A kind of river bottom mud and water sample collector

Abstract

A collector for river bottom mud and water samples, including a plexiglass sampling cylinder, several connecting long rods, a movable ring, an external thread sleeve, an upper internal thread ring, a lower internal thread ring, a connecting rod base, and several petal-shaped bottom seals plate and several connecting short rods; rotate the upper and lower internal thread rings at the same time, so that the movable ring moves up or down along the axis of the plexiglass sampling cylinder, and then pulls or pushes the corresponding petal-shaped bottom by connecting the long rods and connecting short rods Seal the plate so that the petal-shaped bottom seal plate is opened and away from the bottom of the plexiglass sampling cylinder or forms a closed hollow hemispherical structure at the bottom of the plexiglass sampling cylinder. The invention can effectively keep the layered physical form of the collected water samples and bottom sediments of the river channel unchanged, and realize the original collection, thereby improving the scientificity of research and the accuracy of 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.

Images