Corrugated color box with buffering function
By designing a sliding cardboard structure with a built-in handle in the corrugated cardboard box and filling the grooves of the corrugated cardboard with foam strips, the problems of inconvenience in carrying corrugated cardboard boxes and insufficient pressure resistance are solved, achieving convenient carrying and extended service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU SHANGYIN PAPER PRINTING IND CO LTD
- Filing Date
- 2025-04-23
- Publication Date
- 2026-05-19
AI Technical Summary
Existing corrugated boxes are inconvenient to carry and lack effective cushioning and rebound capabilities, which affects their service life.
The design incorporates a sliding cardboard structure with built-in handles and foam strips filling the grooves of the corrugated cardboard. The elasticity of the foam strips helps to reposition the corrugated cardboard, enhancing its compressive strength.
It achieves convenient carrying and extended service life of corrugated color boxes. The built-in handle solves the problem of inconvenient carrying, while the foam strips provide effective cushioning and rebound, enhancing the pressure resistance.
Smart Images

Figure CN224257302U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of corrugated color box technology, and specifically relates to a corrugated color box with a cushioning function. Background Technology
[0002] Corrugated color boxes are packaging boxes made of corrugated paper, mainly used for the outer packaging of goods.
[0003] Currently, Chinese utility model patent CN222474758U discloses a corrugated box that is easy to assemble. Existing corrugated boxes generally do not have automatic handles, requiring users to often place a plastic bag over them before they can easily lift and carry them. This makes them inconvenient to carry and affects their practicality. Furthermore, while the corrugated paper used in these boxes has a certain degree of compression resistance, it cannot effectively cushion and rebound after being deformed under excessive pressure, thus easily leading to damage and reducing the box's lifespan. Utility Model Content
[0004] The purpose of this utility model is to provide a corrugated color box with a cushioning function. Its advantages are that the corrugated color box has a handle for easy carrying and has a certain cushioning and rebound reset capability.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a corrugated color box with a cushioning function, comprising a box body, a box lid fixedly connected to one side of the top of the box body, a top cardboard fixedly connected to the top of the box lid near the side of the box body, a sliding cardboard provided on the top of the top cardboard, the end of the sliding cardboard near the box body being bonded to the top cardboard, a limiting paper strip bonded to the top of the top cardboard away from the box body and slidably connected to the sliding cardboard, a slot for engaging with the limiting paper strip being opened on the end of the sliding cardboard away from the box body, a handle groove being opened on the top of the sliding cardboard, and a through groove for cooperating with the sliding cardboard being opened on the side of the box body away from the box lid.
[0006] Using the above technical solution, after the lid is placed on top of the box, the sliding cardboard is pressed and bent outwards from the inside of the groove. Simultaneously, the sliding cardboard is secured to the limiting paper strip by a slot. This causes the sliding cardboard to protrude and become a handle, giving the corrugated box a built-in handle for easy carrying. Foam strips are filled inside the corrugated grooves of the cardboard to provide pressure cushioning. Furthermore, when the corrugated box deforms under pressure, the elasticity of the foam strips helps the deformed cardboard return to its original position, thereby improving the service life of the corrugated box.
[0007] The present invention is further configured such that: the box body and the box lid are both made of a second kraft paperboard and two first kraft paperboards bonded together; the two first kraft paperboards are respectively bonded to the top and bottom of the second kraft paperboard; corrugated paperboard is bonded between the two first kraft paperboards and the second kraft paperboard; and the corrugated grooves at the top and bottom of the corrugated paperboard are filled with foam strips respectively bonded to the first kraft paperboard and the second kraft paperboard.
[0008] By using the above technical solution, foam strips are filled inside the corrugated grooves of the corrugated cardboard to provide pressure-resistant cushioning for the corrugated color box. At the same time, the elasticity of the foam strips can be used to restore the deformed corrugated cardboard to its original position.
[0009] The present invention is further configured such that: two side cardboard pieces are symmetrically fixedly connected to the side of the box cover near the box body.
[0010] The above technical solution is used in conjunction with the top cardboard to embed the side of the lid into the box body, thereby increasing friction and making the lid stably cover the top of the box body.
[0011] The present invention is further provided with a reinforcing ring that is bonded to the sliding cardboard inside the slot.
