Adjustable sub-packaging food packaging box
By designing the dispensing and fixing mechanisms of adjustable food packaging boxes, the problems of the inability to adjust space and package multiple foods simultaneously in existing technologies have been solved. This achieves adaptive and stable packaging for foods of different sizes, reducing waste and costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN CITY HECHANG PRINTING CO LTD
- Filing Date
- 2025-09-02
- Publication Date
- 2026-06-26
AI Technical Summary
Existing adjustable food packaging boxes cannot adjust the internal space size, making it impossible to package different types of food at the same time, resulting in inconvenience and increased packaging costs.
An adjustable food packaging box was designed, comprising a box body, a lid, a handle, a dispensing mechanism, a sliding mechanism, and a fixing mechanism. Through the cooperation of a centering component, a clamping component, and a snap-fit component, the internal space of the dispensing box can be adjusted and the food can be positioned, supporting the simultaneous packaging of multiple foods.
It enables adaptive packaging for food of different sizes, reducing food waste and packaging costs, and improving packaging efficiency and food stability during transportation.
Smart Images

Figure CN224409924U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging box technology, specifically to an adjustable food packaging box. Background Technology
[0002] Adjustable food packaging boxes are flexible food storage containers with adjustable capacity or compartments, primarily used for packaging different types or quantities of food. Through built-in movable dividers or modular designs, users can freely divide the internal space to independently package various foods, preventing cross-contamination of flavors. For example, baby food containers often use a compartmentalized structure for easy carrying of different ingredients. Some products feature multi-layered or folding designs, allowing users to adjust the overall capacity according to their needs, suitable for packaging small quantities of snacks or large portions of food. They are widely used in family food storage, outdoor picnics, and baby food transportation, with some products supporting direct placement in steamers, ovens, or refrigerators, enhancing ease of use.
[0003] Existing adjustable food packaging boxes have the following shortcomings:
[0004] Most existing packaging boxes cannot adjust the internal space size. However, there are many types of food with different shapes and sizes after processing. Therefore, they cannot meet the packaging needs of food of different sizes. Multiple packaging boxes of different sizes are required, which is inconvenient to use.
[0005] Most existing packaging boxes can only package one type of food, and cannot meet the needs of packaging multiple different types of food at the same time. When different types of food need to be packaged, multiple packaging boxes are often required, which makes the packaging process complicated and cumbersome, and increases packaging costs. Utility Model Content
[0006] The purpose of this utility model is to provide an adjustable food packaging box.
[0007] To achieve this objective, the present invention adopts the following technical solution:
[0008] An adjustable food packaging box is provided, including a box body, a box lid and a handle. The box lid is located on the top of the box body and the box body is rotatably connected to the box lid. The handle is fixedly located on the top of the box lid.
[0009] It also includes a dispensing mechanism, a sliding mechanism, and a fixing mechanism;
[0010] The dispensing mechanism is located inside the box. The dispensing mechanism includes a first dispensing box, a second dispensing box, two handles, two centering components, and two clamping components. The first dispensing box is slidably disposed on the inner wall of the box. The second dispensing box is disposed between the first dispensing box and the box lid, and the second dispensing box is slidably connected to the box. The two handles are symmetrically disposed on the top of the second dispensing box. The two centering components are respectively disposed on the first dispensing box and the second dispensing box. Each clamping component is disposed on one centering component.
[0011] The sliding mechanism is located at the bottom of the box body. The sliding mechanism includes two U-shaped plates and two pushing components. The two pushing components are symmetrically arranged between the first packaging box and the box body. Each U-shaped plate is arranged between the second packaging box and a pushing component.
[0012] The fixing mechanism includes two connecting rods and four snap-fit components. The four snap-fit components are symmetrically arranged on the box body, and each connecting rod is fixed between two snap-fit components.
