Underwater lift adjusting device for enabling net cage to resist wind waves

Abstract

The invention discloses an underwater lift adjusting device for enabling a net cage to resist wind waves. The underwater lift adjusting device for enabling a net cage to resist wind waves consists of an upward-floating body, a bolt mechanism, a lift propeller mechanism, a net cage sinking/floating guide pile, an underwater screw anchoring mechanism, a seafloor base and a balancing weight. The main connection way of the device is as follows: the upper end of the net cage sinking/floating guide pile is connected with the upward-floating body through the bolt mechanism, the lower end is fixed with the seafloor base in a welding way, and the underwater screw anchoring mechanism is sleeved at the lower end of the net cage sinking/floating guide pile in a slip connection mode. ccording to the invention, the net cage can be anchored on the seafloor through the screw anchor, the underwater depth of the net cage can be adjusted through the propeller, and the stable and balanced towing displacement can be realized through the upward-floating body and seafloor base, thereby achieving the aim that the net cage can be fixed on the seafloor or moved away and the underwater lift can be adjusted and controlled; and the device has the advantages of simple operation process and low construction cost, is safe and reliable, and can be easily accepted by common farmers.

Description

technical field [0001] The patent of the present invention relates to an underwater lifting adjustment device for net cages against wind and waves, which belongs to the field of machinery. Background technique [0002] Cage culture has the characteristics of intensification, high density and high benefit, and has a very broad development prospect. Since the 1990s, seawater cage culture in my country has developed rapidly and produced significant social and economic benefits. However, cage culture still faces many problems at present, one of which is that due to the effects of wind, waves and typhoons, the cages are often shifted, the cultured fish are scratched, escaped, and even the cages and breeding facilities are completely damaged. The second of which is environmental pollution, virus rampant, and rampant insect pests, which have caused great economic losses to the majority of fishermen. They are the "three major killers" of the aquaculture industry, and have become a ...

AI Technical Summary

Problems solved by technology

However, there are still some major defects in these two methods: ①It is inconvenient to tow and shift the cages, and it is easy to cause fish diseases when the aquaculture waters are polluted by external sources or the cages themselves

② Pile fixing requires not only offshore professional piling facilities, but also high construction costs, and it is inconvenient to recover the piles driven into the seabed

④ The lifting tec

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