Water quality sampling device

Abstract

The invention discloses a water quality sampling device. The water quality sampling device is characterized by comprising a telescopic arm, a fixed frame, a sampling bottle and a pull rope, wherein the telescopic arm has variable length and certain rigidity; the fixed frame is arranged on one end of the telescopic arm; the sampling bottle is arranged in the fixed frame and composed of a bottle body and a bottle cap; the pull rope is paved along the telescopic arm, and one end of the pull rope is connected to the bottle cap of the sampling bottle; the telescopic arm can be arranged into two mutually perpendicular segments and is coated with different colors in segments; the opened end of the bottle body and the bottle cap of the sampling bottle are respectively provided with magnets; and the fixed frame is provided with a bottle cap limit rod. The invention has the advantages of simple structure, convenience for operation, practicability, scientific and accurate sampling, easy control of sampling depth, variable length and suitability for fixed-depth sampling; and in the invention, the telescopic arm is coated with different colors in segments, thereby being convenient for observing at a long distance and confirming the depth of the sampling bottle stretching into water.

Description

technical field [0001] The invention relates to a sampling device, in particular to a water quality sampling device for taking water samples. Background technique [0002] At present, when water quality monitors take water quality samples, the commonly used sampling tools are buckets, rope sampling bottles, upright water collectors, etc. But, there are certain problems when using these tools to sample, for example: 1. It is not suitable for sampling at a fixed depth. The water device moves along the direction of the water flow. Because it is difficult to control the depth of sampling, the monitoring results are often unrepresentative, and the scale on the rope is difficult to see clearly from a long distance; ② Sometimes the sampling position needs to be at a certain distance from the shore. If the current tools are used to take water samples, most of them need to be realized by means of bridges or ships, which increases the consumption of manpower and material resources to...

AI Technical Summary

Problems solved by technology

But, there are certain problems when using these tools to sample, for example: 1. It is not suitable for sampling at a fixed depth. The water device moves along the direction of the water flow. Because it is difficult to control the depth of sampling, the monitoring results are often unrepresentative, and the scale on the rope is difficult to see clearly from a long distance; ② Sometimes the sampling position needs to be at a certain distance from the shore. If the current tools are used to take water samples, most of them need to be realized by means of bridges or ships, which increases the consumption of manpower and material resources to a certain extent, and cannot save procedures and time; ③ In order to ensure that the water samples taken are at the specified depth Water sample, when the water sample is filled with the sampling bottle, it is often necessary to close the sampling bottle and then take it out of the water, so the existing sampling bottle is often designed with a relatively complicated structure such as a piston, a connecting rod, and a one-way valve. Invisibly increased cost input

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