A milk box

Abstract

The utility model discloses a milk box belongs to packaging container technical field. It solved the current instant drinking type milk packaging discernibility low, the problem of single drinking mode and poor splashproof performance. The present milk box includes square box body and roof -like box cover, and two detachable connections. The box cover top has the inclined side, and at least two adjacent straw holes are formed on it. The straw hole place all protrude the ring -like portion with the closing tendency to the box cover inside, and the ring -like portion has the vertical setting upper ring face and the vertical inclined side setting lower ring face, and the smooth transition and its surround centerline are acute angle intersection. The structure is in the reservation classic milk packaging high discernibility, and is suitable for direct drinking and straw drinking, and can also effectively prevent splash through the closing flat channel of ring -like portion, especially suitable for carrying, shaking and other instant drinking scene.

Description

Technical Field

[0001] This utility model belongs to the field of packaging container technology and relates to a milk carton. Background Technology

[0002] Currently, commercially available ready-to-drink liquid beverages (such as fresh milk and soy milk) are mainly packaged in two types of containers. The first type is highly recognizable large-capacity family-sized packaging, such as square-shaped milk cartons, gable-top milk cartons, and bucket-shaped milk cartons. These cartons typically have a capacity of around one liter, and their unique shape has established a strong association with "fresh milk," making them highly recognizable. People immediately associate them with milk. Gable-top milk cartons, in particular, are primarily used for storing fresh milk. Their sloping roof-like top has a pouring spout, allowing for smooth pouring without requiring a large tilt angle. Their design is intended for family storage and serving, not for individual consumption. Consumers need to pour the contents into a cup to drink, which is extremely inconvenient in ready-to-drink scenarios such as outdoors or during commutes.

[0003] The second type is the common disposable beverage cup widely used in breakfast shops, milk tea shops, and coffee shops, such as milk tea cups and soy milk cups. These beverages are basically sold by pouring the liquid from the first type of container into a disposable box or cup, and they often come with a lid and straw for easy carrying and drinking, suitable for ready-to-drink scenarios. However, these disposable cups or boxes are not currently specially customized for holding milk; their designs are all the same, failing to reflect the characteristics of the beverages they hold (especially fresh milk), resulting in low recognizability. The straw hole on the lid is usually a simple straight hole with a weak splash-proof structure. When hot drinks are poured in and a straw is inserted, if used in a shaking environment such as while walking or riding in a vehicle, the liquid easily spills out through the gap between the straw and the hole wall, resulting in a poor user experience.

[0004] In summary, the existing technology lacks a small-capacity ready-to-drink milk packaging container that can maintain the unique and highly recognizable fresh milk packaging, perfectly adapt to various drinking methods such as direct drinking and straw drinking, and effectively prevent splashing when shaken during transport. Utility Model Content

[0005] In view of the shortcomings of existing technology, this utility model provides a milk carton to solve the technical problem of how to maintain the high recognizability of fresh milk packaging while being suitable for various drinking scenarios, and effectively preventing splashing when carried or shaken.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A milk carton includes a carton body and a carton lid, which are detachably connected. The carton body (1) has a square outline, the carton lid has a roof-shaped outline and a sloping side at the top, and at least two adjacent straw holes are provided on the sloping side. Each straw hole has an annular portion protruding towards the inside of the carton lid with a tapering tendency. The annular portion has an upper annular surface and a lower annular surface on the side facing the center line of the straw hole. The upper annular surface is vertically oriented, and the lower annular surface is perpendicular to the sloping side. The upper annular surface and the lower annular surface are connected and smoothly transitioned. The center line of the upper annular surface intersects the center line of the lower annular surface at an acute angle.

[0007] This milk carton consists of a body and a lid. The body has a square outline, and the lid has a roof-shaped outline. This design is inspired by the distinctive designs of large-capacity disposable milk cartons on the market, which enhances the overall recognizability. Further color design can be incorporated to further improve the overall recognizability.

[0008] This milk carton has a straw hole on the lid for inserting a straw. Because the straw hole is located on the slanted side of the lid, it can also be used as a drinking spout. The slanted side reduces the tilting angle when drinking, allowing for direct drinking and adapting to both drinking methods.

