Multi-layer foam box

Abstract

The utility model relates to the technical field of foam boxes, and discloses a multilayer foam box which comprises a box body and a box cover, the box body is specifically formed by combining an outer shell, a center filling layer and an inner shell, the center filling layer is arranged between the outer shell and the inner shell, a plurality of first positioning convex teeth are evenly arranged on the inner wall of the outer shell, and a plurality of second positioning convex teeth are evenly arranged on the inner wall of the inner shell. A plurality of second positioning convex teeth are evenly arranged on the outer wall of the inner shell, a plurality of strip-shaped positioning grooves are formed in the inner wall and the outer wall of the center filling layer, and the first positioning convex teeth and the second positioning convex teeth are correspondingly clamped into the strip-shaped positioning grooves in the inner side and the outer side. A square-frame-shaped end cover is arranged at the upper end opening of the box body to seal the upper end face formed after the outer shell, the center filling layer and the inner shell are combined. According to the multi-layer foam box, the multi-layer structural design is adopted, good protection performance, high structural stability and high use convenience are combined, all-around protection is provided for objects in the box, the service life of the foam box is prolonged, the operation convenience of the foam box is improved, and the multi-layer foam box is suitable for various occasions where the objects need to be protected and transported.

Description

Technical Field

[0001] The utility model relates to the technical field of foam boxes, in particular to a multi-layer foam box. Background Art

[0002] As a commonly used packaging and transportation container, foam boxes are widely used in various fields. In daily life and logistics transportation, people often need to use foam boxes to protect items from damage during transportation and storage.

[0003] However, existing foam boxes have some shortcomings. First, many foam boxes have a relatively simple structure and usually use only a single foam material, resulting in poor compression resistance and wear resistance. They are easily squeezed, deformed or damaged during transportation and stacking, and cannot provide reliable outer protection for the items in the box.

[0004] Secondly, existing foam boxes often have less than ideal cushioning properties. When the box is shaken or bumped, it cannot effectively absorb energy, making the items inside susceptible to greater impact, thereby increasing the risk of damage to the items.

[0005] Finally, existing foam boxes often do not pay enough attention to the protection of the corners. The corners of the foam boxes are easily damaged when they are hit or rubbed. Especially when multiple foam boxes are stacked or transported, the mutual wear between the corners is more serious, shortening the service life of the foam boxes. Utility Model Content

[0006] (1) Technical problems solved

[0007] In view of the deficiencies in the prior art, the utility model provides a multi-layer foam box to solve the above problems.

[0008] (2) Technical solution

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-layer foam box, comprising a box body and a box cover, the box body being specifically composed of an outer shell, a central filling layer and an inner shell, the central filling layer being arranged between the outer shell and the inner shell, a plurality of first positioning protrusions being evenly arranged on the inner wall of the outer shell, a plurality of second positioning protrusions being evenly arranged on the outer wall of the inner shell, a plurality of strip-shaped positioning grooves being arranged on the inner and outer walls of the central filling layer, a plurality of first positioning protrusions and second positioning protrusions being correspondingly snapped into the inside of the inner and outer strip-shaped positioning grooves, a square frame-shaped end cover being provided at the upper end port of the box body to close the upper end surface of the combination of the outer shell, the central filling layer and the inner shell.

[0010] As a preferred technical solution of the present invention, the box cover and the box body are composed of the same multi-layer structure.

[0011] As a preferred technical solution of the present invention, two magic tapes are provided on the front wall of the box body, and two magic tapes are provided on the front side wall of the box cover.

[0012] As a preferred technical solution of the present invention, the outer shell, the inner shell and the end cover are all made of hard foam material.

[0013] As a preferred technical solution of the present invention, the central filling layer is made of soft foam material.

[0014] As a preferred technical solution of the present invention, the box body and the flip end of the box cover are integrated into one body through a flexible flip cover connecting belt.

[0015] As a preferred technical solution of the present invention, anti-smear edge strips are provided on the four corner edges of the box body and the box cover.

[0016] Compared with the prior art, the present invention provides a multi-layer foam box with the following beneficial effects:

[0017] Good protection performance:

[0018] Compression and wear resistance: The outer shell of the box is made of hard foam material, which has good pressure resistance and wear resistance. It can prevent the box from being squeezed, deformed or damaged during transportation and stacking, and provide outer protection for the items in the box.

