Automatic bottom box buckling device for flip cover plug lock without sealing box

Abstract

The utility model discloses a kind of automatic bottoming boxes of exempting from sealing flip cover mortise lock, including the box body of integrated molding, the box body is sequentially included from left to right by indentation connection first side plate, second side plate, third side plate and fourth side plate, the upper end of first side plate is connected with first cover plate lower end connection first bottom plate, the upper end of second side plate is connected with second cover plate lower end connection second bottom plate, the upper end of third side plate is connected with third cover plate lower end connection third bottom plate, the upper end of fourth side plate is connected with fourth cover plate lower end connection fourth bottom plate, the opposite side edge middle part of first bottom plate and third bottom plate is equipped with mutually matched buckling structure, the end of second cover plate and fourth cover plate is equipped with for sealing tongue structure, the end of first cover plate and third cover plate is equipped with with the cover plate lock hole corresponding with the position of the tongue structure, shape is adapted. The utility model does not need additional sealing material, can one-key buckling, and overall structure is stable.

Description

Technical Field

[0001] This utility model relates to the field of packaging container technology, and in particular to a non-sealed flip-top lock automatic bottom box. Background Technology

[0002] In the current packaging industry, cardboard boxes are widely used due to their advantages such as low cost, ease of processing, and environmental recyclability. However, traditional cardboard boxes have many drawbacks: First, they generally rely on tape or strapping for sealing, which not only increases material costs and operational procedures but also causes environmental pollution and is inconvenient to unpack; second, common snap-on bottom cardboard boxes often require manual folding and insertion of multiple flaps, a cumbersome process that requires certain skills from operators, is inefficient, and has inconsistent locking reliability, posing a risk of bottom detachment under heavy loads; third, empty boxes cannot be completely flattened after forming, occupying a large amount of storage and transportation space, resulting in high logistics costs.

[0003] With the increasing demand for e-commerce logistics and automated packaging, the market urgently needs a new type of packaging box that features rapid prototyping, no-sealing operation, robust structure, and ease of storage and transportation. This type of box should be able to achieve rapid top sealing, reliable automatic bottom locking, and easy folding when empty, in order to improve overall packaging efficiency, reduce overall costs, and meet environmental protection requirements. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a box with an automatic bottom locking mechanism that enables quick tool-free sealing, has a one-click automatic snap-fit ​​and secure locking bottom, and is easy to fold and transport when unloaded.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a non-sealed flip-top lock automatic bottom-locking box, comprising an integrally formed box body. The box body, from left to right, includes a first side plate, a second side plate, a third side plate, and a fourth side plate connected by indentations. The upper end of the first side plate is connected to a first cover plate, and the lower end is connected to a first bottom plate. The upper end of the second side plate is connected to a second cover plate, and the lower end is connected to a second bottom plate. The upper end of the third side plate is connected to a third cover plate, and the lower end is connected to a third bottom plate. The upper end of the fourth side plate is connected to a fourth cover plate, and the lower end is connected to a fourth bottom plate. The first and third bottom plates have the same structure, and the second and fourth bottom plates have the same structure. At the center of the facing sides of the first and third bottom plates, a mutually engaging locking structure is provided. When the box body is formed, the first... One side panel and the third side panel form the long side of the box, and the second side panel and the fourth side panel form the short side of the box. The first bottom plate and the third bottom plate form a closed bottom of the box through the fastening structure and the mutual cooperation of the second bottom plate and the fourth bottom plate. The second cover plate and the fourth cover plate are the same shape, and the ends of the second cover plate and the fourth cover plate are provided with a tongue structure for sealing. The first cover plate and the third cover plate are the same shape, and the ends of the first cover plate and the third cover plate are provided with cover plate locking holes that correspond to the position and shape of the tongue structure. When the box is closed, the first cover plate and the third cover plate fold inward to cover the top of the box, and the second cover plate and the fourth cover plate fold inward, so that the tongue structure at their ends is aligned and pressed into the cover plate locking holes on the first cover plate and the third cover plate, thereby sealing the top of the box.

