Seabed low-pollution type microorganism multi-membrane sampling device

Abstract

The invention relates to a microorganism sampling device, and aims to provide a seabed low-pollution type microorganism multi-membrane sampling device. The device comprises a pressure compensation device, a sampling mechanism, a speed reducing and torque increasing mechanism and a driving device, the sampling mechanism comprises a sampling cavity outer cylinder and a sampling cavity inner cylinder which are mounted in a nested manner, a filter membrane fixing shaft penetrates through the axial center, and a plurality of groups of filter membrane structures are arranged on the filter membrane fixing shaft in parallel; one end of the filter membrane fixing shaft is connected with a driving device through a speed-reducing torque-increasing mechanism, and the sampling cavity inner cylinder is driven to rotate around the shaft in the sampling cavity outer cylinder through the speed-reducing torque-increasing mechanism, so that relative intercommunication or staggered sealing of the inner and outer water inlet holes is realized; and the pressure compensation device is connected with the cavity of the sampling cavity inner cylinder. According to the invention, a rotatable opening and closing double-cylinder structure is used as a main sampling component, the sampling cavity can be always kept closed in the lowering and recycling processes, and an open environment is formed only in the seabed rotating inner cylinder at a preset depth; impurity pollution can be effectively prevented, and it is ensured that a pure microbial film sample at the target depth is obtained.

Description

technical field [0001] The invention relates to a microbial sampling device, in particular to a submarine low-pollution microbial multi-film sampling device. Background technique [0002] The ocean occupies about 71% of the total surface area of ​​the earth, and there are more than 10 million biological species in the ocean, which has great biodiversity. Over the past 50 years, humans have discovered more than 20,000 natural products through the cultivation and research of marine microorganisms. Among them, many compounds with novel and unique structures have been found to have anti-tumor, anti-cell aging, and anti-bacterial / viral activities, which are of great significance for the development of related drugs. The research and development of marine microbial diversity and its natural product resources is receiving more and more attention from countries all over the world. [0003] At present, direct sampling is usually adopted for the microbial content in ordinary seawate...

AI Technical Summary

Problems solved by technology

As a result, in the process of lowering and recovering the sampling device, the plate will inevitably come into contact with seawater at other depths, so that the samples will be mixed with impurities and bacteria in seawater at different depths, reducing the purity of specific samples at the target depth

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