Conveniently transported straight quadrilateral prism environment-friendly packaging box

Abstract

The utility model relates to packing box technical field more specifically relates to a kind of straight four-prism environmental protection packing box of convenient transportation, the straight four-prism environmental protection packing box includes side plate section bar, side plate section bar includes integrally formed first side plate, second side plate and triangular bottom plate, right angle is formed between first side plate and second side plate at adjacent side, and the bottom edge of first side plate and second side plate is respectively integrally formed with the fixed connection structure of two right angle edges of bottom plate;First clamping structure is equipped on first side plate, second clamping structure is equipped on second side plate and is matched with first clamping structure;Among them, first clamping structure includes upper side hook portion and lower side clamping edge portion, and second clamping structure includes upper side clamping edge portion and lower side hook portion;Two side plate section bars are spliced oppositely, and the upper side hook portion and lower side clamping edge portion of one side plate section bar are spliced with the upper side clamping edge portion and lower side hook portion of another side plate section bar;The utility model is simple in structure and reliable, and splicing is convenient.

Description

Technical Field

[0001] This utility model relates to the field of packaging box technology, and more specifically to a straight quadrangular prism environmentally friendly packaging box that is convenient for transportation. Background Technology

[0002] Packaging boxes made by foaming and molding plant fibers have the advantages of being virtually environmentally friendly, having a simple manufacturing process, low cost, wide availability of raw materials, and excellent shock absorption and vibration isolation performance.

[0003] In the prior art, packaging boxes are made of plant fibers and additives such as starch. Preparation methods include those disclosed in patent document CN 101377395 B, "Molded Firework Outer Cylinder, Firework Ball Shell and its Manufacturing Method"; and patent document CN 101337374 B, "A Manufacturing Method of Pure Plant Fiber Expanded Foamed Packaging Material," etc. When manufacturing the profiles, only the mold shape needs to be adjusted as required.

[0004] This type of material is highly suitable for packaging, effectively solving the problems of high packaging costs and environmental pollution associated with paper, wood, and plastic packaging. However, directly molding the packaging boxes results in larger spare boxes, which is not conducive to the storage and transportation of empty boxes. Furthermore, its material differs from cardboard, making it unsuitable for stacking empty boxes for backup.

[0005] Therefore, it is urgent to propose a new technical solution to address the problem. Utility Model Content

[0006] (a) Technical problems to be solved Based on this, the present invention provides a convenient and environmentally friendly rectangular prism packaging box that can be stacked and stored, occupies little space, is easy to assemble, facilitates the transportation of empty packaging boxes, can be reused, and effectively reduces the cost of packaging boxes.

[0007] (II) Technical Solution To solve the above-mentioned technical problems, this utility model provides a convenient transportable rectangular prism environmentally friendly packaging box. The rectangular prism environmentally friendly packaging box includes side panel profiles, each side panel profile comprising an integrally formed first side panel, a second side panel, and a triangular base plate. The first side panel and the second side panel form a right angle at adjacent sides. The two right-angled sides of the base plate are integrally formed and fixed to the base edges of the first side panel and the second side panel, respectively. A first engaging structure is provided on the first free side of the first side panel, and a second engaging structure is provided on the second free side of the second side panel to cooperate with the first engaging structure. The first engaging structure includes... The first side panel has an upper hook portion on the upper half of the first free side and a lower hook portion on the lower half of the first free side. The second engaging structure includes an upper hook portion on the upper half of the second free side and a lower hook portion on the lower half of the second free side. There are two side panel profiles, which are spliced ​​together opposite each other. The upper hook portion of one side panel profile can engage with the upper hook portion of the other side panel profile, and the lower hook portion engages with the lower hook portion, so that the two side panel profiles are spliced ​​together to form a quadrangular prism-shaped packaging box side panel.

[0008] Preferably, the adjacent sides of the first side plate and the second side plate, which are integrally formed, are fixed edges, with the first side plate extending in a first direction and the second side plate extending in a second direction. The lower retaining edge is located in the lower half of the first free side, and the lower retaining edge is a lower retaining edge protruding along the first direction on the first free side. The upper hook is located in the upper half of the first free side, and the upper hook includes a first extension coplanar with the first side plate that protrudes along the first direction on the first free side. The first extension portion and the second extension portion extending along the second direction at the end of the first extension portion form an L-shaped upper hook; the upper hook edge portion is provided on the upper half of the second free side, and the upper hook edge portion is an upper hook edge protruding along the second direction on the second free side; the lower hook portion is provided on the lower half of the second free side, and the lower hook portion includes a third extension portion coplanar with the second side plate that protrudes along the second direction on the second free side and a fourth extension portion extending along the first direction at the end of the third extension portion, to form an L-shaped lower hook.

