A coverless integrated box

Abstract

The application discloses a cover-free integrated forming box, belongs to the paper box technical field, and aims to provide a paper box which has the effect of improving the bearing capacity of the paper box, and has the technical scheme as follows: a box body in the shape of a rectangular frame body is formed by a front side plate, a left side plate, a back side plate and a right side plate in sequence; the lower sides of the front side plate and the back side plate are respectively connected with a front inner side plate and a back inner side plate which are attached to the inner sides of the front side plate and the back side plate; the lower sides of the left side plate and the back side plate are respectively connected with a left inner side plate and a right inner side plate which are attached to the inner sides of the left side plate and the back side plate; the adjacent sides of the front inner side plate, the back inner side plate, the left inner side plate and the right inner side plate are in mutual contact; the upper side of the front side plate is connected with a first bottom part which is attached to the front inner side plate and forms a box bottom; the upper side of the left side plate is connected with a second bottom part which is attached to the left inner side plate and forms a box bottom; and the upper side of the right side plate is connected with a third bottom part which is attached to the right inner side plate and forms a box bottom.

Description

Technical Field

[0001] This application relates to the field of cardboard box technology, and in particular to a lidless one-piece molded box. Background Technology

[0002] Corrugated cardboard boxes are widely used in many industries such as packaging and transportation, serving to protect goods and facilitate packaging, storage, and transportation.

[0003] Chinese patent CN204124473U discloses a cardboard box comprising a bottom plate and four side plates. The four side plates include an A side plate, a B side plate opposite to the A side plate, and two side plates connected between the A and B side plates. The bottom plate is integrally formed with the four side plates. A cover plate is connected to the A side plate. The cover plate includes a first cover plate and a second cover plate. One side of the first cover plate is connected to the A side plate, and the other side of the first cover plate is connected to one side of the second cover plate, with the connection forming a tear. A retaining plate is connected to the other side of the second cover plate. A third cover plate is connected to the B side plate. The third cover plate has a first through groove that mates with the retaining plate. A first auxiliary plate is connected to each of the two side plates adjacent to the A side plate. The first auxiliary plate has a second through groove that mates with the retaining plate, and an indentation is provided at the connection of each plate. A connector is provided on the third cover plate or the second cover plate to connect the two cover plates. Although these cardboard boxes are easy to assemble, their single side panel and bottom panel have low load-bearing capacity and cannot support heavy loads when loading heavy items or when stacking the boxes. Utility Model Content

[0004] The purpose of this application is to provide a lidless, one-piece molded cardboard box that improves the load-bearing capacity of the cardboard box.

[0005] The above-mentioned technical objective of this application is achieved through the following technical solution: a lidless one-piece molded box, comprising a box body formed by front side panel, left side panel, rear side panel and right side panel arranged in sequence to form a rectangular frame; The lower sides of the front and rear side panels are respectively connected to a front inner side panel and a rear inner side panel that fit against the inner side of the front side panel and the inner side of the rear side panel. The lower sides of the left side plate and the rear side plate are respectively connected to the left inner side plate and the right inner side plate, which are in contact with the inner side of the left side plate and the inner side of the rear side plate. The front inner side plate, rear inner side plate, left inner side plate, and right inner side plate all abut against each other. The upper side of the front panel is connected to a first bottom that is attached to the front inner panel to form the bottom of the box. The upper side of the left side panel is connected to a second bottom that is attached to the left inner panel to form the bottom of the box. The upper side of the right side panel is connected to a third bottom that is attached to the right inner panel to form the bottom of the box.

[0006] By adopting the above technical solution, the front inner side panel is attached to the inside of the front side panel, the left inner side panel is attached to the inside of the left side panel, the rear inner side panel is attached to the inside of the rear side panel, and the right inner side panel is attached to the inside of the right side panel. The longitudinal support is strengthened, which enhances the overall structural strength of the box and improves the load-bearing capacity of the carton. At the same time, the first bottom, the second bottom, and the third bottom together form the bottom of the carton, enabling the carton to carry heavier items without being easily damaged.

[0007] Furthermore, the front inner side plate and the rear inner side plate are respectively provided with first tongues on both sides, and the left inner side plate and the right inner side plate are respectively provided with first holes that engage with the first tongues. When the front inner side plate is attached to the front side plate, the rear inner side plate is attached to the rear side plate, the left inner side plate is attached to the left side plate, and the right inner side plate is attached to the right side plate, the first tongue is inserted into the first socket.

