Wearable device, strap and engaging mechanism

A strap, comprising:

• a strap body, wherein one end of the strap body is provided with a receiving space, the strap body is provided with a peg-sliding hole, and the peg-sliding hole communicates with the receiving space and extends to a surface of the strap body;
• the strap body is provided with a first through hole, and the first through hole communicates with the receiving space and extends to a surface of the strap body;
• a peg, wherein one end of the peg penetrates through the peg-sliding hole and is exposed outside the strap body, and the other end of the peg is located in the receiving space;
• an eject pin located in the receiving space and movably penetrating through the first through hole so as to protrude or retract with respect to the strap body;
• and
• a linkage component connected between the peg and the eject pin, wherein when the peg moves at the peg-sliding hole, the peg drives the eject pin to protrude or retract with respect to the strap body via the linkage component, so as to make the eject pin selectively protrude out of the strap body or retract into the strap body;
• wherein the linkage component comprises a first sheet, a second sheet, and a fixing sheet one end of the first sheet is provided with a second through hole, one end of the second sheet is provided with a third through hole, the peg penetrates through and is fixed to the second through hole and the third through hole, and the first sheet and the second sheet rotate around the peg.

An engaging mechanism, comprising:

• a peg;
• two eject pins;
• and
• a linkage component connected between the peg and the eject pins, wherein when the peg moves, the two eject pins are driven to protrude or retract via the linkage component, and movement directions of the two eject pins are opposite;
• wherein the linkage component comprises a first sheet, a second sheet, and a fixing sheet;
• one end of the first sheet is provided with a second through hole, one end of the second sheet is provided with a third through hole, the peg penetrates through and is fixed to the second through hole and the third through hole, and the first sheet and the second sheet rotate around the peg.