[0009] The straw hole of this milk carton has an inwardly protruding ring-shaped part, which effectively prevents milk from splashing out of the straw hole. In particular, the upper and lower parts of the ring-shaped part have different structures: the upper ring surface is vertical, and the lower ring surface is perpendicular to the oblique side. The center lines of the two intersect at an acute angle. The entire ring-shaped part gradually tapers inward and protrudes inward, and the opening is flat, which provides better splash prevention. Moreover, the upper and lower ring surfaces can better guide the inserted straw, allowing the insertion angle of the straw to be controlled and making it difficult for the straw to fall out during use. All of these designs are more conducive to use in some shaking scenarios, such as walking or riding in a vehicle.

[0010] This milk carton has at least one straw hole for receiving a thick straw, and at least one straw hole for receiving a thin straw.

[0011] The lid of this milk carton is designed with multiple straw insertion holes. The coarse straw hole is better suited for the insertion, guidance, and restriction of coarse straws, while the fine straw hole is better suited for the insertion, guidance, and restriction of three-dimensional straws. This hole design is compatible with the two most common types of straws on the market, further improving its adaptability.

[0012] The milk carton has at least two rows of straw holes on its oblique side.

[0013] This milk carton also includes a sealing plug, which has a sealing portion corresponding to the number of straw holes, and adjacent sealing portions are softly connected.

[0014] This milk carton features a wide straw hole and a narrow straw hole arranged side by side, along with a sealing plug. The sealing plug has two corresponding sealing parts that are flexibly connected together. When not in use, the two sealing parts seal the two straw holes respectively. When drinking, one straw hole can be opened as needed, and the sealing plug can be connected to the lid through the other sealing part. Subsequently, the straw holes can be opened or closed as needed, making it suitable for a variety of applications.

[0015] In this milk carton, each sealing part is conformally adapted to the minimum inner diameter of the annular part at the corresponding straw hole, in order to cover the opening of the annular part.

[0016] The sealing part of this milk carton is positioned at the opening of the innermost annular part of the straw hole for proper sealing. This differs from conventional sealing methods, which, after sealing the straw hole, result in a relatively closed interior of the milk carton. The presence of hot milk inside can lead to increased internal pressure and a risk of splashing. In contrast, the sealing part of this application extends into the inside of the lid, effectively blocking the milk from overflowing from the straw hole. While the sealing effect is not as strong, it ensures consistent internal and external pressure, making it safer and more practical.

[0017] In this milk carton, the outer side of the sealing part has a mating surface that fits against the lower ring surface, and when the mating surface fits against the lower ring surface, an anti-adsorption gap is formed between the outer side of the sealing part and the upper ring surface.

[0018] The mating surface of the sealing part of this milk carton fits into the lower ring surface, and its lower side is stressed to be stably connected to the lid. There is a gap between the upper side of the sealing part and the upper ring surface, which is an anti-adsorption gap, so that the inside of the carton can be ventilated with the outside, and the sealing plug is not difficult to remove because it is circumferentially stuck to the straw hole.

[0019] The milk carton gradually expands from bottom to top, and has one-piece molded edges at all four corners on the inside of the carton to reinforce the structure and prevent stacking and adsorption.

[0020] The bottom surface of the lid of this milk carton has an annular groove along its circumference. The bottom of the lid is divided into an outer stop and an inner stop by the groove. The top of the carton body has a snap-fit ​​part that fits into the groove. The outer side of the snap-fit ​​part has a protruding edge. When the snap-fit ​​part is snapped into the groove, the outer stop abuts against the edge.

[0021] The milk carton has a groove on the inner side of the outer side panel, and a sealing strip that fits the groove protrudes from the outer side of the snap-fit ​​part.

[0022] The top of the lid of this milk carton protrudes upwards with a vertical beam, and a round hole is provided on the vertical beam for hanging decorations and carrying ropes.

[0023] The beneficial effects of this utility model are: 1. High recognizability: The overall design adopts the classic milk carton shape of "square box body" and "roof-shaped box lid", which forms a consistent visual identity with the mainstream fresh milk packaging on the market. Consumers can recognize it as a milk beverage without any additional explanation.

[0024] 2. Diverse drinking methods and good adaptability: The straw hole is located on the sloping side, which can be used to drink directly with a straw or as a drinking spout. The sloping surface naturally reduces the pouring angle when drinking, achieving an elegant and smooth direct drinking experience. Different diameter straw holes (such as coarse and fine straw holes) can also be provided to accommodate different types of straws commonly found on the market and meet the preferences of different users.

