A water body automatic sampling device

Abstract

The invention relates to an automatic water sampling device, which effectively solves the problems of inconvenient manual sampling, automatic sampling cannot fully reflect the actual situation of the water body, and insufficient sampling accuracy; The reel takes up the rope, and the second reel puts the rope, so that the time interval for collecting samples is proportional to the flow rate of the river; the signal transmitted by the Hall sensor controls the start and stop of the motor, and when the motor drives the second shaft to rotate, it starts To collect samples, the second reel takes up the rope and the first reel puts the rope, so that the impeller rotates in the opposite direction to the previous direction, which not only stirs the nearby river water so that there is no stratification of the river water, but also makes the impeller wound The floating objects are automatically separated from the impeller, and every time the motor is started and stopped, the planetary gear train drives the first sleeve to rotate at a certain angle and a bottle of sample is collected.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to an automatic water sampling device. Background technique [0002] Rivers will have wet seasons, normal water seasons, and dry seasons. The time intervals for sampling river water in different periods are different. The flow rate of river water in the wet season is faster than that in the normal and dry seasons. Therefore, the sampling time in the wet season The interval should be shortened accordingly, and the flow rate of the river water changes rapidly. Manual sampling often cannot accurately control the sampling interval. Most of the automatic sampling devices take samples at the set time interval; The impeller, the impeller rotates under the impetus of the river water, and the floating objects such as aquatic plants in the river water are easily entangled on the impeller, which affects the rotation of the impeller and makes the impeller unable to accurately reflect the flow ra...

AI Technical Summary

Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an automatic water sampling device, which effectively solves the problems of inconvenient manual sampling, automatic sampling that cannot fully reflect the actual situation of the water body, and inaccurate sampling.

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