An adjustable carton corner propping device
By designing an adjustable carton support device, and utilizing a detachable support frame and snap-fit structure, the problem of deformation and damage to cartons during stacking and transportation is solved, achieving stable support and firm fixation, and adapting to the needs of different carton sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN HUISHENGCHUANG PACKAGING CO LTD
- Filing Date
- 2025-03-21
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional cardboard boxes are prone to deformation during stacking and transportation, and lack cushioning devices, leading to product damage. Furthermore, existing devices cannot be adjusted according to the size of the cardboard boxes, resulting in significant limitations in their use.
An adjustable carton support device was designed. Through a detachable support frame and snap-fit structure, combined with telescopic springs and anti-slip rubber, it can achieve stable support and firm fixation for cartons of different sizes.
It allows for flexible adjustment based on the size of the cardboard box, improving support stability and sturdiness, reducing pressure during shaking, enhancing protection, and preventing damage to the cardboard box and its contents.
Smart Images

Figure CN224278239U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of carton support devices, and specifically relates to an adjustable carton support angle device. Background Technology
[0002] Traditional cardboard boxes are simply rectangular boxes, which cannot be stacked and transported in large quantities after packaging. Ordinary cardboard boxes do not have sufficient compressive strength and are easily deformed, which can damage the products inside. Furthermore, when the cardboard box is subjected to a certain amount of impact, the force will be directly applied to the box without any cushioning device to reduce the impact. This will not only damage the cardboard box itself but also the items inside, causing serious losses.
[0003] A search revealed that Chinese Patent Publication No. CN207712471U, authorized on August 10, 2018, discloses a support device for preventing deformation of cardboard boxes. The device includes uprights and a pressure-resistant plate, with the pressure-resistant plate located between the uprights. The pressure-resistant plate comprises a reinforcing plate and a honeycomb plate, with the honeycomb plate located on one side of the reinforcing plate. A spring is provided between the reinforcing plate and the honeycomb plate. The reinforcing plate is located on one side of the inner wall of the uprights and is fixedly connected. A sliding groove is provided on the other side of the inner wall of the uprights. This invention, through the installed pressure-resistant plate, effectively reduces the damage to the cardboard box caused by impact, improving the cardboard box's resistance to deformation. The installed uprights provide support for the box body. When cardboard boxes are stacked, pressure is applied to the uprights at the four corners of the box, thus preventing deformation and providing all-around protection. The installed reinforcing plate and V-shaped plate further enhance the structural strength of the cardboard box.
[0004] However, the device still has the following drawbacks: Although the above embodiments improve compression resistance, have a simple structure, and are suitable for mass production, the device cannot be adjusted according to the size of the carton, making it inconvenient to adapt to cartons of different sizes, and its use remains limited. Utility Model Content
[0005] To address the aforementioned problems, this utility model provides an adjustable carton support device, comprising two sets of first upper support frames, two sets of second upper support frames on one side of the two sets of first upper support frames, two sets of first lower support frames below the two sets of first upper support frames, two sets of second lower support frames below the two sets of first upper support frames, a set of connecting rods at the bottom of each of the two sets of first upper support frames and the two sets of second upper support frames, and a set of first slots at one end of each of the two sets of second upper support frames.
[0006] One end of each of the two sets of first upper support frames is threadedly connected to a set of first locking rods. One end of each of the two sets of second lower support frames is provided with a set of second locking slots. One end of each of the two sets of first lower support frames is threadedly connected to a set of second locking rods. One end of each of the two sets of first locking rods, the two sets of second locking rods, and several sets of adjusting crossbars is provided with a set of rectangular support blocks. One side wall of each set of rectangular support blocks is provided with a set of telescopic springs. The inner walls of the two sets of first locking slots and the two sets of second locking slots are provided with anti-slip rubber.
[0007] Furthermore, both sets of the first upper support frames are arranged in an L-shape, and the two sets of the first upper support frames are detachably connected. The two sets of the second upper support frames are arranged symmetrically with the two sets of the first upper support frames, and the two sets of the first upper support frames and the two sets of the second upper support frames form a "U"-shaped structure.
[0008] Furthermore, the two sets of first lower support frames and the two sets of first upper support frames are identical in shape and size, and the two sets of second lower support frames and the two sets of second upper support frames are identical in shape and size. The two sets of connecting rods are located at the bottom corners of the two sets of first upper support frames.
[0009] Furthermore, each of the two sets of first upper support frames has several sets of first snap-fit grooves on one side of its inner wall, and each of the two sets of second upper support frames has several sets of second snap-fit grooves on one side of its inner wall. Each of the two sets of first upper support frames has several sets of support crossbars on one side.
