A child-resistant packaging structure
By using the interlayer gap between the paper upper box and the flexible lower box and the locking mechanism, a child lock function is achieved without the need for an additional locking device. This solves the problems of high cost and low efficiency in existing technologies and provides a simplified and economical child lock packaging solution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN ZHENNENGDA TECHNOLOGY CO LTD
- Filing Date
- 2025-09-12
- Publication Date
- 2026-07-21
AI Technical Summary
Existing child lock packaging structures require additional complex accessories and materials, resulting in high production costs and low efficiency, making it difficult to widely apply in mass consumer products.
The upper box is made of folded paper material and the lower box is made of elastic material. The child lock function is achieved without the need for an additional lock by utilizing the gap between the layers and the elastic buckle. The locking and unlocking are achieved by the elastic deformation of the buckle.
It simplifies the production process, reduces material and labor costs, and ensures that it is difficult for children to open, making it suitable for mass production and economic needs.
Smart Images

Figure CN224529460U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of product packaging technology, and in particular to a child lock packaging structure. Background Technology
[0002] In the pharmaceutical industry (such as drugs and medical devices), cosmetics industry (such as skincare and makeup products), food industry (such as health supplements and foods containing alcohol or caffeine), daily necessities industry (such as cleaning agents and chemicals), and toy industry, preventing children from accidentally opening packaging is a common and critical safety requirement. If stored improperly, children can easily open the packaging, which may lead to accidental ingestion, accidental contact, or other safety accidents, posing serious health risks.
[0003] To address this issue, existing solutions on the market often employ packaging with child-lock functionality. This type of packaging typically relies on additional physical locking structures, such as pre-fabricated individual locking components made of EVA (ethylene-vinyl acetate copolymer) or blister packaging, which are then assembled with outer boxes, tissue paper, and other accessories. While this design can prevent children from opening the packaging to some extent, it also has significant drawbacks: First, it requires the procurement and management of various dissimilar materials and accessories, complicating the supply chain and production processes; second, it usually requires manual or semi-manual assembly, resulting in low production efficiency and high labor costs; third, the use of multiple layers of materials and additional locking mechanisms increases the weight and volume of the entire package, contradicting the current trend towards green, environmentally friendly, and reduced-volume packaging. These factors collectively increase the overall cost of traditional child-lock packaging, limiting its widespread application in mass-market consumer products.
[0004] Therefore, there is an urgent need in this field for a child lock packaging solution that is low-cost, simple in structure, reliable, and requires no additional complex accessories, so as to ensure children's safety while meeting the economic and efficiency requirements of large-scale production. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a child lock packaging structure that does not require additional complex accessories.
[0006] In order to solve the above technical problems, the technical solution adopted by this utility model is: a child lock packaging structure, including an upper box (1) and a lower box (2);
[0007] The upper box (1) is formed by folding and gluing paper material. At least one side wall of the upper box includes an inner layer (11) and an outer layer (12). The inner layer (11) has an opening (111), and the outer layer (12) has a gap (121) corresponding to the opening (111). The inner layer (11) and the outer layer (12) form a sandwich gap (13) below the opening (111).
[0008] The lower box (2) includes a bottom box (21) and a middle box (22) fitted inside the bottom box (21). The middle box (22) is made of elastic material and has a buckle (221) that can be elastically deformed on its side wall.
[0009] When the upper box (1) is closed on the lower box (2), the latch (221) passes through the gap (121) of the outer layer (12) and engages in the opening (111) of the inner layer (11) and the interlayer gap (13) to achieve locking; by pressing the latch (221) to make it flush with the side wall of the middle box (22), it can be disengaged from the interlayer gap (13) and the opening (111) to achieve unlocking.
[0010] Furthermore, the opening (111) on the inner layer (11) and the slit (121) on the outer layer (12) are U-shaped.
[0011] Furthermore, the size of the U-shaped slit (121) on the outer layer (12) is smaller than the size of the U-shaped opening (111) on the inner layer (11).
