Novel self-contraction type aquatic fishing net

Abstract

The invention discloses a novel self-contraction type aquatic fishing net, and belongs to the technical field of fishing nets. According to the novel self-contraction type aquatic fishing net, a flexible inner ring body is arranged at the bottom end of a net body, a plurality of connecting bags are arranged on the flexible inner ring body, and net drawing extendable bodies limited in hollow columns are connected among the connecting bags; and when fishes are lured into the net body by a bait layer, the fishes in the net body are gradually increased and bite the bait layer, the bait layer is gradually hollowed out after being bitten, the hollow columns on the inner side of the bait layer are exposed, hydrolysis filling layers in the hollow columns are gradually disintegrated and gasified when encountering water, and at the moment, bearing balls sink under the action of gravity and drive the net drawing extendable bodies to sink towards the bottom end of the net body, so that the plurality of connecting bags shrink and get close to one another after the net drawing extendable bodies fall down, the bottom of the net body shrinks along with the flexible inner ring body, automatic net drawing of the net body is completed, manual operation is not needed, the net drawing amplitude is greatly reduced, fishes are not prone to being frightened and escaping, and excessive damage to the fishes is avoided.

Description

technical field [0001] The invention relates to the technical field of fishing nets, and more specifically relates to a self-shrinking novel aquatic fishing net. Background technique [0002] Fishing nets are indispensable fishing tools for fishery production. Coastal fishermen first used simple nets to fish by the sea. In the fishing process, the trawl net is first placed on the water surface, and then the trawl net is pulled by two pull ropes by manpower to surround the water surface, so that the fish in the water surface can be caught. [0003] The traditional fishing method is to manually pull the fishing net to collect the net. It is difficult to determine whether there are fish in the fishing net during the collection process. Generally, it depends on fishing experience, which will sometimes cause an empty net to be collected. Back; in addition, manual net collection is labor-intensive. When the pull rope is used to pull the trawl net, each pull rope needs to be pulle...

AI Technical Summary

Problems solved by technology

[0003] The traditional fishing method is to manually pull the fishing net to collect the net. It is difficult to determine whether there are fish in the fishing net during the collection process. Generally, it depends on fishing experience, which will sometimes cause an empty net to be collected. Back; in addition, manual net collection is labor-intensive. When the pull rope is used to pull the trawl net, each pull rope needs to be pulled by multiple people. Farther away, the fish are vulnerable to fright and have a high escape rate, resulting in low fishing success rate, and large-scale net collection often causes greater damage to the fish body. After the fish is caught out of the water, the survival rate is extremely low, so Reduces the commercial value of fish and harms the economic interests of fishers

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