Foldable supporting paperboard in carton
By designing a foldable cardboard support structure, the problems of large space occupation and instability of cardboard support were solved, achieving the effects of convenient transportation and stable support.
Patent Information
- Application Number
- CN202520180824.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-05
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-05
AI Technical Summary
Existing cardboard box support boards cannot be folded, take up a lot of space, are inconvenient for bulk transportation, and are not stable enough during use.
Design a foldable support cardboard for the inside of a carton. The cardboard is connected by sliding, creases and strong adhesive to form a foldable L-shaped structure. The stability is enhanced by positioning holes, fixing plates and inserts.
It enables the cardboard support to be folded and stored, making it easy to transport and stack, while also improving stability and resistance to deformation during use.
Smart Images

Figure CN223836013U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cardboard support technology, and in particular to a foldable cardboard support for the inside of a carton. Background Technology
[0002] Cardboard boxes are a type of storage device. They are mainly made of corrugated cardboard and other materials. They can protect and stack the stored items, beautify and promote the products, and can be recycled and reused.
[0003] Cardboard boxes are used for storage by placing items directly inside. Cardboard boxes have a cubic structure, and they are prone to deformation when subjected to external pressure. Therefore, when using cardboard boxes, support cardboard is placed inside for auxiliary fixation. However, since the support cardboard does not have a folding function, it takes up a lot of space when placed alone, which is inconvenient for bulk transportation. In order to solve this technical problem, this utility model proposes a foldable support cardboard for the inside of a cardboard box. Utility Model Content
[0004] The main objective of this invention is to provide a foldable support cardboard inside a carton, which can effectively solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A foldable support cardboard box includes a cardboard box body, a cardboard first slidably connected inside the cardboard box body, a cardboard second slidably connected on the outer surface of the cardboard first slidably connected on the outer surface of the cardboard first slidably connected on the outer surface of the cardboard second slidably connected on the inner surface of the cardboard box body, a cardboard third slidably connected on the outer surface of the cardboard third slidably connected on the outer surface of the cardboard third slidably connected on the outer surface of the cardboard third slidably connected on the inner surface of the cardboard first slidably connected on the outer surface of the cardboard third ... first slidably connected on the outer surface of the cardboard first slidably connected on the outer surface of the cardboard first slidably connected on the outer surface of the cardboard first slidably connected on the outer surface of the cardboard first slidably connected on the outer surface of the cardboard body, a cardboard third slidably connected on the outer surface of the cardboard first slidably connected on the outer surface of the cardboard body, a cardboard fourth slidably connected on the outer
[0007] Preferably, one side of the connecting plate one is bonded to one side of the cardboard three with strong adhesive, and the cardboard one and the cardboard two are connected by creases.
[0008] Preferably, the fixing plate is provided with positioning plates at both ends, the outer surface of the positioning plate is slidably connected to the interior of positioning hole one and positioning hole two, and the positioning plate is bonded to one side of cardboard three with strong adhesive.
[0009] Preferably, the second cardboard and the first connecting plate are connected by folds, and the first connecting plate and the second connecting plate are in contact with each other and bonded together with strong adhesive.
[0010] Preferably, the cardboard three and the connecting plate two are connected by creases, and the cardboard three includes three creases and is bent into a rectangular structure.
[0011] Preferably, the cardboard one is provided with a limiting hole one inside, the cardboard three is provided with a limiting hole two inside, and an insert plate is slidably connected inside both the limiting hole one and the limiting hole two, and a fixing frame is fixedly installed on the outside of the insert plate.
[0012] Preferably, the three sets of cardboard are arranged symmetrically, and one side of each set of the three sets of cardboard is bonded to both sides of the first set of cardboard with strong adhesive.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] In this invention, the cooperation between cardboard one, cardboard two, and cardboard three allows cardboard one and cardboard two to be bent into a folded shape, thus connecting cardboard two and cardboard three. When in use, cardboard one, cardboard two, and cardboard three can be opened to contact the inside of the carton. The contact between the inner wall of the carton and cardboard two and cardboard three forms a stable support, facilitating the use of the folding support plate. The space between cardboard two and cardboard three can be used to place some products, realizing the folding and storage of the support cardboard, which is beneficial for the folding and storage of the folding support plate.
