Fixed water quality detection multilayer sampling device

Abstract

The invention provides a fixed water quality detection multilayer sampling device which comprises a fixed annular shell fixedly connected to the ground, a circular shell close to the upper side is fixedly connected to the inner wall of the fixed annular shell, three sliding grooves distributed at equal intervals are formed in the inner wall of the fixed annular shell, and a lifting device is arranged in the device; the lifting device comprises a motor which is fixedly connected with the lower end surface of the annular shell, and the lower side of the motor is in power connection with a threaded rod; according to the device, the depth of the sampling device can be judged through forward and reverse rotation of the motor and by observing the dial plate, water at a certain depth can be conveniently sampled, through pressing a sampling button, the sampling device is controlled to sample the water quality, meanwhile, the device can conduct excessive sampling on the same water level, errorscaused by the sampling process to detection data are reduced, and after the sampling shell rises to be separated from the water surface, the drainage device can collect water quality samples.

Description

technical field [0001] The invention relates to the technical field of water quality sampling, in particular to a multi-layer sampling device for fixed water quality detection. Background technique [0002] Collect water samples from polluted water bodies and analyze and measure them to obtain the basic data of water body pollution. For river sampling, the river is usually divided into several river sections such as upstream, midstream, and downstream. Sampling the central axis of the river and the upper, middle, and lower layers separately requires water quality sampling at the same water level and at no water level. It is difficult to control the accuracy of sampling by manual operation, and it is cumbersome and complicated to operate. Contents of the invention [0003] Aiming at the deficiencies of the above-mentioned technologies, the present invention proposes a multi-layer sampling device for fixed water quality detection, which can overcome the above-mentioned defic...

AI Technical Summary

Problems solved by technology

[0002] Collect water samples from polluted water bodies and analyze and measure them to obtain the basic data of water body pollution. For river sampling, the river is usually divided into several river sections such as upstream, midstream, and downstream. Sampling the central axis of the river and the upper, middle, and lower layers separately requires water quality sampling at the same water level and at no water level. It is difficult to control the accuracy of sampling by manual operation, and it is cumbersome and complicated, and it is not easy to operate.

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