[0012] Furthermore, the latch (221) on the middle box (22) is U-shaped.
[0013] Furthermore, the U-shaped latch (221) is formed by stretching forward through the U-shaped slit opened on the side wall of the middle box (22) so that it protrudes from the side.
[0014] Furthermore, the height of the middle box (22) is higher than that of the bottom box (21), and the latch (221) is located on the part of the middle box (22) that is higher than that of the bottom box (21).
[0015] Furthermore, the middle box (22) is formed by folding frosted film.
[0016] Furthermore, both the upper box (1) and the lower box (21) are made of cardboard.
[0017] Furthermore, the slit (121) on the outer layer (12) forms a pressing part (122) for unlocking.
[0018] The beneficial effects of this invention are as follows: Through the ingenious cooperation between the interlayer gap formed by the upper box and the elastic buckle of the lower box, a child lock function is achieved without the need for additional locking accessories. This structure greatly simplifies the packaging composition, eliminates the need for purchasing and assembling independent buckles, and significantly reduces material and production costs. At the same time, the integrated locking mechanism is intuitive and reliable to operate, ensuring safety that is difficult for children to open while also facilitating normal use by adults, thus meeting the dual needs of some products for safety and economy. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the child lock packaging structure according to an embodiment of the present utility model;
[0021] Figure 2 This is a schematic diagram of the child lock packaging structure from another angle according to an embodiment of the present utility model;
[0022] Figure 3 This is a schematic diagram of the unfolded upper box structure according to an embodiment of the present utility model;
[0023] Figure 4 This is a schematic diagram of the unfolded structure of the bottom box according to an embodiment of the present utility model;
[0024] Figure 5 This is a schematic diagram of the unfolded structure of the middle box according to an embodiment of the present utility model;
[0025] 1. Upper box; 2. Lower box; 11. Inner layer; 12. Outer layer; 111. Opening; 121. Gap; 122. Pressing part; 13. Interlayer gap; 21. Bottom box; 22. Middle box; 221. Lock. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] It should be noted that the descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0028] like Figures 1-5As shown, one embodiment of this utility model is: a child lock packaging structure, including an upper box 1 and a lower box 2;
[0029] The upper box 1 is formed by folding and gluing paper material. At least one side wall of the upper box includes an inner layer 11 and an outer layer 12. The inner layer 11 has an opening 111, and the outer layer 12 has a gap 121 corresponding to the opening 111. The inner layer 11 and the outer layer 12 form a sandwich gap 13 below the opening 111.
[0030] The lower box 2 includes a bottom box 21 and a middle box 22 fitted inside the bottom box 21. The middle box 22 is made of elastic material and has a lock 221 that can be elastically deformed on its side wall.
[0031] When the upper box 1 is closed on the lower box 2, the latch 221 passes through the gap 121 of the outer layer 12 and engages with the opening 111 of the inner layer 11 and the interlayer gap 13 to achieve locking; by pressing the latch 221 to make it flush with the side wall of the middle box 22, it can be disengaged from the interlayer gap 13 and the opening 111 to achieve unlocking.
[0032] In this embodiment, the core principle of the child lock packaging structure lies in using the interlayer gap 13 formed by the structure of the upper box 1 itself as a locking groove, and using the locking buckle 221 made of elastic material from the lower box 22 as a locking tongue. When closing, the locking buckle 221, due to its elastic deformation, passes through the outer layer gap 121 and quickly springs back into the inner layer opening 111 and the deeper interlayer gap 13. This locking state is stable, and children cannot open it because they have difficulty understanding and coordinating the two actions of "pressing" and "lifting", effectively preventing accidental opening. When unlocking, adults press the locking buckle 221 to overcome the elastic force and make it flush with the side wall of the middle box 22, thereby completely exiting the interlayer gap 13 and the opening 111, and the upper box 1 can be easily separated. This design realizes the child lock function of a purely mechanical structure, without the need for any additional locking accessories such as metal or plastic, greatly simplifying the production and assembly process.
