A packaging box

Abstract

The utility model relates to a kind of packing box in packing box technical field, the handle slot structure of the packing box includes first box side wall, first box side wall is equipped with perforation, and first box side wall and located the cutting group of perforation outer circumferential side is set;First flap, first flap has multiple insertion tongues extending in multiple directions, the handle slot structure of packing box is designed as sealed embedded handle slot, after multiple insertion tongues are respectively embedded in multiple cutouts, first flap is pressed to the inside of packing box along perforation, thus handle slot structure forms the slot body that can be stressed, since first flap has shielded perforation, so that handle slot structure forms the sealing on the perforation of packing box, avoid dust and other external impurities to enter inside and pollute product, in the case where the sealing of packing box is ensured, it is more convenient for carrier finger to be directly buckled into slot body, and slot body each side wall is the stress mode of dispersed type, also largely avoid the pulling position of destruction packing box.

Description

Technical Field

[0001] This utility model relates to the field of packaging box technology, and in particular to a packaging box. Background Technology

[0002] Traditional cardboard boxes have handle holes on the side. When handling them, the cardboard with the handle holes alone can bear the lifting force, which is very easy to damage. The handle holes have weak load-bearing capacity, can easily cut hands, and can easily let dust in and contaminate the products inside the packaging. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the technical problems of weak load-bearing strength of traditional cardboard box handle holes, easy to cut hands and easy to get dust in and contaminate the products inside the packaging. To this end, a handle groove structure and packaging box are provided.

[0004] This utility model aims to provide a packaging box, comprising:

[0005] The first box sidewall has a perforation, and a cut group is provided on the first box sidewall and around the perforation.

[0006] The second box sidewall has a first folding plate extending from one side. The outer periphery of the first folding plate extends to form a tongue assembly. The first folding plate is inserted into the inner side of the first box sidewall, and the first folding plate covers the perforation. The tongue assembly is inserted into the cut assembly to achieve the connection between the second box sidewall and the first box sidewall. By folding the tongue assembly relative to the first folding plate, the tongue assembly and the first folding plate together form a handle groove.

[0007] In some embodiments, a first box sidewall and a second box sidewall are integrally connected to form a box sidewall assembly, and the first folding plate is disposed on the second box sidewall on the side away from the first box sidewall.

[0008] The tongue and cut groups of the two box side wall assemblies are inserted and connected to form the perimeter side wall of the packaging box.

[0009] In some embodiments, the tongue assembly includes a first tongue extending along a first direction of the first folding plate, a second tongue extending along a second direction of the first folding plate, and a third tongue extending along a third direction of the first folding plate. The first folding plate extends along a fourth direction to form a connecting plate, and the first folding plate is integrally connected to the side wall of the second box through the connecting plate.

[0010] The incision group includes a first incision located in a first direction around the perforation, a second incision located in a second direction around the perforation, and a third incision located in a third direction around the perforation.

[0011] The first tongue is inserted into and engaged with the first cut, the second tongue is inserted into and engaged with the second cut, and the third tongue is inserted into and engaged with the third cut, thereby achieving the connection between the second box sidewall and the first box sidewall.

[0012] In some embodiments, the first tongue has a first set of creases arranged along the first direction, the second tongue has a second set of creases arranged along the second direction, the third tongue has a third set of creases arranged along the third direction, and the connecting plate has a fourth set of creases arranged along the fourth direction.

[0013] The first folding plate is pressed along the perforation toward the inside of the packaging box. The portion of the first tongue is bent along the first crease group to form the first side wall of the handle groove. The portion of the second tongue is bent along the second crease group to form the second side wall of the handle groove. The portion of the third tongue is bent along the third crease group to form the third side wall of the handle groove. The portion of the connecting plate is bent along the fourth crease group to form the fourth side wall of the handle groove. The first folding plate forms the bottom wall of the handle groove.

[0014] In some embodiments, the first tongue, the second tongue, and the third tongue each have a first snap-fit ​​portion at the end away from the first folding plate, and the first snap-fit ​​portion is used to snap-fit ​​with the corresponding cut in the cut group.

[0015] Wherein, the width of at least one of the first latch, the second latch, and the third latch is greater than the width of the corresponding cut in the cut group.

[0016] In some embodiments, the first latching portion of the second tongue is inserted into the second cut, and the two ends of the first latching portion protrude from the two side edges of the second cut, thereby achieving a latching state between the second tongue and the second cut;

[0017] The first latching portion of the first tongue is inserted into the first cut, and at least one end of the first latching portion protrudes from one side edge of the first cut, thereby achieving a latching state between the first tongue and the first cut.

[0018] The first locking portion of the third tongue is inserted into the third cut, and at least one end of the first locking portion protrudes from one side edge of the third cut, thereby achieving a locking state between the third tongue and the third cut.

[0019] In some embodiments, the end of the first snap-fit ​​portion away from the first protrusion is configured as a first tip.

[0020] In some embodiments, the packaging box further includes:

[0021] A top cover, wherein a fourth cut is provided on the top cover;

[0022] A fourth tongue is formed on the first box sidewall or the second box sidewall. The fourth tongue is inserted into and engaged with the fourth cut to achieve the connection between the first box sidewall and the top cover, or the connection between the second box sidewall and the top cover.

[0023] In some embodiments, the top cover includes a first top cover and a second top cover, wherein the first top cover is provided with a fourth slit A and the second top cover is provided with a fourth slit B;

[0024] The fourth tongue extends from the upper side of the first box sidewall;

[0025] The first top cover extends to the upper side of one of the second box side walls to form the first top cover, and the second top cover extends to the upper side of the other second box side wall to form the second top cover;

[0026] The first top cover and the second top cover are spliced ​​together to form the top wall of the packaging box. The fourth cut A and the fourth cut B together form the fourth cut. The fourth tongue is inserted into and engaged with the fourth cut.