[0008] By adopting the above technical solution, the first tongue is inserted into the first hole, so that the front inner side panel, left inner side panel, rear inner side panel and right inner side panel can be stably attached to the inner wall of the box after being folded into the box. On the one hand, it increases the load-bearing and pressure-resistant capacity of the box, and on the other hand, it facilitates the staff to assemble quickly.

[0009] Furthermore, the first bottom includes a front connecting plate, a first bottom plate, and a fixing plate connected in sequence. The side of the front connecting plate away from the first bottom plate is fixedly connected to the upper side of the front plate. The front connecting plate is attached to the front inner plate. The first bottom plate is located at the bottom of the box. The fixing plate is attached to the rear inner plate.

[0010] By adopting the above technical solution, the first bottom plate is the bottom of the box, and one side of the first bottom plate is fixedly connected to the front connecting plate, and the other side is tightly attached to the rear inner plate. At this time, the second bottom and the third bottom are attached to the first bottom plate, and the first bottom plate supports the second bottom and the third bottom, so that the bottom of the box has a two-layer structure and has better load-bearing capacity.

[0011] Furthermore, the second bottom includes a left connecting plate and a left bottom plate connected in sequence. The side of the left connecting plate away from the left bottom plate is fixedly connected to the upper side of the left plate. The left connecting plate is attached to the left inner plate. The left bottom plate is L-shaped and attached to the upper side of the first bottom plate. The third bottom includes a right side connecting plate and a right bottom plate connected in sequence. The side of the right side connecting plate away from the right bottom plate is fixedly connected to the upper side of the right side plate. The right side connecting plate is attached to the right inner side plate. The right bottom plate is L-shaped and attached to the upper side of the first bottom plate. The left and right base plates cooperate to form a second base plate and cover the first base plate.

[0012] By adopting the above technical solution, the left and right bottom plates cooperate to form a second bottom plate covering the first bottom plate, making the second bottom plate a flat surface, which makes it more stable when placing items; at the same time, the interaction between the left and right bottom plates allows the two sides of the second bottom plate to provide support to the inside of the box, making the bottom of the box less prone to deformation, and also allowing the fixing plate to be more firmly attached to the rear inner side plate.

[0013] Furthermore, a fourth bottom is connected to the upper side of the rear side plate. The fourth bottom includes a rear connecting plate and a third bottom plate connected in sequence. The side of the rear connecting plate away from the third bottom plate is fixedly connected to the upper side of the rear side plate. The third bottom plate covers the second bottom plate.

[0014] By adopting the above technical solution, when an item is placed on the third base plate, since one side of the third base plate is connected to the rear connecting plate, the adjacent sides are supported by the left base plate and the right base plate respectively, and the side opposite to the rear connecting plate is supported by the connection between the front connecting plate and the first connecting plate, thereby greatly improving the load-bearing capacity of the third base plate.

[0015] Furthermore, the height of the front connecting plate is greater than the height of the front plate.

[0016] By adopting the above technical solution, the height of the front connecting plate is greater than the height of the front side plate, that is, the first bottom plate protrudes from the bottom of the box. When the cartons are stacked, the first bottom plate of the upper carton can be embedded into the upper part of the lower carton, making the cartons stacked more neatly in the vertical direction. This ensures that the corresponding surfaces of each carton are flush with each other, and the weight of the upper carton can be applied vertically to the four thick edges on the upper side of the lower carton through the four thick edges on the bottom side of the carton. This protects the carton from deformation and improves the load-bearing and pressure-resistant capacity of the carton.

[0017] Furthermore, a second insertion hole is provided at the connection between the front connecting plate and the first base plate, and a third insertion hole is provided at the connection between the first base plate and the fixing plate. The third base plate is provided with a second tongue on the side away from the rear connecting plate, which is engaged with the second socket. The connection between the rear connecting plate and the third base plate is provided with a third tongue that is engaged with the third socket.

[0018] By adopting the above technical solution, the second tongue is inserted into the second insertion hole, fixing the third base plate at the connection between the front connecting plate and the first base plate, so that the third connecting plate can be stably placed at the bottom of the box, improving the loading capacity of the box; the third tongue is inserted into the ground insertion hole, thereby connecting the fixing plate, so that the fixing plate can be firmly attached to the rear inner side plate, so that the first base plate, the second base plate and the third base plate from bottom to top fit together tightly, making the structure more compact and greatly improving the loading capacity of the carton.

[0019] Furthermore, both the left and right side plates are provided with handle holes.

[0020] By adopting the above technical solution, the design of the carrying handle makes it easier for staff to move the cardboard boxes.

