A foldable paper inner tray and packaging box

Abstract

The utility model belongs to the packaging technical field especially relates to a kind of foldable paper inner support and packing box. Including front panel, and the article hole is arranged in the through of front panel;Corresponding to the article hole fixed in the lower surface of front panel, supporting member, supporting member includes the supporting bottom plate of rectangle, and the two opposite edges of supporting bottom plate are equipped with first side plate and second side plate, and the other two opposite edges are equipped with third side plate and fourth side plate, and first side plate and second side plate are connected and fixed to the lower surface of front panel, and one end of third side plate and fourth side plate is rotatably connected with supporting bottom plate, and the other end can abut or separate from the lower surface of front panel. The utility model not only retains supporting bottom plate, but also can realize the efficient folding of paper inner support, while ensuring good buffering and supporting performance, optimizing storage and transportation space, and improving the convenience of user use.

Description

Technical Field

[0001] This utility model belongs to the field of packaging technology, and in particular relates to a foldable paper inner tray and packaging box. Background Technology

[0002] In product packaging, paper trays are typically placed inside boxes to support and secure products, preventing damage from movement during transportation and storage, and providing necessary cushioning. With the increasing popularity of environmental awareness, paper trays have become the mainstream choice in the packaging industry due to their recyclable and biodegradable properties. However, traditional paper trays are mostly made of cardboard, with a fixed and non-foldable structure. They occupy a significant amount of vertical space during manufacturing and warehousing stacking, resulting in low space utilization efficiency and increased logistics and storage costs.

[0003] To overcome the problem of wasted space, some foldable paper tray designs have emerged in existing technologies. For example, the four sides of the tray's support groove are designed to be foldable for compression during stacking. However, such foldable designs typically omit the supporting base plate, resulting in the product being placed directly on the bottom of the packaging box. This structure not only weakens the overall cushioning performance of the tray but also causes the product to be unstable within the tray, or even shift. A more significant problem is that the exposed edges of the packaging box's bottom plate directly contact the product surface, easily scratching or abrading the surface during product placement, removal, and vibration and shaking during transportation, affecting the product's appearance and quality. In practical use, users cannot remove all items at once by removing the entire tray, causing inconvenience. Furthermore, the lack of a supporting base plate reduces the tray's protective performance, increasing the risk of damage, especially for fragile or delicate products.

[0004] Therefore, there is an urgent need for a paper tray and packaging box that can both retain the supporting base and allow for folding. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a foldable paper tray and packaging box that retains the supporting base while enabling efficient folding of the paper tray. This ensures good cushioning and support performance, optimizes storage and transportation space, and enhances user convenience.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A foldable paper insert, comprising: Front panel, wherein a storage hole is provided through the front panel; The support member, which is fixed to the lower surface of the front panel corresponding to the storage hole, includes a rectangular support base plate. Two opposite sides of the support base plate are provided with a first side plate and a second side plate, and the other two opposite sides are provided with a third side plate and a fourth side plate. The first side plate and the second side plate are connected and fixed to the lower surface of the front panel. One end of the third side plate and the fourth side plate are rotatably connected to the support base plate, and the other end can abut against or detach from the lower surface of the front panel. When the first side plate and the second side plate are perpendicular to the front panel and the third side plate and the fourth side plate abut against the front panel, the support member is in use; when the first side plate and the second side plate are tilted to one side and the third side plate and the fourth side plate are detached from the front panel, the support member is in a folded state.

[0007] Furthermore, a third bonding plate is rotatably connected to the end of the third side plate away from the supporting base plate. When the third side plate rotates to abut against and be perpendicular to the front panel, the third bonding plate adheres to the lower surface of the front panel. A fourth bonding plate is rotatably connected to the end of the fourth side plate away from the supporting base plate. When the fourth side plate rotates to abut against and be perpendicular to the front panel, the fourth bonding plate adheres to the lower surface of the front panel.

[0008] Furthermore, the height of the third side plate and the fourth side plate is greater than the height of the first side plate and the second side plate. When the third side plate or the fourth side plate is rotated to abut against and be perpendicular to the front panel, the supporting base plate will deform at the connection point with the third side plate or the connection point with the fourth side plate.

[0009] Furthermore, when the third side plate or the fourth side plate is rotated to abut against and be perpendicular to the front panel, the third bonding plate or the fourth bonding plate will be aligned with one edge of the front panel.

