Packaging box capable of preventing secondary packaging
By incorporating multiple locking mechanisms within the packaging box, the problem of existing packaging boxes being easily opened illegally and resealed is solved, achieving efficient protection against resealing and ensuring stability, thus guaranteeing product safety and consumer rights.
Patent Information
- Application Number
- CN202520858545.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-20
- Estimated Expiration
- 2035-04-30
AI Technical Summary
Existing packaging box sealing methods are susceptible to temperature and humidity fluctuations, posing a risk of unauthorized opening and resealing, and thus failing to effectively guarantee product quality and consumer rights.
The packaging box is made from a single piece of cardboard and features a first locking structure, a second locking structure, and a third locking structure to prevent the sides, bottom, and top of the packaging box from separating, respectively. The combination of multiple components forms a continuous seal, and the locking structure is located inside the packaging box, making it difficult to open from the outside.
It improves the anti-re-sealing effect of the packaging box, enhances its stability and anti-tampering performance, and leaves obvious marks when forcibly opened, effectively preventing re-sealing and protecting consumer rights.
Smart Images
Figure CN224014156U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to packing box technical field especially relates to a packing box of preventing secondary packaging. BACKGROUND
[0002] In the production, transportation and sale process of commodities, the integrity and safety of packaging are the key factors to guarantee product quality, maintain consumer rights and interests and brand image. However, the current commonly used ordinary sealing methods, such as adhesive tape sticking, self-locking bottom with interlocking flap and adhesive, have obvious defects.
[0003] The sealing method of ordinary adhesive tape sticking is susceptible to temperature and humidity, which leads to reduced adhesion, and there is a risk of illegal opening. After the adhesive tape is removed, the package can be resealed without leaving any trace. The structure of the self-locking bottom interlocking flap forms a self-locking through the "insertion" and "plug" steps. However, this structure is single in the direction of force, such as reverse pressing, and can be easily opened. Once the packaging box is opened, it is relatively easy to interlock again, which cannot prevent secondary packaging. Products using this kind of packaging box are at risk of being illegally opened and replaced during transportation and sale, which seriously endangers consumer rights and interests. SUMMARY
[0004] In view of the above-mentioned defects or deficiencies in the prior art, the utility model provides a packing box for preventing secondary packaging.
[0005] To achieve the above-mentioned purpose, the utility model discloses a packing box for preventing secondary packaging, which is folded from a whole piece of paperboard with longitudinal and transverse creases, comprising:
[0006] The first, second and third locking structures are provided on the paperboard. When the paperboard is folded to form the packing box, the first locking structure is used to prevent the paperboard at the side of the packing box from separating, the second locking structure is used to prevent the paperboard at the bottom of the packing box from separating, and the third locking structure is used to prevent the paperboard at the top of the packing box from separating.
[0007] When the packing box is formed, the first, second and third locking structures are located inside the packing box.
[0008] Preferably, the paperboard comprises a front plate, a first side plate, a rear plate and a second side plate fixedly connected in sequence, and the longitudinal creases are arranged between the front plate, the first side plate, the rear plate and the second side plate.
[0009] A first bottom plate is fixedly connected to the bottom of the front plate, a second bottom plate is fixedly connected to the bottom of the first side plate, and the transverse creases are arranged between the first bottom plate and the front plate and between the second bottom plate and the first side plate.
[0010] The second locking structure comprises a first crease arranged transversely on the first bottom plate, a first slot arranged vertically on the second bottom plate, and a first limiting plate arranged on the top of the first side plate, the transverse crease being arranged between the first limiting plate and the first side plate, and a second crease being arranged transversely on the first limiting plate;
[0011] When the first bottom plate and the second bottom plate are folded, the first bottom plate is used to be folded through the first crease to be inserted into the first slot, and when the first limiting plate is folded, the first limiting plate is used to clamp the first bottom plate to the second bottom plate through the second crease.
[0012] Preferably, a first top plate is fixedly connected to the top of the front plate, a second top plate is fixedly connected to the top of the rear plate, and the transverse crease is arranged between the first top plate and the front plate and between the second top plate and the rear plate;
[0013] The third locking structure comprises a second slot and a second limiting plate, the second slot being arranged transversely at the connection between the first top plate and the front plate, and the second limiting plate being fixedly connected to the top of the second top plate and having the transverse crease arranged at the connection between the two;
[0014] The length of the second limiting plate is greater than the length of the second slot, and when the first top plate and the second top plate are folded, the second limiting plate is used to be inserted into the second slot to make the first top plate and the second top plate fit together.
