| 摘要 |
PROBLEM TO BE SOLVED: To provide a fire hydrant device that facilitates the attachment and detachment of a fire hydrant door in the case of maintenance, and eliminates the need for regulating a tension. ! SOLUTION: A fire hydrant device 1 includes an on-off valve 11 provided in a valve box 11a of a water supply pipe 12 in a housing 3, and a water discharge hose 13 connected to the water supply pipe 12. The device is provided with an opening/closing lever 23 for opening/closing the on-off valve 11, and a water discharge nozzle 14 provided on the tip of the water discharge hose 13, in an inner surface of a fire hydrant door 4 of the housing 3. The device includes a gearbox 21 for supporting a rotating shaft 17 fixing the opening/closing lever 23 in the inner surface of the fire hydrant door 4. In the gearbox 21, a first bevel wheel connected to the rotating shaft 17 is engaged with a second bevel wheel fixed in a shaft member. When the opening/closing lever 23 is rotated, the shaft member is rotated through |
