Packaging box

Abstract

The utility model relates to the technical field of packaging products, in particular to a packaging box which comprises a first side plate, a second side plate, a third side plate and a fourth side plate, first inserting tongues are symmetrically arranged on the second side plate, each first inserting tongue comprises a first limiting portion, a first middle portion and a first connecting portion, a first V-shaped groove is formed in the first middle portion, and a second V-shaped groove is formed in the second middle portion. The fourth side plate is provided with second inserting tongues, each second inserting tongue comprises a second limiting part, a second middle part and a second connecting part, each second middle part is provided with a second V-shaped groove, after folding, the inner side face of each first connecting part abuts against the outer side face of each second limiting part, and the inner side face of each second connecting part abuts against the outer side face of each first limiting part. The first limiting parts on one side of the packaging box penetrate through the corresponding second V-shaped grooves and then abut against the second connecting parts, the first folded plate and the second folded plate are limited, packaging operation is easy, the structure is simple, rapid assembling can be achieved, and working efficiency is relatively high.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging products, in particular to a packaging box. Background Art

[0002] Folding boxes, especially cartons, are widely used in the packaging of various products due to their advantages such as low manufacturing cost and light weight.

[0003] The box in the prior art is connected and fixed by setting a plurality of protective ears inserted between the corresponding side panels. The structure is relatively complex, and the process of assembling the box is also relatively tedious and time-consuming, and the work efficiency is relatively low.

[0004] In view of this, the applicant conducted an in-depth study on the above issues, which led to the present case. Utility Model Content

[0005] The purpose of the utility model is to provide a packaging box with a simple structure and relatively high working efficiency.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A packaging box, comprising a first side panel, a second side panel, a third side panel, and a fourth side panel that are sequentially connected and located on the same plane after unfolding, a first pressing line being formed between the first side panel and the second side panel, between the second side panel and the third side panel, and between the third side panel and the fourth side panel, a first folding plate being provided at both ends of the first side panel along the length direction, a second pressing line being formed between each of the first folding plates and the first side panel, a second folding plate being provided at both ends of the third side panel along the length direction, and a third pressing line being formed between each of the second folding plates and the third side panel;

[0008] The second side panel is symmetrically provided with first inserting tongues at both ends along its length, and a fourth pressure line is formed between each first inserting tongue and the second side panel. Each first inserting tongue includes a first limiting portion, a first intermediate portion, and a first connecting portion. In the same first inserting tongue, one side of the first intermediate portion is integrally connected to the first connecting portion, the other side of the first intermediate portion is integrally connected to the first limiting portion, and the side of the first connecting portion away from the first intermediate portion is integrally connected to the second side panel. The width of the first limiting portion is smaller than the width of the first connecting portion, and the first intermediate portion is provided with a first V-shaped groove.

[0009] The fourth side panel is symmetrically provided with second inserting tongues at both ends along its length direction, and a fifth pressing line is formed between each second inserting tongue and the fourth side panel. Each second inserting tongue includes a second limiting portion, a second middle portion, and a second connecting portion. In the same second inserting tongue, one side of the second middle portion is integrally connected to the second connecting portion, the other side of the second middle portion is integrally connected to the second limiting portion, and a side of the second connecting portion away from the second middle portion is integrally connected to the second side panel. The width of the second limiting portion is smaller than the width of the second connecting portion, and the second middle portion is provided with a second V-shaped groove.

[0010] The first inserting tongue and the second inserting tongue located on the same side of the packaging box are arranged in a one-to-one correspondence. After folding, the inner side surface of each first connecting portion abuts against the outer side surface of each second limiting portion, and the inner side surface of each second connecting portion abuts against the outer side surface of each first limiting portion.

[0011] As an improvement of the present invention, the angle between the two side walls of the first V-shaped groove is 20 degrees to 45 degrees.

[0012] As an improvement of the present invention, the included angles of the first V-shaped groove and the second V-shaped groove are the same.

[0013] As an improvement of the present invention, a front panel is integrally connected to the side of the first side panel away from the second side panel or the side of the fourth side panel away from the third side panel. After folding, the front panel is attached to the outer surface of the first side panel or the fourth side panel.

[0014] As an improvement of the present invention, the first side panel, the second side panel, the third side panel, the fourth side panel, the first folding plate, the second folding plate, the first inserting tongue and the second inserting tongue are integrally connected.

[0015] By adopting the above technical solution, the utility model has the following beneficial effects:

[0016] The first limiting portion on one side of the packaging box of the utility model passes through the corresponding second V-groove and abuts against the second connecting portion to limit the first folding plate and the second folding plate. The packaging operation is simple and the structure is simple, which can be quickly assembled and the work efficiency is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a packaging box of the present invention in an unfolded state (the dotted line shown in the figure is the dividing line between the tongue components, which does not exist in the product for the convenience of describing the structure of the first tongue and the second tongue).