[0025] 3. Excellent splash and leak prevention performance, especially suitable for carrying: The unique annular structure inside the straw hole has a vertical upper ring surface and a vertically inclined lower ring surface, forming an asymmetrical, flattened channel. This structure effectively restricts the sloshing path of the liquid inside the box, significantly reducing the risk of splashing out of the straw hole. At the same time, the sealing plug extends into the inside of the annular part to block rather than completely seal the opening, and also has an anti-adsorption gap, effectively solving the vacuum adsorption problem that easily occurs when removing hard plastic sealing plugs, achieving easy insertion and removal, improving user experience and durability. While preventing liquid from overflowing, it also maintains the balance of internal and external air pressure, preventing hot drinks from splashing due to increased internal pressure.

[0026] 4. Sturdy structure and convenient use: The box body adopts a gradually expanding design and has built-in reinforced edges, which improves the overall structural strength and effectively prevents the boxes from adhering to each other when stacked; the lid and the box body fit tightly through slots and snap-fit ​​parts, ensuring a firm connection and good sealing; the vertical beam and round hole on the top of the lid provide additional gripping points and hanging functions, improving portability and user experience. Attached Figure Description

[0027] Figure 1 This is a three-dimensional schematic diagram of the overall structure of Embodiment 1 of this utility model; Figure 2 This is a cross-sectional view of the present invention, wherein the circled part is a partial enlarged view of the structure in which the annular part at the straw hole and the sealing plug fit together; Figure 3 This is a three-dimensional structural diagram of the sealing plug used in Embodiment 1 of this utility model; Figure 4 This is a three-dimensional structural diagram of the box body according to Embodiment 1 of this utility model; Figure 5 This is a schematic diagram of the box lid according to Embodiment 1 of this utility model; Figure 6This is a schematic diagram of the box lid according to Embodiment 1 of this utility model from another angle. In the figure: 1. Box body; 11. Edge; 12. Snap-fit ​​part; 13. Edge; 14. Sealing strip; 2. Box lid; 21. Slanted side; 22. Straw hole; 23. Annular part; 231. Upper annular surface; 232. Lower annular surface; 24. Vertical beam part; 25. Round hole; 26. Slot; 27. Outer stop part; 28. Inner stop part; 3. Sealing plug; 31. Sealing part; 311. Mating surface; 4. Anti-adsorption gap. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present utility model.

[0029] Example 1: As Figures 1 to 6 As shown, this embodiment provides a milk carton, which is particularly suitable for holding approximately 350ml of fresh milk ready-to-drink products. The milk carton consists of a carton body 1, a carton lid 2, and a sealing plug 3.

[0030] like Figure 4 As shown: Box body 1 is generally a square truncated pyramid (gradually expanding shape) that is wider at the top and narrower at the bottom, and is injection molded from food-grade plastic (such as PP or PET). Its specific dimensions are: approximately 110mm in height, approximately 54.67mm on the side of the bottom square, and approximately 61.9mm on the side of the top square. This design facilitates demolding, and the smaller bottom size provides a more stable grip. The four corners on the inner side of box body 1 are integrally molded with inwardly protruding ridges 11. These ridges 11 serve two purposes: firstly, they act as reinforcing ribs, significantly enhancing the compressive strength of the bottom and side walls of the box; secondly, when multiple empty boxes are stacked, the ridges 11 effectively disrupt the vacuum adhesion effect between the box walls, making them easier to separate.

[0031] like Figure 5 , Figure 6 As shown, the lid 2 has a roof-shaped profile and is made of the same material as the box body 1. Its bottom outer contour has a maximum dimension of approximately 64.25 mm, slightly larger than the top of the box body 1, to facilitate a snap-fit. A ring-shaped groove 26 is formed around the bottom surface of the lid 2. This groove 26 divides the bottom edge of the lid 2 into an outer retaining portion 27 and an inner retaining portion 28; correspondingly, as... Figure 4 As shown, the top edge of the box body 1 extends outward to form a snap-fit ​​portion 12 that matches the shape of the card slot 26. A retaining edge 13 protrudes downward from the outer side of the snap-fit ​​portion 12.

