A self-cleaning aquaculture cage

By designing a self-cleaning aquaculture cage, a drive motor and cam system are used to propel the net to swing. Combined with the impact of water flow and the friction of the rods, the problem of net fouling is solved, cleaning efficiency is improved, costs and labor intensity are reduced, and the stability of the aquaculture environment is ensured.

CN224936387UActive Publication Date: 2026-11-06NANJING JINJU FEED CO LTD
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Patent Information

Application Number
CN202522656394.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-15
Publication Date
2026-11-06
Estimated Expiration
2035-12-15

AI Technical Summary

Technical Problem

During long-term use, existing aquaculture cages are prone to the accumulation of dirt on the surface of the nets, leading to clogged mesh, reduced dissolved oxygen levels, and difficulty in the dispersal of harmful substances, which affects the aquaculture environment and the health of the organisms. Furthermore, existing cleaning methods are inefficient, costly, or pose safety risks.

Method used

A self-cleaning aquaculture cage is designed. A drive motor drives a transmission shaft and a cam to push a top block. The self-cleaning effect of the cage is achieved by the swinging of the net and the impact of water flow, combined with the friction and impact of the lower support rod, connecting rod and top rod.

Benefits of technology

The automated self-cleaning of the netting system has been achieved, which has improved cleaning efficiency, reduced labor intensity and costs, and ensured a healthy and stable aquaculture environment.

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Abstract

This utility model relates to an aquaculture cage, belonging to the technical field of aquaculture cages, specifically a self-cleaning aquaculture cage, including a top frame, a bottom frame at the bottom of the top frame, and a net covering the side walls of the top and bottom frames. A float is fixedly installed on the outer side wall of the top frame, and a cleaning component is installed inside the top frame. This utility model achieves this by having a top block abut against the side wall of a cam. When the fixing rod starts working, the transmission shaft rotates with the output end of the drive motor, and the cam pushes the top block. Since the connecting bottom rod is fixedly installed on the side wall of the bottom frame, and the net is fitted onto the side wall of the bottom frame, the bottom end of the net swings. Because the bottom end of the net is immersed in water, the swinging of the net causes water to impact the side wall of the net, washing away impurities attached to the side wall, thus achieving the self-cleaning effect of the net. This solves the problem of the difficulty in cleaning existing aquaculture cages.
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Description

Technical Field

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

[0002] Cage aquaculture, as an important model of modern aquaculture, is widely used due to its flexibility and efficiency. However, during long-term use, the surface of the cage netting (or mesh) is extremely prone to fouling by algae, shellfish, organic sludge, and other biological and abiotic pollutants. This widespread fouling problem can lead to a series of serious consequences: First, the fouling will severely clog the mesh of the cage, hindering the free exchange of water inside and outside the cage, resulting in a decrease in dissolved oxygen content inside the cage. Harmful substances such as ammonia nitrogen and hydrogen sulfide produced by the metabolism of aquatic organisms are difficult to diffuse and be discharged, thus deteriorating the aquaculture environment, affecting the growth rate and health of aquatic species, and even causing diseases and large-scale mortality.

[0003] To address the aforementioned issues, manual cleaning suffers from limited operating depth, high labor intensity, low cleaning efficiency, and high costs, while also posing significant safety risks associated with diving operations. While specialized net-washing vessels offer higher efficiency, their equipment investment and maintenance costs are exorbitant, placing a heavy economic burden on small and medium-sized aquaculture farmers. Furthermore, their use is limited by sea conditions and weather conditions, making timely and routine cleaning and maintenance difficult. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model proposes a self-cleaning aquaculture net cage. By attaching the top block to the side wall of the cam, when the fixing rod starts working, the transmission shaft rotates with the output end of the drive motor, and the cam pushes the top block. Since the connecting bottom rod is fixedly installed on the side wall of the bottom frame, and the net is fitted onto the side wall of the bottom frame, the bottom end of the net will swing. Because the bottom end of the net is immersed in water, the swinging of the net causes water to impact the side wall of the net, washing away impurities attached to the side wall of the net, thus achieving the self-cleaning effect of the net.

[0005] The technical solution to achieve the purpose of this utility model is as follows: a self-cleaning aquaculture cage, including a top frame, a bottom frame at the bottom of the top frame, a net covering the side walls of the top and bottom frames, a float fixedly installed on the outer side wall of the top frame, and a cleaning component inside the top frame, the cleaning component including: A fixing rod is fixedly installed on the inner side wall of the top frame, and a connecting bottom rod is fixedly installed on the inner side wall of the bottom frame. A drive motor is fixedly installed on the top wall of the fixed rod. A transmission shaft is fixedly installed at the output end of the drive motor. The bottom end of the transmission shaft extends downward into the interior of the fixed rod. A cam is fixedly installed at the bottom end of the side wall of the transmission shaft. A top block is fixedly installed on the top wall of the connecting bottom rod, and the top block fits against the side wall of the cam.

