Hook assembly and object hanging device including the hook assembly

An object hanging device, comprising:

• a body element, having an accommodating space, a first insert opening, a second insert opening and a groove portion, wherein the accommodating space passes through the body element, and the first insert opening and the second insert opening are individually in communication with the accommodating space;
• a driving element, movably connected at the body element, the driving element having a through opening which corresponds to the accommodating space of the body element;
• a first clamp element, movably inserted in the first insert opening, and movably connected at the driving element;
• a second clamp element, movably inserted in the second insert opening, and movably connected at the driving element;
• and
• a hook assembly, detachably connected at the groove portion of the body element, the hook assembly comprising:
• a first combination element, having a first head protruding portion and a first tail connecting portion, wherein the first head protruding portion has a first front half engaging slot, and the first tail connecting portion has a first rear half engaging slot;
• a second combination element, having a second head protruding portion and a second tail connecting portion, wherein the second head protruding portion has a second front half engaging slot, and the second tail connecting portion has a second rear half engaging slot;
• a first object hanging element, having a first coupling portion, wherein the first coupling portion is detachably connected at the first front half engaging slot of the first combination element and the second rear half engaging slot of the second combination element;
• and
• a second object hanging element, having a second coupling portion, wherein the second coupling portion is detachably connected at the second front half engaging slot of the second combination element and the first rear half engaging slot of the first combination element.