Compound net cage with mooring rope winching inner net cage capable of moving up and down

Abstract

The invention relates to a compound net cage with a mooring rope winching inner net cage capable of moving up and down and a seawater breeding net cage. The compound net cage comprises an outer frameand an inner frame located therein, wherein the outer frame not only can be fixed in the sea bottom in a diving manner, but also can move transversely in a floating manner; the inner frame can lift tomove in a balance manner relative to the outer frame; the inner frame and the outer frame are polygonal or round in an overlook view; the outer frame has a self-balanced lifting up-down mechanism andthe inner frame has a mooring rope winching balanced lifting mechanism; and a working and travelling sightseeing platform is mounted on the top of a central buoyancy vertical tube of the outer frame,and radial gallery bridges to the periphery are arranged for travelling and sightseeing. The compound net cage provided by the invention has the beneficial effects that the outer frame and the innernet cage are arranged, the outer frame is fixed in the sea bottom, the inner net cage is arranged in the outer frame for breeding, and the inner net cage can move up and down relative to the outer frame, so that the seawater laminar flow position can be changed, healthy and rapid growth of organisms is facilitated, the output and quality of the bred product are improved, and the travelling and sightseeing platform can increase the economical and social benefits.

Description

Technical field: [0001] The invention relates to a culture net cage, in particular to a compound net cage in which the inner net cage is moved up and down by a winch. Background technique: [0002] Existing net box is made of frame, and net clothing is set in it. The height of the breeding layer in the net clothes is fixed, if the height of the breeding layer is often changed, so that the cultured organisms are in different sea current water layers, and their living and growth environments are changed, this will undoubtedly stimulate and facilitate the rapid growth of the organisms. But once the large-scale net cage is placed on the seabed, the height of the culture layer in the net clothes is fixed. If the height of the culture layer needs to be changed, the large-scale net cage has to be lifted as a whole, which is both troublesome and time-consuming, and the suspended net cage is also Unstable and susceptible to drift due to ocean currents. So how to only make the frame...

AI Technical Summary

Problems solved by technology

But once the large-scale net cage is placed on the seabed, the height of the culture layer in the net clothes is fixed. If the height of the culture layer needs to be changed, the large-scale net cage has to be lifted and lowered as a whole, which is both troublesome and time-consuming, and the suspended net cage is difficult. Unstable, prone to drift due to ocean currents

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