Foldable and convertible paper box

Abstract

The utility model discloses a foldable and convertible paper box which comprises a paper box body, the paper box body is composed of a bottom plate and surrounding plates symmetrically arranged on the bottom plate, holding belts used for hand lifting are symmetrically installed on the bottom plate, the two ends of each surrounding plate are fixedly connected with the bottom plate, first folding marks are symmetrically arranged on the bottom plate, and second folding marks are symmetrically arranged on the bottom plate. Second creases are arranged at the positions, corresponding to the first creases, of the two coamings. According to the utility model, the first crease and the second crease are correspondingly arranged on the bottom plate and the surrounding plate; flexible switching from a flat second working area to a three-dimensional first working area is achieved through cooperation with a magnetic attraction fixing structure and a second magnetic attraction piece of a surrounding plate and a bottom plate, the folding carton can be folded to be in a flat state when not in use, storage space occupation is greatly reduced, and the problem that a traditional carton is large in occupied space when in use is solved; when the foldable carton is used, the surrounding plates are rapidly fixed through magnetic attraction to form a stable three-dimensional space, the defects that a traditional foldable carton is prone to loosening and toppling over after being unfolded are overcome, and storage convenience and use stability are both considered.

Description

Technical Field

[0001] This utility model relates to the field of paper box technology, and more specifically, to a foldable and convertible paper box. Background Technology

[0002] Foldable cardboard boxes are widely used in everyday storage, gift wrapping, and portable item carrying due to their small footprint and ease of storage. Whether it's organizing small items at home, carrying personal belongings when traveling, or simple gift wrapping, users need cardboard boxes that can be folded for storage to save space, while also possessing a certain degree of practicality and structural stability.

[0003] In existing technologies, most foldable cardboard boxes adopt a single folding structure design, which can only achieve the basic "unfold-fold" function. Although some products have added simple storage structures, the overall design is relatively crude. However, these cardboard boxes have certain problems in actual use: on the one hand, the storage space lacks flexible partitioning capabilities, and small items of different sizes are easily mixed together and difficult to access quickly. Moreover, the structural stability after folding is poor, and they are easily loosened and deformed by external impacts or during carrying, affecting the user experience. On the other hand, the protective performance of existing cardboard boxes is limited. Items are easily damaged by external friction when stored, and the lack of effective sealing and fixing structures makes it easy for items to fall out. In addition, the functions of existing foldable cardboard boxes are relatively limited, only meeting basic storage or carrying needs. They cannot adapt to diverse usage scenarios such as hanging items or assisting in fixing, and their convenience and functional expandability need to be further improved. Therefore, we urgently need a foldable and transformable cardboard box to solve the above problems. Utility Model Content

[0004] One objective of this invention is to provide a new technical solution for a foldable and convertible cardboard box. Through the matching creases of the base plate and the side plate, magnetic fixing components, storage partitions, and protective cloth covering design, the cardboard box can flexibly switch between three-dimensional storage and flat storage, improve structural stability, meet the needs of classified storage, and is scratch-resistant and wear-resistant, making it suitable for use in multiple scenarios.

[0005] According to a first aspect of the present invention, a foldable and convertible cardboard box is provided, comprising a cardboard box, the cardboard box being composed of a base plate and side panels symmetrically arranged on the base plate, the base plate being symmetrically equipped with handles for carrying, both ends of the side panels being fixedly connected to the base plate, the base plate being symmetrically provided with first creases, and the two sets of side panels being provided with second creases corresponding to the first creases, the side panels forming a first working area when their sides abut against the base plate, and forming a second working area when their sides detach from the base plate, the base plate being provided with an extension portion for improving ease of use.

[0006] Optionally, the extension includes a placement groove on the base plate, in which a partition for separating space is inserted. Both sets of the enclosure plates are provided with insertion grooves adapted to the partitions. When the partition is inserted into the insertion groove, the partition divides the first working area into two cavities.

