Lake bottom sediment sampling device

Abstract

The invention discloses a lake bottom sediment sampling device which comprises an operation platform, a control device and a sampler, wherein the operation platform comprises a plurality of vacuum oil drums, a steel framework and a wood plate; every two adjacent vacuum oil drums are fixedly connected with each other through the steel framework; the wood plate is fixed on the steel framework; iron rings are fixed at four corners of the wood plate; the control device comprises a drill rig, a dill rod, a bracket, an auxiliary bracket, a pulley and a steel rope; the drill rig, the bracket and the auxiliary bracket are mounted on the midpoint on the upper surface of the wood plate; a sampling hole is formed in the midpoint of the wood plate; the upper end of the drill rod is connected with the steel rope; the steel rope is connected with a winch on the drill rig through the pulley; the lower end of the drill rod penetrates a fixing drill hole right above the sampling hole. The lake bottom sediment sampling device has the advantages that the limitation of a channel is avoided; the cost is low; the efficiency is high; the integrity of a sample is high; disassembly and assembly are fast; on-land towing to any water body for sampling is realized; the sampler is high in strength, and excellent in corrosion resistance and compression resistance.

Description

technical field [0001] The invention relates to the field of water environment pollution prevention and control engineering, in particular to a lake sediment sampling device. Background technique [0002] At present, the collection of deep-water bottom mud is mainly divided into three types: excavation type mud extraction device, cone type (drilling type) mud extraction device and tubular mud core sampling device. Although the dredging dredging device has a large amount of dredging at one time, it can only collect samples of 10-20 cm from the surface of the sediment at the deepest point; the cone (drilling) dredging device has the characteristics of simple structure and convenient operation, and its disadvantage is The amount of sampling is small; the tubular mud core sampling device can obtain complete vertically distributed sediment samples. The tube-type mud core sampling device is suitable for the collection of sediment columnar section samples, and has shown strong adv...

AI Technical Summary

Problems solved by technology

For deep-water lake sediment collection, manual samplers cannot collect effective sediment samples. Although large-scale mechanical sampling facilities save time and effort, their sampling costs and personnel skill requirements are high, and they are not suitable for most lake sampling.

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