A packaging box with linkage uncovering structure

Abstract

The utility model discloses a kind of packaging box with linkage uncovering structure, including box body, be provided with accommodating cavity and the opening being communicated with accommodating cavity in box body, slidingly cooperate with slide cover on box body, be equipped with driving portion on slide cover, driving portion is equipped with linkage mechanism on box body cooperation;Linkage mechanism includes elastic member and sealing cover, the first end of elastic member is rotatably connected with box body, second end is rotatably connected with sealing cover, sealing cover is used to close opening;Guiding structure is equipped on elastic member, and stress surface is formed on guiding structure;When slide cover slides relative to box body, driving portion moves along guiding structure and interacts with stress surface, drives elastic member to produce elastic deformation, to drive sealing cover rotation to open opening.The utility model can automatically trigger linkage mechanism by single sliding operation slide cover, to open sealing cover;User does not need to perform the two independent actions of "first sliding outer cover, then pry open inner cover", realize the real sense one-step access.

Description

Technical Field

[0001] This utility model particularly relates to a packaging box with a linked opening structure. Background Technology

[0002] Existing sliding-top packaging boxes include a box body with a cavity inside, an opening on the box body communicating with the cavity, a sliding cover that slides onto the box body, and an inner cover that seals the opening. When a user needs to remove the candy, they first need to slide their finger open the outer sliding cover, moving it relative to the box body to expose the inner plastic cover. Then, they need to insert their finger into the edge of the small cap on the inner cap and apply a prying force sufficient to overcome the interference fit resistance to lift this small cap, opening the opening and allowing the candy to be poured out. However, this structural design has the following drawbacks:

[0003] Retrieving the candy requires two separate actions: "slide first, then pry open," making the process complex and preventing a convenient one-step operation. This solution relies on two independent cap systems—an outer and an inner cap—as well as a precision-injected inner cap component with a small lid. This not only increases mold and material costs but also complicates the assembly process. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a packaging box with a linkage opening structure.

[0005] A packaging box with a linked opening structure includes a box body, a receiving cavity and an opening communicating with the receiving cavity, and a sliding cover slidably fitted onto the box body. The sliding cover is characterized by having a driving part, and the box body having a linkage mechanism cooperating with the driving part. The linkage mechanism includes an elastic element and a sealing cover. A first end of the elastic element is rotatably connected to the box body, and a second end is rotatably connected to the sealing cover, the sealing cover being used to close the opening. The elastic element has a guide structure with a force-bearing surface. When the sliding cover slides relative to the box body, the driving part moves along the guide structure and interacts with the force-bearing surface, causing the elastic element to undergo elastic deformation, thereby rotating the sealing cover to open the opening.

[0006] Preferably, the driving part is a wedge-shaped block; the guiding structure is a channel opened on the elastic member, and the channel is provided with an inclined step, the inclined surface of which constitutes the force-bearing surface.

[0007] Preferably, the box body has a mounting groove, the elastic element is accommodated in the mounting groove, and the first end of the elastic element is rotatably connected to the side wall of the mounting groove.

[0008] Preferably, the elastic element and the sealing cover are integrally formed; a first notch is provided at the connection between the elastic element and the sealing cover, and the outline of the first notch is triangular; the top of the first notch forms a first elastic bending portion; when the elastic element is driven to move into the mounting groove, the sealing cover can fold relative to the elastic element around the first elastic bending portion.

[0009] Preferably, the sliding cover has a recessed mounting groove on its inner side, and a mounting plate is detachably snapped into the mounting groove; the driving part is a wedge-shaped block, which is disposed on the side surface of the mounting plate facing the elastic member.

[0010] Preferably, mounting platforms are symmetrically arranged on both sides of the linkage mechanism on the box body, and sliders are provided on the mounting platforms, with the sliding cover slidingly engaging with the sliders.

[0011] Preferably, the sealing cover has a protrusion on the side facing away from the accommodating cavity, and the mounting plate of the sliding cover always moves in contact with the surface of the protrusion during the movement. The protrusion is used to space between the mounting plate and the elastic member when the sliding cover moves, so as to maintain a predetermined distance between the two.

