Pneumatics drive formula vacuum pump

The utility model relates to a pneumatics drive formula vacuum pump, including the cylinder body that has the inflow cabin that makes the air the flow into row air cabin outside with making air escape, be equipped with multiple suction cabin between the air cabin with arranging flowing into the cabin, and by the inflow port on flowing into the cabin lateral wall, at the ejector that sucks cabin side wall mounting, establish the vacuum formation line that blast pipe on row air cabin lateral wall etc. Is formed with the serial -type, but foretell blast pipe is with axial mode of rotating and the lateral wall swing joint that arranges air cabin, and the periphery UNICOM of every blast pipe the exhaust hole of at least one. The utility model discloses the smooth and easy discharge of row air cabin air can also be ensured to produced noise in the time of can reducing discharge compressed air effectively through rotatable exhaust port, improves holistic vacuum. 本实用新型涉及种空压驱动式真空泵，包括具有使空气流入的流入舱和使空气排出外部的排气舱的缸体，在流入舱和排气舱