[0007] Optionally, the number of the insertion slots is at least two sets, and the two sets of insertion slots are equally spaced on the enclosure.

[0008] Optionally, a first placement bag is symmetrically sewn on the base plate. A first snap fastener is provided at the opening of the first placement bag. A first magnetic piece is placed inside the first placement bag. When the first magnetic piece is located in the first placement bag, the opening is closed by the first snap fastener to form an installation area.

[0009] Optionally, a second placement bag is symmetrically sewn onto the enclosure. A second snap fastener is provided at the opening of the second placement bag. A second magnetic piece is placed inside the second placement bag. When the second magnetic piece is located in the second placement bag, the opening is closed by the second snap fastener to form an installation area. In the first working area, the second magnetic piece and the first magnetic piece magnetically attract each other to form a fixing area.

[0010] Optionally, a flip cover is fixedly connected to one of the enclosures, and a third magnetic piece is fixedly installed on the other enclosure. When the flip cover and the third magnetic piece are magnetically attracted, the flip cover forms a closed area on the first working area.

[0011] Optionally, a strip of fabric is sewn onto the flap, and hanging loops for hanging are sewn onto the strip of fabric in a linear array.

[0012] Optionally, the partition is provided with a third crease for bending.

[0013] Optionally, storage bags for placing items are sewn onto both sets of panels.

[0014] Optionally, both the base plate and the surrounding plate are covered with protective fabric for protection.

[0015] 1. According to one embodiment of this disclosure, the foldable and convertible cardboard box, through the first crease and the second crease correspondingly provided on the bottom plate and the side plate, combined with the magnetic fixing structure of the side plate and the bottom plate and the second magnetic piece, realizes the flexible switching between "flat second working area - three-dimensional first working area": ​​when idle, it can be folded into a flat shape, which greatly reduces the storage space occupied and solves the problem of traditional cardboard boxes taking up a lot of space when idle; when in use, the side plate is quickly fixed by magnetic attraction to form a stable three-dimensional space, avoiding the defects of traditional foldable cardboard boxes being easy to loosen and tip over after unfolding, and taking into account both storage convenience and usage stability.

[0016] 2. According to one embodiment of this disclosure, the foldable and convertible cardboard box constructs a layered and classified storage system and multi-scenario adaptability through removable / foldable partitions, storage bags inside the side panels, and hanging rings on the flip-top: the partitions can adjust the width of the partitions through different insertion slots to achieve classified storage of items of different sizes, solving the problems of single storage space and easy mixing of items in traditional cardboard boxes; the storage bags can be used to store slender and small items, further refining the storage dimensions; the hanging rings support the hanging use of the cardboard box, breaking through the single-scenario limitation of traditional cardboard boxes that can only be laid flat / carried by hand, while the protective cloth covering the bottom plate and side panels is scratch-resistant and wear-resistant, effectively protecting the items inside the box and the cardboard box itself, and improving the overall service life.

[0017] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0019] Figure 1 This is a schematic diagram of the unfolded structure of a foldable and transformable cardboard box in one embodiment;

[0020] Figure 2 This is a schematic diagram of the unfolded structure of a foldable and transformable cardboard box in one embodiment;

[0021] Figure 3 This is a schematic diagram of the partition structure of a foldable and transformable cardboard box in one embodiment;

[0022] Figure 4 This is a schematic diagram of the first and second magnetic absorbing pieces of a foldable and transformable paper box in one embodiment;

[0023] Figure 5 This is a schematic diagram of the protective fabric structure of a foldable and transformable cardboard box in one embodiment.

[0024] Figure 6 This is a top view of a foldable and transformable cardboard box in one embodiment.

[0025] Figure 7 This is a schematic diagram of the partial assembly of the base plate and side panels of a foldable and convertible cardboard box in one embodiment;

[0026] Figure 8 This is a schematic diagram of the assembly of the base plate and side panels of a foldable and convertible cardboard box in one embodiment.