[0009] Preferably, the outer surface of the lower retaining edge is lower than the outer surface of the first side plate, and a first step is formed between the lower retaining edge and the outer surface of the first side plate. The thickness of the first step in the direction perpendicular to the plane of the first side plate is the same as the thickness of the fourth extension in the second direction. The sum of the width of the first step in the direction along the plane of the first side plate and the thickness of the first side plate is the same as the length of the fourth extension in the first direction. The inner surface of the lower retaining edge is flush with the inner surface of the first side plate, and the extension length of the first extension in the first direction is the same as the thickness of the lower retaining edge in the direction perpendicular to the plane of the first side plate. The outer surface of the upper side flange is lower than the outer surface of the second side plate, and a second step is formed between the upper side flange and the outer surface of the second side plate. The thickness of the second step in the direction perpendicular to the plane of the second side plate is the same as the thickness of the second extension in the second direction. The sum of the width of the second step in the direction along the plane of the second side plate and the thickness of the second side plate is the same as the length of the second extension in the second direction. The inner surface of the upper side flange is flush with the inner surface of the second side plate, and the extension length of the third extension in the first direction is the same as the thickness of the upper side flange in the direction perpendicular to the plane of the second side plate.

[0010] Preferably, the lower edge portion and the upper hook portion each occupy half the length in the extension direction along the first free side of the first side plate.

[0011] Preferably, it further includes a cover plate profile, on which a third engaging structure is provided; the top of the first side plate and the second side plate are provided with a fourth engaging structure that cooperates with the third engaging structure; the third engaging structure on the cover plate profile is spliced ​​with the fourth engaging structure on the top of the side plate profile, so as to realize that the cover plate profile is engaged with the top of the side panel of the packaging box formed by splicing the two side plate profiles.

[0012] Preferably, the edge of the base plate adjacent to the outer surface of the first side plate is a strand edge, and the edge adjacent to the outer surface of the second side plate is a hook edge; a triangular notch is formed at the junction of the strand edge and the hypotenuse of the base plate, the hypotenuse of the notch coincides with the hypotenuse of the base plate, the vertex of the notch coincides with the endpoint of the strand edge, the height of the notch is greater than the thickness of the first side plate, and the long side of the notch coincides with the strand edge; a triangular protrusion is formed at the junction of the hook edge and the hypotenuse of the base plate, coplanar with the base plate, the hypotenuse of the protrusion coincides with the hypotenuse of the base plate, the vertex of the protrusion coincides with the endpoint of the hook edge, the height of the protrusion is greater than the height of the second side plate, and the long side of the protrusion coincides with the strand edge.

[0013] Preferably, there is an upper inclined locking edge portion coplanar with the base plate extending from the inclined side of the base plate near the notch, and a lower inclined locking edge portion coplanar with the base plate extending from the inclined side of the base plate near the locking protrusion.

[0014] Preferably, the upper inclined edge portion and the lower inclined edge portion have the same length along the inclined side of the base plate, and each occupies half the length of the inclined side of the base plate.

[0015] Preferably, the upper inclined flange is an upper inclined flange that protrudes from the inclined side of the base plate and is coplanar with the outer surface of the base plate. The outer surface of the upper inclined flange is higher than the outer surface of the inclined side of the base plate, and an inner step is formed on the outer surface of the upper inclined flange and the base plate. The thickness of the inner step on the outer surface of the base plate is the same as that of the lower inclined flange. The lower inclined flange is a lower inclined flange that protrudes from the inclined side of the base plate and is coplanar with the inner surface of the base plate. The inner surface of the lower inclined flange is higher than the inner surface of the inclined side of the base plate, and an outer step is formed on the inner surface of the lower inclined flange and the base plate. The thickness of the outer step on the inner surface of the base plate is the same as that of the upper inclined flange.

[0016] Preferably, the inner wall of the first side plate is provided with a plurality of first reinforcing ribs at equal intervals, and the inner wall of the second side plate is provided with second reinforcing ribs at equal intervals.

