Compression-resistant corrugated carton

By introducing triangular support structures and three-dimensional support architecture into corrugated boxes, the problem of insufficient compression resistance of corrugated boxes in heavy cargo stacking and long-distance transportation is solved, achieving high strength compression resistance and reliable sealing, thereby improving the safety of logistics transportation and packaging stability.

CN224225552UActive Publication Date: 2026-05-12JIAXING DAYI PACKAGING MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIAXING DAYI PACKAGING MATERIALS CO LTD
Filing Date
2025-05-20
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing corrugated cardboard boxes are unable to withstand continuous loads and dynamic impacts under heavy cargo stacking, long-distance bumpy transportation, or harsh warehousing environments, resulting in box deformation, increased breakage rate, and affecting the reliability of logistics transportation and packaging safety.

Method used

The inner and outer cardboard boxes are supported by a triangular support structure, combined with a three-dimensional support structure consisting of four telescopic corner brackets and corner support brackets, forming a multi-layered reinforcement system. The lid is quickly fixed by a fixing mechanism.

Benefits of technology

Maintaining the structural integrity of corrugated cardboard boxes under extreme working conditions reduces the risk of breakage, improves the safety and stability of logistics transportation and packaging, and ensures the safety of goods inside the boxes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a compression-resistant corrugated carton, and relates to the technical field of corrugated cartons. Comprising a compression-resistant mechanism, a fixing mechanism is fixedly connected to the outer surface wall of the compression-resistant mechanism, the compression-resistant mechanism comprises an inner-layer carton, four supporting frames are fixedly connected to the outer surface wall of the inner-layer carton, and supporting connecting rods are fixedly connected to the inner surface walls of the four supporting frames; and a group of supporting inclined rods are fixedly connected between the four supporting frames and the outer surface walls of the four supporting connecting rods. According to the utility model, under the interaction of all the components of the compression-resistant mechanism, the high-strength compression-resistant performance of the corrugated carton is realized, so that the corrugated carton can enduringly resist continuous load and dynamic impact in heavy goods stacking, long-distance bumping transportation or severe storage environments, the deformation of the carton body is effectively inhibited, the damage risk is reduced, and the service life of the corrugated carton is prolonged. Omnibearing and high-reliability protection is provided for internal goods, and logistics transportation safety and packaging stability are remarkably improved.
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Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard box technology, and in particular to a pressure-resistant corrugated cardboard box. Background Technology

[0002] Cardboard boxes are box-shaped packaging containers made primarily of paper products through processes such as cutting, folding, gluing, or stapling. They are lightweight, easy to process, low in cost, and recyclable, and are widely used in the fields of commodity storage, transportation, and sales packaging.

[0003] In the process of storing, transporting, and packaging goods, traditional packaging materials need to balance cushioning, lightness, and cost-effectiveness. Ordinary cardboard cannot meet these requirements. Therefore, corrugated boxes have emerged. Through a unique corrugated structure design and multi-layer cardboard combination, they can effectively improve compression resistance and cushioning performance, while reducing material costs and transportation weight, making them the mainstream choice for modern logistics packaging.

[0004] However, existing corrugated cardboard boxes have the following shortcomings:

[0005] In the existing technology, corrugated boxes need to meet the dual requirements of high strength compression resistance and lightweight transportation. Although existing corrugated boxes have a certain compression resistance due to their multi-layer structure, this compression resistance is difficult to withstand continuous loads and dynamic impacts in heavy cargo stacking, long-distance bumpy transportation, or harsh warehousing environments. This leads to box deformation, increased damage rate, increased risk of damage to internal goods, and affects the reliability of logistics transportation and packaging safety.

[0006] Therefore, we propose a compression-resistant corrugated cardboard box to solve the problems mentioned above. Utility Model Content

[0007] The purpose of this utility model is to provide a pressure-resistant corrugated cardboard box. First, it utilizes the triangular support structure between the inner and outer cardboard boxes to achieve preliminary mechanical support through the geometric stability of the triangle. At the same time, it forms a multi-layered reinforcement system by combining four telescopic corner brackets and corner support brackets to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a pressure-resistant corrugated cardboard box, including a pressure-resistant mechanism, wherein a fixing mechanism is fixedly connected to the outer wall of the pressure-resistant mechanism;

[0009] The compression-resistant mechanism includes an inner cardboard box, four support frames fixedly connected to the outer wall of the inner cardboard box, support connecting rods fixedly connected to the inner walls of the four support frames, a set of support diagonal rods fixedly connected between the outer walls of the four support frames and the four support connecting rods, an outer cardboard box fixedly connected between the outer walls of the four sets of support diagonal rods, three box covers provided between the top of the inner cardboard box and the outer cardboard box, support plates fixedly connected to the inner walls of two of the four support frames, a fixing groove provided on one side of the outer wall of each support plate, a bottom plate movably contacting the inner wall of the inner cardboard box, and four movable grooves provided on the top of the bottom plate.

