Rope net mounting device for aquaculture net cage

By using a rope net installation device with a raised design in deep-sea aquaculture cages, the netting is separated from the rigid truss, solving the problems of netting wear and fish escape, achieving wear resistance and extended lifespan of the netting, and reducing costs.

CN224165476UActive Publication Date: 2026-04-28SHANDONG LAIWEI NEW MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG LAIWEI NEW MATERIALS CO LTD
Filing Date
2025-03-31
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

In deep-sea aquaculture equipment, the binding design of flexible netting and rigid trusses cannot effectively disperse dynamic load stress, resulting in severe netting wear and the risk of fish escaping. Furthermore, the existing connection method cannot effectively avoid wear caused by wave impact.

Method used

The rope net installation device with a high-altitude design separates the netting from the rigid truss. The netting structure is formed by the ropes and support frame, which avoids direct contact between the netting and the metal connectors and rigid truss, increasing wear resistance and reducing the risk of wear.

Benefits of technology

It effectively extends the service life of the netting and the overall net cage, reduces costs, reduces the risk of fish escaping, is easy to install, and is suitable for large-scale promotion and application.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a rope net mounting device for a culture net cage, which relates to the field of deep sea culture equipment, and is characterized in that a support frame body is arranged in parallel on the outer side of a rigid truss, the shape of the support frame body is matched with that of the rigid truss, and a main body of a netting is connected with longitudinal and transverse steel ropes in the rigid truss in a wrapping manner; the peripheral part is anchored, coated and connected with the support frame body to form an inclined netting structure, so that the netting is fixedly connected with the rigid truss, and meanwhile, the metal connecting piece of the easy-to-wear netting and the rigid truss column body are wrapped in the netting and are not in contact with each other; the net cage has the advantages that the net cage is simple in structure, low in innovation cost, wide in application range and suitable for large-scale popularization and application, net abrasion and net mesh expansion risks caused by sea wave impact in a deep sea environment are reduced, the service lives of the net and the whole net cage are effectively prolonged, and the cost is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of deep-sea aquaculture equipment, specifically a rope and net installation device for aquaculture cages. Background Technology

[0002] In recent years, truss-type net cages have been widely used in deep-sea aquaculture equipment. The rigid support system, constructed with steel and composite materials, forms a stable three-dimensional structure that can withstand strong winds, waves, and ocean currents in the deep sea. The flexible netting material possesses high toughness and tear resistance, and, combined with elastic connections, mitigates the damage to the structure caused by water flow. The flexible netting and rigid truss require multi-point anchoring or dynamic positioning technology to enhance the stability of the net cages under complex sea conditions and reduce the risk of displacement.

[0003] In actual installation, the binding design of flexible netting and rigid trusses relies on rigid connections, which cannot effectively distribute dynamic load stress. Especially in the anchoring connection between rigid trusses and flexible netting in segmented net cage equipment, it is necessary to consider both the formation of a suitable aquaculture water body by the flexible netting and the prevention of wear and tear on the flexible netting and rigid trusses caused by wave impact, thereby reducing the risk of fish escaping and improving the service life of the net cage. Summary of the Invention

[0004] To address the aforementioned technical problems, this utility model provides a rope net installation device for aquaculture cages. The connection between the netting and the rigid truss is designed with an elevated position, preventing the netting from directly contacting the metal connectors and the rigid truss. This reduces the risk of netting wear, prevents fish from escaping, and extends the service life of the cage.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A rope net installation device for aquaculture cages, the aquaculture cage comprising a frame system and several rope nets, the frame system comprising several frame units consisting of rigid trusses of various specifications fixedly connected to each other, each frame unit connected to a rope net, the frame units being assembled to form an overall cage, the rope net consisting of several crisscrossing ropes and a net covering the ropes, the ends of the ropes being provided with metal shackles, and metal connectors being provided at equal intervals on the rigid trusses of each frame unit, the ends of the ropes being connected by metal shackles and metal connectors to achieve crisscrossing fixation within the rigid trusses, the net being fixed by corresponding stitching. The netting (22) is placed on the ropes to form a covering. The area of ​​the netting (22) in each frame unit is set to be slightly larger than the area of ​​the rigid truss (1). A support frame is set on the outside of the rigid truss, parallel to it and with a matching shape. The ropes are anchored on the support frame. The connecting ropes are anchored at the corresponding points with the ropes parallel to the metal connector on the rigid truss through the vertical ropes. The netting is laid out as a whole and covered and connected to the crisscrossing ropes. The excess part around it is laid diagonally upward on the support frame and covered and connected to the corresponding ropes, forming a tilted netting structure that passes over the metal connector and the rigid truss.