[0027] The diagram shows the following: 1. Base plate; 2. Side panel; 3. Handle strap; 4. First crease; 5. Second crease; 6. Storage slot; 7. Divider; 8. Insert slot; 9. First storage pocket; 10. First snap fastener; 11. First magnetic closure; 12. Second storage pocket; 13. Second snap fastener; 14. Second magnetic closure; 15. Flip flap; 16. Third magnetic closure; 17. Fabric strip; 18. Hanging loop; 19. Third crease; 20. Storage bag; 21. Protective fabric. Detailed Implementation

[0028] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0029] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0030] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0031] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0032] like Figure 1-8 As shown, a foldable and convertible cardboard box includes a cardboard box consisting of a base plate 1 and side panels 2 symmetrically arranged on the base plate 1. Both the base plate 1 and the side panels 2 are covered with protective cloth 21 for protection.

[0033] Here, the protective fabric 21 is made of wear-resistant Oxford cloth or flexible cotton cloth, and adopts a tight-fitting wrapping design. Its edges are fixedly connected to the edges of the base plate 1 and the side plate 2 through a fine sewing process, completely avoiding any creases during the wrapping process, ensuring that the protective fabric 21 does not pull or wrinkle when the cardboard box is folded. The thickness of the protective fabric 21 is controlled between 0.3 and 0.5 mm, which ensures the protective effect without increasing the overall thickness of the cardboard box or the folding resistance.

[0034] Furthermore, this protective structure effectively solves the problem of easy wear and scratches on the surface of existing cardboard boxes. The protective cloth 21 can block external friction from damaging the main body of the cardboard box, while preventing the inner wall of the cardboard box from scratching the stored items. The flexible material of the protective cloth 21 can also improve the grip of the cardboard box and avoid the discomfort caused by the hard cardboard directly contacting the skin, thus balancing protection and user comfort.

[0035] A handle 3 for carrying is symmetrically installed on the base plate 1. Both ends of the side panel 2 are fixedly connected to the base plate 1. A first crease 4 is symmetrically provided on the base plate 1. A second crease 5 is provided on the two sets of side panels 2 corresponding to the first crease 4. When the side of the side panel 2 abuts against the base plate 1, a first working area is formed. When the side of the side panel 2 separates from the base plate 1, a second working area is formed.

[0036] Here, the grip strap 3 uses a wide design of the same material as the protective fabric 21, with a width of 2-3cm. Its two ends are fixed to the symmetrical edges of the base plate 1 through a double-stitching process. The stitched area is no less than 3cm long, ensuring that the grip strap 3 is firmly connected and has a strong load-bearing capacity, capable of supporting items up to 5kg. The first crease 4 and the second crease 5 are both pre-set crease structures, with a crease depth of 1 / 2 the thickness of the cardboard, and the two are precisely aligned to form a continuous folding path. The fixed connection between the side panel 2 and the base plate 1 adopts an integrated cutting + edge stitching reinforcement, ensuring connection strength without affecting folding flexibility. The first working area is a three-dimensional storage space formed by the vertical standing of the side panel 2, with a volume suitable for storing small everyday items. The second working area is a flat state formed by folding the side panel 2 along the creases towards the base plate 1, with a thickness that is only the sum of the thicknesses of the base plate 1 and the side panel 2.

[0037] Furthermore, the wide design of the grip strap 3 distributes the force when carrying it, avoiding the problem of hand strain caused by narrow straps. The double-stitching process ensures structural stability when carrying it and prevents breakage. The precise alignment design of the first crease 4 and the second crease 5 makes the folding and transformation of the cardboard box smooth and effortless. Repeated folding is less likely to cause creases and breakage, extending its service life. The switching between the first and second working areas not only meets the daily storage capacity needs, but also solves the problem of large space occupation when not in use, achieving flexible adaptation of "unfolding when in use and storing when not in use".

