A carton packaging structure
Patent Information
- Application Number
- CN202522323276.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-03
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-03
AI Technical Summary
Existing cardboard box packaging structures are difficult to divide easily in large spaces, and additional partitions lack stable fixation, are prone to displacement, and affect the protective performance of the goods.
The push plate is driven to move by a combination of a slotted frame, a sliding frame and a threaded pin shaft, and a rotating collar, a threaded tube and a threaded rod. Combined with a telescopic rod guide and an elastic protective plate, it can achieve flexible division and stable fixation.
It enables flexible division and stable fixation of the internal space of the carton, reduces the shaking and collision of items, and improves the packaging user experience and protective performance.
Smart Images

Figure CN224929465U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of packaging technology, and in particular relates to a cardboard box packaging structure. Background Technology
[0002] Cardboard boxes are packaging containers made from corrugated cardboard, single-layer cardboard, and other paper materials through processes such as die-cutting, creasing, stapling, or gluing. They typically consist of a box body, a lid, and a bottom, and can be designed as folding, fixed, or nesting structures according to requirements. Their core function is to protect the contents, isolate them from external impacts, compression, and moisture, while facilitating handling, storage, and transportation. Cardboard boxes have advantages such as lightweight, low cost, easy recycling, and customizability, and are widely used in food, electronics, daily chemicals, logistics, and other fields. They are one of the most commonly used packaging forms in modern commodity circulation and can also achieve brand display and information labeling functions through printing.
[0003] The structure of a cardboard box refers to the combination, connection, and spatial design of the various components that make up the box, such as the box body, lid, bottom, and partitions. It is achieved through processes such as die-cutting, creasing, folding, stapling, or gluing. It needs to be designed according to the size, weight, and protection requirements of the contents. Common types include folding, fixed, nesting, and drawer-type boxes. Its core function is to ensure the sealing and stability of the packaging, while also taking into account the convenience of loading and unloading and the utilization rate of storage space. Some structures also incorporate functions such as easy opening, recyclability, or partitioning, which directly affect the protective performance, user experience, and cost control of the cardboard box.
[0004] Currently, the existing cardboard box packaging structure has obvious limitations in practical use. Its internal space is usually difficult to divide conveniently. When the internal space of the box is large, if no division is made, the internal items are prone to collision during handling or transportation, which may cause damage. Even if the space needs to be divided, additional partitions are required. However, these additional partitions often lack a stable fixing structure and are prone to shifting or tipping over when shaken. They cannot effectively divide and protect the items, and may even cause secondary friction between the loose partitions and the items, ultimately affecting the overall packaging performance and the protective performance of the items.
[0005] To address the aforementioned issues, this application proposes a cardboard box packaging structure. Utility Model Content
[0006] The purpose of this utility model is to provide a cardboard box packaging structure that solves the problems mentioned in the background art.
[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0008] This utility model is a cardboard box packaging structure, including a box body. The inner wall of the box body is fixedly connected with two sets of slot frames. Each slot frame has two sliding frames slidably connected inside. The inside of the box body is provided with two partition plates, two push plates, and two sets of threaded pins. Each set of threaded pins has four pins. The side of each set of sliding frames that is close to each other is fixedly connected to the two sides of the partition plate. The side of each set of threaded pins that is far from each other is threaded through the sliding frame and contacts the inner wall of the slot frame.
[0009] Each of the two partition plates has a rotating collar and two sets of telescopic rods fixedly connected to its opposite side. The telescopic ends of the two sets of telescopic rods are fixedly connected to the opposite side of the two push plates. Each of the two rotating collars has a threaded tube fixedly connected to its opposite side. Each threaded tube has a threaded rod threaded inside. The opposite ends of the two threaded rods are fixedly connected to the opposite side of the two push plates.
[0010] Furthermore, a protective cover is snapped onto the upper surface of the box, and auxiliary plates are fixedly connected to both sides of the protective cover.
