High-efficient harmless fishing device for fish tank

Abstract

The invention relates to a high-efficient harmless fishing device for a fish tank. The high-efficient harmless fishing device comprises a driving mechanism, a fish passage mechanism and a fish collecting mechanism, wherein, in the driving mechanism, a fishing net is laid in a first rectangular frame and a second rectangular frame, one end of the first rectangular frame is articulated with one end of the second rectangular frame, and a round hole with the diameter which is consistent with the height of the second rectangular frame is formed on the fishing net in the second rectangular frame; in the fish passage mechanism, the diameter of a big port part of a conical cylinder is consistent with that of the round hole in the driving mechanism, and the diameter of a small port part of the conical cylinder is slightly larger than the average body height of a fish stock in the fish tank; and the fish collecting mechanism is of a mesh bag with one closed end, the open end of the mesh bag is matched with the big port part of the conical cylinder, and a lifting rope is arranged at the open end of the mesh bag by penetration. The high-efficient harmless fishing device for the fish tank, provided by the invention, can overcome the defects of the existing fishing way from the fish tank, realize fast-speed and high-efficient fishing and prevent harming fish during fishing, and further has extensive using value.

Description

technical field [0001] The invention relates to the field of fish farming, in particular to a high-efficiency and harmless fishing device for fish tanks. Background technique [0002] In the modern fishery production process and fish biological experiments, fish farming is required. When fish are recaptured after farming, harm can be done to the fish themselves. For fishery production, injury will cause fish to get sick, which increases the cost of farming; during the transportation of fish, injury may cause fish death, further expanding the loss. For fish biology experiments, on the one hand, the injury of fish will inevitably affect the final experimental results, which in turn will affect the judgment of a biological characteristic, resulting in huge experimental errors; Active, fishing is very inconvenient, which greatly increases the labor intensity of biological workers. The current methods of catching fish from fish tanks are as follows: [0003] 1. Fished by ...

AI Technical Summary

Problems solved by technology

[0006] Regardless of the type of fish tank, the efficiency of the above methods is low, and it will cause great irritation and damage to the fish. At the same time, each method also has its own limitations.

Images