A device for catching shrimp

Abstract

The invention discloses a shrimp catching device which aims at being small in catching amount, convenient to operate and capable of automatically floating up after catching shrimps and achieving automatic sampling. The shrimp catching device comprises a supporting frame, a shrimp catching cylinder, a floating ball and an automatic releasing device arranged on the shrimp catching cylinder. The supporting frame is provided with a vertical limiting sleeve, the shrimp catching cylinder is arranged in the vertical limiting sleeve in an insertion mode, an upper limiting block is arranged on the upper portion of the outer side face of the shrimp catching cylinder and located above the vertical limiting sleeve, an inverted-cone limiting sleeve with the area of the cross section gradually increasing from bottom to top is arranged in the middle of the bottom face in the shrimp catching cylinder, openings are formed in the upper end and the lower end of the inverted-cone limiting sleeve, a shrimp inlet corresponding to the lower end opening of the inverted-cone limiting sleeve is formed in the middle of the bottom face of the shrimp catching cylinder, and a buoyancy device enabling the shrimp catching cylinder to float is arranged in the shrimp catching cylinder.

Description

technical field [0001] The invention relates to an aquatic product catching device, in particular to a shrimp catching device. Background technique [0002] Due to the destruction and pollution of the ecological environment of the water area, the quality of aquatic products living in the water area is seriously affected. On the other hand, with the improvement of people's living standards, while the production and consumption of aquatic products have greatly increased, the quality of aquatic products has also attracted more and more attention. Therefore, the research on whether the quality of aquatic products is affected by pollution has gradually been paid attention to; but before the quality monitoring of aquatic products, it is first necessary to capture the aquatic products samples to be tested. [0003] Most of the current shrimp catching devices are shrimp nets and shrimp pots used for fishing; when catching shrimp, the shrimp nets or shrimp pots are lowered into the ...

AI Technical Summary

Problems solved by technology

At present, the catches of shrimp nets and shrimp pots used for this kind of fishing are large, and they are not suitable for monitoring the quality of aquatic products in waters to catch shrimps to be tested.

On the other hand, the current shrimp nets and shrimp cages used for this kind of fishing need to be manually operated to lift the shrimp nets or shrimp cages, which is not only inconvenient to operate, but also often requires multiple operations to catch shrimp; especially in deep water It is more inconvenient when fishing in the area

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