[0007] The inclined mesh structure is spliced ​​with multiple layers of wear-resistant mesh sheets.

[0008] The support frame is composed of several strip metal parts and wedge-shaped welded parts. The strip metal parts are fixed to the outside of the rigid truss by the wedge-shaped welded parts, and the installation direction is parallel to the overall laying direction of the mesh.

[0009] The wedge-shaped weldment is installed at intervals of 0.4-0.8m.

[0010] The design dimensions of the mesh are specifically designed based on the height of the support frame and the dimensions of the rigid truss to be installed.

[0011] This invention features a support frame that conforms to the shape of a rigid truss, positioned parallel to its outer side. The main body of the netting is wrapped and connected to the longitudinal and transverse ropes within the rigid truss, while the surrounding portion is anchored and wrapped to the support frame, forming an inclined netting structure. This achieves a fixed connection between the netting and the rigid truss, while simultaneously enclosing the easily worn metal connectors of the netting and the rigid truss columns within the netting without contact. This reduces the risk of wear and tear on the netting and mesh enlargement caused by wave impacts in deep-sea environments, effectively extending the service life of the netting and the entire net cage. It also reduces costs, minimizes the risk of fish escaping, is easy to install, has low innovation costs, a wide range of applications, and is suitable for large-scale promotion and application. Attached Figure Description

[0012] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a partial connection diagram of the present invention;

[0014] Figure 3 This is a schematic diagram of the side connection of this utility model. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0016] like Figure 1-3 As shown, this is a rope net installation device for aquaculture cages. The aquaculture cage includes a frame system and several rope nets. The frame system includes several frame units composed of rigid trusses 1 of various specifications that are fixedly connected to each other. Each frame unit is connected to a rope net 2. Several frame units are combined to form an overall cage. The rope net 2 consists of several crisscrossing ropes 21 and a net covering 22. The two ends of the ropes 21 are provided with metal buckles 23. Metal connectors 11 are evenly spaced on the rigid truss 1 of each frame unit. The two ends of the ropes 21 are connected by metal buckles 23 and metal connectors 11 to achieve crisscrossing fixation within the rigid truss 1. The net 22 is secured by stitching. The mesh 22 is fixedly set on the rope 21 to form a covering. The area of ​​the mesh 22 in each frame unit is set to be slightly larger than the area of ​​the rigid truss 1. A support frame 3 is set on the outside of the rigid truss 1, parallel to it and with a matching shape. The rope 24 is anchored to the support frame 3. The connecting rope 24 and the rope 21 on the rigid truss 1 that is parallel to it at the closest point to the metal connector 11 are anchored at the corresponding points by the rope in the vertical direction. The mesh 22 is laid out as a whole and covered and connected to the crisscrossing rope 21. The excess part around it is laid diagonally upward on the support frame 3 and covered and connected to the corresponding rope, forming an inclined mesh structure that passes over the metal connector 11 and the rigid truss 1.

[0017] As a preferred embodiment, multiple layers of wear-resistant mesh 4 are spliced ​​onto the inclined mesh structure. The specific number of layers of wear-resistant mesh 4 can be determined according to the specific conditions of the aquaculture water. The design of the wear-resistant mesh 4 can increase the wear resistance of the mesh 22 and reduce the risk of damage to the mesh 22.