[0010] Furthermore, the several sets of first locking slots and several sets of second locking slots are all equally spaced, and the two ends of the several sets of supporting crossbars are respectively movably locked with the several sets of first locking slots and second locking slots.
[0011] Furthermore, each set of first slots is movably engaged with a set of first connecting rods, and each set of second connecting rods is movably engaged with a set of second slots. An adjusting crossbar is provided at the connection points of the two sets of first upper support frames, the two sets of second upper support frames, the two sets of first lower support frames, and the two sets of second lower support frames.
[0012] Furthermore, each set of connecting rods has a set of adjusting vertical rods at both ends, the two sets of first upper support frames are connected by two sets of connecting rods, and each set of adjusting vertical rods is movably engaged with the surface of one or two sets of first upper support frames.
[0013] Furthermore, each set of rectangular support blocks is detachably installed, and each set of rectangular support blocks has a set of fixed connecting blocks at one end, and each set of fixed connecting blocks is elastically connected to the other end of a set of telescopic springs.
[0014] The beneficial effects of this utility model are:
[0015] 1. Each of the two sets of second upper support frames has a first slot at one end, and a first locking rod is threadedly connected to one end of each of the two sets of first upper support frames. Each first slot is movably locked to a first locking rod. Each of the two sets of second lower support frames has a second slot at one end, and a second locking rod is threadedly connected to one end of each of the two sets of first lower support frames. Each second locking rod is movably locked to a second slot. An adjusting crossbar is provided at the connection points of the two sets of first upper support frames, the two sets of second upper support frames, the two sets of first lower support frames, and the two sets of second lower support frames. This facilitates disassembly and installation while allowing for adjustment according to different sizes of cartons.
[0016] 2. Several sets of first locking slots are provided on one side of the inner wall of each of the two sets of first upper support frames, and several sets of second locking slots are provided on one side of each of the two sets of second upper support frames. Several sets of support crossbars are provided on one side of each of the two sets of first upper support frames. The two ends of the support crossbars are respectively engaged with the first and second locking slots. This improves the stability and firmness of the device when supporting cartons. Each set of rectangular support blocks has a fixed connecting block at one end. Each fixed connecting block is elastically connected to the other end of a set of telescopic springs. This reduces the pressure generated during shaking and improves the protective effect of the device. The inner walls of the two sets of first and second locking slots are provided with anti-slip rubber, which improves the installation firmness of the device and enhances its protective function.
[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 A schematic diagram of the structure according to an embodiment of the present utility model is shown;
[0020] Figure 2 A schematic diagram of the first slot structure according to an embodiment of the present invention is shown;
[0021] Figure 3 A schematic diagram of the first upper support frame structure according to an embodiment of the present utility model is shown;
[0022] Figure 4 A cross-sectional schematic diagram of the first slot according to an embodiment of the present invention is shown.
[0023] In the diagram: 1. First upper support frame; 2. Second upper support frame; 3. First lower support frame; 4. Second lower support frame; 5. Connecting rod; 6. First locking slot; 7. Second locking slot; 8. Supporting crossbar; 9. First locking slot; 10. First locking rod; 11. Second locking slot; 12. Second locking rod; 13. Adjusting crossbar; 14. Adjusting vertical rod; 15. Fixed connecting block; 16. Telescopic spring; 17. Rectangular support block; 18. Anti-slip rubber. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0025] This utility model embodiment provides an adjustable carton support device, including two sets of first upper support frames 1; for example, such as Figure 1-4 As shown.
[0026] Both sets of first upper support frames 1 are arranged in an L-shape and are detachably connected. Two sets of second upper support frames 2 are provided on one side of the two sets of first upper support frames 1. The two sets of second upper support frames 2 are arranged symmetrically with the two sets of first upper support frames 1. The two sets of first upper support frames 1 and the two sets of second upper support frames 2 form a "U" shape. Two sets of first lower support frames 3 are provided below the two sets of first upper support frames 1.
[0027] Below the two sets of first upper support frames 1, there are two sets of second lower support frames 4. The two sets of first lower support frames 3 are the same in shape and size as the two sets of first upper support frames 1. The two sets of second lower support frames 4 are the same in shape and size as the two sets of second upper support frames 2. At the bottom of the two sets of first upper support frames 1 and the two sets of second upper support frames 2, there is a set of connecting support rods 5. The two sets of connecting support rods 5 are respectively located at the bottom corners of the two sets of first upper support frames 1.
