PACKAGING BOX

Abstract

A packaging box includes a bottom plate, two cover plates, two external plates, two internal plates, and four flaps. Each of the flaps has an engaging opening. When the packaging box is formed, the four flaps are respectively folded to closely contact the corresponding external plates, and the two internal plates are respectively folded to be inserted into the engaging openings of the two flaps on the corresponding sides, to save materials of the packaging box.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This Non-provisional application claims priority under 35 U.S.C. § 119(a) on Patent Application No(s). 201820465572.0 filed in People's Republic of China on Apr. 3, 2018, the entire contents of which are hereby incorporated by reference.

BACKGROUND

Technical Field

The disclosure discloses a packaging box and, more particular, to a packaging box of an electronic product.

Related Art

As the technology progresses, various electronic products emerge. A highly-precise and pretty fragile electronic product, being extremely prone to be damaged due to impact of external environment such as water, dust, and collision force during delivery, has a much higher requirement on a packaging structure.

To reduce a damage rate of a commodity during delivery, functions of waterproofing, dust-proofing, and anti-seismic are basic functions that a protective packaging structure needs to have. Currently, a relatively common method is to accommodate an electronic product into a packaging box to protect the electronic product.

However, as environmental protection awareness is increasingly higher, effective reduction of the amount of materials used for the packaging box can help meet a requirement of energy conservation and environment protection.

SUMMARY

In view of this, an objective of the disclosure is to provide a packaging box to improve the prior art.

The disclosure discloses a packaging box including a bottom plate, two cover plates, two external plates, two internal plates, and four flaps. The two cover plates are respectively connected to two opposite sides of the bottom plate along a first direction. The two external plates are respectively connected to another two opposite sides of the bottom plate along a second direction, and the second direction is perpendicular to the first direction. The two internal plates are respectively connected to outer sides of the corresponding external plates along the second direction. Sides of the two internal plates away from the corresponding external plates respectively have two flanges, and a length of the internal plate along the second direction is less than a length of the external plate along the second direction. Two opposite sides of each cover plate that are distributed along the second direction are respectively connected to a flap, and each of the flaps has an engaging opening. When the two cover plates and the two external plates are respectively folded toward the bottom plate to form the packaging box, the four flaps are respectively folded to closely contact the corresponding external plates, and the two internal plates are respectively folded to be inserted into the engaging openings of the two flaps on the corresponding sides.

In an embodiment, the two cover plates may respectively be a front cover plate and a rear cover plate.

In an embodiment, the packaging box may further include a box cover portion and an inserting tongue portion. The box cover portion may be connected to the rear cover plate, and the inserting tongue portion may be connected to the box cover portion.

In an embodiment, each of the internal plates may have an extending portion and an inserting portion, and the extending portion may be connected to the corresponding external plate. The inserting portion may be connected to the extending portion, and the two flanges may be provided on the inserting portion.

In an embodiment, a width of the inserting portion along the first direction may be less than a width of the external plate along the first direction.

In an embodiment, a width of the inserting portion along the first direction may be less than an engaging opening width formed by the engaging openings of the two flaps on the corresponding sides along the first direction.

In an embodiment, the flanges may be formed on two sides of the inserting portion and may be fixed into the engaging openings of the two flaps on the corresponding sides, and a width of the two flanges along the first direction may be greater than the engaging opening width.

In an embodiment, the two external plates may respectively include a compensation portion connected to the corresponding internal plate.

In the present disclosure, by using the packaging box, a height of the internal plate is effectively reduced, so that the amount of materials used for the packaging box may be effectively reduced. In addition, for the packaging box, the inserting portion of the internal plate may further be inserted into the engaging opening of the flap, thereby more effectively improving the strength of the structure of the packaging box.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic expanded view of a packaging box according to an embodiment of the present disclosure; and

FIG. 2 is a three-dimensional schematic diagram of a part of a packaging box according to an embodiment of the present disclosure.

