Folding packaging box

Abstract

The folding packaging box comprises two end plates, two side plates, a bottom plate, a first top plate and a second top plate, the two end plates are connected to the two ends of the bottom plate correspondingly, the two side plates are connected to the two sides of the bottom plate correspondingly, and the first top plate and the second top plate are rotationally connected with the two end plates correspondingly; the first top plate and the second top plate are rotatably connected with a first bending plate and a second bending plate respectively, the side plate is provided with an insertion opening, the first bending plate and the second bending plate operably abut against and are inserted into the insertion opening, the upper end of the insertion opening extends to the upper end of the side plate, the middle of the insertion opening is provided with an abutting portion, and the size of the abutting portion is larger than that of the upper end of the insertion opening. The lower ends of the first bent plate and the second bent plate are bent to form flanges capable of being unfolded, and the flanges abut against the abutting part. According to the packaging box, the inserting openings abut against the flanges, the loosening problem is avoided, obvious and unrecoverable traces can be left after the packaging box is opened, a user can easily judge whether the packaging box is opened or not, and the safety of the packaging box of the type is greatly improved.

Description

Technical Field

[0001] This application relates to the technical field of packaging boxes, and in particular to a folding packaging box. Background Technology

[0002] In the packaging industry, the ever-increasing demand for packaging for various products is driving the development of packaging box design. Among them, packaging boxes with interlocking lids are widely used in many product packaging applications due to their convenience and practicality.

[0003] This type of packaging box with a snap-fit ​​lid typically uses slots on the side panels. The lid is secured to the side panels by inserting a bent plate connected to the top panel into the slot, thus completing the sealing of the entire box. For example, the slotted structure and insert plate structure within the slot are described in Chinese invention application CN114394304A.

[0004] However, most packaging boxes currently use a flat, snap-fit ​​design. This design has revealed several problems in practical use. From a securing perspective, the uneven distribution of force when the snap-fit ​​top is subjected to external forces easily causes the bending plate to detach from the snap-fit, loosening the connection between the top and side panels. This severely compromises the packaging's protective function, making the product highly susceptible to damage during transportation and handling. Furthermore, regarding anti-tampering, the flat snap-fit ​​design allows anyone who opens the box to easily reinsert the bending plate, restoring it to its original state with virtually no visible signs of tampering. This poses a significant challenge for industries that require product integrity, making it difficult to guarantee product quality, safety, and market reputation. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this application is to provide a folding packaging box that can interlock between the bending plate and the side plate, thereby enhancing the safety and practicality of the packaging box.

[0006] The above-mentioned objective of this application is achieved through the following technical solution:

[0007] A folding packaging box includes two end plates, two side plates, a bottom plate, a first top plate, and a second top plate. The two end plates are respectively connected to the two ends of the bottom plate, and the two side plates are respectively connected to the two sides of the bottom plate. The first top plate and the second top plate are rotatably connected to the two end plates. A first bending plate and a second bending plate are rotatably connected to the first top plate and the second top plate, respectively. The side plates are provided with slots, and the first bending plate and the second bending plate are operably abutted against and inserted into the slots. The upper end of the slot extends to the upper end of the side plate, and the middle of the slot has an abutting portion. The size of the abutting portion is larger than the upper end of the slot. The lower ends of the first bending plate and the second bending plate are both bent to form unfoldable flanges, and the flanges abut against the abutting portion.

[0008] The present application further specifies that the socket has an upper section and a lower section, the upper section and the lower section are connected, the upper section extends to the upper end of the side plate, and the upper end of the lower section is larger than the upper section to form the abutment portion.

[0009] This application is further configured such that the lower segment gradually decreases in size from top to bottom.

[0010] This application further specifies that the socket is arrow-shaped, the upper section is rectangular, and the lower section is inverted triangular.

[0011] This application is further configured such that the flange of the first bending plate is bent in a direction opposite to the second bending plate, the flange of the second bending plate is bent in a direction opposite to the first bending plate, and the first bending plate, the second bending plate and their flanges form an arrow shape adapted to the socket.

[0012] This application is further configured to include a fixed housing formed by bending a plate-like structure, wherein the two end plates, the two side plates, the bottom plate, the first top plate and the second top plate together form an accommodating space, the fixed housing is disposed in the accommodating space, and the front of the fixed housing is provided with a plurality of tea canister placement slots.

