Heavy duty cushioned carton

By incorporating cushioning support plates and cushioning crushers inside the packaging carton, combined with metal filler plates and pin structures, the problems of insufficient load-bearing capacity and sealing of heavy-duty packaging cartons are solved, achieving higher cushioning protection and stability.

CN224477320UActive Publication Date: 2026-07-10CHANGSHU JIAHE PAPER PROD TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGSHU JIAHE PAPER PROD TECH CO LTD
Filing Date
2025-07-08
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing heavy-duty packaging cartons have simple structures, insufficient load-bearing capacity, are easily damaged by compression, and have poor sealing and stability.

Method used

A cushioning support plate and a cushioning squeezer are installed inside the packaging carton. The compression cushioning springs achieve a synchronous cushioning effect, and the protection and sealing are enhanced by metal filler plates and pin structures.

Benefits of technology

It improves the cushioning and protection effect and handling strength of the packaging cartons, while also enhancing the multi-directional protection and storage stability of the packaging cartons.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a heavy-duty cushioning packaging carton, relating to the field of packaging carton technology. It includes a main body of the packaging carton, with a cushioning support plate movably connected to one side of the main body. A cushioning squeezer is fixedly connected to one side surface of the cushioning support plate. By setting cushioning support plates on both inner walls of the main body of the packaging carton, and setting multiple cushioning squeezers at various positions between the cushioning support plates and the main body of the packaging carton, when external compression occurs on the main body of the packaging carton, the cushioning squeeze contact blocks are compressed. The cushioning squeeze plate performs a compression operation, directly compressing and stretching; the sliding squeeze disc achieves an up-and-down pushing effect, sliding on a limiting slide rail; and the compression buffer spring achieves side-top compression. The sliding friction between the sliding squeeze disc and the limiting slide rail counteracts the elastic potential energy of the compression buffer spring, thereby achieving a synchronous up-and-down cushioning effect.
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Description

Technical Field

[0001] This utility model relates to the field of packaging carton technology, and in particular to a heavy-duty cushioning packaging carton. Background Technology

[0002] Cardboard boxes are widely used in daily life. They are needed for the storage and transportation of various items. With the widespread use of cardboard boxes, the requirements for their manufacturing are becoming increasingly stringent, especially for heavy-duty cardboard boxes. Since heavy-duty cardboard boxes need to carry large and heavy items and keep them sealed, their load-bearing capacity is particularly important. Most existing heavy-duty cardboard boxes have relatively simple structures, often combining them with wooden boards to pack items. Although there are many types of cardboard boxes on the market today, most are just variations in form, with little change in function. Nowadays, cardboard boxes are usually made of paper, making them susceptible to damage from compression, which can affect the internal components. Utility Model Content

[0003] The purpose of this invention is to provide heavy-duty cushioning packaging cartons.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a heavy-duty cushioning packaging carton, including a packaging carton body, a cushioning support plate movably connected to one side of the packaging carton body, a cushioning squeezer fixedly connected to one side surface of the cushioning support plate, a limiting sliding rail fixedly connected to one side inner wall of the cushioning squeezer, a sliding squeezing disc movably connected to one side surface of the limiting sliding rail, a squeezing cushioning spring fixedly connected between the sliding squeezing disc and the cushioning squeezer, a connecting block fixedly connected to one side surface of the sliding squeezing disc, a cushioning squeezing plate fixedly connected to one side surface of the connecting block, and a cushioning squeezing contact block fixedly connected to the center of one side surface of the cushioning squeezing plate.

[0005] Preferably, the buffer compression contact block is in compression contact with the inner wall of the packaging carton body, and there are several buffer compression devices arranged in a matrix on one side surface of the buffer support plate. The sliding compression plate is located inside the buffer compression device, and the connection between the sliding compression plate and the buffer compression device is a sliding connection.