[0017] (III) Beneficial Effects Compared with the prior art, this utility model has the following advantages: 1. The straight quadrangular prism environmentally friendly packaging box provided by this utility model adopts an integrally molded side panel profile. Through the cooperation of the first and second interlocking structures, the two side panel profiles can be quickly spliced ​​to form a quadrangular prism side panel. At the same time, the bottom plate is fixed to the side panel profile, which enhances the overall stability.

[0018] 2. The straight quadrangular prism environmentally friendly packaging box provided by this utility model can be disassembled into 3-4 components when not in use, such as 2 side panel profiles and 1-2 cover plate profiles. The side panel profiles can be stacked for storage, which effectively reduces the space occupied by the empty packaging box and facilitates warehousing and transportation.

[0019] 3. The two side panels of the straight quadrangular prism environmentally friendly packaging box provided by this utility model can be detachably connected through a snap-fit ​​structure, which is convenient to splice, simple in structure, easy to assemble and reuse, effectively reducing the overall cost of the packaging box and improving the assembly efficiency and reuse rate of the packaging box. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 This is a structural schematic diagram of a convenient and environmentally friendly rectangular prism packaging box provided by this utility model; Figure 2 This is a structural schematic diagram of the side plate profile and cover plate profile provided by this utility model; Figure 3 yes Figure 2 Structural diagram of the middle side panel profile; Figure 4 yes Figure 3 Another structural schematic diagram of the middle side panel profile; Figure 5 yes Figure 3 A third-view structural schematic diagram of the middle side panel profile; Figure 6 yes Figure 5 A magnified view of a section at point A in the middle; Figure 7 yes Figure 5 A magnified view of a section at point B in the middle; Figure 8 yes Figure 5 A schematic diagram of the structure of the base plate provided by the middle side plate profile; Figure 9 This is a schematic diagram of the structure of the side panel of the packaging box provided by this utility model; Figure 10 yes Figure 9 A magnified view of a section at point C; Figure 11 yes Figure 1 A structural diagram of the cover plate profile provided with the medium-sized packaging box; Figure 12 This is a schematic diagram of the bottom structure of a straight quadrangular prism environmentally friendly packaging box.

[0021] Explanation of the labels for the main components in the diagram: 100. Straight quadrangular prism environmentally friendly packaging box; 200. Side panel of packaging box; 10. Side panel profile; 11. First side panel; 111. First free side edge; 112. First engaging structure; 1121. Upper hook portion; 11211. First extension portion; 11212. Second extension portion; 1122. Lower hook edge portion; 113. First reinforcing rib; 12. Second side panel; 121. Second free side edge; 122. Second engaging structure; 1221. Upper hook edge portion; 1222. Lower hook portion; 12221. Third extension portion; 12222. Fourth extension portion; 123. Second reinforcing rib; 13. Base plate; 131. Edge; 132. Hook edge; 133. Beveled edge; 134. Notch; 135. Plug; 136. Upper beveled hook edge portion; 137. Lower beveled hook edge portion; 14. Fixed edge; 15. Fourth engaging structure; 20. Cover plate profile; 21. Third locking structure; 30. Hook; 40. Slot. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings; many specific details are set forth in the following description in order to provide a full understanding of this utility model; based on the embodiments of this utility model, those skilled in the art can make similar improvements without departing from the spirit of this utility model, but cannot make all other embodiments obtained without creative effort, therefore this utility model is not limited to the specific embodiments disclosed below.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components; and they can also refer to a "transmission connection," that is, a power connection through various suitable methods such as belt drive, gear drive, or sprocket drive. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Please see Figures 1 to 12 To address the problem of large packaging box volume, which is not conducive to the storage and transportation of empty boxes, this utility model provides a convenient transportation straight quadrangular prism environmentally friendly packaging box 100. The straight quadrangular prism environmentally friendly packaging box 100 includes side plate profiles 10, which include an integrally formed first side plate 11, a second side plate 12, and a triangular base plate 13. The first side plate 11 and the second side plate 12 form a right angle at adjacent sides, and the two right-angled sides of the base plate 13 are integrally formed and fixed to the bottom edges of the first side plate 11 and the second side plate 12, respectively.

[0025] It is understood that the term "integrated molding" in this embodiment can refer to a plastic structure integrally molded by injection molding; a material integrally molded by casting; or a structure integrally molded after curing a foamed material.