[0027] In some embodiments, one end of the fourth tongue that is inserted into the fourth cut has a second locking portion, which is used to lock into the fourth cut.

[0028] The width of the second snap-fit ​​portion is greater than the width of the fourth cut.

[0029] In some embodiments, when the second snap-fit ​​portion is engaged with the fourth cut, both ends of the second snap-fit ​​portion protrude from the two side edges of the fourth cut.

[0030] In some embodiments, the end of the second snap-fit ​​portion away from the second protrusion is configured as a second tip.

[0031] In some embodiments, a locking groove is formed on the first top cover, and a locking hook is formed on the second top cover;

[0032] When the top of the packaging box is closed, the first top cover and the second top cover are engaged by the locking groove and the locking hook.

[0033] In some embodiments, the latching groove is configured as a latching groove piece protruding from the first top cover, and the latching groove piece is provided with a first crease, a second crease and a third crease;

[0034] The latch is constructed as a latch body protruding from the second top cover, and the latch body is provided with a fourth crease and a fifth crease.

[0035] The buckle groove with an insertion opening is formed by bending along the first crease, the second crease and the third crease;

[0036] The buckle is formed by bending along the fourth and fifth folds.

[0037] When the top of the packaging box is closed, the first and second top covers have their locking hooks inserted through the insertion port into the locking slot and engaged with the locking slot.

[0038] In some embodiments, the latching groove body is bent along the first fold and the second fold to form the first groove wall of the latching groove, bent along the second fold and the third fold to form the second groove wall of the latching groove, and bent along the third fold to form the third groove wall of the latching groove.

[0039] The first groove wall and the third groove wall are spaced apart to form the insertion port;

[0040] The latching hook body is bent along the fourth fold and the fifth fold to form the first hook wall of the latching hook, and bent along the fifth fold to form the second hook wall of the latching hook;

[0041] When the latch is located in the latch groove, the second hook wall abuts against the first groove wall, and the third groove wall abuts against the second top cover.

[0042] The solution provided by this utility model has the following advantages compared with the prior art:

[0043] The handle groove structure of the packaging box is designed as a sealed, embedded handle groove. This is achieved by setting perforations on the first side wall of the box and creating slits around the perforations. A first folding plate is installed on the side wall of the packaging box, with multiple arrow-shaped hinges on the first folding plate. Multiple tongues are inserted into the multiple slits, forming a mating connection. After the multiple tongues are inserted into the multiple slits, the first folding plate is pressed inwards along the perforations, thus forming a load-bearing groove. Because the first folding plate blocks the perforations, the handle groove structure seals the perforations on the packaging box, preventing dust and other external debris from entering and contaminating the product. While ensuring the packaging box is sealed, it is easier for the handler to directly insert their fingers into the groove. Furthermore, the distributed force distribution on each side wall of the groove largely avoids damage to the lifting position of the packaging box. Attached Figure Description

[0044] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0045] Figure 1 This is one of the internal schematic diagrams of a packaging box (with the handle groove structure pressed inward) shown in an embodiment of this utility model;

[0046] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0047] Figure 3 This is one of the schematic diagrams of the packaging box (with the handle groove structure not pressed inward) shown in the embodiment of this utility model;

[0048] Figure 4 This is the second schematic diagram of the packaging box (handle groove structure pressed inward) shown in this embodiment of the utility model;

[0049] Figure 5 This is the second internal schematic diagram of the packaging box (with the handle groove structure not pressed inward) shown in this embodiment of the utility model;

[0050] Figure 6 This is one of the schematic diagrams showing the unfolded packaging box in this embodiment of the present invention;

[0051] Figure 7 This is the second schematic diagram of the unfolded packaging box shown in this embodiment of the utility model;

[0052] Figure 8 This is a top view of the top cover shown in an embodiment of the present invention.

[0053] In the diagram: 1-First side wall of the box, 101-Perforation, 102-First cut, 103-Second cut, 104-Third cut, 105-Fourth tongue, 2-First folding plate, 201-First tongue, 202-Second tongue, 203-Third tongue, 204-Connecting plate, 205-First side wall, 206-Second side wall, 207-Third side wall, 208-Fourth side wall, 209-Bottom wall, 210-First snap-fit ​​part, 211-First tip, 3-Top cover, 301-First top cover, 3011-Lock groove. 3012 - First crease, 3013 - Second crease, 3014 - Third crease, 3015 - First groove wall, 3016 - Second groove wall, 3017 - Third groove wall, 302 - Second top cover, 3021 - Locking hook, 3022 - Fourth crease, 3023 - Fifth crease, 3024 - First hook wall, 3025 - Second hook wall, 303 - Fourth cut, 3031 - Fourth sub-cut A, 3032 - Fourth sub-cut B, 3033 - Second tip, 3034 - Second snap-fit ​​part, 4 - Second box side wall.

[0054] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0055] In the description of this utility model, it should be noted that the terms "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0056] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "contact," and "communication" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0057] Traditional cardboard boxes have handle holes on the side. When handling them, the cardboard with the handle holes alone can bear the lifting force, which is very easy to damage. The handle holes have weak load-bearing capacity, can easily cut hands, and can easily let dust in and contaminate the products inside the packaging.

[0058] Based on this, the following embodiments are proposed:

[0059] Example 1

[0060] like Figure 1 , Figures 3 to 7 As shown, this embodiment provides a packaging box, including:

[0061] A first box sidewall 1, a perforation 101 is provided on the first box sidewall 1, and a cut group is provided on the first box sidewall 1 and around the perforation 101.