[0013] The present application further provides that the back side of the fixed housing has a support portion, which is rotatably connected to the back side of the fixed housing.

[0014] This application is further configured such that the two end plates are respectively flexibly connected to both ends of the bottom plate, and the two side plates are respectively flexibly connected to both sides of the bottom plate.

[0015] This application is further configured to include four fixing plates, which are respectively connected to both sides of the two end plates, wherein the two oppositely arranged fixing plates are detachably connected.

[0016] This application further specifies that a display hole is provided on the first top plate.

[0017] In summary, the beneficial technical effects of this application are as follows:

[0018] 1. The socket of this application has a connecting part in the middle that is larger than the upper end. At the same time, the flanges formed by bending the lower ends of the first and second bending plates can abut against the connecting part. This structure allows the flanges and the connecting part to fit tightly when the top cover is subjected to external forces, effectively dispersing the force and preventing the bending plates from coming out of the socket. This greatly enhances the stability of the connection between the top cover and the side plate, and can provide reliable protection for the product during transportation and handling, reducing the risk of product damage due to loose packaging.

[0019] 2. This application features an interlocking structure formed by the flange and the abutment. When someone attempts to open the packaging box, they need to damage the flange and the abutment. This damage leaves obvious and difficult-to-restore marks. Unlike traditional straight connectors that can be easily restored to their original state, once the connection between the flange and the abutment is broken, the user can intuitively determine whether the packaging box has been opened. This provides strong protection for industries that need to ensure product integrity, effectively maintaining product quality and safety and market reputation. Attached Figure Description

[0020] Figure 1 This is a diagram of a folding packaging box.

[0021] Figure 2 This is a schematic diagram of the fixed housing.

[0022] Figure 3 This is a schematic diagram of the upper section, lower section, and connecting section.

[0023] Reference numerals: 1. Base plate; 2. Side plate; 21. Insertion port; 211. Upper section; 212. Lower section; 213. Abutment section; 3. End plate; 4. First top plate; 41. Display hole; 5. Second top plate; 6. First bending plate; 7. Second bending plate; 8. Flange; 9. Fixing plate; 10. Fixing shell; 101. Tea canister placement slot; 102. Support section. Detailed Implementation

[0024] The present application will be further described in detail below with reference to the accompanying drawings.

[0025] like Figures 1-3As shown, a folding packaging box includes two end plates 3, two side plates 2, a bottom plate 1, a first top plate 4, and a second top plate 5. The two end plates 3 are respectively connected to the two ends of the bottom plate 1, and the two side plates 2 are respectively connected to the two sides of the bottom plate 1. The first top plate 4 and the second top plate 5 are rotatably connected to the two end plates 3. A first bending plate 6 and a second bending plate 7 are respectively rotatably connected to the first top plate 4 and the second top plate 5. The side plate 2 is provided with an insertion slot 21. The first bending plate 6 and the second bending plate 7 are operable to abut against each other and be inserted into the insertion slot 21. The upper end of the insertion slot 21 extends to the upper end of the side plate 2. The middle part of the insertion slot 21 has an abutment portion 213. The size of the abutment portion 213 is larger than the upper end of the insertion slot 21. The lower ends of the first bending plate 6 and the second bending plate 7 are both bent to form unfoldable flanges 8, and the flanges 8 abut against the abutment portion 213.

[0026] Preferably, high-strength cardboard is selected as the material for making the folding packaging box. This material has good compression resistance, ensures that it is not easily damaged during folding, and is relatively inexpensive, making it suitable for mass production. Specifically, the height of the side panel 2 is the same as that of the end panel 3, and the bending angle is designed to be 90° to ensure a good fit with the insertion slot 21 of the side panel 2. The corrugated cardboard is precisely cut according to the design dimensions using high-precision die-cutting equipment. On the side panel 2, a specific shaped insertion slot 21 is made through die-cutting to ensure the precise dimensions of the abutment portion 213, so that the flange 8 can fit tightly together. At the same time, at the lower end of the first bending plate 6 and the second bending plate 7, an indentation bending process is used to create an unfoldable flange 8.

[0027] The unique mating structure between the flange 8 and the abutment part 213 effectively solves the problem of the bending plate easily coming off when the traditional straight socket 21 is subjected to uneven force. During transportation and storage, even when subjected to external forces such as bumps and compression, the connection between the top cover and the side plate 2 can be ensured to be stable, providing reliable protection for the product.

