Paper card assembly, packaging structure and packaging product
Patent Information
- Application Number
- CN202522699556.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-19
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-19
AI Technical Summary
Existing paper card components have poor structural stability, making it difficult to provide stable support and cushioning. Traditional foam materials occupy a lot of space and are not environmentally friendly.
Design a paper card assembly including a first paper card and a second paper card. By setting interlocking grooves on the bending part and the support part, the two are ensured to be stably assembled, thereby enhancing the structural strength and stability. The force is also unloaded by the unloading groove line.
It improves the structural stability and cushioning effect of paper card components, effectively supports and protects the packaged items, reduces the risk of damage, and is environmentally friendly.
Smart Images

Figure CN224929485U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging technology, specifically to a paper card assembly, including the packaging structure of the paper card assembly and the packaged product using the packaging structure. Background Technology
[0002] Existing packaging products include the packaged item and the packaging structure. The packaging structure typically includes a box and cushioning components. The packaged item is placed inside the box, and the box and cushioning components work together to support and cushion the packaged item, thus protecting it from damage during storage and transportation. Existing cushioning components mainly fall into two categories: The first type uses a paper card component as the buffer assembly; for example... Figure 1 As shown, the paper card assembly 9 consists of a first paper card 91 and a second paper card 92. The first paper card 91 has a first insertion slot 911, and the second paper card 92 has a second insertion slot 921. The first paper card 91 and the second paper card 92 are inserted and engaged through the first insertion slot 911 and the second insertion slot 921 to form a cross support structure (ideally). However, this structure has the disadvantage of poor structural stability. In actual use, the first paper card 91 and the second paper card 92 are prone to relative rotation around the engagement point of the first insertion slot 911 and the second insertion slot 921, causing the first paper card 91 and the second paper card 92 to stick together, thus losing their support and cushioning capabilities. See [reference needed]. Figure 2 .
[0003] The second type uses foam materials for cushioning components, such as pearl cotton and expanded polystyrene (EPS) foam boards. Although these types of cushioning components have good cushioning performance, they have disadvantages such as large space occupation, high packaging costs, and poor environmental performance (difficult to degrade). Utility Model Content
[0004] The primary objective of this invention is to provide a paper card assembly with good structural stability that can provide stable support for the packaged items.
[0005] The second objective of this invention is to provide a packaging structure incorporating the aforementioned paper card assembly.
[0006] The third objective of this utility model is to provide a packaging product employing the above-described packaging structure.
[0007] To achieve the first objective of this utility model, it provides a paper card assembly, including a first paper card and a second paper card. The first paper card includes a first support portion and two first bending portions, with the first support portion connected between the two first bending portions. The first bending portions are bendable relative to the first support portion and have a first insertion slot. The second paper card includes a second support portion, with two second insertion slots. When the first and second paper cards are assembled, both first bending portions are bent relative to the first support portion so that they are positioned opposite each other. The first distance between the two first bending portions matches the second distance between the two second insertion slots. The two second insertion slots correspond one-to-one with the two first insertion slots, and each second insertion slot is inserted into and engaged with a corresponding first insertion slot.
[0008] As can be seen from the above, the design of the first and second paper cards ensures that, after assembly, the two first insertion slots and two second insertion slots effectively prevent relative movement of the two first bending parts and the second support parts, ensuring the overall stability of the assembled paper card assembly. This provides stable support for the packaged item and achieves a certain cushioning effect, thus buffering the packaged item. Furthermore, compared to traditional paper card assemblies that provide line support for the packaged item, this paper card assembly can provide surface support for the packaged item through the first support part, thereby improving the support and cushioning effect for the packaged item.
[0009] A further embodiment is that the second card also includes two second bends, and the second support is connected between the two second bends. The second bends are provided with a third insertion slot; the first bends are provided with a fourth insertion slot. The two first bends correspond one-to-one with the two second bends, and the fourth insertion slot is engaged with the corresponding third insertion slot.
