A multi-chamber suspended mass and water body sampling device and sampling method

Abstract

The invention discloses a multiple-bucket type suspended load and water body sampling apparatus and method. The apparatus comprises a shaft lever and a plurality of connecting rods, wherein one end ofthe shaft lever is driven by a motor assembly, the other end of shaft lever is vertically connected with the connecting rods, and head ends of the connecting rods are connected with collecting bucketassemblies. Each collecting bucket assembly comprises a bucket body with both side opening and a cover matched with the bucket body, and the cover is arranged at the top side of the bucket body through a rotating shaft. A two-way electromagnetic valve is arranged at the top of each bucket body, and is matched with a first fastener arranged at the upper end inner side of the corresponding cover. The motor assembly comprises a first shell of which the top is welded with a hanging rod, and a first single-chip microcomputer of a motor in the first shell; a first power supply supplies power through the first single-chip microcomputer; a control device drives the first single-chip microcomputer and the two-way electromagnetic valve through a signal barrel. Position of specific collecting buckets and open and close of the covers of the collecting bucket are controlled through electric signals, multiple sampling of water samples at different depth of a certain perpendicular line can be realized by means of water surface remote control, high-concentration collection is achieved while sampling efficiency is improved, and accordingly, the apparatus and method has high practicability and wideapplicability.

Description

technical field [0001] The invention relates to a sampling device and a sampling method, in particular to a multi-chamber suspended mass and water body sampling device and a sampling method. Background technique [0002] The sediment content in the river channel has always been one of the main items of the hydrological survey. Sediment in natural rivers often silts up the river course, and has a huge impact on the water regime of the river, the construction of water conservancy and hydropower projects, and the change and governance of the river. The basic work of sediment rate and analysis of main data such as river sediment particle gradation is of great significance to economic construction activities that require the study of river sediment movement laws, including reservoir construction, river regulation, embankment construction, and waterway regulation. [0003] At the same time, people have found from continuous practice that when the section is relatively stable and ...

AI Technical Summary

Problems solved by technology

[0004] The general sampling method is to bind a single sampler to lead fish, then sink to different depths successively and collect samples after sampling. This sampling method requires a lot of repetitive work, takes a long time, and has low sampling efficiency. The sampling time interval is long and the representativeness is not strong

Some existing improved sampling methods concentrate multiple sampling devices on a fixed bracket, and close the lids one by one through signals to complete the collection of samples. However, this device is often limited in the form of a sampler and a fixed bracket, making the overall device The integration level is not high, and the distance between different samplers is severely limited

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