Transfer carton with corner protection structure
By installing outer and inner protective frames at the corners of the carton, and combining them with components such as reinforcing frames, foot pads, and anti-collision balls, the problem of insufficient protection at the inner and outer corners of the carton is solved, achieving higher compression resistance and durability, extending service life, and supporting component reuse.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AMB GUANGZHOU
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-15
AI Technical Summary
Existing corner protection structures for cardboard boxes can only protect the outer corners and cannot effectively protect the inner corners, making the cardboard boxes easily damaged when they are hit, thus affecting the protective effect and durability.
Design a transfer carton with corner protection structure. The outer and inner protective frames protect the inner and outer sides of the carton, respectively. The structural stability is enhanced by components such as connecting rods and reinforcing frames. The inner plate and foot pads increase the bottom sturdiness, and the anti-collision ball resists the impact force.
It effectively protects the inner and outer corners of the carton, improves its pressure resistance and durability, prevents the carton from collapsing, extends its service life, and the detachable components can be reused, avoiding the need for complete scrapping.
Smart Images

Figure CN224241689U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cardboard box technology, specifically a transfer cardboard box with edge and corner protection structure. Background Technology
[0002] Cardboard boxes are the most widely used packaging products. Depending on the materials used, there are corrugated cardboard boxes, single-layer cardboard boxes, etc., and they come in various specifications and models. Cardboard boxes commonly have three or five layers, while seven-layer boxes are less common. Each layer consists of linerboard, corrugated paper, core paper, and face paper. Linerboard and face paper can be made of kraft paper or kraft paper, while the core paper is made of corrugated paper. The colors and textures of different types of paper are different, and the paper produced by different manufacturers is also different.
[0003] Existing corner protection structures for cardboard boxes typically only protect the outer corners of the box, failing to protect the inner corners. Consequently, the box is still easily damaged when subjected to significant impact forces, affecting the effectiveness of the protection and the durability of the cardboard box. Therefore, this application proposes a transfer cardboard box with corner protection structure to solve the above problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a transfer carton with a corner protection structure, which has the advantages of strong practicality and good stability, and solves the problems mentioned in the background technology.
[0005] This utility model provides the following technical solution: a transfer carton with corner protection structure, comprising a carton body, an outer protective frame installed on the outer corner of the carton body, an inner protective frame installed on the inner corner of the carton body, the outer protective frame and the inner protective frame being fixedly connected by a connecting rod, two protruding grooves 1 and 2 respectively opened at the corners of the carton body, two protruding strips 2 installed on both sides of the inner wall of the outer protective frame, two protruding strips 1 installed on both sides of the outer wall of the outer protective frame, a docking groove opened at the top of the inner protective frame, a reinforcing frame installed on the inner wall of the docking groove, and an inner plate installed at the inner bottom of the carton body.
[0006] As a preferred embodiment of this utility model, four feet are symmetrically fixed to the bottom of the box, and a reinforcing frame is fixedly connected between the four feet.
[0007] As a preferred embodiment of this utility model, the two protruding strips are adapted to be inserted into the inner walls of the two protruding grooves, and the two protruding strips are adapted to be inserted into the inner walls of the two protruding grooves.
[0008] As a preferred technical solution of this utility model, the top of the box is provided with a slot, the bottom of the slot is provided with an insertion hole, the connecting rod is installed on the inner wall of the connecting rod, and the bottom of the connecting rod is fixedly connected with a positioning pin, which is adapted to be inserted into the inner wall of the insertion hole.
[0009] As a preferred embodiment of this utility model, two anti-collision balls are installed on the outer wall of the outer protective frame, and a sealing cover is installed on the top of the box.