[0021] In summary, this application has the following beneficial effects: The installation of the front inner side panel, rear inner side panel, left inner side panel and right inner side panel strengthens the load-bearing and compressive strength of the box side wall; The front connecting plate, rear connecting plate, left connecting plate, and right connecting plate provide secondary reinforcement to the load-bearing and compressive strength of the side walls of the enclosure, and the three-layer thick enclosure has good moisture resistance, dust resistance, and stability. The protruding first bottom plate helps improve the stability of the carton when stacked and allows more weight to be applied to the secondary reinforced carton body, thus improving its load-bearing capacity. Attached Figure Description

[0022] Figure 1 This is a schematic diagram illustrating the structure of the cardboard box when it is not folded in this embodiment; Figure 2 This is a schematic diagram of the carton structure after the front inner panel, rear inner panel, left inner panel, and right inner panel are folded in this embodiment; Figure 3 This is a schematic diagram illustrating the structure of the cardboard box after folding in this embodiment; Figure 4 This is a schematic diagram illustrating the structure of the first base plate protruding from the box in this embodiment.

[0023] In the diagram, 101 is the housing; 1 is the front panel; 11 is the front inner panel; 12 is the first bottom; 121 is the front connecting plate; 122 is the first bottom plate; 123 is the fixing plate; 124 is the second socket; 125 is the third socket; 126 is the first tongue; 2 is the left side panel; 21 is the left inner panel; 22 is the second bottom; 221 is the left connecting plate; 222 is the left bottom plate; 223 is the first socket; 3 is the rear panel; 31 is the rear inner panel; 32 is the fourth bottom; 321 is the rear connecting plate; 322 is the third bottom plate; 323 is the second tongue; 324 is the third tongue; 4 is the right side panel; 41 is the right inner panel; 42 is the third bottom; 421 is the right connecting plate; 422 is the right bottom plate; 5 is the handle hole. Detailed Implementation

[0024] The present application will be further described in detail below with reference to the accompanying drawings.

[0025] This embodiment discloses a lidless, one-piece molded cardboard box, such as... Figure 1 and 2As shown, the box 101 is formed by the front side panel 1, the left side panel 2, the rear side panel 3, and the right side panel 4 arranged in sequence. The box 101 has a rectangular frame structure.

[0026] like Figure 1 and 2 As shown, the lower side of the front panel 1 is integrally connected to the front inner panel 11, and the front inner panel 11 is folded inward and attached to the box body 101 to cover the inner side of the front panel 1; the lower side of the rear panel 3 is integrally connected to the rear inner panel 31, and the rear inner panel 31 is folded inward and attached to the box body 101 to cover the inner side of the rear panel 3; the lower side of the left panel 2 is integrally connected to the left inner panel 21, and the left inner panel 21 is folded inward and attached to the box body 101 to cover the inner side of the left panel 2; the lower side of the right panel 4 is integrally connected to the right inner panel 41, and the right inner panel 41 is folded inward and attached to the box body 101 to cover the inner side of the right panel 4. In order to ensure that the front inner side panel 11, the left inner side panel 21, the rear inner side panel 31, and the right inner side panel 41 can be stably attached to the inner wall of the housing 101, the front inner side panel 11, the rear inner side panel 31, the left inner side panel 21, and the right inner side panel are all in contact with each other. A first tongue 126 is provided on each side of the front inner side panel 11, the rear inner side panel 31, the left inner side panel 21, and the right inner side panel 41. A first insertion hole 223 for inserting and fixing the first tongue 126 is provided on each side of the left inner side panel 21 and the right inner side panel 41.

[0027] like Figure 1 and 2 As shown, a first bottom plate 12 is integrally connected to the upper side of the front panel 1. The first bottom plate 12 includes a front connecting plate 121, a first bottom plate 122, and a fixing plate 123, which are integrally connected to the front panel 1 in sequence. The front connecting plate 121 is folded inward to fit against the front inner panel 11. In this embodiment, the height of the front connecting plate 121 is greater than that of the front inner panel 11. In this embodiment, the height difference between the front connecting plate 121 and the front inner panel 11 is 2cm. The height of the front inner panel 11 is the same as that of the front panel 1. Therefore, the first bottom plate 122 protrudes 2cm from the bottom of the housing 101 (see...). Figure 4 The fixing plate 123 is attached to the rear inner side plate 31. A fourth bottom plate 32 is integrally connected to the upper side of the rear side plate 3. The fourth bottom plate 32 includes a rear connecting plate 321 and a third bottom plate 322 integrally connected to the rear side plate 3 in sequence. The rear connecting plate 321 is folded inward to fit against the rear inner side plate 31, and the third bottom plate 322 covers the first bottom plate 122 (see...). Figure 3To enhance the connection strength of the fixing plate 123 to the rear inner side plate 31, a third insertion hole 125 is provided at the connection between the fixing plate 123 and the first base plate 122, and a third insertion tongue 324 for inserting into the third insertion hole 125 is provided on the third base plate 322 and the rear connecting plate 321. Simultaneously, to fix the side of the third base plate 322 away from the rear connecting plate 321, a second insertion tongue 323 is provided on the side of the third base plate 322 away from the rear connecting plate 321, and a second insertion hole 124 for inserting and fixing the second insertion tongue 323 is provided at the connection between the front connecting plate 121 and the first base plate 122. Through the insertion and engagement of the second insertion tongue 323 with the second insertion hole 124 and the third insertion tongue 324 with the third insertion hole 125, the first base plate 122 and the third base plate 322 can be stably fixed to the bottom of the housing 101.