[0062] The second box side wall 4 extends from one side to form a first folding plate 2. The outer periphery of the first folding plate 2 extends to form a tongue assembly. The first folding plate 2 is inserted into the inner side of the first box side wall 1. The first folding plate 2 covers the perforation 101. The tongue assembly is inserted into the cut assembly to realize the connection between the second box side wall 4 and the first box side wall 1. By folding the tongue assembly relative to the first folding plate 2, the tongue assembly and the first folding plate 2 together form a handle groove.

[0063] In this embodiment, the handle groove structure of the packaging box is designed as a sealed embedded handle groove. A perforation 101 is provided on the first side wall 1 of the box, and a slit group is provided on the outer periphery of the perforation 101. A first folding plate 2 is provided on the second side wall 4 of the packaging box, i.e., the cardboard flap. A tongue group corresponding to the slit group is provided on the first folding plate 2. The tongue group can be an arrow-shaped hinge. Multiple tongues in the tongue group are respectively embedded into multiple slits in the slit group, forming a mating connection with the multiple slits, thus realizing the connection between the second side wall 4 and the first side wall 1. After the multiple tongues are respectively embedded into the multiple slits, the first... The first folding plate 2, with its tongue portion bent along multiple folds to form multiple side walls of the handle groove, and the first folding plate 2 itself forming the bottom wall 209 of the handle groove, thus forming a force-bearing groove structure. Since the first folding plate 2 blocks the perforation 101, the handle groove structure seals the perforation 101 on the packaging box. By folding the tongue assembly relative to the first folding plate 2, the tongue assembly and the first folding plate 2 together form the handle groove. While ensuring the packaging box is sealed, it is more convenient for the carrier to directly insert their fingers into the groove. Moreover, the force-bearing method of each side wall of the groove is distributed, which also largely avoids damage to the lifting position of the packaging box.

[0064] When the handler needs to lift the handle groove, they can press the first folding plate 2, applying force along the perforation 101 towards the inside of the packaging box, causing the indentation line on the tongue of the tongue assembly to be recessed inward to form an embedded handle groove. Figure 4 As shown, the outermost indentation lines on the multiple tongues are aligned with the multiple cuts. The embedded handle groove ensures the sealing of the packaging box, facilitates manual handling of the carton, distributes the force, avoids damage to the lifting position of the carton, and achieves the functions of sealing and anti-theft of the packaging box.

[0065] The handle grooves in the packaging box design increase the contact area between the hands and the carton during handling, making it easier to move. The handle grooves are designed as an embedded structure by the cardboard flaps on the front or rear side, meaning that the handle grooves are formed on the front and rear sides of the packaging box, avoiding exposed through holes, ensuring the airtightness of the carton, and preventing dust and other external debris from entering and contaminating the product.

[0066] Optionally, in one implementation of this embodiment, such as Figure 7 As shown,

[0067] A first box sidewall 1 and a second box sidewall 4 are integrally connected to form a box sidewall assembly, and the first folding plate 2 is disposed on the second box sidewall 4 on the side away from the first box sidewall 1;

[0068] The tongue and cut groups of the two box side wall assemblies are inserted and connected to form the perimeter side wall of the packaging box.

[0069] In this embodiment, the tongue and cut groups of the two box side wall assemblies are respectively inserted to form the peripheral side walls of the packaging box. That is, the handle grooves are formed on the front and rear side walls of the packaging box, or the handle grooves can also be formed on the left and right side walls of the packaging box, so that the handler can lift the packaging box by the handle grooves with both hands. It is understood that not only two handle grooves can be provided, but four can be provided as needed, located on the four side walls of the packaging box respectively. The specific number of handle grooves is set according to actual needs and is not limited.

[0070] Optionally, in one implementation of this embodiment, such as Figure 1 , 3 As shown in -7

[0071] The tongue assembly includes a first tongue 201 extending along a first direction of the first folding plate 2, a second tongue 202 extending along a second direction of the first folding plate 2, and a third tongue 203 extending along a third direction of the first folding plate 2. The first folding plate 2 extends along a fourth direction to form a connecting plate 204. The first folding plate 2 is integrally connected to the second box side wall 4 through the connecting plate 204.

[0072] The incision group includes a first incision 102 located in a first direction around the perforation 101, a second incision 103 located in a second direction around the perforation 101, and a third incision 104 located in a third direction around the perforation 101.

[0073] The first tongue 201 is inserted into and engaged with the first cut 102, the second tongue 202 is inserted into and engaged with the second cut 103, and the third tongue 203 is inserted into and engaged with the third cut 104, thereby achieving the connection between the second box side wall 4 and the first box side wall 1.

[0074] Furthermore, the first tongue 201 has a first set of creases arranged along the first direction, the second tongue 202 has a second set of creases arranged along the second direction, the third tongue 203 has a third set of creases arranged along the third direction, and the connecting plate 204 has a fourth set of creases arranged along the fourth direction.

[0075] The first folding plate 2 is pressed along the perforation 101 toward the inside of the packaging box. A portion of the first tongue 201 is bent along the first crease group to form the first side wall 205 of the handle groove. A portion of the second tongue 202 is bent along the second crease group to form the second side wall 206 of the handle groove. A portion of the third tongue 203 is bent along the third crease group to form the third side wall 207 of the handle groove. A portion of the connecting plate 204 is bent along the fourth crease group to form the fourth side wall 208 of the handle groove. The first folding plate 2 forms the bottom wall 209 of the handle groove.

[0076] In this embodiment, the first folding plate 2 has a first tongue 201 extending in a first direction, a second tongue 202 extending in a second direction, a third tongue 203 extending in a third direction, and a connecting plate 204 extending in a fourth direction.

