Flip packaging box

Abstract

The utility model discloses a flip packaging box which is used for containing articles. The cover comprises a first cover body, a second cover body and a connecting structure, the first cover body is connected with the second cover body in a turnover mode through the connecting structure, a folding line is arranged on the connecting structure, a protruding part and a sunken part are arranged on the two sides of the folding line respectively, and when the first cover body and the second cover body are mutually closed, the protruding part and the sunken part are connected in a turnover mode. And the convex part is embedded into the concave part to form a sealing structure.

Description

Technical Field

[0001] This application relates to the field of packaging products, and particularly to a flip-top box. Background Art

[0002] In modern packaging technology, flip-top boxes are widely used in the packaging of various liquid products. However, there are still some problems with the existing flip-top box designs in terms of leak-proof performance and production costs. Common flip-top boxes use a snap-lock design. Although this design is convenient for opening and closing, there are usually small gaps between the lid and the box body, resulting in easy leakage of liquids, which affects the product quality and user experience.

[0003] To improve the leak-proof performance, some existing technologies adopt a lid-and-bottom design. The lid-and-bottom design consists of two independent parts, the lid and the box body, which can provide a better sealing effect when closed. However, this design requires the production of two independent molds, increasing the mold cost and the complexity of the production process, thus raising the overall production cost. In addition, the production process of multiple assemblies and adjustments also increases the labor cost and time cost.

[0004] In the existing technical literature, some improvements have been made to the connection structure of flip-top boxes. For example, the prior art provides a design of a flip-top box, in which the upper lid and the lower lid are connected by a simple snap-lock structure. However, this connection method still has deficiencies in leak-proof performance because the snap-lock structure cannot ensure a completely tight fit between the upper lid and the lower lid, resulting in the possibility of liquid leakage. Summary of the Utility Model

[0005] This application provides a flip-top packaging box, including:

[0006] A first lid, a second lid, and a connection structure. The first lid is foldably connected to the second lid through the connection structure. The connection structure is provided with a fold line, and a convex part and a concave part are respectively arranged on both sides of the fold line. When the first lid and the second lid are closed with each other, the convex part is embedded into the concave part to form a sealing structure.

[0007] Optionally, the three parts of the first lid, the second lid, and the connection structure are integrally formed by one mold.

[0008] Optionally, the concave part is hollowed out with an elongated through hole.

[0009] Optionally, three elongated concave parts are formed on the connection structure.

[0010] Optionally, a retaining wall is arranged at the edge of the first lid, and a groove or a protrusion is arranged on the inner surface of the retaining wall. A flange is arranged on the second lid. When the first lid and the second lid are closed, the flange of the second lid is snapped into the groove or abuts against the protrusion.

[0011] Optionally, the inner wall of the first lid is bent outward at the edge to form a first abutting surface, and the inner wall of the second lid is bent outward at the edge to form a second abutting surface. When the first lid and the second lid are closed, the first abutting surface and the second abutting surface are closely attached to each other.

[0012] Optionally, the first lid is the upper lid and the second lid is the lower lid.

[0013] Optionally, inward chamfers are provided on both sides of the connecting structure.

[0014] Optionally, a plurality of reinforcing ribs are provided on the first lid and the second lid.

[0015] Optionally, the enclosure is bent outward to form a contact surface for contact.

[0016] It can be seen from the above technical solutions that the present application has the following advantages:

[0017] 1. By providing a broken line and the protruding and recessed parts on both sides thereof on the connecting structure, when the first lid and the second lid are closed, the protruding part is embedded in the recessed part to form a tight sealing structure. This design can effectively prevent the leakage of liquid and ensure the safety of the items in the packaging box.

[0018] 2. Using the connecting structure provided in the present application to connect the first lid and the second lid can facilitate the manufacturing by the one-piece molding method with a single mold, simplify the production process, reduce the number of molds and production steps, and thus reduce the production cost.

[0019] 3. The packaging box provided in the present application ensures the sealing effect while realizing the flip connection method, and has very good applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is an overall structural schematic diagram of the flip-top packaging box provided in the present application;

[0021] Figure 2 is another overall structural schematic diagram of the flip-top packaging box provided in the present application;

[0022] Figure 3 is a structural schematic diagram of the connecting structure of the flip-top packaging box provided in the present application;

[0023] Figure 4 is another structural schematic diagram of the connecting structure of the flip-top packaging box provided in the present application;

[0024] Figure 5 is yet another overall structural schematic diagram of the flip-top packaging box provided in the present application;

[0025] Figure 6 This is a schematic cross-sectional structure diagram when the flip cover packaging box provided in this application is closed.