[0010] Furthermore, the lower surface of the front panel is provided with at least one support group, which consists of at least two adjacent support members. When both adjacent support members are in a folded state, the edge of the fourth bonding plate of one support member will abut against the edge of the third bonding plate of the other support member.

[0011] Furthermore, the lower surface of the front panel is provided with two support groups, each of which consists of two adjacent support members.

[0012] Furthermore, a first fixing plate is rotatably connected to the end of the first side plate away from the supporting base plate, and a second fixing plate is rotatably connected to the end of the second side plate away from the supporting base plate. The first fixing plate and the second fixing plate are connected and fixed to the front panel.

[0013] Furthermore, the front panel includes an outer layer plate and an inner layer plate that are attached to each other. The side of the inner layer plate is used to fix the support member. The placement hole includes a first through hole on the outer layer plate and a second through hole on the inner layer plate. The first fixing plate and the second fixing plate are connected and fixed to the sandwich between the outer layer plate and the inner layer plate through the second through hole.

[0014] Furthermore, the first fixing plate and the second fixing plate are glued to the interlayer between the outer layer plate and the inner layer plate.

[0015] This utility model also provides a packaging box, including a box body and a foldable paper inner tray, wherein the shape of the receiving cavity of the box body is adapted to the shape of the front panel, and the paper inner tray is installed in the box body in the use state.

[0016] The beneficial effects of this utility model are: This invention achieves switching between a support component in use and a folded state by setting rotatable third and fourth side plates, as well as fixedly connected first and second side plates, thereby reducing space occupation during storage and transportation. While maintaining the support base plate in use, it provides stable support and cushioning for items. The rotatable third and fourth bonding plates on the third and fourth side plates enhance the connection between the side plates and the front panel. The rotatable first and second fixing plates on the first and second side plates, connected and fixed to the front panel, improve the overall durability of the paper tray. This invention retains the support base plate while enabling efficient folding of the paper tray, optimizing storage and transportation space and improving user convenience while ensuring good cushioning and support performance. Attached Figure Description

[0017] Appendix Figure 1 This is a schematic diagram of the paper inner tray of this utility model; Appendix Figure 2 This is a schematic diagram of the exploded structure of the paper inner tray of this utility model; Appendix Figure 3 This is a structural schematic diagram of the paper inner tray support component of this utility model in use; Appendix Figure 4 This is a schematic diagram of the paper inner tray support component of this utility model in its unfolded state. Appendix Figure 5This is a schematic diagram of the paper inner tray support component of this utility model in a folded state; Appendix Figure 6 This is a structural schematic diagram of the packaging box of this utility model; The diagram shows the following labels: 1-front panel, 110-storage hole, 120-outer layer plate, 121-first through hole, 130-inner layer plate, 131-second through hole; 2-support piece, 210-support base plate, 220-first side plate, 230-second side plate, 240-third side plate, 250-fourth side plate, 260-third bonding plate, 270-fourth bonding plate, 280-first fixing plate, 290-second fixing plate; 3-box body. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0022] See appendix Figure 1 To be continued Figure 4 The illustration shows a specific embodiment of the foldable paper tray and packaging box provided by this utility model.

[0023] See appendix Figure 1 The foldable paper insert includes: Front panel 1, with a storage hole 110 extending through it; The support member 2, which is fixed to the lower surface of the front panel 1 corresponding to the storage hole 110, includes a rectangular support base plate 210. Two opposite sides of the support base plate 210 are provided with a first side plate 220 and a second side plate 230, and the other two opposite sides are provided with a third side plate 240 and a fourth side plate 250. The first side plate 220 and the second side plate 230 are connected and fixed to the lower surface of the front panel 1. One end of the third side plate 240 and the fourth side plate 250 is rotatably connected to the support base plate 210, and the other end can abut against or detach from the lower surface of the front panel 1. When the first side panel 220 and the second side panel 230 are perpendicular to the front panel 1 and the third side panel 240 and the fourth side panel 250 abut against the front panel 1, the support member 2 is in use; when the first side panel 220 and the second side panel 230 are tilted to one side and the third side panel 240 and the fourth side panel 250 are detached from the front panel 1, the support member 2 is in a folded state.