[0013] Preferably, each centering component includes a rotating rod, a rotating shaft, a guide rod, an L-shaped block, a sliding rod, an insert block, a limiting plate, a telescopic spring, two connecting plates, two U-shaped rods, and several limiting grooves. The rotating rod is rotatably located at the bottom of the first packaging box. The two connecting plates are symmetrically arranged at both ends of the rotating rod, and each connecting plate is hinged to one end of the rotating rod. Each U-shaped rod is fixedly located on one connecting plate. The rotating shaft is rotatably located at the bottom of the first packaging box and is fixedly connected to the rotating rod. Several limiting grooves are evenly spaced at the bottom of the first packaging box. The L-shaped block is fixedly located on the rotating shaft. The sliding rod is slidably located on the outer wall of the L-shaped block. The guide rod is fixedly located at one end of the sliding rod. The limiting plate is fixedly located at the end of the guide rod away from the sliding rod. The insert block is fixedly located on the limiting plate and is inserted into one of the limiting grooves. The telescopic spring is sleeved on the outer wall of the guide rod. The limiting plate and the L-shaped block are respectively pressed against both ends of the telescopic spring.
[0014] Preferably, each clamping assembly includes a support plate, two sliding plates and two limiting plates. The support plate is fixedly mounted on the first packaging box. The two sliding plates are symmetrically mounted on the support plate, and each sliding plate is slidably connected to the support plate. Each limiting plate is slidably mounted on one of the sliding plates, and each limiting plate is fixedly connected to the end of a U-shaped rod away from the connecting plate.
[0015] Preferably, each pushing component includes a wedge block and a roller. The wedge block is slidably disposed inside the box body, and each wedge block is fixedly connected to the end of a U-shaped plate away from the second packaging box. The roller is rotatably disposed at the bottom end of the first packaging box, and the outer edge of the roller is in contact with the outer wall of the wedge block.
[0016] Preferably, each buckle assembly includes an elastic buckle, a slot, and an unlocking lever. The elastic buckle is fixedly disposed on the outer wall of the second packaging box, the slot is integrally formed on the box body, and the unlocking lever is fixedly disposed on the outer wall of the box body.
[0017] Preferably, the first packaging box is connected to the box body by two return springs, and the outer wall of the first packaging box and the inner wall of the box body are respectively fixedly connected to the two ends of the two return springs. The inner wall of the box body is symmetrically provided with slide rails, which are fixedly connected to the box body. The outer wall of the first packaging box is symmetrically provided with sliders, which are fixedly connected to the first packaging box, and the slide rails and sliders are slidably connected.
[0018] Preferably, two guide rails are symmetrically arranged on the inner wall of the box, and each guide rail is fixedly connected to one end of the inner wall of the box. Two L-shaped plates are symmetrically arranged at the bottom of the second packaging box, and each L-shaped plate is fixedly connected to the second packaging box. Each L-shaped plate is slidably connected to a guide rail.
[0019] Preferably, each slide has two symmetrical grooves on its top for the limiting plate to slide.
[0020] The beneficial effects of this utility model are:
[0021] This packaging box is designed with a centering component and a clamping component. By working together, the packaging volume inside the box can be adjusted to accommodate food of different sizes. This avoids over-packaging or insufficient space caused by a fixed capacity, reduces food waste, and clamps and limits the packaged food to prevent it from shaking inside the box.
[0022] This packaging box design includes a first packaging box and a second packaging box, allowing for the simultaneous packaging of different types of food without the need for multiple boxes, thus reducing packaging costs and improving packaging efficiency. Attached Figure Description
[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below.
[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0025] Figure 2 This is a schematic diagram of the three-dimensional cross-section structure of this utility model. Figure 1 ;
[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0027] Figure 4 for Figure 2 Enlarged view of point B in the middle;
[0028] Figure 5 for Figure 4 Enlarged view of point C in the middle;
[0029] Figure 6 This is a schematic diagram of the cross-section plane of this utility model. Figure 1 ;
[0030] Figure 7 This is a schematic diagram of the cross-section plane of this utility model. Figure 2 ;
[0031] Figure 8 This is a schematic diagram of the three-dimensional cross-section structure of this utility model. Figure 2 ;
[0032] Figure 9 This is a schematic diagram of the three-dimensional cross-section structure of this utility model. Figure 3 ;
[0033] The attached diagram is labeled as follows: 1. Box body; 2. Box lid; 3. Handle; 4. First packaging box; 5. Second packaging box; 6. Handle; 7. U-shaped plate; 8. Connecting rod; 9. Rotating rod; 10. Rotating shaft; 11. Guide rod; 12. L-shaped block; 13. Slide rod; 14. Insert block; 15. Limiting plate; 16. Telescopic spring; 17. Connecting plate; 18. U-shaped rod; 19. Limiting groove; 20. Support plate; 21. Slide plate; 22. Limiting plate; 23. Wedge block; 24. Roller; 25. Elastic buckle; 26. Slot; 27. Unlocking rod; 28. Return spring; 29. Slide rail; 30. Slider; 31. Guide rail; 32. L-shaped plate; 33. Slide groove. Detailed Implementation
[0034] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0035] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.
