Reinforced double-layer buffer angle bead

Abstract

The utility model discloses a reinforced double-layer buffering angle bead, and relates to the technical field of packaging products. Comprising a corner protector body, the corner protector body comprises an inner side wall, an outer side wall and a cavity formed between the inner side wall and the outer side wall, the inner side wall and the outer side wall are each provided with a plurality of criss-cross grooves, the grooves are segmented and obliquely deepened towards the cavity in an arch arc shape, and the intersection point of every two adjacent grooves is deepest sunken. And the intersection points of the grooves in the inner side wall and the outer side wall correspond to each other and are mutually connected to form supporting points. The plurality of arch-shaped grooves are connected together in the cavity to form a framework-like structure, a gap space can be formed to meet the requirement that gas can smoothly flow in the material pipe in the blow molding process, and the wall surfaces of the inner side wall and the outer side wall can be supported by a plurality of supporting points, so that the wall surfaces can be prevented from collapsing, and the service life of the material pipe is prolonged. The whole large-area wall surface is divided into a plurality of buffer units by the grooves, so that the strength of the wall surface is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of packaging product technology, specifically to a reinforced double-layer cushioning corner protector. Background Technology

[0002] Currently, most household appliances, furniture, cabinets, and other products suitable for protection with foam or plastic corner protectors use foam or plastic corner protectors to prevent damage during transportation and handling. However, both foam and plastic corner protectors have significant drawbacks in their use.

[0003] Foam corner protectors are not environmentally friendly. Although they have good cushioning properties, their strength is limited and they are brittle. When protecting slightly heavier products, they are prone to breakage and loss of protective function. Therefore, foam protection of very heavy products has certain limitations. Foam is an extremely flammable substance and poses a fire hazard.

[0004] Ordinary plastic corner protectors are single-walled and lack cushioning. Heavy plastic corner protectors are expensive, greatly increasing packaging costs, and their performance is unsatisfactory. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: a reinforced double-layer buffer corner protector, comprising a corner protector body, wherein the corner protector body comprises an inner sidewall, an outer sidewall, and a cavity disposed between the inner sidewall and the outer sidewall;

[0006] Both the inner and outer sidewalls are provided with several crisscrossing grooves.

[0007] As a preferred embodiment of the present invention, the groove is segmented and deepened in an arched shape towards the cavity.

[0008] As a preferred embodiment of the present invention, the deepest depression is located at the intersection of two adjacent groove segments.

[0009] As a preferred embodiment of the present invention, the grooves on the inner and outer walls intersect at corresponding positions and are connected to each other to form support points.

[0010] As a preferred embodiment of the present invention, the crisscrossing grooves divide the inner and outer sidewalls into several buffer units.

[0011] As a preferred embodiment of the present invention, a plurality of crisscrossing grooves are connected together inside the cavity to form a skeleton-like structure.

[0012] As a preferred embodiment of the present invention, the groove is segmented and deepened by tilting towards the cavity direction.

[0013] As a preferred embodiment of the present invention, the grooves converge at the top of the corner protector body to form a three-vertex secondary buffer reinforcement structure with edge reinforcement.

[0014] Compared with the prior art, the present invention provides a reinforced double-layer buffer corner protector, which has the following beneficial effects:

[0015] 1. This reinforced double-layer buffer corner protector features several arched grooves connected together inside the cavity to form a skeleton-like structure. This creates a gap space that meets the requirements of the blow molding process, allowing gas to flow smoothly within the material tube. Numerous support points support the inner and outer walls, preventing wall collapse. The grooves divide the large wall area into numerous buffer units, greatly increasing wall strength.

[0016] 2. This reinforced double-layer buffer corner protector features a series of intersecting grooves to achieve the required strength while significantly reducing wall thickness, thereby greatly reducing material usage, weight, and material and transportation costs. Compared to the material accumulation at the intersection of the grooves, the buffer unit has a more uniform wall thickness and a softer wall surface, providing excellent product protection. When used in conjunction with the grooves, it achieves both corner protection strength and a soft wall surface. It is a scientific, simplified, and ingenious structure with broad application prospects. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a reinforced double-layer buffer corner protector proposed in this invention;

[0018] Figure 2 This is a schematic diagram of the inner wall structure of a reinforced double-layer buffer corner protector proposed in this invention;

[0019] Figure 3 This is a schematic diagram of the outer wall structure of a reinforced double-layer buffer corner protector proposed in this invention;

[0020] Figure 4 This is a cross-sectional view of a cavity structure for a reinforced double-layer buffer corner protector proposed in this invention;

[0021] Figure 5 This is a schematic diagram of a reinforcement method for a reinforced double-layer buffer corner protector proposed in this invention.