[0006] As a further explanation of this utility model: Preferably, the first side plate and the third side plate have the same shape, the second side plate and the fourth side plate have the same shape, and the left and right length of the first side plate is greater than the left and right length of the second side plate.

[0007] Preferably, the second and fourth base plates are trapezoidal, extending downwards from the bottom edges of the second and fourth side plates respectively, with the right side edge being longer than the left side edge. The fastening structure includes inwardly recessed slots on the sides of the first and third base plates, and a triangular tongue at the right end of the slot. The slot is trapezoidal in shape, with a rectangular limiting stop at the left end of the slot bottom. The bottom of the slot is flush with the bottom edges of the second and fourth base plates. The triangular tongue... The flap extends diagonally downwards, with its bottom edge flush with the bottom edges of the first and third base plates and its right side flush with the right sides of the first and third side plates. The right side of the second and fourth base plates has a lock hole space that matches the shape of the triangular tongue flap. When the box is formed, the two slots on the first and third base plates engage with each other, the rectangular limiting blocks abut against each other, and the triangular tongue flap engages with the adjacent lock hole space to achieve a stable fastening at the bottom of the box.

[0008] Preferably, the tongue structure includes a rectangular cover tongue, the second cover and the fourth cover are rectangular extension structures, adapted to the extension dimensions of the second side plate and the fourth side plate respectively along the unfolding direction of the box, and the rectangular cover tongue is provided on the left side of the free end of each of them. The rectangular cover tongue extends along the left and right directions of the second cover and the fourth cover respectively; the first cover and the third cover are L-shaped extension structures, adapted to the extension dimensions of the first side plate and the third side plate respectively along the unfolding direction of the box, and a cover locking hole matching the rectangular cover tongue is provided at the position of the rectangular cover tongue. The cover locking hole is rectangular.

[0009] Preferably, the end of the rectangular cover tongue is chamfered with a chamfer radius of 1.0mm to 3.0mm to facilitate insertion into the corresponding cover lock hole.

[0010] Preferably, when the first cover plate and the third cover plate are closed, their opposing edges partially overlap.

[0011] Preferably, the left side of the first side panel is provided with a trapezoidal adhesive part, which is adapted to the first side panel and is used to adhere to the inner side of the fourth side panel during the molding of the box, so that the box is enclosed.

[0012] Preferably, the box body is integrally formed by die-cutting and creasing any one of corrugated cardboard, hardboard or cardboard, and the box body has a flat structure in the unassembled state, which is convenient for transportation and storage.

[0013] Preferably, the indentation is a continuous indentation, with an indentation depth of 1 / 3 to 2 / 3 of the thickness of the box substrate and an indentation width of 0.3mm to 0.8mm, which facilitates the folding and forming of each component.

[0014] Preferably, the total length of the box body after unfolding is 601.0mm to 651.0mm. The vertical widths of the first, second, third, and fourth side panels are equal, all ranging from 90.0mm to 110.0mm. The horizontal length of the first side panel is twice that of the second side panel. The L-shaped first cover plate includes a shorter first vertical side and a taller second vertical side. The vertical width of the first vertical side is 48.0mm to 54.0mm, and the vertical width of the second vertical side is 75.0mm to 78.0mm. The inward recess of the slot is 20.0mm to 24.0mm, and the vertical width of the first bottom plate is 70.0mm to 75.0mm.

[0015] The beneficial effects of this utility model are: Firstly, it achieves true no-sealing operation, saving costs and being environmentally friendly: This utility model uses a locking mechanism consisting of rectangular cover tongues and cover locking holes in the top cover. When closing the box, simply fold the second and fourth cover plates inwards, pressing the tongue structures at their ends into the cover locking holes on the first and third cover plates to achieve a secure seal on the top of the box. This process completely eliminates the need for tape, packing straps, or any additional sealing materials, simplifying the operation, improving sealing efficiency, and completely eliminating the inconvenience and environmental pollution caused by using tape, while also directly saving material costs.