[0033] Furthermore, in one specific embodiment, the opening 111 on the inner layer 11 and the slit 121 on the outer layer 12 are U-shaped.
[0034] In this embodiment, the U-shaped arc bottom effectively avoids stress concentration, prevents the paper material from tearing under repeated stress, and extends the packaging life. At the same time, the U-shaped structure provides a smooth path for the insertion and guidance of the latch 221, ensuring smooth locking and unlocking actions.
[0035] Furthermore, in one specific embodiment, the size of the U-shaped slit 121 on the outer layer 12 is smaller than the U-shaped opening 111 on the inner layer 11.
[0036] In this embodiment, the smaller outer layer gap 121 guides and limits the passage of the latch 221, and ensures that after final engagement, the back of the latch 221 is blocked by the edge of the cardboard of the outer layer 12, making it difficult to pry open from the outside, thus enhancing the concealment and anti-opening capability of the child lock. The larger inner layer opening 111 provides ample space for the head of the latch 221 to engage, ensuring locking depth and stability.
[0037] Furthermore, in one specific embodiment, the latch 221 on the middle box 22 is U-shaped.
[0038] In this embodiment, the latch 221 adopts a U-shape, forming a flexible "cantilever beam" structure. When the closed end of the U-shape is pressed, its two arms can undergo elastic deformation, causing the entire latch 221 to move backward. This structure utilizes the elasticity of the material itself to achieve reliable deformation and rebound, which is the key to the unlocking function.
[0039] Furthermore, in one specific embodiment, the U-shaped latch 221 is formed by stretching forward through a U-shaped slit opened on the side wall of the middle box 22, so that it protrudes from that side.
[0040] In this embodiment, the latch 221 and the middle box 22 are an integral structure, which can be manufactured through a simple die-cutting and pre-stretching process, without the need for separate production and assembly. This not only completely eliminates the material cost and assembly time of additional latches, but also avoids the risk of small parts falling off, improving production efficiency and structural reliability.
[0041] Furthermore, in one specific embodiment, the height of the middle box 22 is higher than that of the bottom box 21, and the latch 221 is provided on the part of the middle box 22 that is higher than that of the bottom box 21.
[0042] In this embodiment, the design ensures that the latch 221 has sufficient room for movement and freedom of deformation, and is not obstructed by the side wall of the bottom box 21. When the latch 221 is pressed, it is suspended below and can move smoothly backward until it is flush with the side wall of the middle box 22, thereby successfully completing the unlocking action.
[0043] Furthermore, in one specific embodiment, the middle box 22 is formed by folding a frosted film.
[0044] In this embodiment, frosted film is chosen to make the middle box 22 because this type of material combines good elasticity, toughness, and a certain degree of rigidity. Its elasticity ensures that the latch 221 can be repeatedly deformed and returned to its original position without easily fatigued and broken; its toughness ensures the durability of the overall structure; and its rigidity allows the middle box 22 to stably support the product. The frosted surface also provides an aesthetically pleasing texture and a certain degree of scratch resistance.
[0045] Furthermore, in one specific embodiment, both the upper box 1 and the lower box 21 are made of cardboard.
[0046] In this embodiment, the upper box 1 and the lower box 21 are mainly made of common paperboard materials such as grey board paper and white cardboard, which are inexpensive, environmentally friendly, and easy to print and surface treat, thus meeting the appearance requirements of the packaging. At the same time, the interlayer gap 13 formed by the paper material has just the right amount of friction and support, which can form an effective and durable locking interface with the elastic buckle 221.
[0047] Furthermore, in one specific embodiment, the slit 121 on the outer layer 12 forms a pressing part 122 for unlocking.
[0048] In this embodiment, the gap 121 functionally constitutes a hidden push-button switch 122. The user only needs to press the area on the outer layer 12 corresponding to the latch 221 with their finger; the force is transmitted through the cardboard, forcing the latch 221 to deform and unlock. This design maintains the integrity and simplicity of the outer box's appearance, with no obtrusive buttons, making it difficult for children to notice or operate, further enhancing the child lock's effectiveness.