[0026] Explanation of reference numerals:

[0027] 01: First cover; 02: Second cover; 03: Connection structure; 04: Fold line; 05: Protrusion: 06: Recess; 07: Long through hole; 08: Enclosure; 09: Flange; 10: Protrusion; 11: First abutting surface; 12: Second abutting surface; 13: Chamfer; 14: Reinforcing rib; 15: Contact surface. Detailed implementation manners

[0028] In this application, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings, and is only used to illustrate the relative positional relationship between each component or component part, and does not particularly limit the specific installation orientation of each component or component part.

[0029] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0030] In addition, the terms "install", "set", "be provided with", "connect", "be connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is an internal connection between two devices, elements or component parts. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] In addition, the structures, proportions, sizes, etc. drawn in the drawings in this application are only used to cooperate with the content disclosed in the specification for those of ordinary skill in the art to understand and read, and are not used to limit the implementable limiting conditions of this application. Therefore, they do not have technical substantial significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the efficacy that this application can produce and the purpose that can be achieved, should still fall within the scope covered by the technical content disclosed in this application.

[0032] The technical solutions in the present application will be clearly and completely described below with reference to the accompanying drawings in the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0033] Referring to Figures 1 to 4 , the present application first provides an embodiment of a flip-top packaging box, and this embodiment includes:

[0034] A first lid 01, a second lid 02 and a connecting structure 03. The first lid 01 is foldably connected to the second lid 02 through the connecting structure 03. A folding line 04 is provided on the connecting structure 03. A convex portion 05 and a concave portion 06 are respectively provided on both sides of the folding line 04. When the first lid 01 and the second lid 02 are closed to each other, the convex portion 05 is embedded in the concave portion 06 to form a sealing structure.

[0035] The embodiment of the flip-top packaging box provided in this embodiment mainly consists of three parts: a first lid 01, a second lid 02 and a connecting structure 03. The following is a detailed description of this embodiment:

[0036] First lid 01: This is a lid of the packaging box, used to cover and protect the contents inside the box.

[0037] The first lid 01 can be rectangular, square or other suitable shapes, and the specific shape depends on the design and use of the packaging box.

[0038] Second lid 02: The second lid 02 is similar to the first lid 01 and is also used to cover and protect the contents inside the box.

[0039] The shape and size of the second lid 02 match those of the first lid 01 to ensure that a complete closed structure can be formed in the closed state and a certain accommodation space is formed.

[0040] Connecting structure 03: The connecting structure 03 is the key structure in this embodiment, used to connect the first lid 01 and the second lid 02 so that they can be closed and opened through folding. The specific description is as follows:

[0041] Folding line 04: The folding line 04 is provided on the connecting structure 03 and is the folding line 04 of the first lid 01 and the second lid 02. The existence of the folding line 04 enables the first lid 01 and the second lid 02 to perform a folding movement around the folding line 04. The folding line 04 can be a pre-pressed or formed concave portion, making it easy for the material to bend at this position.

[0042] Protrusion 05 and recess 06: A protrusion 05 and a recess 06 are respectively provided on both sides of the broken line 04. The protrusion 05 and the recess 06 are complementary structures. When the first cover 01 and the second cover 02 are closed, the protrusion 05 is embedded in the recess 06, thus forming a sealed structure.

[0043] Protrusion 05: It can be a part protruding from the surface of the connecting structure 03, and can be strip-shaped, block-shaped or other shapes, as long as it can cooperate with the recess 06.

[0044] Recess 06: It is a recess 06 structure corresponding to the protrusion 05, and can be a groove for accommodating the protrusion 05.

[0045] When the first cover 01 and the second cover 02 are in the open state, they are connected by the connecting structure 03 and can be freely folded. When the packaging box needs to be closed, the first cover 01 and the second cover 02 are folded through the broken line 04 so that they are docked with each other. During the closing process, the protrusion 05 on the first cover 01 will fit with the recess 06 on the second cover 02 and be embedded therein, thus forming a tight sealed structure. This design can not only ensure that the contents of the packaging box are safe and do not leak, but also prevent external pollutants from entering the box.

[0046] In this application, there can be multiple recesses 06 (for example, there can be two or three or more), such as multiple strip-shaped recesses 06 are provided, and the corresponding number and shape-matching protrusions 05, so as to further improve the sealing effect.