[0024] In the above embodiments, as shown in the appendix Figure 4 As shown, when the paper trays need to be stacked for storage, the third side panel 240 and the fourth side panel 250 detach from the front panel 1 and unfold to both sides, leaving only the first side panel 220 and the second side panel 230 connected to the front panel 1. The first side panel 220 and the second side panel 230 tilt to one side, forming a parallelogram shape, which reduces the height of the support member 2, as shown in the attached diagram. Figure 5 As shown; specifically, when the angle between the first side panel 220 and the second side panel 230 and the front panel 1 is 30 degrees, the height of the support member 2 is reduced to half of its usable height, effectively reducing longitudinal space occupation and improving space utilization during stacking. See Appendix Figure 3 When the paper tray is needed, the first side panel 220 and the second side panel 230 are perpendicular to the front panel 1, and the third side panel 240 and the fourth side panel 250 are rotated and folded to abut against the front panel 1. That is, the first side panel 220, the second side panel 230, the third side panel 240 and the fourth side panel 250 are all perpendicular to the front panel 1 and the supporting base plate 210. At this time, the supporting member 2 is in use, and items can be placed into the supporting member 2 from the upper surface of the front panel 1 through the storage hole 110. The supporting base plate 210 provides stable support and cushioning for items, making it easy for users to remove all items at once by taking out the paper tray.

[0025] See appendix Figure 3In the above embodiment, the end of the third side plate 240 away from the supporting base plate 210 is rotatably connected to a third bonding plate 260. When the third side plate 240 rotates to abut against and be perpendicular to the front panel 1, the third bonding plate 260 abuts against the lower surface of the front panel 1. The end of the fourth side plate 250 away from the supporting base plate 210 is rotatably connected to a fourth bonding plate 270. When the fourth side plate 250 rotates to abut against and be perpendicular to the front panel 1, the fourth bonding plate 270 abuts against the lower surface of the front panel 1. In this embodiment, the third bonding plate 260 and the fourth bonding plate 270 enhance the structural stability of the third side plate 240 and the fourth side plate 250 when they abut against the front panel 1, thereby improving the overall structural stability of the support member 2 and facilitating the paper inner tray to maintain its shape during repeated use.

[0026] See appendix Figure 3 In the above embodiment, the heights of the third side plate 240 and the fourth side plate 250 are greater than the heights of the first side plate 220 and the second side plate 230. When the third side plate 240 or the fourth side plate 250 rotates to abut against and be perpendicular to the front panel 1, the supporting base plate 210 will deform at the connection point with the third side plate 240 or the fourth side plate 250. In the embodiment, the heights of the first side plate 220 and the second side plate 230 are equal, and the heights of the third side plate 240 and the fourth side plate 250 are equal. The heights of the third side plate 240 and the fourth side plate 250 are only slightly greater than the heights of the first side plate 220 and the second side plate 230, such as 1 mm. Since the first side plate 220 and the second side plate 230 are fixedly connected to the front panel 1, the height of the supporting member 2 is fixed when the first side plate 220 and the second side plate 230 are perpendicular to the front panel 1, i.e., when in use. In this state, the heights of the third side plate 240 and the fourth side plate 250 are only slightly greater than the heights of the first side plate 220 and the second side plate 230. This allows the supporting base plate 210 to deform at its connection with either the third side plate 240 or the fourth side plate 250 when the third side plate 240 and the fourth side plate 250 are rotated and folded until they abut against and are perpendicular to the front panel 1. The deformation of the supporting base plate 210 acts in the opposite direction through the third side plate 240 and the fourth side plate 250 onto the third bonding plate 260 and the fourth bonding plate 270, causing the third bonding plate 260 and the fourth bonding plate 270 to adhere tightly to the front panel 1, increasing friction and improving structural stability.

[0027] See appendix Figure 3In the above embodiment, when the third side plate 240 or the fourth side plate 250 rotates to abut against and be perpendicular to the front panel 1, the third bonding plate 260 or the fourth bonding plate 270 will align with one edge of the front panel 1. In this embodiment, the edge of the third bonding plate 260 or the edge of the fourth bonding plate 270 is aligned with one edge of the front panel 1. When the paper tray is installed and placed inside the packaging box, the edge of the third bonding plate 260 or the edge of the fourth bonding plate 270 can abut against and be limited by the inner side of the packaging box, ensuring the structural stability of the paper tray support 2 inside the packaging box.

