Variable-angle piston type water quality sampler

Abstract

The invention relates to a variable-angle piston type water quality sampler, which comprises a straight rod, wherein the top end of the straight rod is fixed on a fixed disc, the bottom end of the straight rod is connected with a first sleeve through a shaft, scales are arranged on the straight rod, the bottom end of a push-pull rod is fixed on the first sleeve, the top of the push-pull rod passes through a hole arranged on the fixed disc and can upwards and downwards move along the hole, a second sleeve is sheathed in the first sleeve, through holes are respectively arranged at the bottoms of the first sleeve and the second sleeve, a bottle body of a sampling bottle is inserted into the second sleeve, a piston head is arranged in the sampling bottle, the piston rod is a hollow pipe, one end of the piston rod is connected with the piston head, the other end of the piston rod sequentially passes through the through holes arranged at the bottoms of the second sleeve and the first sleeve and form a water inlet, and a part of the piston rod positioned between the bottoms of the second sleeve and the first sleeve is sheathed with a spring. The transverse sampling and the vertical sampling can be combined into a whole, and the variable-angle flexible sampling between 0 and 90 degrees is realized.

Description

technical field [0001] The invention relates to a water quality sampler, in particular to a variable-angle piston type water quality sampler. Background technique [0002] Most of the existing artificial samplers are samplers that can sample at different depths vertically, but not much consideration is given to sampling water bodies with shallow rivers or rivers whose depth is smaller than the height of the sampler. In the process of launching the existing artificial sampler, the upper and lower caps of some sampling bottles are opened, and the sampling bottles reach the designated sampling position after passing through each water layer, which may easily cause pollution of water samples to be taken in different water layers; some sampling bottles are sealed After delivery to the designated location, although the pollution of water samples to be taken from different water layers is avoided, the air sealed in the sampling bottle does not consider the interference of the sampl...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing artificial samplers are samplers that can sample at different depths vertically, but there are not many considerations for sampling water bodies with shallow rivers or rivers whose depth is smaller than the height of the sampler

In the process of launching the existing artificial sampler, the upper and lower caps of some sampling bottles are opened, and the sampling bottles reach the designated sampling position after passing through each water layer, which may easily cause pollution of water samples to be taken in different water layers; some sampling bottles are sealed After delivery to the designated location, although it avoids the pollution of water samples in different water layers, it does not consider the interference of the air sealed in the sampling bottle on the sampling water body, which affects the accuracy of water quality analysis results

The underwater collection status of the existing samplers is not easy to grasp, and it is not intuitive to judge whether the sampling bottle is full

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