Packaging carton with buffer protection structure

By introducing a combined structure of bottom support frame, vertical support rod, buffer plate and fixing frame into the packaging box, the problem of difficult disassembly and assembly in the prior art is solved, realizing quick disassembly and assembly and improving the cushioning protection effect.

CN223920093UActive Publication Date: 2026-02-17QINGDAO XINGDA PACKAGE TECH CO LTD
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Patent Information

Application Number
CN202520457668.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2026-02-17
Estimated Expiration
2035-03-14

AI Technical Summary

Technical Problem

Existing packaging boxes with cushioning protection structures are difficult to disassemble and assemble quickly during use, which increases the difficulty of use.

Method used

It adopts a combined structure of base support frame, vertical support rod, buffer plate, fixed frame and protective frame. The buffer plate is fixed and quickly installed through friction and expansion, simplifying the disassembly process.

Benefits of technology

It improves the ease of disassembly and speed of assembly of the packaging boxes, and enhances the protection of the contents.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223920093U_ABST
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Abstract

The utility model discloses a packaging carton with a buffer protection structure, which relates to the field of packaging cartons and comprises a carton body, a bottom bracket is arranged at the bottom inside the carton body, vertical supporting rods are integrally formed on the periphery of the upper end of the bottom bracket, and a bottom plate is slidably mounted on the periphery of the inside of the upper end of the bottom bracket. Four buffer plates are slidably mounted on the periphery of the interior of the end, away from the bottom supporting frame, of the bottom plate, fixing frames are fixedly mounted at the ends, away from the bottom supporting frame, of the four buffer plates, protection frames are fixedly mounted in the opposite faces of the four buffer plates, and a buffer pad is arranged at the end, close to the bottom supporting frame, of the bottom plate. By the adoption of the structure, when the fixing frame is installed, the friction force and expansion effects are also achieved, the fixing frame can be effectively and fixedly installed at the upper end of the vertical supporting rod and the upper end of the buffer plate, the situation that the whole fixing frame displaces and falls off is prevented, and the disassembly simplicity and assembly rapidness of a user are effectively improved.
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Description

Technical Field

[0001] This utility model belongs to the field of packaging paper boxes, and specifically relates to a packaging paper box with a cushioning protection structure. Background Technology

[0002] A cardboard box is a type of packaging material mainly composed of corrugated paper. By folding the corrugated paper material through specific creases, it can be folded into a hollow cubic structure that can hold items inside.

[0003] Existing technologies have specifically developed some packaging boxes with cushioning and protective structures. For example, Chinese patent publication number "CN221438818U" discloses "a packaging box with a cushioning structure." Through the cooperation of a fixing rod, a slider, and a protective plate, the fixing rod first fixes the four sides of the box body. At this time, the slider is placed into the first slide groove. Both the slider and the protective plate are made of cardboard, which is relatively energy-saving and environmentally friendly. After the slider and the protective plate are installed, the protective plate forms a cushioning hollow area between the box body and the protective plate. When the product inside the box is subjected to impact, it can cushion and protect the product inside, achieving a cushioning effect for the product inside the packaging box and avoiding the problem of easy damage to the product inside without a cushioning structure.

[0004] Although the combination of the fixing rod, slider, and protective plate allows the fixing rod to secure the four sides of the box, and then the slider is placed inside the first slide groove, the slider and protective plate are both made of cardboard, which is relatively energy-saving and environmentally friendly, achieving a cushioning effect for the products inside the packaging box and avoiding the problem of easy damage to the products without a cushioning structure, it cannot effectively achieve quick disassembly. This increases the difficulty of use for the operator and cannot effectively achieve quick disassembly and assembly to protect the carton body. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a packaging cardboard box with a cushioning and protective structure to solve the problems of packaging cardboard boxes.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A packaging cardboard box with a cushioning protection structure includes a cardboard box body. The bottom of the cardboard box body is provided with a bottom support frame. Vertical support rods are integrally formed on all four sides of the upper end of the bottom support frame. A bottom plate is slidably installed on all four sides of the upper end of the bottom support frame. Four cushioning plates are slidably installed on all four sides of the bottom plate at the end away from the bottom support frame. A fixing frame is fixedly installed on the end of the four cushioning plates away from the bottom support frame. A protective frame is fixedly installed on the interior of the opposite sides of the four cushioning plates. A cushioning pad is provided on the end of the bottom plate near the bottom support frame.

