| 主权项 |
1. A buckle assembly adapted for use in a respiratory mask, the respiratory mask including a mask body, said buckle assembly comprising:
a female part adapted to be fixed to a side of the mask body, and including top and bottom walls and a curved vertical wall that extends between said top and bottom walls in a vertical direction and that cooperates with said top and bottom walls to define a first open recess thereamong, said top wall being formed with a top pivot hole and a top guiding groove that extends away from a periphery of said top pivot hole, said bottom wall being formed with a bottom pivot hole and a bottom guiding groove that extends away from a periphery of said bottom pivot hole, said bottom guiding groove being aligned with said top guiding groove along the vertical direction, said bottom pivot hole being aligned with said top pivot hole along the vertical direction, said curved vertical wall having a free end that extends between said top and bottom walls; and a male part including an arm section and a hook section that extends curvedly from said arm section, that defines a second open recess, that has a free end, and that is insertable into said first open recess in said female part, said free end of said hook section being formed with top and bottom pivot protrusions that are aligned with each other along the vertical direction and that are respectively slidable ?along said top and bottom guiding grooves into said top and bottom pivot holes, respectively, so as to bring said male part to detachably pivot relative to said female part between a first angular position, in which said free end of said curved vertical wall is disposed outwardly of said second open recess, and a second angular position, in which said free end of said curved vertical wall is disposed in said second open recess and in which said curved vertical wall and said hook section hook to each other. |