[0028] See appendix Figure 3 In the above embodiment, the lower surface of the front panel 1 is provided with at least one support member group, which consists of at least two adjacent support members 2. When both adjacent support members 2 are in a folded state, the edge of the fourth bonding plate 270 of one support member 2 will abut against the edge of the third bonding plate 260 of the other support member 2. In this embodiment, the edge of the fourth bonding plate 270 of the first support member 2 abuts against the edge of the third bonding plate 260 of the second support member 2, achieving a mutual limiting effect between the fourth bonding plate 270 of the first support member 2 and the third bonding plate 260 of the second support member 2, preventing relative movement. This ensures that the fourth side plate 250 of the first support member 2 and the third side plate 240 of the second support member 2 can be stably positioned perpendicular to the front panel 1, i.e., in the use state, further improving the structural stability of the support members 2. In this embodiment, the lower surface of the front panel 1 is provided with two support member groups, each consisting of two adjacent support members 2.

[0029] See appendix Figure 2 In the above embodiment, a first fixing plate 280 is rotatably connected to the end of the first side plate 220 away from the supporting base plate 210, and a second fixing plate 290 is rotatably connected to the end of the second side plate 230 away from the supporting base plate 210. The first fixing plate 280 and the second fixing plate 290 are connected and fixed to the front panel 1. In this embodiment, the first fixing plate 280 and the second fixing plate 290 are used to achieve a firm connection with the front panel 1, which helps to enhance the overall durability and deformation resistance of the paper inner tray, making the support component 2 more reliable in use.

[0030] See appendix Figure 2In the above embodiment, the front panel 1 includes an outer layer 120 and an inner layer 130 that are fitted together. The side of the inner layer 130 is used to fix the support member 2. The storage hole 110 includes a first through hole 121 on the outer layer 120 and a second through hole 131 on the inner layer 130. The first fixing plate 280 and the second fixing plate 290 are connected and fixed to the interlayer between the outer layer 120 and the inner layer 130 through the second through hole 131. The first fixing plate 280 and the second fixing plate 290 are glued and fixed to the interlayer between the outer layer 120 and the inner layer 130. In this embodiment, the first fixing plate 280 and the second fixing plate 290 are connected and fixed to the interlayer between the outer layer 120 and the inner layer 130 through the second through hole 131, realizing the concealed installation of the first fixing plate 280 and the second fixing plate 290, which facilitates the improvement of the appearance and structural integrity of the inner tray. Meanwhile, when the first fixing plate 280 and the second fixing plate 290 are sandwiched between the outer layer plate 120 and the inner layer plate 130, one side is glued and fixed to the outer layer plate 120 and the other side is glued and fixed to the inner layer plate 130. At the same time, the outer layer plate 120 and the inner layer plate 130 are glued and fixed together, which ensures a stable connection and fixation between the support member 2 and the front panel 1, making the structure more stable.

[0031] See appendix Figure 6 This embodiment also provides a packaging box, including a box body 3 and the aforementioned foldable paper inner tray. The shape of the receiving cavity of the box body 3 is adapted to the shape of the front panel 1, and the paper inner tray is installed inside the box body 3 in the use state. In this embodiment, when the paper inner tray is installed inside the box body 3 in the use state, the edge of the third bonding plate 260 or the edge of the fourth bonding plate 270 can abut against and be limited by the inner side of the box body 3, ensuring the structural stability of the support member 2 of the paper inner tray inside the packaging box.

[0032] In summary, this embodiment provides a foldable paper tray and packaging box. By setting rotatable third side plates 240 and fourth side plates 250, and fixedly connected first side plates 220 and second side plates 230, the support member 2 can switch between the use state and the folded state, thereby reducing space occupation during storage and transportation. At the same time, the support base plate is retained during use to provide stable support and cushioning for the items. By setting rotatable third bonding plates 260 and fourth bonding plates 270 on the third side plates 240 and fourth side plates 250, the connection between the side plates and the front panel 1 is enhanced. By setting rotatable first fixing plates 280 and second fixing plates 290 on the first side plates 220 and second side plates 230 and connecting and fixing them to the front panel 1, the overall durability of the paper tray is enhanced. This utility model retains the support base plate 210 and can achieve efficient folding of the paper tray. While ensuring good cushioning and support performance, it optimizes storage and transportation space and improves the convenience of use for users.