[0019] Cushioning and shock absorption: The central filling layer is made of soft foam material with good cushioning performance. When the box is vibrated or collided, it can effectively absorb energy, reduce the impact force on the internal items, and provide good protection for the items in the box.

[0020] Stable storage: The inner shell is made of hard foam material, which provides a relatively regular and stable storage space for the items in the box, and can maintain a stable shape to prevent the items in the box from causing wear and tear on the interior of the box.

[0021] Anti-collision: The anti-collision edge strips set on the four corner edges of the box body and the box cover can first bear the impact force when the foam box is collided or rubbed, protecting the corner ends of the box body and the box cover from damage and extending the service life of the foam box.

[0022] High structural stability:

[0023] Positioning structure: The first positioning protrusion on the inner wall of the outer shell and the second positioning protrusion on the outer wall of the inner shell are respectively connected to the strip positioning grooves on the inner and outer walls of the central filling layer, so that the outer shell, the central filling layer and the inner shell can be tightly combined together to prevent displacement between the layers during use, thereby ensuring the stability of the box structure.

[0024] End cover closure: the square end cover of the upper port of the box body adopts hard foam material, which can close the upper end face of the combination of the outer shell, the center filling layer and the inner shell, further enhancing the structural stability of the box body.

[0025] In summary, the multi-layer foam box provides all-round protection for the articles in the box by adopting a multi-layer structure design, combining good protection performance, high structural stability and strong use convenience, while also improving the service life and operation convenience of the foam box, and is suitable for various occasions requiring protection and transportation of articles. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model;

[0027] Figure 2 It is a distribution schematic diagram of the flip cover connecting belt of the utility model;

[0028] Figure 3 It is an explosion separation schematic diagram of the internal structure of the box body of the utility model.

[0029] Among them: 1, the box body; 2, the box cover; 3, the anti-knock edge; 4, the magic sticky tape; 5, the magic sticky tape; 6, the flip cover connecting belt;

[0030] 11, the outer shell; 12, the center filling layer; 13, the inner shell; 14, the end cover;

[0031] 111, the first positioning protrusion;

[0032] 121, the strip-shaped positioning groove;

[0033] 131, the second positioning protrusion. DETAILED DESCRIPTION

[0034] The utility model will be further described in detail below in combination with the drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. The embodiments in the application and the features in the embodiments can be combined with each other without conflict. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of the utility model protection.

[0035] It should be noted that if the utility model embodiments involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings). If the certain posture changes, the directional indications also change accordingly.

[0036] In addition, "multiple" means more than two. Furthermore, the technical solutions of the various embodiments may be combined with each other, but this must be based on the premise that they can be implemented by a person of ordinary skill in the art. If the combination of technical solutions is mutually inconsistent or cannot be implemented, it shall be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0037] See also Figure 1-3 , a multi-layer foam box, consisting of a box body 1 and a box cover 2.

[0038] 1. Box structure

[0039] Multi-layer structure combination

[0040] The box 1 is composed of an outer shell 11, a central filling layer 12, and an inner shell 13. As the outermost layer of the box, the outer shell 11 primarily protects the internal structure and withstands external impact forces. Made of a rigid foam material, it offers excellent compression and wear resistance, preventing the box from being deformed or damaged during transport and stacking.

[0041] The center filling layer 12 is located between the outer shell 11 and the inner shell 13 and is made of soft foam. Soft foam has excellent cushioning properties. When the box is subjected to vibration or collision, the center filling layer 12 can effectively absorb energy, reducing the impact force on the items inside, thereby providing good protection for the items inside.

[0042] The inner shell 13 is also made of hard foam material, which provides a relatively regular and stable storage space for the items in the box. The characteristics of the hard foam enable the inner shell 13 to maintain a stable shape, preventing the items in the box from causing wear and tear on the interior of the box.