[0010] As can be seen from the above, the second paper card is provided with a second bending part and a third insertion groove, and a fourth insertion groove is provided on the first bending part to cooperate with the third insertion groove. This allows the second paper card to further enhance the reliability of its assembly with the first paper card, and improve the overall structural strength and stability of the paper card assembly after assembly, preventing the first and second paper cards from twisting relative to each other, and enabling the paper card assembly to withstand greater pressure.
[0011] A further proposed solution is to arrange the two first bends in a centrally symmetrical manner and the two second bends in a mirror-symmetrical manner.
[0012] As can be seen from the above, this design makes the assembled paper card assembly have a centrally symmetrical structure, which can better improve the support stability of the paper card assembly and the overall structural strength.
[0013] A further improvement is that the second bend is provided with a stress relief groove, the first end of which is connected to the bottom end of the first boundary line of the second bend and the second support, the second end of which is located at the top of the second bend, and the stress relief groove is inclined to the first boundary line.
[0014] As can be seen from the above, the design of the unloading groove allows the second bending part to deform to a certain extent, thereby better unloading the force applied to the paper card assembly and avoiding damage to the packaged items.
[0015] A further proposed solution is to have the fourth insertion slot located at the end near the first bend, and the third insertion slot located at the end near the second bend and away from the second support; after the first and second paper cards are assembled, the included angle between the second bend and the second support is between 45° and 55°.
[0016] As can be seen from the above, this design helps to improve the structural strength of the first and second bends after assembly, so that the paper card assembly has better support and cushioning effect; and by designing the included angle between the second bend and the second support, the structural strength of the first and second bends after assembly can be guaranteed, and the structural strength at the four corners of the first support can be avoided from being too low.
[0017] A further embodiment is that the first length of the first insertion slot is between 0.4 and 0.6 times the first height of the first bend in the extension direction of the first insertion slot; the second length of the second insertion slot is between 0.4 and 0.6 times the second height of the second bend in the extension direction of the second insertion slot; the third length of the third insertion slot is between 0.4 and 0.6 times the third height of the second bend in the extension direction of the third insertion slot; and the fourth length of the fourth insertion slot is between 0.4 and 0.6 times the fourth height of the first bend in the extension direction of the fourth insertion slot.
[0018] As can be seen from the above, this design can ensure the reliability of the connection between the first paper card and the second paper card, thereby ensuring the overall structural stability of the paper card assembly and enabling the paper card assembly to provide stable support and cushioning for the packaged items.
[0019] A further proposed solution is that there is a second boundary line between the first bending portion and the first support portion. The second boundary line is arc-shaped and protrudes towards the first support portion. The second boundary line includes a connecting segment and two dividing segments. The connecting segment connects the two dividing segments, and the first bending portion and the first support portion can be separated from each other through the dividing segments.
[0020] As can be seen from the above, this design causes the top of the first bending part to be arc-shaped after the first bending part is bent relative to the first support part. The first support part can deform along the arc top of the first bending part according to the partial structure of the packaged item. On the one hand, it adapts to the structure of the packaged item and provides stable support and cushioning protection for the packaged item. On the other hand, it also enables the first support part to be effectively supported by the first bending part, thereby improving the protective effect of the paper card assembly.
[0021] A further proposed solution is that, after the first and second paper cards are assembled, the highest point of the first support part located outside the first bend is at the same height as the highest point of the connecting section, or the highest point of the first support part located outside the first bend is lower than the highest point of the connecting section; the extension line of the first insertion slot passes through the highest point of the connecting section, and the top of the second support part is arc-shaped; both the first and second paper cards are made of corrugated paper.
[0022] As can be seen from the above, this design ensures that the first support part can provide the main support for the packaged item, avoids the second support part from interfering with the supporting role of the first support part, and also enables the second support part to have an auxiliary support function, thereby improving the overall support and cushioning effect of the paper card assembly on the packaged item.
