Reinforced double-layer buffer angle bead and reinforcing method thereof

Abstract

The invention discloses a reinforced double-layer buffer angle bead and a reinforcing method thereof, 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] The present invention relates to the technical field of packaging products, and particularly to a reinforced double-layer buffer corner protector and its reinforcement method. Background Art

[0002] At present, most products such as household appliances, furniture, cabinets, and other products suitable for protection by foam or plastic corner protectors on the market mostly use foam or plastic corner protectors for protection in order to avoid damage during transportation and handling. However, both foam corner protectors and plastic corner protectors have relatively serious defects in use.

[0003] Foam corner protectors are not environmentally friendly. Although they have good cushioning performance, their strength is limited and they are very brittle. When protecting slightly heavier products, they are prone to breakage and lose their protection function. Therefore, there are certain limitations in using foam to protect very heavy products. Foam is an extremely flammable substance and there is a fire hazard.

[0004] Ordinary plastic corner protectors are single-wall corner protectors without cushioning properties. Plastic corner protectors with a large gram weight are expensive, greatly increasing the packaging cost, and the use effect is not ideal. Summary of the Invention

[0005] To achieve the above object, the present invention provides the following technical solution: a reinforced double-layer buffer corner protector and its reinforcement method, including a corner protector body, the corner protector body includes an inner side wall, an outer side wall, and a cavity provided between the inner side wall and the outer side wall;

[0006] A number of vertically and horizontally intersecting grooves are provided on both the inner side wall and the outer side wall.

[0007] As a preferred technical solution of the present invention, the grooves are segmented and arc-shaped and deepened towards the cavity.

[0008] As a preferred technical solution of the present invention, the intersection points of adjacent two segments of the grooves are the deepest.

[0009] As a preferred technical solution of the present invention, the positions of the intersection points of the grooves on the inner side wall and the outer side wall correspond to each other and are connected to form support points.

[0010] As a preferred technical solution of the present invention, a number of vertically and horizontally intersecting grooves divide the inner side wall and the outer side wall into a number of buffer units.

[0011] As a preferred technical solution of the present invention, a number of vertically and horizontally intersecting grooves are connected together inside the cavity to form a skeleton-like structure.

[0012] As a preferred technical solution of the present invention, the grooves are segmented and inclined and deepened towards the cavity.

[0013] As a preferred technical solution of the present invention, the grooves meet at the top of the corner guard body to form an edge reinforcement three-vertex secondary buffer reinforcement structure.

[0014] A strengthening method for a reinforced double-layer buffer corner guard, comprising the following strengthening method steps:

[0015] S1. Blow molding the corner guard body, and arranging criss-cross grooves on the outer side wall and the inner side wall of the corner guard body. The grooves are segmented into an arch shape and deepened along the wall surface towards the cavity direction, so that the cavity forms a gradually buffered structure with different distances. Several criss-cross grooves are connected together inside the cavity to form a skeleton-like structure;

[0016] S2. Strengthening the skeleton-like cavity. By arranging dense criss-cross grooves on the inner side wall and the outer side wall of the corner guard body, the large-area wall surface is divided into multiple independent strengthening and buffering units;

[0017] S3. Strengthening the support between the inner and outer walls. The positions of the intersections of the grooves on the inner side wall and the outer side wall correspond to each other and are connected to form support points. The inner and outer wall surfaces are strengthened by the support points at the intersections of the grooves to prevent the inner and outer wall surfaces from collapsing;

[0018] S4. Dividing and layering the top angle for strengthening. The grooves on the outer side wall meet at the top to form an edge reinforcement three-vertex secondary buffer reinforcement structure, changing the original single-vertex large-area wall surface into a multi-edge reinforcement three-vertex first buffer and then intersection edge vertex buffer secondary buffer reinforcement structure.

[0019] As a preferred technical solution of the present invention, in S3, when the grooves are segmented into an arch shape and deepened along the wall surface towards the cavity direction, the intersections of the grooves on the inner side wall and the outer side wall can be selected as non-connected solutions, and only need to reach a predetermined depth without connection.

