Lifting-type cultivation net cage

Abstract

The invention belongs to the technical field of cultivation net cages, and more specifically relates to a lifting-type cultivation net cage. The net cage comprises two floating tubes and a floating tube support. The floating tubes are connected together through the floating tube support. The net cage is characterized in that the net cage comprises a plurality of vertical grid suspension beams, a plurality of horizontal rigid cross beams, and a gravity adjustment device. The tops of the vertical grid suspension beams are provided with a spherical or semispherical suspension block, and the floating tube support is provided with installation holes. The bottom of the installation hole is an arc-shaped surface which is matched with the spherical or semispherical suspension block. The vertical grid suspension beams pass through installation holes. The bottoms of the adjacent vertical grid suspension beams are respectively connected with two ends of the horizontal rigid cross beams. The gravity adjustment device is connected with the bottoms of the vertical grid suspension beams through bottom frame nylon mooring ropes. The net cage is simpler in structure, is simpler and more reliable in operation control system, is small in net deformation, is resistant to cloth swinging, enables the lifting to be safe and reliable, and is more complete and humanized in cage functions.

Description

technical field [0001] The invention belongs to the technical field of aquaculture net cages, and more specifically relates to a lifting type aquaculture net cage. Background technique [0002] Cage aquaculture is an important part of the marine economy and has a broad market and development potential. The cage culture process does not require auxiliary resources, saves resources, and has the characteristics of low investment and high return. The key factor restricting deep-sea aquaculture is the anti-wind and wave ability of cages. Solving this problem will help the entire industry to advance to deep water. [0003] At present, 95% of the total number of deep-water cages in my country are gravity-type HDPE cages imported from Norway. The structure is as follows: figure 1 As shown, this kind of tubular frame gravity cage made of HDPE (high density polyethylene) material can sink to a certain depth before the typhoon hits by setting the injection / drainage pipe, so as to...

AI Technical Summary

Problems solved by technology

[0003] At present, 95% of the total number of deep-water cages in my country are gravity-type HDPE cages imported from Norway. The structure is as follows: figure 1 As shown, this kind of tubular frame gravity cage made of HDPE (high density polyethylene) material can sink to a certain depth before the typhoon hits by setting the injection / drainage pipe, so as to avoid the wave impact of the waterline. From the practical point of view, no matter the mooring or the structure, this kind of cage is not suitable for anti-sea current, anti-wind and wave, and it does not have the ability to survive in severe situations such as typhoons.

Images