DETAILED DESCRIPTION

The following embodiments are described in detail with reference to the accompanying drawings. However, the provided embodiments are not intended to limit the scope of the present disclosure, and the descriptions of operations of a structure are not intended to limit an execution sequence of the structure. Any apparatus that has an equivalent efficacy and that is generated by a structure formed by recombination of components shall fall within the scoped of the present disclosure. In addition, the accompanying drawings are merely illustrative and are not drawn to original scale. For ease of understanding, same or similar components in the following descriptions are described by using same symbols.

In addition, unless specifically noted, the terms used in the specification and the claims usually have ordinary meaning that the terms have when being applied to the art, the content of this disclosure and special content. Some terms used to describe the present disclosure are discussed below or in another part in this specification, to provide additional instructions on descriptions of the present disclosure for a person skilled in the art.

The “first”, “second”, and the like used in the specification do not specially indicate an order or sequence, and are not intended to limit the present disclosure. Rather, they are merely used for distinguishing elements or operations described by using same technical terms.

The terms used in the specification such as “comprise”, “include”, “have”, and “contain” are open expressions, and should be interpreted as “include but is not limited to”.

FIG. 1 is a schematic expanded view of a packaging box according to an embodiment of the present disclosure, and FIG. 2 is a three-dimensional schematic diagram of a part of a packaging box according to an embodiment of the present disclosure. As shown in the figures, the packaging box 100 has a bottom plate 170, two cover plates, such as a front cover plate 180 and a rear cover plate 160, two external plates 140, two internal plates 150, and a group of flaps 130.

The two cover plates are respectively connected to two opposite sides of the bottom plate 170 along a first direction 210, and the two external plates 140 are respectively connected to another two opposite sides of the bottom plate 170 along a second direction 220. That is, the two cover plates and the two external plates 140 are respectively connected to the four sides of the rectangle bottom plate 170. The first direction 210, i.e. a direction of a Y axis, is perpendicular to the second direction 220, i.e. a direction of an X axis.

The two internal plates 150 are respectively connected to outer sides of the corresponding external plates 140 along the second direction 220. That is, the external plate 140 is connected between the internal plate 150 and the bottom plate 170. The group of flaps 130 are respectively connect to two opposite sides of the two cover plates. In addition, a length of the internal plate 150 along the second direction 220 is less than a length of the external plate 140 along the second direction 220. That is, a height 156 of the internal plate 150 is less than a height 144 of the external plate 140.

Compared with a conventional packaging box, the packaging box 100 effectively reduces the height of the internal plate 150, thereby effectively reducing an amount of paper needed. The packaging box 100 in FIG. 1 is taken for example. When the height 156 of the internal plate 150, in other words, the length of the internal plate 150 along the second direction 220, is designed to be one third of the height 144 of the external plate 140, in other words, one third of the length of the external plate 140 along the second direction 220, paper in a hatched area 200 in FIG. 1 may be completely saved, thereby effectively reducing the amount of paper used for the packaging box, and further reducing production costs of the packaging box.

In addition, the group of flaps 130 includes four flaps. For example, two first flaps 132 are respectively connected to the two opposite sides of the rear cover plate 160 along the second direction 220, and two second flaps 134 are respectively connected to the two opposite sides of the front cover plate 180 along the second direction 220. Each first flap 132 includes a first engaging opening 133, and each second flap 134 includes a second engaging opening 135.

When the front cover plate 180, the rear cover plate 160, and the two external plates 140 are respectively folded toward the bottom plate 170 to form the packaging box, the two first flaps 132 and the two second flaps 134 are respectively folded to closely contact the corresponding external plates 140, and the two internal plates 150 are respectively folded to be inserted into the first engaging openings 133 of the first flaps 132 and the second engaging openings 135 of the second flaps 134 that are on the corresponding sides.

In an embodiment, each internal plate 150 includes an extending portion 151 connected to a corresponding external plate 140 and an inserting portion 153 connected to the extending portion 151. A width 154 of the inserting portion 153 along the first direction 210 is less than a width 142 of the external plate 140 along the first direction 210.