[0012] Preferably, a second notch is integrally formed at the connection between the first end of the elastic element and the side wall of the mounting groove; the cross-section of the second notch is a right-angled triangle; the acute vertex of the right-angled triangle forms a second pivot, and the elastic element can rotate around the second pivot as a fulcrum.

[0013] Preferably, the elastic element and the sealing cap are made of plastic.

[0014] Preferably, a mounting base is detachably mounted on the box body, and the second notch is formed at the connection between the first end of the elastic member and the mounting base.

[0015] The beneficial effects of this utility model are:

[0016] This invention automatically triggers a linkage mechanism through a single sliding operation of the cover, thereby opening the sealing cover. Users no longer need to perform two separate actions: sliding the outer cover first and then prying open the inner cover, achieving truly one-step access. Furthermore, by integrating the drive unit, elastic element, and sealing cover, the original two-part structure of "outer cover + inner cover" is simplified into a single, highly efficient linkage mechanism. This significantly reduces the number of parts, mold costs, and material costs, while also simplifying assembly processes, improving production efficiency, and making it more suitable for large-scale manufacturing. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of the structure of a packaging box with a linkage opening mechanism according to this application. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of a packaging box with a linkage opening mechanism according to this application. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the structure of a packaging box with a linkage opening mechanism according to this application. Figure 3 ;

[0021] Figure 4 This is a schematic diagram of the structure of a packaging box with a linkage opening mechanism according to this application. Figure 4 ;

[0022] Figure 5 This is a schematic diagram of the structure of a packaging box with a linkage opening mechanism according to this application. Figure 5 ;

[0023] Figure 6 This is a schematic diagram of the structure of a packaging box with a linkage opening mechanism according to this application. Figure 6 ;

[0024] Figure 7 This is a schematic diagram of the structure of a packaging box with a linkage opening mechanism according to this application. Figure 7 ;

[0025] Figure 8 This is a schematic diagram of the linkage mechanism when the packaging box is opened. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0027] The orientation shown in the accompanying drawings should not be construed as limiting the specific protection scope of this utility model, but is only for reference and understanding of preferred embodiments. The product components shown in the drawings can be changed in position, increased in number, or simplified in structure.

[0028] The “connection” described in the specification and the “connection” relationship between the components shown in the accompanying drawings can be understood as a fixed connection, a detachable connection, or a connection that forms an integral unit; it can be a direct connection or a connection through an intermediate medium. Those skilled in the art can understand the connection relationship according to the specific circumstances and can derive different implementation methods such as screwing, riveting, soldering, snap-fitting, or embedding to suitably replace it.

[0029] The directional terms such as up, down, left, right, top, and bottom mentioned in the instruction manual and the directions shown in the attached drawings indicate that the components can directly contact each other or contact each other through other features; for example, "up" can mean directly above or diagonally above, or it simply means above other objects; other directions can be understood by analogy.

[0030] The materials used to manufacture solid-shaped parts as shown in the specification and drawings may be metallic, non-metallic, or other synthetic materials. The machining processes used for solid-shaped parts may include stamping, forging, casting, wire cutting, laser cutting, injection molding, CNC milling, 3D printing, machining, etc. Those skilled in the art may adapt or combine the above materials and manufacturing processes according to different processing conditions, costs, and precision requirements.

[0031] A packaging box with a linked opening structure includes a box body 1, a receiving cavity 2 and an opening 3 communicating with the receiving cavity 2, and a sliding cover 4 slidably fitted on the box body 1. The sliding cover 4 is characterized by having a driving part 41, and the box body 1 having a linkage mechanism cooperating with the driving part 41. The linkage mechanism includes an elastic element 51 and a sealing cover 52. A first end of the elastic element 51 is rotatably connected to the box body 1, and a second end is rotatably connected to the sealing cover 52. The sealing cover 52 is used to close the opening 3. The elastic element 51 has a guide structure 6, and a force-bearing surface is formed on the guide structure 6. When the sliding cover 4 slides relative to the box body 1, the driving part 41 moves along the guide structure 6 and interacts with the force-bearing surface, causing the elastic element 51 to undergo elastic deformation, thereby driving the sealing cover 52 to rotate and open the opening 3.