[0026] Preferably, in this embodiment, the structure can be integrally formed by thermoforming and foaming with organic fibers and starch-based adhesives, supplemented with inorganic fillers, release agents and other materials.

[0027] The first side plate 11 has a first engaging structure 112 on its first free side 111, and the second side plate 12 has a second engaging structure 122 on its second free side 121 that engages with the first engaging structure 112. The first engaging structure 112 includes an upper hook portion 1121 on the upper half of the first free side 111 of the first side plate 11 and a lower edge portion 1122 on the lower half of the first free side 111 of the first side plate 11. The second engaging structure 122 includes an upper edge portion 1221 on the upper half of the second free side 121 of the second side plate 12 and a lower hook portion 1222 on the lower half of the second free side 121 of the second side plate 12.

[0028] There are two side panel profiles 10. The two side panel profiles 10 are spliced ​​together opposite each other. The upper edge 1221 of one side panel profile 10 can be engaged with the upper hook 1121 of the other side panel profile 10. At the same time, the upper hook 1121 of the side panel profile 10 is engaged with the lower edge 1122 of the other side panel profile 10. Thus, the two side panel profiles 10 are spliced ​​together to form a quadrangular prism-shaped packaging box side panel 200. The upper and lower engagement forms an interlocking structure, thereby ensuring the firm connection of the packaging side panel 200.

[0029] The eco-friendly rectangular prism packaging box 100 provided by this utility model includes two integrally formed side panel profiles 10. Through the cooperation of the first locking structure 112 and the second locking structure 122, the two side panel profiles 10 can be quickly spliced ​​together to form a rectangular prism-shaped packaging box side panel 200.

[0030] The straight quadrangular prism environmentally friendly packaging box 100 provided by this utility model can be disassembled into 3-4 components when not in use, such as 2 side panel profiles 10 and 1-2 cover plate profiles 20. The side panel profiles 10 can be stacked for storage, which effectively reduces the space occupied by the empty packaging box 100 and facilitates warehousing and transportation.

[0031] Furthermore, the straight quadrangular prism environmentally friendly packaging box 100 provided by this utility model can be made of plant fiber foam molding, which is environmentally friendly and low cost. The two side panel profiles 10 can be detachably connected by a snap-fit ​​structure, which is convenient to splice, simple in structure, easy to assemble and reuse, effectively reducing the overall cost of the packaging box 100 and improving the assembly efficiency and reuse rate of the packaging box 100.

[0032] It should be noted that, Figure 3 The red auxiliary line (which only serves as an indicator in the diagram) marks the first free side 111. Figure 4 The yellow auxiliary line (which only serves as an indicator in the diagram) marks the second free side 121. Figure 7 The green auxiliary line (which only serves as an indicator in the diagram) is marked as the triangular notch 134 on the triangular base plate 13.

[0033] In one embodiment, see Figures 3 to 4 and Figures 6 to 7 The adjacent sides of the first side plate 11 and the second side plate 12, which are integrally formed, are fixed edges 14. The first side plate 11 extends in the first direction of the fixed edge 14, and the second side plate 12 extends in the second direction of the fixed edge 14.

[0034] Furthermore, the lower edge portion 1122 is provided on the lower half of the first free side 111, and the lower edge portion 1122 is a lower edge that protrudes from the first free side 111 along a first direction; the upper hook portion 1121 is provided on the upper half of the first free side 111, and the upper hook portion 1121 includes a first extension portion 11211 that protrudes from the first free side 111 along a first direction and is coplanar with the first side plate 11, and a second extension portion 11212 that extends from the end of the first extension portion 11211 along a second direction, so as to form an upper hook with an L-shaped structure, so as to engage with the lower edge.

[0035] Furthermore, the upper edge portion 1221 is provided on the upper half of the second free side 121, and the upper edge portion 1221 is an upper edge that protrudes from the second free side 121 along the second direction; the lower hook portion 1222 is provided on the lower half of the second free side 121, and the lower hook portion 1222 includes a third extension portion 12221 that protrudes from the second free side 121 along the second direction and is coplanar with the second side plate 12, and a fourth extension portion 12222 that extends from the end of the third extension portion 12221 along the first direction to form an L-shaped lower hook so as to engage with the upper edge.