[0011] Furthermore, each of the slot frames has two reinforcing plates fixedly connected to its upper and bottom surfaces, and the side of each set of reinforcing plates that is far apart from each other is fixedly connected to the inner wall of the box.
[0012] Furthermore, each of the partition plates has two connecting blocks fixedly connected to its upper surface, and each set of connecting blocks has a handle fixedly connected to its upper surface.
[0013] Furthermore, a reinforcing ring is fixedly connected to the outer surface of each of the telescopic rods, and the side of each set of reinforcing rings that is close to each other is fixedly connected to the side of each of the two partition plates that is far from each other.
[0014] Furthermore, protective plates are fixedly connected to the opposite sides of the two push plates, and each protective plate is made of elastic cardboard.
[0015] Furthermore, each of the threaded tubes has a screw ring fixedly connected to its outer surface, and each screw ring has anti-slip holes arranged at equal intervals on its outer surface.
[0016] This utility model has the following beneficial effects:
[0017] This utility model, through the cooperation of the slot frame, sliding frame and threaded pin, can flexibly adjust the position of the partition plate in the box, realize the division of the internal space of the box as needed, solve the problem of inconvenient space division of traditional cardboard boxes and the need to add additional partitions, and adapt to the packaging needs of items of different sizes.
[0018] This utility model uses the transmission of rotating collar, threaded tube and threaded rod to drive the push plate to move towards the object. With the guidance of telescopic rod, the push plate can stably fit the object. Combined with the protective plate of elastic cardboard, it can not only avoid hard contact and scratch the object, but also enhance the limiting and fixing effect of the object, and reduce the shaking and collision of the object during transportation.
[0019] In summary, this utility model has a reasonable structural design. Through the coordinated action of components such as the slot frame, partition plate, and push plate, it combines the flexibility of space division with the stability of item fixation, while retaining the advantages of lightweight and easy operation of cardboard boxes. It effectively improves the packaging user experience and the protection performance of the internal items, and is suitable for packaging and transportation scenarios of various items.
[0020] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;
[0023] Figure 2 This is a cross-sectional view of the box body in this utility model;
[0024] Figure 3 This is a schematic diagram of the partition plate in this utility model;
[0025] Figure 4 This is a schematic diagram of the push plate in this utility model;
[0026] Figure 5 This is a schematic diagram of the rotating collar in this utility model;
[0027] The attached diagram lists the components represented by each number as follows:
[0028] In the diagram: 1. Box body; 2. Protective cover; 3. Support plate; 4. Slot frame; 5. Reinforcing plate; 6. Push plate; 7. Divider plate; 8. Sliding frame; 9. Threaded pin; 10. Connecting block; 11. Handle; 12. Reinforcing ring; 13. Telescopic rod; 14. Protective plate; 15. Rotating collar; 16. Anti-slip hole; 17. Tightening ring; 18. Threaded pipe; 19. Threaded rod. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0031] Please see Figure 1-5 As shown, this utility model is a cardboard box packaging structure, including a box body 1. Two sets of slot frames 4 are fixedly connected to the inner wall of the box body 1. Two sliding frames 8 are slidably connected inside each slot frame 4. The inside of the box body 1 is provided with two partition plates 7, two push plates 6 and two sets of threaded pins 9. Each set of threaded pins 9 has four threads. The side of each set of sliding frames 8 that is close to each other is fixedly connected to the two sides of the partition plate 7 respectively. The ends of each set of threaded pins 9 that are far apart from each other are threaded through the sliding frame 8 and contact the inner wall of the slot frame 4.
[0032] Two partition plates 7 are fixedly connected to rotating collars 15 and two sets of telescopic rods 13 on their opposite sides. The telescopic ends of the two sets of telescopic rods 13 are fixedly connected to the opposite sides of the two push plates 6. The inner rings of the two rotating collars 15 are fixedly connected to threaded tubes 18 on their opposite sides. Each threaded tube 18 is threaded with a threaded rod 19 inside. The opposite ends of the two threaded rods 19 are fixedly connected to the opposite sides of the two push plates 6.
