A small food box
By designing a small food box with a self-locking bottom, the problem of existing French fry packaging boxes taking up a lot of space during transportation and storage is solved, achieving the effect of easy storage and transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- VSTAR PACKAGING (CHINA) LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-06-30
AI Technical Summary
Existing French fry packaging boxes take up a lot of space during transportation and storage, resulting in high transportation costs.
A small food box was designed with a self-locking bottom structure. The box body is connected by fold lines, and the bottom is composed of self-locking units. When unfolded, it forms a three-dimensional box, and when folded, it is flat, making it easy to store and transport.
The self-locking structure enables the small food box to provide three-dimensional support during use and to fold flat when stored, reducing space occupation and lowering transportation and storage costs.
Smart Images

Figure CN224428241U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging box technology, and more specifically to a small food box. Background Technology
[0002] Western fast food restaurants typically use cardboard boxes to package fast food items such as fries, chicken nuggets, fried chicken, and hamburgers. For fries or smaller snacks, specialized fries boxes are usually used. Existing fries boxes generally consist of a box body and bottom, with a single-sided opening and a one-piece structure, offering advantages such as preventing spills, good handling, and large capacity. However, the commonly used three-dimensional box-style fries boxes typically require nesting together during transportation and storage, resulting in significant space consumption and high transportation costs. Utility Model Content
[0003] The purpose of this utility model is to provide a small food box with a self-locking bottom, which is convenient for storage and transportation.
[0004] To achieve the above objectives, this utility model provides a small food box, comprising: a box body and a box bottom located on the same die-cut blank, wherein the box body is connected by fold lines and surrounds the box bottom;
[0005] The box body includes a front box body and a rear box body. The rear box body includes a first rear box body and a second rear box body. The inner ends of the first rear box body and the second rear box body are connected to the two sides of the front box body by fold lines, and the outer ends of the first rear box body and the second rear box body are connected to each other by the box body connecting surface.
[0006] The bottom of the box includes two sets of self-locking units. Each locking unit includes an adjacent locking plate and a bottom plate. The locking plate includes an adhesive piece separated by a fold line and a bottom support piece. The bottom support piece is connected to the bottom edge of the corresponding box body by a fold line. The adhesive piece is connected to the bottom support piece on one side edge of the bottom plate of the box body near the same self-locking unit by a fold line. An interlocking piece is protruding on the other side edge of the bottom support piece.
[0007] When the bottom of the box is unfolded, the two self-locking units interlock with each other. The adhesive pieces in each locking unit are attached to the bottom plate of the box and located on one side of the bottom of the box. The interlocking pieces of each locking unit are inserted into and locked to the inside of the bottom plate of the other self-locking unit.
[0008] Furthermore, the adhesive piece is pasted onto the bottom surface of the box base plate, and a locking part is protruding on the side of the interlocking piece near the adhesive surface. The two interlocking parts engage with each other when the two interlocking pieces are simultaneously inserted into the inner side of another self-locking unit.
[0009] Furthermore, the connecting surface of the box body is an adhesive surface that is connected to the outer edge of the first rear box body or the second rear box body by a fold line. The first rear box body and the second rear box body are glued to each other through the adhesive surface to form the rear box body.
[0010] Furthermore, the bottom edge of the first rear box is connected to the locking plate by a fold line, the bottom edge of the front box is connected to the box bottom plate and the locking plate in sequence by a fold line, and the bottom edge of the second rear box is connected to the box bottom plate by a fold line.
[0011] Furthermore, the bottom plate of the box is trapezoidal, the bottom support piece is triangular, the outer end of the interlocking piece away from the bottom support piece is pointed, and the upper end of each adhesive piece forms a clearance between the corresponding bottom edge of the box body.
[0012] Furthermore, when the two self-locking units are locked, the bottom of the box opens into a rhombus shape. The adhesive strips and the fold lines of the bottom support pieces on the locking plates of each locking unit meet at the center of the bottom of the box to form the diagonal of the rhombus. The two bottom support pieces are located at the diagonal positions of the bottom of the box, and the two bottom plates are located at the diagonal positions of the bottom of the box.
