Corrugated carton bottom self-locking structure

Abstract

The utility model relates to the field of corrugated cartons, in particular to a corrugated carton bottom self-locking structure which comprises a carton body and a protective sleeve, a limiting plate is fixedly connected to the upper end of the carton body, side plates are arranged on the left side and the right side of the lower end of the carton body, a bottom plate is arranged on the side of the lower end of the carton body, and the protective sleeve is connected with the carton body in a sleeved mode. The upper end of the surface of the protective sleeve is connected with a box cover in a sleeved mode, an inserting plate is installed on the side of the surface of the bottom plate, fixing blocks are arranged at the two ends of the inserting plate, connecting plates are arranged at the left end and the right end of the bottom plate, limiting blocks are arranged at the ends, away from the bottom plate, of the connecting plates, and an installing groove is formed in the side of the lower end face of the box body. The inserting plate is fixed in the mounting groove through the fixing block on the side of the inserting plate, so that the bottom plate fixedly mounted with the inserting plate is fixed below the box body, the bottom self-locking of the corrugated box is realized, and the production cost increase caused by mounting a metal self-locking piece is avoided through an integral forming processing technology.

Description

Technical Field

[0001] The utility model relates to the field of corrugated paper boxes, in particular to a self-locking bottom structure of a corrugated paper box. Background Art

[0002] When corrugated paper is processed into various products, it is usually sealed with tape or glue. During the unsealing process, the tape can easily damage the corrugated paper structure, making it impossible to reuse the corrugated paper. In order to increase the reuse rate of corrugated paper, it is usually necessary to design a self-locking structure to reduce the use of glue.

[0003] Existing corrugated boxes usually have metal parts added to the outside of the box body. The addition of metal parts makes the actual production process more complicated, which in turn increases the production cost. At the same time, the lack of protective structure makes the corrugated boxes easily damaged during use, making them unable to be reused.

[0004] Therefore, in order to address the problem that the above-mentioned existing corrugated cardboard boxes lack a self-locking bottom structure and a protective structure, a self-locking bottom structure of a corrugated cardboard box can be designed. The self-locking of the corrugated cardboard box can be achieved through the cooperation of the plug plate and the slot. At the same time, a detachable protective structure is provided to cushion the outside of the box body, thereby reducing the damage of the corrugated cardboard box caused by external forces. Utility Model Content

[0005] In order to overcome the problems that existing corrugated boxes lack a self-locking bottom structure and a protective structure.

[0006] The technical solution of the utility model is: a self-locking bottom structure of a corrugated cardboard box, comprising a box body and a protective cover, the upper end of the box body is fixedly connected to a limit plate, side panels are provided on the left and right sides of the lower end of the box body, a bottom plate is provided on the side of the lower end of the box body, the protective cover and the box body are sleeved, a box cover is sleeved on the upper end of the surface of the protective cover, an inserting plate is installed on the side of the surface of the bottom plate, fixed blocks are provided at both ends of the inserting plate, connecting plates are provided on the left and right ends of the bottom plate, a limiting block is provided on the end of the connecting plate away from the bottom plate, and a mounting groove is provided on the side of the lower end surface of the box body.

[0007] Preferably, the side panels and the bottom panel are connected to the box body by folding and integrally connecting the side panels, the bottom panel and the box body by pressing and integrally connecting the side panels, the bottom panel and the box body by pressing and reducing the use of materials such as glue.

[0008] Preferably, the plug plate is adapted to the mounting slot, a groove is provided on the inner side of the mounting slot, the fixing block is connected by snapping the groove and the mounting slot, and the self-locking bottom of the box is achieved through the cooperation between the plug plate and the mounting slot.

[0009] Preferably, three limit blocks are arranged at equal intervals, and the limit blocks are adapted to the protective cover. By cooperating with the limit blocks and the limit plates, the protective cover can be conveniently disassembled and installed.

[0010] Preferably, the upper end of the bottom plate is fixedly connected with a supporting foot pad, and four supporting foot pads are provided. By providing the supporting foot pads, the stability of the boxes when stacked is improved.