[0036] Reference Figures 1 to 9 As shown, an adjustable food packaging box includes a box body 1, a box lid 2, and a handle 3. The box lid 2 is located on the top of the box body 1, and the box body 1 and the box lid 2 are rotatably connected. The handle 3 is fixedly located on the top of the box lid 2.
[0037] It also includes a dispensing mechanism, a sliding mechanism, and a fixing mechanism;
[0038] The dispensing mechanism is located inside the box body 1. The dispensing mechanism includes a first dispensing box 4, a second dispensing box 5, two handles 6, two centering components, and two clamping components. The first dispensing box 4 is slidably disposed on the inner wall of the box body 1. The second dispensing box 5 is disposed between the first dispensing box 4 and the box cover 2, and the second dispensing box 5 is slidably connected to the box body 1. The two handles 6 are symmetrically disposed on the top of the second dispensing box 5. The two centering components are respectively disposed on the first dispensing box 4 and the second dispensing box 5. Each clamping component is disposed on one centering component.
[0039] The sliding mechanism is located at the bottom of the box body 1. The sliding mechanism includes two U-shaped plates 7 and two pushing components. The two pushing components are symmetrically arranged between the first dispensing box 4 and the box body 1. Each U-shaped plate 7 is arranged between the second dispensing box 5 and a pushing component.
[0040] The fixing mechanism includes two connecting rods 8 and four buckle assemblies. The four buckle assemblies are symmetrically arranged on the box body 1, and each connecting rod 8 is fixed between two buckle assemblies.
[0041] Reference Figures 1 to 9As shown, each centering component includes a rotating rod 9, a rotating shaft 10, a guide rod 11, an L-shaped block 12, a sliding rod 13, an insert block 14, a limiting plate 15, a telescopic spring 16, two connecting plates 17, two U-shaped rods 18, and several limiting grooves 19. The rotating rod 9 is rotatably mounted at the bottom of the first dispensing box 4. The two connecting plates 17 are symmetrically arranged at both ends of the rotating rod 9, and each connecting plate 17 is hinged to one end of the rotating rod 9. Each U-shaped rod 18 is fixedly mounted on one connecting plate 17. The rotating shaft 10 is rotatably mounted at the bottom of the first dispensing box 4, and the rotating shaft 10 is fixedly connected to the rotating rod 9. Several limiting grooves 19 are evenly spaced at the bottom of the first dispensing box 4. The L-shaped block 12 is fixedly mounted on the rotating shaft 10. The slide rod 13 is slidably mounted on the outer wall of the L-shaped block 12. The guide rod 11 is fixedly mounted on one end of the slide rod 13. The limiting plate 15 is fixedly mounted on the end of the guide rod 11 away from the slide rod 13. The insert block 14 is fixedly mounted on the limiting plate 15 and is inserted into one of the limiting grooves 19. The telescopic spring 16 is sleeved on the outer wall of the guide rod 11. The limiting plate 15 and the L-shaped block 12 are respectively pressed against the two ends of the telescopic spring 16. When the first dispensing box 4 has completely slid out of the box body 1, and it is necessary to adjust the dispensing space of the food in the first dispensing box 4 and the second dispensing box 5, the first dispensing box is manually pulled. 4. The slide bar 13 at the bottom of the second packaging box 5 is slidably connected to the L-shaped block 12. The guide rod 11 is fixedly connected to the slide bar 13, the limiting plate 15 is fixedly connected to the guide rod 11, and the insert block 14 is fixedly connected to the limiting plate 15. In addition, the limiting plate 15 and the L-shaped block 12 are respectively pressed against the two ends of the telescopic spring 16, so that the insert block 14 is pulled out from one of the limiting grooves 19. Then, the L-shaped block 12 is manually rotated to the appropriate position through the rotating shaft 10, and the slide bar 13 is released. Under the reset action of the telescopic spring 16, the insert block 14 is driven to insert into one of the limiting grooves 19, realizing the locking of the rotating shaft 10. Since the L-shaped block 12 is fixed to the rotating shaft 10, The rotating shaft 10 is rotatably connected to the first dispensing box 4, and the rotating shaft 10 is fixedly connected to the rotating rod 9. When the L-shaped block 12 is rotated, the rotating shaft 10 rotates, thereby driving the rotating rod 9 to rotate. Since the two connecting plates 17 are respectively hinged to the two ends of the rotating rod 9, each U-shaped plate 7 is fixedly connected to one connecting plate 17. In addition, the end of the U-shaped plate 7 away from the connecting plate 17 is fixedly connected to the limiting plate 22. When the rotating rod 9 rotates, it drives the connecting rod 8 to rotate, thereby causing the limiting plate 22 to slide and stop shaking. This provides a limiting effect for the food, which can prevent the product from shaking and being damaged in the box 1 during subsequent transportation, and is conducive to improving the dispensing quality.
