Patent ID: 7841499

Claim:
A gas can mounting structure used in a gas-operated nail gun, comprising: a holder frame, said holder frame comprising an accommodation chamber adapted for accommodating a gas can, an opening disposed in communication with said accommodation chamber and the outside of said holder frame, and an oblique guide groove; a cover pivoted to said holder frame and biased relative to said holder frame between a close position where said cover closes said opening of said holder frame and an open position where said cover is kept away from said opening, said cover comprising a first stop block; and a control switch, said control switch comprising a button, said button comprising a body and a second stop block protruded from said body, said body being received in said oblique guide groove of said holder frame and movable along said oblique guide groove between a first position where said second stop block is stopped at said first stop block of said cover to hold said cover in said close position and a second position where said second stop block is released from said first stop block for allowing said cover to be biased from said close position to said open position, wherein said cover comprises a coupling structure pivoted to said holder frame, and a torsional spring connected between the coupling structure of said cover and said holder frame to impart a biasing force to said cover relative to said holder frame in direction toward said open position, wherein said holder frame comprises a coupling structure pivotally coupled to the coupling structure of said cover, and two protruding blocks bilaterally protruded from the coupling structure of said holder frame; the coupling structure of said cover comprises two smoothly arched sliding grooves respectively coupled to the protruding blocks of said holder frame to guide movement of said cover relative to said holder frame between said close position and said open position.