[0015] Preferably, the first locking structure comprises a third limiting plate, a fourth limiting plate and a third slot;
[0016] The third limiting plate is fixedly connected to the side of the front plate and has the longitudinal crease arranged at the connection between the two, the third slot is arranged vertically at the connection between the third limiting plate and the front plate, the fourth limiting plate is fixedly connected to the side of the second side plate and has the longitudinal crease arranged at the connection between the two, and the length of the fourth limiting plate is greater than the length of the third slot;
[0017] When the front plate, the first side plate, the rear plate and the second side plate are folded, the fourth limiting plate is used to be inserted into the third slot to make the front plate and the second side plate fixedly connected, and the third limiting plate, the fourth limiting plate and the third slot are completely located in the packaging box.
[0018] Preferably, a third bottom plate is fixedly connected to the bottom of the rear plate, a fourth bottom plate is fixedly connected to the bottom of the second side plate, the transverse folds are arranged between the third bottom plate and the rear plate and between the fourth bottom plate and the second side plate, a third fold is arranged transversely on the third bottom plate, and a fourth slot is arranged vertically on the fourth bottom plate;
[0019] The second locking structure further comprises a fifth limiting plate arranged on the top of the second side plate, and the transverse folds are arranged between the fifth limiting plate and the second side plate, and a fourth fold is arranged transversely on the fifth limiting plate;
[0020] When the first bottom plate, the second bottom plate, the third bottom plate and the fourth bottom plate are folded, the first slot and the fourth slot are arranged correspondingly, the first bottom plate is inserted into the first slot and the fourth slot through the first fold and the third fold, and the first limiting plate is folded through the second fold and the fifth limiting plate is folded through the fourth fold to press the first bottom plate and the third bottom plate.
[0021] Preferably, the third locking structure further comprises a fifth slot and a sixth limiting plate, the fifth slot is arranged transversely between the first limiting plate and the first side plate and between the fifth limiting plate and the second side plate respectively, and the sixth limiting plate is arranged on both sides of the first top plate and the longitudinal fold is arranged therebetween;
[0022] When the first top plate is folded, the sixth limiting plate is inserted into the fifth slot.
[0023] Preferably, the second limiting plate comprises a first insertion part and a first limiting part, the first insertion part is fixedly connected to the top of the rear plate, the first limiting part is fixedly connected to both sides of the first insertion part, and the length of the first insertion part is equal to the length of the second slot;
[0024] The fourth limiting plate comprises a second insertion part and a second limiting part, the second insertion part is fixedly connected to the side of the second side plate, the second limiting part is fixedly connected to both sides of the second insertion part, and the length of the second insertion part is equal to the length of the third slot.
[0025] Preferably, the first limiting plate comprises a first folding part and a first abutting part, the first folding part is fixedly connected to the top of the first side plate, the first abutting part is fixedly connected to the top of the first folding part, and the second fold is arranged between the first folding part and the first abutting part;
[0026] The height of the first folding part is equal to the height of the first side plate;
[0027] The fifth limiting plate comprises a second folding part and a second abutting part, the second folding part is fixedly connected with the top of the second side plate, the second abutting part is fixedly connected with the top of the second folding part, and the fourth crease is arranged between the second folding part and the second abutting part.
[0028] The height of the second folding part is equal to the height of the second side plate.
[0029] Preferably, an opening is arranged on the first top plate, and the opening is arranged close to the top of the first top plate.
[0030] Preferably, a tear line is arranged on the top of the packaging box, and the tear line is used for opening the top of the packaging box.
[0031] Based on this, the utility model has the advantages that:
[0032] 1. Through the scheme of the utility model, by arranging the first locking structure, the second locking structure and the third locking structure integrated with the paperboard, a coherent and rigorous packaging process is formed through cooperation of the components once, so that secondary packaging can be effectively prevented in each link, and after the packaging box is formed, the first locking structure, the second locking structure and the third locking structure are all located in the packaging box and cannot be disassembled from the outside, and when the packaging box is forcibly opened, the components are damaged and cannot be re-packaged, thereby improving the effect of preventing secondary packaging.
[0033] 2. Through the scheme of the utility model, the first bottom plate is folded and inserted into the first slot, and the first limiting plate is folded and pressed tightly, so as to form a reinforcing structure in which the side surface and the bottom surface are restricted each other, the structure not only enhances the stability of the whole, but also can resist external force from two directions of the side surface and the bottom surface, improves the anti-disassembly performance of the packaging box, and meanwhile, the packaging box is difficult to disassemble, and when the packaging box is forcibly opened, the first limiting plate is damaged and obvious traces are left, thereby effectively preventing secondary packaging.