[0006] Preferably, a side protective reinforcing plate is fixedly connected to one side of the outer wall of the main body of the packaging carton. A pin hole is opened on the top surface of one side of the side protective reinforcing plate. A metal filling plate is detachably installed inside the side protective reinforcing plate. A sealing top plate is fixedly connected to one side of the top surface of the metal filling plate. An auxiliary handle is fixedly welded to one side of the top surface of the sealing top plate. A pin rod is fixedly connected to one side of the bottom end of the sealing top plate.

[0007] Preferably, the side protective reinforcement plate and the metal filler plate are connected by a snap-fit ​​mechanism, the cross-sectional area of ​​the sealing top plate is the same as that of the side protective reinforcement plate, the positions of the pin rod and the pin hole correspond one-to-one, and the connection between the pin rod and the pin hole is a pin connection.

[0008] Preferably, a first connecting shaft is rotatably connected to the top edge of one side of the main body of the packaging carton, a first sealing top cover is fixedly connected to one side of the first connecting shaft, a fixed connecting box is fixedly connected to one side of the top edge of the first sealing top cover, a sliding limiting groove is provided on the top surface of the fixed connecting box, a sliding top plate is slidably connected to one side of the top edge of the fixed connecting box, a pin block is fixedly connected to one side of the bottom end of the sliding top plate, a second connecting shaft is rotatably connected to the top edge of the main body of the packaging carton away from the first connecting shaft, a second sealing top cover is fixedly connected to one side of the second connecting shaft, a pin fixing plate is fixedly connected to one side of the top edge of the second sealing top cover, and a pin groove is provided inside the pin fixing plate.

[0009] Preferably, the pin block is located inside the fixed connection box, the cross-sectional width of the sliding top plate is greater than the cross-sectional width of the sliding limiting groove, the connection relationship between the pin block and the fixed connection box is a sliding connection, the positions of the pin fixing plate and the fixed connection box correspond one-to-one, and the connection relationship between the pin groove and the pin block is a pin connection.

[0010] Compared with related technologies, the heavy-duty cushioning packaging carton provided by this utility model has the following beneficial effects:

[0011] 1. This utility model provides a heavy-duty cushioning packaging carton. By setting cushioning support plates on both sides of the inner wall of the packaging carton body, and setting multiple cushioning squeezers between the cushioning support plates and the packaging carton body, once the packaging carton body is squeezed externally, the cushioning squeeze contact blocks are squeezed. The cushioning squeeze plate performs the squeezing operation, and the cushioning squeeze plate directly squeezes and stretches. The sliding squeeze plate achieves the up and down pushing effect. The sliding squeeze plate slides on the position of the limiting slide rail. The squeeze buffer spring performs side and top squeezing. The sliding friction between the sliding squeeze plate and the limiting slide rail offsets the elastic potential energy of the squeeze buffer spring, thereby achieving a synchronous up and down cushioning effect, improving the cushioning protection effect of the cushioning support plate for the packaging carton body, and improving the handling strength of the packaging carton body.

[0012] 2. This utility model provides a heavy-duty cushioning packaging carton. By setting the outer walls of the main body of the packaging carton away from the cushioning support plate on both sides, a metal filler plate is inserted into the interior of the side protective reinforcement plate, and a pin is inserted into the pin hole simultaneously to achieve installation. The metal filler plate enhances the protection of the outer wall of the main body of the packaging carton, ensuring a multi-directional protection enhancement effect. The alignment between the second sealing top cover and the first sealing top cover is achieved by sliding the top plate to adjust the position of the pin block. The pin block is directly inserted into the pin slot, and the locking between the pin fixing plate and the pin block ensures the airtightness of the packaging carton body during use and storage, and at the same time improves the stability of the packaging carton body during storage and handling. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the buffer squeezer structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the connection structure between the side protection reinforcing plate and the metal filling plate of this utility model;

[0016] Figure 4 This is a side view structural diagram of the first and second sealing top covers of this utility model.

