Spiral drill rod

The utility model provides a spiral drill rod which comprises a drill rod body, a spiral blade arranged on the outer ring of the drill rod body and a drill bit located at the bottom end of the drill rod body, and an edge covering structure used for preventing soil from being separated from the outer...

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Bibliographic Details
Main Authors LAN SHIZHONG, YIN WEICHAO, XU JINPENG, WEN SEN
Format Patent
LanguageChinese
English
Published 19.07.2022
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Summary:The utility model provides a spiral drill rod which comprises a drill rod body, a spiral blade arranged on the outer ring of the drill rod body and a drill bit located at the bottom end of the drill rod body, and an edge covering structure used for preventing soil from being separated from the outer side wall of the drill rod body is arranged on the section, close to the drill bit, of the spiral blade. The drilling rod lifting device has the advantages that most of soil can be prevented from being separated from the drilling rod during drilling and rod lifting, so that the cleanliness in a drilled pile hole is higher. 本实用新型提供一种螺旋钻杆，包括钻杆主体、设置在钻杆主体外圈上的螺旋叶片以及位于钻杆主体底端的钻头，靠近所述钻头一段的螺旋叶片上设有用于防止泥土脱离钻杆主体外侧壁的包边结构；本实用新型的优点在于在钻孔提杆时能够避免泥土大部分的脱离钻杆，使得钻孔后的桩孔内清洁度更高。
Bibliography:Application Number: CN202220948988U