Efficient automatic fishing device based on grid hole changes

Abstract

The invention relates to the field of fishing technology, and discloses an efficient automatic fishing device based on grid hole changes. The efficient automatic fishing device comprises a central pipe, wherein limiting circular tables are fixed at the left and right ends of the central pipe respectively; a net cover is fixedly mounted on the inner wall of the limiting circular table at the rightend, and a lead screw is fixedly mounted on the outer wall of the limiting circular table at the left end; mounting columns are fixedly mounted on the lead screw and the outer end of the limiting circular table at the right end respectively; the outer wall of the lead screw is rotationally sleeved with a threaded sleeve; and the threaded sleeve is rotationally sleeved with a fixed ring. Accordingto the efficient automatic fishing device based on grid hole changes, the central pipe, an arc-shaped plate, the threaded sleeve, the lead screw, the mounting columns, a bait hole and a net cover arearranged, fishes are attracted by the bait, telescopic power is provided for telescopic grids, the automation degree is high, influence to the fish growth and propagation environmental is low, injuryto the fishes is low, and the fishing quality is high; and through the telescopic grids, a large number of fishes can drill in conveniently, the operation is simple, labor is saved, the fishing efficiency is high, and the practicability is high.

Description

technical field [0001] The invention relates to the technical field of fishing, in particular to a high-efficiency automatic fishing device utilizing changes in grid holes. Background technique [0002] Fishery is an important part of China's national economy. China is the largest fishery producer in the world. Since the reform and opening up, fishery output has grown rapidly. Fishery plays a vital role in my country's rural development and improving farmers' income. Food security has an important impact, and fishery is also an important channel for my country's export earnings, so a rationally developed fishery is also of great significance to biodiversity. [0003] However, China's total fishery output is increasing year by year, but the growth rate is declining year by year. The main reason for the decline in fishery output, especially fishing output, is the overfishing caused by the lack of management of fishery resources, the expansion of fishing areas and the increase o...

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Problems solved by technology

[0003] However, China's total fishery output is increasing year by year, but the growth rate is declining year by year. The main reason for the decline in fishery output, especially fishing output, is the overfishing caused by the lack of management of fishery resources, the expansion of fishing areas and the increase of fishing intensity. , and most of the fishing methods use electric fish, fried fish, and large-scale pulling and casting nets, which can easily damage the growth and reproduction environment of fish, and easily cause damage to fish. The dragging of net cages can easily damage fish. The scales and epidermis of fish, the survival rate after fishing is very low, so that the quality of fishing is not high. If it goes on for a long time, it will cause serious loss of fish resources and decline in production. Although the multi-directional traditional ground cage net of patent CN206744333U is used to make traps for fishing. The fish damage caused is small, but there are only two entrances and exits for each ground cage net. The operation of multiple ground cage nets is difficult, labor-intensive, and small in size, and the fishing efficiency is low. Therefore, we propose a method for fish growth It has little impact on the breeding environment, low damage to fish, high fishing quality, simple operation, saving manpower, and high fishing efficiency. It is an efficient automatic fishing device that uses grid hole changes

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