| 摘要 |
The present invention is a manhole for a water valve with a function of preventing sewage influent, and more particularly to a new technology, which prevents sewage from flowing into a manhole and, when a small amount of sewage flows inside or condensation generates, simply drains it to the outside so that a valve is effectively read, and generation of bad smell is restricted. According to the present, although sewage flows inside through a crack between a supporting frame of a manhole and a cover of the manhole, the sewage is discharged through a sewage discharging passage formed between a supporting frame supporting holder and a manhole entrance. A small amount of sewage and condensation liquid water may be discharged outside through a plurality of sewage drain pipes attached at a lower end of the manhole for a water valve. A water distribution system is connected to the inside of the manhole for a water value while passing through water distribution system supporting washers attached at both sides of the manhole for a water value and a water distribution system airtight washer coupled to the water distribution system supporting washers, thereby preventing underground soil water from flowing inside of the manhole through a contact portion between the water distribution system and the manhole for a water vale. |