[0012] The above technical solution is used to support the internal shape of the card slot and reduce friction caused by sliding with the limiting paper tape.
[0013] The present invention is further configured such that a plastic film is adhered to the side of each of the two first kraft paperboards away from the second kraft paperboard.
[0014] By adopting the above technical solution, the first kraft paperboard is prevented from coming into contact with moisture, thereby improving the water resistance of the box body and lid surface.
[0015] In summary, this utility model has the following beneficial effects:
[0016] 1. By placing the lid on top of the box, pressing down on the sliding cardboard and bending it outwards from the inside of the slot, the sliding cardboard can slide freely and is secured to the limiting paper strip using a slot. This transforms the protruding shape of the sliding cardboard into a handle, giving the corrugated box a built-in handle for easy carrying.
[0017] 2. By filling the corrugated grooves of the corrugated cardboard with foam strips, the corrugated color box is cushioned against pressure. Simultaneously, when the corrugated cardboard deforms under pressure, the elastic force of the foam strips can help the deformed cardboard return to its original position, thereby improving the service life of the corrugated color box. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a partial structural cross-sectional view of the present invention;
[0020] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the image.
[0021] Reference numerals: 1. Box body; 2. Box lid; 3. Top cardboard; 4. Through groove; 5. Sliding cardboard; 6. Limiting paper strip; 7. Card slot; 8. Handle slot; 9. First kraft paperboard; 10. Second kraft paperboard; 11. Corrugated cardboard; 12. Foam strip; 13. Plastic film; 14. Reinforcing ring; 15. Side cardboard. Detailed Implementation
[0022] The present invention will be further described in detail below with reference to the accompanying drawings.
[0023] Example 1:
[0024] refer to Figure 1 , Figure 3 A corrugated cardboard box with a cushioning function includes a box body 1. A lid 2 is fixedly connected to one side of the top of the box body 1. A top cardboard 3 is fixedly connected to the top of the lid 2 near the box body 1. A sliding cardboard 5 is provided on the top of the top cardboard 3. The end of the sliding cardboard 5 near the box body 1 is glued to the top cardboard 3. A limiting paper strip 6, which is slidably connected to the sliding cardboard 5, is glued to the top of the top cardboard 3 away from the box body 1. A slot 7, which engages with the limiting paper strip 6, is provided on the end of the sliding cardboard 5 away from the box body 1. A handle slot 8 is provided on the top of the sliding cardboard 5. A through groove 4, which cooperates with the sliding cardboard 5, is provided on the side of the box body 1 away from the lid 2. By placing the lid 2 on top of the box body 1 and pressing the sliding cardboard 5 to bend it outward from the inside of the through groove 4, the sliding cardboard 5 can slide and is secured to the limiting paper strip 6 by the slot 7. This makes the sliding cardboard 5 protrude into a handle, allowing the corrugated cardboard box to have a built-in handle for easy carrying.
[0025] refer to Figure 1 Two side cardboard pieces 15 are symmetrically fixed to the side of the lid 2 near the box body 1. These are used in conjunction with the top cardboard 3 to allow the sides of the lid 2 to be embedded into the box body 1, thereby increasing friction and making the lid 2 stably cover the top of the box body 1.
[0026] refer to Figure 3 The card slot 7 has a reinforcing ring 14 that is bonded to the sliding cardboard 5 inside. This ring supports the internal shape of the card slot 7 and reduces friction caused by sliding with the limiting paper tape 6.
[0027] Brief description of usage: By placing the lid 2 on top of the box body 1, the top cardboard 3 slides into and embeds itself into the box body 1. At this time, the box body 1 will flatten the sliding cardboard 5 on one side of the top cardboard 3. One end of the sliding cardboard 5 slides inside the limiting paper strip 6 and then extends upward. After the lid 2 is placed on top of the box body 1, the sliding cardboard 5 moves to the position of the through groove 4. By pushing down the extended position of the sliding cardboard 5, the sliding cardboard 5 slides inside the limiting paper strip 6 and then bends back outward from the inside of the through groove 4. The user can hold the protruding part of the sliding cardboard 5 through the handle groove 8. At the same time, the slidable end of the sliding cardboard 5 is secured to one side of the limiting paper strip 6 through the slot 7, so that the closed box body 1 and the lid 2 can be lifted and carried using the sliding cardboard 5. At the same time, when it is necessary to open the lid 2 from the top of the box body 1, simply pull the slidable end of the sliding cardboard 5 upward again to flatten the sliding cardboard 5.
