structure of manhole box for cable with easy construction

摘要

The present invention relates to a cable manhole box structure that is easy to construct, and more specifically, by manufacturing the manhole outside and attaching the manhole to the part to be buried, it shortens the other time for hardening and also the cable is introduced into the manhole. To the manhole structure along the outer surface of the cable to form a protruding manhole side wall where the waterproof tube is installed to prevent the inflow of rainwater or groundwater into the manhole. It is about.;An upper block 12 having a circular hole 26 formed thereon, a side wall block having a plurality of waterproof tubes 18 into which the wiring tube 24 is inserted, and a lower block 16 supporting the side wall block from below; In the conventional manhole 10 is combined;;A plurality of hooks 34 are mounted on the upper block 12, and the upper sidewall block 30 coupled to the upper block 12 and the lower sidewall block 32 coupled to the lower block 16 are bonded to the adhesive 28. ),;Easy to install, characterized in that the projecting portion 22 is formed by protruding a portion of the side wall block on which the waterproof tube 18 into which the cable 20 penetrates the cable 20 is inserted. Cable manhole box structure.