Locking mechanism with actuation ring

A locking mechanism for locking to grooves of a circular bore or member, comprises a main body 118" with a plurality of locking members 119" arranged along a perimeter of the main body. The locking members are rotatably supported on the main body about is rotation axes 117t". An actua...

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Bibliographic Details
Main Authors ANDRA© M SMITH, LASSE E AARNES
Format Patent
LanguageEnglish
Published 04.07.2012
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:A locking mechanism for locking to grooves of a circular bore or member, comprises a main body 118" with a plurality of locking members 119" arranged along a perimeter of the main body. The locking members are rotatably supported on the main body about is rotation axes 117t". An actuation ring 117a" comprises a plurality of engagement elements 117d" which extend into engagement slots 117e" of the locking members, so as to rotate the locking members. The locking members according to their rotational position can assume a locking position, wherein their perimeter extends a first distance radially out from the locking mechanism or radially inwardly from the locking mechanism, and an unlocked position, wherein said distance is shorter than the first distance or non-existent, as the distance from the axes 117r of the locking members to their perimeter varies along the perimeter.
Bibliography:Application Number: GB20120004555