[0011] Preferably, the protective cover is made of PE material, and a protective layer is provided inside the protective cover, which is made of pearl cotton. The buffering function of the protective cover is achieved by the PE material and the filled pearl cotton.

[0012] Preferably, waist-shaped holes are provided at both the left and right ends of the protective cover, and plastic rings are installed inside the waist-shaped holes. The waist-shaped holes facilitate the transportation of the box.

[0013] Beneficial effects of the utility model:

[0014] 1. The self-locking bottom structure of the corrugated cardboard box is realized by providing a mounting groove at the lower end of the box body. The inserting plate is fixed in the mounting groove by using the fixing block on the side of the inserting plate, thereby fixing the bottom plate fixed with the inserting plate to the bottom of the box body, thereby realizing the self-locking bottom of the corrugated cardboard box. The one-piece molding process avoids the increase in production costs caused by the installation of metal self-locking parts.

[0015] 2. The self-locking bottom structure of the corrugated cardboard box increases the protective effect and reduces external damage to the box by sleeved with a protective cover with a buffering effect on the outside of the box. At the same time, when the protective cover is damaged, the connection plate can be adjusted to release the limit block on the protective cover, so that the protective cover can be disassembled and replaced, thereby increasing the service life of the corrugated cardboard box and improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The following is a schematic diagram of the overall structure of the self-locking bottom structure of the corrugated paper box of this utility model. Figure 1 ;

[0017] Figure 2 The following is a schematic diagram of the overall structure of the self-locking bottom structure of the corrugated paper box of this utility model. Figure 2 ;

[0018] Figure 3 The following is a schematic diagram of the overall structure of the self-locking bottom structure of the corrugated paper box of this utility model. Figure 3 ;

[0019] Figure 4 Shown is a cross-sectional schematic diagram of the self-locking bottom structure protective cover of the corrugated paper box of the present invention.

[0020] Explanation of the accompanying reference numerals: 1. Box body; 11. Mounting groove; 2. Limiting plate; 3. Protective cover; 31. Protective layer; 32. Waist-shaped hole; 33. Plastic ring; 4. Box cover; 5. Side panel; 6. Bottom plate; 61. Support foot pad; 7. Insert plate; 71. Fixing block; 81. Connecting plate; 82. Limiting block. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] See also Figure 1-Figure 4 The utility model provides an embodiment: a self-locking bottom structure of a corrugated cardboard box, comprising a box body 1 and a protective cover 3. The upper end of the box body 1 is fixedly connected to a limit plate 2. Side panels 5 are provided on the left and right sides of the lower end of the box body 1. A bottom plate 6 is provided on the side of the lower end of the box body 1. The protective cover 3 and the box body 1 are sleeved. The upper end of the surface of the protective cover 3 is sleeved with a box cover 4. An inserting plate 7 is installed on the side of the surface of the bottom plate 6. Fixed blocks 71 are provided at both ends of the inserting plate 7. Connecting plates 81 are provided on the left and right ends of the bottom plate 6. A limiting block 82 is provided on the end of the connecting plate 81 away from the bottom plate 6. A mounting groove 11 is provided on the side of the lower end surface of the box body 1. The self-locking bottom of the box body 1 is realized by the side panels 5 and the bottom plate 6, in cooperation with the inserting plate 7.

[0023] See also Figure 1 and Figure 2 In this embodiment, the side panels 5 and the bottom panel 6 are integrally connected to the box body 1 by folding the pressing line. The upper end of the bottom panel 6 is fixedly connected to a supporting foot pad 61. Four supporting foot pads 61 are provided. The plug-in plate 7 is adapted to the mounting groove 11. A groove is provided on the inner side of the mounting groove 11. The fixing block 71 is engaged with the mounting groove 11 through the groove. Through the cooperation of the plug-in plate 7 and the mounting groove 11, the bottom panel 6 is fixed to the bottom of the box body 1, thereby realizing the self-locking of the box body 1.

