ANCHORING LOCK FOR CABLE RETAINING IN WELL Russian patent published in 2006 - IPC E21D21/00 

FIELD: mining, particularly cable securing devices used for cable bolt or tensioning member mounting for mine and underground structure supporting.

SUBSTANCE: anchoring lock comprises beam with annular thrust, threaded end and nut screwed on the threaded end. The nut is connected with eccentric clamping washer by means of safety fixer. The safety fixer is made as resilient ratchet member. Anchoring lock also has eccentric bush of granular material and plastic filler. The eccentric bush is arranged between eccentric clamping washer and eccentric support washer and cooperates with the washers. Eccentric bush, support washer and clamping washer are provided with at least one through longitudinal orifice adapted to receive cable to be retained in well. Another beam end has curvilinear torque transfer surfaces, which are symmetric about axis of beam rotation.

EFFECT: increased cable fixation reliability and possibility to construct cable bolt in well due to cable location inside structural members, as well as decreased annular gap between eccentric bush, support washer, clamping washer and well wall.

3 cl, 6 dwg