Self-locking hanging device

A device for hanging an object on a mounting surface, comprising:

• a mounting bracket comprising a front side, a back side for coupling to the mounting surface, and an elongate track portion, wherein the track portion comprises a pair of guide portions defining a through slot therebetween and rear recesses extending in a back side of the guide portions, and wherein the rear recesses form a lower locking portion of the track portion and an upper rotation portion of the track portion that includes rear recesses that are deeper from the back side to the front side than the lower locking portion;
• and
• a locking arm member for holding an object translatably coupled with the track portion of the mounting bracket, the arm member comprising a base portion positioned within the rear recesses and an arm portion extending from the base portion through the slot and to a tip portion,
• wherein the base portion of the arm member and the rear recesses of the track portion are configured such that:
• when the base portion of the arm member is positioned within the lower locking portion of the track portion, the arm member is retained in a closed orientation with the tip portion being positioned proximate to the front side of the mounting bracket;
• and
• when the base portion of the arm member is positioned within the upper rotation portion of the track portion, the arm member is freely rotatable with respect to the mounting bracket between the closed orientation and an open orientation with the tip portion being positioned distal to the front side of the mounting bracket.