| 摘要 |
The present invention relates to a fixing device for a manhole cover. More specifically, the purpose of the present invention is to provide the fixing device for a manhole cover preventing weakening of a locked state of a manhole cover due to corrosion of a coupled portion. The present invention comprises: a coupling bolt (11) composed of a bolt head (11) and a leg (112) which is extended toward a lower side of the bolt head (111) and has a pin hole (114) and the packing portion (113); a fastening bolt (12) composed of a fastening head (121) coupled to the lower side of the leg (112) of the coupling bolt (11) and a fastening leg (122) extended from the fastening head (121); and a fixing nut (13) coupled to the fastening leg (122) of the fastening bolt (12). The fastening bolt (12) is fixated to an auxiliary device of the manhole cover, and the coupling bolt (11) is fixated to the fastening bolt (12) through a coupling hole formed on the manhole cover. |