[0042] Reference Figures 1 to 9As shown, each clamping assembly includes a support plate 20, two sliding plates 21, and two limiting plates 22. The support plate 20 is fixedly mounted on the first packaging box 4. The two sliding plates 21 are symmetrically arranged on the support plate 20, and each sliding plate 21 is slidably connected to the support plate 20. Each limiting plate 22 is slidably mounted on one sliding plate 21, and each limiting plate 22 is fixedly connected to the end of a U-shaped rod 18 away from the connecting plate 17. When the rotating rod 9 drives the limiting plate 22 to slide, since the support plate 20 is fixedly mounted on the first packaging box 4... The slide plate 21 is slidably connected to the support plate 20, and the limiting plate 22 is slidably connected to the slide plate 21. After the limiting plate 22 slides to the maximum distance on the slide plate 21, the limiting plate 22 can continue to drive the slide plate 21 to slide on the outer wall of the support plate 20. This allows for maximum adjustment of the distance between the two limiting plates 22, enabling adjustment of the food packaging space in the first packaging box 4 and the second packaging box 5, and clamping the packaged food to prevent it from shaking and spilling out inside the packaging box.
[0043] Reference Figures 1 to 9 As shown, each pushing component includes a wedge block 23 and a roller 24. The wedge block 23 is slidably disposed inside the box body 1, and each wedge block 23 is fixedly connected to the end of a U-shaped plate 7 away from the second packaging box 5. The roller 24 is rotatably disposed at the bottom end of the first packaging box 4, and the outer edge of the roller 24 is in contact with the outer wall of the wedge block 23. When the second packaging box 5 is manually pulled upward, since both ends of the U-shaped plate 7 are fixedly connected to the second packaging box 5 and the wedge block 23 respectively, the roller 24 is rotatably connected to the first packaging box 4, and the outer edge of the roller 24 is in contact with the outer wall of the wedge block 23. In addition, The slide rail 29 is fixedly connected to the inner wall of the box body 1, and the slider 30 is fixedly connected to the first dispensing box 4. The slider 30 is slidably connected to the slide rail 29, so that the second dispensing box 5 drives the wedge block 23 to rise, so that the roller 24 slides on the inclined surface of the wedge block 23, thereby driving the first dispensing box 4 to slide horizontally along the slide rail 29. When the second dispensing box 5 is locked above the box body 1, the roller 24 is in contact with the narrowest end of the inclined surface of the wedge block 23, thereby allowing the first dispensing box 4 to slide completely out of the box body 1, further facilitating the user to put food into the first dispensing box 4 and the second dispensing box 5 respectively.