[0032] During assembly, align the slot 26 of the lid 2 with the latching part 12 of the body 1 and press down until the latching part 12 is fully engaged in the slot 26. At this time, the inner side of the outer stop 27 of the lid 2 will tightly abut against the edge 13 of the body 1 (e.g., Figure 2 As shown), this forms an axial limit to prevent the lid 2 from easily coming loose.

[0033] To further improve sealing and connection strength, this embodiment provides an annular groove (not separately labeled in the figure) on the inner sidewall of the outer stop 27, and a corresponding annular sealing strip 14 is provided on the outer sidewall of the snap-fit ​​part 12 of the box body 1. When the two are engaged, the sealing strip 14 is embedded in the groove, forming a radial tight fit and seal.

[0034] The top center of the lid 2 protrudes upward to form a vertical beam 24. This design serves as both a component of the roof shape and a convenient way for users to pinch and open the lid. A circular hole 25 is provided on the vertical beam 24 for hanging decorations or carrying ropes.

[0035] One of the inclined sides of the lid 2 is defined as inclined side 21. For example... Figure 1 , Figure 5 , Figure 6 As shown, on the oblique side 21 of this embodiment, two straw holes 22 are provided side by side: one is a coarse straw hole with a larger diameter, which is used to fit a regular milk tea straw; the other is a fine straw hole with a smaller diameter, which is used to fit a thin straw such as a three-piece straw.

[0036] Each straw hole 22 has an integrally formed annular portion 23 protruding into the box on its inner side. For example... Figure 2 As shown in the enlarged view, the cross-section of the annular portion 23 is not circular, but rather a flattened oval with a narrow opening. The side facing the centerline of the straw hole 22 is composed of two distinct surfaces: the upper annular surface 231, a roughly vertical (parallel to the central axis of the box) arc-shaped concave surface; and the lower annular surface 232, a roughly perpendicular arc-shaped concave surface to the oblique side 21. The upper annular surface 231 and the lower annular surface 232 are smoothly connected, and their centerlines (which can be understood as the axes of symmetry of their respective curved surfaces) intersect at an acute angle (e.g., 30° to 60°). This unique structure makes the channel entrance of the annular portion 23 wide and shallow, gradually narrowing and becoming elongated inwards. Its technical effects are: first, it provides a natural guiding and limiting effect on the inserted straw, making it less prone to shaking or falling out; second, the elongated, narrowed shape effectively suppresses the "surge" generated when the liquid inside the box shakes horizontally, significantly reducing the possibility of liquid splashing out of the straw hole.

[0037] like Figure 3 As shown, the sealing plug 3 is made of the same material as the box body 1 through injection molding. It has two independent sealing parts 31, which are connected by an integrally molded flexible connecting strip (not separately labeled in the figure).

[0038] The shape of each sealing part 31 is conformally adapted to the inner contour of the annular part 23 at its narrowest point, corresponding to the straw hole 22. For example... Figure 2 As shown, when the sealing plug 3 is inserted, the sealing part 31 does not remain at the port of the straw hole 22, but extends deep into the inside of the lid until its end reaches the minimum inner diameter opening of the annular part 23, thus blocking this opening. Specifically, the outer surface of the sealing part 31 is designed with a mating surface 311 that perfectly matches the shape of the lower annular surface 232 of the annular part 23. When the sealing plug 3 is fully inserted, the mating surface 311 and the lower annular surface 232 fit tightly together, thereby securing the sealing plug 3 to the straw hole 22. At the same time, the top of the sealing part 31 and the upper annular surface 231 of the annular part 23 are not designed to fit tightly together, but a narrow, structural anti-adsorption gap 4 is intentionally retained. When the user needs to remove the sealing plug 3, outside air can quickly enter the sealed space that may be formed between the sealing part 31 and the annular part 23 through this gap, thereby effectively breaking the local vacuum adsorption effect that may be caused by the tight fit of the hard plastic. This allows users to easily and effortlessly remove the sealing plug 3, even when made of hard plastic, greatly improving ease of use. At the same time, this gap provides a pressure equalization channel between the inside and outside of the box, avoiding the potential risk of internal pressure buildup when drinking hot beverages.