[0032] Furthermore, the driving part 41 is a wedge-shaped block; the guide structure 6 is a channel 61 opened on the elastic member 51, and the channel 61 is provided with an inclined step 62, the inclined surface of which constitutes the force-bearing surface.

[0033] Furthermore, the box body 1 is provided with a mounting groove 10, the elastic member 51 is accommodated in the mounting groove 10, and the first end of the elastic member 51 is rotatably connected to the side wall of the mounting groove 10.

[0034] Furthermore, the elastic element 51 and the sealing cover 52 are integrally formed; a first notch 521 is provided at the connection between the elastic element 51 and the sealing cover 52, and the outline of the first notch 521 is triangular; the top of the first notch 521 forms a first elastic bending portion 5210; when the elastic element 51 is driven to move into the mounting groove 10, the sealing cover 52 can fold relative to the elastic element 51 around the first elastic bending portion 5210.

[0035] Furthermore, the sliding cover 4 has a recessed mounting groove 410 on its inner side, and a mounting plate 42 is detachably snapped into the mounting groove 410; the driving part 41 is a wedge-shaped block, which is disposed on the side surface of the mounting plate 42 facing the elastic member 51.

[0036] Furthermore, mounting platforms 7 are symmetrically arranged on both sides of the linkage mechanism on the box body 1, and sliders 71 are provided on the mounting platforms 7. The sliding cover 4 is slidably engaged with the sliders 71.

[0037] Furthermore, the sealing cover 52 has a protrusion 5211 on the side facing away from the accommodating cavity 2. The mounting plate 42 of the sliding cover 4 always moves in contact with the surface of the protrusion 5211 during the movement. The protrusion 5211 is used to be spaced between the mounting plate 42 and the elastic member 51 when the sliding cover 4 moves, so as to maintain a predetermined distance between the two.

[0038] Furthermore, an integrally formed second notch 8 is formed at the connection between the first end of the elastic member 51 and the side wall of the mounting groove 10; the cross-section of the second notch 8 is a right-angled triangle; the acute vertex of the right-angled triangle forms a second pivot 81, and the elastic member 51 can rotate around the second pivot 81 as a fulcrum.

[0039] Furthermore, the elastic element 51 and the sealing cap 52 are made of plastic.

[0040] Furthermore, a mounting base 9 is detachably mounted on the box body 1, and the second notch 8 is formed at the connection between the first end of the elastic member 51 and the mounting base 9.

[0041] The working principle of this utility model is as follows:

[0042] The box body 1 has an internal cavity 2 for holding candy, snacks, and other items. An opening 3 communicating with the cavity 2 is provided on the box body 1, allowing items to be retrieved. A sliding cover 4 is slidably mounted on the top of the box body 1. The user slides the cover by pushing it. As an example of embodiment 1, the drive unit 41 uses a wedge block as an example to illustrate the concept of this application. When the sliding cover 4 slides relative to the box body 1, since the wedge block is mounted on the sliding cover 4, the cover 4 drives the wedge block inside it to slide together. The wedge block slides forward within the channel 61 of the elastic member 51. When the wedge block slides to contact the inclined step 62 within the channel 61, the inclined surface of the wedge block begins to apply a downward pressure to the inclined surface of the step 62. This downward pressure is transmitted to the entire elastic member 51, forcing the elastic member 51 to swing downward within the mounting groove 10 with its connection point with the side wall of the mounting groove 10 as the second pivot 81. At this time, the middle and second end of the elastic member 51 begin to... As the elastic element 51 moves closer to the second pivot 81, its second end displaces into the mounting groove 10. As the elastic element 51 continues to move into the mounting groove 10, the sealing cover 52 comes into contact with the structure surrounding the opening 3 of the box body 1, and its translational movement into the mounting groove 10 is interfered with. Under the continuous action of the driving part 41, due to the restricted translation, the connection between the elastic element 51 and the sealing cover 52 bears a bending moment. This bending moment forces the first elastic bending portion 5210 to undergo elastic deformation. This bending action causes the sealing cover 52 to fold over and partially move into the empty space inside the mounting groove 10, using the first elastic bending portion 5210 as an axis. It is this folding and incorporation movement that ultimately causes the sealing cover 52 to detach from the opening 3, thereby opening the packaging box. In this technical solution, the force-bearing surface is the inclined surface of the step 62.