[0044] Reference Figures 1 to 9As shown, each latching assembly includes a resilient latch 25, a slot 26, and an unlocking lever 27. The resilient latch 25 is fixedly mounted on the outer wall of the second dispensing box 5. The slot 26 is integrally formed on the box body 1. The unlocking lever 27 is fixedly mounted on the outer wall of the box body 1. When food needs to be dispensed, the operator manually grasps the handle 3 to open the lid 2, and then manually pulls the two handles 6 on the second dispensing box 5 to pull the second dispensing box 5 upwards. Since the resilient latch 25 is fixedly connected to the second dispensing box 5, and the slot 26 is designed on the box body 1, and the resilient latch 25, slot 26, and unlocking lever 27 are designed in the same vertical direction, it allows the operator to pull the second dispensing box 5 upwards and slide it onto the box body 1. At the top, the elastic buckle 25 engages with the slot 26, thus locking the second dispensing box 5 above the box body 1. When the food needs to be stored after dispensing, the operator simultaneously presses down on the two connecting rods 8. Since the two ends of each connecting rod 8 are fixedly connected to the two unlocking rods 27, the unlocking rods 27 are inserted into the slots, thereby pushing the elastic buckle 25 to disengage from the slot 26, thus unlocking the second dispensing box 5. Then, the operator pushes the two handles 6 on the second dispensing box 5, causing the second dispensing box 5 to slide down into the box body 1 to the initial position, thereby causing the wedge block 23 to descend and fit against the bottom of the box body 1.
[0045] Reference Figures 1 to 9 As shown, the first packaging box 4 is connected to the box body 1 by two return springs 28. The outer wall of the first packaging box 4 and the inner wall of the box body 1 are respectively fixedly connected to the two ends of the two return springs 28. The inner wall of the box body 1 is symmetrically provided with slide rails 29, which are fixedly connected to the box body 1. The outer wall of the first packaging box 4 is symmetrically provided with sliders 30, which are fixedly connected to the first packaging box 4. The slide rails 29 and sliders 30 are slidably connected. When the first packaging box 4 slides horizontally along the guide rail 31, since the first packaging box 4 and the box body 1 are respectively fixedly connected to the two ends of the two return springs 28, the return springs 28 change from the initial state to the stretched state. When the wedge block 23 descends to fit against the bottom of the box body 1, the return springs 28 change from the stretched state back to the initial state, thereby causing the first packaging box 4 to slide along the slide rail 29 to the initial position, realizing the reset of the first packaging box 4.
[0046] Reference Figures 1 to 9As shown, two guide rails 31 are symmetrically arranged on the inner wall of the box body 1. Each guide rail 31 is fixedly connected to one end of the inner wall of the box body 1. Two L-shaped plates 32 are symmetrically arranged at the bottom of the second packaging box 5. Each L-shaped plate 32 is fixedly connected to the second packaging box 5, and each L-shaped plate 32 is slidably connected to one guide rail 31. The two guide rails 31 and the two L-shaped plates 32 enable the second packaging box 5 to remain stable when sliding vertically, reduce the shaking of the food inside the second packaging box 5, and improve the packaging effect of this packaging box. When storing food, the bottom of the guide rail 31 fits tightly with the L-shaped plate 32, which provides support for the second packaging box 5 and improves the stability of the food stored in this packaging box.
[0047] Reference Figures 1 to 9 As shown, each slide plate 21 has two symmetrical grooves 33 on its top for the limiting plate 22 to slide. The two grooves 33 allow the limiting plate 22 to slide stably on the slide plate 21, thereby adjusting the distance between the two limiting plates 22 so that the packaging box can meet the requirements of dispensing food of different quantities and limiting the food, thus improving the practicality and flexibility of the packaging box.
Claims
1. An adjustable food packaging box, comprising a box body (1), a lid (2), and a handle (3), wherein the lid (2) is disposed on the top of the box body (1), and the box body (1) and the lid (2) are rotatably connected, and the handle (3) is fixedly disposed on the top of the lid (2), characterized in that: It also includes a dispensing mechanism, a sliding mechanism, and a fixing mechanism; The dispensing mechanism is located inside the box body (1). The dispensing mechanism includes a first dispensing box (4), a second dispensing box (5), two handles (6), two centering components, and two clamping components. The first dispensing box (4) is slidably disposed on the inner wall of the box body (1). The second dispensing box (5) is disposed between the first dispensing box (4) and the box cover (2), and the second dispensing box (5) is slidably connected to the box body (1). The two handles (6) are symmetrically disposed on the top of the second dispensing box (5). The two centering components are respectively disposed on the first dispensing box (4) and the second dispensing box (5). Each clamping component is disposed on a centering component. The sliding mechanism is located at the bottom of the box body (1). The sliding mechanism includes two U-shaped plates (7) and two pushing components. The two pushing components are symmetrically arranged between the first dispensing box (4) and the box body (1). Each U-shaped plate (7) is arranged between the second dispensing box (5) and a pushing component. The fixing mechanism includes two connecting rods (8) and four buckle assemblies. The four buckle assemblies are symmetrically arranged on the box body (1), and each connecting rod (8) is fixed between two buckle assemblies.