[0010] Preferably, each of the four movable slots has a first return spring fixedly connected to its inner wall, and each of the four movable slots has a movable block movably inserted into its inner wall. The outer walls of the four first return springs are fixedly connected to one side of the outer wall of the movable block. Each of the four movable blocks has a sliding groove at its top, and a slider is slidably embedded in the inner wall of each of the four sliding grooves. The top of the base plate has four limiting grooves, and each of the four movable blocks has a sealing cap fixedly connected to one side of its outer wall. The outer walls of the four sealing caps are movably inserted into the interior of the base plate.

[0011] Preferably, the inner wall of the base plate is fixedly connected with four fixing rods, the outer walls of the four fixing rods are movably fitted with rotating blocks, the tops of the four rotating blocks are fixedly connected with corner support frames, the inner walls of the four corner support frames are movably inserted with telescopic corner frames, and the inner walls of the four telescopic corner frames are threaded with a set of fixing bolts.

[0012] Preferably, the fixing mechanism includes a fixing block, and a mounting groove is provided on one side of the outer wall of the fixing block. A second reset spring is fixedly connected to the inner surface of the mounting groove.

[0013] Preferably, a pull block is fixedly connected to the outer wall of the second reset spring, a locking block is fixedly connected to one side of the outer wall of the pull block, and an inserting block is movably sleeved on the outer wall of the locking block.

[0014] Preferably, a slot is provided on one side of the outer wall of the embedded block, and the outer wall of the block is movably inserted into the slot.

[0015] Preferably, the outer wall of the outer carton is fixedly connected to one side of the outer wall of the fixing block, and one side of the outer wall of one of the three box lids is fixedly connected to one side of the outer wall of the embedding block.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] 1. In this utility model, through the interaction of the components of the anti-compression mechanism, the triangular support structure between the inner and outer cardboard boxes is first utilized to achieve initial mechanical support through the geometric stability of the triangle. Simultaneously, a multi-layered reinforcement system is formed by combining four telescopic corner frames and corner support frames to create a three-dimensional support structure. This composite structural design achieves high-strength compression resistance of the corrugated cardboard box, enabling it to withstand continuous loads and dynamic impacts under heavy cargo stacking, long-distance bumpy transportation, or harsh warehousing environments. It effectively suppresses box deformation, reduces the risk of damage, and provides comprehensive and highly reliable protection for the internal goods, significantly improving the safety and stability of logistics transportation and packaging.

[0018] 2. In this utility model, the corrugated carton lid is quickly fixed by the interaction of the components of the fixing mechanism, ensuring that the lid is firmly fixed, thereby achieving a reliable seal and protecting the safety of the goods inside the box. Moreover, this method is simple and convenient to operate, greatly improving packaging efficiency and reducing the complexity of manual operation. Attached Figure Description

[0019] Figure 1 This utility model provides a perspective view of the main structure of a compression-resistant corrugated cardboard box;

[0020] Figure 2 This utility model provides a three-dimensional exploded view of the compression-resistant mechanism in a compression-resistant corrugated cardboard box;

[0021] Figure 3 This utility model provides a cross-sectional view of the compression-resistant mechanism in a compression-resistant corrugated cardboard box.

[0022] Figure 4 This utility model provides a three-dimensional sectional view of the compression-resistant mechanism in a compression-resistant corrugated cardboard box.

[0023] Figure 5 A three-dimensional sectional view of the fixing mechanism in a pressure-resistant corrugated cardboard box is provided for this utility model.

[0024] Legend: 1. Compression-resistant mechanism; 101. Inner cardboard box; 102. Support frame; 103. Support connecting rod; 104. Support diagonal rod; 105. Outer cardboard box; 106. Box lid; 107. Support plate; 108. Fixing groove; 109. Base plate; 110. Movable groove; 111. First return spring; 112. Movable block; 113. Slide groove; 114. Sliding block; 115. Limiting groove; 116. Sealing cover; 117. Fixing rod; 118. Rotating block; 119. Corner support frame; 120. Telescopic corner frame; 121. Fixing bolt; 2. Fixing mechanism; 201. Fixing block; 202. Mounting groove; 203. Second return spring; 204. Pull block; 205. Locking block; 206. Embedding block; 207. Locking groove. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0027] Example 1, as shown in the attached document Figure 1 -Appendix Figure 5 As shown, this utility model provides a technical solution: a pressure-resistant corrugated cardboard box, including a pressure-resistant mechanism 1, and a fixing mechanism 2 is fixedly connected to the outer wall of the pressure-resistant mechanism 1;

