A self-locking paper packaging box
By incorporating a self-locking structure with baffles and locking tabs on the paper packaging box, the shortcomings of existing packaging boxes in terms of protection and ease of operation are resolved, resulting in a self-locking paper packaging box that simplifies manufacturing and improves protective effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI CHUNBAI PRINTING MATERIALS CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-05-26
Smart Images
Figure CN224277937U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of packaging boxes, and in particular to a self-locking paper packaging box. Background Technology
[0002] In the modern packaging industry, packaging boxes are widely used across various sectors, from everyday items to high-end gifts, with different types meeting diverse needs. Currently, packaging boxes are mainly divided into two categories: lockable and non-lockable. Packaging boxes like shoe boxes typically do not have locking mechanisms; their design focuses on ease of access, allowing consumers to quickly see and retrieve the contents, meeting the needs of frequent daily item handling. On the other hand, gift boxes for items like rice dumplings and wine boxes often feature locking mechanisms, primarily to enhance product security and perceived quality, prevent contents from falling out or being stolen, provide better protection during transportation and storage, and enhance the sense of occasion when giving gifts.
[0003] However, while existing packaging boxes are well-suited to their respective applications, they also have significant drawbacks. For non-locking boxes, such as shoe boxes, there is a lack of effective protection during transportation or in scenarios requiring dust or drop prevention, making the contents vulnerable to damage or loss. For locked boxes, some locking mechanisms require the use of glue, tape, or other adhesives during manufacturing, increasing the complexity of the manufacturing process, potentially generating odors, and even affecting worker health. Furthermore, complex locking structures can lead to inconvenience, making opening and closing cumbersome for consumers. Therefore, to address these issues, this application provides a self-locking paper packaging box. Utility Model Content
[0004] To address the aforementioned issues, this application provides a self-locking paper packaging box.
[0005] This application provides a self-locking paper packaging box, comprising a lower box body consisting of a bottom plate, a bottom side plate, a bottom front plate and a rear plate, an upper box body consisting of a top plate and a top front plate, the rear plate and the top plate being connected, and a baffle protruding outward on the bottom side plate.
[0006] The top plate has a top side skirt consisting of a top side plate and an inner folding plate continuously arranged on both sides. When the top side plate and the inner folding plate are folded, they form a 90° angle with the top plate. The top side plate and the inner folding plate are also provided with locking pieces. The locking pieces are set inward and lock with the baffle. When the locking pieces are embedded in the top side skirt, they lose the locking effect on the baffle.
[0007] By setting outward-protruding baffles on the bottom side plate and locking plates on the top side skirt, the locking position can be controlled to control whether the locking plates and baffles are locked, thereby enabling the upper and lower box bodies to lock together and improving the practicality of the packaging box.
[0008] Preferably, the locking piece includes a locking piece one disposed on the top side plate and a locking piece two disposed on the inner retracting plate. The locking pieces one and the locking piece two are disposed in opposite directions. After the top side plate and the inner retracting plate are folded, the locking pieces one and the locking piece two overlap.
[0009] Preferably, both locking plate one and locking plate two have through slots formed on their respective corresponding plate surfaces on their outer sides.
[0010] Preferably, the inner plate has an insert on its free side, and the top plate also has a groove that matches the insert.
[0011] Preferably, a front top plate is provided on the side of the top plate away from the rear plate, and side skirts are provided on both sides of the front top plate, which are inserted between the top side plate and the inner retracting plate.
[0012] Preferably, insert plates are provided on both sides of the front and rear bottom plates, and slots are provided on the insert plates.
[0013] Preferably, the baffle plate has an inner buckle plate on the side away from the base plate, and the inner buckle plate has a groove that matches the slot.
[0014] Preferably, the insert plate is further provided with a folding piece for pushing the baffle position.