[0034] 3. Through the scheme of the utility model, the second limiting plate is inserted into the second slot, and the fourth limiting plate is inserted into the third slot, so that the packaging box can be packaged while the effect of preventing secondary packaging of the packaging box is effectively improved, and when the packaging box is forcibly opened, the second limiting plate and the fourth limiting plate are damaged and difficult to restore to the original state, and obvious traces can be left. BRIEF DESCRIPTION OF DRAWINGS
[0035] Other characteristics, objects and advantages of the application will become more apparent upon reading the following detailed description of non-restrictive embodiments, made with reference to the attached drawings:
[0036] Figure 1 The figure schematically shows a plan view of disassembly of a packaging box according to an embodiment of the utility model.
[0037] Figure 2 A packaging diagram schematically showing a bottom of a packaging box according to an embodiment of the present application;
[0038] Reference signs: 10-paperboard, 101-front plate, 1011-first bottom plate, 1012-first top plate, 10121-aperture, 102-first side plate, 1021-second bottom plate, 103-rear plate, 1031-third bottom plate, 1032-second top plate, 10321-easy-tear line, 104-second side plate, 1041-fourth bottom plate;
[0039] 20-first locking structure, 201-third limiting plate, 202-fourth limiting plate, 2021-second insertion part, 2022-second limiting part, 203-third slot;
[0040] 30-second locking structure, 301-first crease, 302-first slot, 303-first limiting plate, 3031-second crease, 3032-first folding part, 3033-first abutting part, 304-third crease, 305-fourth slot, 306-fifth limiting plate, 3061-fourth crease, 3062-second folding part, 3063-second abutting part;
[0041] 40-third locking structure, 401-second slot, 402-second limiting plate, 4021-first insertion part, 4022-first limiting part, 403-fifth slot, 404-sixth limiting plate;
[0042] 50-longitudinal crease, 60-transverse crease. DETAILED DESCRIPTION
[0043] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.
[0044] The terms used in the embodiments of the present application are merely for the purpose of describing the specific embodiments and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application are also intended to include the plural forms, unless the context clearly indicates otherwise.
[0045] It should be understood that, although the terms first, second, third, etc. can be adopted in the embodiments of the present application to describe relevant structures, these relevant structures should not be limited to these terms. These terms are only used to distinguish the relevant structures from each other.
[0046] Depending on context, the word "if" as used herein can be interpreted to mean "when" or "while" or "upon" or "before" or "while". Similarly, the phrase "if a condition is satisfied" can be interpreted to mean "when a condition is satisfied" or "when a condition is detected" or "when a stated condition or event is detected".
[0047] It should be noted that the terms "upper", "lower", "left", "right", etc. described in the embodiments of the present application are described in the angle shown in the drawings, and should not be understood as a limitation on the embodiments of the present application. In addition, in the context, it should also be understood that when referring to an element being formed "on" or "under" another element, it can be directly formed "on" or "under" another element, or indirectly formed "on" or "under" another element through an intermediate element.
[0048] Figure 1 A plane schematic diagram schematically showing disassembly of a packaging box of an embodiment of the present application, Figure 2 A packaging diagram schematically showing a bottom of a packaging box of an embodiment of the present application, as shown in Figure 1 、 2 A packaging box of the present application for preventing secondary packaging, comprising:
[0049] The packaging box is folded from a whole piece of paperboard 10 having longitudinal creases 50 and transverse creases 60, and the paperboard 10 is provided with a first locking structure 20, a second locking structure 30 and a third locking structure 40. When the paperboard 10 is folded to form the packaging box, the first locking structure 20 is used to prevent the paperboard 10 at the side of the packaging box from separating, the second locking structure 30 is used to prevent the paperboard 10 at the bottom of the packaging box from separating, and the third locking structure 40 is used to prevent the paperboard 10 at the top of the packaging box from separating.
[0050] When the packaging box is formed, the first locking structure 20, the second locking structure 30 and the third locking structure 40 are located inside the packaging box.
[0051] The longitudinal creases 50 are vertically arranged, and the transverse creases 60 are transversely arranged.
[0052] In this way, the first locking structure 20, the second locking structure 30 and the third locking structure 40 integrally formed with the paperboard 10 are used to realize the packaging of the whole packaging box, avoiding the situation that the packaging box is illegally opened due to the softening of the adhesive tape in the traditional technology, and improving the effect of preventing secondary packaging.