[0028] Example 2:
[0029] refer to Figure 1 , Figure 2 A corrugated cardboard box with cushioning function is disclosed. The box body 1 and lid 2 are both made of a second kraft paperboard 10 and two first kraft paperboards 9 bonded together. The two first kraft paperboards 9 are respectively bonded to the top and bottom of the second kraft paperboard 10. Corrugated paperboard 11 is bonded between the two first kraft paperboards 9 and the second kraft paperboard 10. Foam strips 12, bonded to the first kraft paperboards 9 and the second kraft paperboard 10 respectively, are filled in the corrugated grooves at the top and bottom of the corrugated paperboard 11. By filling the corrugated grooves of the corrugated paperboard 11 with foam strips 12, the corrugated cardboard box is cushioned against pressure. Simultaneously, when the corrugated paperboard 11 deforms under pressure, the elastic force of the foam strips 12 can be used to restore the deformed corrugated paperboard 11 to its original position, thereby improving the service life of the corrugated cardboard box.
[0030] refer to Figure 2 A plastic film 13 is glued to the side of each of the two first kraft paperboards 9 away from the second kraft paperboard 10. This prevents the first kraft paperboards 9 from coming into contact with moisture and improves the water resistance of the box body 1 and the box lid 2.
[0031] Brief description of the usage process: Corrugated cardboard 11 is bonded between the first kraft paperboard 9 and the second kraft paperboard 10 for support, giving the box body 1 and the lid 2 a certain degree of pressure resistance. Simultaneously, foam strips 12 are filled inside the corrugated grooves of the corrugated cardboard 11, allowing the box body 1 and lid 2 to buffer pressure when subjected to compression. Since the foam strips 12 fill the corrugated grooves of the corrugated cardboard 11, when the corrugated cardboard 11 deforms under pressure, it exerts pressure on the foam strips 12, thereby utilizing the rebound force of the foam strips 12 to restore the deformed corrugated cardboard 11 to its original position.
[0032] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A corrugated color box with cushioning function, comprising a box body (1), characterized in that: A lid (2) is fixedly connected to one side of the top of the box body (1). A top cardboard (3) is fixedly connected to the top of the lid (2) near the box body (1). A sliding cardboard (5) is provided on the top of the top cardboard (3). The end of the sliding cardboard (5) near the box body (1) is bonded to the top cardboard (3). A limiting paper strip (6) that slides and connects with the sliding cardboard (5) is bonded to the top of the top cardboard (3) away from the box body (1). A slot (7) that engages with the limiting paper strip (6) is provided on the end of the sliding cardboard (5) away from the box body (1). A handle slot (8) is provided on the top of the sliding cardboard (5). A through slot (4) that works with the sliding cardboard (5) is provided on the side of the box body (1) away from the lid (2).
2. A corrugated color box with a cushioning function according to claim 1, characterized in that: The box body (1) and the box lid (2) are both made of a second kraft paperboard (10) and two first kraft paperboards (9) bonded together. The two first kraft paperboards (9) are bonded to the top and bottom of the second kraft paperboard (10) respectively. Corrugated paperboard (11) is bonded between the two first kraft paperboards (9) and the second kraft paperboard (10). The corrugated grooves at the top and bottom of the corrugated paperboard (11) are filled with foam strips (12) bonded to the first kraft paperboard (9) and the second kraft paperboard (10) respectively.
3. A corrugated color box with a cushioning function according to claim 1, characterized in that: The lid (2) is also symmetrically fixed to two sideboards (15) on the side near the box body (1).
4. A corrugated color box with a cushioning function according to claim 1, characterized in that: The slot (7) is provided with a reinforcing ring (14) that is bonded to the sliding cardboard (5).
5. A corrugated color box with a cushioning function according to claim 2, characterized in that: A plastic film (13) is glued to the side of each of the two first kraft paperboards (9) away from the second kraft paperboard (10).