Fresh-keeping aluminum box

Abstract

The fresh-keeping aluminum box comprises a box body, an opening is formed in the upper end face of the box body, and a containing cavity is formed in the box body; the edge of the upper end face of the box body is turned over in the horizontal direction to form a sealing edge, the edge of the sealing edge is turned over in the direction of the containing cavity and pressed downwards to form a turned edge, the edge of the turned edge is contained in an inner cavity of the turned edge, and the upper end face of the turned edge is flush with the sealing edge. A gap is formed between the turned edge and the sealing edge; according to the fresh-keeping aluminum box, the edge structure strength is high, the double-layer material manufacturing effect is achieved through the curled edges, and the high-end performance of packaging is improved.

Description

Technical Field

[0001] The present application relates to the field of packaging technology, and in particular to a fresh-keeping aluminum box. Background Art

[0002] Fresh-keeping boxes are widely used in supermarkets and daily life, ensuring the freshness of food and other products. Aluminum fresh-keeping boxes are particularly popular due to their ability to preserve and heat food, making them ideal for packaging products with high freshness requirements, such as freshly stewed sea cucumbers. Because they are made of aluminum, fresh-keeping aluminum boxes have sharp edges. Existing aluminum boxes typically use outward-rolled edges, but these lack structural strength and can easily deform the upper edge of the box during the rolling process, affecting the sealing effect. Furthermore, the rolled edge only serves to smooth the edges, making it less practical. Utility Model Content

[0003] The purpose of the utility model is to solve the above technical problems and provide a fresh-keeping aluminum box with high edge structure strength and double-layer material effect formed by curling, thereby increasing the high-end nature of the packaging.

[0004] In order to achieve the above-mentioned purpose, the technical solutions of the present utility model include:

[0005] A fresh-keeping aluminum box includes a box body, wherein the upper end surface of the box body is provided with an opening, and the interior is a accommodating cavity; the edge of the upper end surface of the box body is folded horizontally to form a sealing edge, and the edge of the sealing edge is rolled toward the accommodating cavity and pressed downward to form a curling edge, the edge of the curling edge is accommodated in the inner cavity of the curling edge, and the upper end surface of the curling edge is flush with the sealing edge; there is a gap between the curling edge and the sealing edge.

[0006] In the present application, the edge of the sealing edge is rolled inward and pressed downward at the same time to form a rolled edge that is flush with the sealing edge. Due to the inward rolling, this type of rolled edge method makes it difficult to be affected by the gap between the rolled edge and the sealing edge when the force is applied, and the edge structure of the box body has high strength, which is different from the existing external rolled edge, which is easy to cause the connection to be damaged when subjected to force, thereby affecting the sealing state of the box body; in addition, due to the gap between the rolled edge and the sealing edge, the box body has a visual effect of being composed of double layers of materials. The rolled edge not only strengthens the structural strength of the box body, but also increases the high-end nature of the packaging and improves the practicality of the product.

[0007] In one embodiment, the outer surface of the box body and the outer surface of the curled edge are coated with a colored coating to create a layered difference between the box body and the sealing edge, thereby enhancing the packaging effect of the box body being made of a double-layer material.

[0008] In one embodiment, the edge of the curled edge is rolled inwardly and is located on the outer side of the inner cavity of the curled edge.

[0009] In one embodiment, the opening is sealed with a sealing film, and the sealing film is attached to the sealing edge; the sealing film is made of aluminum foil.

[0010] In one embodiment, the side wall of the box body is inclined, and the size of the accommodating cavity gradually decreases downward.

[0011] In one embodiment, a plurality of reinforcing walls convex toward the middle are arranged vertically on both side walls of the box body, and the reinforcing walls are arc-shaped.

[0012] In one embodiment, an arc-shaped protrusion is provided around the bottom of the accommodating cavity, and a distance is provided between the arc-shaped protrusion and the side wall of the box body.

[0013] In one embodiment, the thickness of the box body ranges from 0.2 mm to 0.25 mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the structure of the box provided by the utility model;

[0015] Figure 2 This is a structural exploded view of the box provided by the utility model;

[0016] Figure 3 This is a structural exploded view of the aluminum box provided by the utility model. DETAILED DESCRIPTION

[0017] The embodiment of the present application provides a fresh-keeping aluminum box, which is used to solve the problem that the structural strength of existing aluminum boxes is insufficient and the upper edge of the box body is easily deformed during the curling process, affecting the sealing effect. In addition, the curling only has the function of making the edge smooth and has low practicality.

[0018] In order to make the purpose, features, and advantages of the invention of this application more obvious and easy to understand, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described below are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0019] See also Figures 1 to 3An embodiment of the present application provides a fresh-keeping aluminum box, including a box body 100, wherein an opening 110 is provided on the upper end surface of the box body 100, and an accommodating cavity is provided inside; the edge of the upper end surface of the box body 100 is folded horizontally to form a sealing edge 120, and the edge of the sealing edge 120 is rolled toward the accommodating cavity and pressed downward to form a curling edge 130, the edge of the curling edge 130 is housed in the inner cavity of the curling edge 130, and the upper end surface of the curling edge 130 is flush with the sealing edge 120; there is a gap between the curling edge 130 and the sealing edge 120.