[0010] As a preferred embodiment of this utility model, the reinforcing frame is in close contact with the inner wall of the box body at positions away from the docking groove.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] This transfer carton with corner protection structure protects the inner and outer corners of the carton with an outer and inner protective frame, respectively. The reinforcing frame can be inserted into the inner wall of the docking slot to withstand the impact force on the carton from all sides. The reinforcing frame can be removed from the inner wall of the docking slot, and the outer and inner protective frames can be removed from the inner and outer corners of the carton for continued use, thus avoiding the need for the entire carton to be scrapped.
[0013] This transfer carton with corner protection features uses foot pads to limit the distance between the bottom of the carton and the ground, preventing water from sticking to the bottom of the carton when the ground is wet. The reinforcing frame increases the sturdiness of the bottom of the carton, further ensuring that it will not collapse or be damaged when a large amount of goods are stacked inside, thus improving its load-bearing capacity. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic diagram of the structure of this utility model from below;
[0016] Figure 3 This is a schematic diagram of the sealing cap structure of this utility model;
[0017] Figure 4 This is a cross-sectional view and a partially enlarged structural diagram of the box body of this utility model;
[0018] Figure 5 This is a schematic diagram of the outer and inner protective frames of this utility model.
[0019] In the diagram: 1. Box body; 2. Sealing cover; 3. Foot pads; 4. Reinforcing frame; 5. Outer protective frame; 6. Connecting rod; 7. Inner protective frame; 8. Raised strip one; 9. Raised strip two; 10. Raised groove one; 11. Raised groove two; 12. Slot; 13. Insertion hole; 14. Positioning pin; 15. Connecting groove; 16. Reinforcing frame; 17. Anti-collision ball; 18. Internal plate. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1-5 A transfer carton with corner protection structure includes a carton body 1. An outer protective frame 5 is installed on the outer corner wall of the carton body 1, and an inner protective frame 7 is installed on the inner corner wall of the carton body 1. The outer protective frame 5 and the inner protective frame 7 are fixedly connected by a connecting rod 6. Two protrusions 10 and 11 are respectively opened at the corners of the carton body 1. Two protrusions 9 and 8 are installed on both sides of the inner wall of the outer protective frame 5. A docking groove 15 is opened at the top of the inner protective frame 7. A reinforcing frame 16 is installed on the inner wall of the docking groove 15. An inner plate 18 is installed at the bottom of the carton body 1.
[0022] See Figure 2 Four feet 3 are symmetrically fixed to the bottom of the container 1, and a reinforcing frame 4 is fixedly connected between the four feet 3. This limits the distance between the bottom of the container 1 and the ground, ensuring that water will not stick to the bottom of the container 1 when the ground is wet. The reinforcing frame 4 increases the sturdiness of the bottom of the container 1, further ensuring that the container 1 will not collapse or be damaged after a large amount of goods are stacked inside, thus improving the load-bearing capacity.
[0023] See Figure 4 and Figure 5 Two protruding strips 9 are adapted to be inserted into the inner wall of two protruding grooves 10, and two protruding strips 8 are adapted to be inserted into the inner wall of two protruding grooves 11, so that the outer protective frame 5 and the inner protective frame 7 can be stably installed on the inner and outer sides of the box 1 respectively, thereby protecting the inner and outer sides of the corners of the box 1, ensuring that the corners will not be easily damaged when they are hit, and improving its pressure resistance and durability.
[0024] See Figure 4 and Figure 5 The top of the box 1 is provided with a slot 12, and the bottom of the slot 12 is provided with an insertion hole 13. The connecting rod 6 is installed on the inner wall of the connecting rod 6, and the bottom of the connecting rod 6 is fixedly connected with a positioning pin 14. The positioning pin 14 is adapted to be inserted into the inner wall of the insertion hole 13, so that the top of the box 1 will not bulge after the connecting rod 6 is installed into the inner wall of the slot 12, thus ensuring the flatness of the top of the box 1. Furthermore, the positioning pin 14 can be inserted into the inner wall of the insertion hole 13 to further position the outer protective frame 5 and the inner protective frame 7 placed on the inner and outer sides of the box 1, ensuring that they can be stably attached to the inner and outer sides of the box 1.
