Carton bottom reinforcing structure
By designing a reinforced bottom structure for the cardboard box and utilizing components such as a support frame, adjustment kit, and elastic straps, the problem of damage to beverage packaging cardboard boxes caused by bumps during transportation was solved, improving the load-bearing capacity and stability of the cardboard box and ensuring transportation safety.
Patent Information
- Application Number
- CN202520701976.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-04-15
AI Technical Summary
Existing beverage packaging cartons are prone to damage and leakage during transportation due to bumps and collisions. The bottom of the cartons becomes damp and weakens, making them unable to support the weight of the beverages inside. This leads to damage, losses, and damage to surrounding items and the environment.
Design a bottom reinforcement structure for a cardboard box, including a support frame, an adjustable bottom rod, an adjustment kit, a swing bottom component, an extension arm assembly, corner clips, and an elastic pull strap. Precise adjustment and stable support are achieved through locking bolts and scale markings. Reinforcing ribs and rubber pads are added to improve load-bearing capacity and cushioning.
It improves the load-bearing capacity and stability of cardboard boxes, enhances the adaptability to different cardboard box sizes, improves safety and convenience during transportation, and reduces maintenance costs.
Smart Images

Figure CN223751365U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cardboard box production technology, and in particular relates to a cardboard box bottom reinforcement structure. Background Technology
[0002] In today's logistics and transportation industry, cardboard boxes are a widely used packaging material, undertaking the packaging tasks of various items, especially in the field of beverage packaging, where they are used very frequently. However, there are many problems to be solved with existing cardboard boxes used for beverage packaging.
[0003] In detail, during transportation, due to unavoidable factors such as bumps and collisions, the contents of the beverage packaging boxes often suffer partial damage. Once the beverage leaks, the bottom of the box will be the first to get damp. After the paper material gets damp, its original strength and toughness will drop sharply. This makes it difficult for the bottom of the box to support the weight of the remaining intact beverage during subsequent handling, making it very easy to break. Once the bottom of the box is broken, the intact beverage inside will face a huge risk of falling out, not only causing a large loss of beverage, but also potentially affecting surrounding items and the transportation environment.
[0004] Therefore, it is particularly urgent and necessary to develop a bottom reinforcement structure that can effectively solve the above-mentioned problems of existing cardboard boxes in the packaging and transportation of alcoholic beverages. Utility Model Content
[0005] The purpose of this utility model is to provide a reinforced bottom structure for existing beverage packaging cartons. This structure addresses the problem that beverages are damaged and leaked during transportation due to bumps and collisions, which leads to a decrease in the strength and toughness of the bottom of the cartons after they become damp. As a result, the cartons cannot withstand the weight of the intact beverages inside during subsequent handling, causing beverage loss and affecting surrounding items and the transportation environment.
[0006] The present invention achieves the above objectives through the following technical solution: a bottom reinforcement structure for a cardboard box, comprising a cardboard box, wherein a reinforcement structure for protecting the bottom of the cardboard box is provided below the cardboard box;
[0007] The reinforcement structure includes a support frame, and an adjusting base rod is provided inside the cavity of the support frame. Two sets of adjusting components are slidably arranged on the adjusting base rod. The adjusting components are engaged with the adjusting base rod by a locking wrench. Each set of adjusting components is provided with a swing base. Each swing base is rotatably provided with two sets of extension arm assemblies. The ends of the extension arm assemblies are rotatably provided with corner clips. The corner clips are engaged with the extension arm assemblies by a first locking bolt. An elastic pull strap is provided between the two sets of corner clips at opposite corners.
[0008] Further, the support frame is a rectangular frame structure, and reinforcing rib plates are arranged at four corners of inner walls of the support frame.
[0009] Further, a handle is arranged on each of the side walls at the two ends of the support frame.
[0010] Further, a scale mark is arranged on the side wall of the adjusting bottom rod, and the adjusting sleeve can be accurately adjusted on the adjusting bottom rod through the scale mark.
[0011] Further, the extension arm assembly comprises an inner arm and an outer arm which are sleeved with each other, and the inner arm and the outer arm are matched through a second locking bolt.
[0012] Further, a rubber pad is arranged on the inner side of the corner clamping piece.
[0013] Further, the elastic pull belt is made of stretchable elastic material, and the two ends of the elastic pull belt are detachably connected with the corresponding corner clamping pieces through hooks.