[0053] At the same time, the packaging box is effectively prevented from being secondarily packaged at each link through the packaging of the side of the packaging box by the first locking structure 20, the packaging of the bottom of the packaging box by the second locking structure 30, and the packaging of the top of the packaging box by the third locking structure 40, and when the packaging box is formed, the first locking structure 20, the second locking structure 30 and the third locking structure 40 are located in the packaging box, the opening difficulty is increased, once the packaging box is forcibly opened, the internal locking structure is damaged and obvious traces are left, the second packaging is effectively prevented, and the consumer rights are protected.
[0054] Further, the paperboard 10 comprises a front plate 101, a first side plate 102, a rear plate 103 and a second side plate 104 fixedly connected, and longitudinal folds 50 are arranged between the front plate 101, the first side plate 102, the rear plate 103 and the second side plate 104.
[0055] A first bottom plate 1011 is fixedly connected at the bottom of the front plate 101, a second bottom plate 1021 is fixedly connected at the bottom of the first side plate 102, and transverse folds 60 are arranged between the first bottom plate 1011 and the front plate 101 and between the second bottom plate 1021 and the first side plate 102.
[0056] The second locking structure 30 comprises a first fold 301 arranged transversely on the first bottom plate 1011, a first slot 302 arranged vertically on the second bottom plate 1021, and a first limiting plate 303 arranged at the top of the first side plate 102, transverse folds 60 are arranged between the first limiting plate 303 and the first side plate 102, and a second fold 3031 is arranged transversely on the first limiting plate 303.
[0057] When the first bottom plate 1011 and the second bottom plate 1021 are folded, the first bottom plate 1011 is used to be folded through the first fold 301 to be inserted into the first slot 302, and when the first limiting plate 303 is folded, the first limiting plate 303 is used to clamp the first bottom plate 1011 and the second bottom plate 1021 through the second fold 3031.
[0058] Specifically, in the first embodiment of the utility model, the first bottom plate 1011 is arranged at the bottom of the front plate 101, the second bottom plate 1021 is arranged at the bottom of the first side plate 102, the first slot 302 is arranged vertically at any position of the first bottom plate 1011, and the first fold 301 can also be arranged at any position of the first bottom plate 1011, as long as the distance from the first fold 301 to the front plate 101 is equal to the distance from the first slot 302 to the left side of the first side plate 102.
[0059] The area of the second bottom plate 1021 can be arranged to be the same as the planar area of the bottom of the packaging box, and when it is folded, it can serve as the bottom of the packaging box.
[0060] The first limiting plate 303 comprises a first folding portion 3032 and a first abutting portion 3033, the first folding portion 3032 is fixedly connected with the top of the first side plate 102, the first abutting portion 3033 is fixedly connected with the top of the first folding portion 3032, and the second crease 3031 is arranged transversely at the connecting position between the first abutting portion 3033 and the first folding portion 3032;
[0061] Meanwhile, in order to enable the first abutting portion 3033 of the first folding portion 3032 to be in contact with the bottom of the packaging box when the first folding portion 3032 is folded along the transverse crease 60, it is necessary to ensure that the height of the first folding portion 3032 is equal to the height of the first side plate 102, so that, after the first folding portion 3032 is folded along the transverse crease 60, the first abutting portion 3033 is further folded through the second crease 3031, so that the top of the first folding portion 3032 and the first abutting portion 3033 are in contact with the bottom of the packaging box.
[0062] When the paperboard 10 is folded, the second bottom plate 1021 is first folded along the transverse crease 60 to be perpendicular to the first side plate 102, and then the first bottom plate 1011 is folded along the transverse crease 60 to be parallel to the second bottom plate 1021 and below the second bottom plate 1021, at this time, the first bottom plate 1011 is folded along the first crease 301, so that the folded portion of the first bottom plate 1011 is inserted into the first slot 302 and enters the inside of the packaging box.
[0063] At this time, the first limiting plate 303 is controlled to be folded along the transverse crease 60 to the inside of the packaging box, so that the first folding portion 3032 is attached to the first side plate 102, and then the first abutting portion 3033 is controlled to be folded along the second crease 3031, at this time, the top of the first folding portion 3032 extrudes the folded portion of the first bottom plate 1011, so that it is further folded along the first crease 301, and then is attached to the top plane of the second bottom plate 1021, so that the first bottom plate 1011 clamps the second bottom plate 1021 from the upper and lower sides, and through the continuous extrusion of the first limiting plate 303 to the first bottom plate 1011, the locking of the first bottom plate 1011 and the second bottom plate 1021 is realized, and the packaging of the bottom of the packaging box is realized.
