Concrete surface cylinder type spiral soil digging drill bit for processing long spiral empty hole section

The embodiment of the utility model provides a concrete surface barrel type spiral soil digging drill bit for processing a long spiral empty hole section. A spiral disc is arranged in the drill bit, anti-slip strips are arranged on the surface of the spiral disc, the spiral disc extends out of the b...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	JU WENQI, HU PEIQIANG, AO XIAOPING, HUANG LEI, XU GUXING, LUO PINGNAN, ZHANG XIANLIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
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