Stacked paper bowl cover

Abstract

This utility model discloses a stackable paper bowl lid, including a paper lid with a rolled edge formed by stamping and folding. A fastening groove is provided on the inner side of the rolled edge. The rolled edge is folded inward along the edge to form an anti-detachment edge. The end of the anti-detachment edge faces the fastening groove, and the anti-detachment edge and the side wall of the fastening groove form a release opening. The release opening is located at the opening of the fastening groove, and the size of the fastening groove is larger than the size of the release opening. The stackable paper bowl lid of this utility model, through its rolled edge inward folding structure and the anti-detachment edge, has significant advantages in terms of fastening firmness, leak-proof performance, and stacking convenience. Its structure is simple, and mass production can be achieved through stamping and folding processes, resulting in low production costs. It is suitable for large-scale application in the fields of takeout and fast food, providing consumers with a more reliable and convenient dining experience.

Description

Technical Field

[0001] This utility model relates to the field of daily necessities technology, specifically to a stacked paper bowl lid. Background Technology

[0002] As people's living standards improve, convenient and quick dining methods have become the mainstream choice, making lunch boxes crucial for enhancing dining convenience. Paper bowls are used as disposable food or beverage containers. They are commonly used in takeout, fast food restaurants, picnics, camping, and other occasions for ease of use and disposal. Paper bowls are typically made of paper pulp and come in different sizes and designs to suit various uses and needs. However, existing paper bowls often use simple paper clips to secure the lid, which are prone to falling off and are not very secure. Utility Model Content

[0003] In view of the prior art, the purpose of this utility model is to provide a paper bowl box lid design that is easy to stack, has good snap-fit ​​and leak-proof performance, and has high connection strength between the paper lid and the box body after snapping.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a stacked paper bowl box lid, including a paper lid, the paper lid having a rolled edge formed by stamping and folding, a fastening groove being provided on the inner side of the rolled edge, the rolled edge being folded inward along the edge to form an anti-detachment edge, the end of the anti-detachment edge being positioned towards the fastening groove, and the anti-detachment edge and the side wall of the fastening groove forming a detachment opening, the detachment opening being positioned at the opening of the fastening groove, and the size of the fastening groove being larger than the size of the detachment opening.

[0005] As a further feature of the above solution, the paper cover is provided with a wavy groove on the inner part of the rolled edge. The wavy groove is located on the outer side opening of the paper cover, and the opening of the wavy groove is opposite to the opening of the buckle groove.

[0006] As a further provision of the above solution, the rolled edge also includes a first folded edge and a second folded edge located on the outer side. The rolled edge is folded inward at the end of the second folded edge to form a third inner folded edge that fits against the second folded edge. The anti-detachment edge is formed by extending from the third inner folded edge.

[0007] As a further feature of the above scheme, the inner diameter of the rolled edge located at the third inner flange matches the outer diameter of the portion of the rolled edge located above the first fold.

[0008] As a further provision of the above solution, the paper cover includes at least circular and square edge structures, and also includes a paper bowl that matches the paper cover. The paper bowl has an outwardly rolled rim, the size of which matches the buckle groove, and the size of which is larger than the release opening. The anti-detachment edge has a raised structure relative to the release opening, and the raised structure is used to prevent the detachment by engaging with the rim after it is engaged with the buckle groove.

[0009] Beneficial Effects: The paper lid structure design of this utility model effectively solves the problems of traditional paper bowl lids being prone to detachment and not securely fastening. When the paper lid is fastened to the paper bowl, the rim of the paper bowl can be squeezed into the fastening groove through the release opening. The anti-detachment edge on the release opening side has an inclined guiding structure, thus providing an elastic widening guiding function when the rim of the bowl is inserted, allowing the rim of the bowl to be smoothly inserted. Conversely, because the internal size of the fastening groove is larger than the size of the release opening, the rim of the bowl will be blocked by the end of the anti-detachment edge after entering the fastening groove, and cannot easily detach from the release opening, significantly improving the connection strength between the paper lid and the box body. At the same time, the raised structure at the end of the anti-detachment edge can further enhance the blocking effect on the rim of the bowl. Even if it is shaken or squeezed during transportation or carrying, the paper lid is not easy to separate from the box body, ensuring the airtightness of food or beverages and reducing the occurrence of leakage.

