Salvage spear

The utility model relates to the technical field of salvage devices, in particular to a salvage spear. The salvage spear comprises an upper connector, a salvage barrel and an annular baffle disc, wherein an annular groove is formed in the outer side of the upper portion of the salvage barrel; the an...

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Bibliographic Details
Main Authors YU YONGJIANG, MO XUBO, WANG CHAOSU
Format Patent
LanguageChinese
English
Published 02.04.2014
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 relates to the technical field of salvage devices, in particular to a salvage spear. The salvage spear comprises an upper connector, a salvage barrel and an annular baffle disc, wherein an annular groove is formed in the outer side of the upper portion of the salvage barrel; the annular baffle disc is located on the annular groove; the diameter of the annular baffle disc is greater than that of the upper connector; the inner side of the lower end of the upper connector and the outer side of the upper end of the salvage barrel are fixedly installed together and compress the annular baffle disc on the annular groove; at least one salvage hook is fixed to the outer side of the salvage barrel from top to bottom; a conical guide body is fixed to the upper end of the salvage barrel. The salvage spear is reasonable and compact in structure, and convenient to use; in the process of salvaging cables and steel wire ropes, when the annular baffle disc is arranged inside a casing pipe or the annular baf
Bibliography:Application Number: CN20132568827U