[0033] In this embodiment, the rotating collar 15 is divided into an inner ring and an outer ring. The outer ring is fixedly connected to the partition plate 7, and the inner ring is nested inside the outer ring and can rotate freely relative to the outer ring. The two form a rotating pair through the cooperation of the inner protrusion and the annular groove, which not only ensures the flexible rotation of the inner ring, but also restricts its axial movement. At the same time, the threaded tube 18 is fixedly connected to the inner ring of the rotating collar 15. When the inner ring is rotated, the threaded tube 18 rotates synchronously with it. With the help of the threaded engagement between the threaded tube 18 and the threaded rod 19, the threaded rod 19 is driven to extend and retract axially, thereby driving the push plate 6 to move smoothly, so as to achieve precise fitting and positioning of the item.
[0034] The upper surface of the housing 1 is fitted with a protective cover 2, and both sides of the protective cover 2 are fixedly connected with an assist plate 3. In this embodiment, the top sealing protection is achieved by the snap-fit structure between the protective cover 2 and the housing 1, and the assist plate 3 makes it easier to open and close the protective cover 2 by hand, thus improving the ease of operation.
[0035] In this embodiment, two reinforcing plates 5 are fixedly connected to the upper and lower surfaces of each slot frame 4. The side of each set of reinforcing plates 5 that is far apart from each other is fixedly connected to the inner wall of the box body 1. In this embodiment, the support structure of the reinforcing plates 5 enhances the stability of the connection between the slot frame 4 and the box body 1, and prevents the slot frame 4 from deforming when bearing load or sliding adjustment.
[0036] Each partition plate 7 has two connecting blocks 10 fixedly connected to its upper surface, and each set of connecting blocks 10 has a handle 11 fixedly connected to its upper surface. In this embodiment, the cooperation between the handle 11 and the connecting block 10 makes it easy for the operator to hold and pull the partition plate 7, realize the rapid adjustment of the partition position, and improve the efficiency of space division.
[0037] Each telescopic rod 13 has a reinforcing ring 12 fixedly connected to its outer surface. The side of each set of reinforcing rings 12 that is close to each other is fixedly connected to the side of each of the two partition plates 7 that is far from each other. In this embodiment, the reinforcing rings 12 strengthen the connection between the telescopic rod 13 and the partition plate 7, preventing the telescopic rod 13 from tilting or falling off when it is under tension, and ensuring the stability of the guide.
[0038] In this embodiment, protective plates 14 are fixedly connected to the two push plates 6 on their opposite sides. Each protective plate 14 is made of elastic cardboard. In this embodiment, the protective plate 14 made of elastic cardboard forms a buffer layer when the push plate 6 is in contact with the item, so as to avoid hard contact causing indentations or scratches to the surface of the item and improve the protective effect.
[0039] Each threaded tube 18 is fixedly connected to a rotating ring 17 on its outer surface. Each rotating ring 17 has anti-slip holes 16 arranged at equal intervals on its outer surface. In this embodiment, the rotating ring 17 increases the contact area between the hand and the threaded tube 18, and the anti-slip holes 16 enhance the friction, making the rotation adjustment of the threaded tube 18 easier and less prone to slipping.
[0040] Understandably, this utility model, through the synergistic action of the slot frame 4, the sliding frame 8, and the threaded pin 9, can flexibly adjust the position of the partition plate 7 inside the box 1, dividing the internal space of the box 1 as needed. This effectively solves the problem of inconvenient partitioning of traditional cardboard boxes and the need for additional partitions, adapting to the packaging needs of items of different sizes. At the same time, by transmitting power through the rotating collar 15, the threaded tube 18, and the threaded rod 19, the push plate 6 can be moved towards the item. Combined with the guiding effect of the telescopic rod 13, the push plate 6 can stably fit the item, which not only enhances the limiting and fixing effect of the item, but also reduces the probability of the item shaking and colliding during transportation.