[0016] Secondly, the box bottom features a one-click automatic locking function, ensuring quick forming and reliable locking: The box bottom structure of this utility model is ingeniously designed. Through the interlocking trapezoidal slots and triangular interlocking tabs on the opposing sides of the first and third bottom plates, working in conjunction with the corresponding locking holes on the second and fourth bottom plates, automatic locking is achieved during box forming. During box forming, the two slots interlock, and the rectangular limiting blocks abut against each other, providing initial positioning and support. Simultaneously, the triangular interlocking tabs engage with the locking holes on the adjacent bottom plates, forming a secondary locking mechanism. This multi-layered locking mechanism ensures the box bottom maintains extremely high structural stability even under heavy loads, effectively avoiding the risk of bottom detachment present in traditional snap-fit ​​boxes. This locking process allows for "one-click" rapid forming, reducing the skill requirements for operators and greatly improving packaging efficiency.

[0017] Thirdly, its integrated structure and ability to be completely flattened greatly optimizes storage and transportation efficiency: the box is integrally formed from a single sheet of corrugated cardboard, hardboard, or cardboard through die-cutting and creasing, resulting in a complete flat structure in its unassembled state. Compared to traditional cardboard boxes that cannot be completely flattened after forming, the empty box of this invention occupies minimal space during storage and transportation, thereby significantly reducing warehousing and logistics costs. It is particularly suitable for industries with extremely high space utilization requirements, such as e-commerce and logistics.

[0018] Fourthly, the overall structure is stable, with excellent sealing and load-bearing performance: Firstly, in the bottom part of the box, the design of the slot bottom being flush with the bottom edge of the adjacent bottom plate, and the tight interlocking of the triangular tongue fold and the lock hole space, together form a stable and reliable load-bearing platform. Secondly, in the lid part, when the first and third lids are closed, their opposing edges overlap, and then interlock with the lids with tongues pressed in from both sides, greatly enhancing the integrity and sealing of the top, effectively preventing the contents from being accidentally opened or becoming damp during circulation.

[0019] Fifth, the design balances practicality and ease of use: The end of the rectangular cover tongue of this utility model has a chamfer of a specific radius. This design makes the tongue easier to insert into the cover locking hole, improving the user experience. Furthermore, the components are connected by continuous indentation. The depth and width of the indentation are precisely calculated, ensuring both the convenience of folding and the structural strength of the folds after forming. Through its unique structural design, this utility model successfully integrates core advantages such as tool-free sealing, automatic bottom fastening, stable locking, and convenient storage and transportation. It effectively solves a series of technical problems pointed out in the background art, such as cumbersome operation, reliance on auxiliary materials, poor locking reliability, and high empty box storage and transportation costs of traditional cardboard boxes, providing a new type of packaging solution that is efficient, economical, reliable, and environmentally friendly. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 for Figure 1 A magnified structural diagram of part A in the middle.

[0022] In the diagram: 1. First side plate; 2. Second side plate; 3. Third side plate; 4. Fourth side plate; 5. First cover plate; 6. First bottom plate; 7. Second cover plate; 8. Second bottom plate; 9. Third cover plate; 10. Third bottom plate; 11. Fourth cover plate; 12. Fourth bottom plate; 13. Rectangular cover plate tongue; 14. Cover plate lock hole; 15. Slot; 16. Triangular tongue flap; 17. Rectangular limiting block; 18. Lock hole space; 19. Trapezoidal adhesive part; 20. First vertical edge; 21. Second vertical edge. Detailed Implementation