[0028] Each of the two sets of first upper support frames 1 has several sets of first snap-fit grooves 6 on one side of its inner wall, and each of the two sets of second upper support frames 2 has several sets of second snap-fit grooves 7 on one side of its inner wall. The sets of first snap-fit grooves 6 and the sets of second snap-fit grooves 7 are distributed at equal intervals. Each of the two sets of first upper support frames 1 has several sets of support crossbars 8 on one side. The two ends of the sets of support crossbars 8 are respectively movably snapped into the sets of first snap-fit grooves 6 and second snap-fit grooves 7.
[0029] Each of the two sets of second upper support frames 2 has a set of first slots 9 at one end, and each of the two sets of first upper support frames 1 is threadedly connected to a set of first locking rods 10. Each set of first slots 9 is movably locked to a set of first locking rods 10. Each of the two sets of second lower support frames 4 has a set of second slots 11 at one end, and each of the two sets of first lower support frames 3 is threadedly connected to a set of second locking rods 12. Each set of second locking rods 12 is movably locked to a set of second slots 11.
[0030] Each of the two sets of first upper support frames 1, two sets of second upper support frames 2, two sets of first lower support frames 3, and two sets of second lower support frames 4 is provided with a set of adjusting crossbars 13. Each set of connecting support rods 5 is provided with a set of adjusting vertical rods 14 at both ends. The two sets of first upper support frames 1 are connected by two sets of connecting support rods 5, and each set of adjusting vertical rods 14 is movably engaged with the surface of one set of two sets of first upper support frames 1.
[0031] Each of the two sets of first locking rods 10, the two sets of second locking rods 12, and several sets of adjusting crossbars 13 is provided with a set of rectangular support blocks 17 at one end. Each set of rectangular support blocks 17 is detachably installed. Each set of rectangular support blocks 17 is provided with a set of telescopic springs 16 on one side wall. Each set of rectangular support blocks 17 is provided with a set of fixed connecting blocks 15 at one end. Each set of fixed connecting blocks 15 is elastically connected to the other end of a set of telescopic springs 16. The inner walls of the two sets of first locking slots 9 and the two sets of second locking slots 11 are provided with anti-slip rubber 18.
[0032] Specifically, each of the two sets of second upper support frames 2 has a first slot 9 at one end, and each of the two sets of first upper support frames 1 is threadedly connected to a first locking rod 10. Each set of first slots 9 is movably locked to a set of first locking rods 10. Each of the two sets of second lower support frames 4 has a second slot 11 at one end, and each of the two sets of first lower support frames 3 is threadedly connected to a set of second locking rods 12. Each set of second locking rods 12 is movably locked to a set of second slots 11. Each of the two sets of first upper support frames 1, two sets of second upper support frames 2, two sets of first lower support frames 3, and two sets of second lower support frames 4 has an adjusting crossbar 13 at the connection point, which facilitates disassembly and installation and can be adjusted according to different sizes of cartons.
[0033] Several sets of first snap-fit grooves 6 are provided on one side of the inner wall of each of the two sets of first upper support frames 1, and several sets of second snap-fit grooves 7 are provided on one side of each of the two sets of second upper support frames 2. Several sets of support crossbars 8 are provided on one side of each of the two sets of first upper support frames 1. The two ends of the several sets of support crossbars 8 are respectively movably snapped into the several sets of first snap-fit grooves 6 and second snap-fit grooves 7, which can improve the stability and firmness of the device when supporting the carton. Furthermore, a set of fixed connecting blocks 15 is provided at one end of each set of rectangular support blocks 17. The fixed connecting blocks 15 are elastically connected to the other end of a set of telescopic springs 16, which can reduce the pressure generated during shaking and improve the protective effect of the device. The inner walls of the two sets of first snap-fit grooves 9 and the two sets of second snap-fit grooves 11 are provided with anti-slip rubber 18, which improves the installation firmness of the device.
[0034] The working principle of the adjustable carton support device proposed in this embodiment is as follows:
[0035] Each of the two sets of second upper support frames 2 has a first slot 9 at one end, and each of the two sets of first upper support frames 1 is threadedly connected to a first locking rod 10. Each first slot 9 is movably locked to a first locking rod 10. Each of the two sets of second lower support frames 4 has a second slot 11 at one end, and each of the two sets of first lower support frames 3 is threadedly connected to a second locking rod 12. Each second locking rod 12 is movably locked to a second slot 11. Each of the two sets of first upper support frames 1, two sets of second upper support frames 2, two sets of first lower support frames 3, and two sets of second lower support frames 4 has an adjusting crossbar 13 at the connection point, which facilitates disassembly and installation and can be adjusted according to different sizes of cartons.