[0018] As a preferred embodiment, the support frame 3 is composed of several strip-shaped metal parts and wedge-shaped welded parts. The strip-shaped metal parts are fixed to the outside of the rigid truss 1 by the wedge-shaped welded parts, and the installation direction is parallel to the overall laying direction of the mesh 11. In this embodiment, the strip-shaped metal parts are made of strip-shaped round steel.

[0019] As a preferred method, the wedge-shaped weldment is set at intervals of 0.4-0.8m, which can ensure the strength of the weldment and reduce the welding cost. The height of the wedge-shaped weldment is preferably less than one mesh size.

[0020] As a preferred approach, the design dimensions of the mesh 22 are specifically designed based on the height dimensions of the designed support frame 3 and the dimensions of the rigid truss 1 that is specifically installed.

[0021] In this invention, the netting 22 is actually connected to the support frame 3 on all four sides. The support frame 3 is arranged parallel to the rigid truss 1. The main body of the netting 22 is still anchored and wrapped around the crisscrossing ropes 21 inside the rigid truss 1, but its perimeter forms an inclined surface. This inclined surface extends beyond the metal connectors and the main body of the rigid truss 1, and then wraps around them. It is actually a raised design, which avoids direct contact between the netting 22 and the metal connectors and the rigid truss 1, reduces the risk of damage to the netting 22 and the expansion of the mesh, improves the lifespan of the netting, and reduces the risk of the farmed fish escaping.

[0022] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A rope net installation device for aquaculture cages, the aquaculture cage comprising a frame system and several rope nets, the frame system comprising several frame units consisting of rigid trusses (1) of various specifications fixedly connected to each other, each frame unit being connected to a rope net (2), the several frame units being combined to form an overall cage, the rope net (2) comprising several crisscrossing ropes (21) and a net covering the ropes (21), the two ends of the ropes (21) being provided with metal buckles (23), metal connectors (11) being provided at equal intervals on the rigid trusses (1) of each frame unit, the two ends of the ropes (21) being connected by metal buckles (23) and metal connectors (11) to achieve crisscrossing fixation within the rigid trusses (1), the net covering (22) being correspondingly fixed to the ropes (21) by stitching to form a covering, characterized in that, The area of ​​the mesh (22) in each frame unit is set to be larger than the area of ​​the rigid truss (1). A support frame (3) is set on the outside of the rigid truss (1) and is parallel to it and has a matching shape. The support frame (3) is anchored to the connecting rope (24). The connecting rope (24) and the rope (21) on the rigid truss (1) that is parallel to it at the point closest to the metal connector (11) are anchored at the corresponding point by the vertical rope. The mesh (22) is laid out as a whole and covered and connected to the crisscrossing rope (21). The excess part around it is laid diagonally upward on the support frame (3) and covered and connected to the corresponding rope, forming a mesh structure that is inclined and passes over the metal connector (11) and the rigid truss (1).

2. The rope net installation device for aquaculture cages according to claim 1, characterized in that, Multiple layers of wear-resistant mesh (4) are spliced ​​on the inclined mesh structure.

3. The rope net installation device for aquaculture cages according to claim 1, characterized in that, The support frame (3) is composed of several strip metal parts and wedge-shaped welded parts. The strip metal parts are fixed to the outside of the rigid truss (1) by the wedge-shaped welded parts, and the installation direction is parallel to the overall laying direction of the mesh (22).

4. A rope net installation device for aquaculture cages according to claim 3, characterized in that, The wedge-shaped weldment is installed at intervals of 0.4-0.8m.

5. A rope net installation device for aquaculture cages according to claim 1, characterized in that, The design dimensions of the mesh (22) are specifically designed based on the height dimensions of the designed support frame (3) and the dimensions of the rigid truss (1) to be installed.