Myriametre-scale deep sea autonomous bottom sediment detecting and obtaining device

Abstract

The invention relates to the technical field of deep sea sampling, in particular to a myriametre-scale deep sea autonomous bottom sediment detecting and obtaining device. A sampling cavity is arranged along the vertical direction, and an upper end cover and a lower end cover are respectively arranged at an opening formed in the upper part of the sampling cavity and an opening formed in the lower part of the sampling cavity; the upper end cover is connected with the upper end of the sampling cavity by a spring; an acoustic release transponder is fixedly arranged in a main body frame, and comprises a release device I and a release device II; a fixed end of the upper end cover is hinged to the sampling cavity, and a free end of the upper end cover is connected with the release device I by a thin mooring rope; a load rejection balancing weight is arranged under the main body frame, and is connected with the release device II by a hook; the lower end cover comprises a rotary bracket and a sealed spring sheet; one end of the rotary bracket is hinged to the upper end of the sampling cavity, and the other end of the rotary bracket is fixedly provided with the sealed spring sheet; the rotary bracket is connected with the release device I by a thin mooring rope. The myriametre-scale deep sea autonomous bottom sediment detecting and obtaining device has autonomous floating ability, can dive by loading the balancing weight, and touches the sea bottom for sampling by means of gravity; the device is easy to manufacture, low in production cost, simple and convenient to install, high in efficiency, safe and reliable.

Description

technical field [0001] The invention relates to the technical field of deep-sea sampling, in particular to a 10,000-meter-level deep-sea autonomous bottom quality exploration device. Background technique [0002] At the bottom of the deep sea there is a layer of mysterious but of great research value. The seabed is of great significance for understanding the changes of the earth's environment, revealing the inner connection between the earth's environmental systems and predicting the long-term climate change in the future. The Mariana Trench, also known as the "Mariana Islands Trench", is the deepest trench currently known on the earth. The trench is located on the western seabed of the North Pacific Ocean, near the east of the Mariana Islands in Guam. Plate convergence subduction zone, where the Pacific plate subducts below the Philippine plate. This sea area has great scientific research value. Every year, a large number of my country's voyages conduct scientific investigat...

AI Technical Summary

Problems solved by technology

[0004] (1) The gravity sampler widely used at present is simple in structure and easy to operate, but the weight and length are too heavy and too large. Because of the steel wire cable deployment method, the 10,000-meter-level operation can only reach several tons of steel wire cables. Weight and cost remain high;

[0005] (2) The success rate is low. Due to the long-term work of the winch system, the cable is often cut due to the failure of the cable system, causing major losses, and because it is too heavy to deploy and difficult to recover, it is easy to cause sampling failure;

[0006] (3) Even if the sampling is successful, the quality of the collected samples is low, and the sampling and recycling process is prone to leakage and impurities, etc.

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