[0020] Compared with the prior art, the present invention provides a reinforced double-layer buffer corner guard and a strengthening method thereof, having the following beneficial effects:

[0021] 1. For the reinforced double-layer buffer corner guard and the strengthening method thereof, several arch-shaped grooves are connected together inside the cavity to form a skeleton-like structure, which can form a void space to meet the requirements of the blow molding process for allowing gas to flow smoothly in the material pipe. Numerous support points can support the wall surfaces of the inner side wall and the outer side wall, thereby preventing the wall surfaces from collapsing. The grooves divide the entire large-area wall surface into numerous buffer units, thus greatly increasing the wall strength.

[0022] 2. The enhanced double-layer buffer corner protector and its enhancement method. With several crisscrossed grooves designed, it can achieve the required strength while greatly reducing the wall thickness, thus significantly reducing the material, lightening the weight, saving material costs and transportation costs. Compared with the groove intersections formed by material stacking, the wall thickness of the buffer unit is more uniform and the wall surface is softer, which can well protect the product. When used in conjunction with the grooves, both the strength of the corner protector and the soft wall surface are obtained. It is a scientific, concise and ingenious structure with broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 FIG. is a schematic structural diagram of an enhanced double-layer buffer corner protector and its enhancement method proposed by the present invention;

[0024] Figure 2 FIG. is a schematic diagram of the inner wall structure of an enhanced double-layer buffer corner protector and its enhancement method proposed by the present invention;

[0025] Figure 3 FIG. is a schematic diagram of the outer wall structure of an enhanced double-layer buffer corner protector and its enhancement method proposed by the present invention;

[0026] Figure 4 FIG. is a sectional view of the cavity structure of an enhanced double-layer buffer corner protector and its enhancement method proposed by the present invention;

[0027] Figure 5 FIG. is a schematic diagram of the enhancement method of an enhanced double-layer buffer corner protector and its enhancement method proposed by the present invention.

[0028] In the figure: 1. Corner protector main body; 11. Inner wall; 12. Outer wall; 13. Cavity; 14. Groove; 15. Support point; 16. Buffer unit; 17. Skeleton-like structure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1-5, A reinforced double - layer buffer corner protector and its reinforcement method, including a corner protector main body 1. The corner protector main body 1 includes an inner side wall 11, an outer side wall 12, and a cavity 13 disposed between the inner side wall 11 and the outer side wall 12. A number of vertically and horizontally criss - crossed grooves 14 are provided on both the inner side wall 11 and the outer side wall 12. The number of vertically and horizontally criss - crossed grooves 14 forms a groove 14 network. The groove 14 network increases the wall surface stiffness. At the same time, the groove 14 network dissipates energy through geometric deformation. A double - layer buffer structure is formed through the cavity 13 between the inner and outer side walls 12, and the air layer is used to absorb the impact energy. The cavity 13 provides primary buffering, and the grooves 14 disperse stress. Compared with the traditional single - layer corner protector, the impact resistance is greatly improved.

[0031] As a specific technical solution of this embodiment, the groove 14 is segmented and deepened in an arc shape towards the cavity 13 direction, and the groove 14 is segmented and inclined and deepened towards the cavity 13 direction.

[0032] In this implementation scheme, the arc - shaped groove 14 conforms to the natural deformation path of the material under compression, similar to the mechanical conduction principle of an arch bridge. The impact force is transmitted along the arc of the groove 14 to the support point 15, and the local compressive strength is greatly improved, avoiding the wall surface rupture caused by stress concentration. The corner protector main body 1 is made of a ductile material, preferably plastic.

[0033] As a specific technical solution of this embodiment, the intersection of two adjacent segments of the groove 14 is the deepest, and the positions of the intersections of the grooves 14 on the inner side wall 11 and the outer side wall 12 correspond to each other and are connected to form a support point 15.

[0034] In this implementation scheme, the depth of the intersection point is the largest and is connected to the opposite side wall to form a distributed micro - support point 15 network. The anti - collapse ability is enhanced by the material stacking at the support point 15. The density of the support points 15 is large, effectively improving the anti - collapse ability of the wall surfaces of the inner side wall 11 and the outer side wall 12.

