Fixed plug-in box with lining
The fixed interlocking box with a single-piece integrated molding design solves the production complexity and environmental problems caused by the traditional split structure, and realizes glue-free connection between the box body and the inner lining, improving production efficiency and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG PACIFIC PRINTING & PACKAGING CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-12
AI Technical Summary
Existing lined interlocking boxes use a split structure design, which leads to complex production processes, high costs, and environmental problems, making it difficult to achieve high-speed continuous operation.
Adopting a single-piece, one-piece molding design, the box body and inner lining structure are fixed together with a snap-fit structure to achieve glue-free fastening, simplifying the production process and improving stability.
简化生产流程,降低成本,提升生产效率,符合绿色包装发展趋势,避免胶黏剂带来的环保问题。
Smart Images

Figure CN224225536U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of packaging box technology, specifically relating to a fixed insert box with an inner lining. Background Technology
[0002] Lined interlocking boxes, widely used in pharmaceuticals, handicrafts, and other packaging containers, primarily function to provide positioning protection and cushioning for the contents through their inner lining structure. Currently, most mainstream products on the market employ a separate box body and lining design, where the box body and lining are assembled from independently die-cut cardboard pieces. This type of structure requires separate box body molding and lining processing during production, followed by adhesive application to secure the two together.
[0003] However, the traditional modular design has significant technical drawbacks in practical applications: First, the modular production model complicates the process, requiring separate molding, cutting, and forming processes for the box body and liner, significantly increasing production costs and time. Second, the use of adhesives not only increases material costs but also poses environmental risks due to the volatilization of organic solvents, which is inconsistent with the current trend of green packaging development. Furthermore, in assembly lines, the step-by-step assembly process makes high-speed continuous operation difficult, hindering further improvements in production efficiency.
[0004] To address the aforementioned issues, this utility model proposes a fixed insert box with an inner lining. While ensuring cushioning and protection performance, the integrated cut-piece design enables efficient glue-free fixing of the box body and the inner lining, simplifying the production process, reducing overall costs, and improving the overall stability and environmental friendliness of the packaging structure. Utility Model Content
[0005] To achieve the above objectives, this utility model provides the following technical solution: a liner-fixed interlocking box, comprising a single-piece integrally molded cut piece, the cut piece comprising a box body structure, an inner liner structure, and a snap-fit structure, the box body structure comprising two first side plates and two second side plates, the two first side plates and the two second side plates being alternately and connected in series, wherein a cover plate is connected to the top and bottom of one of the first side plates, and an insertion tongue is connected to one side of the cover plate; the inner liner structure comprises a first abutting plate, both sides of the first abutting plate being connected to partitions, and a second abutting plate being connected to one side of the partitions, wherein one of the second abutting plates is connected to the tail end of the series-connected second side plates;
[0006] The snap-fit structure includes a snap tongue and a snap-fit slot. The snap tongue is respectively disposed on the surface of the first abutment plate and the second abutment plate, and the snap-fit slot is respectively opened on the surface of the two first side plates.
[0007] As a preferred embodiment of this utility model, both first side plates and both second side plates are rectangular structures with equal lengths.
[0008] As a preferred technical solution of this utility model, the latch is symmetrically arranged and is an integral structure with the corresponding first abutment plate and second abutment plate. The edge of the latch is provided with a cutting line by pressure cutting.
[0009] As a preferred embodiment of this utility model, the top and bottom ends of the two second side plates are connected to snap-fit plates.
[0010] As a preferred embodiment of this utility model, each component of the box structure and the inner lining structure is provided with easy-folding creases at the connection points.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] (1) This utility model adopts a single-piece integrated molding design, which abandons the traditional model of separate box body and inner lining structure that requires separate molding, cutting and forming processes. It integrates the production of box body and inner lining into one, which significantly reduces production steps, shortens production cycle, and reduces labor and time costs. It makes the assembly process of insert box simpler and smoother, and can adapt to the production needs of high-speed continuous operation. It changes the situation that traditional step assembly is difficult to achieve efficient production, improves the operation efficiency of production line, and can meet the requirements of large-scale production.
[0013] (2) The snap-fit structure design of this utility model ensures a stable connection between the inner lining structure and the box structure, avoiding the phenomenon of inner lining falling off due to problems such as adhesive failure; there is no need to use adhesive to connect the box body and the inner lining, further saving material costs and improving production efficiency. Moreover, it avoids the environmental problems caused by the volatilization of organic solvents during the use of adhesives, which is in line with the current development trend of green packaging. Attached Figure Description
[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0015] Figure 1 This is a unfolded plan view of the present invention;
[0016] Figure 2 This is a schematic diagram of the structure of this utility model after folding;
[0017] In the diagram: 1. First side plate; 2. Second side plate; 3. Cover plate; 4. Tongue; 5. First abutment plate; 6. Partition plate; 7. Second abutment plate; 8. Locking tongue; 9. Locking seam; 10. Cutting line; 11. Locking plate; 12. Easy crease. Detailed Implementation
[0018] 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.