[0077] The first tongue 201 has a first set of creases arranged along a first direction, the second tongue 202 has a second set of creases arranged along a second direction, the third tongue 203 has a third set of creases arranged along a third direction, and the connecting plate 204 has a fourth set of creases arranged along a fourth direction.

[0078] The first, second, third, and fourth directions are all different;

[0079] The first folding plate 2 is designed such that: the first tongue 201 is inserted into and engaged with the first cut 102, the second tongue 202 is inserted into and engaged with the second cut 103, and the third tongue 203 is inserted into and engaged with the third cut 104, so that the first folding plate 2 covers the perforation 101.

[0080] Press the first folding plate 2 along the perforation 101 toward the inside of the packaging box. Part of the first tongue 201 bends along the first crease group to form the first side wall 205 of the handle groove. Part of the second tongue 202 bends along the second crease group to form the second side wall 206 of the handle groove. Part of the third tongue 203 bends along the third crease group to form the third side wall 207 of the handle groove. Part of the connecting plate 204 bends along the fourth crease group to form the fourth side wall 208 of the handle groove. The first folding plate 2 forms the bottom wall 209 of the handle groove.

[0081] In this embodiment, the handle groove structure of the packaging box is designed as a sealed embedded handle groove. A perforation 101 is provided on the first side wall 1 of the box, and a set of cuts, namely a first cut 102, a second cut 103, and a third cut 104, are provided around the perforation 101. A first folding plate 2 is provided on the side wall of the packaging box, i.e., on the cardboard flap. Three arrow-shaped hinges, namely a first tongue 201, a second tongue 202, and a third tongue 203, are provided on the first folding plate 2. The three tongues are respectively inserted into the three cuts, forming a mating connection. A connecting plate 204 is used to form an integral connection between the first folding plate 2 and the side wall of the packaging box. After the three tongues are respectively inserted into the three cuts, the first folding plate 2 is pressed towards the inside of the packaging box along the perforation 101. The first sidewall 205 of the handle groove is formed by bending along the first fold group; the second sidewall 206 of the handle groove is formed by bending along the second fold group; the third sidewall 207 of the handle groove is formed by bending along the third fold group; the fourth sidewall 208 of the handle groove is formed by bending along the fourth fold group; and the bottom wall 209 of the handle groove is formed by the first fold plate 2. Thus, the handle groove structure forms a load-bearing groove. Since the first fold plate 2 blocks the perforation 101, the handle groove structure seals the perforation 101 on the packaging box. While ensuring the packaging box is sealed, it is more convenient for the carrier to directly insert their fingers into the groove. Moreover, the stress is distributed on each sidewall of the groove, which also largely avoids damaging the lifting position of the packaging box.

[0082] More specifically, such as Figure 6 , 7 As shown, the first tongue 201 has a first set of three creases arranged along a first direction; the second tongue 202 has a second set of three creases arranged along a second direction; the third tongue 203 has a third set of three creases arranged along a third direction; and the connecting plate 204 has a fourth set of two creases arranged along a fourth direction. When assembling the handle groove structure on the packaging box, each tongue is inserted into the corresponding cut, so that the middle creases on the three tongues are aligned with the three cuts respectively. Figure 3 As shown, the handle structure is flush with the side wall of the packaging box at this time.

[0083] When the handler needs to lift the handle groove, they can press the first folding plate 2, applying force along the perforation 101 towards the inside of the packaging box, causing the indentation lines on the three tongues and the indentation lines on the connecting plate 204 to indent inward, forming an embedded handle groove. Figure 4As shown, the outermost indentation lines on the three tongues are aligned with the three cuts. The width of the first cut 102 is greater than the width of the first tongue 201, and the width of the third cut 104 is greater than the width of the third tongue 203, facilitating tongue insertion and allowing for tongue movement distance during handle groove forming. The embedded handle groove ensures the box's airtightness, facilitates manual handling, distributes force, avoids damaging the box's lifting position, and achieves both airtightness and anti-theft functionality.

[0084] The handle grooves in the packaging box design increase the contact area between the hands and the carton during handling, making it easier to move. The handle grooves are designed as an embedded structure by the cardboard flaps on the front or rear side, meaning that the handle grooves are formed on the front and rear sides of the packaging box, avoiding exposed through holes, ensuring the airtightness of the carton, and preventing dust and other external debris from entering and contaminating the product.

[0085] Optionally, in one implementation of this embodiment, such as Figure 7 As shown,

[0086] The first folding plate 2 is constructed as a square plate, and the first tongue 201, the second tongue 202, the third tongue 203 and the connecting plate 204 are located at the four edges of the first folding plate 2 respectively.

[0087] In this embodiment, the first tongue 201 and the third tongue 203 are respectively disposed on the upper edge and the lower edge of the first folding plate 2, and the first tongue 201 and the third tongue 203 are symmetrical. The second tongue 202 and the connecting plate 204 are respectively disposed on the left edge and the right edge of the first folding plate 2, and the second tongue 202 and the connecting plate 204 are symmetrical. Thus, the handle groove structure forms a square force-bearing groove. Since the first folding plate 2 blocks the perforation 101, the handle groove structure seals the perforation 101 on the packaging box. While ensuring the packaging box is sealed, it is more convenient for the carrier to directly insert their fingers into the groove. Moreover, the side walls of the groove are distributed in a force-bearing manner, that is, the first side wall 205, the second side wall 206, the third side wall 207 and the fourth side wall 208 will each bear part of the weight of the packaging box, which largely avoids damaging the lifting position of the packaging box.

[0088] Optionally, in one implementation of this embodiment, such as Figure 1 As shown,

[0089] The first tongue 201, the second tongue 202 and the third tongue 203 each have a first snap-fit ​​portion 210 at the end away from the first folding plate 2. The first snap-fit ​​portion 210 is used to snap-fit ​​with the corresponding cut in the cut group.