[0043] Positioning structure

[0044] Several first positioning teeth 111 are evenly distributed on the inner wall of the outer shell 11, and several second positioning teeth 131 are evenly distributed on the outer wall of the inner shell 13. Several strip-shaped positioning grooves 121 are provided on both the inner and outer walls of the central filling layer 12. The first and second positioning teeth 111, 131 snap into place within the inner and outer strip-shaped positioning grooves 121, respectively. This positioning structure ensures that the outer shell 11, central filling layer 12, and inner shell 13 are tightly assembled together, preventing any displacement between the layers during use. The locking engagement between the teeth and the positioning grooves ensures the stability of the box structure.

[0045] The upper end of the box body 1 is provided with a square frame-shaped end cover 14 for closing the upper end surface of the outer shell 11, the central filling layer 12 and the inner shell 13. The end cover 14 is made of hard foam material and can be used to close the top surface of the three-layer structure.

[0046] 2. Box cover structure

[0047] The lid 2 shares the same multi-layer structure as the box body 1. This shared design ensures that the lid 2 also possesses excellent compression resistance, cushioning, and protective properties. When placed on the box body 1, the lid 2 matches the structure of the box body 1, providing comprehensive protection for the contents.

[0048] 3. Magic tape structure

[0049] Two Velcro strips 4 are attached to the front wall of the box body 1, and two Velcro strips 5 are attached to the front side walls of the box lid 2. The Velcro strips 4 and 5 facilitate the opening and closing of the box body 1 and lid 2. To open the lid 2, simply pull the Velcro apart, making the operation simple and convenient. Furthermore, the Velcro strips have a certain degree of stickiness, ensuring that the lid 2 will not accidentally open when closed on the box body 1, thus ensuring the safety of the items inside the box.

[0050] 4. Flip cover connecting belt structure

[0051] The box body 1 and the flip-up end of the lid 2 are connected together by a flexible flap connecting strap 6. Made of a flexible material, the flap connecting strap 6 allows the lid 2 to be flexibly flipped relative to the box body 1, making it convenient for the user to open and close the lid 2. Furthermore, the flap connecting strap 6 connects the box body 1 and the lid 2 as a single unit, preventing the lid 2 from being lost and improving the convenience of using the foam box.

[0052] 5. Anti-knock edge strip structure

[0053] Anti-smear strips 3 are installed on all four corners of the box body 1 and lid 2. These strips are designed to withstand the impact of collisions or friction, protecting the corners of the box body 1 and lid 2 from damage. Especially when stacking or transporting multiple foam boxes, these strips reduce wear and tear on the corners, extending the life of the boxes.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0055] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0056] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A multi-layer foam box, comprising a box body (1) and a box cover (2), characterized in that: The box body (1) is specifically composed of an outer shell (11), a central filling layer (12) and an inner shell (13). The central filling layer (12) is arranged between the outer shell (11) and the inner shell (13). A plurality of first positioning protrusions (111) are evenly arranged on the inner wall of the outer shell (11), and a plurality of second positioning protrusions (131) are evenly arranged on the outer wall of the inner shell (13). A plurality of strip-shaped positioning grooves (121) are provided on both the inner and outer walls of the central filling layer (12). The plurality of first positioning protrusions (111) and second positioning protrusions (131) are correspondingly engaged with the inside of the inner and outer strip-shaped positioning grooves (121). A square frame-shaped end cover (14) is provided at the upper end of the box body (1) to close the upper end surface of the outer shell (11), the central filling layer (12) and the inner shell (13).

2. A multi-layer foam box according to claim 1, characterized in that: The box cover (2) and the box body (1) are constructed with the same multi-layer structure.

3. The multi-layer foam box according to claim 1, characterized in that: Two magic tapes (4) are provided on the front wall of the box body (1), and two magic tapes (5) are provided on the front side wall of the box cover (2).

4. The multi-layer foam box according to claim 1, characterized in that: The outer shell, the inner shell (13) and the end cover (14) are all made of hard foam material.

5. The multi-layer foam box according to claim 1, characterized in that: The central filling layer (12) is made of soft foam material.

6. The multi-layer foam box according to claim 1, characterized in that: The box body (1) and the flip end of the box cover (2) are combined into one body via a flexible flip cover connecting belt (6).

7. The multi-layer foam box according to claim 1, characterized in that: Anti-smash edge strips (3) are provided on the four corner edges of the box body (1) and the box cover (2).

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