| 摘要 |
A connection structure for an underground wire is provided to prevent an underground wire from being damaged by informing an administrator of a fire inside a manhole through wireless communication. A supporting unit(10) is fixed in a bottom surface of a manhole(1). A protector(20) reciprocates in the supporting unit vertically. The protector protects the underground wire. A spring supports the protector elastically. A switch(30) is turned on or off by the protector. A fire sensor(40) is installed in the manhole to sense the fire. A controller(50) outputs an emergency signal according to an operation signal of the switch. The controller outputs the operation signal according to the fire sensing signal of the fire sensor. A transmission unit(60) transmits the emergency signal and the fire sensing signal of the controller to the outside. A first hydrant(70) sprays the fire-fighting liquid to a fire area through a spray valve. A pair of guide rollers(80) guide the underground wire. |