[0023] The structural and working principles of this utility model will be further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1 , Figure 2As shown, this utility model is a self-sealing flip-top lock automatic bottom-locking box, comprising an integrally molded box body. The box body, from left to right, includes a first side plate 1, a second side plate 2, a third side plate 3, and a fourth side plate 4 connected by indentations. The upper end of the first side plate 1 is connected to a first cover plate 5, and the lower end to a first bottom plate 6. The upper end of the second side plate 2 is connected to a second cover plate 7, and the lower end to a second bottom plate 8. The upper end of the third side plate 3 is connected to a third cover plate 9, and the lower end to a third bottom plate 10. The upper end of the fourth side plate 4 is connected to a fourth cover plate 11, and the lower end to a fourth bottom plate 12. The first bottom plate 6 and the third bottom plate 10 have the same structure, as do the second bottom plate 8 and the fourth bottom plate 12. A locking structure is provided at the center of the facing sides of the first bottom plate 6 and the third bottom plate 10. When the box body is formed, the first side plate 1 and the third side plate 4 lock together. Plate 3 forms the long side of the box, and the second side plate 2 and the fourth side plate 4 form the short side of the box. The first bottom plate 6 and the third bottom plate 10 form a closed bottom of the box through the fastening structure and the mutual cooperation of the second bottom plate 8 and the fourth bottom plate 12. The second cover plate 7 and the fourth cover plate 11 have the same shape, and the ends of the second cover plate 7 and the fourth cover plate 11 are provided with a tongue structure for sealing. The first cover plate 5 and the third cover plate 9 have the same shape, and the ends of the first cover plate 5 and the third cover plate 9 are provided with cover plate locking holes 14 that correspond to the position and shape of the tongue structure. When the box is closed, the first cover plate 5 and the third cover plate 9 fold inward to cover the top of the box, and the second cover plate 7 and the fourth cover plate 11 fold inward, so that the tongue structure at their ends is aligned and pressed into the cover plate locking holes 14 on the first cover plate 5 and the third cover plate 9, thereby sealing the top of the box.

[0025] like Figure 1 , Figure 2 As shown, the first side plate 1 and the third side plate 3 have the same shape, the second side plate 2 and the fourth side plate 4 have the same shape, and the left and right length of the first side plate 1 is greater than the left and right length of the second side plate 2.

[0026] like Figure 1 , Figure 2As shown, the second base plate 8 and the fourth base plate 12 are trapezoidal, extending downwards from the bottom edges of the second side plate 2 and the fourth side plate 4, respectively, with the right side edge being longer than the left side edge. The fastening structure includes a groove 15 recessed inwards on the sides of the first base plate 6 and the third base plate 10, and a triangular tongue fold 16 located at the right end of the groove 15. The groove 15 is trapezoidal in shape, and a rectangular limiting stop 17 is provided at the left end of the bottom of the groove 15. The bottom of the groove 15 is flush with the bottom edges of the second base plate 8 and the fourth base plate 12. The plate 16 extends diagonally downwards, with its bottom edge flush with the bottom edges of the first base plate 6 and the third base plate 10, and its right side flush with the right side edges of the first side plate 1 and the third side plate 3. The right side of the second base plate 8 and the fourth base plate 12 is provided with a lock hole space 18 that matches the shape of the triangular tongue fold 16. When the box is formed, the two slots 15 on the first base plate 6 and the third base plate 10 engage with each other, and the rectangular limiting blocks 17 abut against each other for limiting. At the same time, the triangular tongue fold 16 engages with the adjacent lock hole space 18 to achieve a stable fastening at the bottom of the box.

[0027] like Figure 1 As shown, the tongue structure includes a rectangular cover tongue 13, a second cover plate 7 and a fourth cover plate 11 with a rectangular extension structure, which are adapted to the extension dimensions of the second side plate 2 and the fourth side plate 4 respectively along the unfolding direction of the box body. The rectangular cover tongue 13 is provided on the left side of its free end. The rectangular cover tongue 13 extends along the left and right directions of the second cover plate 7 and the fourth cover plate 11 respectively. The first cover plate 5 and the third cover plate 9 have an L-shaped extension structure, which are adapted to the extension dimensions of the first side plate 1 and the third side plate 3 respectively along the unfolding direction of the box body. A cover plate locking hole 14 matching the rectangular cover tongue 13 is provided at the position corresponding to the rectangular cover tongue 13. The cover plate locking hole 14 is rectangular.