[0023] To achieve the second objective of this utility model, this utility model provides a packaging structure, including a packaging box and the aforementioned paper card assembly, wherein the paper card assembly is placed inside the packaging box.
[0024] As can be seen from the above, the packaging structure, by setting up the aforementioned paper card components, can provide stable support for the packaged items and play a good cushioning role, thereby reducing the probability of damage to the packaged items during storage and transportation.
[0025] To achieve the third objective of this utility model, this utility model provides a packaging product, a ceiling light and the above-mentioned packaging structure, wherein the ceiling light is placed inside the packaging box, the paper card assembly is placed inside the ceiling light, and the first support part supports the lampshade of the ceiling light.
[0026] As can be seen from the above, by adopting the above packaging structure to support and cushion the ceiling light, the paper card assembly placed on the ceiling light can effectively support the lampshade of the ceiling light and play a cushioning role, reducing the risk of the lampshade of the ceiling light being crushed and deformed during the process. Attached Figure Description
[0027] Figure 1 This is a structural diagram of an existing paper card assembly.
[0028] Figure 2 This is a schematic diagram of the first and second paper cards of an existing paper card assembly being attached together.
[0029] Figure 3This is a schematic diagram illustrating how the packaging structure of this utility model protects a ceiling light.
[0030] Figure 4 This is an exploded view of an embodiment of the packaging product of this utility model, with some components omitted.
[0031] Figure 5 This is a structural diagram of the paper card assembly of an embodiment of the packaging product of this utility model.
[0032] Figure 6 This is an exploded view of the paper card assembly of an embodiment of the packaging product of this utility model.
[0033] Figure 7 This is an unfolded structural diagram of the first paper card in an embodiment of the packaging product of this utility model.
[0034] Figure 8 This is an unfolded structural diagram of the second paper card in an embodiment of the packaging product of this utility model.
[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation
[0036] Packaging Product Examples Combination Figure 3 and Figure 4 The packaged product 100 includes a ceiling light 101 and a packaging structure 102; wherein, the packaging structure 102 includes a packaging box 1021 and a paper card assembly 1022. The ceiling light 101 is placed inside the packaging box 1021, and the paper card assembly 1022 is placed inside the ceiling light 101, so that the paper card assembly 1022 supports the lampshade 1011 of the ceiling light 101, thereby helping to improve the support and cushioning effect of the ceiling light 101.
[0037] Combination Figure 5 and Figure 6 The paper card assembly 1022 includes a first paper card 1 and a second paper card 2. The first paper card 1 and the second paper card 2 are preferably made of corrugated paper to give the paper card assembly 1022 good cushioning and impact resistance. Alternatively, the first paper card 1 and the second paper card 2 can also be made of cardboard, preferably with a thickness between 2 mm and 4 mm, to ensure the supporting and cushioning performance of the paper card assembly 1022.
[0038] Combination Figure 7 The first paper card 1 includes a first support portion 11 and two first bending portions 12. The first support portion 11 is connected between the two first bending portions 12, and the first bending portions 12 can be bent relative to the first support portion 11, so that the two first bending portions 12 are arranged opposite to each other.
[0039] Preferably, a second boundary line 13 is provided between the first bending portion 12 and the first support portion 11. The second boundary line 13 is arc-shaped and protrudes towards the first support portion 11. The second boundary line 13 includes a connecting segment 131 and two dividing segments 132, with the connecting segment 131 connecting the two dividing segments 132. By providing the dividing segments 132, the first bending portion 12 and the first support portion 11 can be separated from each other through the dividing segments 132. This design results in the first bending portion 12 having an arc-shaped top after bending relative to the first support portion 11. Furthermore, the first support portion 11 can deform to conform to the arc-shaped structure of the lampshade 1011 of the ceiling light 101. On one hand, this adapts to the arc-shaped structure of the lampshade 1011, providing stable support and cushioning protection for the lampshade 1011. This ensures reliable support for the lampshade 1011 in case of stepping on its surface, thus preventing damage or deformation. On the other hand, the first support portion 11, after bending and deformation, can be reliably supported by the arc-shaped structure at the top of the first bending portion 12, ensuring the structural strength of the first support portion 11 and thereby improving the overall protective effect of the paper card assembly 1022.
