Patent attributes
A portable electronic device includes a carrying structure and defines a mounting hole and an opposite strap hole. The carrying structure includes a snap module received in the mounting hole, having a pressing element, a snap element, a knuckle element and an elastic element, and a strap. The strap has two strap connecting ends connecting to the knuckle element and the strap hole. The pressing element has two extending portions, each of which has a wedge-shaped surface. The snap element has three wedge-shaped engaging portions. One engaging portion engages the knuckle element, latching the snap element with the knuckle element. The knuckle element and the snap element are unlockable by pressing the pressing element, where the one engaging portion disengages from the knuckle element, and anther two engaging portions slide aslant along the wedge-shaped surfaces. The elastic element has two ends resisting the snap element and the pressing element.