[0049] Furthermore, in one specific embodiment, the child lock packaging structure is used for the safe storage of electronic cigarette products.
[0050] In this embodiment, the packaging structure perfectly meets the dual requirements of safety and economy for e-cigarette products. Its reliable child lock feature effectively prevents children from accessing the cartridges, avoiding the risk of nicotine poisoning. At the same time, its significantly reduced cost and simplified structure are very suitable for the packaging needs of mass-market consumer products like e-cigarettes, solving the pain point of promoting the application of traditional high-cost child lock packaging in this field.
[0051] Furthermore, in one specific embodiment, the child lock packaging structure can also be applied to a wide range of other areas where it is necessary to prevent children from opening the packaging.
[0052] In this embodiment, the present invention demonstrates exceptional versatility, with its effective and low-cost child-lock solution applicable to a wide range of product packaging. For example, in the pharmaceutical field, it can be used to package tablets, capsules, or small medical devices to prevent children from accidentally ingesting or coming into contact with sharp objects; in the cosmetics field, it is suitable for the outer packaging of serums, perfume bottles, or lipsticks to prevent children from accidentally using them and causing skin allergies or ingestion; in the food field, it can provide safe packaging for high-concentration caffeine products, alcoholic chocolates, or health supplements; in the household chemicals field, it can be used for the secondary packaging of laundry detergent pods, disinfectants, or cleaning agents to effectively prevent infants from accidentally ingesting and becoming poisoned; and in the toy field, it ensures that toys containing small parts or batteries remain in their original packaging before sale, preventing children from prematurely accessing them and posing a swallowing risk. This broad applicability highlights the enormous market potential and practical value of this invention.
[0053] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A child lock packaging structure, characterized in that, Includes an upper box (1) and a lower box (2); The upper box (1) is formed by folding and gluing paper material. At least one side wall of the upper box includes an inner layer (11) and an outer layer (12). The inner layer (11) has an opening (111), and the outer layer (12) has a gap (121) corresponding to the opening (111). The inner layer (11) and the outer layer (12) form a sandwich gap (13) below the opening (111). The lower box (2) includes a bottom box (21) and a middle box (22) fitted inside the bottom box (21). The middle box (22) is made of elastic material and has a buckle (221) that can be elastically deformed on its side wall. When the upper box (1) is closed on the lower box (2), the latch (221) passes through the gap (121) of the outer layer (12) and engages in the opening (111) of the inner layer (11) and the interlayer gap (13) to achieve locking; by pressing the latch (221) to make it flush with the side wall of the middle box (22), it can be disengaged from the interlayer gap (13) and the opening (111) to achieve unlocking.
2. The child lock packaging structure according to claim 1, characterized in that, The opening (111) on the inner layer (11) and the slit (121) on the outer layer (12) are U-shaped.
3. The child lock packaging structure according to claim 2, characterized in that, The size of the U-shaped slit (121) on the outer layer (12) is smaller than the size of the U-shaped opening (111) on the inner layer (11).
4. The child lock packaging structure according to claim 1, characterized in that, The latch (221) on the middle box (22) is U-shaped.
5. The child lock packaging structure according to claim 4, characterized in that, The U-shaped latch (221) is formed by stretching forward through a U-shaped slit on the side wall of the middle box (22) so that it protrudes from the side wall.
6. The child lock packaging structure according to claim 1, characterized in that, The height of the middle box (22) is higher than that of the bottom box (21), and the latch (221) is located on the part of the middle box (22) that is higher than that of the bottom box (21).
7. The child lock packaging structure according to claim 1, characterized in that, The middle box (22) is formed by folding frosted film.
8. The child lock packaging structure according to claim 1, characterized in that, Both the upper box (1) and the lower box (21) are made of cardboard.
9. The child lock packaging structure according to claim 1, characterized in that, The slit (121) on the outer layer (12) forms a pressing part (122) for unlocking.