[0028] Furthermore, the end of the rectangular cover tongue 13 is chamfered with a radius of 1.0mm to 3.0mm to facilitate insertion into the corresponding cover lock hole 14. In this embodiment, the chamfer radius of the end of the rectangular cover tongue 13 is 1.5mm.

[0029] Furthermore, when the first cover plate 5 and the third cover plate 9 are closed, their opposing edges partially overlap.

[0030] like Figure 1 As shown, a trapezoidal adhesive part 19 is provided on the left side of the first side plate 1. The trapezoidal adhesive part 19 is adapted to the first side plate 1 and is used to adhere to the inner side of the fourth side plate 4 during the box forming process so that the box is enclosed.

[0031] Furthermore, the box body is integrally formed by die-cutting and creasing any one of corrugated cardboard, hardboard or cardboard. The box body has a flat structure in the unassembled state, which facilitates transportation and storage.

[0032] Furthermore, the indentation is a continuous indentation, with an indentation depth of 1 / 3 to 2 / 3 of the thickness of the box substrate and an indentation width of 0.3 mm to 0.8 mm, facilitating the folding and forming of each component. In this embodiment, the indentation depth is 1 / 3 of the thickness of the box substrate, and the indentation width is 0.4 mm.

[0033] Furthermore, the total length of the box body after unfolding is 601.0mm to 651.0mm. The vertical widths of the first side plate 1, the second side plate 2, the third side plate 3, and the fourth side plate 4 are equal, all ranging from 90.0mm to 110.0mm. The horizontal length of the first side plate 1 is twice the horizontal length of the second side plate 2. The L-shaped first cover plate 5 includes a shorter first vertical edge 20 and a taller second vertical edge 21. The vertical width of the first vertical edge 20 is 48.0mm to 54.0mm, and the vertical width of the second vertical edge 21 is 75.0mm to 78.0mm. The inward recess depth of the slot 15 is 20.0mm to 24.0mm, and the vertical width of the first bottom plate 6 is 70.0mm to 75.0mm. In this embodiment, the total length of the box body after unfolding is 631.0 mm. The vertical widths of the first side plate 1, the second side plate 2, the third side plate 3, and the fourth side plate 4 are equal, all being 100.0 mm. The horizontal length of the first side plate 1 is twice the horizontal length of the second side plate 2. The vertical width of the first vertical edge 20 is 51.0 mm, the vertical width of the second vertical edge 21 is 77.0 mm, the inward recess depth of the slot 15 is 22.0 mm, and the vertical width of the first bottom plate 6 is 73.0 mm.

[0034] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "left," "right," "upper," "lower," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application.

[0035] The above description is merely a preferred embodiment of this utility model. Any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical solution of this utility model shall fall within the scope of the technical solution of this utility model.

Claims

1. A self-sealing, flip-top, latching, automatically locking bottom box, characterized in that: The box includes a one-piece molded box body, which, from left to right, comprises a first side plate, a second side plate, a third side plate, and a fourth side plate connected by indentation. The upper end of the first side plate is connected to a first cover plate, and the lower end to a first bottom plate. The upper end of the second side plate is connected to a second cover plate, and the lower end to a second bottom plate. The upper end of the third side plate is connected to a third cover plate, and the lower end to a third bottom plate. The upper end of the fourth side plate is connected to a fourth cover plate, and the lower end to a fourth bottom plate. The first and third bottom plates have identical structures, as do the second and fourth bottom plates. A snap-fit ​​structure is provided at the center of the facing sides of the first and third bottom plates. When the box body is formed, the first and third side plates constitute the long side surface of the box body. The second and fourth side panels form the short sides of the box. The first and third bottom plates, through the fastening structure, cooperate with each other to form a closed bottom. The second and fourth cover plates are identical in shape, and their ends are provided with tongue structures for sealing. The first and third cover plates are identical in shape, and their ends are provided with cover locking holes that correspond to the position and shape of the tongue structures. When the box is closed, the first and third cover plates fold inward to cover the top of the box, and the second and fourth cover plates fold inward, aligning their tongue structures with and pressing them into the cover locking holes on the first and third cover plates, thus sealing the top of the box.