[0013] Furthermore, the vertical fold line at the junction of the front box body and the first and second rear boxes is used as a diagonal. At the lower end of the junction of the front box body and the first and second rear boxes, a parallelogram pressing point is formed by pre-pressing fold lines. The pressing point also has a horizontal fold line perpendicular to the vertical fold line on the other diagonal of the parallelogram.
[0014] Furthermore, the first cutting line is formed at the intersection of the horizontal fold line and the vertical fold line, and the second cutting lines are formed at the top corners of the two ends of the horizontal fold line.
[0015] Furthermore, the center of the upper edge of the front box is recessed to form a V-shaped opening.
[0016] Furthermore, each locking unit has a cutout on the fold line connecting the locking plate, the bottom plate, and the body of the box.
[0017] By adopting the above solution, this utility model has at least the following technical effects:
[0018] The bottom of the box features a self-locking structure. When using the small food box, pressing the two sides of the box body will lock the two self-locking units, opening the bottom of the small food box before filling it with contents. When the small food box is not in use, such as during transportation or storage, the self-locking bottom can be folded upwards between the front and back boxes, with the front and back boxes fitting together, making the small food box flat, taking up little space, and saving on transportation costs and storage space. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the flat laying of the die-cut blank of this utility model.
[0020] Figure 2 This is a schematic diagram of the storage state of this utility model.
[0021] Figure 3 This is a schematic diagram of the present invention in a semi-open state (bottom shown).
[0022] Figure 4 This is a schematic diagram of the present invention in use (bottom shown).
[0023] Explanation of icon numbers:
[0024] 1. Front box body; 11. Opening;
[0025] 2. Rear box body; 21. First rear box body; 22. Second rear box body; 23. Box body connecting surface;
[0026] 3 boxes bottom;
[0027] 4 Self-locking unit; 41 Locking plate; 411 Adhesive piece; 412 Clearance part; 413 Base plate; 414 Interlocking piece; 415 Locking part; 42 Box bottom plate; b Cutout;
[0028] 5. Pressing point; 51. Vertical fold line; 52. Horizontal fold line; a. Second cutting line. Detailed Implementation
[0029] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.
[0030] See Figures 1 to 4 This utility model discloses a small food box, which has a box body and a self-locking bottom 3 located at the bottom of the box body. The small food box can be folded into a flat shape and can be directly unfolded into a three-dimensional box when in use. See reference. Figure 1 This is a schematic diagram of a die-cut blank laid out according to an embodiment of the present invention, including: a box body and a box bottom 3 located on the same die-cut blank (the structure of the box bottom 3 after molding can be referred to). Figure 3 , Figure 4 The box body is connected by fold lines and surrounds the bottom 3 of the box;
[0031] The box body includes a front box body 1 and a rear box body 2. The rear box body 2 includes a first rear box body 21 and a second rear box body 22. The inner ends of the first rear box body 21 and the second rear box body 22 are respectively connected to the two sides of the front box body 1 by fold lines. The outer ends of the first rear box body 21 and the second rear box body 22 are connected to each other by the box body connecting surface 23.
[0032] The box bottom 3 includes two adjacent self-locking units 4. Each locking unit 4 includes an adjacent locking plate 41 and a box bottom plate 42. The locking plate 41 includes an adhesive piece 411 separated by a fold line and a bottom support piece 413. The bottom support piece 413 is connected to the bottom edge of the corresponding box body by a fold line. The adhesive piece 411 is connected to the bottom support piece 413 on one side edge of the box bottom plate 42 near the same self-locking unit 4 by a fold line. An interlocking piece 414 protrudes from the other side edge of the bottom support piece 413. A latching part 415 is provided between the adhesive piece 411 and the interlocking piece 414 on the locking plate 41.
[0033] When the bottom of the box 3 is unfolded, the two self-locking units 4 engage with each other. The adhesive piece 411 of the locking plate 41 in each locking unit 4 is attached to the bottom plate 42 of the box and is located on one side of the bottom of the box 3. The interlocking piece 414 of each locking unit 4 is inserted into the inside of the bottom plate 42 of the other self-locking unit 4.
