Karst area field water sample collection device

Abstract

The invention discloses a karst region field water sample collection device, and the device comprises a sampling cylinder, and the sampling cylinder comprises a cylinder body with an open bottom end and a closed top end; an exhaust hole is formed in the top end of the cylinder body, a spacer ring is fixedly connected to the interior of the cylinder body, and the cylinder body is divided into an upper containing cavity and a lower containing cavity by the spacer ring; a sealing plate is arranged on the spacer ring, the outer wall face of the sealing plate is matched with the inner wall face ofthe spacer ring, a sealing ring is arranged between the sealing plate and the spacer ring, and the bottom of the sealing plate is connected with a perforated bottom plate slidably installed in the lower barrel containing cavity through a connecting rod; a floating ball with the size capable of completely blocking the exhaust hole in the top end of the barrel is arranged in the upper containing cavity of the barrel, a guide rod is arranged on the floating ball, and the other end of the guide rod extends out of the barrel through the exhaust hole. The method is simultaneously suitable for sampling underground karst water and karst area field surface karst water, and has the advantages of high sampling success rate and high efficiency.

Description

technical field [0001] The invention relates to a water sample collection device, in particular to a field water sample collection device in a karst area. Background technique [0002] In the process of karst hydrogeological investigation, the collection of water samples is very important, which is an important link in the study of hydrogeological conditions in karst areas. The collection of water samples in karst areas is usually divided into surface karst water and underground karst water. Among them, underground karst water is mainly collected by drilling or sampling by placing a sampler. In actual sampling, the boreholes or wells are generally deep, and it is impossible to directly reach into the water body for sampling; Rely on the slight inclination of the plastic collection bottle (barrel) to collect a little water sample, while the existing large and expensive collector requires a lot of manpower, and it is extremely inconvenient to carry and operate, so it is not s...

AI Technical Summary

Problems solved by technology

However, in the technical solution described in the application, the water sample collection device needs to be completely submerged in the water to sample. Even if the water intake cup is made of transparent plastic, it is difficult to tell whether the water sample is full of the cup body; and the water inlet hole of the water sample collection device cannot Automatically closed, if you encounter obstacles during the return journey after sampling, you may not be able to obtain water samples or obtain a sufficient amount of water samples

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