[0038] The base plate 1 is provided with an extension section for improving ease of use. The extension section includes a placement groove 6 on the base plate 1. A partition 7 for dividing space is inserted into the placement groove 6. Both sets of surrounding plates 2 are provided with insertion grooves 8 that are adapted to the partition 7. When the partition 7 is inserted into the insertion groove 8, the partition 7 divides the first working area into two cavities. There are at least two sets of insertion grooves 8. The two sets of insertion grooves 8 are equidistantly provided on the surrounding plates 2. The partition 7 is provided with a third crease 19 for bending.

[0039] Here, the placement slot 6 is a groove integrally cut into the base plate 1. Its width is precisely matched to the thickness of the partition 7, and its depth is 2 / 3 of the thickness of the base plate 1, ensuring that the partition 7 does not loosen after insertion and does not affect the flatness of the base plate 1. The partition 7 is made of the same rigid cardboard as the main body of the box, covered with a protective cloth 21, and the edges are rounded to avoid scratching the items. The third fold 19 is set along the center line of the partition 7, and the fold depth is the same as the first fold 4, so that the partition 7 can be folded along the fold and inserted into the placement slot 6 for storage. The insertion slot 8 is a strip-shaped groove integrally cut into the side panel 2. The width of the slot is larger than the thickness of the partition 7, and the spacing between adjacent insertion slots 8 is 3-5cm. Different insertion slots 8 can be selected according to the size of the items to achieve the adjustment of the partition width.

[0040] Furthermore, this extension section solves the problems of limited storage space and easy mixing of items in existing cardboard boxes. The partition 7 can be flexibly adjusted in size through different combinations of insertion slots 8 to accommodate the classified storage of items of different sizes, such as jewelry and makeup brushes, stationery and small tools. The third fold 19 allows the partition 7 to be folded and stored in the placement slot 6, without taking up extra space when not in use, ensuring the integrity of the cardboard box's shape transformation. The rounded corner design of the partition 7 and the protective cloth 21 covering it further enhance the safety of use and prevent damage caused by sharp edges.

[0041] A first placement bag 9 is symmetrically sewn onto the base plate 1. A first snap fastener 10 is provided at the opening of the first placement bag 9. A first magnetic piece 11 is placed inside the first placement bag 9. When the first magnetic piece 11 is located in the first placement bag 9, the opening is closed by the first snap fastener 10 to form an installation area. A second placement bag 12 is symmetrically sewn onto the surrounding plate 2. A second snap fastener 13 is provided at the opening of the second placement bag 12. A second magnetic piece 14 is placed inside the second placement bag 12. When the second magnetic piece 14 is located in the second placement bag 12, the opening is closed by the second snap fastener 13 to form an installation area. In the first working area, the second magnetic piece 14 and the first magnetic piece 11 magnetically attract to form a fixing area.

[0042] Here, both the first placement bag 9 and the second placement bag 12 are made of the same material as the protective cloth 21, forming a rectangular bag structure that perfectly matches the size of the magnetic clasp. The first snap fastener 10 and the second snap fastener 13 are small nylon snap fasteners sewn onto the edge of the bag opening, completely securing the magnetic clasp when closed, preventing it from shifting during use. Both the first magnetic clasp 11 and the second magnetic clasp 14 are made of soft magnetic strip material, with the magnetic strength controlled between 0.5 and 1N, ensuring effective magnetic fixation without causing difficulty in folding or changing due to excessive magnetic force. The installation areas for the magnetic clasps are located at the edge of the base plate 1 near the side plate 2 and at the bottom of the side plate 2, respectively, ensuring precise alignment and magnetic attraction in the first working state.

[0043] Furthermore, this magnetic fixing structure effectively solves the problems of poor structural stability and easy loosening of existing foldable cartons after unfolding. Through the magnetic attraction of the first magnetic piece 11 and the second magnetic piece 14, the enclosure 2 is firmly fixed to the base plate 1 in the first working area state. Even if it is subjected to slight collision or shaking, it will not easily tip over or deform. The design of the bag placement and snap fasteners not only realizes the convenient installation and replacement of the magnetic pieces, but also avoids the wear caused by the magnetic pieces being directly exposed to the outside or the interference with the adsorption of items. The selection of soft magnetic strip material takes into account both the fixing effect and the folding flexibility, ensuring that the magnetic structure does not affect the shape transformation function of the cartons.