[0034] In this embodiment, the snack box is pre-prepared with glue or other adhesive materials (such as glue or other adhesive materials) on the box body connecting surface 23 and each adhesive piece 411 at the time of manufacture. Figure 1 (The shaded area in the middle).
[0035] In this embodiment, the box body connecting surface 23 is connected to the outer edge of the first rear box body 21 by a fold line, and the adhesive surface on the box body connecting surface 23 is adhered to the inner side of the second rear box body 22 to form a complete rear box body 2. In other embodiments, the box body connecting surface 23 may also be connected to the outer edge of the second rear box body 22 and adhered to the first rear box body 21.
[0036] In this embodiment, the bottom edge of the first rear box body 21 is connected to the locking plate 41 by a fold line, the bottom edge of the front box body 1 is connected to the box bottom plate 42 and the locking plate 41 in sequence by a fold line, and the bottom edge of the second rear box body 22 is connected to the box bottom plate 42 by a fold line.
[0037] In this embodiment, the bottom plate 42 is trapezoidal, the bottom support piece 413 is triangular, and the outer end of the interlocking piece 414 away from the bottom support piece 413 is pointed so that it can be inserted into the self-locking unit 4 on the opposite side and locked above the bottom plate 42 of the self-locking unit 4 on the opposite side, thereby realizing the self-locking function of the bottom plate 3. The upper end of each adhesive piece 411 forms a clearance portion 412 between the corresponding bottom edge of the box body, so that a certain gap is generated between the adhesive piece 411 and the box body, which facilitates folding.
[0038] The adhesive piece 411 is attached to the bottom surface of the box base plate 42. When the snack box is not in use (for storage or transportation), each locking unit 4 folds upward and is located between the front box body 1 and the rear box body 2, with the front box body 1 and the rear box body 2 fitting together, allowing the snack box to be flat. The snack box in this embodiment can be sold in this form at the factory, and multiple snack boxes can be stacked for transportation and storage, greatly reducing transportation and storage costs. When the snack box is needed, the snack box is taken out and the fold line between the front box body 1 and the rear box body 2 on both sides of the snack box is pressed. The self-locking unit 4 unfolds downward to form a flat box bottom 3 and locks together: the latching parts 415 interlock with each other, and the interlocking piece 414 of each locking unit 4 is inserted into another self-locking unit 4 and is located above the box base plate 42 of the other self-locking unit 4. In this embodiment, the bottom of the box 3 is opened into a rhombus shape. The fold lines of the adhesive pieces 411 and the bottom support pieces 413 on the locking plates 41 of each locking unit 4 meet at the center of the bottom of the box 3 to form the diagonal of the rhombus. The two bottom support pieces 413 are located at opposite corners of the bottom of the box 3, and the two bottom plates 42 are located at opposite corners of the bottom of the box 3.
[0039] To further facilitate use, the snack box in this embodiment is also provided with a pressing area 5. Specifically, the vertical fold line 51 at the junction of the front box body 1 and the first rear box body 21 and the second rear box body 22 is used as a diagonal. At the lower end of the junction of the front box body 1 and the first rear box body 21 and the second rear box body 22, a pressing area 5 is formed into a parallelogram by pre-pressing fold lines. The pressing area 5 also has a horizontal fold line 52 perpendicular to the vertical fold line 51 on the other diagonal of the parallelogram. The horizontal fold line 52 is cut on the left and right sides at the intersection with the vertical fold line 51 to form a first cutting line (the first cutting line in the figure overlaps on the horizontal fold line 52). The two edges of the top corners of the two ends of the horizontal fold line 52 are also respectively formed by second cutting lines a.
[0040] When using the small food container, pressing the pressing points 5 on both sides of the container makes it easier to open. Furthermore, when filling the container with fries or other food in its open state, pressing both pressing points 5 simultaneously makes it easier for a food shovel to enter the opening 11, allowing for smoother food filling. The cutting lines at the center of the horizontal fold line 52 and at both ends of the top corners provide a certain degree of elasticity when the pressing parts are pressed, preventing the container from deforming.
