Foldable cardboard stand assembly system and compact box

A foldable cardboard stand assembly system, comprising:

• a plurality of shelves with a back-to-back arrangement;
• a plurality of outer vertical support elements;
• a support structure of the shelves;
• a first and second horizontal surface of the shelves:
• an outer edge;
• one or more locking mechanisms;
• a base;
• and
• a header element;
• wherein the back-to-back shelves are configured to form shelf modules, and the shelf modules are configured to form a shelf assembly when stacked vertically on top of each other;
• the shelf assembly comprising a separate upper portion and a lower portion;
• the shelf further comprises a first horizontal surface of the shelves, with a prong on an inner edge and one or more grooves at ends of the inner edges, and a second horizontal surface of the shelves with a foldable flap configured to connect the first and the second horizontal surfaces of the shelves with each other and having one or more folding lines at a junction of the first horizontal surface of the shelves and the prong;
• the first horizontal surface of the shelves and the second horizontal surface of the shelves configured to be folded horizontally to a narrower width using the one or more folding lines;
• a hole in the first horizontal surface of the shelves;
• the shelves support structure comprising vertical portions of the support structure at each end of the shelves the support structures being mirror images of each other, and a horizontal portion of the support structure connecting the support structures vertical portions, and;
• the vertical portions of the support structure comprising three faces bent to an angle, the three faces being a wider outer portion, a narrower inner portion, and a middle connecting portion;
• and the vertical portions of the support structure comprising folding lines at a junction of the wider outer portion, a middle connecting portion and the narrower inner portion;
• the wider outer portion, the narrower inner portion and the middle connecting portion being vertically foldable to a narrower width using the folding lines;
• the narrower inner portion having a horizontal prong extending into the interior of the shelf assembly, the horizontal prong configured to support the horizontal surfaces;
• a notch at a junction of the horizontal prong and an upper edge of the narrower inner portion, configured to lock the first horizontal surface of the shelves to the narrower inner portion of a vertical portion of the support structure;
• an incision of the first horizontal surface of the shelves being equal to the width of the narrower inner portion of a vertical portion of the support structure;
• an upper edge of the shelves being attached to the upper edge of the support structure's horizontal portion;
• the ends of the shelves being at an angle and aligning with the inner portions of a wider outer part and the middle connecting portion of the vertical portion of the support structure;
• outer vertical support elements at vertical ends of the shelf assembly being mirror images of each other, wherein:
• the outer vertical support elements comprise two wider outer sections and a narrower middle section between the wider outer sections and the wider outer sections being positioned at an angle to the narrower middle section and the outer vertical support element having folding lines at a junction of the wider outer section and the narrower middle section;
• the wider outer sections and the narrower middle sections being configured to be folded to achieve a narrower shape using the folding lines;
• one of the wider sections of the outer support element and the narrower middle sections having at least one incision, and at least one of the outer wider sections having at least one folding line, and
• the at least one incision on the wider section of the support element being a shaped line, and a straight line on the narrower middle section, and the at least one folding line being a straight line;
• the incision partially dividing the outer vertical support element into an upper portion and a lower portion of the outer vertical support element;
• the outer vertical support element being configured to be foldable vertically downwards at the location of the incision and the folding line;
• two opposite vertical prongs located on both sides of the wider portion of the outer vertical support element with the incision;
• a slot for insertion of the vertical prong on the lower portion of the outer vertical support element being located behind the vertical prong on the upper portion of the outer vertical support element, locking the parts of the outer vertical support element together;
• the vertical portion of the shelf support structure is connected to the outer vertical support element, and the upper shelf assembly portion and the lower shelf assembly portion are independently connected to the outer vertical support element;
• the base contains a support structure with extended edges;
• the header element being configured to be attached to the foldable flap and having a support leg, with a foldable extension of the support leg including a fastener and the header element is configured to provide additional interconnection between the first horizontal surface of the shelf and the second horizontal surface of the shelf, and to further secure the stand assembly system into a three-dimensional set-up state.