[0044] A flap 15 is fixedly connected to one of the enclosure panels 2, and a third magnetic piece 16 is fixedly installed on the other enclosure panel 2. When the flap 15 and the third magnetic piece 16 are magnetically attracted, the flap 15 forms a closed area in the first working area. A strip of cloth 17 is sewn on the flap 15, and hanging rings 18 for hanging are linearly sewn on the strip of cloth 17.

[0045] Here, the flip cover 15 is a plate-like structure integrally extended from the top of the enclosure 2, its size perfectly matching the opening size of the first working area. The edges are covered with protective fabric 21, and flexible creases are provided at the connection point with the enclosure 2 to ensure the flip cover 15 can be flexibly flipped. The third magnetic clasp 16 is embedded and installed on the inner top side of the corresponding enclosure 2, its surface flush with the protective fabric 21 without protrusion. The fabric strip 17 is made of wear-resistant nylon and is fixed to the outer center of the flip cover 15 by sewing at both ends; the spacing between adjacent hanging rings 18 is 1.5cm, and the stitching of the hanging rings 18 uses reinforced stitching to ensure load-bearing capacity, capable of supporting items up to 1kg.

[0046] Furthermore, the combination of the flip cover 15 and the third magnetic closure piece 16 solves the problem of existing cardboard boxes lacking an effective sealing structure and items easily falling out. The magnetic closure method is convenient to operate and ensures the closure is firm, preventing items from falling out of the box during carrying or storage. The design of the hanging ring 18 expands the usage scenarios of the cardboard box, allowing it to be held by hand, laid flat, or hung on hooks, bars, etc., such as hanging tableware in the kitchen, stationery on the desk, and toiletries in the bathroom, further improving space utilization. The flexible design of the fabric strip 17 allows the hanging ring 18 to be flexibly adjusted in angle as the flip cover 15 flips, without affecting the sealing and folding functions of the cardboard box.

[0047] Both sets of partition panels 2 are sewn with storage bags 20 for placing items.

[0048] Here, the storage bag 20 is a rectangular bag with its opening facing upwards. It is made of the same fabric as the protective cloth 21 and sewn onto the inside of the panel 2. Each panel 2 has 1-2 storage bags 20. The edges of the bag openings are rolled and sewn to enhance structural stability. The storage bags 20 are positioned to avoid the creases of the panel 2 and the magnetic strip installation area, ensuring that the storage bags 20 can be naturally fitted into the panel 2 for storage without obstruction when the panel 2 is folded.

[0049] Furthermore, the design of the storage bag 20 further refines the storage space, specifically for storing long and thin small items, avoiding the inconvenience caused by mixing these items with other items. Its internal installation method does not affect the neat appearance of the cardboard box, and it can be stored simultaneously with the side panel 2 when folded, without taking up extra space. The rolled-edge sewn bag opening not only improves the structural strength, but also avoids the use risks caused by sharp edges, taking into account both practicality and safety.