[0041] One specific application of this embodiment is as follows: In use, first, hold the assist plate 3 to open the protective cover 2. According to the size of the item to be packaged, pull the divider plate 7 by the handle 11 to drive the sliding frame 8 to slide in the slot frame 4. After adjusting the divider plate 7 to a suitable position, tighten the threaded pin 9 so that the end of the threaded pin 9 abuts against the inner wall of the slot frame 4 to fix the position of the divider plate 7 and complete the internal space division of the box 1. Then, put the item into the divided space, hold the turning ring 17 and rotate it. With the help of the anti-slip holes 16 to increase the friction, the threaded tube 18 is driven. As the inner ring of the rotating collar 15 rotates synchronously, the threaded tube 18 and the threaded rod 19 are threadedly engaged, driving the threaded rod 19 to push the push plate 6 towards the item. The telescopic rod 13 extends and retracts accordingly and acts as a guide until the protective plate 14 on the push plate 6 is tightly attached to the surface of the item. Finally, the protective cover 2 is snapped back onto the top of the box 1 to complete the packaging of the item. During transportation, the reinforcing plate 5 ensures the stability of the tray 4, the reinforcing ring 12 prevents the telescopic rod 13 from tilting, and the protective plate 14 prevents the item from being scratched. The overall structure achieves stable protection and fixation of the item.
[0042] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0043] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A cardboard box packaging structure, comprising a box body (1), characterized in that: The inner wall of the box (1) is fixedly connected with two sets of slot frames (4). Each slot frame (4) has two sliding frames (8) slidably connected inside. The box (1) is provided with two partition plates (7), two push plates (6) and two sets of threaded pins (9). Each set of threaded pins (9) has four pins. The side of each set of sliding frames (8) that is close to each other is fixedly connected to the two sides of the partition plate (7). The side of each set of threaded pins (9) that is far away from each other is threaded through the sliding frame (8) and contacts the inner wall of the slot frame (4). Two of the partition plates (7) are fixedly connected to rotating collars (15) and two sets of telescopic rods (13) on their opposite sides. The telescopic ends of the two sets of telescopic rods (13) are fixedly connected to the opposite sides of the two push plates (6). The inner rings of the two rotating collars (15) are fixedly connected to threaded tubes (18) on their opposite sides. Each threaded tube (18) is threaded with a threaded rod (19). The opposite ends of the two threaded rods (19) are fixedly connected to the opposite sides of the two push plates (6).
2. The cardboard box packaging structure according to claim 1, characterized in that: The upper surface of the box (1) is fitted with a protective cover (2), and both sides of the protective cover (2) are fixedly connected with an auxiliary plate (3).
3. The cardboard box packaging structure according to claim 1, characterized in that: Two reinforcing plates (5) are fixedly connected to the upper and lower surfaces of each of the slots (4), and the side of each set of reinforcing plates (5) that is far apart from each other is fixedly connected to the inner wall of the box (1).
4. The cardboard box packaging structure according to claim 1, characterized in that: Each of the partition plates (7) has two connecting blocks (10) fixedly connected to its upper surface, and each set of connecting blocks (10) has a handle (11) fixedly connected to its upper surface.
5. A cardboard box packaging structure according to claim 1, characterized in that: Each of the telescopic rods (13) has a reinforcing ring (12) fixedly connected to its outer surface. The side of each set of reinforcing rings (12) that is close to each other is fixedly connected to the side of each of the two partition plates (7) that is far away from each other.
6. The cardboard box packaging structure according to claim 1, characterized in that: Each of the two push plates (6) has a protective plate (14) fixedly connected to one side away from the other, and each protective plate (14) is made of elastic cardboard.
7. A cardboard box packaging structure according to claim 1, characterized in that: Each of the threaded tubes (18) has a fixedly connected screw ring (17) on its outer surface, and each screw ring (17) has anti-slip holes (16) arranged at equal intervals on its outer surface.
