Drilling underground water intaking device

Abstract

The invention provides a drilling underground water intaking device. The device comprises a water intaking cylinder. The bottom end of the water intaking cylinder is closed and sealed, and a water intaking inlet hole is formed in the side wall of the water intaking cylinder; and an outer sleeve sleeves the outer portion of the water intaking cylinder and slides up and down in the axial direction of the water intaking cylinder. The drilling underground water intaking device is exquisite in shape, simple and reliable in structure, light in weight, easy to carry and high in reliability of successful water intaking.

Description

technical field [0001] The invention relates to a borehole groundwater water extractor, which belongs to the technical field of water extractors and is suitable for extracting groundwater in boreholes. Background technique [0002] After drilling, it is usually necessary to take groundwater for chemical analysis, and because the water fetcher is empty, the water fetcher cannot overcome the buoyancy of the water and is submerged underwater. At present, when groundwater is taken, the lower end is generally open and equipped with a water fetcher with a flap door for water intake, but because the flap door often cannot be reset in time, it will cause water leakage and cause water intake failure. The Chinese patent application number 2017201016665 discloses a water extractor for collecting groundwater at different depths, the Chinese patent application number 2017209992177 discloses a groundwater fixed-depth water sampler, as disclosed in the Chinese patent application number 201...

AI Technical Summary

Problems solved by technology

[0002] After drilling, it is usually necessary to take groundwater for chemical analysis, and because the water fetcher is empty, the water fetcher cannot overcome the buoyancy of the water and is submerged underwater

At present, when groundwater is taken, the lower end is generally open and equipped with a water fetcher with a flap door for water intake, but because the flap door often cannot be reset in time, it will cause water leakage and cause water intake failure. The Chinese patent application number 2017201016665 discloses a water extractor for collecting groundwater at different depths, the Chinese patent application number 2017209992177 discloses a groundwater fixed-depth water sampler, as disclosed in the Chinese patent application number 2018203735959 A kind of water fetcher for underground water; there is also a water fetcher with counterweight, that is, a steel block is installed in the water fetcher, and the water fetcher sinks to fetch water by relying on gravity greater than buoyancy, but this kind of water fetcher is heavy and inconvenient to carry, such as the application number 2018200448079 A device for taking groundwater samples for field surveys disclosed by a Chinese patent

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