[0028] The compression-resistant mechanism 1 includes an inner cardboard box 101. Four support frames 102 are fixedly connected to the outer wall of the inner cardboard box 101. Support connecting rods 103 are fixedly connected to the inner walls of each of the four support frames 102. A set of support diagonal rods 104 is fixedly connected between the outer walls of each of the four support frames 102 and the four support connecting rods 103. An outer cardboard box 105 is fixedly connected between the outer walls of the four sets of support diagonal rods 104. Three box covers 106 are provided between the top of the inner cardboard box 101 and the top of the outer cardboard box 105. Two of them have support plates 107 fixedly connected to their inner walls. The outer wall of each support plate 107 has a fixing groove 108. The inner wall of the inner carton 101 is in contact with a bottom plate 109. The top of the bottom plate 109 has four movable grooves 110. The inner walls of the four movable grooves 110 are fixedly connected to first return springs 111. Movable blocks 112 are movably inserted into the inner walls of the four movable grooves 110. The outer wall of each of the four first return springs 111 is fixedly connected to the outer wall of the movable block 112. Each of the four movable blocks 112 has a sliding groove 113 on its top, and a slider 114 is slidably embedded in the inner wall of each of the four sliding grooves 113. The top of the base plate 109 has four limiting grooves 115. A sealing cover 116 is fixedly connected to one side of the outer wall of each of the four movable blocks 112, and the outer wall of each of the four sealing covers 116 is movably inserted into the interior of the base plate 109. Four fixing rods 117 are fixedly connected to the inner wall of the base plate 109. A rotating block 118 is movably fitted onto the outer wall of each of the four fixing rods 117. An edge support frame 119 is fixedly connected to the top of each of the four rotating blocks 118. A telescopic edge frame 120 is movably inserted into the inner wall of each of the four edge support frames 119. A set of fixing bolts 121 is threadedly connected to the inner wall of each of the four telescopic edge frames 120.

[0029] The overall effect of Embodiment 1 is as follows: When used in harsh transportation environments such as heavy cargo stacking and long-distance bumpy rides, the four corner support frames 119 are first unfolded and tightly engaged with the inner corners of the carton to form an initial support structure. Then, the telescopic corner frame 120 is adjusted to be the same height as the carton and tightened by the fixing bolts 121, so that the two together form a stable three-dimensional support structure inside the carton. At the same time, the composite support structure between the inner carton 101 and the outer carton 105 works together. The four support frames 102 provide rigid support for the four walls of the carton. Together with the triangular stabilization system formed by the support connecting rod 103 and the support diagonal rod 104, the deformation resistance of the carton is significantly enhanced. This multi-support structure can effectively disperse external pressure and ensure that the corrugated carton can maintain its structural integrity under extreme working conditions, providing reliable protection for the internal goods.

[0030] Example 2, as Figure 2-5 As shown, the fixing mechanism 2 includes a fixing block 201. A mounting groove 202 is provided on one side of the outer wall of the fixing block 201. A second return spring 203 is fixedly connected to the inner surface wall of the mounting groove 202. A pull block 204 is fixedly connected to the outer surface wall of the second return spring 203. A locking block 205 is fixedly connected to one side of the outer wall of the pull block 204. An inserting block 206 is movably fitted onto the outer surface wall of the locking block 205. A slot 207 is provided on one side of the outer wall of the inserting block 206, and the outer surface wall of the locking block 205 is movably inserted into the slot 207. The outer surface wall of the outer carton 105 is fixedly connected to one side of the outer wall of the fixing block 201. One side of the outer wall of one of the three carton covers 106 is fixedly connected to one side of the outer wall of the inserting block 206.

[0031] The effect achieved by the entire embodiment 2 is as follows: When it is necessary to close the lid 106 to seal the goods inside the box, first rotate the lids 106 on both sides and pull the pull block 204 simultaneously. The pull block 204 drives the locking block 205 to move outward against the elastic force of the second return spring 203, making room for the inserting block 206 to insert into the corresponding slot. After the middle lid 106 is closed, the inserting block 206 is accurately inserted into the inserting slot at the top of the fixing block 201. At this time, the elastic rebound force of the second return spring 203 is used to drive the locking block 205 to quickly embed into the slot 207, forming a firm mechanical locking structure, ensuring that the lid 106 is firmly fixed, thereby achieving a reliable seal and ensuring the safety of the goods inside the box.

