Internal reinforcement type heavy carton
By introducing telescopic components and eccentric wheel structures into heavy-duty cardboard boxes, the problem of the non-adjustable reinforcement frame of traditional heavy-duty cardboard boxes is solved, enabling flexible adjustment of the frame to adapt to different size requirements and improving ease of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional internally reinforced heavy-duty cardboard boxes have fixed and non-adjustable reinforcing frame dimensions, making them unsuitable for different sizes of cardboard boxes and limiting their scope of use and convenience.
The structure employs a telescopic component, including a three-pronged bracket, telescopic rod, and eccentric wheel. The size of the reinforced frame is adjusted by rotating the eccentric wheel and moving the compression block. The frame is fixed and adjusted by utilizing the eccentric design of the eccentric wheel and the cooperation of the limiting column.
The adjustable reinforced frame adapts to different carton sizes, enhancing its flexibility and convenience.
Smart Images

Figure CN224029500U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to heavy carton field especially relates to inside reinforcing type heavy carton. BACKGROUND
[0002] Heavy carton is a kind of packing carton with high strength, high bearing capacity, mainly used for packing the goods with larger weight, larger volume or higher packing strength requirement, with high strength, good cushioning performance, customizable and environmental protection energy saving etc., inside reinforcing type heavy carton is developed on the basis of traditional carton, aims at solving the deficiency of ordinary carton in bearing heavy object and resisting external force impact.
[0003] At present, the traditional inside reinforcing type heavy carton has obvious defects, its inside reinforcing frame size is fixed, lacks adjustability, once facing the heavy carton with unmatched size, the reinforcing frame cannot be adapted to install, directly leads to its unable to put into use, greatly limits the use range and convenience; UTILITY MODEL CONTENTS
[0004] In order to make up for the above insufficient, the utility model provides an inside reinforcing type heavy carton, aims at improving the problem that inside reinforcing frame in prior art cannot be adjusted in size according to carton.
[0005] In order to realize the above purpose, the utility model adopts the following technical scheme:
[0006] An inside reinforcing type heavy carton, including outer box, the outer box top is provided with carton cover, the outer box is provided with inner box in, the inner box is provided with telescopic assembly in, the telescopic assembly includes multiple three-pronged supports arranged in the inner box, the three-pronged support outer side is fixedly connected with rubber pad, the three-pronged support side away from the rubber pad is all installed with fixed component, and the telescopic rod is slidably connected between adjacent two three-pronged supports.
[0007] The telescopic assembly includes multiple three-pronged supports arranged in the inner box, the three-pronged support outer side is fixedly connected with rubber pad, the three-pronged support side away from the rubber pad is all installed with fixed component, and the telescopic rod is slidably connected between adjacent two three-pronged supports.
[0008] As a further description of the above technical scheme:
[0009] The fixed component includes the shell fixedly connected on the three-pronged support outer side, the eccentric wheel is rotatably connected in the shell middle part, the eccentric wheel side close to three-pronged support is provided with extrusion block, the extrusion block top two sides are all fixedly connected with limit post, and the two limit posts are slidably connected in the shell interior.
[0010] As a further description of the above technical scheme:
[0011] The eccentric wheel outer side is fixedly connected with the push piece, the shell outer side is fixedly connected with the shackle, and the shackle is engaged with the push piece.
[0012] As a further description of the above technical solutions:
[0013] The extrusion block is slidingly connected inside the shell;
[0014] As a further description of the above technical solutions:
[0015] The extrusion block penetrates the three-pronged support outside;
[0016] As a further description of the above technical solutions:
[0017] The extrusion block is interference fit with the telescopic rod;
[0018] As a further description of the above technical solutions:
[0019] The inner box is attached to the carton cover;
[0020] As a further description of the above technical solutions:
[0021] The rubber pad is attached to the inner box, and the rubber pad is attached to the carton cover.
[0022] The utility model has the following beneficial effects:
[0023] 1、The utility model discloses a telescopic assembly is set up, when needing to adjust the size of the internal reinforcing frame, moves telescopic rod, then adjusts the size of the internal reinforcing frame, and only when four telescopic rods in the same direction can move, size can be adjusted.
