| 摘要 |
<p>A fire fighting flying vehicle comprises of an aircraft and a fire fighting device. The fire fighting device is fixed on the bottom of the aircraft and composed of a connecting arm, an extending arm and an operating arm, wherein the lower end of the connecting arm is articulated to the extending arm. A hydraulic cylinder is connected between the connecting arm and the extending arm. The front end of the extending arm is articulated to the operating arm. A motor and a semilunar gear are provided between the front end of the extending arm and the operating arm. The motor drives the semilunar gear rotating through a pinion. The motor, the pinion and the semilunar gear are mounted within the U-shaped extending arm. The semilunar gear is fixed to the operating arm and rotated along with the operating arm. There are cables provided on the operating arm for securing a spraying gunjet, which are connected to a tank in the helicopter through a high-pressure water-spraying machine via water pipes. The fire fighting flying vehicle can extinguish fire effectively, such as forest fire, mountain fire and tall building fire.</p> |
