Patent ID: 8869819

Claim:
A bi-directional inflating device, comprising: a handle rod, comprising an inner tube and an outer tube that is movably fitted over the inner tube; an adapter tube, having an inlet communicating with the inner tube and two outlets communicating with the inlet; two inflating fittings disposed at the outlets of the adapter tube respectively, each of the inflating fittings having an outer surface, two grooves recessed from the outer surface and a passage communicating with the adapter tube, and each of the grooves being formed with a through hole communicating with the passage; a bushing fixed relative to the outer tube, the bushing being fitted over the adapter tube and slidable in parallel to the passage of each of the inflating fittings, and the bushing being formed with two step portions therein; and two detent assemblies disposed at the two inflating fittings respectively and located between the two step portions of the bushing and the adapter tube respectively, each of the detent assemblies comprising two detents and an elastic piece, each of the detents having a body disposed in a corresponding one of the grooves of the corresponding inflating fitting and two end portions that are located at two ends of the body and extend outwards from the outer surface of the corresponding inflating fitting respectively, the body having an abutting portion that extends through the through hole of the corresponding inflating fitting and is located inside the passage of the corresponding inflating fitting, and the elastic piece being disposed between the end portions of the two detents and the adapter tube.