[0024] See also Figure 1 、 Figure 3 and Figure 4 In this embodiment, waist-shaped holes 32 are provided at the left and right ends of the protective cover 3, and a plastic ring 33 is installed on the inner side of the waist-shaped hole 32. The protective cover 3 is made of PE material, and a protective layer 31 is provided inside the protective cover 3. The protective layer 31 is made of pearl cotton material. Three limit blocks 82 are evenly spaced and matched with the protective cover 3. The buffering and shock absorption of the protective cover 3 are achieved by the PE material and the filled pearl cotton. At the same time, the limit blocks 82 are used to conveniently realize the disassembly and installation of the protective cover 3.

[0025] When working, first flip the side panel 5 to the bottom of the box body 1, and then flip the bottom plate 6 to the bottom of the box body 1. At this time, the plug plate 7 installed on the bottom plate 6 is inserted into the inner side of the mounting groove 11 that matches it, and cooperates with the fixing block 71 and the groove inside the mounting groove 11 to fix the bottom plate 6 to the bottom of the box body 1 to achieve a self-locking bottom of the box body 1. At the same time, adjust the connecting plate 81, adjust the limit block 82 to the bottom of the protective cover 3, and cooperate with the limit plate 2 at the upper end of the box body 1 to fix the protective cover 3 to the outside of the box body 1. When the protective cover 3 is damaged and needs to be replaced, the connecting plate 81 can be flipped to release the limit of the limit block 82 on the protective cover 3, and then the protective cover 3 can be disassembled and replaced.

[0026] Through the above steps, the bottom plate 6 can be fixed to the bottom of the box body 1 through the insertion plate 7, the fixing block 71 and the installation groove 11, thereby realizing the self-locking bottom of the corrugated cardboard box. At the same time, a protective cover 3 with a buffering and shock-absorbing effect is provided to protect the box body 1, and a limiting structure is designed to facilitate the disassembly and replacement of the protective cover 3, so as to solve the problem that the existing corrugated cardboard box lacks a self-locking bottom structure and a protective structure.

Claims

1. A self-locking bottom structure for a corrugated paper box, comprising a box body (1), characterized in that: The invention also includes a protective cover (3), the upper end of the box body (1) is fixedly connected to the limit plate (2), the left and right sides of the lower end of the box body (1) are provided with side plates (5), the side of the lower end of the box body (1) is provided with a bottom plate (6), the protective cover (3) and the box body (1) are sleeved, the upper end of the surface of the protective cover (3) is sleeved with a box cover (4), an inserting plate (7) is installed on the side of the surface of the bottom plate (6), both ends of the inserting plate (7) are provided with fixing blocks (71), the left and right ends of the bottom plate (6) are provided with connecting plates (81), and a limiting block (82) is provided at one end of the connecting plate (81) away from the bottom plate (6), and a mounting groove (11) is provided on the side of the lower end surface of the box body (1).

2. The self-locking bottom structure of a corrugated box according to claim 1, characterized in that: The side panels (5) and the bottom panel (6) are connected to the box body (1) by folding and pressing.

3. The self-locking bottom structure of a corrugated box according to claim 1, characterized in that: The inserting plate (7) is adapted to the mounting groove (11), a groove is provided inside the mounting groove (11), and the fixing block (71) is connected to the mounting groove (11) by snapping together the groove.

4. The self-locking bottom structure of a corrugated box according to claim 1, characterized in that: Three limiting blocks (82) are arranged at equal intervals, and the limiting blocks (82) and the protective cover (3) are adapted to each other.

5. The self-locking bottom structure of a corrugated paper box according to claim 3, characterized in that: The upper end of the bottom plate (6) is fixedly connected with a supporting foot pad (61), and four supporting foot pads (61) are provided.

6. The self-locking bottom structure of a corrugated box according to claim 1, characterized in that: The protective cover (3) is made of PE material, and a protective layer (31) is provided inside the protective cover (3), and the protective layer (31) is made of pearl cotton material.

7. The self-locking bottom structure of a corrugated paper box according to claim 6, characterized in that: The left and right ends of the protective cover (3) are both provided with waist-shaped holes (32), and the inner sides of the waist-shaped holes (32) are provided with plastic rings (33).

Images