Unconsolidated sediment sampling device capable of sealing bottom

Abstract

The invention relates to a sampling device, in particular to an unconsolidated sediment sampling device capable of sealing a bottom. The device comprises a pressing cover, a third sampling barrel, a moving part, an outer sleeve, a buckle, a second sampling barrel, a first sampling barrel, a connecting bend pipe, driving levers and bottom sealing plates, wherein the pressing cover is in threaded connection with the upper end of the third sampling barrel; the upper end of the outer sleeve is in threaded connection with the third sampling barrel; the lower end of the third sampling barrel is in threaded connection with the upper end of the second sampling barrel; the lower end of the second sampling barrel is in threaded connection with the upper end of the first sampling barrel; one end of the connecting bend pipe is in threaded connection with the moving part; the other end of the connecting bend pipe is in threaded connection with the driving levers; six driving levers are arranged andare rotatably connected with the first sampling barrel; six bottom sealing plates are arranged. The unconsolidated sediment sampling device capable of sealing the bottom has the beneficial effects ofsimple structure, convenience in operation, capability of supporting the bottom part of a sediment sample through the six bottom sealing plates, and capability of effectively avoiding the problem ofsample loss during a lifting process of the whole device.

Description

technical field [0001] The invention relates to a sampling device, in particular to a loose sediment sampling device with a back cover. Background technique [0002] Rivers, oceans, and lakes will accumulate loose sediments. Sediments are of great significance for revealing environmental changes, sedimentation processes, and pollutant migration. Sediments can be used to trace the source of pollution sources, reveal environmental changes, and water in aquatic ecosystems. The composition of animals and plants and the influence of the environment on the distribution of animals and plants, etc., so the study of sediments is very important, and the performance of sediment sampling devices plays a vital role in the quality of sediment sample collection. The grab-type sediment sampling device usually has low airtightness and has the problem of sample loss. It is generally used to collect surface samples of sediment; the columnar sediment sampling device usually has a complicated st...

AI Technical Summary

Problems solved by technology

The grab-type sediment sampling device usually has low airtightness and has the problem of sample loss. It is generally used to collect surface samples of sediment; the columnar sediment sampling device usually has a complicated structure, many components, and a large volume, which is not easy to operate Some columnar sampling devices with simple structure usually lack an effective sediment back-sealing device at the bottom, so that loose sediments have obvious sample loss problems when the sampling device is pulled out. Therefore, it is necessary to design a structure that is simple and easy to operate. Convenient, back-capable loose sediment sampling device

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