[0019] Example
[0020] Please see Figure 1-2 This utility model provides the following technical solution: a liner-fixed interlocking box, comprising a single-piece integrally molded cut piece, the cut piece including a box body structure, an inner lining structure, and a snap-fit structure. The box body structure includes two first side plates 1 and two second side plates 2, which are alternately and connected in series. A cover plate 3 is connected to both the top and bottom of one first side plate 1, and a tongue 4 is connected to one side of the cover plate 3. The inner lining structure includes a first abutting plate 5, with partitions 6 connected to both sides of the first abutting plate 5. A second abutting plate 7 is connected to one side of each partition 6. The second abutting plate 7 is connected in series with... The tail end of the second side plate 2; the snap-fit structure includes a snap tongue 8 and a snap seam 9. The snap tongue 8 is respectively set on the surface of the first abutment plate 5 and the second abutment plate 7. The snap seam 9 is respectively opened on the surface of the two first side plates 1. The two first side plates 1 and the two second side plates 2 are all rectangular structures with equal lengths. The snap tongue 8 is symmetrically arranged and is an integral structure with the corresponding first abutment plate 5 and the second abutment plate 7. The edge of the snap tongue 8 is provided with a cutting line 10 by pressure cutting. The top and bottom ends of the two second side plates 2 are connected with snap-fit plates 11. The connection between each component of the box structure and the inner lining structure is provided with easy creases 12.
[0021] In summary, by utilizing the above-mentioned technical solution of this utility model, when assembling the liner-fixed insert box, the single-piece integrally formed cut piece is first bent along the easy fold line 12, so that the two first side plates 1 and the two second side plates 2 alternately surround each other, initially constructing a three-dimensional frame structure of the box body. At the same time, the three-dimensional structure of the first abutment plate 5, partition plate 6, and second abutment plate 7 in the liner structure, bent at ninety degrees along the corresponding easy fold line 12, is placed inside the box body to form an inner liner space for fixing the contents. Among them, the first abutment plate 5 and the second abutment plate 7, after being folded, respectively abut against the inner walls of the two first side plates 1 of the box body structure. The latches 8 on their surfaces are made foldable by pressing and cutting lines 10. The two sides of the latches 8 are respectively inserted into the latch seams 9 on the surface of the first side plates 1 and then unfolded, thereby achieving a stable connection between the liner structure and the box body structure and fixing the box body structure.
[0022] Finally, the snap-fit plates 11 at the top and bottom of the second side panel 2 are folded inwards, and the cover plates 3 at the top and bottom of the first side panel 1 are folded inwards to cover the surface of the snap-fit plates 11. The latches 4 are then inserted into the gap formed between the snap-fit plates 11 and the first side panel 1, completing the assembly of the entire insert box. This method of fixing the box body and the inner liner without glue through a snap-fit structure makes the assembly of the insert box convenient and efficient, and can effectively fix the contents, giving full play to the positioning, protection, cushioning and shock absorption functions of the inner liner.
[0023] Finally, it should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A liner-lined, fixed insert box, comprising a single-piece, integrally molded cut piece, characterized in that: The cut piece includes a box structure, an inner lining structure, and a snap-fit structure. The box structure includes two first side plates (1) and two second side plates (2). The two first side plates (1) and the two second side plates (2) are alternately and connected in series. The top and bottom ends of one of the first side plates (1) are connected to a cover plate (3). The cover plate (3) is connected to a tongue (4) on one side. The inner lining structure includes a first abutting plate (5). The first abutting plate (5) is connected to two partitions (6) on both sides. The partitions (6) are connected to a second abutting plate (7) on one side. The second abutting plate (7) is connected to the tail end of the connected second side plates (2). The snap-fit structure includes a snap tongue (8) and a snap slot (9). The snap tongue (8) is respectively disposed on the surface of the first abutting plate (5) and the second abutting plate (7), and the snap slot (9) is respectively opened on the surface of the two first side plates (1).
2. The liner-lined fixed insertion box according to claim 1, characterized in that: Both first side plates (1) and both second side plates (2) are rectangular structures with equal lengths.
3. A liner-lined fixed insertion box according to claim 1, characterized in that: The latch (8) is symmetrically arranged and is an integral structure with the corresponding first abutment plate (5) and second abutment plate (7). The edge of the latch (8) is provided with a cutting line (10) by pressure cutting.
4. A liner-lined fixed insertion box according to claim 1, characterized in that: Both of the second side plates (2) are connected to snap-fit plates (11) at their top and bottom ends.
5. A liner-lined fixed insertion box according to claim 1, characterized in that: The connection points between each component of the box structure and the inner lining structure are provided with easy-folding creases (12).