[0015] In this utility model, by setting components such as a fixing plate and a fixing frame, the fixing frame can be connected when the cardboard two and cardboard three are opened. When the cardboard two and cardboard three are opened, the positioning plate can be inserted into the interior of the limiting hole one and the limiting hole two. At this time, the fixing frame can provide auxiliary support for the cardboard one and cardboard three to ensure stability during use. The fixing plate can connect the cardboard one and cardboard three through the insert plates on both sides, which can increase the stability when the two are connected. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a foldable support cardboard inside a carton according to the present invention.
[0017] Figure 2 This utility model relates to a foldable support cardboard for the inside of a carton. Figure 1 A magnified view of a portion of the image;
[0018] Figure 3 This is an exploded view of two cardboard sections, one and three, of the foldable cardboard support inside a carton according to this utility model.
[0019] Figure 4 This is a schematic diagram of a cardboard component that provides foldable support for cardboard inside a carton, according to the present invention.
[0020] Figure 5 This is a schematic diagram of a fixing frame component for a foldable support cardboard inside a carton, according to the present invention.
[0021] In the diagram: 1. Carton body; 2. Cardboard 1; 3. Cardboard 2; 4. Connecting plate 1; 5. Cardboard 3; 6. Connecting plate 2; 7. Positioning hole 1; 8. Positioning hole 2; 9. Fixing plate; 10. Positioning plate; 11. Limiting hole 1; 12. Limiting hole 2; 13. Insert plate; 14. Fixing frame. Detailed Implementation
[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0023] like Figure 1 As shown in Figure 5, a foldable support cardboard box includes a cardboard box body 1. A cardboard 1 2 is slidably connected inside the cardboard box body 1. A cardboard 2 3 is provided on the outer surface of the cardboard 1 2. The cardboard 1 2 and the cardboard 2 3 are connected by creases. Under the action of the creases, the cardboard 1 2 and the cardboard 2 3 can be bent and rotated. The cardboard 1 2 is a long board and the cardboard 2 3 is a short board. When bent, the two can form an L-shaped structure.
[0024] One end of cardboard 2 3 is provided with connecting plate 1 4. Cardboard 2 3 and connecting plate 1 4 are connected by creases. The creases can bend connecting plate 1 4 and cardboard 2 3 into an L-shaped structure. Cardboard 3 5 is slidably connected inside the carton body 1. There are two sets of cardboard 3 5 arranged symmetrically. One side of the two sets of cardboard 3 5 is glued to both sides of cardboard 1 2 with strong adhesive. The inside of cardboard 3 5 includes three creases and is bent into a rectangular structure. One side of connecting plate 1 4 is glued to one side of cardboard 3 5 with strong adhesive. When cardboard 3 5 is bent, one side is exposed. At this time, the exposed part can be fixed to one side of connecting plate 1 4 with strong adhesive.
[0025] One end of the cardboard 35 is provided with a connecting plate 26. The cardboard 35 and the connecting plate 26 are connected by creases. The connecting plate 14 and the connecting plate 26 are in contact with each other and are bonded together with strong adhesive. The strong adhesive can fix the connecting plate 14, the connecting plate 26 and the cardboard 35. The connecting plate 14 and the connecting plate 26 are made of rigid cardboard material. When folding the cardboard 23, it can be folded in accordance with the creases inside the cardboard 35, making it convenient to fold and use the whole.
[0026] The cardboard 12 has a positioning hole 7 inside, and the cardboard 35 has a positioning hole 8 inside. The positions of positioning hole 7 and positioning hole 8 correspond to each other. When cardboard 12 and cardboard 35 are fixed, positioning hole 7 and positioning hole 8 can be connected to each other.
[0027] A fixing plate 9 is fixedly installed on the outer surface of cardboard 3 5. Positioning plates 10 are provided at both ends of the fixing plate 9. Both the fixing plate 9 and the positioning plates 10 are made of cardboard material, which is convenient to obtain and process. The outer surface of the positioning plate 10 is slidably connected to the inside of positioning hole 1 7 and positioning hole 2 8. The positioning plate 10 is bonded to one side of cardboard 3 5 with strong adhesive. After fixing cardboard 1 2 and cardboard 3 5, the fixing plate 9 is connected. The fixing plate 9 is placed inside the quadrilateral formed by cardboard 3 5. The positioning plates 10 are inserted into the inside of positioning hole 1 7 and positioning hole 2 8 respectively. The strong adhesive can form a whole with the fixing plate 9, positioning plate 10, cardboard 3 5 and cardboard 1 2, which can help fix the connection position of cardboard 1 2 and cardboard 3 5 and ensure the stability of the connection.
