| abstract |
The invention provides a boom system and an operating vehicle. The arm support system comprises: an arm; the two arms are at least partially sleeved in the one arm; the driving device is partially arranged in the two arms and is respectively connected with the first arm and the second arm, and the second arm stretches relative to the first arm through the driving device; the telescopic water pipe is at least partially arranged in the two arms, wherein the telescopic water pipe extends or shortens along with the two arms. According to the technical scheme, the cables, the telescopic water pipes and other components are effectively built in the boom system, occupied space outside the boom system is reduced, the possibility that the cables, the water pipes and other components are scratched and wound is reduced, the use convenience of the boom system is improved, and the sagging of the cables, the drag chains, the water pipes and other components caused by gravity is reduced. |