A retractable net cage for easy fishing

By designing retractable net cages that facilitate fishing, the problems of insufficient space and inconvenient fishing in traditional aquaculture have been solved, realizing efficient, stable and economical fish farming in deep sea, enhancing the ability to withstand wind and waves and structural stability, and simplifying the operation and maintenance process.

CN118402490BActive Publication Date: 2026-06-30JIANGSU UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU UNIV OF SCI & TECH
Filing Date
2024-04-30
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional aquaculture suffers from insufficient space, inconvenient harvesting, low structural strength, and susceptibility to damage from natural disasters. In contrast, deep-sea aquaculture environments are less affected by human factors and have excellent water quality.

Method used

Design a retractable net cage for easy fishing, including a wind turbine base, a pulling retraction device, a landing device, a net, an operating platform, a fishing platform, and an automatic feeding device. The net is retracted and unfolded through a traction system and a folding bracket. Combined with the wind turbine base float frame and a reel-in machine, the net cage achieves stability and convenient operation.

Benefits of technology

It improves the utilization rate of deep-sea aquaculture space, reduces labor costs, enhances resistance to wind and waves, simplifies operation and maintenance, improves feed utilization and fishing efficiency, and ensures the quality of aquaculture products.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to a retractable net cage for easy harvesting, comprising a wind turbine base, a retraction device, a landing device, a net, a wind turbine foundation float frame, an operating platform, an automatic feeding device, and a harvesting platform. The folding bracket of the retraction device is connected to the wind turbine foundation float frame via the net. The device is pulled by a traction system, and a winch pulls the ropes, causing the entire structure to retract. When the entire device is closed and the aquatic products are collected, the net cage reaches its retracted state, allowing the aquatic products to be harvested on the harvesting platform. An automatic feeding device is installed on the harvesting platform; the time and amount of feed need to be set, and feeding will occur automatically at the designated time. This invention features a user-friendly interface, making it convenient for aquaculture personnel to remove dead fish, change nets, and harvest fish. The net cage of this invention is highly resistant to wind and waves and strong currents, and also has environmental protection functions. Retractable deep-water net cages are bound to become an inevitable trend in net cage development.
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