[0028] The cardboard 12 has a limiting hole 11 inside, and the cardboard 35 has a limiting hole 22 inside. The limiting holes 11 and 22 are slidably connected to the insert plate 13. The insert plate 13 is fixedly mounted on the outside of the fixing bracket 14. When using the support bracket, it is first fully opened. At this time, the insert plate 13 is inserted into the limiting holes 11 and 22. The fixing bracket 14 can contact the outer surface of the cardboard 12 and the cardboard 35. The fixing bracket 14 can provide auxiliary support for the cardboard 12 and the cardboard 35, improve the deformation resistance when opened, and ensure the stability during use. When folding the support bracket, the fixing plate 9 is removed. Folding the cardboard 23 and the cardboard 35 in sequence can fold the whole thing for storage, which is convenient for transportation and stacking.
[0029] When the support bracket is opened, the control plate 13 enters the interior of the limiting hole 11 and the limiting hole 22. At this time, the fixing bracket 14 can provide auxiliary support for the cardboard 3 5 and the cardboard 1 2, which can improve the deformation resistance during connection. After the entire bracket is placed inside the carton, it can support the interior of the carton. When folding the support bracket, first disconnect the connection between the control plate 13 and the limiting hole 11 and the limiting hole 22, and remove the fixing bracket 14. The cardboard 2 3 and the cardboard 3 5 can be folded and stored through the creases inside the cardboard 2 3 and the cardboard 3 5 for easy storage. When the cardboard 1 2 and the cardboard 3 5 are connected, the positioning plate 10 can enter the interior of the positioning hole 1 7 and the positioning hole 2 8. The positioning plate 10 can provide auxiliary fixation for the connection position of the cardboard 1 2 and the cardboard 3 5, increasing the stability during connection.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A foldable support cardboard box for the interior of a carton, comprising a carton body (1), characterized in that: The carton body (1) is slidably connected to a cardboard first (2), and a cardboard second (3) is provided on the outer surface of the cardboard first (2). A connecting plate first (4) is provided at one end of the cardboard second (3). The carton body (1) is slidably connected to a cardboard third (5), and a connecting plate second (6) is provided at one end of the cardboard third (5). A positioning hole first (7) is provided inside the cardboard first (2), and a positioning hole second (8) is provided inside the cardboard third (5). A fixing plate (9) is fixedly installed on the outer surface of the cardboard third (5).
2. The foldable support cardboard inside a carton according to claim 1, characterized in that: One side of the connecting plate 1 (4) is bonded to one side of the cardboard 3 (5) with strong adhesive, and the cardboard 1 (2) and cardboard 2 (3) are connected by creases.
3. The foldable support cardboard inside a carton according to claim 1, characterized in that: The fixing plate (9) is provided with positioning plates (10) at both ends. The outer surface of the positioning plate (10) is slidably connected to the interior of positioning hole one (7) and positioning hole two (8). The positioning plate (10) is bonded to one side of cardboard three (5) with strong adhesive.
4. The foldable support cardboard inside a carton according to claim 1, characterized in that: The cardboard 2 (3) and the connecting plate 1 (4) are connected by creases, and the connecting plate 1 (4) and the connecting plate 2 (6) are in contact with each other and are bonded together with strong adhesive.
5. The foldable support cardboard inside a carton according to claim 1, characterized in that: The cardboard three (5) and the connecting plate two (6) are connected by creases. The interior of the cardboard three (5) includes three creases and is bent into a rectangular structure.
6. The foldable support cardboard inside a carton according to claim 1, characterized in that: The cardboard 1 (2) has a limiting hole 1 (11) inside, and the cardboard 3 (5) has a limiting hole 2 (12) inside. Both the limiting hole 1 (11) and the limiting hole 2 (12) are slidably connected to the inside of the limiting hole 1 (11) and the limiting hole 2 (12). The external of the limiting hole 1 (13) is fixedly installed with a fixing bracket (14).
7. The foldable support cardboard inside a carton according to claim 1, characterized in that: The three sets of cardboard (5) are arranged in two symmetrical groups, and one side of the two sets of cardboard (5) is bonded to both sides of cardboard (2) with strong adhesive.