[0008] As a preferred technical solution, the upper end of the base support frame is provided with mounting grooves on all four sides, and the bottom plate is integrally formed with mounting plates on all four sides of the end of the base plate close to the base support frame. The mounting plates are slidably installed inside the base support frame through the mounting grooves.

[0009] As a preferred technical solution, the bottom plate has insertion slots on all four sides of the end away from the bottom support frame, and the four buffer plates have an integrally formed insertion plate at the end near the bottom plate. The insertion plate is inserted into the bottom plate at the end away from the bottom support frame through the insertion slot.

[0010] As a preferred technical solution, semi-circular grooves are provided on both sides of the four vertical support rods, and semi-circular protrusions are integrally formed on both sides of the four buffer plates. The semi-circular protrusions integrally formed on both sides of the four buffer plates are slidably installed inside the four vertical support rods through the semi-circular grooves.

[0011] As a preferred technical solution, each of the four buffer plates has a fastening groove inside at the end away from the base plate, and the fixing frame has a fastening plug plate integrally formed around the four sides of the end of the four buffer plates.

[0012] As a preferred technical solution, the fixed frame has a semi-circular plug block integrally formed at one end of the buffer plate and both ends of the fastening plug plate. The fastening plug plate is slidably installed on the upper end of the buffer plate through the fastening groove. The semi-circular plug block is slidably installed inside the semi-circular grooves opened on both sides of the four vertical support rods.

[0013] As a preferred technical solution, square grooves are provided on the inner sides of the opposite surfaces of the four buffer pads, and the four protective frames are fixedly installed inside the four buffer plates through the square grooves provided inside the buffer plates. The ends of the four buffer plates away from the protective frames and the ends of the buffer pads away from the bottom plate are attached to the inner wall of the carton body, and two cover plates are provided on the upper end of the carton body.

[0014] In summary, the present invention has the following main advantages:

[0015] First, the staff slides the four buffer plates between the four vertical support rods. During the sliding installation, the staff needs to align the semi-circular protrusions formed on both ends of the four buffer plates with the semi-circular grooves opened inside the sides of the four vertical support rods. This can effectively fix the buffer plates between the vertical support rods, which can play a good role in protection and cushioning, and provide better protection for the carton body.

[0016] Secondly, after the staff slides the buffer plate between the vertical support rods, the integrally formed plug plate at one end of the buffer plate will be inserted into the plug grooves opened around the bottom plate of the plug groove to fix the buffer plate. After the plug plate is inserted into the plug groove, the expansion due to friction will make the buffer plate better fixed inside the bottom plate, effectively preventing the buffer plate from falling off.

[0017] Third, insert the fixing bracket into the upper part of the vertical support rod and the buffer plate. When installing the fixing bracket, the friction and expansion will effectively fix the fixing bracket to the upper part of the vertical support rod and the buffer plate, preventing the whole structure from shifting or falling off. This will effectively improve the ease of disassembly and assembly speed for users. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a structural schematic diagram of the buffer plate and protective frame of this utility model;

[0020] Figure 3 This is a schematic diagram of the buffer plate structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the base plate, vertical support rod, buffer plate, fixing frame and base support plate of this utility model;

[0022] Figure 5 This is a utility model Figure 4 A magnified structural diagram of part A;

[0023] Figure 6 This is a utility model Figure 4 A schematic diagram of the enlarged structure of part B;

[0024] Figure 7 This is a utility model Figure 4 A magnified structural diagram of section C;

[0025] Figure 8 This is a utility model Figure 4 A magnified structural diagram of part D.

[0026] Reference numerals: 1. Cover plate; 2. Carton body; 3. Square groove; 4. Protective frame; 5. Vertical support rod; 6. Buffer plate; 7. Bottom support frame; 8. Fixing frame; 9. Bottom plate; 10. Fastening groove; 11. Semi-circular protrusion; 12. Insert plate; 13. Buffer pad; 14. Mounting plate; 15. Insert groove; 16. Semi-circular groove; 17. Fastening plug plate; 18. Semi-circular plug; 19. Mounting groove. Detailed Implementation

[0027] Example

[0028] refer to Figures 1 to 2 This embodiment of a packaging cardboard box with a cushioning protection structure includes a cardboard box body 2. The bottom of the cardboard box body 2 is provided with a bottom support frame 7. Vertical support rods 5 are integrally formed on all four sides of the upper end of the bottom support frame 7. A bottom plate 9 is slidably installed on all four sides of the upper end of the bottom support frame 7. Four cushioning plates 6 are slidably installed on all four sides of the bottom plate 9 away from the bottom support frame 7. A fixing frame 8 is fixedly installed on the end of the four cushioning plates 6 away from the bottom support frame 7. A protective frame 4 is fixedly installed on the opposite side of the four cushioning plates 6. A cushioning pad 13 is provided on the end of the bottom plate 9 close to the bottom support frame 7.