[0028] Due to the tight interlocking structure between the flange 8 and the contact part 213, once the packaging box is opened, this structure will inevitably be damaged, leaving obvious marks. This allows users to easily determine whether the packaging box has been opened, which is of great significance for industries that need to ensure product integrity.

[0029] Furthermore, such as Figure 3 As shown, the socket 21 has an upper section 211 and a lower section 212 connected together. The upper section 211 extends to the upper end of the side plate 2, and the upper end of the lower section 212 is larger than the upper section 211 to form an abutment portion 213.

[0030] During assembly, when inserting the first bending plate 6 and the second bending plate 7 into the socket 21, the operator needs to align the flange 8 with the upper section 211 and gently press down to allow the flange 8 to gradually slide into the abutment part 213. Due to the difference in size of the abutment part 213, there will be a noticeable locking sensation when the flange 8 enters, indicating that the installation is in place, ensuring the accuracy and convenience of installation.

[0031] The clearly defined upper section 211 and lower section 212 structure, as well as the dimensional difference of the abutment section 213, allow the bending plate flange 8 to be precisely positioned during insertion, avoiding problems such as incomplete installation or insecure fixation due to positional deviations, and further improving the overall stability of the packaging box.

[0032] The unique design of the abutment part 213 makes it difficult for the bending plate flange 8 to detach from the abutment part 213 without intentional opening, reducing the risk of the packaging box being accidentally opened due to vibration, collision and other unexpected factors during transportation, and better protecting the product.

[0033] This clear connector 21 structure makes it easy for quality inspectors to quickly check whether the connector 21 dimensions meet the standards and whether the bending plate and connector 21 fit well during the production process, which helps to improve the product qualification rate.

[0034] Furthermore, the lower section 212 gradually decreases in size from top to bottom. When designing the stamping die, parameters are precisely set so that the lower section 212 gradually decreases in size from top to bottom. For example, the upper section 211 has a width of 5mm, and the upper width of the lower section 212 is 7mm, so the lower section 212 gradually shrinks in size from top to bottom.

[0035] When inserting the first bending plate 6 and the second bending plate 7 into the socket 21, as the lower section 212 gradually decreases in size, the operator needs to slowly insert the flange 8 from the upper section 211. During this process, the angle needs to be adjusted appropriately so that the flange 8 can slide smoothly along the gradually narrowing space until the flange 8 fits tightly against the abutment part 213. After installation, gently shake the packaging box to check if it is securely installed.

[0036] The design of the lower section 212, which gradually decreases in size from top to bottom, creates a tight wedge structure after the bending plate flange 8 is inserted. As the insertion depth increases, the fit between the flange 8 and the lower section 212 of the insertion port 21 becomes stronger, resulting in a better fastening effect. This effectively prevents the bending plate from coming out due to external forces during transportation or storage, greatly enhancing the stability of the packaging box.

[0037] When someone attempts to open the packaging box, the wedge-shaped structure creates significant resistance, which the user can clearly perceive, serving as a warning sign. Simultaneously, the increased resistance also makes unauthorized opening more difficult, further ensuring product safety.

[0038] Furthermore, the socket 21 is arrow-shaped, the upper section 211 is rectangular, and the lower section 212 is inverted triangular. The arrow-shaped socket 21 and the inverted triangular lower section 212 provide precise guidance for the insertion of the bending plate, enabling operators to quickly and accurately insert the bending plate into the socket 21 during assembly, thereby improving assembly efficiency and reducing production time wastage caused by incorrect or uneven insertion.

[0039] Furthermore, its unique arrow-shaped appearance is more visually striking than the ordinary 21-shaped connector, making it easier for operators on the production line to identify and operate. It also leaves a lasting impression on consumers during product displays, enhancing the overall image of the product.

[0040] The upper section 211 is rectangular, and the lower section 212 is inverted triangular, which allows the bent plate to be effectively supported and fixed in both horizontal and vertical directions after insertion. The inverted triangular lower section 212 forms a tight wedge structure with the flange 8, further enhancing the stability of the packaging box and enabling it to better protect the product during transportation and storage.

[0041] Furthermore, the flange 8 of the first bending plate 6 bends in a direction opposite to the second bending plate 7, and the flange 8 of the second bending plate 7 bends in a direction opposite to the first bending plate 6. The first bending plate 6, the second bending plate 7 and their flange 8 form an arrow shape that matches the socket 21.

