Head-mounted display device and wearable part thereof

A head-mounted display device, comprising:

• a wearable part having:
• a main body;
• an upper head band, one end of the upper head band having a beginning end, and the other end of the upper head band having a terminal end, the terminal end being fastened with a top of the main body of the wearable part, any position of the upper head band between the beginning end and the terminal end being selectable to be defined as a clamping portion;
• two side head bands, two ends of the two side head bands being connected with two sides of the main body;
• and
• a flexible adjusting clip mounted on the main body, the flexible adjusting clip having:
• an extension housing having a base portion extended upward from an upper surface of the main body, an operating part extended upward from a middle of a top of the base portion, and two abreast guiding units protruded outward from an outer portion of the operating part, an adjusting space being formed between the base portion and the main body, each guiding unit having a first guiding ring and a second guiding ring which are in alignment with each other, the two first guiding rings of the two guiding units being aligned, the two second guiding rings of the two guiding units being aligned, the two first guiding rings and the two second guiding rings being arranged in two rows;
• a penetrating groove longitudinally penetrating through the extension housing, the upper head band passing through the penetrating groove;
• an adjusting button movably received in the extension housing, the adjusting button having two guiding rods and a fastening portion, the upper head band being movably disposed between the fastening portion and a wall of the penetrating groove, a portion of an outer peripheral surface of each guiding rod extending radially to form a limiting ring, the fastening portion being connected between two inner portions of the two limiting rings of the two guiding rods, a middle of an outer surface of the fastening portion protruding outward and perpendicular to the two guiding rods to form a pushing portion, the pushing portion being located between the two limiting rings of the two guiding rods, the pushing portion being movably exposed out of the penetrating groove;
• and
• two elastic elements worn around the two guiding rods, one end of each guiding rod passing through the first guiding ring of one guiding unit, and the other end of each guiding rod passing through the second guiding ring of the one guiding unit, the two elastic elements being elastically located between the two first guiding rings and the two limiting rings, the two limiting rings and the two elastic elements being positioned between the two first guiding rings and the two second guiding rings, the two guiding rods moving along the two guiding units to compress the two elastic elements to make the fastening portion of the adjusting button move away from the wall of the penetrating groove or release the two elastic elements to make the fastening portion of the adjusting button approach the wall of the penetrating groove, so the upper head band being pulled through the adjusting space to adjust a length of the upper head band, or the clamping portion of the upper head band being clamped between the fastening portion and the wall of the penetrating groove to make the upper head band fastened by the flexible adjusting clip;
• and
• a display part, the beginning end of the upper head band being fastened with a top of the display part, the other two ends of the two side head bands being connected with two sides of the display part.

A wearable part, comprising:

• a main body;
• an upper head band, the upper head band having a terminal end, the terminal end being fastened with the main body;
• an adjusting clip mounted on the main body, the adjusting clip having:
• an extension housing having:
• a base portion extended from the main body;
• an operating part extended from the base portion;
• and
• an adjusting space being formed between the base portion, the main body and the terminal end;
• a penetrating groove longitudinally penetrating through the extension housing, the terminal end of the upper head band passing through the penetrating groove;
• a protective cover covered to the operating part of the extension housing;
• a receiving space formed between the protective cover and the operating part of the extension housing, the receiving space being communicated with the penetrating groove;
• an adjusting button received in the receiving space, the adjusting button movably blocking the upper head band, the adjusting button having a fastening portion and a pushing portion, the upper head band being movably disposed between the fastening portion and a wall of the penetrating groove, the pushing portion projecting out of the receiving space, the pushing portion being movably exposed out of the penetrating groove;
• and
• at least one elastic element received in the receiving space to press the fastening portion to abut against the upper head band, the upper head band being clamped between the fastening portion and the wall of the penetrating groove.