Original sample collector for river sediment and water sample

Abstract

An original sample collector for river sediment and water sample, the collector comprises a plexiglass sampling cylinder, a plurality of connecting long rods, a movable ring, an external thread sleeve, an upper internal thread ring, a lower internal thread ring, a connecting rod base, a plurality of petal-shaped bottom sealing plates, and a plurality of connecting short rods. Simultaneously rotatethe upper and lower internal thread ring to move the movable ring up or down along the plexglass sampling cylinder, then pull or push the corresponding petal-shaped bottom sealing plates through theconnecting long rods and the connecting short rods, and open the petal-shaped bottom sealing plate and make it away from the bottom of the plexglass sampling cylinder or make it form a closed hollow hemisphere structure at the bottom of the plexglass sampling cylinder. The collector of the invention can effectively keep the layered physical form of the water sample and the bottom sediment collected from the river from being changed and realize the sampling of the original sample, therefore, improves the scientificity of the research and the accuracy of the observation data.

Description

technical field [0001] The invention relates to a structure of a collector, in particular to a collector for river bottom mud and water samples. Background technique [0002] River water quality and bottom sediments are generally distributed in layers, and each layer has different physical and chemical properties. In the existing collection instruments, if the sediment at the bottom of the water is to be sampled, it is difficult to control whether to collect the surface layer, the middle layer or the bottom layer of the sediment, and the thickness of each sediment layer is even more difficult to grasp; in addition, it has been difficult not to destroy the sediment physical form. Changing the physical form will change its physical properties, changing the physical properties, and it is difficult to determine the level of the sample used, the experimental results will become inaccurate, and the meaning of analyzing the bottom sediment will be lost. For some experiments that ...

AI Technical Summary

Problems solved by technology

In the existing collection instruments, if the sediment at the bottom of the water is to be sampled, it is difficult to control whether to collect the surface layer, the middle layer or the bottom layer of the sediment, and the thickness of each sediment layer is even more difficult to grasp; in addition, it has been difficult not to destroy the sediment physical form

Changing the physical form changes its physical properties, changing the physical properties, and it is difficult to determine the level of the sample used. The experimental results will become inaccurate and lose the significance of analyzing the bottom sediment.

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