[0015] In summary, this application includes the following beneficial technical effects:
[0016] By setting outward-protruding baffles on the bottom side plate and locking plates on the top side skirt, the locking position can be controlled to control whether the locking plates and baffles are locked, thereby enabling the upper and lower boxes to lock themselves. The structure of this application can achieve the self-locking effect by simply cutting and folding corrugated cardboard, which has certain practicality. Attached Figure Description
[0017] Figure 1 It is the isometric drawing in Embodiment 1 of this application;
[0018] Figure 2 This is a vertical sectional view after folding in Embodiment 1 of this application;
[0019] Figure 3 This is a folded horizontal sectional view of Embodiment 1 of this application;
[0020] Figure 4 This is an enlarged view of point A in Embodiment 1 of this application;
[0021] Figure 5 This is an enlarged view of section B in Embodiment 1 of this application.
[0022] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Bottom side plate; 21. Baffle plate; 22. Inner buckle plate; 221. Groove; 3. Bottom front plate; 31. Insert plate one; 311. Slot one; 312. Folding piece one; 4. Rear plate; 41. Insert plate two; 411. Slot two; 412. Folding piece two; 5. Top plate; 51. Buckle groove; 52. Top side plate; 521. Locking piece one; 53. Inner retractable plate; 531. Locking piece two; 532. Inserting piece; 7. Top front plate; 71. Side skirt piece; 8. Through groove. Detailed Implementation
[0023] The following is in conjunction with the appendix Figure 1 - Figure 5 This application will be described in further detail.
[0024] Example 1:
[0025] A self-locking paper packaging box, as shown in the reference Figure 1 The diagram shows the unfolded state, starting from the base plate 1. The sides are bottom side plates 2, the front is the front base plate 3, and the rear is the rear plate 4. The rear of the rear plate 4 connects to the top plate 5, and the rear of the top plate 5 connects to the top front plate 7. The top plate 5 is connected to the top side plates 52 on both sides. The base plate 1, bottom side plates 2, front base plate 3, and rear plate 4 form the lower box, while the top plate 5, top front plate 7, and top side plates 52 form the upper box.
[0026] Both the top side plate 52 and the inner retractable plate 53 have through slots 8 at the positions of locking plate 1 521 and locking plate 2 531. The purpose of the through slots 8 is to allow control of locking plate 1 521 and locking plate 2 531. The through slots 8 can be made in the following manner: Figure 1 The side shown has an arc-shaped structure, and the gap between the arc-shaped position and the locking plate facilitates operation with fingers. Under normal circumstances, simple self-locking can be achieved at this position of the locking plate. If there is a need for anti-counterfeiting, an anti-counterfeiting label can be affixed to the outside of the fixed side plate, and a protrusion can be affixed to the inside of the anti-counterfeiting label to keep it in contact with the locking plate at all times. The locking plate and the stop plate 21 are always in a locked relationship.
[0027] An insert 532 structure is cut out on the side of the inner plate 53 away from the top side plate 52, which can be as follows: Figure 1 The trapezoidal structure shown can also be a rectangle or other structures. A buckle groove 51 is provided on the top plate 5 near the folding position of the top side plate 52. After the insert 532 is inserted into the buckle groove 51, the position of the top side plate 52 can be locked relative to it.
[0028] During the production process of the packaging box, a top front panel 7 is retained above the top panel 5, and side skirts 71 are also retained on both sides of the top front panel 7. The purpose of the side skirts 71 is to keep the top front panel 7 stable in the folded position.
[0029] The folding sequence of the upper box is as follows: First, fold both side skirts 71 upwards by 90°. Then, fold the top front panel 7 upwards by 90°. At this time, the side skirts 71 are located above the top panel 5. Next, fold the top side panel 52 upwards by 90°. At this time, the top side panel 52 and the side skirts 71 are in contact. Fold the inner panel 53 located above downwards by 180°, forming a 90° angle with the top panel 5. At this time, the side skirts 71 are located between the top side panel 52 and the inner panel 53. The folded insert 532 is inserted into the buckle slot 51, which can complete the fixation of the top side skirts. At this time, the top side skirts and the side skirts 71 of the top front panel 7 cooperate with each other. The side skirts 71 ensure that the top side skirts remain perpendicular to the top panel 5, and the top side skirts also ensure that the top front panel 7 and the top panel 5 remain perpendicular.