[0022] In the diagram: 1. Corner protector body; 11. Inner wall; 12. Outer wall; 13. Cavity; 14. Groove; 15. Support point; 16. Buffer unit; 17. Skeleton-like structure. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figure 1-5 A reinforced double-layer buffer corner protector includes a corner protector body 1. The corner protector body 1 includes an inner wall 11, an outer wall 12, and a cavity 13 disposed between the inner wall 11 and the outer wall 12. The inner wall 11 and the outer wall 12 are provided with a plurality of crisscrossing grooves 14, which form a groove network. The groove network increases the wall stiffness, and at the same time, the groove network dissipates energy through geometric deformation. The cavity 13 between the inner and outer walls 12 forms a double-layer buffer structure, which absorbs impact energy using an air layer, provides primary buffering, and the grooves 14 disperse stress. Compared with the traditional single-layer corner protector, the impact resistance is greatly improved.

[0025] As a specific technical solution in this embodiment, the groove 14 is segmented and deepened in an arched shape towards the cavity 13, and the groove 14 is segmented and deepened at an incline towards the cavity 13.

[0026] In this embodiment, the arched groove 14 conforms to the natural deformation path of the material under pressure, similar to the mechanical transmission principle of an arch bridge. The impact force is transmitted to the support point 15 along the curvature of the groove 14, which greatly improves the local compressive strength and avoids wall cracking caused by stress concentration. The corner protector body 1 is made of tough material, preferably plastic.

[0027] As a specific technical solution in this embodiment, the deepest recess is at the intersection of two adjacent grooves 14, and the intersection of the grooves 14 on the inner wall 11 and the outer wall 12 corresponds to each other and is connected to form a support point 15.

[0028] In this implementation scheme, the intersection point has the greatest depth and is connected to the opposite sidewall to form a distributed micro support point network 15. The material stacking at the support point 15 enhances the anti-collapse ability. The support point 15 has a high density, which effectively improves the anti-collapse ability of the inner sidewall 11 and the outer sidewall 12.

[0029] As a specific technical solution in this embodiment, several crisscrossing grooves 14 divide the inner sidewall 11 and outer sidewall 12 into several buffer units 16.

[0030] In this embodiment, the groove 14 divides the wall into honeycomb units, following the principle of load dispersion of composite materials. Each unit independently bears the local load, avoiding the overall failure of a large area of ​​the wall.

[0031] As a specific technical solution in this embodiment, the cross-section of the groove 14 is V-shaped, U-shaped or arc-shaped.

[0032] In this embodiment, the V-groove is suitable for stress release of high-hardness materials and optimizes the stress release path. The U-shaped and arc-shaped grooves match the deformation characteristics of flexible materials. The V-groove has the best compressive strength, and the U-groove has the best resilience. The V-groove is preferred as the cross-sectional shape of the groove 14.

[0033] As a specific technical solution in this embodiment, several intersecting grooves 14 are connected together inside the cavity 13 to form a skeleton-like structure 17.

[0034] In this implementation scheme, the skeleton-like structure 17 is combined with the principles of bionics to form a three-dimensional mesh support frame, thereby optimizing the force transmission path.

[0035] As a specific technical solution in this embodiment, the grooves 14 converge at the top of the corner protector body 1 to form a three-vertex secondary buffer reinforcement structure with edge reinforcement.

[0036] In this embodiment, after the corner protector body 1 is blow-molded, the cavity 13 is in a sealed state. The sealed cavity 13 maintains the internal air pressure buffering effect, improves the product's buffering capacity, and the edge-reinforced three-vertex secondary buffering reinforcement structure further ensures the overall strength and buffering capacity of the product.

[0037] A method for reinforcing a reinforced double-layer buffer corner protector includes the following steps:

[0038] S1. The corner protector body is blow molded. The outer side wall 12 and inner side wall 11 of the corner protector body 1 are provided with crisscrossing grooves 14. The grooves 14 are deepened in an arched shape along the wall surface towards the cavity 13, so that the cavity forms a gradually buffered structure with different distances. Several crisscrossing grooves 14 are connected together inside the cavity 13 to form a skeleton-like structure 17.