[0064] Further, in another embodiment of the utility model, the first bottom plate 1011 is arranged at the bottom of the front plate 101, the second bottom plate 1021 is arranged at the bottom of the first side plate 102, the third bottom plate 1031 is arranged at the bottom of the rear plate 103, the fourth bottom plate 1041 is arranged at the bottom of the second side plate 104, and the transverse crease 60 is arranged between the first bottom plate 1011 and the front plate 101, between the second bottom plate 1021 and the first side plate 102, between the third bottom plate 1031 and the rear plate 103 and between the fourth bottom plate 1041 and the second side plate 104;
[0065] The second locking structure 30 further comprises a third crease 304, a fourth slot 305, and a fifth limiting plate 306, the fourth crease 3061 is transversely arranged on the fifth limiting plate 306, the first crease 301 is transversely arranged on the first bottom plate 1011, the first slot 302 is vertically arranged on the second bottom plate 1021, the third crease 304 is transversely arranged on the third bottom plate 1031, and the fourth slot 305 is vertically arranged on the fourth bottom plate 1041.
[0066] In this embodiment, the lengths of the second bottom plate 1021 and the fourth bottom plate 1041 can be set as follows: when the packaging box is formed, the second bottom plate 1021 and the fourth bottom plate 1041 jointly form the bottom surface of the packaging box, and specifically, the lengths of the second bottom plate 1021 and the fourth bottom plate 1041 can be equal to half of the bottom surface of the packaging box, and the areas of the first bottom plate 1011 and the third bottom plate 1031 are set to be equal to the area of the bottom surface of the packaging box.
[0067] The first slot 302 and the fourth slot 305 are arranged at the centers of the second bottom plate 1021 and the fourth bottom plate 1041, and the first crease 301 and the third crease 304 are arranged at the centers of the first bottom plate 1011 and the third bottom plate 1031.
[0068] The fifth limiting plate 306 is fixedly connected to the top of the second side plate 104, the fourth crease 3061 is transversely arranged on the fifth limiting plate 306, the fifth limiting plate 306 comprises a second folding portion 3062 and a second abutting portion 3063, the second folding portion 3062 is fixedly connected to the top of the second side plate 104, the second abutting portion 3063 is fixedly connected to the top of the second folding portion 3062, and the fourth crease 3061 is arranged between the second folding portion 3062 and the second abutting portion 3063.
[0069] When the paperboard 10 is folded, the second bottom plate 1021 and the fourth bottom plate 1041 are first folded to be perpendicular to the first side plate 102, so that the second bottom plate 1021 and the fourth bottom plate 1041 jointly form the bottom plane of the packaging box, at this time, the first slot 302 and the fourth slot 305 are correspondingly arranged, then the first bottom plate 1011 and the third bottom plate 1031 are folded, the first bottom plate 1011 is folded along the first crease 301, and the third bottom plate 1031 is folded along the third crease 304, so that the first bottom plate 1011 and the third bottom plate 1031 are synchronously inserted into the first slot 302 and the fourth slot 305, at this time, part of the first bottom plate 1011 and the third bottom plate 1031 are attached to the second bottom plate 1021 and the fourth bottom plate 1041, and the other part is located in the packaging box.
[0070] At this time, the first limiting plate 303 and the fifth limiting plate 306 are folded, so that the first folded part 3032 and the second folded part 3062 are respectively attached to the first side plate 102 and the second side plate 104. Then, the first abutting part 3033 is folded along the second crease 3031 and the second abutting part 3063 is folded along the fourth crease 3061, so that the first limiting plate 303 and the fifth limiting plate 306 jointly squeeze the insertion part of the first bottom plate 1011 and the third bottom plate 1031, so that it is further folded and then clamps the second bottom plate 1021 and the fourth bottom plate 1041, thus forming the bottom surface of the packaging box.
[0071] With this configuration, the bottom of the packaging box is formed by the first bottom plate 1011, the second bottom plate 1021, the third bottom plate 1031 and the fourth bottom plate 1041. This makes the bottom of the packaging box more stable, and the multi-step operation increases the difficulty of disassembly. If the packaging box is forcibly opened, it will damage the overall structure and leave obvious marks, which can effectively prevent secondary sealing.
[0072] Meanwhile, the setting of the first limiting plate 303 and the fifth limiting plate 306 forms a reinforced structure in which the sides and bottom restrict each other, which enables the packaging box to resist external force from both the sides and the bottom, enhances the overall stability, and greatly improves the anti-tamper performance of the packaging box.
[0073] Furthermore, such as Figure 1 As shown, a first top plate 1012 is fixedly connected to the top of the front plate 101, and a second top plate 1032 is fixedly connected to the top of the rear plate 103. A transverse crease 60 is provided between the first top plate 1012 and the front plate 101 and between the second top plate 1032 and the rear plate 103.