[0017] The following are the labeling elements in the diagram: 1. Main body of the packaging carton; 2. Buffer support plate; 3. Buffer squeezer; 4. Limiting sliding rail; 5. Sliding squeeze plate; 6. Squeeze buffer spring; 7. Connecting block; 8. Buffer squeeze plate; 9. Buffer squeeze contact block; 10. Side protection reinforcement plate; 11. Pin hole; 12. Metal filler plate; 13. Sealing top plate; 14. Auxiliary handle; 15. Pin rod; 16. First connecting shaft; 17. First sealing top cover; 18. Fixed connecting box; 19. Sliding limit groove; 20. Sliding top plate; 21. Pin block; 22. Second connecting shaft; 23. Second sealing top cover; 24. Pin fixing plate; 25. Pin groove. Detailed Implementation

[0018] Example 1:

[0019] Please see Figure 1-4 This utility model provides a technical solution: a heavy-duty cushioning packaging carton, including a packaging carton body 1, a cushioning support plate 2 movably connected to one side of the packaging carton body 1, a cushioning squeezer 3 fixedly connected to one side surface of the cushioning support plate 2, a limiting sliding rail 4 fixedly connected to one side inner wall of the cushioning squeezer 3, a sliding squeeze disc 5 movably connected to one side surface of the limiting sliding rail 4, a squeeze cushioning spring 6 fixedly connected between the sliding squeeze disc 5 and the cushioning squeezer 3, a connecting block 7 fixedly connected to one side surface of the sliding squeeze disc 5, a cushioning squeeze plate 8 fixedly connected to one side surface of the connecting block 7, a cushioning squeeze contact block 9 fixedly connected to the center of one side surface of the cushioning squeeze plate 8, the cushioning squeeze contact block 9 and the inner wall of the packaging carton body 1 being squeezed and contacted, the number of cushioning squeezers 3 is several, the several cushioning squeezers 3 are arranged in a matrix on one side surface of the cushioning support plate 2, the sliding squeeze disc 5 is located inside the cushioning squeezer 3, and the connection relationship between the sliding squeeze disc 5 and the cushioning squeezer 3 is a sliding connection.

[0020] In the implementation plan, buffer support plates 2 are set on the inner walls of both sides of the packaging carton body 1, and multiple buffer squeezers 3 are set between the buffer support plates 2 and the packaging carton body 1. Once the packaging carton body 1 is squeezed from the outside, the buffer squeeze contact block 9 is squeezed, and the buffer squeeze plate 8 performs the squeezing operation. The buffer squeeze plate 8 will directly squeeze and stretch, and the sliding squeeze disc 5 will achieve the up and down pushing effect. The sliding squeeze disc 5 slides on the position of the limiting slide rail 4, and the squeeze buffer spring 6 will achieve the side and top squeezing. The sliding friction force between the sliding squeeze disc 5 and the limiting slide rail 4 will offset the elastic potential energy of the squeeze buffer spring 6, thereby achieving the effect of synchronous up and down buffering, improving the buffer protection effect of the buffer support plate 2 on the packaging carton body 1, and improving the handling strength of the packaging carton body 1.

[0021] Example 2:

