| 摘要 |
PURPOSE: An apparatus for supplying air is provided to improve the convenience of use thereof, and to allow the user to clearly recognize the amount of left air thus enabling the user to adjust the usage of oxygen. CONSTITUTION: In the air supplying apparatus comprising an air supply source containing compressed air, a discharge control valve installed to the source, and a coupling element coupled to the control valve for use in the connection of a tool utilizing the compressed air discharging through the control valve, the control valve comprises a first longitudinal passage channel having a closed end, a member(120) installed in the first passage channel and having an expanded receiving portion, a spool movably inserted into a valve seat(150) by interposing a valve spring, a rod(301) having a projection(310) coupled to an air adjustment handle(300), and a second passage channel serving to discharge the compressed air as the spool is compressively moved so as to cause the variation of clearance between the spool and a through hole of the valve seat.
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