to the sliding groove.

3. The floating tube structure of a deep-sea aquaculture cage according to claim 2, characterized in that: The elastic module is a torsion spring, which is located between the upper connecting rod and the lower connecting rod, with its two ends abutting against the upper connecting rod and the lower connecting rod, respectively.

4. The floating tube structure of a deep-sea aquaculture cage according to claim 3, characterized in that: A connecting assembly is also provided between the lower connecting rod and the fixed frame. The connecting assembly includes a base plate and a connecting plate. The base plate and the connecting plate clamp the fixed frame. A hinge frame is provided on the base plate. The hinge frame is hinged to the lower connecting rod and is snapped into place with the base plate.

5. The floating tube structure of a deep-sea aquaculture cage according to claim 4, characterized in that: A clamp is provided between the upper connecting rod and the handrail frame. A bolt is provided on the clamp, the bolt passes through the clamp, and a nut is provided on the bolt, the nut being threadedly connected to the bolt.

6. The floating tube structure of a deep-sea aquaculture cage according to claim 1, characterized in that: The lower connecting rod is provided with a lower protective plate, which is snapped into the lower connecting rod. The lower protective plate is provided with an upper protective plate, which is slidably connected to the lower protective plate and is hinged to the upper connecting rod.