Shrimp sample collection device for biological quality monitoring

Abstract

The invention discloses a shrimp sample collection device for biological quality monitoring. An objective is to provide a shrimp sample collection device which is small in yield, convenient in operation, and can automatically float after shrimps are caught, and realizes automatic sampling. The device comprises a support frame, a mesh shrimping cylinder, a gravity ball, and an automatic release device arranged on the mesh shrimping cylinder. The support frame is provided with a vertical stop collar. The mesh shrimping cylinder is inserted in the vertical stop collar. The upper part of the outer side surface of the mesh shrimping cylinder, above the vertical stop collar, is provided with an upper limiting block. The middle part of the bottom surface in the shrimping cylinder is provided with a conical limiting guide sleeve whose cross section area gradually reduces from bottom to top. The upper end and the lower end of the conical limiting guide sleeve are provided with openings. The middle part of the bottom surface of the shrimping cylinder is provided with a shrimp inlet corresponding to the lower end port of the conical limiting guide sleeve. The mesh shrimping cylinder is internally provided with a buoyancy device which makes the mesh shrimping cylinder float.

Description

technical field [0001] The invention relates to a shrimp catching device, in particular to a shrimp sample collection device for biomass quality monitoring. 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 shr...

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 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; It is more inconvenient when fishing shrimp in deep water areas

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