[0041] Furthermore, the upper edge of the front box 1 is recessed to form a V-shaped opening 11 (in this embodiment, the upper ends of the two sides of the opening 11 have a certain curvature), which makes it convenient to put food into the small food box and to make it convenient for diners to take out the items in the small food box to eat.
[0042] Furthermore, each locking unit 4 has a cutting notch b on the fold line connecting the locking plate 41, the bottom plate 42 and the box body, which facilitates the folding of the locking plate 41 and the bottom plate 42 to form a self-locking bottom 3 structure.
[0043] The above is merely one embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A snack box, characterized in that include: The box body and box bottom are located on the same die-cut blank, with the box body connected by fold lines and surrounding the box bottom; The box body includes a front box body and a rear box body. The rear box body includes a first rear box body and a second rear box body. The inner ends of the first rear box body and the second rear box body are connected to the two sides of the front box body by fold lines, and the outer ends of the first rear box body and the second rear box body are connected to each other by the box body connecting surface. The bottom of the box includes two sets of self-locking units. Each locking unit includes an adjacent locking plate and a bottom plate. The locking plate includes an adhesive piece separated by a fold line and a bottom support piece. The bottom support piece is connected to the bottom edge of the corresponding box body by a fold line. The adhesive piece is connected to the bottom support piece on one side edge of the bottom plate of the box body near the same self-locking unit by a fold line. An interlocking piece is protruding on the other side edge of the bottom support piece. When the bottom of the box is unfolded, the two self-locking units interlock with each other. The adhesive pieces in each locking unit are attached to the bottom plate of the box and located on one side of the bottom of the box. The interlocking pieces of each locking unit are inserted into and locked to the inside of the bottom plate of the other self-locking unit.
2. A snackette according to claim 1, wherein, The adhesive piece is attached to the bottom surface of the box base plate. The interlocking piece has a locking part protruding on the side near the adhesive surface. The two interlocking parts lock together when the two interlocking pieces are simultaneously inserted into the inner side of another self-locking unit.
3. A snacker box according to claim 1, wherein The connecting surface of the box body is an adhesive surface that is connected to the outer edge of the first or second rear box body by a fold line. The first and second rear boxes are glued to each other through the adhesive surface to form the rear box body.
4. A snacker box according to claim 1, wherein The bottom edge of the first rear box is connected to the locking plate by a fold line, the bottom edge of the front box is connected to the box bottom plate and the locking plate in sequence by a fold line, and the bottom edge of the second rear box is connected to the box bottom plate by a fold line.
5. A snackette according to claim 1 or 4, wherein, The box base is trapezoidal, the bottom support is triangular, the outer end of the interlocking piece away from the bottom support is pointed, and the upper end of each adhesive piece forms a clearance between the corresponding bottom edge of the box body.
6. A snackette according to claim 5, wherein, When the two self-locking units are locked, the bottom of the box opens into a rhombus shape. The adhesive strips and the fold lines of the bottom support pieces on the locking plates of each locking unit meet at the center of the bottom of the box to form the diagonal of the rhombus. The two bottom support pieces are located at the diagonal positions of the bottom of the box, and the two bottom plates are located at the diagonal positions of the bottom of the box.
7. A snackette according to claim 1, wherein, The vertical fold line at the junction of the front box body and the first and second rear boxes is used as the diagonal. At the lower end of the junction of the front box body and the first and second rear boxes, a parallelogram pressing point is formed by pre-pressing fold lines. The pressing point also has a horizontal fold line perpendicular to the vertical fold line on the other diagonal of the parallelogram.
8. A snackette according to claim 7, wherein, The first cutting line is formed by cutting at the intersection of the horizontal zigzag line and the vertical zigzag line in the middle, and the second cutting lines are formed at the top corners of the two ends of the horizontal zigzag line.
9. A snack box according to claim 1, wherein The center of the upper edge of the front box is recessed to form a V-shaped opening.
10. A snackette according to claim 1, wherein, Each locking unit has a cutout on the fold line connecting the locking plate, the bottom plate, and the body of the box.