[0042] During assembly, the first bent plate 6 and the second bent plate 7 are placed against each other, with their flanges 8 in opposite positions. Then, the assembled bent plate is aligned with the arrow-shaped socket 21 and inserted starting from the upper end of the socket 21. During insertion, because the arrow shape formed by the bent plate and its flanges 8 matches the shape of the socket 21, it can naturally slide down along the contour of the socket 21 until the flanges 8 and the abutment 213 are tightly fitted. After insertion, gently shake the packaging box to check whether the connection between the bent plate and the socket 21 is secure.

[0043] The arrow-shaped structure formed by the first bending plate 6, the second bending plate 7, and their flanges 8 perfectly matches the arrow-shaped insertion port 21. After insertion, they fit tightly together, providing stable support in all directions. This tight fit effectively prevents the bending plates from coming out of the insertion port 21 due to external forces during transportation and storage, greatly enhancing the structural stability of the packaging box.

[0044] Furthermore, such as Figure 2 As shown, the package also includes a fixed housing 10 formed by bending a plate-like structure. The two end plates 3, two side plates 2, a bottom plate 1, a first top plate 4, and a second top plate 5 together form an accommodating space. The fixed housing 10 is located within this accommodating space, and its front side has multiple tea canister placement slots 101. When tea needs to be taken, the first top plate 4 and the second top plate 5 of the packaging box are opened, and the corresponding tea canister can be directly removed from the placement slot of the fixed housing 10. After use, the tea canister is returned to its placement slot, and the packaging box is closed.

[0045] The multiple tea canister placement slots 101 on the fixed housing 10 can accurately position each tea canister, preventing them from colliding and rubbing against each other inside the packaging box, effectively protecting the integrity of the tea canisters, and also preventing the tea leaves from scattering or getting damp during transportation due to vibration.

[0046] The fixed shell 10 makes full use of the internal space of the packaging box, allowing it to rationally accommodate multiple tea canisters and improving space utilization. This design is suitable for packaging multi-canister tea gift boxes, meeting the market's demand for diverse tea packaging.

[0047] The retaining shell 10, as an independent structure, is placed inside the packaging box, enhancing the overall structural stability of the box. When subjected to external pressure, the retaining shell 10 can share some of the pressure, further protecting the tea canister and tea leaves, and reducing product loss due to packaging damage.

[0048] Furthermore, the back of the fixed housing 10 has a support portion 102, which is rotatably connected to the back of the fixed housing 10. For example... Figure 2 As shown, the fixed housing 10 is formed by bending a single plate, while the support 102 on the back is formed by bending a portion of the plate after slotting.

[0049] When displaying tea products, the fixed housing 10 is removed from the storage space, and the support part 102 is turned out, so that the fixed housing 10 is tilted to support the fixed housing 10 for display, making it convenient for customers to view and take the tea canister.

[0050] The rotatable design of the support part 102 allows the fixed shell 10 to be displayed separately, presenting the tea products to consumers in a more beautiful and intuitive way, attracting customers' attention, and improving the product display effect and sales appeal.

[0051] Furthermore, the two end plates 3 are respectively bent and connected to the two ends of the bottom plate 1, and the two side plates 2 are respectively bent and connected to the two sides of the bottom plate 1. That is, the two end plates 3, the two side plates 2, the bottom plate 1, the first top plate 4, and the second top plate 5 can be flattened to form a shape as shown in the figure. Figure 1The box features a planar structure. The bendable connection design of the end plate 3, side plate 2, and bottom plate 1 makes assembly simple and convenient, requiring no complicated tools or techniques. Furthermore, it can be easily folded into a flat shape when not in use, significantly reducing space occupation, facilitating storage and transportation, and lowering warehousing costs.

[0052] Furthermore, such as Figure 1 The side plate 2 shown is formed by connecting an inner side plate and an outer side plate. The side plate 2 is bent along the connection between the inner side plate and the outer side plate to form a double-layer structure, which further enhances the stability and strength of the side plate 2. The socket 21 is opened on the inner side plate and the outer side plate from the connection between the inner side plate and the outer side plate. In this way, the socket 21 on the side plate 2 formed after the inner side plate and the outer side plate are bent will extend to the upper end of the side plate 2.