[0029] refer to Figure 4 , Figures 7 to 8 The bottom support frame 7 has mounting grooves 19 on all four sides of its upper end. The bottom plate 9 has an integrally formed mounting plate 14 on all four sides of its end near the bottom support frame 7. The mounting plate 14 is slidably installed on the bottom support frame 7 through the mounting grooves 19. After the bottom plate 9 is installed on the upper end of the bottom support frame 7, it can protect the bottom of the carton body 2. The bottom of the bottom plate 9 is also provided with a cushioning pad 13. The cushioning pad 13 provides better cushioning for the bottom of the carton body 2, so that the carton body 2 can be better protected.

[0030] refer to Figure 3 , Figures 4 to 8 The bottom plate 9 has insertion slots 15 on all four sides of the end away from the bottom support frame 7. The four buffer plates 6 have an integrally formed insertion plate 12 on the end of the bottom plate 9 close to the bottom plate 9. The insertion plate 12 is inserted into the bottom plate 9 away from the bottom support frame 7 through the insertion slots 15. After the buffer plate 6 is slidably installed between the vertical support rods 5, the integrally formed insertion plate 12 on one end of the buffer plate 6 will be inserted into the insertion slots 15 on all four sides of the bottom plate 9 to fix the buffer plate 6. After the insertion plate 12 is inserted into the insertion slot 15, the expansion due to friction will make the buffer plate 6 better fixed inside the bottom plate 9, effectively preventing the buffer plate 6 from falling off.

[0031] refer to Figure 3 , Figures 4 to 6 The four vertical support rods 5 are provided with semi-circular grooves 16 on both sides, and the four buffer plates 6 are integrally formed with semi-circular protrusions 11 on both sides. The semi-circular protrusions 11 integrally formed on both sides of the four buffer plates 6 are slidably installed inside the four vertical support rods 5 through the semi-circular grooves 16, which can effectively improve the ease of assembly of the buffer plates 6 by the workers. Due to the semi-circular design, the smoothness of installation and the tightness of installation can be improved, thus improving the fixing effect.

[0032] refer to Figure 4 , Figures 5 to 6Each of the four buffer plates 6 has a fastening groove 10 at the end furthest from the base plate 9. Each of the four buffer plates 6 has a fastening plug 17 integrally formed around one end of the fixing frame 8. Each of the two ends of the fixing frame 8 near the buffer plate 6, located at the fastening plug 17, has a semi-circular plug 18 integrally formed. The fastening plugs 17 are slidably mounted on the upper end of the buffer plate 6 through the fastening grooves 10. The semi-circular plugs 18 are slidably mounted inside the semi-circular grooves 16 on both sides of the four vertical support rods 5. Each of the four buffer pads 13 has a square groove 3 on the inner side of its opposite surface. Each of the four protective frames 4 is connected to the buffer plate... The square groove 3 inside the carton is fixedly installed inside the four buffer plates 6. The ends of the four buffer plates 6 away from the protective frame 4 and the ends of the buffer pads 13 away from the bottom plate 9 are all attached to the inner wall of the carton body 2. The upper end of the carton body 2 is provided with two cover plates 1. The fixing frame 8 is inserted into the upper end of the vertical support rod 5 and the buffer plate 6. When installing the fixing frame 8, the friction and expansion can effectively fix the fixing frame 8 to the upper end of the vertical support rod 5 and the buffer plate 6, preventing the whole body from shifting or falling off, and effectively improving the ease of disassembly and assembly speed for users.

