Self-locking type packaging carton

Abstract

The utility model discloses a self-locking type packaging carton, which belongs to the technical field of packaging products, the packaging carton is formed by integrally cutting corrugated paper and folding the cut corrugated paper through creases, the packaging carton comprises side plates, a bottom plate and a top plate which can be connected in a bending mode, the side plates comprise a first side plate and a third side plate which are oppositely arranged after being folded, and the bottom plate is connected with the top plate. The lower end of the third side plate is connected with a third bottom plate in a bendable mode, a first inserting groove is formed in the lower end of the third bottom plate, the lower end of the first side plate is connected with a first bottom plate in a bendable mode, and a first inserting tongue matched with the first inserting groove is arranged at the lower end of the first bottom plate. Self-locking of the carton can be completed without tools such as adhesive tape and ropes, packaging efficiency is improved while packaging cost is reduced, and the carton can be used repeatedly.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging products, and in particular relates to a self-locking packaging carton. Background Art

[0002] As a common outer material for commodity packaging and article protection, cartons are popular for their low cost and light weight. In today's market, with the rapid development of the express delivery industry, the demand for cartons is extremely large. The packaging and storage of various items cannot be separated from the use of cartons, which bear the heavy responsibility of containing and protecting products.

[0003] In the express logistics industry, plastic tape has become a common sealing method to facilitate the packaging of cartons. However, the use of tape not only increases the cost of sealing, but also affects the efficiency of packaging. And when unpacking the carton, the tape needs to be torn off, which can easily damage the carton, thus affecting the reuse of the carton. Summary of the invention

[0004] In view of the problems existing in the prior art, the utility model provides a self-locking packaging carton, which can complete the self-locking of the carton without relying on tools such as tapes and ropes, thereby reducing packaging costs while improving packaging efficiency, and also allowing the carton to be reused multiple times.

[0005] The utility model is implemented as follows: a self-locking packaging carton, which is formed by cutting corrugated paper into one piece and folding it through creases, and comprises side panels, a bottom panel and a top panel that can be folded and connected, wherein the side panels comprise a first side panel and a third side panel that are arranged opposite to each other after folding, the lower end of the third side panel can be folded and connected to the third bottom panel, the lower end of the third bottom panel is provided with a first slot, the lower end of the first side panel can be folded and connected to the first bottom panel, and the lower end of the first bottom panel is provided with a first tongue that matches the first slot.

[0006] Furthermore, the upper end of the third side panel can be bent and connected to the third top panel, a second slot is provided at the fold between the third side panel and the third top panel, the upper end of the first side panel can be bent and connected to the first top panel, and the upper end of the first top panel can be bent and provided with a second tongue matching the second slot.

[0007] Furthermore, a third slot is provided at the fold between the second inserting tongue and the first top plate, and a third inserting tongue matching with the third slot is provided on the third side plate located at the position of the second slot.

[0008] Furthermore, the cross-sectional area of ​​the first bottom plate is a trapezoidal structure, and the long side of the first bottom plate faces the first side plate.

[0009] Furthermore, the side panel also includes a second side panel and a fourth side panel, the lower end of the second side panel can be bent and connected to the second bottom panel, the lower end of the fourth side panel can be bent and connected to the fourth bottom panel, and the sides of the second bottom panel and the fourth bottom panel facing the third bottom panel are both provided with a notched structure corresponding to the oblique edge of the first bottom panel.

[0010] Furthermore, the lower ends of the second bottom plate and the fourth bottom plate are both provided with plug-in parts.

[0011] Furthermore, the upper end of the second side panel can be bent and connected to the second top panel, the upper end of the fourth side panel can be bent and connected to the fourth top panel, and the second top panel and the fourth top panel are both provided with notches on their sides facing the third top panel.

[0012] Furthermore, two first inserting tongues are provided, symmetrically arranged on the short sides of the first bottom plate, and two first slots are provided.

[0013] Furthermore, two second inserting tongues and two second slots are provided.

[0014] Furthermore, two third inserting tongues and two third slots are provided.

[0015] The utility model has the following advantages and technical effects: due to the adoption of the above technical scheme, the carton can be self-locked without relying on tools such as tapes and ropes, thereby reducing the packaging cost while improving the packaging efficiency, and the carton can be reused multiple times.

[0016] The third bottom plate is pressed by the second bottom plate and the fourth bottom plate, and the self-locking connection of the bottom plate is achieved by inserting the first plug tongue into the first slot, and the self-locking connection of the top plate is achieved by the cooperation between the second slot and the second plug tongue and the cooperation between the third slot and the third plug tongue. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a plan view of a packaging carton provided by an embodiment of the utility model.

[0018] In the figure: 1, first side panel; 2, second side panel; 3, third side panel; 4, fourth side panel; 5, first bottom panel; 6, second bottom panel; 7, third bottom panel; 8, fourth bottom panel; 9, first top panel; 10, second top panel; 11, third top panel; 12, fourth top panel; 13, first slot; 14, first plug tongue; 15, second slot; 16, second plug tongue; 17, third slot; 18, third plug tongue; 19, notched structure; 20, plug-in portion; 21, notched groove. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0020] It should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0021] like Figure 1 As shown, the present application provides a self-locking packaging carton, which is formed by cutting corrugated paper into one piece and folding it through creases, and includes a side panel, a bottom panel and a top panel that can be folded and connected, wherein the side panel includes a first side panel 1 and a third side panel 3 that are arranged opposite to each other after folding, the lower end of the third side panel 3 can be folded and connected to a third bottom panel 7, the lower end of the third bottom panel 7 is provided with a first slot 13, the lower end of the first side panel 1 can be folded and connected to a first bottom panel 5, and the lower end of the first bottom panel 5 is provided with a first plug 14 that matches the first slot 13. Preferably, the first plug 14 is provided with two, symmetrically arranged on the short side of the first bottom panel 5, and the first slot 13 is provided with two.