[0043] When the user slides the sliding cover 4 in the opposite direction, the sliding cover 4 causes the wedge block on it to move back along the original path within the channel 61. As the wedge block gradually disengages from the step 62, the downward pressure it exerts on the elastic element 51 disappears. Under the elastic restoring force of its own material, the elastic element 51 tends to recover its deformation. This recovery movement involves two synergistic effects:

[0044] Firstly, the elastic element 51 swings upward and rebounds with its second pivot at its first end as the center, tending to restore its initial shape;

[0045] Secondly, during the retraction process, the wedge-shaped block interacts with the inner wall of the channel 61, providing an auxiliary and guiding push effect on the elastic element 51, facilitating its smoother unfolding and repositioning. As the elastic element 51 repositions and unfolds, it drives the rotatably connected sealing cover 52 to move synchronously, ultimately causing the sealing cover 52 to close over the opening 3, re-establishing a seal.

[0046] Based on the above technical solution, this application provides an assembly groove 410 recessed on the inner side of the sliding cover 4. An independent mounting plate 42 can be detachably fixed in the assembly groove 410 by a snap fastener. A wedge block can be directly formed on the side surface of the mounting plate 42 facing the inside of the box 1. This design facilitates production and assembly.

[0047] Based on the above technical solution, on the box body 1, on both sides of the accommodating cavity 2 and the linkage mechanism, two mounting platforms 7 are symmetrically arranged. Each mounting platform 7 is fixedly equipped with a slider 71. On the inner side of the sliding cover 4, there are sliding grooves 1-1 that match the slider 71, so that they can form a sliding fit with the slider 71. This design ensures the smoothness and stability of the sliding process of the sliding cover 4.

[0048] Based on the above technical solution, a strip-shaped or block-shaped protrusion 5211 is provided on the back of the sealing cover 52. When the sliding cover 4 slides, the lower surface of the mounting plate 42 inside it always moves in contact with the upper surface of the protrusion 5211. The core function of this protrusion 5211 is to act as a physical spacer. It maintains a constant and predetermined distance between the mounting plate 42 and the elastic member 51 below, effectively preventing the sliding cover 4 from rubbing against or even damaging the elastic member 51 during the sliding process.

[0049] Based on the above technical solution, the specific implementation of the elastic element 51 mentioned above, with its connection point with the side wall of the mounting groove 10 as the second pivot 81, can be as follows: the first end of the elastic element 51 is connected to the side wall of the mounting groove 10 through an integrally formed structure. The connection structure is a second notch 8 with a right-angled triangle cross section. One acute vertex of this right-angled triangle is defined as the connection point between the elastic element 51 and the side wall of the mounting groove 10, i.e., the second pivot 81.

[0050] Based on the above technical solution, an independent mounting base 9 is detachably installed on the box body 1, and the second notch 8 is set at the connection between the first end of the elastic element 3 and the mounting base 9. The mounting base 9 is designed to be detachably connected to the box body 1, allowing the mounting base 9 and the box body 1, as well as other components such as the elastic element, to be manufactured separately. This reduces the mold complexity and molding difficulty of individual parts. During assembly, the pre-assembly of the elastic element 3 and the mounting base 9 can be completed independently and in parallel, and then the assembly can be installed onto the box body 1 at once, simplifying the process and improving assembly efficiency and yield.