2. The automatic bottom-locking box with flip-top lid and latching mechanism according to claim 1, characterized in that: The first side plate and the third side plate have the same shape, the second side plate and the fourth side plate have the same shape, and the left and right length of the first side plate is greater than the left and right length of the second side plate.

3. The automatic bottom-locking box with flip-top lid and latching mechanism according to claim 2, characterized in that: The second and fourth base plates are trapezoidal, extending downwards from the bottom edges of the second and fourth side plates, respectively, with the right side longer than the left side. The fastening structure includes inwardly recessed slots on the sides of the first and third base plates, and a triangular tongue flap on the right end of the slot. The slot is trapezoidal in shape, with a rectangular limiting block at the left end of the slot bottom. The bottom of the slot is flush with the bottom edges of the second and fourth base plates. The triangular tongue flap extends obliquely downwards, with its bottom edge flush with the bottom edges of the first and third base plates and its right side flush with the right sides of the first and third side plates. The right side of the second and fourth base plates has a lock hole space that matches the shape of the triangular tongue flap. When the box is formed, the two slots on the first and third base plates engage with each other, the rectangular limiting blocks abut against each other, and the triangular tongue flap engages with the adjacent lock hole space, achieving a stable fastening at the bottom of the box.

4. The automatic bottom-locking flip-top box with no sealing required according to claim 3, characterized in that: The latch structure includes a rectangular cover latch. The second and fourth cover plates have rectangular extension structures, which are adapted to the extension dimensions of the second and fourth side plates respectively along the unfolding direction of the box. The rectangular cover latches are respectively provided on the left side of their free ends, and the rectangular cover latches extend in the left and right directions of the second and fourth cover plates respectively. The first and third cover plates have L-shaped extension structures, which are adapted to the extension dimensions of the first and third side plates respectively along the unfolding direction of the box. A cover plate locking hole is provided at the position corresponding to the rectangular cover latch, and the cover plate locking hole is rectangular.

5. The automatic bottom-locking box with flip-top lid and latching mechanism according to claim 4, characterized in that: The end of the rectangular cover tongue is chamfered with a radius of 1.0mm to 3.0mm to facilitate insertion into the corresponding cover lock hole.

6. The automatic bottom-locking box with flip-top lid and latching mechanism according to claim 5, characterized in that: When the first cover plate and the third cover plate are closed, their opposing edges partially overlap.

7. The automatic bottom-locking flip-top box with no sealing required according to claim 6, characterized in that: The left side of the first side panel is provided with a trapezoidal adhesive part, which is adapted to the first side panel and is used to adhere to the inside of the fourth side panel during the box forming process, so that the box is enclosed.

8. The automatic bottom-locking flip-top box with no sealing required according to claim 7, characterized in that: The box is integrally formed by die-cutting and creasing any one of corrugated cardboard, hardboard or cardboard. The box has a flat structure in the unassembled state, which is convenient for transportation and storage.

9. The automatic bottom-locking flip-top box with no sealing required according to claim 8, characterized in that: The indentation is a continuous indentation, with an indentation depth of 1 / 3 to 2 / 3 of the thickness of the box substrate and an indentation width of 0.3mm to 0.8mm, which facilitates the folding and forming of each component.

10. The automatic bottom-locking flip-top box with no sealing required according to claim 9, characterized in that: The total length of the box body after unfolding is 601.0mm to 651.0mm. The top and bottom widths of the first, second, third, and fourth side panels are equal, all ranging from 90.0mm to 110.0mm. The left and right length of the first side panel is twice that of the second side panel. The L-shaped first cover plate includes a shorter first vertical side and a taller second vertical side. The top and bottom widths of the first vertical side are 48.0mm to 54.0mm, and the top and bottom widths of the second vertical side are 75.0mm to 78.0mm. The inward recess depth of the slot is 20.0mm to 24.0mm. The top and bottom widths of the first bottom plate are 70.0mm to 75.0mm.

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