[0036] In one embodiment, the outer surface of the lower edge is lower than the outer surface of the first side plate 11, and a first step (not shown) is formed between the lower edge and the outer surface of the first side plate 11. The thickness of the first step in the direction perpendicular to the plane of the first side plate 11 is the same as the thickness of the fourth extension 12222 in the second direction. The sum of the width of the first step in the direction along the plane of the first side plate 11 and the thickness of the first side plate 12 is the same as the length of the fourth extension 12222 in the first direction, so as to ensure that the surface is flat and the structure is tight when engaged, thereby ensuring that the inner and outer surfaces are aligned when engaged and avoiding gaps.

[0037] Furthermore, the inner surface of the lower edge is flush with the inner surface of the first side plate 11, and the extension length of the first extension 11211 along the first direction is consistent with the thickness of the lower edge in the direction perpendicular to the plane of the first side plate 11, so as to ensure a tight fit when engaged, thereby ensuring that the inner and outer surfaces are aligned when engaged and avoiding gaps.

[0038] Furthermore, the outer surface of the upper retaining edge is lower than the outer surface of the second side plate 12, and a second step (not shown in the figure) is formed between the upper retaining edge and the outer surface of the second side plate 12. The thickness of the second step in the direction perpendicular to the plane of the second side plate 12 is the same as the thickness of the second extension 11212 in the second direction. The sum of the width of the second step in the direction along the plane of the second side plate 12 and the thickness of the second side plate 12 is the same as the length of the second extension 11212 in the second direction, so as to ensure that the surface is flat and the structure is tight when engaged, thereby ensuring that the inner and outer surfaces are aligned when engaged and avoiding gaps.

[0039] Furthermore, the inner surface of the upper edge is flush with the inner surface of the second side plate 12, and the extension length of the third extension 12221 along the first direction is consistent with the thickness of the upper edge in the direction perpendicular to the plane of the second side plate 12, so as to ensure a tight fit when engaged, thereby ensuring that the inner and outer surfaces are aligned when engaged and avoiding gaps.

[0040] Since both the lower locking edge 1122 and the upper locking hook 1121 protrude from the first free side 111, and both the upper locking edge 1221 and the lower locking hook 1222 protrude from the second free side 121; the lower locking hook 1222 on the first free side 111 and the upper locking hook 1121 abut against each other in the lateral direction, the lower locking hook 1222 prevents the first side plate 11 from sliding downward, and the upper locking hook 1121 prevents the second side plate 12 from sliding upward.

[0041] At the same time, please combine Figure 1 Through the dimensional design of each component of the first interlocking structure 112 and the second interlocking structure 122, the outer surface of the assembled straight quadrangular prism environmentally friendly packaging box 100 is a smooth plane without steps, with a simple appearance and less prone to bumps and knocks.

[0042] Further, please refer to Figure 3 and Figure 6 The lower locking edge 1122 and the upper locking hook 1121 each occupy half the length along the extension direction of the first free side 111. That is, the upper half of the first free side 111 is the upper locking hook 1121, and the lower half of the first free side 111 is the lower locking edge 1122, so that the overall locking structure is evenly distributed and the splicing stability is improved.

[0043] In one embodiment, see Figure 2 and Figure 11 The packaging box also includes a cover profile 20, on which a third engaging structure 21 is provided. The top of the first side panel 11 and the second side panel 12 are provided with a fourth engaging structure 15 that cooperates with the third engaging structure 21. The third engaging structure 21 on the cover profile 20 is spliced ​​with the fourth engaging structure 15 on the top of the side panel profile 10 to achieve that the cover profile is engaged with the top of the side panel 200 of the packaging box formed by splicing the two side panel profiles 10.

[0044] Specifically, after the two side panel profiles 10 are spliced ​​together to form the side panel 200 of the packaging box, the cover profile 20 is engaged with the fourth engagement structure 15 through the third engagement structure 21, so that the cover profile 20 covers the top of the packaging box 100 and achieves the sealing function.

[0045] Understandably, the latching method between the cover profile 20 and the top of the first side plate 11 and the second side plate 12 can be either a tight latch or a loose latch; the latching method can be set according to needs. For example, when the packaging box 100 is used as a courier box, since the courier box itself also needs to be sealed with tape, a loose latching method with protrusions and grooves can be used. When the packaging box 100 is used as a storage box or in other situations where the lid cannot be easily opened, a tight latching method can be used, such as a hook structure or a locking structure, to achieve the latching between the cover and the box body.

