Offset printing corrugated carton

By designing a detachable offset corrugated cardboard box structure, the problem of replacing the entire corrugated cardboard box after it is damaged during transportation is solved, enabling convenient replacement of damaged parts and reducing replacement costs.

CN223962439UActive Publication Date: 2026-03-03KUNSHAN YONGLI PACKING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Existing corrugated cardboard boxes are easily bumped and damaged during handling, resulting in damage to one side and requiring the entire box to be replaced, which increases replacement costs.

Method used

A corrugated cardboard box for offset printing was designed with a detachable structure, including an L-shaped support rod, a sleeve groove, a limiting component, and a locking component. This allows for the individual replacement of damaged side panels and bottom panels. The top frame can be disassembled by sliding a slide plate and rotating a sleeve shaft, making it convenient to replace damaged side panels and bottom panels.

Benefits of technology

This enhances the convenience of corrugated cardboard boxes, allowing damaged side panels or bottom panels to be replaced individually, thus reducing replacement costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of corrugated cartons, in particular to an offset printing corrugated carton which comprises a bottom frame, L-shaped supporting rods are fixedly installed at the four corners of the top face of the bottom frame, and sleeve grooves are formed in the two sides of each L-shaped supporting rod. The two first offset printing corrugated paper side plates and the two second offset printing corrugated paper side plates are movably connected into the multiple sleeve grooves in a sleeved mode respectively, and when the first offset printing corrugated paper side plates or the second offset printing corrugated paper side plates are damaged, the sliding plates slide to drive the inserting rods to move, so that the first offset printing corrugated paper side plates and the second offset printing corrugated paper side plates are damaged. When one end of each inserting rod is separated from the corresponding inserting hole, limiting on a sleeve shaft is relieved, the sleeve shaft is rotated, when a rectangular block is rotated to a rectangular through groove, a top frame can be detached from four L-shaped supporting rods, and after the top frame is detached, a damaged first offset printing corrugated paper side plate and a damaged second offset printing corrugated paper side plate can be replaced.
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Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard box technology, specifically to an offset-printed corrugated cardboard box. Background Technology

[0002] Currently, corrugated cardboard boxes are widely used in packaging, transportation, and many other industries, serving to protect goods and facilitate packaging, storage, and transportation. The traditional printing method for corrugated cardboard box packaging is letterpress printing, but flexographic printing is also becoming increasingly widespread. Offset printing is a type of planar printing; simply put, offset printing is a printing method that uses a rubber blanket (rubber blanket) to transfer the image from the printing plate to the substrate. It is precisely because of the presence of the rubber blanket that this printing method is named.

[0003] Existing corrugated cardboard boxes may be bumped or knocked during handling, resulting in damage to one side of the box. However, existing corrugated cardboard boxes are all one-piece designs, so when one side of the box is damaged, the entire box needs to be replaced, which increases the replacement cost. In view of this, we propose an offset-printed corrugated cardboard box. Utility Model Content

[0004] The purpose of this utility model is to provide an offset printing corrugated cardboard box to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An offset-printed corrugated cardboard box, comprising:

[0007] The bottom frame has L-shaped support rods fixedly installed at the four corners of its top surface, and slots are provided on both sides of the four L-shaped support rods.

[0008] Two first offset corrugated paper side plates and two second offset corrugated paper side plates are respectively movably sleeved in multiple slots.

[0009] The top frame is movably sleeved on the top of four L-shaped support rods, and the bottom surface of the top frame abuts against the top surfaces of the two first offset corrugated paper side plates and the two second offset corrugated paper side plates.

[0010] Four sets of limiting components are respectively installed in four L-shaped support rods and are used to limit the top frame;

[0011] Side groove, the side groove is opened on one side of the bottom frame, and a corrugated paper base plate is movably sleeved in the side groove;

[0012] A locking assembly is disposed on one side of the bottom frame and is used to limit the offset printing corrugated paper base plate.