[0006] In some embodiments, the barrier net is internally provided with an impact component, which includes: The lower support rod consists of two rods, both of which are fixedly installed on the bottom wall of the fixed rod. The side walls of the two lower support rods are in contact with the inner side wall of the netting. A connecting rod is fixedly installed on the side wall of each lower support rod, and a top rod is provided on the side of the connecting rod away from the lower support rod.

[0007] In some embodiments, the top rod is C-shaped, and there is a certain gap between the top rod and the inner wall of the barrier.

[0008] In some embodiments, the impact component further includes: The spring plate is arc-shaped and is fixedly installed on the side wall near the connecting rod and the top rod.

[0009] In some embodiments, the impact component further includes: There are two reinforcing ropes, both of which are fixedly installed on the side wall of the fixed rod. The ends of the two reinforcing ropes that are far apart are respectively fixedly connected to the side walls of the two top rods.

[0010] Compared with the prior art, the significant advantages of this utility model are: Firstly, this utility model, by attaching the top block to the side wall of the cam, when the fixing rod starts working, the transmission shaft rotates with the output end of the drive motor, and the cam pushes the top block. Since the connecting bottom rod is fixedly installed on the side wall of the bottom frame, and the net is sleeved on the side wall of the bottom frame, the bottom end of the net will swing. Since the bottom end of the net is immersed in water, the swing of the net causes water to impact the side wall of the net, washing away the impurities attached to the side wall of the net, thus achieving the self-cleaning effect of the net; it solves the problem of the difficulty in cleaning existing aquaculture net cages.

[0011] Secondly, this utility model, by attaching the lower support rod, connecting rod, and top rod to the inner wall of the barrier net, when the bottom end of the barrier net swings, the inner wall of the barrier net will rub against the lower support rod and connecting rod, increasing the vibration of the barrier net and thus improving the self-cleaning effect of the barrier net. At the same time, when the bottom end of the barrier net swings, the side wall of the barrier net will hit the side wall of the top rod, further increasing the vibration of the barrier net and thus further improving the self-cleaning effect of the barrier net. Attached Figure Description

[0012] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional schematic diagram of the entire utility model; Figure 2 This is a schematic diagram of the internal structure of the barrier net of this utility model; Figure 3 This is a schematic diagram of the overall structure of the top and bottom frames of this utility model.

[0013] Explanation of reference numerals in the attached figures: 1. Top frame; 2. Bottom frame; 3. Netting; 4. Floating box; 5. Fixing rod; 6. Drive motor; 7. Transmission shaft; 8. Cam; 9. Connecting bottom rod; 10. Top block; 11. Lower support rod; 12. Connecting rod; 13. Top rod; 14. Spring plate; 15. Reinforcing rope. Detailed Implementation

[0014] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0015] This utility model provides an improved self-cleaning aquaculture net cage. The technical solution of this utility model is as follows: like Figures 1-3 As shown, a self-cleaning aquaculture cage includes a top frame 1, a bottom frame 2 at the bottom of the top frame 1, a net 3 on the side walls of the top frame 1 and the bottom frame 2, a float 4 fixedly installed on the outer side wall of the top frame 1, and a cleaning component inside the top frame 1, which includes a fixing rod 5 and a drive motor 6. The fixing rod 5 is fixedly installed on the inner side wall of the top frame 1, and the connecting rod 9 is fixedly installed on the inner side wall of the bottom frame 2; The drive motor 6 is fixedly installed on the top wall of the fixed rod 5. The output end of the drive motor 6 is fixedly installed with a transmission shaft 7. The bottom end of the transmission shaft 7 extends downward into the interior of the fixed rod 5. The bottom end of the side wall of the transmission shaft 7 is fixedly installed with a cam 8. The top block 10 is fixedly installed on the top wall of the connecting bottom rod 9. The top block 10 is in contact with the side wall of the cam 8. When the fixed rod 5 starts to work, the transmission shaft 7 rotates with the output end of the drive motor 6. The cam 8 pushes the top block 10. Since the connecting bottom rod 9 is fixedly installed on the side wall of the bottom frame 2 and the net 3 is fitted on the side wall of the bottom frame 2, the bottom end of the net 3 will swing. Since the bottom end of the net 3 is immersed in water, the swing of the net 3 causes water to impact the side wall of the net 3, washing away the impurities attached to the side wall of the net 3, thus achieving the self-cleaning effect of the net 3.