[0050] In this invention, in its initial state, the cardboard box has a flat second working area where the side panel 2 is attached to the bottom plate 1 along the first fold 4 and the second fold 5, facilitating storage. When needed, the side panel 2 is folded upwards along the folds so that the side of the side panel 2 abuts against the bottom plate 1. At this time, the first magnetic piece 11 in the first placement bag 9 of the bottom plate 1 and the second magnetic piece 14 in the second placement bag 12 of the side panel 2 are precisely aligned and magnetically attracted to form a fixed area, stably supporting the side panel 2 to form a three-dimensional first working area. If categorized storage is required, the partition 7 can be removed from the placement slot 6 of the bottom plate 1, and the appropriate insertion slot 8 on the side panel 2 can be inserted according to the size of the items to divide the first working area into multiple separate compartments. The upright cavity can be folded along the third crease 19 and placed back into the storage slot 6 when the partition 7 is not in use. When the flip cover 15 is closed, it magnetically closes with the third magnetic piece 16 of the corresponding side panel 2 to form a closed area to prevent items from falling out. The hanging ring 18 on the flip cover 15 can be hung on hooks or other positions to expand the usage scenarios. The storage bag 20 on the inside of the side panel 2 can store slender small items at the same time. When carrying, the handle 3 can stably bear the weight through the double-stitched structure. The protective cloth 21 on the surface of the bottom plate 1 and the side panel 2 plays a role in scratch prevention and wear resistance throughout the process. When storing again, it is only necessary to separate the magnetic structures, remove the partition 7, and attach the side panel 2 to the bottom plate 1 along the crease to restore the flat second working area.

[0051] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A foldable and convertible paper box, comprising the paper box, characterized in that: The cardboard box consists of a base plate (1) and side panels (2) symmetrically arranged on the base plate (1). The base plate (1) is symmetrically equipped with handles (3) for carrying. Both ends of the side panels (2) are fixedly connected to the base plate (1). The base plate (1) is symmetrically provided with first creases (4). The two sets of side panels (2) are provided with second creases (5) corresponding to the first creases (4). When the side of the side panel (2) abuts against the base plate (1), a first working area is formed. When the side of the side panel (2) separates from the base plate (1), a second working area is formed. The base plate (1) is provided with an extension part to improve ease of use.

2. The foldable and convertible cardboard box according to claim 1, characterized in that: The extension includes a placement groove (6) on the base plate (1), and a partition (7) for separating space is inserted into the placement groove (6). Both sets of enclosure plates (2) are provided with insertion grooves (8) that are adapted to the partition (7). When the partition (7) is inserted into the insertion groove (8), the partition (7) divides the first working area into two cavities.

3. A foldable and convertible cardboard box according to claim 2, characterized in that: The number of the plug slots (8) is at least two sets, and the two sets of plug slots (8) are equally spaced on the enclosure (2).

4. A foldable and convertible cardboard box according to claim 1, characterized in that: The base plate (1) is symmetrically sewn with a first placement bag (9). The opening of the first placement bag (9) is provided with a first snap fastener (10). The first magnetic piece (11) is placed inside the first placement bag (9). When the first magnetic piece (11) is located in the first placement bag (9), the opening is closed by the first snap fastener (10) to form an installation area.

5. A foldable and convertible cardboard box according to claim 1, characterized in that: The enclosure (2) is symmetrically sewn with second placement bags (12). The opening of the second placement bag (12) is provided with a second snap fastener (13). The second placement bag (12) contains a second magnetic piece (14). When the second magnetic piece (14) is located in the second placement bag (12), the opening is closed by the second snap fastener (13) to form an installation area. In the first working area, the second magnetic piece (14) and the first magnetic piece (11) magnetically attract to form a fixed area.

6. A foldable and convertible cardboard box according to claim 1, characterized in that: A flip cover (15) is fixedly connected to one of the enclosures (2), and a third magnetic piece (16) is fixedly installed on the other enclosure (2). When the flip cover (15) and the third magnetic piece (16) are magnetically attracted, the flip cover (15) forms a closed area on the first working area.

7. A foldable and convertible cardboard box according to claim 6, characterized in that: The flap (15) is sewn with a strip of cloth (17), and the strip of cloth (17) is sewn with a linear array of hanging rings (18) for hanging.

8. A foldable and convertible cardboard box according to claim 2, characterized in that: The partition (7) has a third crease (19) for bending.

9. A foldable and convertible cardboard box according to claim 1, characterized in that: Both sets of enclosure panels (2) are sewn with storage bags (20) for placing items.

10. A foldable and convertible cardboard box according to claim 1, characterized in that: Both the base plate (1) and the surrounding plate (2) are covered with protective cloth (21) for protection.

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