[0033] Operating principle and advantages: In use, the operator first places the base support frame 7 in a suitable position, then assembles the base plate 9 to the top of the base support frame. During assembly, the end of the base plate 9 with the buffer pad 13 should face the bottom of the base support frame. During installation, the operator also needs to align the integrally formed mounting plate 14 at the end of the base plate 9 near the buffer pad 13 with the mounting groove 19 opened around the inside of the base support frame 7. Then, the operator slides the base plate 9 into the top of the base support frame. Next, the operator slides the four buffer plates 6 between the integrally formed vertical support rods 5 at the top of the base support frame. When installing the buffer plates 6, the operator needs to adjust the end of the buffer plate 6 with the protective frame 4 into the four vertical support rods 5. Then, the operator slides the four buffer plates 6 between the four vertical support rods 5. During sliding installation, the operator needs to align the integrally formed semi-circular protrusions 11 at both ends of the four buffer plates 6 with the openings on both sides of the four vertical support rods 5. The semi-circular groove 16 is designed to effectively fix the buffer plate 6 between the vertical support rods 5, providing good protection and cushioning, and offering better protection for the carton body 2. After the staff slides the buffer plate 6 between the vertical support rods 5, the integrally formed insertion plate 12 at one end of the buffer plate 6 will be inserted into the insertion groove 15 inside the bottom plate 9, which is opened around the perimeter, to fix the buffer plate 6. After the insertion plate 12 is inserted into the insertion groove 15, the expansion due to friction will better fix the buffer plate 6 inside the bottom plate 9, effectively preventing the buffer plate 6 from falling off. Finally, the staff inserts the fixing bracket 8 into the upper end of the vertical support rods 5 and the buffer plate 6. When installing the fixing bracket 8, the friction and expansion will also effectively fix the fixing bracket 8 into the upper end of the vertical support rods 5 and the buffer plate 6, preventing overall displacement and falling off, effectively improving the ease of disassembly and assembly speed for users.

Claims

1. A packaging carton with cushioning protection, comprising a carton body (2), characterized in that: The bottom of the carton body (2) is provided with a bottom support frame (7), the upper end of the bottom support frame (7) is integrally provided with a vertical support rod (5) around, the upper end of the bottom support frame (7) is slidably provided with a bottom plate (9) around, the end of the bottom plate (9) away from the bottom support frame (7) is slidably provided with four buffer plates (6) around, the end of the four buffer plates (6) away from the bottom support frame (7) is fixedly provided with a fixed frame (8), the opposite side of the four buffer plates (6) is fixedly provided with a protection frame (4), and the end of the bottom plate (9) close to the bottom support frame (7) is provided with a buffer pad (13).

2. A carton of the type defined in claim 1, wherein: The upper end of the bottom support frame (7) is provided with an installation groove (19) around, the end of the bottom plate (9) close to the bottom support frame (7) is integrally provided with an installation plate (14) around, and the installation plate (14) is slidably installed in the bottom support frame (7) through the installation groove (19).

3. The carton of claim 1, wherein: The end of the bottom plate (9) away from the bottom support frame (7) is provided with an insertion groove (15) around, the end of the four buffer plates (6) close to the bottom plate (9) is integrally provided with an insertion plate (12), and the insertion plate (12) is inserted in the end of the bottom plate (9) away from the bottom support frame (7) through the insertion groove (15).

4. The carton of claim 1, wherein: The two sides of the four vertical support rods (5) are provided with semicircular grooves (16), the two sides of the four buffer plates (6) are integrally provided with semicircular protrusions (11), and the semicircular protrusions (11) integrally formed on the two sides of the four buffer plates (6) are slidably installed in the four vertical support rods (5) through the semicircular grooves (16).

5. The carton of claim 1, wherein: The end of the four buffer plates (6) away from the bottom plate (9) is provided with a fastening groove (10) around, and the end of the fixed frame (8) close to the four buffer plates (6) is integrally provided with a fastening plug plate (17) around.

6. A carton with cushioning according to claim 5, wherein: The end of the fixed frame (8) close to the buffer plate (6) is integrally provided with a semicircular plug block (18) at both ends of the fastening plug plate (17), the fastening plug plate (17) is slidably installed on the upper end of the buffer plate (6) through the fastening groove (10), and the semicircular plug block (18) is slidably installed in the semicircular groove (16) formed in the two sides of the four vertical support rods (5).

7. The carton of claim 1, wherein: The opposite sides of the four buffer pads (13) are provided with square grooves (3), the four protection frames (4) are fixedly installed in the four buffer plates (6) through the square grooves (3) formed in the buffer plates (6), and the end of the four buffer plates (6) away from the protection frame (4) and the end of the buffer pad (13) away from the bottom plate (9) are attached to the inner wall of the carton body (2), and the upper end of the carton body (2) is provided with two cover plates (1).

Citation Information

Patent Citations

  • Packaging carton with buffer structure

    CN221438818U