[0039] S2, skeletal cavity reinforcement, by setting dense crisscrossing grooves 14 on the inner sidewall 11 and outer sidewall 12 of the corner protector body 1, the large area of ​​the wall surface is divided into multiple independent reinforcing and buffering units 16.

[0040] S3. Strengthening the support between the inner and outer walls: The grooves 14 on the inner wall 11 and the outer wall 12 are located at the intersection points and are connected to each other to form support points 15. The support points 15 at the intersection of the grooves 14 strengthen the support of the inner and outer walls and prevent the inner and outer walls from collapsing.

[0041] S4. The top corner is divided and layered for reinforcement. The grooves 14 on the outer side wall 12 converge at the top to form a three-vertex secondary buffer reinforcement structure with edge reinforcement. This transforms the original single-vertex large-area wall into a multi-edge reinforced three-vertex buffer structure with first buffering and then convergence of the edge vertex buffer.

[0042] As a specific technical solution in this embodiment, in S3, when the groove 14 is deepened in an arched shape along the wall surface towards the cavity 13, the intersection points of the grooves 14 on the inner wall 11 and the outer wall 12 can be selected as non-connected, as long as the predetermined depth is reached, there is no need to connect them.

[0043] In this embodiment, when the groove 14 is segmented and deepened in an arched shape along the wall surface towards the cavity 13, the longitudinal and transverse intersection points of the grooves 14 on the inner wall 11 and the outer wall 12 can be connected together to form support points 15. Alternatively, a non-connection scheme can be used, where the predetermined depth is reached without connection. However, the longitudinal and transverse intersection points of the grooves 14 on the inner wall 11 and the outer wall 12 must correspond one-to-one to still serve as a support for the wall surface.

[0044] In summary, this reinforced double-layer buffer corner protector has several arched grooves 14 connected together inside the cavity 13 to form a skeleton-like structure 17, which can create gaps to meet the requirements of the blow molding process, allowing gas to flow smoothly in the material tube. Numerous support points 15 can support the inner wall 11 and the outer wall 12, thereby preventing wall collapse. The grooves 14 divide the entire large wall area into numerous buffer units 16, thereby greatly increasing the wall strength.

[0045] This reinforced double-layer buffer corner protector features a design with several intersecting grooves 14, achieving the required strength while significantly reducing wall thickness, thereby greatly reducing material usage, weight, and material and transportation costs. Compared to the material accumulation at the intersection of the grooves 14, the buffer unit 16 has a more uniform wall thickness and a softer wall surface, effectively protecting the product. When used in conjunction with the grooves 14, it achieves both corner protection strength and a soft wall surface, making it a scientific, concise, and ingenious structure with broad application prospects.

[0046] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reinforced double-layer buffer corner protector, comprising a corner protector body (1), characterized in that: The corner protector body (1) includes an inner sidewall (11), an outer sidewall (12), and a cavity (13) disposed between the inner sidewall (11) and the outer sidewall (12); The inner wall (11) and the outer wall (12) are each provided with a number of crisscrossing grooves (14).

2. The reinforced double-layer buffer corner protector according to claim 1, characterized in that: The groove (14) is segmented and deepens in an arched shape towards the cavity (13).

3. The reinforced double-layer buffer corner protector according to claim 1, characterized in that: The deepest depression is at the intersection of two adjacent grooves (14).

4. The reinforced double-layer buffer corner protector according to claim 1, characterized in that: The grooves (14) on the inner wall (11) and the outer wall (12) intersect at corresponding positions and are connected to each other to form a support point (15).

5. A reinforced double-layer buffer corner protector according to claim 1, characterized in that: Several crisscrossing grooves (14) divide the inner wall (11) and outer wall (12) into several buffer units (16).

6. A reinforced double-layer buffer corner protector according to claim 1, characterized in that: Several intersecting grooves (14) are connected together inside the cavity (13) to form a skeleton-like structure (17).

7. A reinforced double-layer buffer corner protector according to claim 1, characterized in that: The groove (14) is segmented and deepened by tilting towards the cavity (13).

8. A reinforced double-layer buffer corner protector according to claim 1, characterized in that: The grooves (14) converge at the top of the corner protector body (1) to form a secondary buffer reinforcement structure with edge reinforcement.

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