[0053] Furthermore, such as Figure 1 As shown, it also includes four fixing plates 9, which are respectively connected to both sides of the two end plates 3. The fixing plates 9 positioned opposite each other are detachably connected. The four fixing plates 9, connected to both sides of the two end plates 3 and detachably connected to each other, form a stable frame structure, effectively enhancing the overall strength of the packaging box. During transportation, it can better resist external pressure and protect the contents of the box.

[0054] Furthermore, a display hole 41 is provided on the first top plate 4. Preferably, a high-precision laser cutting machine is used to cut the display hole 41 on the first top plate 4 to ensure that the cut edge is neat and smooth, avoiding burrs that affect aesthetics and safety. The shape of the display hole 41 is designed according to the product characteristics, such as circular, square, or the outline shape of the product. Taking a circular display hole 41 as an example, it is convenient to display key parts or special features of the product.

[0055] More preferably, a transparent PVC film is placed over the display hole 41 and then tightly adhered to the top plate using a hot-pressing process. This protects the internal products from dust, moisture, and other contaminants without affecting the display effect through the film. Simultaneously, the PVC film possesses a certain degree of toughness, which can, to some extent, prevent direct impacts on the products.

[0056] During the product sales process, consumers can directly observe the product's appearance, color, material and other details through the display hole 41 without opening the packaging box, increasing the product's attractiveness and transparency and stimulating consumers' desire to buy.

[0057] The display hole 41 allows consumers to see some features of the product directly without opening the packaging, which protects the integrity of the product and effectively showcases its advantages, thereby enhancing its competitiveness in the market.

[0058] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A folding packaging box, comprising two end plates (3), two side plates (2), a bottom plate (1), a first top plate (4) and a second top plate (5), the two end plates (3) are connected to the two ends of the bottom plate (1) respectively, the two side plates (2) are connected to the two sides of the bottom plate (1) respectively, the first top plate (4) and the second top plate (5) are rotatably connected to the two end plates (3) respectively, the first top plate (4) and the second top plate (5) are rotatably connected with the first bending plate (6) and the second bending plate (7) respectively, the side plate (2) is provided with a socket (21), the first bending plate (6) and the second bending plate (7) are operatively abutted and inserted into the socket (21), characterized in that, The upper end of the socket (21) extends to the upper end of the side plate (2), the middle part of the socket (21) has an abutting part (213), the size of the abutting part (213) is larger than the upper end of the socket (21), the lower end of the first bending plate (6) and the second bending plate (7) are both bent to form a flange (8) which can be unfolded, and the flange (8) abuts against the abutting part (213).

2. The folding packet according to claim 1, characterized in that The socket (21) has an upper segment (211) and a lower segment (212), the upper segment (211) and the lower segment (212) are connected, the upper segment (211) extends to the upper end of the side plate (2), and the size of the upper end of the lower segment (212) is larger than that of the upper segment (211) to form the abutting part (213).

3. The folding packet of claim 2, wherein, The lower segment (212) gradually reduces in size from top to bottom.

4. The folding packet of claim 2, wherein The socket (21) is arrow-shaped, the upper segment (211) is rectangular, and the lower segment (212) is inverted triangular.

5. The folding carton of claim 4, wherein, The flange (8) of the first bending plate (6) is bent in a direction opposite to the second bending plate (7), the flange (8) of the second bending plate (7) is bent in a direction opposite to the first bending plate (6), and the first bending plate (6), the second bending plate (7) and the flange (8) thereof form an arrow shape matched with the socket (21).

6. The folding packet of claim 1, wherein, It also comprises a fixed shell (10) formed by bending a plate structure, two end plates (3), two side plates (2), the bottom plate (1), the first top plate (4) and the second top plate (5) form a containing space, the fixed shell (10) is arranged in the containing space, and the front surface of the fixed shell (10) is provided with a plurality of tea pot placing grooves (101).

7. The folding packet of claim 6, wherein, The back surface of the fixed shell (10) has a support part (102) which is rotatably connected with the back surface of the fixed shell (10).

8. The folding packet of claim 1, wherein, The two end plates (3) are respectively and bendably connected with the two ends of the bottom plate (1), and the two side plates (2) are respectively and bendably connected with the two sides of the bottom plate (1).

9. The folding packet of claim 1, wherein, It also comprises four fixed plates (9), and the four fixed plates (9) are respectively connected on the two sides of the two end plates (3), wherein the two oppositely arranged fixed plates (9) are detachably connected.

10. The folding packet of claim 1, wherein, The first top plate (4) is provided with a display hole (41).

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