[0047] In this application, there is no limitation on the up-and-down setting of the first cover 01 and the second cover 02, that is, the first cover 01 can be the upper cover or the lower cover of the packaging box, and the second cover 02 can also be the upper cover or the lower cover of the packaging box.

[0048] In this embodiment, the design of the protrusion 05 and the recess 06 enables the cover plates to form a tight seal when closed, protecting the items inside the box. Through the setting of the connecting structure 03, the first cover 01 and the second cover 02 can be conveniently folded, simplifying the opening and closing process of the packaging box. The connecting structure 03 does not require additional locks or adhesives, saving materials and costs. Using the connecting structure 03 provided in this application to connect the first cover 01 and the second cover 02 can be conveniently manufactured by an integrated molding method with a single mold, simplifying the production process, reducing the number of molds and production steps, thereby reducing the production cost. The packaging box provided in this application ensures the sealing effect of the packaging box while realizing the flip connection method, and has very good applicability.

[0049] In an alternative embodiment, the first cover 01, the second cover 02 and the connecting structure 03 are integrally formed by a single mold at one time.

[0050] In an alternative embodiment, the first lid 01, the second lid 02, and the connecting structure 03 of the flip-top packaging box are integrally formed by a single mold. This integral molding method ensures a tight connection and consistency between the various parts, thereby enhancing the strength and durability of the packaging box. The mold can include the shapes of the first lid 01 and the second lid 02, while leaving a mold structure for the connecting structure 03 between them. Materials suitable for mold molding, such as plastics, cardboard, or other composite materials, can be used. These materials have sufficient strength and processability. The materials possess good molding characteristics and can be pressed or injection-molded in the mold.

[0051] Refer to Figure 3 , in an alternative embodiment, the recessed portion 06 is hollowed out with an elongated through-hole 07.

[0052] In this embodiment, the recessed portion 06 is hollowed out with an elongated through-hole 07, that is, there is a long strip-shaped opening at the position of the recessed portion 06. The through-hole can be rectangular, oval, or other suitable elongated shapes, and the specific shape can be adjusted according to design requirements.

[0053] The design of the elongated through-hole 07 makes the recessed portion 06 more flexible when being folded. Since the through-hole part reduces the thickness of the material, less force is required for folding. This design provides greater flexibility at the fold line 04 of the connecting structure 03, making it easier for the first lid 01 and the second lid 02 to fold along the fold line 04.

[0054] Refer to Figure 1 and Figure 5 , in an alternative embodiment, a retaining wall 08 is provided at the edge of the first lid 01. Grooves or protrusions are provided on the inner surface of the retaining wall 08, and a flange 09 is provided on the second lid 02. When the first lid 01 and the second lid 02 are closed, the flange 09 of the second lid 02 is snapped into the groove or abuts against the protrusion. In this application, Figure 3 taking the protrusion 10 as an example for illustration.

[0055] In this embodiment, a retaining wall 08 is provided at the edge of the first lid 01. The retaining wall 08 is a border structure erected along the edge of the lid, surrounding the entire perimeter of the lid. The height of the retaining wall 08 can be adjusted as needed to provide sufficient protection and sealing performance. Grooves or protrusions are provided on the inner surface of the retaining wall 08, and these structures are used to cooperate with the flange 09 of the second lid 02.

[0056] Groove: If a groove is provided on the inner surface of the retaining wall 08, then this groove will be used to accommodate the flange 09 on the second lid 02.

[0057] Protrusion: If a protrusion 10 is provided on the inner surface of the enclosure 08, then this protrusion 10 will be used to abut against the flange 09 on the second lid 02.

[0058] For the second lid 02, a flange 09 is provided on the second lid 02. The flange 09 is a strip-shaped structure that protrudes along the edge of the lid. The position and shape of the flange 09 match the groove or protrusion on the first lid 01 to ensure a tight fit when closed.

[0059] The designs of the enclosure 08 and the flange 09 enable the first lid 01 and the second lid 02 to form a tighter sealing structure when closed. The cooperation between the groove and the flange 09 (or the abutment of the protrusion 10 and the flange 09) further enhances the sealing effect, preventing air, moisture, or dust from entering the interior of the packaging box. The enclosure 08 provides additional support and protection, making the overall packaging box more robust. The cooperation between the flange 09 and the groove (or protrusion) when closed increases the anti-deformation ability of the packaging box and improves its durability. The design of the flange 09 and the groove (or protrusion) makes it easier for the user to align and operate when closing and opening the packaging box, improving the convenience of use. This design can avoid misoperation and ensure correct engagement every time it is closed.