[0014] Beneficial effects: the utility model discloses reasonable design, simple and stable structure, and strong practicality has the following beneficial effects:
[0015] 1, strengthen the bearing and stability: the support frame adopts the rectangular frame structure, and the reinforcing rib plate is additionally arranged at four corners of the inner wall, and the overall bearing capacity is greatly improved;
[0016] 2, improve the structure adaptation flexibility: the adjusting bottom rod and the adjusting sleeve cooperate through the locking wrench, and the side wall of the adjusting bottom rod is provided with a scale mark, so that the user can easily and accurately adjust the length of the reinforcing structure according to different specifications of cartons, and the universality of the reinforcing structure is greatly improved;
[0017] 3, realize all-around accurate support: the swinging bottom piece, the extension arm assembly and the adjustable inner arm and outer arm thereof can be adjusted according to the actual specifications of the carton bottom through the first and second locking bolts, so as to provide accurate and stable support for the carton bottom;
[0018] 4, optimize the elastic support and the convenience of maintenance: the elastic pull belt is made of stretchable elastic material, and the two ends are detachably connected with the corner clamping pieces through hooks, which not only can adjust the length according to the adjustment of the reinforcing structure, but also can support the carton bottom, and is convenient for daily maintenance and replacement;
[0019] 5, improve the convenience of carrying operation: the handle is arranged at the two ends of the support frame, and the safety and convenience of the carrying link are improved by fully considering the carrying operation demand. BRIEF DESCRIPTION OF DRAWINGS
[0020] Fig. 1 is a schematic view of the utility model;
[0021] Fig. 2 It is the schematic view of the reinforcing structure of the utility model;
[0022] Fig. 3 It is the schematic view of the extension arm assembly of the utility model.
[0023] In the drawing: 1-paper box, 2-reinforcing structure;
[0024] 201-support frame, 202-adjusting bottom rod, 203-adjusting set, 204-locking wrench, 205-swinging bottom piece, 206-extension arm assembly, 207-corner clamping piece, 208-first locking bolt, 209-elastic pull belt, 2010-gripping handle;
[0025] 2061-inner arm, 2062-outer arm, 2063-second locking bolt. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0027] Embodiment one:
[0028] Combined Figs. 1-3 As shown in the reinforcing structure of the bottom of a paper box, it comprises a paper box 1, and a reinforcing structure 2 for ensuring the safety of the bottom of the paper box 1 is equipped below the paper box 1;
[0029] The reinforcing structure 2 takes the support frame 201 as the basic load-bearing component, which is sufficient to withstand the pressure in various handling and transportation scenarios. The adjusting bottom rod 202 is horizontally and accurately placed in the internal hollow cavity of the support frame 201. The surface of the adjusting bottom rod 202 is polished and treated with a special coating to ensure smooth relative sliding of the two sets of adjusting sleeves 203 on its surface, reducing friction resistance while ensuring the stability of the adjustment process. The adjusting sleeves 203 and the adjusting bottom rod 202 are tightly and reliably matched by the special locking wrench 204. When the length of the reinforcing structure needs to be adjusted according to the size of the carton 1 in actual use scenarios, the user only needs to easily operate the locking wrench 204 to loosen it. At this time, the adjusting sleeve 203 can be easily pushed along the adjusting bottom rod 202 until it reaches the precise position that matches the size of the carton 1. Then, the locking wrench 204 is tightened again, and the adjusting sleeve 203 is firmly locked in place, ensuring the stability and adaptability of the reinforcing structure. The swing bottom piece 205 is installed at the top of each of the two adjusting sleeves 203. Two sets of extension arm assemblies 206 are rotatably arranged on each swing bottom piece 205. The extension arm assemblies 206 rotate around the connection point with the swing bottom piece 205 by a certain angle. The end of the extension arm assembly 206 is stably connected with the corner clamping piece 207 through a rotating shaft. The corner clamping piece 207 and the extension arm assembly 206 are angle-adjusted and fixed by the first locking bolt 208. When facing different sizes of carton 1 bottom, precise clamping protection is needed. The operator only needs to loosen the first locking bolt 208 to freely adjust the angle of the corner clamping piece 207, so that it can be tightly and closely clamped into the corner position of the carton 1 bottom to provide strong support and fixation for the carton 1 bottom. After adjustment, the first locking bolt 208 is tightened again, and the corner clamping piece 207 is firmly clamped to the carton 1 corner to ensure the stability of the carton 1 bottom during handling and transportation. It is particularly worth mentioning that the elastic pull belt 209 is specially added between the two corner clamping pieces 207 to tightly connect the opposite corner clamping pieces 207 through its elastic tension, forming a stable support network.
[0030] The support frame 201 in this embodiment adopts a rectangular frame structure with excellent stability and balanced stress distribution characteristics. Reinforcing ribs are cleverly and firmly arranged at the four corners of its internal space to ensure that the entire structure system is optimal, greatly improving the overall durability and providing reliable support for the carton 1 bottom, effectively avoiding the risk of carton 1 bottom damage caused by deformation of the support frame 201.
