A carton facilitating multi-layer stacking

Abstract

The utility model discloses a kind of carton of being convenient for multilayer stacking, belong to carton technical field, including four side plates, bottom plate and cover plate, cover plate four corners are equipped with the upper right-angle seat with recessed cavity, bottom plate four corners are equipped with the lower right-angle seat with boss, stack when upper right-angle seat covers lower right-angle seat, boss and the slope of recessed cavity are adapted to each other.Simultaneously, through the structure such as the side plate connection of edge and U type clamping slot clamping, elastic limiting block and jack cooperation, guide slope guides automatic alignment, clamping female seat and sub-piece elastic clamping and edge strip, the accurate alignment and stable stacking of upper and lower box body are realized, stacking efficiency and stability are improved, and unified management of empty box component is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of cardboard box technology, and in particular relates to a cardboard box that is easy to stack in multiple layers. Background Technology

[0002] In the stacking of cardboard boxes in logistics warehousing, precise center alignment of the upper and lower boxes is a core technical requirement to ensure stacking stability and improve space utilization; existing stacking solutions for heavy-duty boxes are mainly divided into two categories:

[0003] The first type of solution lacks a positioning and stacking device, relying on visual observation and adjustment of the container position during forklift handling, which can only achieve basic alignment. Because this solution lacks an active guiding structure, there is a risk of the upper and lower containers sliding relative to each other and collapsing during transport vibrations.

[0004] The second type of solution incorporates auxiliary stacking structures such as snap-fit ​​and convex-concave joints. These structures improve stacking stability through limiting and preventing displacement, thus solving the problem of cargo displacement caused by transportation vibrations. However, these structures are mostly passive limiting designs. In actual forklift operation, the position of the box still needs to be repeatedly adjusted to correct alignment deviations, failing to achieve the efficient goal of "automatic alignment." The cost of manual intervention and time remains high.

[0005] In addition, after disassembly of existing cardboard boxes under empty load, each component (such as top and bottom covers, partitions, side panels, etc.) is usually stored separately to compress space, lacking an integrated storage structure. The disassembled components are prone to mixed use and confusion of specifications, which are material management problems. When reassembling the boxes, each component needs to be matched one by one, which is inefficient. Therefore, designers need to develop a cardboard box structure with high alignment efficiency, high stacking stability, and the ability to uniformly store components in the empty box state. Utility Model Content

[0006] To address the aforementioned problems, the purpose of this invention is to provide a cardboard box that facilitates multi-layer stacking, has high alignment efficiency and high stacking stability, and can achieve unified storage of components even when the box is empty.

[0007] The technical solution of this utility model is as follows:

[0008] A cardboard box that is easy to stack in multiple layers includes four side panels, a bottom panel and a cover panel. The cover panel is provided with upper right-angle seats at each of its four corners, and the bottom panel is provided with lower right-angle seats at each of its four corners.

[0009] Each of the upper right-angle seats has a recessed cavity facing the center of the cover plate, and each of the lower right-angle seats has a downwardly extending boss, the outer side wall slope of the boss being adapted to the inner side wall slope of the recessed cavity.

[0010] In the stacked state, the upper right-angle seat covers the outer side of the lower right-angle seat. Through the embracing coverage of the boss by the cavity and the inclined surface adaptation, the horizontal displacement of the upper and lower boxes is forcibly constrained, realizing automatic center alignment in the initial stage of stacking.

[0011] Furthermore, the bottom plate and cover plate of the box body both have edging, and the cavity formed between the two edgings can accommodate four edging plates plus four edge strips; the lower end of the upper right-angle seat and the upper end of the lower right-angle seat are both bent inward to form a U-shaped slot, and the edging is embedded and engaged in the U-shaped slot, realizing quick assembly and disassembly by hand.

[0012] Furthermore, the outer wall slope of the boss has a mounting groove, in which an elastic limiting block is installed. The inner wall slope of the cavity has an insertion hole that mates with the elastic limiting block. The elastic limiting block is an integrally formed bent elastic structure, including a limiting trigger head that protrudes from the outer wall slope of the boss in normal operation. Its lower end face is a slope, and the upper end face of the limiting trigger head has a U-shaped continuously bent elastic wall. The upper end of the elastic wall away from the limiting trigger head has a connecting part, and the connecting part is provided with a mounting post. The mounting post protrudes from the mounting groove and is locked to the horizontal bearing surface of the lower right-angle seat by fasteners. The elastic limiting block performs a three-stage action: "sloping surface trigger - elastic retraction - precise locking". In the initial stacking stage, the cavity slope squeezes the slope of the limiting trigger head, driving the elastic block to retract and avoid. After alignment, the elastic block uses its own rebound force to lock into the insertion hole, replacing manual alignment and achieving "automatic locking without intervention", thus counteracting the tendency of transportation vibration displacement.