[0013] Preferably, the limiting component includes a through hole, which is opened on the top surface of the top frame. A sleeve is rotatably installed on the top end of the L-shaped support rod. The sleeve is movably connected to the through hole. A rectangular block is fixedly installed on the outer wall of the sleeve. The bottom surface of the rectangular block is in contact with the top surface of the top frame. When the rectangular block is in contact with the top surface of the top frame, it will block the top frame and prevent the top frame from falling off the L-shaped support rod.

[0014] Preferably, the limiting component further includes a frame groove, which is formed on the top surface of the top frame and communicates with the through hole. An insertion hole is formed on the outer side wall of the sleeve shaft. A sliding plate is slidably installed in the frame groove. An insertion rod is fixedly installed on one side of the sliding plate. One end of the insertion rod is movably sleeved in the insertion hole. A retaining spring is fixedly installed on one side of the inside of the frame groove. One end of the retaining spring is fixedly connected to one side of the sliding plate. By sleeved in the insertion hole, the sleeve shaft can be limited, thereby preventing the sleeve shaft from rotating and causing the top frame to fall off the L-shaped support rod.

[0015] Preferably, the top surface of the top frame is provided with a rectangular through groove, which is connected to the through hole. The size of the rectangular block matches the size of the rectangular through groove. By rotating the sleeve shaft, when the rectangular block is rotated to the position of the rectangular through groove, the top frame can be disassembled from the four L-shaped support rods.

[0016] Preferably, the locking assembly includes a baffle, which is hinged to one side of the bottom frame. The baffle is located on one side of the side groove, and one side of the baffle abuts against one side of the offset corrugated paper base plate. When the baffle is limited, it will limit the offset corrugated paper base plate within the side groove.

[0017] Preferably, the locking assembly further includes a movable block, which is rotatably mounted on the other side of the bottom frame. A C-shaped slot is provided on one side of the movable block, and a locking post is fixedly installed on one side of the baffle. The locking post is movably engaged with the C-shaped slot. When the locking post is engaged with the C-shaped slot, it will limit the baffle and prevent the baffle from moving.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. When the first or second offset corrugated cardboard side panel of this offset corrugated cardboard box is damaged, the sliding plate moves the insertion rod. When one end of the insertion rod disengages from the insertion hole, the limiting position of the sleeve shaft is released. Rotating the sleeve shaft, when the rectangular block position is rotated to the rectangular through slot position, the top frame can be disassembled from the four L-shaped support rods. After the top frame is disassembled, the damaged first and second offset corrugated cardboard side panels can be replaced, thereby enhancing the convenience of replacing the first and second offset corrugated cardboard side panels.

[0020] 2. When the offset corrugated cardboard base plate of this corrugated cardboard box is damaged, the movable block is rotated. When the C-shaped slot separates from the locking post, the limit on the baffle is released. At this time, the baffle is opened, and the offset corrugated cardboard base plate can be taken out from the side slot to replace the offset corrugated cardboard base plate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the side groove structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the bottom frame structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the top frame structure in this utility model;

[0025] Figure 5 This utility model Figure 4 Enlarged structural diagram of section A in the middle;

[0026] Figure 6 This is a schematic diagram of the structure of the first offset corrugated paper side plate, the second offset corrugated paper side plate, and the offset corrugated paper base plate in this utility model.

[0027] In the diagram: 1. Base frame; 2. Side groove; 3. Offset corrugated paper base plate; 4. L-shaped support rod; 5. Sleeve groove; 6. First offset corrugated paper side plate; 7. Second offset corrugated paper side plate; 8. Baffle; 9. Movable block; 10. C-shaped slot; 11. Locking post; 12. Top frame; 13. Through hole; 14. Sleeve shaft; 15. Rectangular block; 16. Rectangular through groove; 17. Frame groove; 18. Insertion hole; 19. Slide plate; 20. Insert rod; 21. Clamping spring. Detailed Implementation

[0028] 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.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] Please see Figures 1-6 As shown, this utility model provides a technical solution:

[0033] A corrugated cardboard box for offset printing includes: a bottom frame 1, with L-shaped support rods 4 fixedly installed at the four corners of the top surface of the bottom frame 1, and slots 5 opened on both sides of the four L-shaped support rods 4; two first offset corrugated paper side plates 6 and two second offset corrugated paper side plates 7, which are movably fitted into the multiple slots 5; a top frame 12, which is movably fitted onto the tops of the four L-shaped support rods 4, and the bottom surface of the top frame 12 abuts against the top surfaces of the two first offset corrugated paper side plates 6 and the two second offset corrugated paper side plates 7; four sets of limiting components, which are respectively arranged in the four L-shaped support rods 4 and used to limit the top frame 12; and side slots 2, which are opened on one side of the bottom frame 1. The inner movable sleeve contains the offset corrugated paper base plate 3; the locking component is located on one side of the base frame 1 and is used to limit the offset corrugated paper base plate 3. When the first offset corrugated paper side plate 6 or the second offset corrugated paper side plate 7 is damaged, the sliding slide plate 19 drives the insertion rod 20 to move. When one end of the insertion rod 20 is disengaged from the insertion hole 18, the limitation on the sleeve shaft 14 is released. Rotate the sleeve shaft 14. When the rectangular block 15 is rotated to the position of the rectangular through groove 16, the top frame 12 can be removed from the four L-shaped support rods 4. After the top frame 12 is removed, the damaged first offset corrugated paper side plate 6 and the second offset corrugated paper side plate 7 can be replaced, thereby enhancing the convenience of replacing the first offset corrugated paper side plate 6 and the second offset corrugated paper side plate 7.

[0034] In this embodiment, the limiting component includes a through hole 13, which is opened on the top surface of the top frame 12. A sleeve shaft 14 is rotatably installed on the top end of the L-shaped support rod 4. The sleeve shaft 14 is movably connected to the through hole 13. A rectangular block 15 is fixedly installed on the outer side wall of the sleeve shaft 14. The bottom surface of the rectangular block 15 is in contact with the top surface of the top frame 12. When the rectangular block 15 is in contact with the top surface of the top frame 12, it will block the top frame 12 and prevent the top frame 12 from falling off the L-shaped support rod 4.

[0035] In this embodiment, the limiting component also includes a frame groove 17, which is formed on the top surface of the top frame 12 and is connected to the through hole 13. An insertion hole 18 is formed on the outer side wall of the sleeve shaft 14. A sliding plate 19 is slidably installed in the frame groove 17. An insertion rod 20 is fixedly installed on one side of the sliding plate 19. One end of the insertion rod 20 is movably sleeved in the insertion hole 18. A retaining spring 21 is fixedly installed on one side of the inside of the frame groove 17. One end of the retaining spring 21 is fixedly connected to one side of the sliding plate 19. By sleeved in the insertion hole 18, the sleeve shaft 14 can be limited, thereby preventing the sleeve shaft 14 from rotating and causing the top frame 12 to fall off the L-shaped support rod 4.

[0036] In this embodiment, a rectangular through groove 16 is provided on the top surface of the top frame 12. The rectangular through groove 16 is connected to the through hole 13. The specifications of the rectangular block 15 match the specifications of the rectangular through groove 16. By rotating the sleeve shaft 14, when the position of the rectangular block 15 is rotated to the position of the rectangular through groove 16, the top frame 12 can be disassembled from the four L-shaped support rods 4.

[0037] In this embodiment, the locking assembly includes a baffle 8, which is hinged to one side of the bottom frame 1. The baffle 8 is located on one side of the side groove 2, and one side of the baffle 8 abuts against one side of the offset corrugated paper base plate 3. When the baffle 8 is limited, the baffle 8 will limit the offset corrugated paper base plate 3 within the side groove 2.

[0038] In this embodiment, the locking assembly also includes a movable block 9, which is rotatably mounted on the other side of the bottom frame 1. A C-shaped slot 10 is provided on one side of the movable block 9, and a locking post 11 is fixedly installed on one side of the baffle 8. The locking post 11 is movably engaged with the C-shaped slot 10. When the locking post 11 is engaged with the C-shaped slot 10, it will limit the baffle 8 and prevent the baffle 8 from moving.

