Moisture-proof lock catch type packaging carton

Abstract

The utility model belongs to packing carton technical field, and disclose damp -proof lock catch formula packing carton, including paper box body, the top of paper box body is equipped with the lid, the one end of paper box body and lid is equipped with two buckle assemblies, the buckle assembly includes the accommodating groove of setting in the top of paper box body, the lower inner wall of accommodating groove is installed with fixed plate no.

Description

Technical Field

[0001] This utility model belongs to the field of packaging paper box technology, specifically a moisture-proof locking packaging paper box. Background Technology

[0002] In the circulation and storage of goods, cardboard boxes, as a widely used form of packaging, play a vital role in protecting the shape of goods, extending their shelf life, and enhancing product recognition. Their performance directly affects the quality stability of goods and the consumer experience. As the consumer market continues to demand higher quality products, especially those sensitive to humidity such as food, pharmaceuticals, and electronic components, higher standards are being placed on the moisture-proof capabilities of packaging during transportation, warehousing, and daily use. Packaging also needs to provide convenient and robust sealing to prevent spoilage, damage, or performance degradation due to external environmental factors.

[0003] Existing moisture-proof packaging boxes mostly use methods such as tongue and groove, glue or simple buckle to connect the lid and the box body. These connection methods are either difficult to reseal after opening and closing, or the connection is not stable enough. The lid is easy to fall off when subjected to external force, resulting in the internal items being exposed to moisture.

[0004] Therefore, a moisture-proof, interlocking cardboard box is proposed to address the above issues. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a moisture-proof, interlocking packaging box, which not only achieves a reliable connection between the lid and the box body, but also maintains good snap-fit ​​performance after multiple openings and closings, combining reusability and connection reliability with enhanced comprehensive protection of the contents.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a moisture-proof, lockable packaging cardboard box, comprising a cardboard box body, a lid at the top of the cardboard box body, and two snap-fit ​​components at the end of the cardboard box body corresponding to the lid. Each snap-fit ​​component includes a receiving groove at the top of the cardboard box body, a fixing plate 1 installed on the lower inner wall of the receiving groove, two snap-fit ​​rings rotatably connected to the top of the fixing plate 1, an extension platform fixedly connected to the opposite ends of the two snap-fit ​​rings, a return spring fixedly connected to the bottom ends of the two extension platforms, and the bottom ends of the two return springs jointly fixedly connected to the fixing plate 1. A second fixing plate is embedded at the end of the lid corresponding to the cardboard box body, and a snap-fit ​​block for use with the two snap-fit ​​rings is fixedly connected to the bottom end of the second fixing plate.

[0007] Preferably, the cross-section of the snap-fit ​​block is circular, the cross-section of the two snap-fit ​​rings is semi-circular, and the ends of the two snap-fit ​​rings facing the snap-fit ​​block are both arc-shaped.

[0008] Preferably, the box lid includes a sealing strip fixedly connected to the box lid, and a sealing groove is provided at the top of the paper box body. The sealing groove and the sealing strip are connected by an interference fit, and the sealing strip and the sealing groove are provided with clearance openings at the positions of the two buckle components corresponding to the two buckle components.

[0009] Preferably, both ends of the lid are provided with opening grooves.

[0010] Preferably, the cardboard box body is composed of an inner box and an outer box. The inner box is used to hold the items to be packaged, and the outer box is fitted over the outer side of the inner box. The outer surfaces of the outer box and the box lid are coated with a moisture-proof coating.

[0011] Preferably, a buffer layer is provided between the inner box and the outer box, and the buffer layer is fitted to the outer wall of the inner box and the inner wall of the outer box.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by setting up a snap-fit ​​assembly, under the synergistic action of the snap-fit ​​ring and the snap-fit ​​block, when the box lid is snapped shut, the snap-fit ​​block squeezes the snap-fit ​​ring and compresses the return spring. After the return spring rebounds, it drives the snap-fit ​​ring to form a ring-shaped and stable snap-fit ​​with the snap-fit ​​block. This not only achieves a reliable connection between the box lid and the paper box body, but also supports good snap-fit ​​performance after multiple opening and closing, taking into account both reusability and connection reliability.