[0018] The corresponding symbols in the figure are as follows:

[0019] 10-first side panel; 20-second side panel;

[0020] 21- third side panel; 22- fourth side panel;

[0021] 23-The first folding plate; 24-The second folding plate;

[0022] 25-first limiting portion; 26-first middle portion;

[0023] 27-first connecting portion; 28-first V-shaped groove;

[0024] 29-second limiting portion; 30-second middle portion;

[0025] 31-second connecting portion; 32-second V-shaped groove;

[0026] 33-Front plate. DETAILED DESCRIPTION

[0027] The utility model is further described below with reference to the accompanying drawings and specific embodiments.

[0028] like Figure 1 As shown, this embodiment provides a packaging box, including a first side panel 10, a second side panel 20, a third side panel 21 and a fourth side panel 22 connected in sequence, the first side panel 10 and the third side panel 21 are arranged opposite to each other, and the second side panel 20 and the fourth side panel 22 are arranged opposite to each other, and a first pressing line is formed between the first side panel 10 and the second side panel 20, between the second side panel 20 and the third side panel 21, and between the third side panel 21 and the fourth side panel 22. By setting the first pressing line, the packaging box is facilitated to be folded and formed. It should be noted that the pressing line process is a conventional pressing line process and is not described in detail here. The first side panel 10 is respectively provided with a first folding plate 23 at both ends along its length direction, and a second pressing line is respectively formed between each first folding plate 23 and the first side panel 10, and a second folding plate 24 is respectively provided at both ends along its length direction, and a third pressing line is respectively formed between each second folding plate 24 and the third side panel 21.

[0029] The second side panel 20 is symmetrically provided with first inserting tongues at both ends along its length direction. A fourth pressure line is formed between each first inserting tongue and the second side panel 20. Each first inserting tongue includes a first limiting portion 25, a first intermediate portion 26 and a first connecting portion 27. In the same first inserting tongue, one side of the first intermediate portion 26 is integrally connected to the first connecting portion 27, and the other side of the first intermediate portion 26 is integrally connected to the first limiting portion 25. The side of the first connecting portion 27 away from the first intermediate portion 26 is integrally connected to the second side panel 20. The width of the first limiting portion 25 is smaller than the width of the first connecting portion 27. The first intermediate portion 26 is provided with a first V-shaped groove 28.

[0030] The fourth side panel 22 is symmetrically provided with second plug tongues at both ends along its length direction, and a fifth pressure line is formed between each second plug tongue and the fourth side panel 22. Each second plug tongue includes a second limiting portion 29, a second intermediate portion 30 and a second connecting portion 31. In the same second plug tongue, one side of the second intermediate portion 30 is integrally connected to the second connecting portion 31, and the other side of the second intermediate portion 30 is integrally connected to the second limiting portion 29. The side of the second connecting portion 31 away from the second intermediate portion 30 is integrally connected to the fourth side panel 22. The width of the second limiting portion 29 is smaller than the width of the second connecting portion 31, and the second intermediate portion 30 is provided with a second V-shaped groove 32.

[0031] For the convenience of description, in this embodiment, the side of each side panel of the folded packaging box facing the inner cavity of the packaging box is the inner side surface, and the other side thereof is the outer side surface.

[0032] The first inserting tongue and the second inserting tongue located on the same side of the packaging box are arranged in a one-to-one correspondence. When folded, the second folding plate 24, the second inserting tongue, the first inserting tongue, and the first folding plate 23 are folded inward 90 degrees in sequence. After each first limiting portion 25 passes through the corresponding second V-shaped groove 32, it abuts against each second connecting portion 31. The inner side surface of each first connecting portion 27 abuts against the outer side surface of each second limiting portion 29, and the inner side surface of each second connecting portion 31 abuts against the outer side surface of each first limiting portion 25.

[0033] The first V-shaped groove 28 and the second V-shaped groove 32 have the same included angle, and the included angle between the two side walls of the first V-shaped groove 28 is 20 degrees to 45 degrees. The side wall of the first V-shaped groove 28 close to the first limiting portion 25 and the end face of the first limiting portion 25 away from the first folding plate 23 are provided with a first right angle, so that it is convenient for the second limiting portion to pass through the first V-shaped groove 28, and the side wall of the second V-shaped groove 32 close to the second limiting portion 29 and the end face of the second limiting portion 29 away from the second folding plate 24 are provided with a second right angle, so that it is convenient for the first limiting portion 25 to pass through the second V-shaped groove 32.