[0010] For the stacking function, the inner diameter of the rolled edge at the third inner fold matches the outer diameter of the portion of the rolled edge above the first fold. This design allows multiple paper lids to be stably nested and stacked. When multiple paper lids need to be stored or transported, the portion above the first fold of one paper lid can be precisely embedded inside the third inner fold of another paper lid, which not only saves storage space but also prevents the paper lids from tipping over or scattering during stacking, facilitating batch management and use.

[0011] The wavy grooves on the inner part of the paper lid serve to cushion the impact and enhance structural stability. The concave and convex structure of the wavy grooves can disperse the external forces on the paper lid, reducing deformation caused by squeezing or collision. At the same time, it also provides a certain amount of elastic space for the paper lid, allowing it to better fit the shape of the paper bowl when fastened, improving aesthetics and the inner cavity, and further enhancing leak-proof performance.

[0012] Furthermore, the product of this embodiment can be designed with various edge structures such as round and square to fit different shaped paper bowls and meet diverse usage needs. Whether it is rice, soup or other food, it can ensure a good snap-fit ​​effect.

[0013] The stackable paper bowl lid of this utility model has significant advantages in terms of fastening firmness, leak-proof performance and stacking convenience. Its structure is simple and can be mass-produced through processes such as stamping and folding, resulting in low production costs. It is suitable for large-scale application in the fields of takeout and fast food, providing consumers with a more reliable and convenient dining experience. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the paper lid and paper bowl combination of this utility model.

[0015] Figure 2 This is a schematic diagram showing the paper lid and paper bowl in use according to this embodiment.

[0016] Figure 3This is a cross-sectional view of the paper bowl box in this embodiment.

[0017] Figure 4 for Figure 3 Enlarged view of the connection structure between the paper lid and the paper bowl.

[0018] Figure 5 This is a schematic diagram of the stacked structure in this embodiment.

[0019] Figure 6 This is a cross-sectional schematic diagram of the paper cover stacking state in this embodiment.

[0020] Attached reference numerals: 1. Paper cover; 11. Fastening groove; 12. Rolled edge; 121. First folded edge; 122. Second folded edge; 123. Third inward folded edge; 124. Anti-detachment edge; 125. Detachment opening; 13. Corrugated groove; 2. Paper bowl; 21. Bowl rim. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other.

[0022] like Figure 1-6 The illustrated stacked paper bowl lid includes a paper lid 1. The paper lid 1 is provided with a rolled edge 12 by stamping and folding. A fastening groove 11 is provided on the inner side of the rolled edge 12. The rolled edge 12 is folded inward along the edge to provide an anti-detachment edge 124. The end of the anti-detachment edge 124 is set towards the fastening groove 11, and the anti-detachment edge 124 and the side wall of the fastening groove 11 form a release opening 125. The release opening 125 is set at the opening of the fastening groove 11, and the size of the fastening groove 11 is larger than the size of the release opening 125.

[0023] As a further provision of the above solution, the paper cover 1 is provided with a groove 13 on the inner part of the rolled edge 12. The groove 13 is located on the outer side opening of the paper cover 1, and the opening of the groove 13 is opposite to the opening of the buckle groove 11.

[0024] As a further provision of the above scheme, the rolled edge 12 also includes a first folded edge 121 and a second folded edge 122 located on the outer side. The rolled edge 12 is folded inward at the end of the second folded edge 122 to form a third inner folded edge 123 that fits against the second folded edge 122. The anti-detachment edge 124 is formed by extending from the third inner folded edge 123.

[0025] As a further feature of the above scheme, the inner diameter of the rolled edge 12 located at the third inner flange 123 matches the outer diameter of the portion of the rolled edge 12 located above the first folded edge 121.

[0026] As a further provision of the above solution, the paper cover 1 includes at least circular and square edge structures, and also includes a paper bowl 2 that matches the paper cover 1. The paper bowl 2 has an outwardly rolled bowl edge 21. The size of the bowl edge 21 matches the buckle groove 11, and the size of the bowl edge 21 is larger than the release opening 125. The anti-detachment edge 124 has a raised structure in the direction relative to the release opening 125. The raised structure is used to prevent the bowl edge 21 from detaching after it is inserted into the buckle groove 11.