[0074] The third locking structure 40 includes a second slot 401 and a second limiting plate 402. The second slot 401 is horizontally disposed at the connection between the first top plate 1012 and the front plate 101. The second limiting plate 402 is fixedly connected to the top of the second top plate 1032, and a horizontal crease 60 is provided at the connection between the two.
[0075] The length of the second limiting plate 402 is greater than the length of the second slot 401. When the first top plate 1012 and the second top plate 1032 are folded, the second limiting plate 402 is used to insert into the second slot 401 so that the first top plate 1012 and the second top plate 1032 fit together.
[0076] Specifically, when the paperboard 10 is folded, the side of the packaging box is first packaged, then the bottom of the packaging box is packaged, and finally the top of the packaging box is packaged. When the top of the packaging box is packaged, the first top plate 1012 is first folded along the transverse fold line 60 so that the first top plate 1012 is perpendicular to the front plate 101, and then the second top plate 1032 is folded along the transverse fold line 60 so that it is attached to the first top plate 1012 and located above the first top plate 1012;
[0077] The second limiting plate 402 is further controlled to be folded along the transverse fold line 60 so that the second limiting plate 402 is inserted into the second insertion slot 401. Since the length of the second limiting plate 402 is greater than the length of the second insertion slot 401, before the second limiting plate 402 is inserted into the second insertion slot 401, the two sides of the second limiting plate 402 are folded so that the length of the second limiting plate 402 is equal to or less than the length of the second insertion slot 401, so that the end of the second limiting plate 402 can be inserted into the second insertion slot 401. After the second limiting plate 402 is inserted, due to the elastic effect of the paper material, the folded parts of the two sides of the second limiting plate 402 are not completely reset, and then abut against the bottom plane of the first top plate 1012, thereby realizing the locking of the second top plate 1032 and the first top plate 1012, and realizing the packaging of the top of the packaging box.
[0078] The second limiting plate 402 includes a first insertion part 4021 and a first limiting part 4022. The first insertion part 4021 is fixedly connected to the top of the rear plate 103, and the first limiting part 4022 is fixedly connected to the two sides of the first insertion part 4021. There is a certain distance between the first limiting part 4022 and the rear plate 103. The length of the first insertion part 4021 is equal to the length of the second insertion slot 401.
[0079] When the second limiting plate 402 is inserted into the first top plate 1012, the two sides of the first limiting part 4022 are folded to be attached to the first insertion part 4021, thereby enabling the second limiting plate 402 to be inserted into the second insertion slot 401. After the second limiting plate 402 is inserted, the first limiting part 4022 is stretched under the action of the elastic force, thereby abutting against the bottom plane of the first top plate 1012 and realizing the locking.
[0080] Furthermore, in order to make the packaging effect of the top of the packaging box better, the third locking structure 40 further includes a fifth insertion slot 403 and a sixth limiting plate 404. The fifth insertion slot 403 is transversely arranged between the first limiting plate 303 and the first side plate 102 and between the fifth limiting plate 306 and the second side plate 104, respectively. The sixth limiting plate 404 is arranged on the two sides of the first top plate 1012, and a longitudinal fold line 50 is arranged between the two sides.
[0081] When the first top plate 1012 is folded, the sixth limiting plate 404 is folded along the longitudinal fold line 50 and inserted into the fifth slot 403 on both sides, so that the bottom plane of the first top plate 1012 is attached to the side of the packaging box, and the gap between the two sides of the first top plate 1012 and the second top plate 1032 and the side of the packaging box is reduced or eliminated when the top of the packaging box is sealed.
[0082] Further, the easy-to-tear line 10321 is arranged on the top of the packaging box, that is, the easy-to-tear line 10321 is arranged on the second top plate 1032. When the top of the packaging box is sealed, the consumer can tear the second top plate 1032 through the easy-to-tear line 10321, which assists the consumer in unpacking and facilitates the consumer in opening the packaging box.
[0083] Further, the notch 10121 is arranged on the first top plate 1012, which is arranged near the top of the first top plate 1012. When the consumer tears the second top plate 1032 through the easy-to-tear line 10321 or other means, the consumer can insert a finger into the notch 10121 to assist in lifting the first top plate 1012, which facilitates the consumer in opening the packaging box.
[0084] It can be understood that the folding order of the first top plate 1012 and the second top plate 1032 can be replaced, so that the first top plate 1012 is located above the second top plate 1032. Correspondingly, the second slot 401, the sixth limiting plate 404 and the notch 10121 in the third locking structure 40 need to be arranged on the second top plate 1032, and the second limiting plate 402, that is, the easy-to-tear line 10321, needs to be arranged on the first top plate 1012.