[0033] The embodiments described above are merely one of the preferred embodiments of this utility model. Ordinary variations and substitutions made by those skilled in the art within the scope of the technical solution of this utility model should be included within the protection scope of this utility model.

Claims

1. A foldable paper insert, characterized in that, include: Front panel (1), with a storage hole (110) through it. The support member (2) is fixed to the lower surface of the front panel (1) corresponding to the storage hole (110). The support member (2) includes a rectangular support base plate (210). Two opposite sides of the support base plate (210) are provided with a first side plate (220) and a second side plate (230). The other two opposite sides are provided with a third side plate (240) and a fourth side plate (250). The first side plate (220) and the second side plate (230) are connected and fixed to the lower surface of the front panel (1). One end of the third side plate (240) and the fourth side plate (250) are rotatably connected to the support base plate (210), and the other end can abut against or detach from the lower surface of the front panel (1). When the first side panel (220) and the second side panel (230) are perpendicular to the front panel (1) and the third side panel (240) and the fourth side panel (250) abut against the front panel (1), the support member (2) is in use; when the first side panel (220) and the second side panel (230) are tilted to one side and the third side panel (240) and the fourth side panel (250) are detached from the front panel (1), the support member (2) is in a folded state.

2. The foldable paper insert according to claim 1, characterized in that, The third side plate (240) is rotatably connected to a third bonding plate (260) at one end away from the supporting base plate (210). When the third side plate (240) is rotated to abut against and perpendicular to the front panel (1), the third bonding plate (260) abuts against the lower surface of the front panel (1). The fourth side plate (250) is rotatably connected to a fourth bonding plate (270) at one end away from the supporting base plate (210). When the fourth side plate (250) is rotated to abut against and perpendicular to the front panel (1), the fourth bonding plate (270) abuts against the lower surface of the front panel (1).

3. A foldable paper insert according to claim 2, characterized in that, The height of the third side plate (240) and the fourth side plate (250) is greater than the height of the first side plate (220) and the second side plate (230). When the third side plate (240) or the fourth side plate (250) rotates to abut against and be perpendicular to the front panel (1), the supporting base plate (210) will deform at the connection with the third side plate (240) or the connection with the fourth side plate (250).

4. A foldable paper insert according to claim 2, characterized in that, When the third side panel (240) or the fourth side panel (250) is rotated to abut against and be perpendicular to the front panel (1), the third bonding plate (260) or the fourth bonding plate (270) will align with one edge of the front panel (1).

5. A foldable paper insert according to claim 2, characterized in that, The lower surface of the front panel (1) is provided with at least one support group, which consists of at least two adjacent support members (2). When both adjacent support members (2) are in a folded state, the edge of the fourth bonding plate (270) of one of the support members (2) will abut against the edge of the third bonding plate (260) of the other support member (2).

6. A foldable paper insert according to claim 5, characterized in that, The lower surface of the front panel (1) is provided with two support groups, each of which consists of two adjacent support members (2).

7. A foldable paper insert according to any one of claims 2-6, characterized in that, The first side plate (220) is rotatably connected to a first fixing plate (280) at one end away from the supporting base plate (210), and the second side plate (230) is rotatably connected to a second fixing plate (290) at one end away from the supporting base plate (210). The first fixing plate (280) and the second fixing plate (290) are connected and fixed to the front panel (1).

8. A foldable paper insert according to claim 7, characterized in that, The front panel (1) includes an outer layer plate (120) and an inner layer plate (130) that are attached to each other. The side of the inner layer plate (130) is used to fix the support member (2). The storage hole (110) includes a first through hole (121) on the outer layer plate (120) and a second through hole (131) on the inner layer plate (130). The first fixing plate (280) and the second fixing plate (290) are connected and fixed to the interlayer between the outer layer plate (120) and the inner layer plate (130) through the second through hole (131).

9. A foldable paper insert according to claim 8, characterized in that, The first fixing plate (280) and the second fixing plate (290) are glued to the interlayer between the outer layer plate (120) and the inner layer plate (130).

10. A packaging box, characterized in that, The invention includes a box body (3) and a foldable paper insert as described in any one of claims 1-9, wherein the shape of the receiving cavity of the box body (3) is adapted to the shape of the front panel (1), and the paper insert is installed inside the box body (3) in the use state.

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