| 摘要 |
The present invention relates to a water jetting apparatus for an automatic car wash machine, which cleans an external car body and a lower car body of a car with high pressure water before the car is brushed by a roll-over car wash machine. According to the present invention, the water jetting apparatus, in the automatic car wash machine having an external cleaning part and a lower cleaning part, comprises: a washing water supply pump spraying washing water at a high pressure to clean; first and second washing water supply pipes bifurcated at a water discharge pipes of the washing water supply pump; first and second solenoid valves installed on the first and second washing water supply pipe; and the external cleaning part and the lower cleaning part respectively connected to the first and second washing water supply pipes to enable the washing water to be jetted though spray nozzles, wherein the first and second solenoid valves are controlled by a sensing signal of a sensor equipped in the lower cleaning part. |
