| 主权项 |
1. A dual-gauge air pump comprising:
a barrel; a piston, being installed in the barrel; a pumping shaft, having one end fixed to the piston and an opposite end jutting out one end of the barrel; a gauge casing, having one end fixed to an opposite end of the barrel and being provided with two round dial pressure gauges, in which one is a high-pressure gauge and the other is a low-pressure gauge, wherein the two pressure gauges are on each other's back, facing the exterior, and communicated with the barrel through respective air paths; and a nozzle casing, being pivotally connected to an opposite end of the gauge casing and freely rotatable through 360 degrees, containing therein a nozzle assembly, and being communicated with the barrel through an air path. |