[0028] like Figure 1 and 2 As shown, a second bottom 22 is integrally connected to the upper side of the left side plate 2. The second bottom 22 includes a left connecting plate 221 and an L-shaped left bottom plate 222, which are integrally connected to the left side plate 2 in sequence. The left connecting plate 221 is attached to the left inner side plate 21, and the left bottom plate 222 is attached to the first bottom plate 122. A third bottom 42 is integrally connected to the upper side of the right side plate 4. The third bottom 42 includes a right connecting plate 421 and an L-shaped right bottom plate 422, which are integrally connected to the right side plate 4 in sequence. The right connecting plate 421 is attached to the right inner side plate 41, and the right bottom plate 422 is attached to the first bottom plate 122. The L-shape of the left bottom plate 222 and the right bottom plate 422 interlocks to form a second bottom plate (not shown in the figure) and completely covers the first bottom plate 122. In this embodiment, the first bottom plate 122 and the second bottom plate are tightly attached, and the second bottom plate and the third bottom plate 322 are tightly attached. Thus, the bottom of the box, composed of the first bottom plate 122, the second bottom plate, and the third bottom plate 322, improves the load-bearing capacity of the overall box 101.

[0029] Handle holes 5 of the same size and shape are provided on the left side panel 2, left inner side panel 21, right side panel 4, and right inner side panel 41. When the left side panel 2 and the left inner side panel 21 are attached, the two corresponding handle holes 5 completely overlap; when the right side panel 4 and the right inner side panel 41 are attached, the two corresponding handle holes 5 also completely overlap. The two overlapping handle holes 5 increase the force-applying surface area for the worker's hands during handling, making it easier to carry and reducing the force on each individual handle hole 5, making it less prone to damage.

[0030] Since the carton has a certain thickness, in this embodiment, the front inner side panel 11 is folded to the inside of the box body 101 and attached to the front side panel 1. The front connecting plate 121 needs to cross the thickness of the front inner side panel 11 before being folded to be attached to the front inner side panel 11. Therefore, folding edges are reserved at these places where folding is required to ensure that the structure at the folding point is flat.

[0031] Detailed implementation method: During assembly, the first step is to fold the left inner side panel 21 and the right inner side panel 41 into the housing 101 and attach them to the left side panel 2 and the right side panel 4 respectively; the second step is to fold the front inner side panel 11 and the rear inner side panel 31 into the housing 101 and attach them to the front inner side panel 11 and the rear inner side panel 31 respectively, while inserting the first tongue 126 into the first socket 223; the third step is to fold the front connecting plate 121 into the housing 101 and attach it to the front inner side panel 11, with the first bottom plate 122 protruding 2cm from the bottom of the housing 101. At this time, the fixing plate 123 is attached to the rear inner side panel 31, and then the left connecting plate 221 and the right connecting plate 421 are attached. Fold the left and right inner side panels 21 and 41 into the box body 101 respectively, and press the left and right bottom panels 222 and 422 together to form a second bottom panel covering the first bottom panel 122. Fourth step: Fold the rear connecting plate 321 into the box body 101 and fit it against the rear inner side panel 31. Insert the third tongue 324 into the third insertion hole 125 to reinforce and fix the first bottom panel 122. Then, attach the third bottom panel 322 to the second bottom panel and insert the second tongue 323 into the second insertion hole 124 to fix the third bottom panel 322 to the second bottom panel. This completes the assembly of the entire carton. When stacking the upper and lower cartons, simply insert the bottom of the protruding upper part into the opening of the lower carton. The flat structure at the folding point allows for a three-layer cardboard thickness at the contact point between the upper and lower boxes 101 during stacking, resulting in a large contact surface with high load-bearing and compressive strength. This large contact surface also enhances the sealing of the box 101. Furthermore, the protruding bottom of the box 101 can be matched with the structure of some conveyor belts, making the cartons more stable during transport and less prone to angular deflection. This allows for direct use in automated production as a transport device for placing workpieces.