[0040] Each first bend 12 is provided with a first insertion groove 121 and a fourth insertion groove 122. The first insertion groove 121 penetrates the first bend 12 in the thickness direction and extends from the side of the first bend 12 away from the first support 11 toward the first support 11. Preferably, the extension line of the first insertion groove 121 passes through the highest point of the connecting section 131. In addition, the first length L1 of the first insertion groove 121 is between 0.4 and 0.6 times the first height H1 of the first bend 12 in the extension direction of the first insertion groove 121; preferably, the first length L1 is about 0.5 times the first height H1.
[0041] The fourth insertion groove 122 penetrates the first bend 12 in the thickness direction and extends from the side of the first bend 12 away from the first support 11 toward the first support 11. The fourth length L4 of the fourth insertion groove 122 is between 0.4 and 0.6 times the fourth height H4 of the first bend 12 in the extension direction of the fourth insertion groove 122; preferably, the fourth length L4 is about 0.5 times the fourth height H4.
[0042] By designing the lengths of the first insertion slot 121 and the fourth insertion slot 122, the first bending part 12 and the second paper card 2 are reliably connected, while ensuring the structural strength of the first bending part 12, thereby ensuring the overall structural stability of the paper card assembly 1022 after assembly, so as to provide stable support and buffering effect for the ceiling light 101.
[0043] Combination Figure 8The second paper card 2 includes a second support portion 21 and two second bending portions 22. The second support portion 21 is connected between the two second bending portions 22, and the second bending portions 22 can be bent relative to the second support portion 21.
[0044] The top of the second support portion 21 is preferably arc-shaped to accommodate the arc-shaped structure of the lampshade 1011. The second support portion 21 is provided with two second insertion slots 211; the second distance W2 between the two second insertion slots 211 matches the first distance W1 between the two bent portions 12, i.e., the second distance W2 is approximately equal to the first distance W1, so that the two second insertion slots 211 correspond one-to-one with the two first insertion slots 121. The second insertion slot 211 penetrates the second support portion 21 in the thickness direction and extends from the arc-shaped top of the second support portion 21 to the bottom of the second support portion 21; the second length L2 of the second insertion slot 211 is between 0.4 and 0.6 times the second height H2 of the second bent portion 22 in the extension direction of the second insertion slot 211; preferably, the second length L2 is approximately 0.5 times the second height H2.
[0045] Each second bend 22 is provided with a third insertion slot 221. The two first bends 12 correspond one-to-one with the two second bends 22, such that the third insertion slot 221 on one second bend 22 can be engaged with the fourth insertion slot 122 on the corresponding first bend 12. The third insertion slot 221 penetrates the second bend 22 in the thickness direction and extends from the top to the bottom of the second bend 22. The third length L3 of the third insertion slot 221 is between 0.4 and 0.6 times the third height H3 of the second bend 22 in the extension direction of the third insertion slot 221. Preferably, the third length L3 is about 0.5 times the third height H3.
[0046] Similarly, by designing the length of the second insertion slot 211 and the length of the third insertion slot 221, the second support part 21 and the second bending part 22 can be reliably connected to the first paper card 1, while ensuring the structural strength of the second support part 21 and the second bending part 22, thereby ensuring the overall structural stability of the paper card assembly 1022 after assembly, so as to provide stable support and buffering effect for the ceiling light 101.