[0090] Wherein, the width of at least one of the first latching portion 210 among the first latch 201, the second latch 202, and the third latch 203 is greater than the width of the corresponding cut in the cut group.

[0091] Furthermore, the first latching portion 210 of the second tongue 202 is inserted into the second cut 103, and the two ends of the first latching portion 210 protrude from the two side edges of the second cut 103 respectively, so as to realize the latching state between the second tongue 202 and the second cut 103.

[0092] The first latching portion 210 of the first tongue 201 is inserted into the first cut 102, and at least one end of the first latching portion 210 protrudes from one side edge of the first cut 102, thereby achieving the latching state between the first tongue 201 and the first cut 102.

[0093] The first latching portion 210 of the third tongue 203 is inserted into the third cut 104, and at least one end of the first latching portion 210 protrudes from one side edge of the third cut 104, thereby achieving a latching state between the third tongue 203 and the third cut 104.

[0094] Preferably, the end of the first snap-fit ​​portion 210 away from the first protrusion is configured as a first tip 211.

[0095] In this embodiment, the sides of the first latch 201, the second latch 202, and the third latch 203 away from the first folding plate 2 are designed in an arrow shape. That is, the first tip 211 of the first engaging portion 210 away from the first protruding portion is the tip of the arrow, and the end of the first engaging portion 210 near the first folding plate 2 is the first protruding portion, which is the root of the arrow. This first protruding portion is designed to protrude at both ends. This design facilitates the insertion of the first latch 201, the second latch 202, and the third latch 203 into the first cut 102, the second cut 103, and the third cut 103, respectively. The third cut 104 can be understood as follows: although the width of the first locking part 210 is larger than the corresponding cut, it can be inserted into the corresponding cut by slightly bending and deforming. After being inserted into the cut, the first locking part 210 restores its deformation, thereby forming a locking with the edge of the corresponding cut. When the tongue is inserted into the corresponding cut, both ends of the first locking part are locked with both ends of the corresponding cut, or one end of the first locking part is locked with the corresponding cut, so that the arrow-shaped tongue can be inserted into the corresponding cut. The locking point between the first locking part and the corresponding cut only needs to meet the requirement of preventing the tongue from coming out of the corresponding cut.

[0096] Optionally, in one implementation of this embodiment, such as Figure 1 , Figure 3-8 As shown, the packaging box also includes:

[0097] Top cover 3, the top cover 3 is provided with a fourth cut 303;

[0098] A fourth tongue 105 is formed on the first box side wall 1 or the second box side wall 4. The fourth tongue 105 is inserted into and engaged with the fourth cut 303 to realize the connection between the first box side wall 1 and the top cover 3, or the connection between the second box side wall 4 and the top cover 3.

[0099] Furthermore, the top cover 3 includes a first top cover 301 and a second top cover 302. The first top cover 301 is provided with a fourth slit A3031, and the second top cover 302 is provided with a fourth slit B3032.

[0100] The fourth tongue 105 extends from the upper side of the first box sidewall 1;

[0101] The first top cover 301 extends from the upper side of one second box sidewall 4 and the second top cover 302 extends from the upper side of the other second box sidewall 4.

[0102] The first top cover 301 and the second top cover 302 are spliced ​​together to form the top wall of the packaging box. The fourth cut A3031 and the fourth cut B3032 together form the fourth cut 303. The fourth tongue 105 is inserted into and engaged with the fourth cut 303.

[0103] In this embodiment, the sidewalls of the packaging box include a first sidewall 1 that is opposite to each other along the width direction of the packaging box and a second sidewall 4 that is opposite to each other along the length direction of the packaging box;

[0104] A fourth tongue 105 is formed on the side wall 1 of both first boxes;

[0105] The first top cover 301 is formed on one second box side wall 4, and the second top cover 302 is formed on another second box side wall 4;

[0106] The fourth slit A3031, the fourth slit B3032 and the fourth tongue 105 are designed such that when the first top cover 301 and the second top cover 302 are in the closed top state of the packaging box, the fourth slit A3031 and the fourth slit B3032 together form the fourth slit 303, and the fourth tongue 105 is inserted into and engaged with the fourth slit 303.

[0107] With the increasing global awareness of environmental protection and the advancement of sustainable development strategies, green development has become an important trend in the world economy. Domestic and international demands require all industries to accelerate green transformation and have issued relevant plastic bans. Under this backdrop of green development, traditional cardboard packaging uses a large amount of non-degradable plastic products such as adhesive tape, which easily causes environmental pollution and requires manual operation, resulting in low efficiency. In this embodiment, the proposed packaging box uses a fourth tongue 105 and a fourth cut 303 to achieve sealing, eliminating the need for any sealing tape, preventing plastic pollution, saving costs, improving packaging efficiency, and achieving full recyclability of packaging materials.

[0108] In this embodiment, if the side wall of the packaging box is formed by the first box side wall 1 and the second box side wall 4, then... Figure 3 As shown, there are two first box side walls 1, which serve as the left and right side walls of the packaging box. There are also two second box side walls 4, which serve as the front and rear side walls of the packaging box. A handle groove structure is formed on each of the left and right side walls. A fourth tongue 105 is formed on each of the two first box side walls 1. A first top cover 301 is integrally connected to one second box side wall 4, and a second top cover 302 is integrally connected to the other second box side wall 4. When the top of the packaging box is closed, the first top cover 301 and the second top cover 302 form a fourth cut 303 together with the fourth cut A3031 and the fourth cut B3032. The fourth tongue 105 is inserted into and engaged with the fourth cut 303. If the side wall of the packaging box is completely enclosed by the first box side wall 1, then the number of first box side walls 1 is 4. The four first box side walls 1 serve as the front, back, left and right side walls of the packaging box. Each of the front, back, left and right side walls has a handle groove structure. The first top cover 301 and the second top cover 302 are integrally connected to the two symmetrical first side walls 1 respectively. The fourth tongue 105 is integrally connected to the other two symmetrical first side walls 1 respectively.