[0036] Several sets of first locking grooves 6 are provided on one side of the inner wall of each of the two sets of first upper support frames 1, and several sets of second locking grooves 7 are provided on one side of each of the two sets of second upper support frames 2. Several sets of support crossbars 8 are provided on one side of each of the two sets of first upper support frames 1. The two ends of the several sets of support crossbars 8 are respectively movably locked with the several sets of first locking grooves 6 and second locking grooves 7, which can improve the stability and firmness of the device when supporting the carton. Furthermore, a set of fixed connecting blocks 15 is provided at one end of each set of rectangular support blocks 17. Each set of fixed connecting blocks 15 is elastically connected to the other end of a set of telescopic springs 16, which can reduce the pressure generated during shaking and improve the protective effect of the device. The inner walls of the two sets of first locking grooves 9 and the two sets of second locking grooves 11 are provided with anti-slip rubber 18 to improve the installation firmness of the device.
[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. An adjustable carton corner propping device comprising two sets of first upper support frames (1), characterized in that: Two sets of second upper support frames (2) are provided on one side of the two sets of first upper support frames (1), two sets of first lower support frames (3) are provided below the two sets of first upper support frames (1), two sets of second lower support frames (4) are provided below the two sets of first upper support frames (1), a set of connecting rods (5) are provided at the bottom of the two sets of first upper support frames (1) and the two sets of second upper support frames (2), and a set of first slots (9) are provided at one end of the two sets of second upper support frames (2). One end of each of the two sets of first upper support frames (1) is threaded with a set of first locking rods (10), one end of each of the two sets of second lower support frames (4) is provided with a set of second locking slots (11), one end of each of the two sets of first lower support frames (3) is threaded with a set of second locking rods (12), one end of each of the two sets of first locking rods (10), the two sets of second locking rods (12) and several sets of adjusting crossbars (13) is provided with a set of rectangular support blocks (17), one side wall of each set of rectangular support blocks (17) is provided with a set of telescopic springs (16), and the inner walls of the two sets of first locking slots (9) and the two sets of second locking slots (11) are provided with anti-slip rubber (18).
2. The adjustable carton corner brace device of claim 1, wherein: Both sets of first upper support frames (1) are arranged in an L-shape, and the two sets of first upper support frames (1) are detachably connected. The two sets of second upper support frames (2) are arranged symmetrically with the two sets of first upper support frames (1), and the two sets of first upper support frames (1) and the two sets of second upper support frames (2) are arranged in a "U" shape.
3. The adjustable carton corner brace device of claim 2, wherein: The two sets of first lower support frames (3) and the two sets of first upper support frames (1) are the same in shape and size. The two sets of second lower support frames (4) and the two sets of second upper support frames (2) are the same in shape and size. The two sets of connecting rods (5) are located at the bottom corners of the two sets of first upper support frames (1).
4. The adjustable carton support angle device according to claim 3, characterized in that: Several sets of first snap-fit grooves (6) are provided on one side of the inner wall of both sets of first upper support frames (1), several sets of second snap-fit grooves (7) are provided on one side of the inner wall of both sets of second upper support frames (2), and several sets of support crossbars (8) are provided on one side of both sets of first upper support frames (1).
5. The adjustable carton support angle device according to claim 4, characterized in that: Several sets of first locking slots (6) and several sets of second locking slots (7) are arranged at equal intervals, and the two ends of several sets of support crossbars (8) are respectively movably locked with several sets of first locking slots (6) and second locking slots (7).
6. The adjustable carton support angle device according to claim 1, characterized in that: Each group of first slots (9) is movably engaged with a group of first locking rods (10), and each group of second locking rods (12) is movably engaged with a group of second slots (11). A set of adjusting crossbars (13) is provided at the connection points of the two groups of first upper support frames (1), the two groups of second upper support frames (2), the two groups of first lower support frames (3) and the two groups of second lower support frames (4).
7. The adjustable carton support angle device according to claim 2, characterized in that: Each set of connecting rods (5) has a set of adjusting vertical rods (14) at both ends. The two sets of first upper support frames (1) are connected by two sets of connecting rods (5), and each set of adjusting vertical rods (14) is movably engaged with the surface of one set of two sets of first upper support frames (1).
8. The adjustable carton support angle device according to claim 1, characterized in that: Each set of rectangular support blocks (17) is detachably installed. Each set of rectangular support blocks (17) has a set of fixed connecting blocks (15) at one end. Each set of fixed connecting blocks (15) is elastically connected to the other end of a set of telescopic springs (16).