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 used for net cages to resist wind and waves, and belongs to the field of machinery. Background technique [0002] Cage aquaculture has the characteristics of intensive, high density and high efficiency, and its development prospects are very broad. Since the 1990s, my country's marine cage aquaculture has developed rapidly and has produced significant social and economic benefits. However, the current cage aquaculture still faces many problems, one of which is due to the effects of wind waves and typhoons, which often cause the cages to shift, the farmed fish scrapes, escape, and even the cages and breeding facilities are completely destroyed. The second of these is environmental pollution, raging viruses, and rampant pests, which have caused great economic losses to the vast number of fishermen. They are the "three 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 technology of deep water cages is not yet mature, and the sinking depth of the cages is difficult to control

[0003] The patent of the present invention is designed to solve the above problems. The purpose is to effectively solve the current problem of complicated offshore construction procedures and high operating costs of the cages, and realize convenient adjustment of the working water depth of the cages and seabed fixation.

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