Pop-up three-dimensional (3d) greeting card structure with movable support arms

A pop-up three-dimensional (3D) greeting card structure with movable support arms, comprising:

• a middle panel, a middle-rear panel, movable support arms, and an outer casing, wherein
• a cross-section of the middle panel and a cross-section of the middle-rear panel are V-shaped;
• notches are respectively formed on two sides of the middle panel and two sides of the middle-rear panel;
• the notches on the middle panel are correspondingly interlocked with the notches on the middle-rear panel to form a rhombic grid;
• and the movable support arms respectively extend from two ends of the middle-rear panel;
• and
• middle panel adhesive flaps are respectively provided on two ends of the middle panel;
• middle-rear panel adhesive flaps are respectively provided on the two ends of the middle-rear panel;
• the outer casing is sleeved on the middle panel, the middle-rear panel and the movable support arms;
• and the middle panel adhesive flaps and the middle-rear panel adhesive flaps are bonded to an inner wall of the outer casing.