Overhead working truck loading and unloading automatic interlocking control system

The utility model discloses an overhead working truck getting-on and getting-off automatic interlocking control system which comprises a getting-off supporting leg control system and a getting-on armsupport control system, and the getting-off supporting leg control system comprises a hydraulic pump, a getting-off valve set and a supporting leg oil cylinder. The upper vehicle arm support control system comprises an upper vehicle valve set, a variable-amplitude oil cylinder, a telescopic oil cylinder and a swing mechanism motor. The lower vehicle valve group comprises an upper and lower vehicleoil path switching valve, a supporting leg oil cylinder telescopic control valve and a plurality of groups of supporting leg oil cylinder selection valves; the upper vehicle valve set comprises a load sensitive opening LS electric control unloading valve, a variable-amplitude oil cylinder control valve, a telescopic oil cylinder control valve and a cantilever crane rotation control valve. Automatic interlocking control ov