[0013] Furthermore, the two adjacent inner walls of the concave cavity are respectively provided with a first guide slope and a second guide slope; the two adjacent outer walls of the protrusion are respectively provided with a third guide slope and a fourth guide slope. The first guide slope is parallel to the third guide slope, and the second guide slope is parallel to the fourth guide slope, so as to guide the automatic alignment during stacking. The double slope group forms a cross guide constraint. Even if there is a deviation in the forklift alignment, the upper and lower slopes can still forcibly correct the position of the box through the "sliding-correction-alignment" process during stacking.

[0014] Furthermore, the lower end face of the upper right-angle seat and the upper end face of the lower right-angle seat are respectively provided with corresponding upper grooves and lower grooves; a snap-fit ​​female seat is fixed on the bottom surface of the lower groove, the snap-fit ​​female seat includes a connecting plate and a snap-fit ​​piece at its lower end, the two ends of the snap-fit ​​piece are suspended to form a snap-fit ​​space; a snap-fit ​​male component is fixed on the bottom surface of the upper groove, the snap-fit ​​male component is an insert block that is adapted to be inserted into the snap-fit ​​space and forms an elastic snap-fit.

[0015] Furthermore, adjacent side panels of the four side panels are connected by an edge banding strip. The edge banding strip includes a first vertical strip and a second vertical strip connected vertically. The second vertical strip extends inward with an L-shaped mounting strip. The vertical section of the mounting strip is parallel to the first vertical strip, and the horizontal section is parallel to the second vertical strip. The mounting strip forms a slot with the first vertical strip and the second vertical strip, respectively. The ends of two adjacent side panels are inserted into the slots. The same edge banding strip is compatible with the connection of adjacent side panels, reducing the number of components. After disassembly, the side panels can be pulled out along the slot direction and uniformly stored in the perimeter of the base plate / cover plate.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. The inclined surface adaptation structure of the upper right-angle seat cavity and the lower right-angle seat boss of this utility model achieves automatic center alignment by wrapping around the core during stacking, solving the problem of large visual alignment deviation in traditional methods and improving stacking efficiency.

[0018] 2. The elastic limiting block of this utility model forms a stable lock by cooperating with the cavity insertion hole through a three-stage action of triggering, retraction and locking, which counteracts transportation vibration and solves the problem of easy scattering when stacked.

[0019] 3. The side panels of this utility model are detachably connected by edge banding strips. After all the side panels are disassembled, they are placed between the bottom plate and the cover plate, and then connected by the upper groove snap-fit ​​sub-part and the lower groove snap-fit ​​female seat to achieve integrated storage of empty box components.

[0020] 4. The double guide inclined plane assembly and elastic snap-fit ​​structure of this utility model are adapted to operational deviations. Through sliding correction and angle absorption, the trouble of repeated adjustments is solved, and the adaptability of stacking scenarios is improved. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the stacking structure of two cardboard boxes according to this utility model.

[0022] Figure 2 This utility model Figure 1 A magnified structural diagram at point A.

[0023] Figure 3 This is a schematic diagram of the upper right-angle seat structure of this utility model.

[0024] Figure 4 This is a schematic diagram of the lower right-angle seat structure of this utility model.

[0025] Figure 5 This is a schematic diagram of the elastic limiting block structure of this utility model.

[0026] Figure 6 This is a schematic diagram of the installation of the edge banding strip and side panel of this utility model.

[0027] Figure 7This is a schematic diagram of the empty box storage structure of this utility model.

[0028] Figure 8 This utility model Figure 7 A magnified structural diagram at point B.