[0035] As a specific technical solution of this embodiment, a number of vertically and horizontally criss - crossed grooves 14 divide the inner side wall 11 and the outer side wall 12 into several buffer units 16.

[0036] In this implementation scheme, the groove 14 divides the wall surface into honeycomb - like units, following the principle of dispersing loads in composite materials. Each unit independently bears the local load, avoiding the overall failure of the large - area wall surface.

[0037] As a specific technical solution of this embodiment, the cross - section of the groove 14 is one of V - shaped, U - shaped or arc - shaped.

[0038] In this embodiment, the V-shaped 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-shaped groove has the best compressive strength and the U-shaped groove has the best resilience. Among them, the V-shaped groove is preferred as the cross-sectional shape of the groove 14.

[0039] As a specific technical solution of this embodiment, a plurality of crisscross grooves 14 are connected together inside the cavity 13 to form a skeleton-like structure 17 .

[0040] In this embodiment, the skeleton-like structure 17 is combined with the principle of bionics to form a three-dimensional mesh support framework to optimize the force transmission path.

[0041] As a specific technical solution of this embodiment, the grooves 14 meet at the top of the corner protector body 1 to form a secondary buffer reinforcement structure with three vertices for edge reinforcement.

[0042] In this embodiment, after the corner guard body 1 is blow-molded, the cavity 13 is in a closed state. The closed cavity 13 maintains the internal air pressure buffering effect, improves the product's buffering capacity, and the edges strengthen the three-vertex secondary buffering reinforcement structure, further ensuring the overall strength and buffering capacity of the product.

[0043] A method for strengthening a reinforced double-layer buffer corner protector, comprising the following strengthening method steps:

[0044] S1. The corner protector body is blow-molded, and crisscross grooves 14 are arranged on the outer wall 12 and the inner wall 11 of the corner protector body 1. The grooves 14 are segmented and deepened in an arch shape along the wall surface toward the cavity 13, so that the cavity forms a gradual buffer structure with different distances. Several crisscross grooves 14 are connected together inside the cavity 13 to form a skeleton-like structure 17;

[0045] S2, skeleton-type cavity reinforcement, by providing dense criss-cross grooves 14 on the inner wall 11 and the outer wall 12 of the corner protector body 1, the large wall surface is divided into a plurality of independent reinforcement buffer units 16;

[0046] S3, the support between the inner and outer walls is strengthened, the grooves 14 on the inner wall 11 and the outer wall 12 are located at the intersections of the vertical and horizontal positions and are connected to each other to form support points 15, and the inner and outer walls are strengthened and supported by the support points 15 at the intersections of the grooves 14 to prevent the inner and outer walls from collapsing;

[0047] S4. The top corners are divided and layered for strengthening. The grooves 14 on the outer wall 12 meet at the top to form a three-vertex secondary buffering reinforcement structure with edge reinforcement, which transforms the original single-vertex large-area wall into a multi-edge reinforced three-vertex secondary buffering reinforcement structure with buffering first and then intersection edge vertex buffering.

[0048] As a specific technical solution of this embodiment, in S3, when the groove 14 is segmented and deepened in an arch 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 adopt a non-connection scheme, and only need to reach a predetermined depth without connection.

[0049] In this implementation scheme, when the groove 14 is segmented and deepened in an arch shape and inclined 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 connected together to form a support point 15, or a non-connection scheme can be adopted. Only need to reach a predetermined depth without connection, but the intersection points of the grooves 14 on the inner wall 11 and the outer wall 12 need to correspond one by one, and still can play a role in supporting the wall surface.

[0050] In summary, for this enhanced double-layer buffer corner and its strengthening method, several arch-shaped grooves 14 are connected together inside the cavity 13 to form a skeleton-like structure 17, which can form an air gap space to meet the requirements of the blow molding process for allowing gas to flow smoothly in the material pipe. Many support points 15 can support the wall surfaces of the inner wall 11 and the outer wall 12, thereby preventing the wall surfaces from collapsing. The groove 14 divides the entire large-area wall surface into numerous buffer units 16, thus greatly increasing the wall surface strength.