Please refer to FIG. 2. When the first flap 132 and the second flap 134 are folded to closely contact the corresponding external plates 140, the first engaging opening 133 of the first flap 132 and the second engaging opening 135 of the second flap 134 form an engaging opening width 131, and the inserting portion 153 is inserted into the first engaging opening 133 and the second engaging opening 135 thus to be fixed therein, to effectively engage the internal plate 150, the first flap 132, the second flap 134, and the external plate 140 together, thereby further improving the strength of the structure of the packaging box 100 and effectively protecting a product placed in the packaging box 100.

In an embodiment, the width 154 of the inserting portion 153 along the first direction 210 is less than the engaging opening width 131 formed by the first engaging opening 133 and the second engaging opening 135.

Please refer to FIG. 1 and FIG. 2. The inserting portion 153 further includes two flanges 157, formed on two sides of the inserting portion 153 to be fixed into the first engaging opening 133 and the second engaging opening 135, and a width 152 of the two flanges 157 along the first direction 210 is greater than the engaging opening width 131.

In an embodiment, the packaging box 100 further includes a box cover portion 120 connected to the rear cover plate 160 and an inserting tongue portion 110 connected to the box cover portion 120, to form an sealed packaging box 100. However, the present disclosure is not limited thereto. In addition, the external plate 140 further includes a compensation portion 146 for compensating for the thickness of materials of the packaging box 100 when the packaging box 100 is folded.

In conclusion, the packaging box in the preferred embodiment of the present disclosure effectively reduces a height of the internal plate, and therefore may effectively reduce the amount of paper needed by the packaging box. In addition, by inserting the inserting portion of the internal plate into the engaging opening of the flap, the strength of the structure of the packaging box may be more effectively improved.

Although the present disclosure has been disclosed above through the embodiments, the above embodiments are not intended to limit the present disclosure. A person of ordinary skill in the art may make various modifications and improvements without departing from the spirit and scope of the present disclosure. Therefore, the protection scope of the present disclosure is subject to the appended claims.

Claims

1. A packaging box, comprising:

a bottom plate;

two cover plates respectively connected to two opposite sides of the bottom plate along a first direction;

two external plates respectively connected to another two opposite sides of the bottom plate along a second direction, wherein the second direction is perpendicular to the first direction;

two internal plates respectively connected to outer sides of the corresponding external plates along the second direction, wherein sides of the two internal plates away from the corresponding external plates respectively have two flanges, and a length of the internal plate along the second direction is less than a length of the external plate along the second direction; and

four flaps, wherein two opposite sides of each cover plate that are distributed along the second direction are respectively connected to a flap, each of the flaps has an engaging opening, and when the two cover plates and the two external plates are respectively folded toward the bottom plate to form the packaging box, the four flaps are respectively folded to closely contact the corresponding external plates, and the two internal plates are respectively folded to be inserted into the engaging openings of the two flaps on the corresponding sides.

2. The packaging box according to claim 1, wherein the two cover plates are respectively a front cover plate and a rear cover plate.

3. The packaging box according to claim 2, further comprising a box cover portion and an inserting tongue portion, wherein the box cover portion is connected to the rear cover plate, and the inserting tongue portion is connected to the box cover portion.

4. The packaging box according to claim 1, wherein each of the internal plates has an extending portion and an inserting portion, the extending portion is connected to the corresponding external plate, the inserting portion is connected to the extending portion, and the two flanges are provided on the inserting portion.

5. The packaging box according to claim 4, wherein a width of the inserting portion along the first direction is less than a width of the external plate along the first direction.

6. The packaging box according to claim 4, wherein a width of the inserting portion along the first direction is less than an engaging opening width formed by the engaging openings of the two flaps on the corresponding sides along the first direction.

7. The packaging box according to claim 6, wherein the flanges are formed on two sides of the inserting portion and are fixed into the engaging openings of the two flaps on the corresponding sides, and a width of the flanges along the first direction is greater than the engaging opening width.

8. The packaging box according to claim 1, wherein the two external plates respectively comprise a compensation portion connected to the corresponding internal plate.