[0029] Reference numerals: 1. Side plate; 2. Base plate; 3. Cover plate; 4. Upper right-angle seat; 4-1. Cavity; 4-1.1. Insertion hole; 4-1.2. First guide slope; 4-1.3. Second guide slope; 4-2. U-shaped slot; 4-3. Upper groove; 4-3.1. Snap-fit ​​component; 5. Lower right-angle seat; 5-1. Boss; 5-2. Lower groove; 5-2.1. Snap-fit ​​female seat; 6. Elastic limit block; 6-1. Limit trigger head; 6-2. Elastic wall; 6-3. Connecting part; 7. Edge band; 7-1. Mounting strip. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] like Figures 1 to 8 As shown, a carton that facilitates multi-layer stacking includes four side panels 1, a bottom panel 2, and a cover panel 3. The cover panel 3 has upper right-angle seats 4 at each of its four corners, and the bottom panel 2 has lower right-angle seats 5 at each of its four corners. Each upper right-angle seat 4 has a cavity 4-1 facing the center of the cover panel 3, and each lower right-angle seat 5 has a downwardly extending boss 5-1. The outer side slope of the boss 5-1 is adapted to the inner side slope of the cavity 4-1. In the stacked state, the upper right-angle seats 4 cover the outer side of the lower right-angle seats 5. Through the embracing coverage of the boss 5-1 by the cavity 4-1 and the adaptation of the slope, the horizontal displacement of the upper and lower boxes is forcibly constrained, and automatic center alignment is achieved in the initial stage of stacking.

[0032] Furthermore, both the bottom plate 2 and the cover plate 3 of the box have edging, and the cavity formed between the two edgings can accommodate four edging plates plus four edge strips 7; the lower end of the upper right-angle seat 4 and the upper end of the lower right-angle seat 5 are bent inward to form a U-shaped slot 4-2, and the edging is embedded and engaged in the U-shaped slot 4-2, realizing quick assembly and disassembly by hand.

[0033] Furthermore, the outer wall slope of the boss 5-1 has a mounting groove, in which an elastic limiting block 6 is installed. The inner wall slope of the cavity 4-1 has an insertion hole 4-1.1 that mates with the elastic limiting block 6. The elastic limiting block 6 is an integrally formed bent elastic structure, including a limiting trigger head 6-1 that protrudes from the outer wall slope of the boss 5-1 in its normal state. Its lower end face is a slope, and the upper end face of the limiting trigger head 6-1 has a U-shaped continuously bent elastic wall 6-2. The upper end of the elastic wall 6-2 away from the limiting trigger head 6-1 has a connecting part 6-3. The connecting part 6-3 is provided with a mounting post, which extends out of the mounting groove and is locked to the horizontal bearing surface of the lower right-angle seat 5 by screws (this surface is the contact surface after the lower right-angle seat 5 and the base plate 2 are engaged). The elastic limiting block 6 has a three-stage action of "sloping surface triggering - elastic retraction - precise locking": In the initial stacking stage, the sloping surface of the cavity 4-1 squeezes the sloping surface of the limiting trigger head 6-1, driving the elastic block to retract and avoid; after alignment, the elastic block uses its own rebound force to lock into the insertion hole 4-1.1, replacing manual alignment and realizing "automatic locking without intervention", which counteracts the tendency of transportation vibration displacement.

[0034] Furthermore, the two adjacent inner walls of the cavity 4-1 are respectively provided with a first guide slope 4-1.2 and a second guide slope 4-1.3; the two adjacent outer walls of the boss 5-1 are respectively provided with a third guide slope and a fourth guide slope. The first guide slope 4-1.2 is parallel to the third guide slope, and the second guide slope 4-1.3 is parallel to the fourth guide slope, so as to guide the automatic alignment during stacking. The double slope group forms a cross guide constraint. Even if there is a deviation in the forklift alignment, the upper and lower slopes can still forcibly correct the position of the box through the "sliding-correction-alignment" process during stacking.

[0035] Furthermore, the lower end face of the upper right-angle seat 4 and the upper end face of the lower right-angle seat 5 are respectively provided with corresponding upper groove 4-3 and lower groove 5-2; the bottom surface of the lower groove 5-2 is fixed with a snap-fit ​​female seat 5-2.1, which includes a connecting plate and a snap-fit ​​piece at its lower end, with both ends of the snap-fit ​​piece suspended to form a snap-fit ​​space; the bottom surface of the upper groove 4-3 is fixed with a snap-fit ​​male part 4-3.1, which is an insert block that is adapted to be inserted into the snap-fit ​​space and forms an elastic snap-fit; both the snap-fit ​​female seat 5-2.1 and the snap-fit ​​male part 4-3.1 are connected to the bottom surfaces of the lower groove 5-2 and the upper groove 4-3 by screws.

