Automatic catching device for deep-water live fish according to specifications

Abstract

The present application discloses an automatic catching device for deep-water live fish of different specifications, comprising a fish collecting box (1) and a bait feeding mechanism, and two opposite side surfaces of the fish collecting box (1) are respectively provided with fish inlets (5), a fish outlet (6); it is characterized in that: it also includes a control system, the fish inlet (5) is provided with a sealable fish inlet grill assembly, and the fish outlet (6) is provided with a sealable A closed fish outlet grill assembly; the control system controls the opening and closing of the fish inlet grill assembly, and controls the opening and closing of the fish outlet grill assembly. The present invention can realize the effect of catching big and small fish in different sizes, and avoid the disadvantage that large and small fish are caught together, resulting in waste of seedlings.

Description

technical field [0001] The invention relates to an automatic catching device for deep-water live fish of different specifications, which belongs to the field of marine aquaculture equipment. Background technique [0002] With the acceleration of my country's modernization and urbanization, my country's offshore aquaculture is facing a series of problems such as space shrinkage, environmental pollution, and ecological degradation. Marine aquaculture has become an important way to ensure the sustainable development of the marine aquaculture industry from nearshore to deep sea. , has also become a world consensus. In recent years, with the completion and operation of large-scale steel structure offshore cages such as "Shenlan No. 1", "Dehai No. 1" and "Zhenyu No. 1", my country's deep-sea fish farming has begun to take shape. And in the foreseeable future, the scale of deep-sea fish farming will develop rapidly. [0003] The water body of deep-sea fish culture cages is generall...

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Problems solved by technology

[0004] The shortcoming of this method is that, first of all, the whole box of fish needs to be concentrated each time fishing, because the density is too high, it is easy to cause scratches and hypoxia of the fish, and even death, repeated batches of fishing for many times will affect the quality of the untreated fish. The fish caught is very harmful, which is not conducive to the follow-up breeding after fishing; secondly, this method captures large fish and small fish together, which cannot realize the sub-standard fishing of large and small fish, resulting in waste of farmed fish seedlings; finally, this This method is cumbersome to operate, and the cost of labor and electricity is high, which increases production costs and reduces production efficiency

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