[0047] When the first paper card 1 and the second paper card 2 are assembled, both first bending portions 12 are bent relative to the first support portion 11 so that the two first bending portions 12 are positioned opposite each other. Then, a second insertion slot 211 is inserted into a corresponding first insertion slot 121, and a fourth insertion slot 122 is inserted into a corresponding third insertion slot 221.
[0048] Through the structural design of the first paper card 1 and the second paper card 2, after assembly, the mutual interlocking of the two first insertion slots 121 and the two second insertion slots 211 effectively constrains the relative displacement between the two first bending portions 12 and the second support portion 21, ensuring the overall structural stability of the paper card assembly 1022 after assembly. Simultaneously, the mutual interlocking of the third insertion slot 221 of the second bending portion 22 and the fourth insertion slot 122 of one of the first bending portions 12 further enhances the assembly reliability of the second paper card 2 and the first paper card 1, and strengthens the overall structural strength and stability of the paper card assembly 1022, effectively preventing relative torsional deformation and giving the paper card assembly 1022 stronger compressive strength. Therefore, the aforementioned cooperative structure of the first paper card 1 and the second paper card 2 provides stable support for the ceiling light 101, while also providing a buffering and protective function due to the inherent characteristics of the paper cards, effectively reducing the risk of impact and vibration to the ceiling light 101 during storage and transportation. In addition, compared with the traditional paper card assembly's line support for the packaged item, this paper card assembly 1022 provides surface support for the lampshade 1011 of the ceiling light 101 through the first support part 11, which effectively improves the uniformity of support and the buffer protection effect.
[0049] The fourth insertion slot 122 is located near the end of the first bending portion 12, and the third insertion slot 221 is located near the end of the second bending portion 22 away from the second support portion 21. After the first paper card 1 and the second paper card 2 are assembled, the included angle α between the second bending portion 22 and the second support portion 21 is between 45° and 55°. This design can improve the structural strength of the first bending portion 12 and the second bending portion 22 after assembly, giving the paper card assembly 1022 better support and cushioning performance. At the same time, by designing the included angle between the second bending portion 22 and the second support portion 21, the structural strength of the first bending portion 12 and the second bending portion 22 after assembly can be guaranteed, and the problem of insufficient structural strength at the four corners of the first support portion 11 can be avoided.
[0050] Preferably, the two first bends 12 are arranged in a centrally symmetrical manner, and the two second bends 22 are arranged in a mirror-symmetrical manner. This design makes the paper card assembly 1022 have a centrally symmetrical structure in the assembled state, so as to further enhance its support stability and overall structural strength.
[0051] Furthermore, a first boundary line 23 is provided between the second bending portion 22 and the second support portion 21. The second bending portion 22 is provided with a stress-relieving groove 222 at the first boundary line 23. The first end of the stress-relieving groove 222 is connected to the bottom end of the first boundary line 23, and the second end of the stress-relieving groove 222 is located at the top of the second bending portion 22. The stress-relieving groove 222 is designed to cause moderate deformation of the second bending portion 22, thereby effectively unloading the external force acting on the paper card assembly 1022 and preventing the paper card assembly 1022 from being damaged by the force.
[0052] Furthermore, after the first paper card 1 and the second paper card 2 are assembled, the highest point of the first support part 11 located outside the first bending part 12 is at the same height as the highest point of the connecting section 131, or the highest point of the first support part 11 located outside the first bending part 12 is lower than the highest point of the connecting section 131. Through this design, it is ensured that the first support part 11 forms the main support for the lampshade 1011 of the ceiling light 101, and the second support part 21 is prevented from interfering with the support function of the first support part 11. At the same time, the arc-shaped top structure of the second support part 21 can also play an auxiliary support role, thereby comprehensively improving the support and cushioning performance of the paper card assembly 1022 for the packaged items.
[0053] In summary, the packaging product 100 uses the aforementioned paper card assembly 1022 in conjunction with the packaging box 1021 to support and cushion the ceiling light 101, so that the paper card assembly 1022 assembled inside the ceiling light 101 can effectively support the lampshade 1011 and play a cushioning role, thereby reducing the risk of the lampshade 1011 of the ceiling light 101 collapsing and deforming under pressure during storage and transportation.