[0014] 2. By setting up a cardboard box body, the cardboard box body can achieve efficient moisture protection under the action of the buffer layer and the sealing strip. At the same time, the buffer layer can absorb the impact of external forces during transportation or storage, achieve shock absorption protection, and further improve the comprehensive protection capability of the contents. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an exploded view of the paper box body and lid structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the box lid structure of this utility model;

[0018] Figure 4 This is an exploded view of the buckle assembly structure of this utility model;

[0019] Figure 5 This is a side view of the cross-sectional structure of the paper box body of this utility model.

[0020] In the diagram: 1. Cardboard box body; 11. Inner box; 12. Outer box; 13. Cushioning layer;

[0021] 2. Box lid; 21. Sealing groove; 22. Lid opening groove; 23. Sealing strip;

[0022] 3. Receiving tank;

[0023] 4. Buckle assembly; 41. Fixing plate two; 42. Snap block; 43. Fixing plate one; 44. Return spring; 45. Snap ring; 46. Extension platform. Detailed Implementation

[0024] 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.

[0025] like Figures 1 to 5 As shown, this utility model provides a moisture-proof lockable packaging paper box, including a paper box body 1, a box cover 2 at the top of the paper box body 1, and two buckle components 4 at one end of the paper box body 1 corresponding to the box cover 2.

[0026] The latching assembly 4 includes a receiving groove 3 at the top of the paper box body 1. A fixing plate 43 is installed on the lower inner wall of the receiving groove 3. Two locking rings 45 are rotatably connected to the top of the fixing plate 43. An extension platform 46 is fixedly connected to one end of each locking ring 45 on opposite sides. A return spring 44 is fixedly connected to the bottom of each extension platform 46. The bottom of the two return springs 44 is fixedly connected to the fixing plate 43. A fixing plate 41 is embedded at the end of the lid 2 corresponding to the paper box body 1. A locking block 42 that works with the two locking rings 45 is fixedly connected to the bottom of the fixing plate 41. The latching assembly 4, consisting of the fixing plate 43, the rotatable locking rings 45, the extension platform 46, and the return springs 44, together with the fixing plate 41 and the locking block 42, can achieve a stable latching between the lid 2 and the paper box body 1, avoiding the problem of easy loosening in traditional connection methods. The return springs 44 can assist the locking rings 45 in resetting, ensuring a reliable connection after multiple openings and closings.

[0027] Specifically, the cross-section of the snap-fit ​​block 42 is circular, and the cross-sections of the two snap-fit ​​rings 45 are semi-circular. Both snap-fit ​​rings 45 have an arc-shaped end facing the snap-fit ​​block 42. The cooperation between the circular snap-fit ​​block 42 and the semi-circular snap-fit ​​rings 45, along with the arc-shaped end of the snap-fit ​​rings 45, can reduce the resistance when the snap-fit ​​block 42 is inserted, making the lid 2 snap-fit ​​smoother. At the same time, the arc-shaped structure can prevent wear of parts during the snap-fit ​​process and extend the service life of the snap-fit ​​assembly 4.

[0028] like Figures 1 to 5As shown, the box lid 2 includes a sealing strip 23 fixedly connected to the box lid 2. A sealing groove 21 is provided at the top of the cardboard box body 1. The sealing groove 21 and the sealing strip 23 are connected by an interference fit. The sealing strip 23 and the sealing groove 21 are provided with clearance openings at the positions of the two buckle components 4. The interference fit between the sealing strip 23 and the sealing groove 21 can effectively block the intrusion of external moisture and improve the moisture-proof performance of the packaging. The setting of the clearance opening can avoid the interference of the sealing strip 23 with the buckle component 4, ensuring that the normal opening and closing of the buckle and the sealing function do not affect each other, taking into account both stability and moisture-proof performance.

