Reinforced environment-friendly corrugated carton
By incorporating a combination of protrusions, limiting plates, and foam boards inside the corrugated cardboard box, the problem of reinforcing fillers being easily carried out inside the box is solved, achieving effective cushioning and reinforcement during transportation.
Patent Information
- Application Number
- CN202520432087.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-12
AI Technical Summary
The reinforcing filler in existing environmentally friendly corrugated cardboard boxes is easily carried out, failing to effectively protect items from damage during transportation.
The structure uses a combination of protrusions, limiting plates, positioning cardboard, and foam board. The protrusions are glued to the corrugated cardboard, and the positioning cardboard and foam board are connected to the corrugated cardboard to form a stable reinforcement to prevent the filler from falling off.
This design ensures that the filler is not easily carried out during repeated use, providing effective cushioning and reinforcement to protect items from damage.
Smart Images

Figure CN223919881U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of corrugated cardboard box technology, specifically relating to a reinforced environmentally friendly corrugated cardboard box. Background Technology
[0002] Corrugated cardboard boxes are a type of packaging container made from environmentally friendly corrugated cardboard through printing, cutting, and stapling processes. There are various types of corrugated cardboard boxes, such as the top and bottom lid box type, which is made by corrugated cardboard forming a box body, with paper lids at both the top and bottom of the box body to seal the box body. Corrugated cardboard boxes are a commonly used type of environmentally friendly cardboard container.
[0003] Generally, when corrugated cardboard boxes are used to hold items, foam boards, bubble wrap, and pearl cotton are usually placed inside the boxes to cushion the impact from the outside and protect the items while also providing some reinforcement to the boxes. However, when the items inside the corrugated cardboard boxes are taken out, the filling materials are also taken out with them, so the boxes can no longer protect the items or reinforce the boxes, which is a drawback.
[0004] Existing environmentally friendly corrugated cardboard boxes have the problem that the reinforcing filler inside the box can easily be carried out during use. To address this, this application proposes a reinforced environmentally friendly corrugated cardboard box. Utility Model Content
[0005] The purpose of this utility model is to provide a reinforced environmentally friendly corrugated cardboard box to solve the problem mentioned in the background art that the reinforced filler placed inside the corrugated cardboard box is easily carried out.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a reinforced environmentally friendly corrugated cardboard box, comprising...
[0007] A corrugated cardboard box includes a first corrugated board and a second corrugated board, a bottom plate connected to the bottom end of the first corrugated board and the second corrugated board, and a cover plate connected to the top end of the first corrugated board and the second corrugated board;
[0008] The reinforcement includes a protrusion, a limiting plate that is plugged into the protrusion, and an inner protective cardboard sleeved on the outside of the limiting plate, wherein a foam strip is inserted into the protrusion.
[0009] The fastener includes a positioning cardboard sleeved on the outside of the protrusion, a first foam board and a second foam board distributed on both sides of the positioning cardboard, and the surface of the second foam board is provided with raised strips.
[0010] Preferably, the protrusion is an isosceles trapezoidal three-dimensional strip structure, with one end of the protrusion being wider and the other end being narrower, and a concave groove is formed on the surface of the narrow end of the protrusion.
[0011] Preferably, the limiting plate is a "T"-shaped plate structure, and one end of the limiting plate is inserted into the corresponding slot.
[0012] Preferably, the second foam board is an isosceles trapezoidal plate structure, and the sides of the second foam board are distributed between the opposing inner protective paperboard and the positioning paperboard.
[0013] Preferably, a corner protector is provided between the side of the second foam board and the waist side of the protrusion. The corner protector is a bent plate-like structure with an obtuse angle, and the corner protector is attached to the positioning cardboard and the protrusion surface.
[0014] Preferably, the inner protective cardboard and the surface of the raised strip on the same side are flush, and the positioning cardboard has a through groove for the raised strip to pass through.