[0027] As mentioned above, in the actual production process of the product of this utility model, the manufacturing process of the stacked paper bowl lid in this embodiment can be completed by automated stamping equipment: First, the food-grade cardboard roll is fed into the stamping machine, and the basic shape of the paper cover is formed in one step by the mold, including the central flat cover and the pre-folded edges; Then, the edge is folded upward along the pre-fold line using a folding mold to form the first fold 121, and then folded again to form the second fold 122. Next, the end of the second fold 122 is rolled inward and attached to form the third inner fold 123 and the extended anti-detachment edge 124. At this time, the space of the snap groove 11 and the size of the detachment opening 125 are also formed simultaneously. Finally, the wavy groove mold is used to press an annular or square wavy groove 13 into the cover part inside the rolled edge 12 to complete the processing of the entire paper cover 1.

[0028] The matching paper bowl 2 has its rim 21 made using the same stamping and rolling process to ensure that the size is precisely matched with the groove 11 of the paper lid 1.

[0029] In usage scenarios, such as during food delivery, staff can align the rim 21 of the paper bowl 2 containing the food with the release opening 125 of the paper cover 1 and gently press the edge of the paper cover 1. The rim 21 will squeeze the raised structure of the anti-detachment edge 124, causing it to undergo slight elastic deformation and smoothly slide into the slot 11. After being released, the raised structure of the anti-detachment edge 124 returns to its original position and tightly abuts against the outside of the bowl rim 21. Even if the food container is bumped or inverted, the bowl rim 21 will not fall off because it cannot pass through the smaller detachment opening 125, effectively preventing soup or sauce from leaking out.

[0030] When it is necessary to store paper covers 1 in bulk, simply align the upper part of the first folded edge 121 of one paper cover 1 with the inner side of the third inner folded edge 123 of another paper cover 1 and press it down vertically to complete the nested stacking. The height of each stack of 100 paper covers 1 is only about 1.2 times the height of a single paper cover 1, which greatly saves warehouse storage space and transportation costs.

[0031] Compared to traditional paper bowl lids with snap-on clips, this invention significantly improves the fastening strength. The raised anti-detachment edge 124 makes it less likely for the inserted bowl rim 21 to come loose. Even after repeated opening and closing, the anti-detachment edge 124 maintains relatively stable elasticity. Simultaneously, the design of the wavy groove 13 not only enhances the overall aesthetics and expands the internal space of the bowl, but also strengthens the overall resistance to deformation of the paper lid 1, preventing food deformation due to compression to some extent. Furthermore, all structures are integrally molded from food-grade cardboard, eliminating the need for additional plastic clips or adhesives, meeting environmental and biodegradable requirements. After use, it can be recycled along with the paper bowl 2, reducing white pollution.

[0032] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A stacked paper bowl lid, comprising a paper lid (1), characterized in that: The paper cover (1) is provided with a rolled edge (12) by stamping and folding. A fastening groove (11) is provided on the inner side of the rolled edge (12). The rolled edge (12) is folded inward along the edge to provide an anti-detachment edge (124). The end of the anti-detachment edge (124) is set towards the fastening groove (11), and the anti-detachment edge (124) and the side wall of the fastening groove (11) form a release opening (125). The release opening (125) is set at the opening of the fastening groove (11), and the size of the fastening groove (11) is larger than the size of the release opening (125).

2. The stacked paper bowl lid according to claim 1, characterized in that: The paper cover (1) is also provided with a wavy groove (13) on the inner part of the rolled edge (12). The wavy groove (13) is located on the outer side opening of the paper cover (1), and the opening of the wavy groove (13) is opposite to the opening of the buckle groove (11).

3. The stacked paper bowl lid according to claim 1, characterized in that: The rolled edge (12) also includes a first folded edge (121) and a second folded edge (122) located on the outside. The rolled edge (12) is folded inward at the end of the second folded edge (122) to form a third inner folded edge (123) that fits with the second folded edge (122). The anti-detachment edge (124) is formed by extending the third inner folded edge (123).

4. The stacked paper bowl lid according to claim 1, characterized in that: The inner diameter of the rolled edge (12) located at the third inner flange (123) matches the outer diameter of the portion of the rolled edge (12) above the first fold (121).

5. A stacked paper bowl lid according to claim 1, characterized in that: The paper cover (1) includes at least circular and square edge structures, and also includes a paper bowl (2) that matches the paper cover (1). The paper bowl (2) has an outwardly rolled rim (21). The size of the rim (21) matches the groove (11), and the size of the rim (21) is larger than the release opening (125).

6. A stacked paper bowl lid according to claim 5, characterized in that: The anti-detachment edge (124) is provided with a raised structure in the direction of the detachment opening (125), and the raised structure is used to form an anti-detachment abutment against the bowl edge (21) after it is inserted into the buckle groove (11).

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