[0046] In one embodiment, see Figure 2 , Figure 5 , Figure 8 and Figure 12The edge of the triangular base plate 13 adjacent to the outer surface of the first side plate 11 is called the rib edge 131, and the edge adjacent to the outer surface of the second side plate 12 is called the hook edge 132. A triangular notch 134 is formed at the intersection of the rib edge 131 and the hypotenuse 133 of the base plate 13. The hypotenuse of the notch 134 coincides with the hypotenuse 133 of the base plate 13, and the vertex of the notch 134 coincides with the endpoint of the rib edge 131. The height of the notch 134 is greater than the thickness of the first side plate 11. The long side of 34 coincides with the side edge 131; at the junction of the hook edge 132 and the hypotenuse 133 of the base plate 13, a triangular protrusion 135 is formed on the same plane as the base plate 13. The hypotenuse of the protrusion 135 coincides with the hypotenuse 133 of the base plate 13, and the vertex of the protrusion 135 is consistent with the endpoint of the hook edge 132. The height of the protrusion 135 is greater than the height of the second side plate 12. The long side of the protrusion 135 coincides with the side edge 131, which effectively enhances the stability of the splicing of the base plate 13.

[0047] Further, please refer to Figure 8 An upper inclined locking edge 136 extends from the inclined side 133 of the base plate 13 near the notch 134, and a lower inclined locking edge 137 extends from the inclined side 133 of the base plate 13 near the locking protrusion 135 and is spliced ​​with the upper inclined locking edge 136.

[0048] Specifically, the upper inclined clamping edge 136 and the lower inclined clamping edge 137 are coplanar with the lower surface of the bottom plate 13 and the upper surface of the box, respectively, and are used to assist in the splicing and positioning of the side plate profile 10.

[0049] Since the lower hook portion 1222 of the second side plate 12 prevents the first side plate 11 from sliding downward, a lower inclined locking edge portion 137 extends from the inclined edge 133 of the bottom plate 13 near the position of the locking protrusion 135 to block the upward movement of the first side plate 11, thus achieving bidirectional locking. Similarly, since the upper hook portion 1121 prevents the second side plate 12 from sliding upward, an upper inclined locking edge portion 136 extends from the inclined edge 133 of the bottom plate 13 near the position of the position of the notch 134 to block the downward sliding of the second side plate 12, thus achieving bidirectional locking.

[0050] Furthermore, the upper inclined edge portion 136 and the lower inclined edge portion 137 have the same length along the inclined side 133 of the base plate 13, and each occupies half the length of the inclined side 133 of the base plate 13, ensuring uniform force distribution during splicing.

[0051] In one embodiment, see Figure 8The upper inclined edge 136 is an upper inclined edge that protrudes from the inclined side 133 of the base plate 13 and is coplanar with the outer surface of the base plate 13. The outer surface of the upper inclined edge is higher than the outer surface of the inclined side 133 of the base plate 13, and an inner step (not shown in the figure) is formed on the outer surface of the upper inclined edge and the base plate 13. The thickness of the inner step on the outer surface of the base plate 13 is the same as that of the lower inclined edge.

[0052] Furthermore, the lower inclined edge 137 is a lower inclined edge that protrudes from the inclined side 133 of the base plate 13 and is coplanar with the inner surface of the base plate 13. The inner surface of the lower inclined edge is higher than the inner surface of the inclined side 133 of the base plate 13, and an outer step (not shown in the figure) is formed on the lower inclined edge and the inner surface of the base plate 13. The thickness of the outer step on the inner surface of the base plate 13 is the same as that of the upper inclined edge.

[0053] Specifically, when the two side panel profiles 10 are spliced, the inner step of one side panel profile 10 engages with the outer step of the other side panel profile 10, and the outer step of one side panel profile 10 engages with the inner step of the other side panel profile 10. Since the thickness of the inner step on the outer surface of the base plate 13 is the same as the thickness of the lower inclined locking edge 137, and the thickness of the outer step on the inner surface of the base plate 13 is the same as the thickness of the upper inclined locking edge 136, a tight engagement is achieved.

[0054] In one embodiment, see Figure 3 and Figure 4 The inner wall of the first side panel 11 is provided with a plurality of first reinforcing ribs 113 at equal intervals, and the inner wall of the second side panel 12 is provided with second reinforcing ribs 123 at equal intervals. These reinforcing ribs enhance the mechanical strength of the side panels, prevent deformation, and improve the durability of the packaging box.

