Adjustable water body detecting and sampling device based on pressure change principle

Abstract

The invention discloses an adjustable water body detecting and sampling device based on a pressure change principle, and relates to the technical field of environment quality detection equipment. Thedevice comprises a sampling pipe. A liquid storage cavity is formed in the middle of the left side of the sampling pipe. The left side of the liquid storage cavity is movably connected with a liquid sampling piston. The left side of the liquid sampling piston is fixedly connected with a blocking block matched with the sampling pipe. The right side of the liquid sampling piston is fixedly connectedwith a screw rod movably connected with the middle of the sampling pipe. The bottom of the screw rod is meshed with a screw block movably connected with the inner wall of the sampling pipe. Accordingto the adjustable water body detecting and sampling device based on a pressure change principle, through cooperative use of the liquid sampling piston and a motor, after the sampling device is movedto a corresponding position, the sampling piston in the sampling device can complete sample extraction under the action of the motor, so that an automatic sampling effect is achieved, sampling is accurate and convenient, the sampling device does not need to dive to the sampling depth, and the sampling risk is avoided.

Description

technical field [0001] The invention relates to the technical field of environmental quality detection equipment, in particular to an adjustable water body detection and sampling device based on the principle of pressure change. Background technique [0002] Environmental quality detection is a technology closely related to daily life, such as water body detection. Most of the detection of water body quality is related to drinking water health and sewage discharge. It has a strong purpose, and water body detection is of great significance for environmental protection. Before testing, the water body needs to be sampled. [0003] The current sampling device is very simple to use. The testing personnel can directly collect the water body with the detection device. However, in some collection processes, the shortcomings of the sampling device will be exposed. For example, the current sampling device cannot automatically sample, and can only rely on detection. Personnel take sam...

AI Technical Summary

Problems solved by technology

[0003] The current sampling device is very simple to use. The inspectors can directly collect the water body with the detection device. However, in some collection processes, the shortcomings of the sampling device will be exposed. For example, the current sampling device cannot automatically sample and can only rely on detection. Manual sampling by personnel, and water body detection sometimes requires sampling of samples at the bottom. At this time, the detection personnel can only hold the sampling device and dive to the bottom for sampling. At this time, the sampling process is more complicated and has certain risks. It poses a threat to the life of the testing personnel. At this time, it highlights the shortcomings of the sampling device that cannot realize automatic sampling because it is too simple.

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