[0085] Further, as shown in Figure 1 the first locking structure 20 includes a third limiting plate 201, a fourth limiting plate 202 and a third slot 203;
[0086] The third limiting plate 201 is fixedly connected to the side of the front plate 101, and a longitudinal fold line 50 is arranged at the connection therebetween. The third slot 203 is vertically arranged at the connection between the third limiting plate 201 and the front plate 101. The fourth limiting plate 202 is fixedly connected to the side of the second side plate 104, and a longitudinal fold line 50 is arranged at the connection therebetween. The length of the fourth limiting plate 202 is greater than the length of the third slot 203.
[0087] When the front plate 101, the first side plate 102, the rear plate 103 and the second side plate 104 are folded, the fourth limiting plate 202 is used to be inserted into the third slot 203 to fixedly connect the front plate 101 and the second side plate 104. The third limiting plate 201, the fourth limiting plate 202 and the third slot 203 are completely located in the packaging box.
[0088] Specifically, the fourth limiting plate 202 comprises a second insertion part 2021 and a second limiting part 2022, the second insertion part 2021 is fixedly connected with the side part of the second side plate 104, the second limiting part 2022 is fixedly connected on both sides of the second insertion part 2021, and there is a spacing between the second limiting part 2022 and the second side plate 104, and the length of the second insertion part 2021 is equal to the length of the third slot 203.
[0089] When the paperboard 10 is folded, the front plate 101, the first side plate 102, the back plate 103 and the second side plate 104 are folded through the longitudinal crease 50, so that the front plate 101 is in contact with the second side plate 104, at this time, the second insertion part 2021 is inserted into the third slot 203 by controlling the folding of the second limiting part 2022, when the fourth limiting plate 202 is inserted, the second limiting part 2022 is stretched by the elastic force, and then abuts against the third limiting plate 201, thereby realizing the locking of the front plate 101 and the second side plate 104.
[0090] At the same time, when the front plate 101 is in contact with the second side plate 104, the third limiting plate 201 and the fourth limiting plate 202 can be folded through the longitudinal crease 50, so that the third limiting plate 201 and the fourth limiting plate 202 are both located within the surrounding range of the side part of the packaging box and are not exposed outside the packaging box, thereby realizing the effect that the packaging box cannot be disassembled from the outside after the side part of the packaging box is packaged.
[0091] In summary, according to the scheme of the present application, when the packaging box is packaged, the first locking structure 20 for packaging the side part, the second locking structure 30 for packaging the bottom part and the third locking structure 40 for packaging the top part are all located in the packaging box, so that the effect that the packaging box is not easy to disassemble after packaging can be realized, and when forcibly disassembled, the internal locking structure is damaged and obvious traces are left, thereby effectively preventing secondary packaging behavior.
[0092] The above description is only the preferred embodiment of the present application. Those skilled in the art should understand that the disclosure range involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or equivalent features without departing from the above disclosed concept. For example, the above features are replaced with the technical features disclosed in the present application (but not limited to) having similar functions to form a technical solution.
Claims
1. A packaging box resistant to secondary sealing, comprising a single piece of cardboard folded with longitudinal and transverse creases, characterized in that, include: The cardboard is provided with a first locking structure, a second locking structure and a third locking structure. When the cardboard is folded to form the packaging box, the first locking structure is used to prevent the cardboard at the side of the packaging box from separating, the second locking structure is used to prevent the cardboard at the bottom of the packaging box from separating, and the third locking structure is used to prevent the cardboard at the top of the packaging box from separating. When the packaging box is formed, the first locking structure, the second locking structure, and the third locking structure are located inside the packaging box.
2. The packaging box for preventing secondary sealing according to claim 1, characterized in that, The cardboard includes a front panel, a first side panel, a rear panel, and a second side panel that are fixedly connected in sequence, and the longitudinal crease is provided between the front panel, the first side panel, the rear panel, and the second side panel; A first base plate is fixedly connected to the bottom of the front plate, and a second base plate is fixedly connected to the bottom of the first side plate. The transverse creases are provided between the first base plate and the front plate and between the second base plate and the first side plate. The second locking structure includes a first crease arranged horizontally on the first base plate, a first slot arranged vertically on the second base plate, and a first limiting plate arranged on the top of the first side plate. The horizontal crease is provided between the first limiting plate and the first side plate, and a second crease is arranged horizontally on the first limiting plate. When the first base plate and the second base plate are folded, the first base plate is used to fold through the first crease to insert into the first slot. When the first limiting plate is folded, the first limiting plate is used to clamp the first base plate with the second base plate through the second crease.
