Packaging box with film sticking function

A packaging box with a film sticking function, comprising:

• a bottom box;
• and
• an upper cover,
• wherein a side wall of the upper cover is provided with a pull-out opening, an inner wall of the upper cover is connected to a protective film set, a pull-out bar of the protective film set passes through the pull-out opening and extends out of the pull-out opening, and the protective film set and the upper cover jointly cover the bottom box to form a positioning cavity;
• wherein the bottom box includes a box body having a hollow covering surface, and a positioning assembly disposed in the box body, the positioning assembly including a bottom frame and a positioning plate having an edge in support connection to the box body through the bottom frame;
• wherein a limiting slot is disposed on a side wall of the box body, the limiting slot is disposed in a width direction of the protective film set, and when the upper cover is covered by the bottom box, the protective film set is disposed in the limiting slot;
• wherein the pull-out opening is arranged in a width direction of the upper cover, a fixing plate is secured to a side wall, away from the pull-out opening, of the bottom box, and the bottom box is in folded and rotary connection to the upper cover through the fixing plate;
• wherein an outer wall of the fixing plate is vertically connected to a hanging buckle, and the two opposite side walls of the upper cover in a length direction thereof are provided with a plurality of handle slots, respectively;
• wherein a pressure-maintaining tampon is secured to the inner wall of the upper cover in a length direction thereof, and the pressure-maintaining tampon is disposed between the upper cover and the protective film set;
• wherein the protective film set includes a mask, a glass protective film, and a release film;
• wherein the mask, the glass protective film, and the release film are sequentially stacked from inside to outside and arranged on the inner wall of the upper cover;
• wherein the pull-out bar is arranged at a bottom of the release film and connected to a connecting end of the release film;
• wherein both ends of the mask are adhesively connected to the upper cover through two adhesives, respectively;
• wherein the pressure-maintaining tampon is disposed between the two adhesives, and the release film is adhered to the glass protective film;
• and
• wherein the connecting end of the release film is adhered to the mask through a fixing bar disposed externally of the glass protective film.