Drilling tool for surveying hydrology and water resources
The utility model discloses a drilling tool for surveying hydrology and water resources, which belongs to the technical field of water resource surveying and comprises a bottom plate, an extension rod is arranged at the bottom of a drilling rod, the extension rod and the drilling rod are integrated,...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Online-Zugang: | Volltext bestellen |
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| Zusammenfassung: | The utility model discloses a drilling tool for surveying hydrology and water resources, which belongs to the technical field of water resource surveying and comprises a bottom plate, an extension rod is arranged at the bottom of a drilling rod, the extension rod and the drilling rod are integrated, a clamping groove is formed in the periphery of the bottom end of the extension rod, an inserting groove is formed in the top end of the drilling rod, and a clamping rod is arranged on the periphery of the top end of the drilling rod. A clamping rod is arranged at the top end of the drill rod, a tightening spring is arranged at the middle end of the clamping rod, a groove is formed in the top end of the drill rod, the tightening spring is arranged in the groove, the length of the groove is larger than that of the tightening spring, a clamping block is arranged at the bottom end of the clamping rod, and the clamping block extends into the inserting groove. During disassembly, the clamping rods are pulled outwards, |
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