[0024] 2、The utility model discloses a telescopic assembly is set up, when needing to adjust the size of the internal reinforcing frame, moves telescopic rod, then adjusts the size of the internal reinforcing frame, and only when four telescopic rods in the same direction can move, size can be adjusted. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 A three-dimensional schematic view of an internal reinforcing type heavy carton is provided for the utility model;
[0026] Figure 2 An internal structure diagram of an outer box of an internal reinforcing type heavy carton is provided for the utility model;
[0027] Figure 3 A three-dimensional schematic view of a telescopic assembly of an internal reinforcing type heavy carton is provided for the utility model;
[0028] Figure 4A kind of internal reinforcement type heavy paper box's fixed assembly's three-dimensional schematic view is proposed in the utility model;
[0029] Figure 5 A kind of internal reinforcement type heavy paper box's shell's structure analysis diagram is proposed in the utility model.
[0030] Legend:
[0031] 1, outer box;2, inner box;3, shell;4, rubber pad;5, three-pronged support;6, telescopic rod;7, push piece;8, extrusion block;9, hook ring;10, eccentric wheel;11, limiting column;12, carton cover. Specific implementation
[0032] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model below, apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of protection of the utility model.
[0033] Refer to Figures 1-3 A kind of internal reinforcement type heavy paper box, including outer box 1, outer box 1 top is provided with carton cover 12, outer box 1 inside is provided with inner box 2, by setting up inner box 2, the transported goods can be better protected, when outer box 1 is damaged, inner box 2 can also protect the transported goods, to prevent being damaged, and also can be set between outer box 1 and inner box 2 buffer material or waterproof material etc., can better protect the transported goods, inner box 2 is provided with telescopic assembly inside, telescopic assembly is used to adjust the size of internal reinforcement frame;Telescopic assembly includes multiple three-pronged supports 5 arranged in inner box 2, three-pronged support 5 outer side is fixedly connected with rubber pad 4, rubber pad 4 can play the role of buffering, three-pronged support 5 side away from rubber pad 4 is equipped with fixed assembly, slidingly connected with telescopic rod 6 between adjacent two three-pronged supports 5, when needing to adjust size, telescopic rod 6 is moved, so that the distance between three-pronged support 5 is increased, then reach the effect of adjusting size, and only when the telescopic rod 6 in the same direction can be moved, the length in one direction can be adjusted;
[0034] Refer to Figure 4 And Figure 5The fixing assembly comprises an outer shell 3 fixedly connected to the outside of the three-pronged support 5, an eccentric wheel 10 rotatably connected to the middle of the outer shell 3, and an extrusion block 8 arranged on the side of the eccentric wheel 10 close to the three-pronged support 5. Since the center of rotation of the eccentric wheel 10 is not coincident with the geometric center, when the eccentric wheel 10 rotates towards the extrusion block 8, the extrusion block 8 is extruded, and the fixing effect is achieved. When the eccentric wheel 10 rotates away from the extrusion block 8, the eccentric wheel 10 gradually moves away from the extrusion block 8, and the size of the internal reinforcing frame can be adjusted. The top of the extrusion block 8 is fixedly connected with two limiting columns 11, and the two limiting columns 11 are slidingly connected inside the outer shell 3. The limiting columns 11 are used to prevent the extrusion block 8 from being separated from the outer shell 3.
[0035] With reference to Figure 4 The outer side of the eccentric wheel 10 is fixedly connected with a push piece 7. The push piece 7 is moved to drive the eccentric wheel 10 to rotate. The outer side of the outer shell 3 is fixedly connected with a hook ring 9. The hook ring 9 is engaged with the push piece 7. When the push piece 7 is moved to the position of the hook ring 9, the telescopic assembly can be fixed.
[0036] With reference to Figure 4 and Figure 5 The extrusion block 8 is slidingly connected inside the outer shell 3. The size of the frame is adjusted by sliding the extrusion block 8 inside the outer shell 3.
[0037] With reference to Figure 4 The extrusion block 8 penetrates the three-pronged support 5 from the outside. In the process of sliding, the extrusion block 8 penetrates one end of the three-pronged support 5.
[0038] With reference to Figure 4 The extrusion block 8 is in interference fit with the telescopic rod 6. When the extrusion block 8 is fixed with the telescopic rod 6, the telescopic rod 6 cannot move. When the extrusion block 8 can slide with the telescopic rod 6, the telescopic rod 6 can move.
