| 摘要 |
The present invention relates to a PTO fail safe system of a fire engine, which includes: a PTO assembly (130) which is connected to a manual transmission (110); a vehicle air tank (111) which is connected to the PTO assembly (130) through an air supply line (112); an emergency valve (140) which is arranged on the air supply line (112); a pressure sensor (150) which is connected to the air supply line (112); a parking brake (160) which is arranged in a vehicle; a fire extinguishing pump (170); a vehicle indoor/outdoor warning light (181) which is arranged for a visual warning to the inside or outside of the vehicle; a vehicle indoor/outdoor horn (182) which is arranged for an auditory notice to the inside or outside of the vehicle; and a control module (190) which controls the operation of the vehicle indoor/outdoor warning light (181) and the operation of the vehicle indoor/outdoor horn (182) based on a signal of the pressure sensor (150). [Reference numerals] (110) Manual transmission; (111) Vehicle air tank; (150) Pressure sensor; (160) Vehicle brake; (170) Fire extinguishing pump; (181) Vehicle indoor/outdoor warning light; (182) Vehicle indoor/outdoor warning light; (190) Control module; (AA) Emission to air; (BB) Flow in case of an operation; (CC) Flow in case of a return |