[0022] Please see Figure 1-4 This utility model provides a technical solution: a heavy-duty cushioning packaging carton, including a side protective reinforcing plate 10 fixedly connected to one side outer wall of the packaging carton body 1, a pin hole 11 opened on the top surface of one side of the side protective reinforcing plate 10, a metal filling plate 12 detachably installed inside the side protective reinforcing plate 10, a sealing top plate 13 fixedly connected to the top surface of one side of the metal filling plate 12, an auxiliary handle 14 fixedly welded to the top surface of one side of the sealing top plate 13, a pin rod 15 fixedly connected to the bottom end of one side of the sealing top plate 13, the connection relationship between the side protective reinforcing plate 10 and the metal filling plate 12 is a movable snap-fit, the cross-sectional area of ​​the sealing top plate 13 is the same as the cross-sectional area of ​​the side protective reinforcing plate 10, the positions of the pin rod 15 and the pin hole 11 correspond one-to-one, the connection relationship between the pin rod 15 and the pin hole 11 is a pin connection, a first connecting shaft 16 is rotatably connected to the edge of the top surface of one side of the packaging carton body 1, and a first connecting shaft 16 is fixedly connected to one side of the first connecting shaft 16. A sealing top cover 17 is provided. A fixed connecting box 18 is fixedly connected to one side of the top surface of the first sealing top cover 17. A sliding limiting groove 19 is provided on the top surface of the fixed connecting box 18. A sliding top plate 20 is slidably connected to one side of the top surface of the fixed connecting box 18. A pin block 21 is fixedly connected to one side of the bottom end of the sliding top plate 20. A second connecting shaft 22 is rotatably connected to the top edge of the packaging carton body 1 away from the first connecting shaft 16. A second sealing top cover 23 is fixedly connected to one side of the second connecting shaft 22. A pin fixing plate 24 is fixedly connected to one side of the top surface of the second sealing top cover 23. A pin groove 25 is provided inside the pin fixing plate 24. The pin block 21 is located inside the fixed connecting box 18. The cross-sectional width of the sliding top plate 20 is greater than the cross-sectional width of the sliding limiting groove 19. The connection relationship between the pin block 21 and the fixed connecting box 18 is a sliding connection. The positions of the pin fixing plate 24 and the fixed connecting box 18 correspond one-to-one. The connection relationship between the pin groove 25 and the pin block 21 is a pin connection.

[0023] In the implementation plan, by setting the outer walls of the packaging carton body 1 away from the buffer support plate 2 on both sides, the metal filling plate 12 is inserted into the interior of the side protective reinforcement plate 10, and the pin rod 15 is inserted into the interior of the pin hole 11 to achieve installation. The metal filling plate 12 enhances the protection on the outer wall of the packaging carton body 1, ensuring the multi-directional protection enhancement effect of the packaging carton body 1. The alignment between the second sealing top cover 23 and the first sealing top cover 17 is achieved by sliding the top plate 20 to adjust the position of the pin block 21. The pin block 21 is directly inserted into the interior of the pin groove 25. The locking between the pin fixing plate 24 and the pin block 21 ensures the airtightness of the packaging carton body 1 for internal use and storage, and at the same time improves the stability of the packaging carton body 1 during storage and handling.

[0024] Working principle:

[0025] By setting buffer support plates 2 on the inner walls of both sides of the packaging carton body 1, and setting multiple buffer squeezers 3 between the buffer support plates 2 and the packaging carton body 1, once the packaging carton body 1 is squeezed from the outside, the buffer squeeze contact block 9 is squeezed, the buffer squeeze plate 8 performs the squeezing operation, the buffer squeeze plate 8 will directly squeeze and stretch, the sliding squeeze disc 5 achieves the up and down pushing effect, the sliding squeeze disc 5 slides on the position of the limit sliding rail 4, and the squeeze buffer spring 6 achieves the side top squeeze. The sliding friction force between the sliding squeeze disc 5 and the limit sliding rail 4 offsets the elastic potential energy of the squeeze buffer spring 6, thereby achieving the effect of synchronous up and down buffering, improving the buffer protection effect of the buffer support plate 2 on the packaging carton body 1, and improving the handling strength of the packaging carton body 1;

[0026] By setting the outer walls of the packaging carton body 1 away from the buffer support plate 2 on both sides, the metal filling plate 12 is inserted into the interior of the side protective reinforcement plate 10, and the pin rod 15 is inserted into the interior of the pin hole 11 to achieve installation. The metal filling plate 12 enhances the protection on the outer wall of the packaging carton body 1, ensuring the multi-directional protection enhancement effect of the packaging carton body 1. The alignment between the second sealing top cover 23 and the first sealing top cover 17 is achieved by sliding the top plate 20 to adjust the position of the pin block 21. The pin block 21 is directly inserted into the interior of the pin groove 25. The locking between the pin fixing plate 24 and the pin block 21 ensures the airtightness of the packaging carton body 1 during use and storage, and at the same time improves the stability of the packaging carton body 1 during storage and handling.