[0055] Those skilled in the art should know that it is sufficient to achieve the corresponding engagement between the first side plate of one side plate profile 10 and the second side plate 12 of the other side plate profile 10.

[0056] Compared with the prior art, this utility model has the following advantages: 1. The straight quadrangular prism environmentally friendly packaging box 100 provided by this utility model adopts an integrally formed side plate profile 10. Through the cooperation of the first locking structure 112 and the second locking structure 122, the two side plate profiles 10 can be quickly spliced ​​to form a quadrangular prism side plate. At the same time, the bottom plate 13 is fixedly connected to the side plate profile 10, which enhances the overall stability.

[0057] 2. The straight quadrangular prism environmentally friendly packaging box 100 provided by this utility model can be disassembled into 3-4 components when not in use, such as 2 side plate profiles 10 and 1-2 cover plate profiles 20. The side plate profiles 10 can be stacked for storage, which effectively reduces the space occupied by the empty packaging box 100 and facilitates warehousing and transportation.

[0058] 3. The straight quadrangular prism environmentally friendly packaging box 100 provided by this utility model can be made of plant fiber foam molding, which is environmentally friendly and low cost. The two side panel profiles 10 can be detachably connected by a snap-fit ​​structure, which is convenient to splice, simple in structure, easy to assemble and reuse, effectively reducing the overall cost of the packaging box 100 and improving the assembly efficiency and reuse rate of the packaging box 100.

[0059] Obviously, the above embodiments are merely examples for the detailed description of this utility model, and are not intended to limit the implementation. This utility model can be implemented in many other ways different from those described herein. Although the embodiments of this utility model have been described in conjunction with the accompanying drawings, those skilled in the art can make other modifications and variations based on the above description, and such modifications and variations still fall within the protection scope defined by the appended claims.

Claims

1. A convenient, environmentally friendly rectangular prism packaging box, characterized in that: include: The side panel profile includes an integrally formed first side panel, a second side panel, and a triangular base plate. The first side panel and the second side panel form a right angle at adjacent sides. The two right-angled sides of the base plate are integrally formed and fixed to the base edges of the first side panel and the second side panel, respectively. The first side plate has a first engaging structure on its first free side, and the second side plate has a second engaging structure on its second free side that cooperates with the first engaging structure. The first engaging structure includes an upper hook portion disposed on the upper half of the first free side of the first side plate and a lower edge portion disposed on the lower half of the first free side of the first side plate; the second engaging structure includes an upper edge portion disposed on the upper half of the second free side of the second side plate and a lower hook portion disposed on the lower half of the second free side of the second side plate. The number of side panel profiles is two, and the two side panel profiles are spliced ​​together opposite each other. The upper edge of one side panel profile can be engaged with the upper hook of the other side panel profile, and the lower hook can be engaged with the lower edge, so that the two side panel profiles are spliced ​​together to form a quadrangular prism-shaped packaging box side panel.

2. The environmentally friendly rectangular prism packaging box according to claim 1, characterized in that, The adjacent sides of the first side plate and the second side plate integrally formed are fixed edges, the first side plate extends in the first direction of the fixed edge, and the second side plate extends in the second direction of the fixed edge. The lower side retaining edge is located on the lower half of the first free side, and the lower side retaining edge is a lower side retaining edge that protrudes from the first free side along the first direction; the upper side hook is located on the upper half of the first free side, and the upper side hook includes a first extension that protrudes from the first free side along the first direction and is coplanar with the first side plate, and a second extension that extends from the end of the first extension along the second direction to form an L-shaped upper side hook; The upper side retaining edge is located on the upper half of the second free side, and the upper side retaining edge is an upper side retaining edge that protrudes along the second direction on the second free side; the lower side retaining hook is located on the lower half of the second free side, and the lower side retaining hook includes a third extension that protrudes along the second direction on the second free side and is coplanar with the second side plate, and a fourth extension that extends along the first direction at the end of the third extension, so as to form an L-shaped lower side retaining hook.

