Synchronous layered flushing layered mud collecting device for laboratory water tank

Abstract

The invention discloses a synchronous layered flushing layered mud collecting device for a laboratory water tank. The device comprises a mud collecting pipe, a bracket, a handle, a control knob, a rubber sealing ring, a buckle and a connecting rod. A pointed end is formed at the lower end of the mud collecting pipe and can enter the mud layer vertically; the mud collecting pipe can form sealed space at the mud bottom, so that the collected mud keeps the original layering. The handle is used for controlling the whole mud collecting device and can be held by an experiment worker; the mud collecting pipe keeps vertical and stable at the entrance of the mud; and the handle is marked with a scale for accurate mud collection assistance. The control knob enables the mud collecting pipe to reach the mud bottom and then to be controlled. With the rubber seal ring and the buckle, the sealing performance of the device is enhanced, so that the water entrance into the device in experiment is minimized. The synchronous layered flushing layered mud collecting device has advantages of novel structure, simple operation, high portability, low disturbance in testing, and high experimental data accuracy.

Description

technical field [0001] The invention belongs to the technical field of water environment and relates to a portable, accurate and reliable mud picker suitable for laboratory experiments. Background technique [0002] At present, the commonly used mud extractors can be divided into three types according to the shape and sampling method: columnar mud extractor, grab-type mud extractor and box-type mud extractor. These three mud extractors are mainly used for sampling soil in shallow seas, shores and rivers, etc., but because the thickness of mud used in laboratory simulation experiments is generally 10cm, the commonly used mud extractors are large in size and cumbersome to operate, which cannot meet the requirements of the laboratory. Required for experimental mud mining. In the actual simulation experiment, the mud is usually taken manually, which disturbs the water body greatly, destroys the stratification of the mud in the simulation experiment, and will affect the experime...

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Problems solved by technology

However, due to the shallow thickness of the mud used in the laboratory simulation experiment, the layering of the mud in the experiment is easily destroyed when it is taken, and it is difficult to meet the requirements of collecting in-situ mud samples. mud extractor

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