Patent ID: 11913438
Assignee: BETO ENGINEERING & MARKETING CO., LTD.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  G | IPC F  G

Claim 0:
1. An air inflation device suitable for inflating air into an inflatable object, comprising:
an inflation mechanism including an inflation unit and a handgrip unit, said inflation unit defining an interior space and having an inflation hole for allowing air to be inflated into the inflatable object, said handgrip unit extending along a longitudinal direction and being connected to said inflation unit; and
a pressure measuring mechanism disposed in said handgrip unit and including
a flow guide unit including a first tubular member that defines a receiving space, and a second tubular member connected to said first tubular member and defining a flow guide channel, said flow guide channel having an air inlet communicating with said interior space, and an air guide hole communicating with said receiving space,
a measuring unit including an elastic member that is retractable when pushed, an end plug fixed to said first tubular member and connected to said elastic member, and a piston member connected to said elastic member and having a free end that is pushed to move relative to said first tubular member along the longitudinal direction by air entering said receiving space from said flow guide channel, said free end being opposite to said end plug, said elastic member and said piston member being disposed in said receiving space, said elastic member being retracted when said free end is pushed by the air entering said receiving space, and
an indicating unit extending along the longitudinal direction, provided on said first tubular member, and configured to indicate a position of said free end of said piston member of said measuring unit in said first tubular member;

wherein said first tubular member is transparent, said handgrip unit includes a handgrip housing having a viewing window, and said pressure measuring mechanism is disposed in said handgrip housing.