[0060] Refer to Figure 6 Furthermore, the inner wall of the first lid 01 is bent outward at the edge to form a first abutting surface 11, and the inner wall of the second lid 02 is bent outward at the edge to form a second abutting surface 12. When the first lid 01 and the second lid 02 are closed, the first abutting surface 11 and the second abutting surface 12 fit closely together.

[0061] In a further embodiment, the designs of the first lid 01 and the second lid 02 are optimized to enhance the tightness of closure and the overall stability of the packaging. Specifically, the inner wall of the first lid 01 is bent outward at the edge to form a first abutting surface 11, and the inner wall of the second lid 02 is bent outward at the edge to form a second abutting surface 12. When the first lid 01 and the second lid 02 are closed, these two abutting surfaces fit closely together. This design not only improves the sealing performance but also enhances the structural strength of the packaging.

[0062] For the first lid 01:

[0063] A border structure 08 is provided at the edge of the first lid 01. The border structure 08 is a frame structure that stands along the edge of the lid, surrounding the entire perimeter of the lid.

[0064] The inner surface of the border structure 08 is provided with a groove or a protrusion for cooperating with the flange 09 on the second lid 02. The inner wall of the first lid 01 is bent outward at the edge to form a first abutting surface 11. The first abutting surface 11 is a flat surface for closely fitting with the second abutting surface 12 of the second lid 02.

[0065] For the second lid 02:

[0066] A flange 09 is provided on the second lid 02, which is a strip-like structure protruding along the edge of the lid and is used to cooperate with the groove or protrusion on the first lid 01. The inner wall of the second lid 02 is bent outward at the edge to form a second abutting surface 12. The second abutting surface 12 corresponds to the first abutting surface 11 of the first lid 01 to ensure tight fit when closed.

[0067] The tight fit between the first abutting surface 11 and the second abutting surface 12 forms an additional sealing layer, further enhancing the sealing effect of the packaging box. This design effectively prevents air, moisture, and dust from entering the interior of the packaging box, protecting the items inside the box. It can also prevent the contents of the packaging box from leaking.

[0068] In this alternative embodiment, by respectively providing the first abutting surface 11 and the second abutting surface 12 that are bent outward at the inner wall edges of the first lid 01 and the second lid 02, and these two abutting surfaces are in surface-to-surface contact and abutment, this embodiment significantly enhances the sealing performance and structural strength of the packaging box. This design fills the gap at the contact between the first lid 01 and the second lid 02, ensuring the sealing effect and being applicable to various high-demand packaging scenarios.

[0069] Based on the structure in this alternative embodiment, the first lid 01 in this application can preferably be the upper lid. When the first lid 01 is the upper lid, the flange 09 of the second lid 02 will be snapped into the enclosure 08 of the first lid 01, that is, the enclosure 08 is on the outside and the flange 09 is on the inside. When closed, the edge of the first lid 01 will cover the edge of the second lid 02.

[0070] Refer to Figure 3 , in an alternative embodiment, inward chamfers 13 are provided on both sides of the connecting structure 03.

[0071] In this embodiment, inward chamfers 13 are provided on both sides of the connecting structure 03. The design of the chamfers 13 makes it easier for the lid to be folded. The chamfer 13 design can effectively prevent the lid from rebounding due to internal stress after folding is completed, ensuring that the box can be stably closed.

[0072] Refer to Figure 1 , in an alternative embodiment, a plurality of reinforcing ribs 14 are provided on the first lid 01 and the second lid 02.

[0073] In this embodiment, the reinforcing ribs 14 can be located on the inner surfaces of the first lid 01 and the second lid 02, and can be along the edges of the box or the supporting parts of the box. They can be distributed around the lid or along the key supporting parts on the inner side of the lid. The reinforcing ribs 14 can be strip-shaped, cylindrical or other shapes, and the specific shapes and sizes can be determined according to the specific design requirements of the packaging box. Their sizes can be considered to provide sufficient supporting force while minimizing the overall weight of the box. The main function of the reinforcing ribs 14 is to enhance the structural strength and stability of the box so that it can better withstand external pressure and impact. Especially during transportation and storage, the reinforcing ribs 14 can effectively prevent the box from deforming or being damaged. The reinforcing ribs 14 can reduce the risk of deformation caused by repeated opening and closing of the box during long-term use and extend its service life. When packaging important items, the reinforcing ribs 14 can effectively prevent the box from collapsing or being damaged under external impact.

[0074] Referring to Figure 6 , in an alternative embodiment, the enclosure 08 is bent outward to form a contact surface 15 for contact.

