Automatic fishing device in submarine

Abstract

The invention discloses an automatic sea bottom fishing machine, which is composed of a plurality of independently operated fishing groups, a rack, hanging rings, supporting rods, buoyancy tanks, a liquid nitrogen gasifying device, battery packs and a hydraulic oil feeding device. The hanging rings are arranged at the top part of the rack, the fishing groups are respectively arranged at the side parts of the racks, and the buoyancy tanks, the liquid nitrogen gasifying device, the hydraulic oil feeding device, the battery packs and a wireless remote control device are all arranged inside the rack. The fishing machine is characterized in that a fishy smell tempting box, a sea bottom monitor and the wireless remote control device are also arranged inside the rack; the fishing groups are composed of fishing arms, floating ball transmission devices, floating ball air-charging and water-discharging devices, devices for driving the ball floats to clipping rings, the clipping rings, the fishing floating balls and automatic control devices. The fishing machine has the advantages that the navigation of ships is not affected during the sea bottom operation, the automation of the operation ishigh, the fishing capacity is high, the output rate is high, the labor intensity of the operation is low, and the energy consumption is low.

Description

technical field [0001] The invention relates to a marine fishery fishing machine, in particular to a seabed automatic fishing machine. [0002] Background technique [0003] At present, in the marine fishing industry at home and abroad, there is no technical means for fishing large fish species at the bottom of the ocean, and there is still a blank in this technical field. There are four traditional fishing techniques in current fishing. The technical characteristics and advantages and disadvantages are described as follows: [0004] Trawling technology: Trawling is divided into single-vessel trawl and double-vessel trawl, surface trawl and underwater trawl. The nets are dragged by fishing boats to accelerate forward in the ocean. Drag it into the bag to achieve the purpose of fishing. Surface trawling catches small surface fish with low economic value. Bottom trawling has high water resistance and low speed. Big fish can swim away from the net bag at any time when they ar...

AI Technical Summary

Problems solved by technology

[0006]Longline fishing technology: Longline fishing is designed for tuna fishing. The casting depth is 60-80 meters, the fishing group generally has 2000-3000 hooks, the main line casting length is about 90-120 kilometers, and the branch line hook distance is 40 meters per piece. Although this fishing system is huge, with a span of more than 100 kilometers, but The depth of the water layer where the bait and the fish school are located is different, and the hook in the fishing group has no simulated action of injured fish, and has no ability to attract and lure the tuna bait in different water layers. The bait is only hung in the sea to wait for the tuna to take the bait , it can be seen that longline fishing is a passive fishing method, which can only catch fish species in the middle and upper water layers, and cannot catch fish species in the bottom of the ocean.

In addition, in the 1980s, longline fishing could catch 15-50 fish per 1,000 hooks, but now only 2-15 fish can be caught per 1,000 hooks. Longline fishing boats have to sail more than 100 kilometers a day to cast hooks , the operation time is long, the labor intensity is high, the fuel consumption is high, and the economic benefits of fishing are not obvious. It can be seen that longline fishing is currently a sunset fishing method.

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