[0034] A front panel 33 is integrally connected to a side of the first side panel 10 away from the second side panel 20 or a side of the fourth side panel 22 away from the third side panel 21. In this embodiment, the front panel 33 is integrally connected to a side of the first side panel 10 away from the second side panel 20. A pressure line is formed between the front panel 33 and the first side panel 10. After folding, the front panel 33 is attached to the outer surface of the fourth side panel 22.

[0035] The first side panel 10, the second side panel 20, the third side panel 21, the fourth side panel 22, the first folding panel 23, the second folding panel 24, the first inserting tongue and the second inserting tongue are integrally connected by the same cardboard. It should be noted that the material of the packaging box of the present invention can be cardboard, or PP hollow board or PE board, which has good toughness and good protection effect.

[0036] When folding, the first side panel 10, the second side panel 20, the third side panel 21, and the fourth side panel 22 are folded inward 90 degrees in sequence along the first pressure line, and the first side panel 10, the second side panel 20, the third side panel 21 and the fourth side panel 22 are connected together accordingly. The second inserting tongue, the first inserting tongue, the second folding plate 24, and the first folding plate 23 are folded inward 90 degrees in sequence, and finally the front panel 33 is attached to the outer surface of the fourth side panel 22. The first limiting portion 25 on one side of the packaging box in this embodiment passes through the corresponding second V-shaped groove 31 and abuts against the second connecting portion 31 to limit the first folding plate and the second folding plate. The packaging operation is simple and the structure is simple, which can be quickly assembled and the work efficiency is relatively high. When not in use, the front panel 33, the first folding plate 23, the second folding plate 24, the second inserting tongue, the first inserting tongue, the first side panel 10, the second side panel 20, the third side panel 2 and the fourth side panel 22 can be unfolded in sequence, so that the entire packaging box is fully unfolded, thereby reducing the occupied space.

[0037] The present invention has been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the above embodiments. Those skilled in the art can make various modifications to the present invention based on the existing technology, and all of these modifications fall within the scope of protection of the present invention.

Claims

1. A packaging box, characterized in that: The frame comprises a first side panel, a second side panel, a third side panel and a fourth side panel which are sequentially connected and located on the same plane after being unfolded, a first pressing line is formed between the first side panel and the second side panel, between the second side panel and the third side panel, and between the third side panel and the fourth side panel, a first folding plate is provided at both ends of the first side panel along the length direction thereof, a second pressing line is formed between each of the first folding plates and the first side panel, a second folding plate is provided at both ends of the third side panel along the length direction thereof, and a third pressing line is formed between each of the second folding plates and the third side panel; The second side plate is symmetrically provided with first plugging tongues at both ends along the length direction thereof, and a fourth pressing line is formed between each of the first plugging tongues and the second side plate, respectively. Each of the first plugging tongues comprises a first limiting portion, a first middle portion and a first connecting portion. In the same first plugging tongue, one side of the first middle portion is integrally connected to the first connecting portion, the other side of the first middle portion is integrally connected to the first limiting portion, a side of the first connecting portion away from the first middle portion is integrally connected to the second side plate, the width of the first limiting portion is smaller than the width of the first connecting portion, and the first middle portion is provided with a first V-shaped groove; The fourth side plate is symmetrically provided with second plug tongues at both ends along the length direction thereof, and a fifth pressing line is formed between each of the second plug tongues and the fourth side plate, respectively. Each of the second plug tongues includes a second limiting portion, a second middle portion, and a second connecting portion. In the same second plug tongue, one side of the second middle portion is integrally connected to the second connecting portion, the other side of the second middle portion is integrally connected to the second limiting portion, and the side of the second connecting portion away from the second middle portion is integrally connected to the second side plate. The width of the second limiting portion is smaller than the width of the second connecting portion, and the second middle portion is provided with a second V-shaped groove; The first plugging tongue and the second plugging tongue located on the same side of the packaging box are arranged in one-to-one correspondence. After folding, the inner side surface of each first connecting portion abuts against the outer side surface of each second limiting portion, and the inner side surface of each second connecting portion abuts against the outer side surface of each first limiting portion.

2. A packaging box according to claim 1, characterized in that: The included angle between the two side walls of the first V-shaped groove is 20 degrees to 45 degrees.

3. A packaging box according to claim 1, characterized in that: The first V-shaped groove and the second V-shaped groove have the same included angle.

4. A packaging box according to claim 1, characterized in that: A side of the first side panel away from the second side panel or a side of the fourth side panel away from the third side panel is integrally connected with a front panel, and after folding, the front panel is attached to an outer surface of the first side panel or the fourth side panel.

5. A packaging box according to claim 1, characterized in that: The first side panel, the second side panel, the third side panel, the fourth side panel, the first folding panel, the second folding panel, the first inserting tongue and the second inserting tongue are integrally connected.

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