DEVICE FOR TRENCHLESS TECHNOLOGY USING THE PUNCTURE METHOD Russian patent published in 2018 - IPC E02F5/18 

FIELD: construction.

SUBSTANCE: invention relates to construction, namely, to devices intended for trenchless technology, and may find its application for the construction of hidden passages during the construction of pipelines, underground cable communication lines and power transmission lines. Device for trenchless technology of laying pipelines using the puncture method comprises a hollow working tip having a conical shape, inside which the pipeline to be laid is located, the front end of which has a shape corresponding to the shape of the working tip, wherein the hollow working tip is connected to the pipeline to be laid by means of a ball bearing which is located at the top of the cone of the operating tip from its inner side and its rear end forms a spherical thrust bearing with the front end of the pipeline to be laid. Spherical thrust bearing has a piezoceramic drive which is fixed to the front end of the pipeline to be laid and ensures the rotation of the spherical thrust bearing, as well as the ball joint in the planes perpendicular to the axis of the pipeline being laid. Device also comprises a feeder and a vibrator fixed in the hollow working tip by means of brackets, extending through the slots formed in the wall of the pipeline to be laid.

EFFECT: device improves the accuracy of trenchless technology of laying pipelines and allows to lay pipelines with a specified curvilinear direction of punctures.

1 cl, 3 dwg