[0039] In terms of usage, it can be stored in a sealed container: Insert the two sealing parts 31 into the two straw holes 22 respectively, and the sealing plug 3 is connected to the lid 2 via a connecting strap, making it less likely to be lost. It can be drunk with a straw: According to preference, simply pull out the sealing part 31 of the corresponding straw hole and insert a straw of the appropriate size; the other hole will remain sealed. It can be drunk directly: The sealing plug 3 can be completely removed, and either straw hole can be placed to the lip, using the angled side 21 to pour directly for drinking. It is convenient to carry: In situations involving movement such as walking or riding in a vehicle, even with a straw inserted, the anti-splash structure of the annular part 23 and the inner sealing design of the sealing plug 3 work together to effectively prevent liquid spillage.

[0040] Example 2: In another embodiment, to meet more diverse consumer demands, three straw holes 22 can be provided on the inclined side 21, including two coarse straw holes and one fine straw hole, to facilitate sharing among multiple people or provide more drinking options. Correspondingly, the number of sealing parts 31 of the sealing plug 3 also becomes three, and they are integrally connected by a connecting strip. The basic structure and connection method of its annular part 23, box body 1, and box lid 2 are the same as in Embodiment 1.

[0041] Working principle overview: This invention addresses the issue of recognizability through classic design elements (square box body and roof lid); it solves the problem of limited drinking methods by providing multi-functional straw holes on the slanted side; it addresses the issue of splash prevention through an innovative asymmetrical annular closure structure; and it solves the problem of sealing and pressure balance through an inner shielding sealing plug. These multiple functions combined create a milk packaging solution that still provides a good experience in complex ready-to-drink scenarios.

[0042] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0043] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. At the same time, the basic principles, main features, and advantages of this utility model have been shown and described above, which should be understood by those skilled in the art.

Claims

1. A milk carton, comprising a carton body (1) and a carton lid (2), wherein the two are detachably connected, characterized in that, The box body (1) has a square outline, the box lid (2) has a roof-shaped outline, and the top has a sloping side (21). At least two adjacent straw holes (22) are provided on the sloping side (21). Each straw hole (22) has a ring-shaped part (23) protruding towards the inside of the box lid (2) with a tapering tendency. The ring-shaped part (23) has an upper ring surface (231) and a lower ring surface (232) on the side facing the center line of the straw hole (22). The upper ring surface (231) is vertically oriented, and the lower ring surface (232) is perpendicular to the sloping side (21). The upper ring surface (231) and the lower ring surface (232) are connected and smoothly transitioned. The center line of the upper ring surface (231) and the center line of the lower ring surface (232) intersect at an acute angle.

2. A milk carton according to claim 1, characterized in that, At least one of the straw holes (22) is a coarse straw hole, and at least one of the straw holes (22) is a fine straw hole.

3. A milk carton according to claim 2, characterized in that, The straw holes (22) are arranged in a row on the oblique side (21).

4. A milk carton according to claim 3, characterized in that, It also includes a sealing plug (3), which has a sealing part (31) corresponding to the number of straw holes (22), and adjacent sealing parts (31) are softly connected.

5. A milk carton according to claim 4, characterized in that, The sealing part (31) is conformally adapted to the minimum inner diameter of the annular part (23) to block the opening of the annular part (23).

6. A milk carton according to claim 5, characterized in that, The outer side of the sealing part (31) has a mating surface (311) that fits with the lower ring surface (232), and when the mating surface (311) fits with the lower ring surface (232), an anti-adsorption gap (4) is formed between the outer side of the sealing part (31) and the upper ring surface (231).

7. A milk carton according to claim 1, characterized in that, The box body (1) gradually expands from bottom to top, and there are four corner edges (11) on the inside of the box body (1) to strengthen the structure and prevent stacking and adsorption.

8. A milk carton according to claim 1 or 7, characterized in that, The bottom surface of the box cover (2) is provided with an annular groove (26) along its circumference. The bottom of the box cover (2) is divided by the groove (26) to form an outer stop (27) and an inner stop (28). The top of the box body (1) has a snap-fit ​​part (12) that is adapted to the groove (26). The outer side of the snap-fit ​​part (12) has a retaining edge (13). When snapped, the outer stop (27) abuts against the retaining edge (13).

9. A milk carton according to claim 8, characterized in that, The outer stop (27) has a groove on its inner side, and the snap-fit ​​part (12) has a sealing strip (14) protruding from its outer side that is adapted to the groove.

10. A milk carton according to claim 9, characterized in that, The top of the lid (2) protrudes upwards from a vertical beam (24), and a round hole (25) is provided on the vertical beam (24).

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