3. The straight quadrangular prism environmentally friendly packaging box according to claim 2, characterized in that, The outer surface of the lower side flange is lower than the outer surface of the first side plate, and a first step is formed between the lower side flange and the outer surface of the first side plate. The thickness of the first step in the direction perpendicular to the plane of the first side plate is the same as the thickness of the fourth extension in the second direction. The sum of the width of the first step in the direction along the plane of the first side plate and the thickness of the first side plate is the same as the length of the fourth extension in the first direction. The inner surface of the lower side edge is flush with the inner surface of the first side plate, and the extension length of the first extension along the first direction is the same as the thickness of the lower side edge in the direction perpendicular to the plane of the first side plate. The outer surface of the upper side flange is lower than the outer surface of the second side plate, and a second step is formed between the upper side flange and the outer surface of the second side plate. The thickness of the second step in the direction perpendicular to the plane of the second side plate is the same as the thickness of the second extension in the second direction. The sum of the width of the second step in the direction along the plane of the second side plate and the thickness of the second side plate is the same as the length of the second extension in the second direction. The inner surface of the upper side flange is flush with the inner surface of the second side plate. The extension length of the third extension in the first direction is the same as the thickness of the upper side flange in the direction perpendicular to the plane of the second side plate.

4. The straight quadrangular prism environmentally friendly packaging box according to claim 3, characterized in that, The lower edge portion and the upper hook portion each occupy half the length in the extension direction along the first free side of the first side plate.

5. The environmentally friendly rectangular prism packaging box according to claim 1, characterized in that, It also includes a cover plate profile, on which a third engaging structure is provided; The top of the first side plate and the second side plate are provided with a fourth engaging structure that cooperates with the third engaging structure; The third engaging structure on the cover plate profile is spliced ​​with the fourth engaging structure on the top of the side plate profile to achieve the cover plate profile engaging with the top of the side panel of the packaging box formed by splicing the two side plate profiles.

6. The environmentally friendly rectangular prism packaging box according to claim 1, characterized in that, The edge of the base plate adjacent to the outer surface of the first side plate is called the "strap edge," and the edge adjacent to the outer surface of the second side plate is called the "hook edge." A triangular notch is formed at the junction of the strap edge and the hypotenuse of the base plate. The hypotenuse of the notch coincides with the hypotenuse of the base plate, and the vertex of the notch coincides with the endpoint of the strap edge. The height of the notch is greater than the thickness of the first side plate, and the long side of the notch coincides with the strap edge. A triangular protrusion coplanar with the base plate is formed at the junction of the hook edge and the hypotenuse of the base plate. The hypotenuse of the protrusion coincides with the hypotenuse of the base plate, and the vertex of the protrusion coincides with the endpoint of the hook edge. The height of the protrusion is greater than the height of the second side plate, and the long side of the protrusion coincides with the strap edge.

7. The straight quadrangular prism environmentally friendly packaging box according to claim 6, characterized in that, An upper inclined locking edge portion coplanar with the base plate extends from the inclined side of the base plate near the notch, and a lower inclined locking edge portion coplanar with the base plate extends from the inclined side of the base plate near the locking protrusion.

8. The environmentally friendly rectangular prism packaging box according to claim 7, characterized in that, The upper inclined edge portion and the lower inclined edge portion have the same length along the inclined side of the base plate, and each occupies half the length of the inclined side of the base plate.

9. The environmentally friendly rectangular prism packaging box according to claim 8, characterized in that, The upper inclined retaining edge is an upper inclined retaining edge that protrudes from the inclined side of the base plate and is coplanar with the outer surface of the base plate. The outer surface of the upper inclined retaining edge is higher than the outer surface of the inclined side of the base plate, and an inner step is formed on the outer surface of the base plate and the upper inclined retaining edge. The thickness of the inner step on the outer surface of the base plate is the same as that of the lower inclined retaining edge. The lower inclined retaining edge is a lower inclined retaining edge that protrudes from the inclined side of the base plate and is coplanar with the inner surface of the base plate. The inner surface of the lower inclined retaining edge is higher than the inner surface of the inclined side of the base plate, and an outer step is formed on the inner surface of the base plate and the lower inclined retaining edge. The thickness of the outer step on the inner surface of the base plate is the same as that of the upper inclined retaining edge.

10. The right-angled square prism environmentally friendly packaging box according to claim 1, characterized in that, The inner wall of the first side plate is provided with a plurality of first reinforcing ribs at equal intervals, and the inner wall of the second side plate is provided with second reinforcing ribs at equal intervals.

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