[0029] Furthermore, both ends of the lid 2 are provided with opening slots 22. The opening slots 22 provide a force point for the user to open the lid 2, making it easy to insert fingers and lift the lid 2 upwards, solving the problem of the difficulty in opening traditional packaging and improving the ease of use.

[0030] like Figures 1 to 5 As shown, the cardboard box body 1 consists of an inner box 11 and an outer box 12. The inner box 11 is used to hold the items to be packaged, and the outer box 12 is fitted outside the inner box 11. The outer surfaces of the outer box 12 and the box lid 2 are coated with a moisture-proof coating. The double-layer structure of the inner box 11 and the outer box 12 can provide double protection for the internal items. The moisture-proof coating on the outer surfaces of the outer box 12 and the box lid 2 can further enhance the overall moisture-proof capability and prevent external moisture from penetrating through the surface of the box.

[0031] It is worth noting that a buffer layer 13 is provided between the inner box 11 and the outer box 12. The buffer layer 13 is set to fit the outer wall of the inner box 11 and the inner wall of the outer box 12. The buffer layer 13 can absorb the impact of external forces generated during transportation or storage, reduce the collision damage to the inner box 11 and the contents, and has a good shock absorption protection effect, especially for fragile and easily deformable items.

[0032] Working principle and process: In use, the item to be packaged is placed directly into the cardboard box body 1, and then the box lid 2 is closed. The locking block 42 at the bottom of the box lid 2 first contacts the two locking rings 45 of the buckle assembly 4, and squeezes the locking rings 45 to rotate to both sides, causing the extension platform 46 to compress the return spring 44; when the locking block 42 is fully embedded between the two locking rings 45, the return spring 44 rebounds and drives the locking rings 45 to return to their original position, forming a ring-like locking of the locking block 42, realizing a stable lock between the box lid 2 and the cardboard box body 1; When the lid 2 is opened, the sealing strip 23 of the lid 2 and the sealing groove 21 of the carton body 1 form an interference fit, and the clearance avoids the buckle assembly 4 to ensure a gapless seal. The moisture-proof coating on the outer surface of the carton body 1 and the moisture-proof inner lining layer on the inner wall work together to block moisture, while the side wall buffer layer absorbs external impacts at any time. When opening, the user puts his finger into the opening groove 22 and pulls the lid 2 upward. The locking block 42 pushes the locking ring 45 to rotate to both sides again and compresses the return spring 44. After the locking block 42 disengages from the locking ring 45, the lid 2 can be opened.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A moisture-proof, interlocking packaging cardboard box, comprising a cardboard box body (1), characterized in that: The top of the paper box body (1) is provided with a lid (2), and the end of the paper box body (1) corresponding to the lid (2) is provided with two buckle components (4); the buckle component (4) includes a receiving groove (3) opened at the top of the paper box body (1), and a fixing plate (43) is installed on the lower inner wall of the receiving groove (3). The top of the fixing plate (43) is rotatably connected to two snap rings (45), and an extension platform (46) is fixedly connected to the opposite end of the two snap rings (45). The bottom end of the two extension platforms (46) is fixedly connected to a return spring (44), and the bottom ends of the two return springs (44) are fixed together with the fixing plate (43). The box cover (2) is connected to a fixing plate (41) at one end corresponding to the box body (1). The bottom end of the fixing plate (41) is fixedly connected to a snap block (42) that works with two snap rings (45). The box body (1) is composed of an inner box (11) and an outer box (12). The inner box (11) is used to hold the items to be packaged. The outer box (12) is fitted on the outside of the inner box (11). The outer surfaces of the outer box (12) and the box cover (2) are coated with a moisture-proof coating. A buffer layer (13) is provided between the inner box (11) and the outer box (12). The buffer layer (13) is fitted to the outer wall of the inner box (11) and the inner wall of the outer box (12).

2. The moisture resistant lock-buckle paper carton according to claim 1, wherein: The cross-section of the snap-fit ​​block (42) is circular, the cross-section of the two snap-fit ​​rings (45) is semi-circular, and the ends of the two snap-fit ​​rings (45) facing the snap-fit ​​block (42) are all arc-shaped.

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