A water sampling device capable of automatic sealing

Abstract

A water sampling device capable of automatic sealing is disclosed. The device comprises a telescopic arm. One end of the telescopic arm is provided with a fixing box. A sampling bottle is disposed in the fixing box. The upper part of the sampling bottle is sealed. The bottom of the sampling bottle is provided with a hole. A small sheet capable of being opened and closed up and down freely is disposed at the hole, and when the small sheet is closed, the hole is sealed. According to the device, the small sheet capable of being opened and closed up and down freely is disposed at the hole, the design principle of the small sheet is similar to closing and opening of cardiac valves, a hydraulic principle is utilized, when the device sinks from a water surface, the small sheet is automatically opened and when the device is lifted, the small sheet is automatically closed and sealed under the action of pressure of water in the bottle, thus preventing liquid leakage. The device is simple and convenient to operate and good in sealing performance.

Description

technical field [0001] The invention relates to an automatically sealed water quality sampler, which belongs to the technical field of environmental detection. Background technique [0002] With the rapid development of social economy, the problem of environmental pollution is becoming more and more prominent, especially the problem of water environment pollution is showing the trend of regional expansion, pollution diversification and serious degree. In the face of global environmental problems and the increasingly severe water crisis, water resource protection has become an urgent problem facing human beings. In order to strengthen the monitoring of water environment quality, grasp the current situation of water quality in a timely manner, determine the temporal and spatial distribution of pollutants in water bodies, and then trace the source of pollutants, pollution channels and their impact on human health, it is necessary to conduct a large number of on-site water quali...

AI Technical Summary

Problems solved by technology

However, the sampling bottle of the existing water quality sampling device has poor airtightness and is easily affected by water quality at different depths. Even if the bottle cap is provided, the bottle cap needs to be pulled by a pull rope, and the operation is relatively complicated.

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