[0031] The two ends of the support frame 201 are provided with a handle 2010, which is designed to match the natural posture of the human hand, providing a comfortable and stable grip for the user. At the same time, the user can exert force naturally and easily, ensuring that the entire reinforcing structure 2 remains balanced when lifted.
[0032] The side walls of the adjusting bottom rod 202 are provided with a series of scale markings, providing a reliable and accurate reference for adjusting the position of the adjusting sleeve 203. This precise adjustment function achieved through scale markings allows the user to quickly and accurately adjust the length of the reinforcing structure 2 according to the bottom requirements of different size cartons 1, greatly improving work efficiency.
[0033] The extension arm assembly 206 is mainly composed of an inner arm 2061 and an outer arm 2062 that are connected to each other. The outer diameter of the inner arm 2061 is precisely machined to match the inner diameter of the outer arm 2062, ensuring that they can be tightly connected and smoothly slide relative to each other. At the joint of the inner arm 2061 and the outer arm 2062, there is a key component, the second locking bolt 2063, for fixing and adjusting. When the user needs to adjust the overall length of the extension arm assembly 206, they can simply loosen the second locking bolt 2063, allowing the inner arm 2061 to freely slide within the outer arm 2062. The user can then stretch or contract the inner arm 2061 to the desired length according to actual needs. When the desired length is reached, the second locking bolt 2063 is tightened again to ensure that the extension arm assembly 206 maintains a stable length during use, providing reliable support for the corner clamping piece 207. This design not only meets the diverse length requirements of the extension arm assembly 206 for different size carton 1 bottom reinforcement, but also ensures that the extension arm assembly 206 maintains a stable structure during handling and transportation, effectively enhancing the protection effect on the bottom of the carton 1.
[0034] A layer of rubber pad is firmly attached to the inside of the corner clamping piece 207, which can effectively buffer the shock and impact force generated during handling or transportation when it comes into contact with the corners of the carton 1 bottom. This makes the entire reinforcing structure 2 play a more outstanding role in ensuring the safe transportation of the carton 1.
[0035] The elastic pull tape 209 in the embodiment is made of elastic material with stretchability, which is usually made of high-strength rubber-based composite material or special elastic fiber blend, and can be stretched according to the adjustment of the reinforcing structure 2. The two ends of the elastic pull tape 209 are respectively equipped with specially designed metal hooks, which can be easily and firmly hung on the corner piece 207. The detachable connection mode realized by the hooks can quickly replace the elastic pull tape 209 when it is damaged, thereby reducing the maintenance cost and time cost.
[0036] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.
[0037] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.
Claims
1. A carton bottom reinforcing structure comprising a carton (1), characterized in that: The paper box (1) is provided with a reinforcing structure (2) for protecting the bottom of the paper box (1); The reinforcing structure (2) comprises a supporting frame (201), an adjusting bottom rod (202) is arranged in the cavity of the supporting frame (201), two groups of adjusting sleeve assemblies (203) are arranged on the adjusting bottom rod (202) in a sliding manner, the adjusting sleeve assemblies (203) and the adjusting bottom rod (202) are matched by a locking wrench (204), swing bottom pieces (205) are arranged on the two groups of adjusting sleeve assemblies (203), two groups of outer extension arm assemblies (206) are rotatably arranged on the swing bottom pieces (205), corner clamping pieces (207) are rotatably arranged at the ends of the outer extension arm assemblies (206), the corner clamping pieces (207) and the outer extension arm assemblies (206) are matched by first locking bolts (208), and elastic pull belts (209) are arranged between two groups of opposite corner clamping pieces (207).
2. A carton base reinforcing structure according to claim 1 wherein: The supporting frame (201) is a rectangular frame structure, and reinforcing rib plates are arranged at four corners of the inner wall of the supporting frame (201).
3. A carton base reinforcing structure according to claim 2 wherein: A lifting handle (2010) is arranged on each end side wall of the supporting frame (201).
4. A carton base reinforcing structure according to claim 3 wherein: A scale mark is arranged on the side wall of the adjusting bottom rod (202), and the adjusting sleeve assemblies (203) can be accurately adjusted on the adjusting bottom rod (202) by the scale mark.
5. A carton base reinforcing structure according to claim 4 wherein: The outer extension arm assembly (206) comprises an inner arm (2061) and an outer arm (2062) which are sleeved with each other, and the inner arm (2061) and the outer arm (2062) are matched by a second locking bolt (2063).
6. A carton base reinforcing structure according to claim 5 wherein: A rubber pad is arranged on the inner side of the corner clamping piece (207).
7. A carton base reinforcing structure according to claim 6 wherein: The elastic pull belt (209) is made of a stretchable elastic material, and the two ends of the elastic pull belt (209) are detachably connected to the corresponding corner clamping pieces (207) by hooks.