[0022] The upper end of the third side panel 3 can be bent and connected to the third top panel 11, and a second slot 15 is provided at the fold between the third side panel 3 and the third top panel 11. The upper end of the first side panel 1 can be bent and connected to the first top panel 9, and the upper end of the first top panel 9 can be bent and provided with a second plug tongue 16 matched with the second slot 15. Preferably, two second plug tongues 16 and two second slots 15 are provided.

[0023] A third slot 17 is provided at the fold between the second inserting tongue 16 and the first top plate 9, and a third inserting tongue 18 matching the third slot 17 is provided on the third side plate 3 at the position of the second slot 15. Preferably, two third inserting tongues 18 and two third slots 17 are provided.

[0024] Preferably, the cross-sectional area of ​​the first bottom plate 5 is a trapezoidal structure, and the long side of the first bottom plate 5 faces the first side plate 1 .

[0025] The side panels further include a second side panel 2 and a fourth side panel 4, the lower end of the second side panel 2 can be bent and connected to the second bottom panel 6, the lower end of the fourth side panel 4 can be bent and connected to the fourth bottom panel 8, and the sides of the second bottom panel 6 and the fourth bottom panel 8 facing the third bottom panel 7 are both provided with a missing corner structure 19 corresponding to the oblique side of the first bottom panel 5. The lower ends of the second bottom panel 6 and the fourth bottom panel 8 are both provided with a plug-in portion 20.

[0026] The upper end of the second side panel 2 can be bent and connected to the second top panel 10 , and the upper end of the fourth side panel 4 can be bent and connected to the fourth top panel 12 . The sides of the second top panel 10 and the fourth top panel 12 facing the third top panel 11 are both provided with notch grooves 21 .

[0027] By adopting the above technical solution, the carton can be self-locked without relying on tools such as tapes and ropes, thereby reducing the packaging cost and improving the packaging efficiency, and the carton can be reused multiple times.

[0028] The third bottom plate 7 is pressed by the second bottom plate 6 and the fourth bottom plate 8, and the self-locking connection of the bottom plate is achieved by inserting the first plug tongue 14 into the first slot 13. The self-locking connection of the top plate is achieved by the cooperation between the second slot 15 and the second plug tongue 16 and the cooperation between the third slot 17 and the third plug tongue 18.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-locking packaging carton, characterized in that: The packaging carton is formed by cutting corrugated paper in one piece and folding it through creases, and includes side panels, a bottom panel and a top panel that can be bent and connected, wherein the side panels include a first side panel and a third side panel that are arranged opposite to each other after folding, the lower end of the third side panel can be bent and connected to the third bottom panel, the lower end of the third bottom panel is provided with a first slot, the lower end of the first side panel can be bent and connected to the first bottom panel, and the lower end of the first bottom panel is provided with a first tongue that matches the first slot.

2. The self-locking packaging carton according to claim 1, characterized in that: The upper end of the third side panel can be bent and connected to the third top panel, a second slot is provided at the fold between the third side panel and the third top panel, the upper end of the first side panel can be bent and connected to the first top panel, and the upper end of the first top panel can be bent and provided with a second tongue matching the second slot.

3. The self-locking packaging carton according to claim 2, characterized in that: A third slot is provided at the fold between the second inserting tongue and the first top plate, and a third inserting tongue matched with the third slot is provided on the third side plate located at the position of the second slot.

4. The self-locking packaging carton according to claim 1, characterized in that: The cross-sectional area of ​​the first bottom plate is a trapezoidal structure, and the long side of the first bottom plate faces the first side plate.

5. The self-locking packaging carton according to claim 1, characterized in that: The side panel also includes a second side panel and a fourth side panel, the lower end of the second side panel can be bent and connected to the second bottom panel, the lower end of the fourth side panel can be bent and connected to the fourth bottom panel, and the sides of the second bottom panel and the fourth bottom panel facing the third bottom panel are both provided with a notched structure corresponding to the oblique edge of the first bottom panel.

6. The self-locking packaging carton according to claim 5, characterized in that: The lower ends of the second bottom plate and the fourth bottom plate are both provided with plug-in parts.

7. The self-locking packaging carton according to claim 5, characterized in that: The upper end of the second side plate can be bent and connected to the second top plate, the upper end of the fourth side plate can be bent and connected to the fourth top plate, and the sides of the second top plate and the fourth top plate facing the third top plate are both provided with notches.

8. The self-locking packaging carton according to claim 1, characterized in that: There are two first inserting tongues, which are symmetrically arranged on the short sides of the first bottom plate, and there are two first slots.

9. The self-locking packaging carton according to claim 2, characterized in that: There are two second inserting tongues and two second slots.

10. The self-locking packaging carton according to claim 3, characterized in that: There are two third inserting tongues and two third slots.

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