[0109] The aforementioned packaging box features a top-mounted flap locking structure with inner flap fixing tongue plates on both sides. Specifically, a fourth tongue 105 is formed on each of the two first box side walls 1. An outer flap is designed with a fixing tongue groove; a first top cover 301 is integrally connected to one second box side wall 4, and a second top cover 302 is integrally connected to the other second box side wall 4. When the top of the packaging box is closed, the first top cover 301 and the second top cover 302 together form a fourth cut 303, with the fourth cut A3031 and the fourth cut B3032. The inner flap fixing tongue plates are inserted from the outside into the flap fixing tongue groove, meaning the fourth tongue 105 is inserted and engaged in the fourth cut 303, achieving self-locking. This allows the flap tongues on both sides of the top to be inserted into the limiting cuts of the front and rear flaps to seal the box, thus giving the packaging box a self-locking and anti-theft function, suitable for product packaging requiring anti-theft and sealing features. The packaging box proposed in this embodiment is formed by folding cardboard and achieves self-locking through a nested structure design.

[0110] Optionally, in one implementation of this embodiment, such as Figures 6 to 8 As shown,

[0111] The end of the fourth tongue 105 that is inserted into the fourth cut 303 has a second snap-fit ​​portion 3034, which is used to snap-fit ​​with the fourth cut 303.

[0112] The width of the second snap-fit ​​portion 3034 is greater than the width of the fourth cutout 303.

[0113] Furthermore, when the second snap-fit ​​portion 3034 is engaged with the fourth cutout 303, both ends of the second snap-fit ​​portion 3034 protrude from the two side edges of the fourth cutout 303.

[0114] Preferably, the end of the second snap-fit ​​portion 3034 away from the second protrusion is configured as a second tip 3033.

[0115] In this embodiment, the fourth latch 105 is designed in an arrow shape, meaning that the second tip 3033 of the second latching portion 3034, away from the second protruding portion, is the tip of an arrow. The end of the second latching portion 3034 near the fourth latch 105 is the second protruding portion, which is the root of an arrow. This second protruding portion is designed with both ends protruding. This design facilitates the insertion of the fourth latch 105 into the fourth cut 303. The two ends of the second latching portion 3034 are engaged with the two ends of the fourth cut 303. The fourth latch 105 is easily inserted into the fourth cut 303 while not easily dislodging from it, thus achieving an effective self-locking function. It can be understood that although the width of the second latching portion 3034 is greater than that of the fourth cut 303, it can be inserted into the fourth cut 303 by slightly bending and deforming. After insertion into the fourth cut 303, the second latching portion 3034 returns to its original shape, thereby forming a latch with the edge of the corresponding fourth cut 303.

[0116] Optionally, in one implementation of this embodiment, such as Figures 6 to 8 As shown,

[0117] The first top cover 301 has a locking groove 3011, and the second top cover 302 has a locking hook 3021.

[0118] When the top of the packaging box is closed, the locking groove 3011 and the locking hook 3021 engage.

[0119] In this embodiment, a hidden locking structure is designed on the top cover 3 of the packaging box. The locking structure consists of a locking groove 3011 and a locking hook 3021, which not only provides anti-theft functionality, but also ensures that the surface of the packaging box is flat when locked. The locking structure is completely hidden inside the packaging box, making it difficult for people to notice and thus difficult for people to attempt to break it.

[0120] The packaging box provided in this embodiment, through improvements to the cardboard forming structure, enables the packaging box to have both dustproof and anti-theft functions, and is easy to handle, ensuring its safety and stability during storage and transportation.

[0121] Optionally, in one implementation of this embodiment, such as Figure 1 , 2 As shown in Figure 6,

[0122] The latching groove 3011 is constructed as a latching groove piece protruding from the first top cover 301, and the latching groove piece is provided with a first crease 3012, a second crease 3013 and a third crease 3014.

[0123] The latch hook 3021 is constructed as a latch hook piece protruding from the second top cover 302, and the latch hook piece is provided with a fourth crease 3022 and a fifth crease 3023;

[0124] The locking groove 3011 with an insertion opening is formed by bending along the first fold 3012, the second fold 3013 and the third fold 3014;

[0125] The latch hook 3021 is formed by bending along the fourth fold 3022 and the fifth fold 3023;

[0126] When the top of the packaging box is closed, the first top cover 301 and the second top cover 302 have their locking hooks 3021 inserted into the locking groove 3011 through the insertion port and engaged with the locking groove 3011.

[0127] Furthermore, the first crease 3012 and the second crease 3013 are bent to form the first groove wall 3015 of the latch groove 3011, the second crease 3013 and the third crease 3014 are bent to form the second groove wall 3016 of the latch groove 3011, and the third crease 3014 is bent to form the third groove wall 3017 of the latch groove 3011;

[0128] The first groove wall 3015 and the third groove wall 3017 are spaced apart to form the insertion port;

[0129] The fourth crease 3022 and the fifth crease 3023 are bent to form the first hook wall 3024 of the latch hook 3021, and the fifth crease 3023 is bent to form the second hook wall 3025 of the latch hook 3021.

[0130] When the latch hook 3021 is located in the latch groove 3011, the second hook wall 3025 abuts against the first groove wall 3015, and the third groove wall 3017 abuts against the second top cover 302.