[0032] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A lidless, one-piece molded box, characterized in that: The box (101) is formed by the front side panel (1), the left side panel (2), the rear side panel (3), and the right side panel (4) in sequence, forming a rectangular frame. The lower sides of the front side plate (1) and the rear side plate (3) are respectively connected to the inner side plate (11) and the inner side plate (31) of the front side plate (1) and the inner side plate (3). The lower sides of the left side plate (2) and the rear side plate (3) are respectively connected to the left inner side plate (21) and the right inner side plate (41) which are in contact with the inner side of the left side plate (2) and the inner side of the rear side plate (3). The front inner side plate (11), the rear inner side plate (31), the left inner side plate (21), and the right inner side plate are all in contact with each other; The upper side of the front panel (1) is connected to a first bottom (12) that is attached to the front inner panel (11) to form the bottom of the box. The upper side of the left panel (2) is connected to a second bottom (22) that is attached to the left inner panel (21) to form the bottom of the box. The upper side of the right panel (4) is connected to a third bottom (42) that is attached to the right inner panel (41) to form the bottom of the box.

2. The lidless one-piece molded box according to claim 1, characterized in that: The front inner side plate (11) and the rear inner side plate (31) are respectively provided with first tongues (126), and the left inner side plate (21) and the right inner side plate (41) are respectively provided with first holes (223) that are engaged with the first tongues (126). When the front inner side plate (11) is attached to the front side plate (1), the rear inner side plate (31) is attached to the rear side plate (3), the left inner side plate (21) is attached to the left side plate (2), and the right inner side plate (41) is attached to the right side plate (4), the first tongue (126) is inserted into the first hole (223).

3. The lidless one-piece molded box according to claim 1, characterized in that: The first bottom (12) includes a front connecting plate (121), a first bottom plate (122) and a fixing plate (123) connected in sequence. The side of the front connecting plate (121) away from the first bottom plate (122) is fixedly connected to the upper side of the front plate (1). The front connecting plate (121) is attached to the front inner plate (11). The first bottom plate (122) is located at the bottom of the box (101). The fixing plate (123) is attached to the rear inner plate (31).

4. A lidless, one-piece molded box according to claim 3, characterized in that: The second bottom (22) includes a left connecting plate (221) and a left bottom plate (222) connected in sequence. The side of the left connecting plate (221) away from the left bottom plate (222) is fixedly connected to the upper side of the left plate (2). The left connecting plate (221) is attached to the left inner plate (21). The left bottom plate (222) is L-shaped and attached to the upper side of the first bottom plate (122). The third bottom (42) includes a right side connecting plate (421) and a right bottom plate (422) connected in sequence. The side of the right side connecting plate (421) away from the right bottom plate (422) is fixedly connected to the upper side of the right side plate (4). The right side connecting plate (421) is attached to the right inner side plate (41). The right bottom plate (422) is L-shaped and attached to the upper side of the first bottom plate (122). The left bottom plate (222) and the right bottom plate (422) cooperate to form a second bottom plate and cover the first bottom plate (122).

5. A lidless, one-piece molded box according to claim 4, characterized in that: The upper side of the rear side plate (3) is connected to a fourth bottom (32), the fourth bottom (32) includes a rear connecting plate (321) and a third bottom plate (322) connected in sequence. The side of the rear connecting plate (321) away from the third bottom plate (322) is fixedly connected to the upper side of the rear side plate (3), and the third bottom plate (322) covers the second bottom plate.

6. A lidless, one-piece molded box according to claim 3, characterized in that: The height of the front connecting plate (121) is greater than the height of the front plate (1).

7. A lidless, one-piece molded box according to claim 5, characterized in that: A second insertion hole (124) is provided at the connection between the front connecting plate (121) and the first base plate (122), and a third insertion hole (125) is provided at the connection between the first base plate (122) and the fixing plate (123). The third base plate (322) is provided with a second tongue (323) on the side away from the rear connecting plate (321) to engage with the second socket (124), and a third tongue (324) is provided at the connection between the rear connecting plate (321) and the third base plate (322) to engage with the third socket (125).

8. A lidless, one-piece molded box according to claim 1, characterized in that: Both the left side plate (2) and the right side plate (4) are provided with handle holes (5).

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