Deep sea long-column-shaped sampler with adjusting mechanism

Abstract

The invention relates to the technical field of deep sea sampling, in particular to a deep sea long-column-shaped sampler with an adjusting mechanism. The deep sea long-column-shaped sampler comprises a device body, the device body comprises a long-column-shaped sampler body, water accumulation tanks are fixedly mounted on two sides of the long-column-shaped sampler body, and fixing plates are fixedly mounted in the water accumulation tanks. During use, a screw rotates to control whether the sealing block and the inner wall of the feeding pipe are attached and sealed or not, so that the water amount in the water accumulation tank is controlled, the density of the water accumulation tank is adjusted, when the water amount in the water accumulation tank is large, the overall density of the water accumulation tank is increased, the gravity of the device is increased, buoyancy borne by the device is reduced, and the water accumulation tank is prevented from being blocked. The gravitational potential energy during lowering of the device is increased, at the moment, the whole device is inserted into the seabed sediments deeper, otherwise, the whole device is inserted into the seabed sediments shallower. The lowering speed of the device in the deep sea can be conveniently adjusted in the mode, and therefore the seabed sediments of different depths can be conveniently sampled.

Description

technical field [0001] The invention relates to the technical field of deep-sea sampling, in particular to a long-column deep-sea sampler with an adjustment mechanism. Background technique [0002] The long column sampler is an important equipment for obtaining seabed sediment samples. The long columnar seabed sediment samples obtained by the columnar sampler are widely used in marine resource exploration fields such as marine oil and gas exploration, marine mineral resource exploration, marine environmental investigation and monitoring, etc. Made important contributions to national defense construction. [0003] Its working principle is that the gravity of the counterweight mechanism on the sampler is combined with the sling on the winch, so that the sampler is freely dropped and inserted on the sediment in the seabed, and then the sample is taken. In the sea, the density of the sampler and the counterweight mechanism is constant, so the buoyancy suffered when diving in t...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a deep-sea long columnar sampler with an adjustment mechanism, to solve the problem that the current long columnar sampler proposed in the background technology has a constant speed of free fall in the deep sea, so it is inconvenient to adjust the sampler due to gravity Interpolation of depth within sediments, making it difficult to control the problem of sampling sediments at different depths

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