DEVICE FOR COMPACTING SOIL IN TRENCH UNDER PIPELINE Russian patent published in 2005 - IPC

FIELD: construction engineering.

SUBSTANCE: invention relates to methods and devices used for repair of underground pipelines and it can be used for compacting soil at sides and under pipelines of large diameter at repairing with digging down. Proposed device has single-bucket excavator as base machine whose working equipment is source of compacting motions, mechanism to transmit said motions to soil secured to dipper stick and working members with compacting plates. Mechanism to transmit compacting motions to soil is made in form of cylindrical ram connected to dipper stick of excavator and provided with fork on lower end whose eyes are connected with saddle. Ram is movable enclosed by cup with eyes on its upper end carrying rocker with tie-rods. Working members are made in form of two opposite bell cranks provided with compacting plates on ends. Bell cranks are hinge-connected with eyes of fork by means of common axle. Bell cranks are hinge-connected with tie-rods of rocker, and eyes of cup are hinge-connected with shackle of excavator dipper stick by means of tire-rod.

EFFECT: provision of guaranteed compaction of soil under large-diameter pipeline.

3 dwg