[0131] In this embodiment, as Figure 2 As shown, the latch groove 3011 is bent along the first fold 3012, the second fold 3013 and the third fold 3014 to form a groove structure with an insertion port. The groove structure includes a first groove wall 3015, a second groove wall 3016 and a third groove wall 3017. The first groove wall 3015 and the third groove wall 3017 have a gap to form an insertion port. The first groove wall 3015, the second groove wall 3016 and the third groove wall 3017 form a V-shaped groove structure.

[0132] The latch hook 3021 is bent along the fourth fold 3022 and the fifth fold 3023 to form a hook structure. The hook structure includes a first hook wall 3024 and a second hook wall 3025, and the first hook wall 3024 and the second hook wall 3025 form a V-shaped hook structure.

[0133] The locking groove 3011 and locking hook 3021 are designed such that when the first top cover 301 and the second top cover 302 are in the closed packaging box state, the hook structure enters the groove structure through the insertion port and is locked into the groove structure.

[0134] The V-hook structure utilizes the resilience of the cardboard at the crease to insert into the V-groove structure, allowing the two outer flaps, namely the first top cover 301 and the second top cover 302, to lock together. Furthermore, the locking groove 3011 and the locking hook 3021 are both hidden inside the packaging box, making them difficult to detect. Only by using force to break the packaging box can the product inside be opened, thus achieving the anti-theft requirement.

[0135] When sealing the box, first insert the latch hook 3021 on the second top cover 302 into the latch groove 3011 through the insertion port and lock it into the latch groove 3011, thereby locking the outer flap consisting of the first top cover 301 and the second top cover 302. Then insert the fixing tongue plate on the inner flap, that is, the fourth tongue 105 on the inner flap, along the fourth cut 303 of the outer flap to complete the sealing operation.

[0136] In conclusion, the ingenious design of the packaging box lies in:

[0137] First, the handle groove structure of the packaging box is designed as a sealed, embedded handle groove. This is achieved by setting perforations on the side wall of the first box and setting a set of cuts around the perforations. A first folding plate is set on the side wall of the packaging box, and three arrow-shaped hinges are set on the first folding plate. The three latches are respectively inserted into the three cuts to form a mating connection with the three cuts. After the three latches are respectively inserted into the three cuts, the first folding plate is pressed along the perforations towards the inside of the packaging box. Thus, the handle groove structure forms a force-bearing groove. Since the first folding plate blocks the perforations, the handle groove structure seals the perforations on the packaging box, preventing dust and other external debris from entering and contaminating the product. While ensuring the packaging box is sealed, it is more convenient for the handler to directly insert their fingers into the groove. Moreover, the force is distributed on each side wall of the groove, which also largely avoids damage to the lifting position of the packaging box.

[0138] Secondly, the packaging box features a hinged lid locking structure at the top. The hinged lid tongues on both sides of the top are inserted into the limiting cuts of the front and rear hinged lids to seal the box, thus giving it self-locking and anti-theft functions. It can be used for product packaging requiring anti-theft and sealing features. The packaging box is made of folded cardboard, and its self-locking is achieved through a nested structure. The left and right sides have inner hinged lid fixing tongue plates on the top of the box, and the outer hinged lid has a fixing tongue groove. The inner hinged lid fixing tongue plates are inserted from the outside into the fixing tongue groove to achieve self-locking.

[0139] Third, a concealed locking structure is designed on the top lid of the packaging box. This not only provides anti-theft functionality but also ensures that the surface of the box remains flat when locked. The locking structure is completely hidden inside the box, making it difficult to detect and thus harder to break. Through improvements to the cardboard forming structure, the packaging box combines dustproof and anti-theft functions with ease of handling, ensuring its safety and stability during storage and transportation.

[0140] Fourth, the V-shaped hook structure utilizes the resilience of the cardboard at the crease to insert into the V-shaped groove structure, so that the outer flaps lock together. Moreover, the locking groove and locking hook are hidden inside the packaging box, making them difficult to discover. It is necessary to use force to break the packaging box to open it and obtain the product inside, thus achieving better anti-theft requirements.

[0141] It can be further understood that in this disclosure, "multiple" refers to two or more items, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0142] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0143] It is further understood that although operations are described in a specific order in the accompanying drawings in the embodiments of this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to be performed to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0144] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0145] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A packaging box, characterized in that, include: The first box side wall (1) has a perforation (101) and a cut group is provided on the first box side wall (1) and on the outer periphery of the perforation (101); The second box sidewall (4) extends to form a first folding plate (2) on one side. The outer periphery of the first folding plate (2) extends to form a tongue group. The first folding plate (2) is inserted into the inner side of the first box sidewall (1). The first folding plate (2) covers the perforation (101). The tongue group is inserted into the cut group to realize the connection between the second box sidewall (4) and the first box sidewall (1). By folding the tongue group relative to the first folding plate (2), the tongue group and the first folding plate (2) together form a handle groove.

2. The packaging box according to claim 1, characterized in that, A first box sidewall (1) and a second box sidewall (4) are integrally connected to form a box sidewall assembly, and the first folding plate (2) is disposed on the second box sidewall (4) on the side away from the first box sidewall (1); The tongue and cut groups of the two box side wall assemblies are inserted and connected to form the perimeter side wall of the packaging box.

3. The packaging box according to claim 1 or 2, characterized in that, The tongue assembly includes a first tongue (201) extending along a first direction of the first folding plate (2), a second tongue (202) extending along a second direction of the first folding plate (2), and a third tongue (203) extending along a third direction of the first folding plate (2). The first folding plate (2) extends along a fourth direction to form a connecting plate (204). The first folding plate (2) is integrally connected to the second box side wall (4) through the connecting plate (204). The incision group includes a first incision (102) located in a first direction around the perforation (101), a second incision (103) located in a second direction around the perforation (101), and a third incision (104) located in a third direction around the perforation (101). The first tongue (201) is inserted into and engaged with the first cut (102), the second tongue (202) is inserted into and engaged with the second cut (103), and the third tongue (203) is inserted into and engaged with the third cut (104), thereby achieving the connection between the second box sidewall (4) and the first box sidewall (1).

