Gas circuit control system for commercial vehicle with lifting shaft

The utility model discloses an air path control system for a commercial vehicle with a lifting shaft. The air path control system comprises an air storage cylinder, a pressure reducing valve, a two-position five-way electromagnetic valve, a switch, a lifting air bag, a bearing pressure limiting valve, a bearing air bag, a lifting air chamber and a relay valve, the number of the pressure limiting valves is two, and the two pressure limiting valves are a lifting pressure limiting valve and a bearing pressure limiting valve respectively. The air pressure of the bearing air bag and the air pressure of the lifting air bag are controlled through independent pressure reducing valves, so that the bearing precision of the vehicle lifting bridge is higher, and inflation and deflation are faster; the two-position five-way electromagnetic valve and the relay valve are adopted for control, the two-position five-way electromagnetic valve has a self-locking function, and the working state cannot be changed due to sudden pow