[0039] In this embodiment, when the first offset corrugated cardboard side panel 6 or the second offset corrugated cardboard side panel 7 is damaged during use, the sliding plate 19 is slidable to move the insertion rod 20. When one end of the insertion rod 20 is disengaged from the insertion hole 18, the limiting position on the sleeve shaft 14 is released. Rotating the sleeve shaft 14, when the rectangular block 15 is rotated to the position of the rectangular through slot 16, the top frame 12 can be removed from the four L-shaped support rods 4. After the top frame 12 is removed, the damaged first offset corrugated cardboard side panel 6 and the second offset corrugated cardboard side panel 7 can be replaced, thereby enhancing the convenience of replacing the first offset corrugated cardboard side panel 6 and the second offset corrugated cardboard side panel 7.

[0040] When the offset corrugated paper base plate 3 is damaged, rotate the movable block 9. When the C-shaped slot 10 separates from the slot 11, the limit on the baffle 8 is released. At this time, the baffle 8 is opened, and the offset corrugated paper base plate 3 can be taken out from the side slot 2 to replace the offset corrugated paper base plate 3.

[0041] 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 preferred examples and are not intended to limit the 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An offset-printed corrugated cardboard box, characterized in that, include: The bottom frame (1) has L-shaped support rods (4) fixedly installed at the four corners of the top surface of the bottom frame (1), and slots (5) are opened on both sides of the four L-shaped support rods (4). Two first offset corrugated paper side plates (6) and two second offset corrugated paper side plates (7) are respectively movably sleeved in multiple sleeve grooves (5); The top frame (12) is movably sleeved on the top of four L-shaped support rods (4). The bottom surface of the top frame (12) abuts against the top surfaces of the two first offset corrugated paper side plates (6) and the two second offset corrugated paper side plates (7). Four sets of limiting components are respectively set in four L-shaped support rods (4) and used to limit the top frame (12); Side groove (2), the side groove (2) is opened on one side of the bottom frame (1), and the offset corrugated paper base plate (3) is movably sleeved in the side groove (2); A locking assembly is disposed on one side of the bottom frame (1) and is used to limit the offset printing corrugated paper base plate (3).

2. The offset-printed corrugated cardboard box according to claim 1, characterized in that: The limiting component includes a through hole (13) which is opened on the top surface of the top frame (12). A sleeve shaft (14) is rotatably installed on the top end of the L-shaped support rod (4). The sleeve shaft (14) is movably connected to the through hole (13). A rectangular block (15) is fixedly installed on the outer side wall of the sleeve shaft (14). The bottom surface of the rectangular block (15) is in contact with the top surface of the top frame (12).

3. The offset-printed corrugated cardboard box according to claim 2, characterized in that: The limiting component also includes a frame groove (17), which is opened on the top surface of the top frame (12). The frame groove (17) is connected to the through hole (13). The outer side wall of the sleeve shaft (14) is provided with an insertion hole (18). A sliding plate (19) is slidably installed in the frame groove (17). A plug rod (20) is fixedly installed on one side of the sliding plate (19). One end of the plug rod (20) is movably sleeved in the insertion hole (18). A retaining spring (21) is fixedly installed on one side of the inside of the frame groove (17). One end of the retaining spring (21) is fixedly connected to one side of the sliding plate (19).

4. The offset-printed corrugated cardboard box according to claim 3, characterized in that: The top surface of the top frame (12) is provided with a rectangular through groove (16), which is connected to the through hole (13). The specifications of the rectangular block (15) are matched with the specifications of the rectangular through groove (16).

5. The offset-printed corrugated cardboard box according to claim 1, characterized in that: The locking assembly includes a baffle (8) which is hinged to one side of the bottom frame (1). The baffle (8) is located on one side of the side groove (2), and one side of the baffle (8) abuts against one side of the offset corrugated paper base plate (3).

6. The offset-printed corrugated cardboard box according to claim 5, characterized in that: The locking assembly also includes a movable block (9), which is rotatably mounted on the other side of the bottom frame (1). A C-shaped slot (10) is provided on one side of the movable block (9), and a locking post (11) is fixedly installed on one side of the baffle (8). The locking post (11) is movably engaged with the C-shaped slot (10).