| CPC H04R 1/1041 (2013.01) [H04R 1/1008 (2013.01); H04R 1/105 (2013.01); H04R 1/1058 (2013.01); H04R 1/1066 (2013.01); H04R 5/0335 (2013.01); H04R 2201/107 (2013.01)] | 10 Claims |
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1. A headphone device, comprising:
a first earmuff assembly comprising a first speaker;
a second earmuff assembly comprising a second speaker;
an arc-shaped connecting strip connected with the first earmuff assembly and the second earmuff assembly, wherein the arc-shaped connecting strip has a first opening; and
a clamping force adjustment mechanism comprising:
a first pressing plate;
a second pressing plate having a second opening, wherein the arc-shaped connecting strip is clamped between the first pressing plate and the second pressing plate;
a slide block located beside a side of the second pressing plate away from the arc-shaped connecting strip, and a center of the slide block has a first screw hole;
a knob located beside a side of the slide block away from the second pressing plate, wherein a center of the knob has an accommodation recess, the slide block is accommodated within the accommodation recess, and a center of the accommodation recess has a third opening, wherein as the knob is rotated, the slide block is synchronously rotated through the accommodation recess; and
a bolt comprising a head part and a first threaded part, wherein the head part is fixed on the first pressing plate, and the first threaded part is penetrated through the first opening and the second opening and tightened into the first screw hole,
wherein while the slide block is driven by the knob and the slide block is moved upwardly or downwardly along the bolt, a distance between the first pressing plate and the second pressing plate is changed, and an appearance of the arc-shaped connecting strip is subjected to deformation.
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