Claims

1. A heavy-duty cushioning packaging carton, comprising a carton body (1), wherein a cushioning support plate (2) is movably connected to one side of the carton body (1), characterized in that: A buffer squeezer (3) is fixedly connected to one side surface of the buffer support plate (2). A limit sliding rail (4) is fixedly connected to one side inner wall of the buffer squeezer (3). A sliding squeeze disc (5) is movably connected to one side surface of the limit sliding rail (4). A squeeze buffer spring (6) is fixedly connected between the sliding squeeze disc (5) and the buffer squeezer (3). A connecting block (7) is fixedly connected to one side surface of the sliding squeeze disc (5). A buffer squeeze plate (8) is fixedly connected to one side surface of the connecting block (7). A buffer squeeze contact block (9) is fixedly connected to the center of one side surface of the buffer squeeze plate (8).

2. The heavy-duty cushioning packaging carton according to claim 1, characterized in that, The buffer extrusion contact block (9) and the inner wall of the packaging carton body (1) are in extrusion contact connection. There are several buffer extruders (3). Several buffer extruders (3) are arranged in a matrix on one side surface of the buffer support plate (2). The sliding extrusion disc (5) is located inside the buffer extruder (3). The connection relationship between the sliding extrusion disc (5) and the buffer extruder (3) is a sliding connection.

3. A heavy-duty cushioning packaging carton according to claim 1, characterized in that, A side protective reinforcement plate (10) is fixedly connected to one side of the outer wall of the main body (1) of the packaging carton. A pin hole (11) is opened on the top surface of one side of the side protective reinforcement plate (10). A metal filling plate (12) is detachably installed inside the side protective reinforcement plate (10). A sealing top plate (13) is fixedly connected to the top surface of one side of the metal filling plate (12). An auxiliary handle (14) is fixedly welded to the top surface of one side of the sealing top plate (13). A pin rod (15) is fixedly connected to the bottom end of one side of the sealing top plate (13).

4. A heavy-duty cushioning packaging carton according to claim 3, characterized in that, The side protection reinforcing plate (10) and the metal filling plate (12) are connected by a snap-fit. The cross-sectional area of ​​the sealing top plate (13) is the same as that of the side protection reinforcing plate (10). The positions of the pin rod (15) and the pin hole (11) correspond one-to-one. The connection between the pin rod (15) and the pin hole (11) is a pin connection.

5. A heavy-duty cushioning packaging carton according to claim 1, characterized in that, The packaging carton body (1) is rotatably connected to the edge of one side top surface of the packaging carton body (1). The first connecting shaft (16) is fixedly connected to one side surface of the first connecting shaft (16). The first sealing top cover (17) is fixedly connected to one side top surface of the first sealing top cover (17). The fixed connecting box (18) is fixedly connected to one side top surface of the fixed connecting box (18). The fixed connecting box (18) is provided with a sliding limiting groove (19). The fixed connecting box (18) is slidably connected to one side top surface of the fixed connecting box (18). The sliding top plate (20) is fixedly connected to one side bottom end of the sliding top plate (20). The packaging carton body (1) is rotatably connected to the edge of the top surface of the side away from the first connecting shaft (16). The second connecting shaft (22) is fixedly connected to one side of the second connecting shaft (22). The second sealing top cover (23) is fixedly connected to one side top surface of the second sealing top cover (23). The pin fixing plate (24) is fixedly connected to one side top surface of the second sealing top cover (23). The pin fixing plate (24) is provided with a pin groove (25).

6. A heavy-duty cushioning packaging carton according to claim 5, characterized in that, The pin block (21) is located inside the fixed connection box (18). The cross-sectional width of the sliding top plate (20) is greater than the cross-sectional width of the sliding limiting groove (19). The connection relationship between the pin block (21) and the fixed connection box (18) is a sliding connection. The positions of the pin fixing plate (24) and the fixed connection box (18) correspond one-to-one. The connection relationship between the pin groove (25) and the pin block (21) is a pin connection.