Trapping cage for catching undersea fishes and crabs

Abstract

The invention discloses a trapping cage for catching undersea fishes and crabs and relates to the technical field of marine fishing. The trapping cage for catching undersea fishes and crabs comprisesa box body; a round hole is formed in the middle of each of four side surfaces of the box body; the inner side surface of the box body and the periphery of each round hole are fixedly connected with the bottom end of a tapered pipe; the top end of the tapered pipe is fixedly connected with one side surface of a connecting ring. According to the trapping cage for catching undersea fishes and crabs,the bottom of the box body is fixedly connected with a connecting frame I, the connecting frame I is fixedly connected with a connecting frame II by a net bag; the top end of a connecting rope is fixedly connected with a connecting disk; and when the trapping cage is pulled up, the connecting rope is pulled to drive the connecting frame II to upwards move so as to unfold the net bag, the fishes and the crabs enter the net bag, and the net bag is unfolded to be capable of blocking the connecting ring, so that the fishes and the crabs cannot escape when the trapping cage is pulled up to roll, and problems proposed in the background art are solved.

Description

technical field [0001] The invention relates to the technical field of marine fishing, in particular to a trapping cage for fishing crabs on the bottom of the sea. Background technique [0002] Marine fishing refers to the fishing activities of various natural aquatic animals and plants in the ocean, the fishing of various fish, shrimps, crabs, shellfish, pearls, algae and other natural marine animals and plants. The marine fishing industry uses various fishing gear, fishing boats and The production industry of equipment fishing for marine fish and other aquatic economic animals. The marine fishing industry is a traditional marine industry and an important part of the marine aquaculture industry. The marine fishing industry is generally divided into coastal fishing industry, offshore fishing industry, offshore fishing industry and distant sea fishing industry in terms of fishery utilization. [0003] The fish and crab trapping cage is suitable for fishing sea creatures. It...

AI Technical Summary

Problems solved by technology

[0003] The fish and crab trapping cage is suitable for fishing sea creatures. It is mainly used to catch fish and crabs. When used, it sinks into the bottom of the sea. It uses the habit of sea creatures to live in caves or installs trap lights in the device to catch marine creatures. It is difficult for crabs to come out after entering the device, but the existing trapping holes for fish and crabs still have deficiencies. When the device is pulled up from the bottom of the sea, when the box body is tilted and rolled, the fish and crabs may escape from the device when the box entrance becomes rolled to the bottom. out, it affects the fishing of fish and crabs, and urgently needs to be improved

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