[0016] like Figures 1-3 As shown, in this embodiment, the inside of the barrier net 3 is provided with an impact component, which includes a lower support rod 11, a spring plate 14 and a reinforcing rope 15; There are two lower support rods 11, both of which are fixedly installed on the bottom wall of the fixed rod 5. The side walls of the two lower support rods 11 are in contact with the inner wall of the netting 3. A connecting rod 12 is fixedly installed on the side wall of each of the two lower support rods 11. A top rod 13 is provided on the side of the connecting rod 12 away from the lower support rod 11. The top rod 13 is C-shaped and there is a certain gap between the top rod 13 and the inner wall of the netting 3. By attaching the lower support rods 11, connecting rods 12 and top rods 13 to the inner wall of the netting 3, when the bottom end of the netting 3 swings, the inner wall of the netting 3 will rub against the lower support rods 11 and connecting rods 12, increasing the vibration of the netting 3 and thus improving the self-cleaning effect of the netting 3. At the same time, when the bottom end of the netting 3 swings, the side wall of the netting 3 will hit the side wall of the top rod 13, further increasing the vibration of the netting 3 and thus further improving the self-cleaning effect of the netting 3. The spring plate 14 is arc-shaped and is fixedly installed on the side wall of the connecting rod 12 and the top rod 13. By using the spring plate 14 to fix the connecting rod 12 and the top rod 13 together, since the spring plate 14 is arc-shaped, when the inner wall of the barrier net 3 hits the side wall of the top rod 13, the top rod 13 swings due to the impact, and the top rod 13 can scrape the inner wall of the barrier net 3, thereby improving the self-cleaning effect of the barrier net 3. There are two reinforcing ropes 15. Both reinforcing ropes 15 are fixedly installed on the side wall of the fixed rod 5. The ends of the two reinforcing ropes 15 that are far apart are respectively fixedly connected to the side walls of the two top rods 13. The position of the top rods 13 is limited by the reinforcing ropes 15, so that the position of the top rods 13 is stable, thereby ensuring that the top rods 13 can stably impact the inner side wall of the barrier net 3.

[0017] The specific working method is as follows: By attaching the top block 10 to the side wall of the cam 8, when the fixed rod 5 starts working, the transmission shaft 7 rotates with the output end of the drive motor 6, and the cam 8 pushes the top block 10. Since the connecting bottom rod 9 is fixedly installed on the side wall of the bottom frame 2, and the net 3 is fitted onto the side wall of the bottom frame 2, the bottom end of the net 3 will swing. Since the bottom end of the net 3 is immersed in water, the swing of the net 3 causes water to impact the side wall of the net 3, washing away the impurities attached to the side wall of the net 3, thus achieving the self-cleaning effect of the net 3. By attaching the lower support rod 11, connecting rod 12, and top rod 13 to the inner side wall of the net 3, when the bottom end of the net 3 swings... When in motion, the inner wall of the barrier net 3 will rub against the lower support rod 11 and the connecting rod 12, increasing the vibration of the barrier net 3 and thus improving its self-cleaning effect. At the same time, when the bottom of the barrier net 3 swings, the side wall of the barrier net 3 will hit the side wall of the top rod 13, further increasing the vibration of the barrier net 3 and thus further improving its self-cleaning effect. The connecting rod 12 and the top rod 13 are fixedly connected together by the spring plate 14. Since the spring plate 14 is arc-shaped, when the inner wall of the barrier net 3 hits the side wall of the top rod 13, the top rod 13 swings due to the impact, and the top rod 13 can scrape the inner wall of the barrier net 3, thereby improving the self-cleaning effect of the barrier net 3.

[0018] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A self-cleaning aquaculture cage, comprising a top frame (1), a bottom frame (2) at the bottom of the top frame (1), a net (3) fitted on the side walls of the top frame (1) and the bottom frame (2), and a float (4) fixedly installed on the outer side wall of the top frame (1), characterized in that: The top frame (1) is equipped with a cleaning component, which includes: The fixing rod (5) is fixedly installed on the inner side wall of the top frame (1), and the connecting rod (9) is fixedly installed on the inner side wall of the bottom frame (2); A drive motor (6) is fixedly installed on the top wall of the fixed rod (5). A transmission shaft (7) is fixedly installed at the output end of the drive motor (6). The bottom end of the transmission shaft (7) extends downward into the interior of the fixed rod (5). A cam (8) is fixedly installed at the bottom end of the side wall of the transmission shaft (7). A top block (10) is fixedly installed on the top wall of the connecting bottom rod (9). The top block (10) fits against the side wall of the cam (8).

2. The self-cleaning aquaculture cage according to claim 1, characterized in that: The barrier net (3) is internally equipped with an impact component, which includes: There are two lower support rods (11). Both lower support rods (11) are fixedly installed on the bottom wall of the fixed rod (5). The side walls of the two lower support rods (11) are in contact with the inner side wall of the net (3). A connecting rod (12) is fixedly installed on the side wall of each of the two lower support rods (11). A top rod (13) is provided on the side of the connecting rod (12) away from the lower support rod (11).

3. The self-cleaning aquaculture cage according to claim 2, characterized in that: The top rod (13) is in the shape of a "C", and there is a certain gap between the top rod (13) and the inner wall of the barrier net (3).

4. A self-cleaning aquaculture cage according to claim 2, characterized in that: The impact assembly also includes: The spring plate (14) is arc-shaped and is fixedly installed on the side wall near the connecting rod (12) and the top rod (13).

5. A self-cleaning aquaculture cage according to claim 2, characterized in that: The impact assembly also includes: There are two reinforcing ropes (15). Both reinforcing ropes (15) are fixedly installed on the side wall of the fixed rod (5). The ends of the two reinforcing ropes (15) that are far apart are respectively fixedly connected to the side walls of the two top rods (13).