[0015] Preferably, the positioning cardboard has separate foam pads at both ends. The foam pads are rectangular strips with recessed mounting grooves on their surfaces. The ends of the positioning cardboard mate with the corresponding mounting grooves.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] In this utility model, the reinforcing filler placed inside the corrugated cardboard box is not easily carried out. The protrusion is fixedly connected to the corresponding first and second corrugated cardboard. The positioning cardboard is limited by the protrusion, and the first and second foam boards are limited by the positioning cardboard. The first and second foam boards will not detach from the inside of the corrugated cardboard box, which can play a buffering and reinforcing role when the corrugated cardboard box is reused. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 For the present utility model Figure 1 Enlarged structural diagram of section A in the middle;
[0020] Figure 3 This is a three-dimensional structural diagram of the protrusion of this utility model;
[0021] Figure 4 This is a schematic diagram of the main structure of the positioning cardboard of this utility model;
[0022] Figure 5 This is a three-dimensional structural diagram of the second foam board of this utility model;
[0023] Figure 6 This is a three-dimensional structural diagram of the inner protective cardboard of this utility model;
[0024] Figure 7 This is a three-dimensional structural diagram of the foam pad strip of this utility model;
[0025] In the diagram: 2. Protrusion; 3. Foam strip; 4. Limiting plate; 5. Positioning cardboard; 6. First foam board; 7. Second foam board; 8. Corner protector cardboard; 9. Inner protective cardboard; 10. Foam pad strip; 11. First corrugated cardboard; 12. Second corrugated cardboard; 13. Base plate; 14. Cover plate; 21. Slot; 51. Passing groove; 71. Raised strip. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figures 1 to 7This utility model provides a technical solution: a reinforced environmentally friendly corrugated cardboard box, comprising corrugated cardboard box components, including a first corrugated cardboard 11 and a second corrugated cardboard 12, a bottom plate 13 connected to the bottom end of the first corrugated cardboard 11 and the second corrugated cardboard 12, and a cover plate 14 connected to the top end of the first corrugated cardboard 11 and the second corrugated cardboard 12. The first corrugated cardboard 11 and the second corrugated cardboard 12 form the box body, and the bottom plate 13 and the cover plate 14 are paper covers. The box body and the paper covers form an upper and lower lid box type box, which is a conventional cardboard box structure, and will not be described in detail in this application. The reinforcement components include a protrusion 2, a limiting plate 4 inserted and connected to the protrusion 2, and an inner protective cardboard 9 sleeved on the outside of the limiting plate 4. The protrusion 2 is glued to the corresponding first corrugated cardboard 11 and the second corrugated cardboard 12. The length of the protrusion 2 glued to the first corrugated cardboard 11 and the second corrugated cardboard 12 can be designed according to the actual situation. A foam strip 3 is inserted into the protrusion 2. The foam strip 3 serves to reduce external impact and provide reinforcement. The foam strip 3 is limited by the protrusion 2 and will not be carried out of the corrugated cardboard box. The fixing components include a positioning cardboard 5 sleeved on the outside of the protrusion 2, a first foam board 6 and a second foam board 7 distributed on both sides of the positioning cardboard 5. The surface of the second foam board 7 is provided with a raised strip 71. The positioning cardboard 5 is sleeved on the outside of the protrusion 2. The first foam board 6 is installed between the corresponding first corrugated cardboard 11 and the positioning cardboard 5. The first foam board 6 is also installed between the corresponding second corrugated cardboard 12 and the positioning cardboard 5. The first foam board 6 is limited and will not be carried out of the corrugated cardboard box. The two ends of the second foam board 7 are limited by the inner protective cardboard 9. The second foam board 7 and the raised strip 71 remain stable. The first foam board 6, the second foam board 7 and the raised strip 71 serve to reduce external impact and provide reinforcement.
[0028] In this embodiment, the protrusion 2 is an isosceles trapezoidal three-dimensional strip structure, with one end of the protrusion 2 being wide and the other end being narrow. A concave slot 21 is formed on the surface of the narrow end of the protrusion 2. The limiting plate 4 is a "T"-shaped plate structure. One end of the limiting plate 4 is inserted into the corresponding slot 21. The limiting plate 4 and the protrusion 2 are a combined structure, and the limiting plate 4 and the protrusion 2 can be combined or separated.
[0029] In this embodiment, the second foam board 7 is an isosceles trapezoidal plate structure. The sides of the second foam board 7 are distributed between the opposing inner protective paperboard 9 and the positioning paperboard 5. The sides of the second foam board 7 are limited, and the second foam board 7 remains stable.
[0030] In this embodiment, a corner protector 8 is provided between the side of the second foam board 7 and the waist side of the protrusion 2. The corner protector 8 is a bent plate structure with an obtuse angle. The corner protector 8 is attached to the positioning cardboard 5 and the surface of the protrusion 2. The corner protector 8 serves to reinforce the side of the second foam board 7 and the positioning cardboard 5, and prevent the second foam board 7 from becoming loose.
[0031] In this embodiment, the inner protective cardboard 9 and the raised strip 71 are flush on the same side, and the positioning cardboard 5 is provided with a through groove 51 for the protrusion 2 to pass through, so that the protrusion 2 can pass through the positioning cardboard 5.