[0051] For this enhanced double-layer buffer corner and its strengthening method, the design of several criss-crossing grooves 14 achieves the required strength, and at the same time can greatly reduce the wall thickness, thereby greatly reducing the material, reducing the weight, saving material costs and transportation costs. Compared with the intersection points of the grooves 14 where materials are piled up, the wall thickness of the buffer unit 16 is more uniform and the wall surface is softer, which can well protect the product. When used in conjunction with the groove 14, both the strength of the corner and a soft wall surface are obtained. It is a scientific, concise and ingenious structure with broad application prospects.

[0052] It should be noted that in this article, terms such as "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Without further limitations, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0053] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An enhanced double-layer buffer corner protector, comprising a corner protector main body (1), characterized in that: The corner guard body (1) includes an inner side wall (11), an outer side wall (12), and a cavity (13) disposed between the inner side wall (11) and the outer side wall (12); A plurality of crisscrossed grooves (14) are provided on both the inner side wall (11) and the outer side wall (12).

2. The enhanced double-layer buffer corner guard according to claim 1, wherein: The grooves (14) are segmented and arc-shaped deeper towards the cavity (13).

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

4. The enhanced double-layer buffer corner guard according to claim 1, characterized in that: The intersection positions of the grooves (14) on the inner side wall (11) and the outer side wall (12) correspond to each other and are connected to form support points (15).

5. An enhanced double-layer buffer corner guard according to claim 1, wherein: A plurality of crisscrossed grooves (14) divide the inner side wall (11) and the outer side wall (12) into a plurality of buffer units (16).

6. The enhanced double-layer buffer corner protector according to claim 1, characterized in that: A plurality of crisscrossed grooves (14) are connected together inside the cavity (13) to form a pseudo-skeleton structure (17).

7. The enhanced double-layer buffer corner protector according to claim 1, characterized in that: The grooves (14) are segmented and inclined deeper towards the cavity (13).

8. The enhanced double-layer buffer corner protector according to claim 1, wherein: The grooves (14) converge at the top of the corner guard body (1) to form an edge reinforcement and secondary buffer reinforcement structure.

9. A strengthening method for the enhanced double-layer buffer corner guard according to any one of claims 1-8, characterized in that, It includes the following reinforcement method steps: S1. Blow molding the corner guard body, and providing crisscrossed grooves (14) on the outer side wall (12) and the inner side wall (11) of the corner guard body (1). The grooves (14) are segmented and arc-shaped deeper along the wall surface towards the cavity (13), so that the cavity forms a gradually buffered structure with different distances. A plurality of crisscrossed grooves (14) are connected together inside the cavity (13) to form a pseudo-skeleton structure (17); S2. Strengthening the pseudo-skeleton type cavity. By providing dense crisscrossed grooves (14) on the inner side wall (11) and the outer side wall (12) of the corner guard body (1), the large-area wall surface is divided into a plurality of independent reinforcement and buffer units (16); S3. Strengthening the support between the inner and outer walls. The intersection positions of the grooves (14) on the inner side wall (11) and the outer side wall (12) correspond to each other and are connected to form support points (15). The inner and outer wall surfaces are strengthened by the support points (15) at the intersections of the grooves (14) to prevent the inner and outer wall surfaces from collapsing; S4. Dividing and layering the apex for strengthening. The grooves (14) on the outer side wall (12) converge at the top to form an edge reinforcement and three-vertex secondary buffer reinforcement structure, changing the original single-vertex large-area wall surface into a multi-edge reinforcement and three-vertex secondary buffer reinforcement structure with a first buffer at the vertices and then a buffer at the intersecting edge vertices.

10. The strengthening method of a reinforced double-layer buffer corner protector according to claim 9, characterized in that: In the above S3, when the grooves (14) are segmented and arc-shaped deeper along the wall surface towards the cavity (13), the non-connection scheme can be selected for the intersection positions of the grooves (14) on the inner side wall (11) and the outer side wall (12), and only the predetermined depth needs to be reached without connection.

Images