[0020] Specifically, the upper end surface of the box body 100 is provided with an opening 110, and a receiving cavity is formed inside to accommodate the product to be packaged; the box body 100 is formed by punching out aluminum. In this embodiment, the thickness of the box body 100 ranges from 0.2 mm to 0.25 mm to ensure sufficient structural strength; the edge of the upper end surface of the box body 100 is folded to form a horizontal sealing edge 120; the edge of the sealing edge 120 is rolled inward at least one circle to form a curling edge 130, so that the edge is received in the inner cavity of the curling edge 130, forming a rounded curling edge 130, ensuring that the user is not easily cut when using; the upper end surface of the curling edge 130 is aligned with the sealing edge 120. The sealing edge 120 is in a flush state, so that the upper end surface of the box body 100 is smooth, which is convenient for sealing the opening 110. By setting the inner curling edge 130, the structural strength of the box body 100 is enhanced, and the edge of the box body 100 is smooth, which is not easy for users to be injured when using it; and a gap is formed at the connection between the curling edge 130 and the sealing edge 120 due to the arc curling edge 130. When the curling edge 130 is subjected to force, it is not easy for the sealing edge 120 at the connection to be damaged. There is also a gap between the curling edge 130 and the sealing edge 120, which makes the box body 100 form a visual effect of being made of double layers of materials, thereby improving the high-end nature of the packaging.

[0021] Furthermore, the outer surface of the box body 100 and the outer surface of the curled edge 13 are coated with a colored coating so that there is a layered difference between them and the sealing edge 120; the coating applied on the outer surface of the box body 100 and the curled edge 130 has color, which can prevent the outer surface of the aluminum from oxidizing, and because the color is different from the sealing edge 120 and the box body 100, the visual effect of the double-layer material is further enhanced.

[0022] Furthermore, after the edge of the curling edge 130 is rolled inward, it is located on the outer side of the inner cavity of the curling edge 130. After the edge of the curling edge 130 is rolled inward, the inner cavity of the curling edge 130 is located on the side away from the sealing edge 120. The number of turns of the curling edge 130 is increased to strengthen the structural strength of the curling edge 130 and ensure that the box body 100 is not easily deformed.

[0023] Further reading Figure 3The opening 110 is sealed with a sealing film 140, which is attached to the sealing edge 120. The sealing film 140 is made of aluminum foil. The edge of the aluminum foil sealing film 140 is attached to the sealing edge 120 to seal the opening 110. In this embodiment, the thickness of the sealing film 140 is 0.16 to 0.20 mm. While sealing and preserving the food, the aluminum box is lightweight and more convenient to use.

[0024] Furthermore, the sidewalls of the box body 100 are inclined, and the size of the receiving cavity gradually decreases downward. The sidewalls of the box body 100 are vertically arranged with multiple, centrally protruding reinforcement walls 150. These arc-shaped reinforcement walls 150 form grooves on the exterior of the box body 100. The provision of the reinforcement walls 150 further strengthens the structural strength of the sidewalls of the box body 100, making the box body 100 less susceptible to deformation. A curved protrusion 160 is provided around the bottom of the receiving cavity, with a distance between the curved protrusion 160 and the sidewalls of the box body 100. Because the sidewalls are inclined, when fresh-keeping products are placed, juice can better collect at the bottom of the receiving groove. The provision of the curved protrusion 160 supports the packaged product, maintaining a distance between the packaged product and the bottom, reducing contact with juice at the bottom and preventing it from affecting the taste of the product. The curved protrusion 160 also strengthens the structural strength of the bottom of the box body 100, making the box body 100 less susceptible to deformation.

[0025] Based on the disclosure and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and any modifications and variations of the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience of description only and do not constitute any limitation to the present invention.

Claims

1. A fresh-keeping aluminum box, comprising a box body, wherein the upper end surface of the box body is provided with an opening and the interior is a receiving cavity; characterized in that: The edge of the upper end surface of the box body is folded horizontally to form a sealing edge, and the edge of the sealing edge is rolled toward the accommodating cavity and pressed downward to form a curling edge. The edge of the curling edge is housed in the inner cavity of the curling edge, and the upper end surface of the curling edge is flush with the sealing edge; there is a gap between the curling edge and the sealing edge.

2. The fresh-keeping aluminum box according to claim 1, characterized in that: The outer surface of the box body and the outer surface of the curled edge are coated with a colored coating so that there is a layered difference between the outer surface of the box body and the outer surface of the curled edge.

3. The fresh-keeping aluminum box according to claim 1, characterized in that: The edge of the curling edge is rolled inwardly and is located on the outer side of the inner cavity of the curling edge.

4. The fresh-keeping aluminum box according to claim 1, characterized in that: The opening is sealed with a sealing film, and the sealing film is attached to the sealing edge; the sealing film is made of aluminum foil.

5. The fresh-keeping aluminum box according to claim 1, characterized in that: The side wall of the box body is inclined, and the size of the accommodating cavity gradually decreases downwards.

6. The fresh-keeping aluminum box according to claim 1, characterized in that: A plurality of reinforcing walls convex toward the middle are arranged on both side walls of the box body in a vertical direction, and the reinforcing walls are arc-shaped.

7. The fresh-keeping aluminum box according to claim 1, characterized in that: An arc-shaped protrusion is arranged around the bottom of the accommodating cavity, and a distance is provided between the arc-shaped protrusion and the side wall of the box body.

8. The fresh-keeping aluminum box according to claim 1, characterized in that: The thickness of the box body ranges from 0.2 mm to 0.25 mm.

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