[0039] With reference to Figure 1 and Figure 2 The inner box 2 is attached to the carton cover 12. When the carton cover 12 is needed to cover the articles, the carton cover 12 is in contact with the inner box 2.
[0040] With reference to Figure 1 and Figure 2 Figure 1 Figure 2 The rubber pad 4 is attached to the inner box 2, and the rubber pad 4 is attached to the carton cover 12. The rubber pad 4 can prevent the articles from shaking during transportation and causing damage to the inner box 2, and avoids the direct contact between the internal reinforcing frame and the inner box 2.
[0041] Working principle: when the internal reinforcing frame size needs to be adjusted, the size can be adjusted by pulling the dial 7, because the geometric center of the eccentric wheel 10 does not coincide with the center of rotation, when the eccentric wheel 10 rotates, because of its "eccentric" design, the outer edge of the eccentric wheel 10 will exert force on the extrusion block 8 during rotation, and a limit post 11 is also arranged on the top of the extrusion block 8, the limit post 11 is connected with the shell 3 together, so that the extrusion block 8 can only move inside the shell 3, preventing it from moving in other directions. When the size of the reinforcing frame needs to be adjusted, move the dial 7 away from the hook ring 9, the dial 7 will drive the eccentric wheel 10 to rotate, at this time the eccentric wheel 10 no longer extrudes the extrusion block 8, so the telescopic rod 6 can slide, by moving the three-pronged bracket 5 to drive the telescopic rod 6 to move. However, only when the four telescopic rods 6 in the same direction can move, the length of this direction can be adjusted; when the dial 7 is moved towards the hook ring 9, the dial 7 will drive the eccentric wheel 10 to rotate, at this time the eccentric wheel 10 will push the extrusion block 8 to move towards the telescopic rod 6 during rotation due to its "eccentric" design. Because there is a small gap at the top of the dial 7, when the dial 7 is moved to the position of the hook ring 9, it can hook the dial 7, thereby achieving the locking effect.
[0042] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for the person skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.
Claims
1. An internally reinforced heavy-duty cardboard box, comprising an outer box (1), characterized in that: The outer box (1) is provided with a carton cover (12) on the top, and the outer box (1) is provided with an inner box (2) inside, and the inner box (2) is provided with a telescopic component inside; The telescopic assembly includes multiple three-pronged brackets (5) disposed inside the inner box (2). A rubber pad (4) is fixedly connected to the outside of the three-pronged bracket (5). A fixing component is installed on the side of the three-pronged bracket (5) away from the rubber pad (4). A telescopic rod (6) is slidably connected between two adjacent three-pronged brackets (5).
2. The internally reinforced heavy-duty cardboard box according to claim 1, characterized in that: The fixing assembly includes a housing (3) fixedly connected to the outside of the three-pronged bracket (5). An eccentric wheel (10) is rotatably connected to the middle of the housing (3). An extrusion block (8) is provided on the side of the eccentric wheel (10) near the three-pronged bracket (5). Limiting posts (11) are fixedly connected to both sides of the top of the extrusion block (8). Both limiting posts (11) are slidably connected inside the housing (3).
3. The internally reinforced heavy-duty cardboard box according to claim 2, characterized in that: A lever (7) is fixedly connected to the outside of the eccentric wheel (10), and a hook (9) is fixedly connected to the outside of the outer shell (3). The hook (9) engages with the lever (7).
4. A reinforced heavy-duty cardboard box according to claim 2, characterized in that: The extrusion block (8) is slidably connected inside the outer shell (3).
5. A reinforced heavy-duty cardboard box according to claim 2, characterized in that: The compression block (8) extends through the three-pronged bracket (5) on its outer side.
6. A reinforced heavy-duty cardboard box according to claim 2, characterized in that: The compression block (8) is interference-fitted with the telescopic rod (6).
7. A reinforced heavy-duty cardboard box according to claim 1, characterized in that: The inner box (2) is attached to the carton lid (12).
8. A reinforced heavy-duty cardboard box according to claim 1, characterized in that: The rubber pad (4) is attached to the inner box (2), and the rubber pad (4) is attached to the carton cover (12).