[0032] In this embodiment, the positioning cardboard 5 is provided with separate foam pads 10 at both ends. The foam pads 10 are rectangular strip structures. The surface of the foam pads 10 is provided with recessed mounting grooves. The ends of the positioning cardboard 5 are matched with the corresponding mounting grooves. The foam pads 10 play the role of fixing the ends of the positioning cardboard 5.
[0033] Working principle and usage process of this utility model:
[0034] When the top and bottom lid type corrugated cardboard box is used, the inner walls of the first corrugated cardboard 11 and the second corrugated cardboard 12 are reinforced by the designed protrusions 2, positioning cardboard 5, first foam board 6 and second foam board 7. The first foam board 6, the second foam board 7 and the protrusions 71 play the role of reducing external impact and reinforcement.
[0035] The protrusion 2 is glued and fixed to the corresponding first corrugated cardboard 11 and second corrugated cardboard 12. The positioning cardboard 5 is limited by the protrusion 2, and the first foam board 6 and second foam board 7 are limited by the positioning cardboard 5. The first foam board 6 and second foam board 7 will not detach from the inside of the corrugated cardboard box, and can play a buffering and reinforcing role when the corrugated cardboard box is reused.
[0036] The foam padding strip 10 serves to reinforce the ends of the cardboard 5. The foam padding strip 10 is located near the corner of the carton between the first corrugated cardboard 11 and the second corrugated cardboard 12, and the foam padding strip 10 also serves to reinforce the corner of the carton.
[0037] In summary: the reinforcing filler placed inside the corrugated cardboard box in this application is not easily carried out. The protrusion 2 is fixedly connected to the corresponding first corrugated cardboard 11 and second corrugated cardboard 12. The positioning cardboard 5 is limited by the protrusion 2, and the first foam board 6 and second foam board 7 are limited by the positioning cardboard 5. The first foam board 6 and second foam board 7 will not detach from the inside of the corrugated cardboard box, and can play a buffering and reinforcing role when the corrugated cardboard box is reused.
[0038] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A reinforced environment-friendly corrugated carton, characterized in that: Comprising A corrugated box piece comprising a first corrugated paperboard (11) and a second corrugated paperboard (12), a bottom plate (13) connected to the bottom ends of the first corrugated paperboard (11) and the second corrugated paperboard (12), and a cover plate (14) connected to the top ends of the first corrugated paperboard (11) and the second corrugated paperboard (12); A reinforcing piece comprising a protrusion (2), a limiting plate (4) connected to the protrusion (2) in a plug-in manner, and an inner protective paperboard (9) sleeved on the outer side of the limiting plate (4), wherein a foam strip (3) is inserted into the protrusion (2); A fixing piece comprising a positioning paperboard (5) sleeved on the outer side of the protrusion (2), a first foam plate (6) and a second foam plate (7) distributed on both sides of the positioning paperboard (5), and a convex strip (71) provided on the surface of the second foam plate (7).
2. The reinforced environment-friendly corrugated paper box according to claim 1, characterized in that: The protrusion (2) is a solid strip structure in the shape of an isosceles trapezoid, one end of the protrusion (2) is wide, the other end is narrow, and a recessed clamping groove (21) is formed on the surface of the narrow end of the protrusion (2).
3. The reinforced environment-friendly corrugated paper box according to claim 2, characterized in that: The limiting plate (4) is a plate structure in the shape of a "T", and one end of the limiting plate (4) is inserted into the corresponding clamping groove (21).
4. The reinforced environment-friendly corrugated paper box according to claim 1, characterized in that: The second foam plate (7) is a plate structure in the shape of an isosceles trapezoid, and the side edges of the second foam plate (7) are distributed between the opposing inner protective paperboard (9) and the positioning paperboard (5).
5. The reinforced environment-friendly corrugated paper box according to claim 1, characterized in that: An angle protection paperboard (8) is arranged between the side edges of the second foam plate (7) and the waist side of the protrusion (2), the angle protection paperboard (8) is a bent plate structure with an obtuse angle, and the angle protection paperboard (8) is attached to the surface of the positioning paperboard (5) and the protrusion (2).
6. The reinforced environment-friendly corrugated paper box according to claim 1, characterized in that: The surfaces of the inner protective paperboard (9) and the convex strip (71) on the same side are flush, and a passing groove (51) is formed on the positioning paperboard (5) for the protrusion (2) to pass through.
7. The reinforced environment-friendly corrugated paper box according to claim 1, characterized in that: The positioning paperboard (5) is provided with a split foam pad strip (10) at both ends, the foam pad strip (10) is a strip structure in the shape of a cuboid, a recessed mounting groove is formed on the surface of the foam pad strip (10), and the end of the positioning paperboard (5) is matched with the corresponding mounting groove.