INSPECTION WELL OF CABLE DUCT, METHODS OF INSERTING A PIPE INTO THE WELL (OPTIONS) AND AN ADAPTER FOR IMPLEMENTING THE METHOD Russian patent published in 2022 - IPC H02G9/10 

FIELD: cable channels.

SUBSTANCE: technical solutions group relates to the construction of manholes of cable communication channels and cable channels suitable for them. The cable duct manhole includes a body with a neck, walls and a bottom, at least one through round hole is made in at least one wall of the body, a spiral groove is made on the inner surface of the hole for a threaded connection with a spiral pipe. Methods for introducing a pipe into a manhole are characterized in that a segment of a polymer spiral pipe is screwed into an insert, a spiral coupling is screwed onto the pipe segment or into the main passage pipe from the outside, and then the coupling is screwed in such a way that one part of the coupling is located on the pipe segment, and the other - on the main pipe. Or, an adapter is screwed into the insert located in the hole of the well body from the inside. An adapter for inserting a spiral pipe into a manhole of a cable duct is a hollow cylinder, on the outer surface of which elements of a spiral thread are made, while one of the ends of the adapter has a flange.

EFFECT: simplification of the process of introducing a spiral polymeric cable duct pipe into the side recesses of the manhole walls.

10 cl, 11 dwg