[0036] Furthermore, adjacent side panels 1 of the four side panels 1 are connected by an edge banding strip 7. The edge banding strip 7 includes a first vertical strip and a second vertical strip connected vertically. The second vertical strip extends inward with an L-shaped mounting strip 7-1. The vertical section of the mounting strip 7-1 is parallel to the first vertical strip, and the horizontal section is parallel to the second vertical strip. The mounting strip 7-1 forms a slot with the first vertical strip and the second vertical strip, respectively. The ends of two adjacent side panels 1 are inserted into the slots. The same edge banding strip 7 is compatible with the connection of adjacent side panels 1, reducing the types of parts. After disassembly, the side panels 1 can be pulled out along the slot direction and uniformly stored in the perimeter space between the bottom plate 2 and the cover plate 3. Then, they are connected by the upper groove 4-3 to the sub-part 4-3.1 and the lower groove 5-2 to the female seat 5-2.1, realizing the integrated storage of empty box parts, solving the problem of mixed packaging of loose parts, and saving storage space.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cardboard box that facilitates multi-layer stacking, comprising four side panels, a bottom panel, and a cover panel, characterized in that, The cover plate is provided with upper right-angle seats at each of its four corners, and the bottom plate is provided with lower right-angle seats at each of its four corners; Each of the upper right-angle seats has a recessed cavity facing the center of the cover plate, and each of the lower right-angle seats has a downwardly extending boss, the outer side wall slope of the boss being adapted to the inner side wall slope of the recessed cavity. In the stacked state, the upper right-angle seat covers the outside of the lower right-angle seat; The outer side wall of the boss has a mounting groove, and an elastic limiting block is installed in the mounting groove. The inner side wall of the cavity has an insertion hole that mates with the elastic limiting block.

2. A cardboard box that facilitates multi-layer stacking according to claim 1, characterized in that, Both the base plate and the cover plate have edging. The lower end of the upper right-angle seat and the upper end of the lower right-angle seat are bent inward to form a U-shaped groove. The edging is embedded and engaged in the U-shaped groove.

3. A cardboard box that facilitates multi-layer stacking according to claim 1, characterized in that, The elastic limiting block is an integrally formed bent elastic structure, including a limiting trigger head that protrudes from the outer wall slope of the boss in normal state. Its lower end face is a slope, and the upper end face of the limiting trigger head has a U-shaped continuously bent elastic wall. The upper end of the elastic wall away from the limiting trigger head has a connecting part. The connecting part is provided with a mounting post. The mounting post passes through the mounting groove and is locked to the horizontal bearing surface of the lower right-angle seat by fasteners.

4. A cardboard box that facilitates multi-layer stacking according to claim 1, characterized in that, The two adjacent inner walls of the concave cavity are respectively provided with a first guide slope and a second guide slope; the two adjacent outer walls of the protrusion are respectively provided with a third guide slope and a fourth guide slope. The first guide slope is parallel to the third guide slope, and the second guide slope is parallel to the fourth guide slope, so as to guide automatic alignment during stacking.

5. A cardboard box that facilitates multi-layer stacking according to claim 1, characterized in that, The lower end face of the upper right-angle seat and the upper end face of the lower right-angle seat are respectively provided with corresponding upper grooves and lower grooves; a snap-fit ​​female seat is fixed on the bottom surface of the lower groove, the snap-fit ​​female seat includes a connecting plate and a snap-fit ​​piece at its lower end, the two ends of the snap-fit ​​piece are suspended to form a snap-fit ​​space; a snap-fit ​​male component is fixed on the bottom surface of the upper groove, the snap-fit ​​male component is an insert block that is adapted to be inserted into the snap-fit ​​space and forms an elastic snap-fit.

6. A cardboard box that facilitates multi-layer stacking according to claim 1, characterized in that, The four side panels are connected to each other by an edge banding strip. The edge banding strip includes a first vertical strip and a second vertical strip that are vertically connected. The second vertical strip extends inward with an L-shaped mounting strip. The vertical section of the mounting strip is parallel to the first vertical strip, and the horizontal section is parallel to the second vertical strip. The mounting strip and the first vertical strip and the second vertical strip respectively form a slot. The ends of the two adjacent side panels are respectively inserted into the slot.

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