[0075] In this embodiment, the enclosure 08 is a part of the first lid 01 and can be provided on the edge of the first lid 01 to enhance the structural stability and sealing performance of the box. The main purpose of bending the enclosure 08 outward to form the contact surface 15 is to provide a safe and easy-to-use contact point to prevent the user from directly contacting the possibly sharp edges of the enclosure 08.

[0076] In this embodiment, the contact surface 15 is formed by bending the enclosure 08 outward. This structure does not require additional pasting or fixing structures and is very conducive to one-time molding by a mold.

[0077] To better illustrate the embodiments in the present application, two preferred embodiments are provided below:

[0078] Embodiment 1:

[0079] An embodiment of a flip-top packaging box, which includes:

[0080] A first cover 01, a second cover 02 and a connecting structure 03, wherein the first cover 01 is foldably connected to the second cover 02 through the connecting structure 03. A broken line 04 is provided on the connecting structure 03. A convex portion 05 and a concave portion 06 are respectively provided on both sides of the broken line 04. When the first cover 01 and the second cover 02 are closed to each other, the convex portion 05 is embedded into the concave portion 06 to form a sealing structure. The first cover, the second cover and the connecting structure are integrally formed by a single mold. The concave portion 06 is hollowed out with an elongated through hole 07. Chamfers 13 are provided on both sides of the connecting structure 03 and extend inwards. The concave portion 06 includes three grooves.

[0081] Embodiment Two:

[0082] An embodiment of a flip cover packaging box, which includes:

[0083] A first cover 01, a second cover 02 and a connecting structure 03, wherein the first cover 01 is foldably connected to the second cover 02 through the connecting structure 03. A broken line 04 is provided on the connecting structure 03. A convex portion 05 and a concave portion 06 are respectively provided on both sides of the broken line 04. When the first cover 01 and the second cover 02 are closed to each other, the convex portion 05 is embedded into the concave portion 06 to form a sealing structure. A retaining wall 08 is provided at the edge of the first cover 01. Grooves or protrusions are provided on the inner surface of the retaining wall 08. A flange 09 is provided on the second cover 02. When the first cover 01 and the second cover 02 are closed, the flange 09 of the second cover 02 is snapped into the groove or abuts against the protrusion. The inner wall of the first cover 01 is bent outwards at the edge and forms a first abutting surface 11. The inner wall of the second cover 02 is bent outwards at the edge and forms a second abutting surface 12. When the first cover 01 and the second cover 02 are closed, the first abutting surface 11 and the second abutting surface 12 are closely attached to each other. The retaining wall 08 is bent outwards and forms a contact surface 15 for contact.

[0084] It should be noted that the above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flip-top packaging box, characterized in that, Comprising: A first cover, a second cover and a connecting structure, the first cover is foldably connected to the second cover through the connecting structure, a folding line is provided on the connecting structure, a convex portion and a concave portion are respectively provided on both sides of the folding line, when the first cover and the second cover are closed to each other, the convex portion is embedded into the concave portion to form a sealing structure.

2. The flip-top packaging box according to claim 1, characterized in that, The three parts of the first cover, the second cover and the connecting structure are integrally formed by a single mold.

3. The flip-top packaging box according to claim 1, characterized in that, The concave portion is hollowed out with a long through hole.

4. The flip-top packaging box according to claim 1, wherein Three long concave portions are provided on the connecting structure.

5. The flip-top packaging box according to claim 1, wherein A retaining wall is provided at the edge of the first cover, grooves or protrusions are provided on the inner surface of the retaining wall, a flange is provided on the second cover, when the first cover and the second cover are closed, the flange of the second cover is snapped into the groove or abuts against the protrusion.

6. The flip-top packaging box according to claim 5, characterized in that, The inner wall of the first cover is bent outward at the edge and forms a first abutting surface, the inner wall of the second cover is bent outward at the edge and forms a second abutting surface, when the first cover and the second cover are closed, the first abutting surface and the second abutting surface are closely attached.

7. The flip-top packaging box according to claim 5, wherein The first cover is an upper cover and the second cover is a lower cover.

8. The flip-top packaging box according to any one of claims 1 to 7, characterized in that, Inner cut corners are provided on both sides of the connecting structure.

9. The flip-top packaging box according to any one of claims 1 to 7, characterized in that A plurality of reinforcing ribs are provided on the first cover and the second cover.

10. The flip-top packaging box according to claim 5, characterized in that, The retaining wall is bent outward to form a contact surface for contact.

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