4. The packaging box according to claim 3, characterized in that, The first tongue (201) has a first set of creases arranged along the first direction, the second tongue (202) has a second set of creases arranged along the second direction, the third tongue (203) has a third set of creases arranged along the third direction, and the connecting plate (204) has a fourth set of creases arranged along the fourth direction. Press the first folding plate (2) along the perforation (101) toward the inside of the packaging box. Part of the first tongue (201) bends along the first crease group to form the first side wall (205) of the handle groove. Part of the second tongue (202) bends along the second crease group to form the second side wall (206) of the handle groove. Part of the third tongue (203) bends along the third crease group to form the third side wall (207) of the handle groove. Part of the connecting plate (204) bends along the fourth crease group to form the fourth side wall (208) of the handle groove. The first folding plate (2) forms the bottom wall (209) of the handle groove.

5. The packaging box according to claim 3, characterized in that, The first tongue (201), the second tongue (202) and the third tongue (203) each have a first snap-fit ​​portion (210) at the end away from the first folding plate (2), and the first snap-fit ​​portion (210) is used to snap-fit ​​with the corresponding cut in the cut group; Wherein, the width of at least one of the first latching portion (210) among the first latch (201), the second latch (202), and the third latch (203) is greater than the width of the corresponding cut in the cut group.

6. The packaging box according to claim 5, characterized in that, The first latching part (210) of the second tongue (202) is inserted into the second cut (103), and the two ends of the first latching part (210) protrude from the two sides of the second cut (103) respectively, so as to realize the latching state between the second tongue (202) and the second cut (103); The first latch (210) of the first tongue (201) is inserted into the first cut (102), and at least one end of the first latch (210) protrudes from one side edge of the first cut (102), thereby achieving the latching state between the first tongue (201) and the first cut (102). The first snap-fit ​​portion (210) of the third tongue (203) is inserted into the third cut (104), and at least one end of the first snap-fit ​​portion (210) protrudes from one side edge of the third cut (104), thereby achieving a snap-fit ​​state between the third tongue (203) and the third cut (104).

7. The packaging box according to claim 1, characterized in that, The packaging box also includes: Top cover (3), the top cover (3) is provided with a fourth cut (303); A fourth tongue (105) is formed on the first box sidewall (1) or the second box sidewall (4). The fourth tongue (105) is inserted into and engaged with the fourth cut (303) to realize the connection between the first box sidewall (1) and the top cover (3), or the connection between the second box sidewall (4) and the top cover (3).

8. The packaging box according to claim 7, characterized in that, The top cover (3) includes a first top cover (301) and a second top cover (302). The first top cover (301) is provided with a fourth slit A (3031), and the second top cover (302) is provided with a fourth slit B (3032). The fourth tongue (105) extends from the upper side of the first box sidewall (1); The first top cover (301) extends from the upper side of one of the second box sidewalls (4) to form the first top cover (301), and the second top cover (302) extends from the upper side of the other second box sidewall (4). The first top cover (301) and the second top cover (302) are spliced ​​together to form the top wall of the packaging box. The fourth cut A (3031) and the fourth cut B (3032) together form the fourth cut (303). The fourth tongue (105) is inserted into and engaged in the fourth cut (303).

9. The packaging box according to claim 7, characterized in that, The fourth tongue (105) has a second locking part (3034) at one end inserted into the fourth cut (303), and the second locking part (3034) is used to lock with the fourth cut (303); The width of the second snap-fit ​​portion (3034) is greater than the width of the fourth cut (303).

10. The packaging box according to claim 8, characterized in that, The first top cover (301) has a locking groove (3011) and the second top cover (302) has a locking hook (3021). When the top of the packaging box is closed, the locking groove (3011) and the locking hook (3021) engage.

11. The packaging box according to claim 10, characterized in that, The latching groove (3011) is constructed as a latching groove piece protruding from the first top cover (301), and the latching groove piece is provided with a first crease (3012), a second crease (3013) and a third crease (3014). The latch hook (3021) is constructed as a latch hook piece protruding from the second top cover (302), and the latch hook piece is provided with a fourth crease (3022) and a fifth crease (3023). The latch groove (3011) with an insertion opening is formed by bending along the first crease (3012), the second crease (3013) and the third crease (3014). The buckle hook (3021) is formed by bending along the fourth fold (3022) and the fifth fold (3023). When the top of the packaging box is closed, the first top cover (301) and the second top cover (302) have their locking hooks (3021) inserted into the locking groove (3011) through the insertion port and engaged in the locking groove (3011).

12. The packaging box according to claim 11, characterized in that, The latching plate is bent along the first fold (3012) and the second fold (3013) to form the first groove wall (3015) of the latching groove (3011), bent along the second fold (3013) and the third fold (3014) to form the second groove wall (3016) of the latching groove (3011), and bent along the third fold (3014) to form the third groove wall (3017) of the latching groove (3011). The first groove wall (3015) and the third groove wall (3017) are spaced apart to form the insertion port; The latch hook body is bent along the fourth fold (3022) and the fifth fold (3023) to form the first hook wall (3024) of the latch hook (3021), and bent along the fifth fold (3023) to form the second hook wall (3025) of the latch hook (3021). When the latch hook (3021) is located in the latch groove (3011), the second hook wall (3025) abuts against the first groove wall (3015), and the third groove wall (3017) abuts against the second top cover (302).

Images