[0054] Finally, it should be emphasized that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A paper card assembly, comprising a first paper card and a second paper card, characterized in that: The first paper card includes a first support portion and two first bending portions. The first support portion is connected between the two first bending portions. The first bending portions can be bent relative to the first support portion. The first bending portions are provided with a first insertion groove. The second paper card includes a second support portion, on which two second insertion slots are provided; When the first paper card and the second paper card are assembled, both first bending portions are bent relative to the first support portion so that the two first bending portions are positioned opposite each other. The first distance between the two first bending portions matches the second distance between the two second insertion slots. The two second insertion slots correspond one-to-one with the two first insertion slots, and one second insertion slot is inserted into and engaged with the corresponding one first insertion slot.
2. The paper card assembly according to claim 1, characterized in that: The second paper card also includes two second bends, the second support is connected between the two second bends, and the second bend is provided with a third insertion groove; The first bending portion is provided with a fourth insertion slot, and the two first bending portions correspond one-to-one with the two second bending portions. One of the fourth insertion slots is inserted into and engaged with a corresponding third insertion slot.
3. The paper card assembly according to claim 2, characterized in that: The two first bends are arranged in a centrally symmetrical manner, and the two second bends are arranged in a mirror symmetrical manner.
4. The paper card assembly according to claim 3, characterized in that: The second bending portion is provided with a stress relief groove. The first end of the stress relief groove is connected to the bottom end of the first boundary line of the second bending portion and the second support portion. The second end of the stress relief groove is located at the top of the second bending portion. The stress relief groove is inclined to the first boundary line.
5. The paper card assembly according to claim 4, characterized in that: The fourth insertion slot is provided at the end near the first bending portion, and the third insertion slot is provided at the end near the second bending portion away from the second support portion; After the first paper card and the second paper card are assembled, the included angle between the second bent portion and the second support portion is between 45° and 55°.
6. The paper card assembly according to claim 5, characterized in that: The first length of the first insertion slot is between 0.4 and 0.6 times the first height of the first bent portion in the extension direction of the first insertion slot; The second length of the second insertion slot is between 0.4 and 0.6 times the second height of the second bend in the extension direction of the second insertion slot; The third length of the third insertion slot is between 0.4 and 0.6 times the third height of the second bent portion in the extension direction of the third insertion slot; The fourth length of the fourth insertion slot is between 0.4 and 0.6 times the fourth height of the first bend in the extension direction of the fourth insertion slot.
7. The paper card assembly according to any one of claims 1 to 6, characterized in that: There is a second boundary line between the first bending portion and the first supporting portion. The second boundary line is arc-shaped and the arc protrudes toward the first supporting portion. The second boundary line includes a connecting segment and two dividing segments. The connecting segment connects the two dividing segments, and the first bending portion and the first supporting portion can be separated from each other through the dividing segments.
8. The paper card assembly according to claim 7, characterized in that: After the first paper card and the second paper card are assembled, the highest point of the first support portion outside the first bending portion is at the same height as the highest point of the connecting section, or The highest point of the first support portion is located outside the first bend portion, which is lower than the highest point of the connecting segment. The extension line of the first insertion slot passes through the highest point of the connecting section, and the top of the second support part is arc-shaped; Both the first and second paper cards are made of corrugated paper.
9. A packaging structure, including a packaging box, characterized in that, It also includes a paper card assembly as described in any one of claims 1 to 8, the paper card assembly being placed inside the packaging box.
10. Packaged product, ceiling light, characterized in that, It also includes the packaging structure as described in claim 9, wherein the ceiling light is placed inside the packaging box, the paper card assembly is placed inside the ceiling light, and the first support portion supports the lampshade of the ceiling light.