[0025] See Figure 4 and Figure 5 Two anti-collision balls 17 are installed on the outer wall of the outer protective frame 5, and a sealing cover 2 is installed on the top of the box 1, which can be used to resist the force when the outer protective frame 5 collides with a hard object, ensuring that the collision force is not transmitted to the box 1, further improving the service life of the box 1, and the sealing cover 2 can be used to seal the opening at the top of the box 1.
[0026] See Figure 4 The reinforcing frame 16, located away from the docking groove 15, is tightly fitted to the inner wall of the box 1, which can be used to reinforce the inner side of the box 1, ensuring that the outer wall of the box 1 will not be easily damaged when subjected to impact force, and can offset part of the force.
[0027] The working principle is as follows: First, the outer protective frame 5 and the inner protective frame 7 can be used to protect the inner and outer sides of the corners of the box 1. The reinforcing frame 16 can be inserted into the inner wall of the docking groove 15 to resist the impact force on the outer wall of the box 1. Then, the materials to be placed can be placed on the top of the inner plate 18. The distance between the bottom of the box 1 and the ground can be limited by the foot pads 3 to ensure that the bottom of the box 1 will not stick to the ground when there is water. The reinforcing frame 4 can increase the sturdiness of the bottom of the box 1, and further ensure that the box 1 will not collapse and be damaged after a lot of goods are piled up inside, thus improving the load-bearing capacity. The anti-collision ball 17 can resist the force when the outer protective frame 5 collides with hard objects, ensuring that the collision force will not be transmitted to the box 1. If the box 1 is accidentally damaged, the reinforcing frame 16 can be removed from the inner wall of the docking groove 15, and then the outer protective frame 5 and the inner protective frame 7 can be removed from the inner and outer sides of the corners of the box 1 for continued use, so as not to scrap the whole box.
[0028] Although embodiments of the present invention have been shown and described, 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 transfer carton with corner protection structure, comprising a carton body (1), characterized in that: An outer protective frame (5) is installed on the outer corner of the box (1), and an inner protective frame (7) is installed on the inner corner of the box (1). The outer protective frame (5) and the inner protective frame (7) are fixedly connected by a connecting rod (6). Two protrusions 1 (10) and 2 (11) are respectively opened at the corner of the box (1). Two protrusions 2 (9) are installed on both sides of the inner wall of the outer protective frame (5). Two protrusions 1 (8) are installed on both sides of the outer wall of the outer protective frame (5). A docking groove (15) is opened at the top of the inner protective frame (7). A reinforcing frame (16) is installed on the inner wall of the docking groove (15). An inner plate (18) is installed at the bottom of the box (1).
2. A transfer carton with corner protection structure according to claim 1, characterized in that: The bottom of the box (1) is symmetrically fixed with four foot pads (3), and a reinforcing frame (4) is fixedly connected between the four foot pads (3).
3. A transfer carton with corner protection structure according to claim 1, characterized in that: Two of the protrusions (9) are adapted to be inserted into the inner walls of the two protrusions (10), and two of the protrusions (8) are adapted to be inserted into the inner walls of the two protrusions (11).
4. A transfer carton with corner protection structure according to claim 1, characterized in that: The top of the box (1) is provided with a slot (12), and the bottom of the slot (12) is provided with an insertion hole (13). The connecting rod (6) is installed on the inner wall of the connecting rod (6), and the bottom of the connecting rod (6) is fixedly connected with a positioning pin (14), and the positioning pin (14) is adapted to be inserted into the inner wall of the insertion hole (13).
5. A transfer carton with corner protection structure according to claim 1, characterized in that: Two anti-collision balls (17) are installed on the outer wall of the outer protective frame (5), and a sealing cover (2) is installed on the top of the box (1).
6. A transfer carton with corner protection structure according to claim 1, characterized in that: The reinforcing frame (16) is located away from the docking groove (15) and is closely fitted to the inner wall of the box (1).