[0032] The working principle of the entire device is as follows: When using this corrugated cardboard box in harsh transportation environments such as heavy cargo stacking and long-distance bumpy transport, first pull the four corner support frames 119 to make them fit tightly against the four corners inside the cardboard box, forming initial stable support. Then move the telescopic corner frame 120 to make it consistent with the height of the cardboard box and tighten it with fixing bolts 121, so that the four telescopic corner frames 120 and the four corner support frames 119 form a stable three-dimensional support structure inside the box. At the same time, the internal support structure of the inner cardboard box 101 and the outer cardboard box 105 plays its role. The four support frames 102 provide strong support for the four sides of the cardboard box. Then, through the four support connecting rods 103 and the four sets of support diagonal rods 104, a stable triangular support system is formed to ensure the structural stability of the corrugated cardboard box. To fold the corrugated cardboard box, simply pull the four corner support frames 119. Rotate the bottom plate 109 into the bottom plate, and pull the four movable blocks 112 in sequence to make the corresponding sliders 114 engage in the limiting grooves 115, so that the movable blocks 112 disengage from the fixed grooves 108 and remain fixed. After all four movable blocks 112 and sliders 114 have been operated, the fixed constraint between the bottom plate 109 and the carton is released, and the bottom plate 109 can be disassembled for folding the carton. When it is necessary to close the lid 106 to seal the goods inside the box, first rotate the two side lids 106, pull the pull block 204, so that the locking block 205 moves outward against the elastic force of the second return spring 203. Then rotate the middle lid 106 and insert the embedding block 206 into the embedding groove on one side of the fixed block 201. Then, use the elastic restoring force of the second return spring 203 to insert the locking block 205 into the locking groove 207 to ensure that the lid 106 is stable, thereby achieving a reliable seal for the goods inside the box.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A compression-resistant corrugated cardboard box, characterized in that: It includes a pressure-resistant mechanism (1), and a fixing mechanism (2) is fixedly connected to the outer wall of the pressure-resistant mechanism (1); The anti-compression mechanism (1) includes an inner cardboard box (101), four support frames (102) are fixedly connected to the outer wall of the inner cardboard box (101), support connecting rods (103) are fixedly connected to the inner wall of each of the four support frames (102), a set of support diagonal rods (104) is fixedly connected between the outer walls of the four support frames (102) and the four support connecting rods (103), and an outer layer is fixedly connected between the outer walls of the four sets of support diagonal rods (104). The cardboard box (105) has three lids (106) between the top of the inner cardboard box (101) and the top of the outer cardboard box (105). The inner walls of two of the four support frames (102) are fixedly connected to support plates (107). The outer wall of each support plate (107) has a fixing groove (108). The inner wall of the inner cardboard box (101) is in contact with a bottom plate (109). The top of the bottom plate (109) has four movable grooves (110).

2. The compression-resistant corrugated cardboard box according to claim 1, characterized in that: Each of the four movable slots (110) has a first return spring (111) fixedly connected to its inner wall. Each of the four movable slots (110) has a movable block (112) movably inserted into its inner wall. The outer wall of each of the four first return springs (111) is fixedly connected to the outer wall of each movable block (112). Each of the four movable blocks (112) has a sliding groove (113) on its top. Each of the four sliding grooves (113) has a slider (114) slidably embedded in its inner wall. The bottom plate (109) has four limiting grooves (115) on its top. Each of the four movable blocks (112) has a sealing cover (116) fixedly connected to one side of its outer wall. The outer walls of the four sealing covers (116) are movably inserted into the bottom plate (109).

3. A compression-resistant corrugated cardboard box according to claim 2, characterized in that: The inner wall of the base plate (109) is fixedly connected with four fixing rods (117), and the outer walls of the four fixing rods (117) are movably fitted with rotating blocks (118). The tops of the four rotating blocks (118) are fixedly connected with corner support frames (119), and the inner walls of the four corner support frames (119) are movably fitted with telescopic corner frames (120). The inner walls of the four telescopic corner frames (120) are threaded with a set of fixing bolts (121).

4. A compression-resistant corrugated cardboard box according to claim 3, characterized in that: The fixing mechanism (2) includes a fixing block (201), and a mounting groove (202) is provided on one side of the outer wall of the fixing block (201). A second return spring (203) is fixedly connected to the inner surface of the mounting groove (202).

5. A compression-resistant corrugated cardboard box according to claim 4, characterized in that: The outer wall of the second return spring (203) is fixedly connected to a pull block (204), and a locking block (205) is fixedly connected to one side of the outer wall of the pull block (204). The outer wall of the locking block (205) is movably fitted with an inserting block (206).

6. A compression-resistant corrugated cardboard box according to claim 5, characterized in that: A slot (207) is provided on one side of the outer wall of the embedded block (206), and the outer wall of the card block (205) is movably inserted into the inside of the slot (207).

7. A compression-resistant corrugated cardboard box according to claim 6, characterized in that: The outer wall of the outer carton (105) is fixedly connected to one side of the outer wall of the fixing block (201), and one side of the outer wall of one of the three box covers (106) is fixedly connected to one side of the outer wall of the embedding block (206).