[0030] During the production and cutting process of the lower box body, insert plates 31 are retained on both sides of the front panel. A half-slot 311 is opened at the center line of the insert plate 31, and a longitudinal groove is opened on the outer side to form a folding piece 312. The middle position of the folding piece 312 is creased. Insert plates 41 with the same mirror structure are also set on both sides of the rear panel 4. The insert plates 41 have slots 411 and folding pieces 412. An inner buckle plate 22 is set on the outer side of the bottom side panel 2. A groove 221 is opened on the inner buckle plate 22. The groove 221 is used to match the slots 311 and 411.
[0031] During the folding process, refer to Figure 1 In the middle position, fold folding piece 312 and folding piece 412 towards the back. Then, fold insert plate 31 and insert plate 41 upwards by 90°. After completing the folding, fold the bottom front plate 3 and the bottom rear plate 4 upwards by 90°. At this time, insert plate 31 and insert plate 41 are located above the bottom plate 1. After completing the folding, fold the two bottom side plates 2 upwards by 90°. At this time, the position of the baffle 21 coincides with the folded folding piece 312 and folding piece 412. Therefore, under the action of folding piece 312 and folding piece 412, the baffle 21 will always be unfolded outwards. After folding the bottom side plates 2, fold the two inner buckle plates 22 inwards by 180°, and as shown... Figure 3 and Figure 5 As shown, the first insertion plate and the second slot 411 are respectively inserted into their corresponding grooves 221. After the insertion is completed, the side of the insertion plate with the folding piece is located between the bottom side plate 2 and the inner buckle plate 22, and the two sides of the inner buckle plate 22 are located between the second insertion plate 41 and the bottom side plate 2, thus realizing the combination of the lower box body.
[0032] The horizontal width of the upper box is greater than that of the lower box, which ensures the covering effect while leaving enough space for the baffle 21 to avoid the protruding baffle 21 affecting the movement of the upper box in the non-self-locking state.
[0033] The foregoing description of an exemplary embodiment of a self-locking paper packaging box provided by this disclosure refers to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.
Claims
1. A self-locking paper packaging box, comprising a lower box body composed of a bottom plate (1), a bottom side plate (2), a bottom front plate (3) and a back plate (4), an upper box body composed of a top plate (5) and a top front plate (7), and a connection between the back plate (4) and the top plate (5), characterized in that: The bottom side plate (2) is provided with a baffle (21) protruding outward. The top plate (5) is provided with top side skirts consisting of top side plates (52) and inner folding plates (53) on both sides. After folding, the top side plates (52) and inner folding plates (53) are at a 90° angle to the top plate (5). Locking pieces are also provided on the top side plates (52) and inner folding plates (53). The locking pieces protrude inward and lock with the baffle (21). When the locking pieces are embedded in the top side skirt, they lose the locking effect on the baffle (21).
2. The package of claim 1, wherein: The locking plate includes a locking plate one (521) disposed on the top side plate (52) and a locking plate two (531) disposed on the inner retracting plate (53). The locking plate one (521) and the locking plate two (531) are disposed in opposite directions. After the top side plate (52) and the inner retracting plate (53) are folded, the locking plate one (521) and the locking plate two (531) overlap.
3. The package of claim 2, wherein: Both locking plate one (521) and locking plate two (531) have through slots (8) formed on their respective corresponding plates on their outer sides.
4. The package of claim 3, wherein: The inner plate (53) has a insert (532) on its free side, and the top plate (5) also has a groove (51) that matches the insert (532).
5. The package of claim 4, wherein: The top plate (5) is provided with a front top plate (7) on the side away from the rear plate (4), and side skirts (71) are provided on both sides of the front top plate (7) and inserted between the top side plate (52) and the inner plate (53).
6. The package of claim 1, wherein: Both sides of the bottom front plate (3) and the rear plate (4) are provided with insert plates (31, 41), and slots (311, 411) are provided on the insert plates.
7. The pack of claim 6, wherein: The baffle (21) is provided with an inner buckle plate (22) on the side away from the base plate (1), and a groove (221) is provided on the inner buckle plate (22) to cooperate with the slot.
8. The packaging box according to claim 7, characterized in that: The insert plates (31, 41) are also provided with folding plates (312, 412) for pushing the baffle (21) position.