[0051] This invention automatically triggers a linkage mechanism through a single sliding operation of the cover, thereby opening the sealing cover. Users no longer need to perform two separate actions: sliding the outer cover first and then prying open the inner cover, achieving truly one-step access. Furthermore, by integrating the drive unit, elastic element, and sealing cover, the original two-part structure of "outer cover + inner cover" is simplified into a single, highly efficient linkage mechanism. This significantly reduces the number of parts, mold costs, and material costs, while also simplifying assembly processes, improving production efficiency, and making it more suitable for large-scale manufacturing.

[0052] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A packaging box with a linked opening structure, characterized in that, The device includes a box body (1), which has a receiving cavity (2) and an opening (3) communicating with the receiving cavity (2). A sliding cover (4) is slidably fitted onto the box body (1). The device is characterized in that: a driving part (41) is provided on the sliding cover (4), and a linkage mechanism that cooperates with the driving part (41) is provided on the box body (1); the linkage mechanism includes an elastic element (51) and a sealing cover (52), the first end of the elastic element (51) being rotatably connected to the box body (1), and the second end being connected to... The sealing cover (52) is rotatably connected and is used to close the opening (3); the elastic member (51) is provided with a guide structure (6) and a force-bearing surface is formed on the guide structure (6); when the sliding cover (4) slides relative to the box body (1), the driving part (41) moves along the guide structure (6) and interacts with the force-bearing surface, causing the elastic member (51) to produce elastic deformation, thereby driving the sealing cover (52) to rotate to open the opening (3).

2. A packaging box with a linked opening structure according to claim 1, characterized in that, The driving part (41) is a wedge-shaped block; the guide structure (6) is a channel (61) opened on the elastic member (51), and the channel (61) is provided with an inclined step (62), the inclined surface of which constitutes the force-bearing surface.

3. A packaging box with a linked opening structure according to claim 1, characterized in that, The box body (1) has an installation groove (10) and the elastic element (51) is housed in the installation groove (10), and the first end of the elastic element (51) is rotatably connected to the side wall of the installation groove (10).

4. A packaging box with a linked opening structure according to claim 3, characterized in that, The elastic element (51) and the sealing cap (52) are integrally formed; a first notch (521) is provided at the connection between the elastic element (51) and the sealing cap (52), and the outline of the first notch (521) is triangular; the top of the first notch (521) forms a first elastic bending portion (5210); when the elastic element (51) is driven to move into the mounting groove (10), the sealing cap (52) can fold relative to the elastic element (51) around the first elastic bending portion (5210).

5. A packaging box with a linked opening structure according to claim 1, characterized in that, The sliding cover (4) has a recessed mounting groove (410) on its inner side, and a mounting plate (42) is detachably snapped into the mounting groove (410); the driving part (41) is a wedge-shaped block, which is disposed on the side surface of the mounting plate (42) facing the elastic member (51).

6. A packaging box with a linked opening structure according to claim 1, characterized in that, The box body (1) is symmetrically provided with mounting platforms (7) on both sides of the linkage mechanism. The mounting platforms (7) are provided with sliders (71), and the sliding cover (4) is slidably engaged with the sliders (71).

7. A packaging box with a linked opening structure according to claim 1, characterized in that, The sealing cover (52) has a protrusion (5211) on the side facing away from the accommodating cavity (2). The mounting plate (42) of the sliding cover (4) always moves in contact with the surface of the protrusion (5211) during the movement. The protrusion (5211) is used to be spaced between the mounting plate (42) and the elastic member (51) when the sliding cover (4) moves, so as to maintain a predetermined distance between the two.

8. A packaging box with a linked opening structure according to claim 3, characterized in that, A second notch (8) is integrally formed at the connection between the first end of the elastic element (51) and the side wall of the mounting groove (10); the cross-section of the second notch (8) is a right triangle; the acute vertex of the right triangle forms a second pivot (81), and the elastic element (51) can rotate around the second pivot (81) as a fulcrum.

9. A packaging box with a linked opening structure according to claim 7, characterized in that, The elastic element (51) and the sealing cap (52) are made of plastic.

10. A packaging box with a linked opening structure according to claim 8, characterized in that, A mounting base (9) is detachably mounted on the box body (1), and the second notch (8) is formed at the connection between the first end of the elastic member (51) and the mounting base (9).

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