3. A packaging box for preventing secondary sealing according to claim 2, characterized in that, A first top plate is fixedly connected to the top of the front plate, and a second top plate is fixedly connected to the top of the rear plate. The transverse creases are provided between the first top plate and the front plate and between the second top plate and the rear plate. The third locking structure includes a second slot and a second limiting plate. The second slot is laterally disposed at the connection between the first top plate and the front plate. The second limiting plate is fixedly connected to the top of the second top plate, and a lateral crease is provided at the connection between the two. The length of the second limiting plate is greater than the length of the second slot. When the first top plate and the second top plate are folded, the second limiting plate is used to insert into the second slot so that the first top plate and the second top plate fit together.
4. A packaging box for preventing secondary sealing according to claim 3, characterized in that, The first locking structure includes a third limiting plate, a fourth limiting plate, and a third slot; The third limiting plate is fixedly connected to the side of the front plate, and the longitudinal crease is provided at the connection between the two. The third slot is vertically provided at the connection between the third limiting plate and the front plate. The fourth limiting plate is fixedly connected to the side of the second side plate, and the longitudinal crease is provided at the connection between the two. The length of the fourth limiting plate is greater than the length of the third slot. When the front panel, the first side panel, the rear panel, and the second side panel are folded, the fourth limiting plate is used to insert into the third slot to fix the front panel and the second side panel together. The third limiting plate, the fourth limiting plate, and the third slot are completely located inside the packaging box.
5. A packaging box for preventing secondary sealing according to claim 3, characterized in that, A third base plate is fixedly connected to the bottom of the rear plate, and a fourth base plate is fixedly connected to the bottom of the second side plate. A transverse crease is provided between the third base plate and the rear plate and between the fourth base plate and the second side plate. A third crease is provided transversely on the third base plate, and a fourth slot is provided vertically on the fourth base plate. The second locking structure also includes a fifth limiting plate disposed on the top of the second side plate, a transverse crease being provided between the fifth limiting plate and the second side plate, and a fourth crease being provided transversely on the fifth limiting plate; When the first base plate, the second base plate, the third base plate, and the fourth base plate are folded, the first slot and the fourth slot are correspondingly set. The first base plate is used to be inserted into the first slot and the fourth slot simultaneously through the first crease and the third base plate is used to be inserted through the third crease. The first limiting plate is used to be folded through the second crease and the fifth limiting plate is used to be folded through the fourth crease to jointly press the first base plate and the third base plate together.
6. A packaging box for preventing secondary sealing according to claim 5, characterized in that, The third locking structure further includes a fifth slot and a sixth limiting plate. The fifth slot is respectively arranged laterally between the first limiting plate and the first side plate and between the fifth limiting plate and the second side plate. The sixth limiting plate is arranged on both sides of the first top plate, and the longitudinal crease is provided between them. When the first top plate is folded, the sixth limiting plate is used to insert into the fifth slot.
7. A packaging box for preventing secondary sealing according to claim 4, characterized in that, The second limiting plate includes a first insertion part and a first limiting part. The first insertion part is fixedly connected to the top of the rear plate, and the first limiting part is fixedly connected to both sides of the first insertion part. The length of the first insertion part is equal to the length of the second slot. The fourth limiting plate includes a second insertion part and a second limiting part. The second insertion part is fixedly connected to the side of the second side plate, and the second limiting part is fixedly connected to both sides of the second insertion part. The length of the second insertion part is equal to the length of the third slot.
8. A packaging box for preventing secondary sealing according to claim 5, characterized in that, The first limiting plate includes a first folding part and a first abutting part. The first folding part is fixedly connected to the top of the first side plate, and the first abutting part is fixedly connected to the top of the first folding part. The second crease is disposed between the first folding part and the first abutting part. The height of the first fold is equal to the height of the first side plate; The fifth limiting plate includes a second folding part and a second abutting part. The second folding part is fixedly connected to the top of the second side plate, and the second abutting part is fixedly connected to the top of the second folding part. The fourth crease is provided between the second folding part and the second abutting part. The height of the second fold is equal to the height of the second side plate.
9. A packaging box for preventing secondary sealing according to claim 3, characterized in that, A notch is provided on the first top plate, and the notch is located near the top of the first top plate.
10. A packaging box for preventing secondary sealing according to claim 1, characterized in that, An easy-tear line is provided on the top of the packaging box, which is used to open the top of the packaging box.