2. The adjustable food packaging box according to claim 1, characterized in that: Each centering component includes a rotating rod (9), a rotating shaft (10), a guide rod (11), an L-shaped block (12), a sliding rod (13), an insert block (14), a limiting plate (15), a telescopic spring (16), two connecting plates (17), two U-shaped rods (18), and several limiting slots (19). The rotating rod (9) is rotatably located at the bottom of the first dispensing box (4). The two connecting plates (17) are symmetrically arranged at both ends of the rotating rod (9), and each connecting plate (17) is hinged to one end of the rotating rod (9). Each U-shaped rod (18) is fixedly mounted on a connecting plate (17). The rotating shaft (10) is rotatably located at the bottom of the first dispensing box (4), and the rotating shaft (10) is hinged to one end of the rotating rod (9). The rotating rod (9) is fixedly connected, and several limiting grooves (19) are equally spaced at the bottom of the first packaging box (4). The L-shaped block (12) is fixedly mounted on the rotating shaft (10). The sliding rod (13) is slidably mounted on the outer wall of the L-shaped block (12). The guide rod (11) is fixedly mounted on one end of the sliding rod (13). The limiting plate (15) is fixedly mounted on the end of the guide rod (11) away from the sliding rod (13). The insert (14) is fixedly mounted on the limiting plate (15), and the insert (14) is inserted into one of the limiting grooves (19). The telescopic spring (16) is sleeved on the outer wall of the guide rod (11). The limiting plate (15) and the L-shaped block (12) are respectively pressed against the two ends of the telescopic spring (16).
3. An adjustable food packaging box according to claim 2, characterized in that: Each clamping assembly includes a support plate (20), two slide plates (21) and two limiting plates (22). The support plate (20) is fixed on the first packaging box (4). The two slide plates (21) are symmetrically arranged on the support plate (20), and each slide plate (21) is slidably connected to the support plate (20). Each limiting plate (22) is slidably arranged on one slide plate (21), and each limiting plate (22) is fixedly connected to one end of a U-shaped rod (18) away from the connecting plate (17).
4. An adjustable food packaging box according to claim 3, characterized in that: Each push assembly includes a wedge (23) and a roller (24). The wedge (23) is slidably disposed inside the box (1), and each wedge (23) is fixedly connected to one end of a U-shaped plate (7) away from the second packaging box (5). The roller (24) is rotatably disposed at one end of the bottom of the first packaging box (4), and the outer edge of the roller (24) is in contact with the outer wall of the wedge (23).
5. An adjustable food packaging box according to claim 4, characterized in that: Each buckle assembly includes an elastic buckle (25), a slot (26), and an unlocking lever (27). The elastic buckle (25) is fixed on the outer wall of the second packaging box (5), the slot (26) is integrally formed on the box body (1), and the unlocking lever (27) is fixed on the outer wall of the box body (1).
6. An adjustable food packaging box according to claim 5, characterized in that: The first packaging box (4) is connected to the box body (1) by two return springs (28), and the outer wall of the first packaging box (4) and the inner wall of the box body (1) are respectively fixedly connected to the two ends of the two return springs (28). The inner wall of the box body (1) is symmetrically provided with slide rails (29), which are fixedly connected to the box body (1). The outer wall of the first packaging box (4) is symmetrically provided with sliders (30), which are fixedly connected to the first packaging box (4), and the slide rails (29) and sliders (30) are slidably connected.
7. An adjustable food packaging box according to claim 6, characterized in that: Two guide rails (31) are symmetrically arranged on the inner wall of the box (1). Each guide rail (31) is fixedly connected to one end of the inner wall of the box (1). Two L-shaped plates (32) are symmetrically arranged at the bottom of the second packaging box (5). Each L-shaped plate (32) is fixedly connected to the second packaging box (5), and each L-shaped block (12) is slidably connected to a guide rail (31).
8. An adjustable food packaging box according to claim 7, characterized in that: Each slide (21) has two symmetrical grooves (33) on its top for the limiting plate (22) to slide.