Low-temperature blueberry yoghourt plastic cup with side leakage prevention reinforcing rib

Abstract

The utility model discloses a kind of low-temperature blueberry yoghurt plastic cups with anti-side leakage reinforcing rib, belong to food packaging container technical field.The plastic cup includes cup body, cup mouth and cup bottom, cup body side wall is equipped with helical distribution reinforcing rib, cup mouth is equipped with outward flanging flange and integrally-formed annular sealing lip.The upper end of helical reinforcing rib extends to below flange and is connected with it smoothly transition, forms the radial reinforcing structure of support flange and sealing lip.The utility model effectively improves the deformation resistance and sealing reliability of cup body by the organic combination of reinforcing rib and sealing structure, especially suitable for the packaging of low-temperature blueberry yoghurt.It has the advantages of novel structure, good leakage prevention effect, low production cost and the like.

Description

Technical Field

[0001] This utility model relates to the field of food packaging container technology, specifically to a low-temperature blueberry yogurt plastic cup with anti-leakage reinforcing ribs. Background Technology

[0002] Low-temperature blueberry yogurt is a popular dairy product, typically packaged in plastic cups. In existing technologies, to reduce production costs, the walls of plastic cups are often designed to be thin. This thin-walled design makes the cup prone to deformation during transportation, refrigeration, and stacking, leading to poor sealing at the rim or even cup breakage and subsequent leakage. This is especially problematic for yogurt products containing blueberry pieces, which are more likely to seep through the deformation gaps, severely impacting the product's hygiene and appearance. While some existing technologies enhance cup strength by adding simple reinforcing ribs or increasing wall thickness, these methods often struggle to balance leak prevention with cost control. For example, some designs only increase cup rigidity with longitudinal or transverse reinforcing ribs, but provide insufficient support for the critical sealing area at the rim, failing to effectively prevent seal failure due to rim deformation. Other designs using additional sealing rings increase assembly processes and material costs, hindering large-scale production applications. Therefore, there is an urgent need in this field for a plastic cup with an innovative structure that can significantly improve resistance to deformation and sealing reliability while maintaining thin walls and lightweight design, and is especially suitable for packaging low-temperature yogurt products containing fruit pieces. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a low-temperature blueberry yogurt plastic cup with anti-leakage reinforcing ribs. Through an innovative and functionally synergistic integrated structural design, it solves the two interrelated technical problems of easy deformation of the cup body and easy leakage of the cup mouth while maintaining the thin wall of the cup body.

[0004] To achieve the above technical objectives, the following technical solution is adopted: A low-temperature blueberry yogurt cup with anti-leakage reinforcing ribs includes a cup body, a cup mouth, and a cup bottom; the side wall of the cup body is provided with spiral reinforcing ribs; the cup mouth is provided with an outwardly turned flange, and the flange is provided with an integrally formed annular sealing lip in the circumferential direction; the upper end of the spiral reinforcing rib extends to the lower part of the flange of the cup mouth and smoothly transitions with the structure of the flange to form a radial reinforcing structure for supporting the flange and the annular sealing lip.

[0005] Furthermore, the helix angle of the spiral reinforcing rib is 30-60 degrees.

[0006] Furthermore, the distribution density of the spiral reinforcing ribs gradually increases from the cup rim to the cup bottom.

[0007] Furthermore, the cross-section of the spiral reinforcing rib is arc-shaped, with a depth of 0.3-0.8 mm and a width of 0.5-1.5 mm.

[0008] Furthermore, the annular sealing lip is integrally injection molded from the same polypropylene material as the cup body, with its free end inclined towards the center of the cup to form a line contact sealing part.

[0009] Furthermore, the inner circumferential side of the annular sealing lip is provided with several discontinuous, hemispherical micro-protrusions.

[0010] Furthermore, the inner bottom surface of the cup is provided with a downwardly protruding fruit-receiving groove, and the groove wall of the fruit-receiving groove is connected to the cup bottom by radially distributed ribs.

[0011] Furthermore, the lower end of the spiral reinforcing rib extends to the bottom of the cup and intersects or connects with the rib plate.

[0012] This utility model provides a low-temperature blueberry yogurt cup with anti-leakage reinforcing ribs. Compared with the prior art, the beneficial effects of this utility model are: 1. By organically combining the spiral reinforcing ribs with the cup mouth sealing structure, a structural anti-leakage function is achieved, breaking through the limitations of traditional methods that rely solely on sealing materials; the spiral reinforcing ribs can evenly distribute stress, effectively resist torsional deformation and lateral pressure, and significantly improve the overall rigidity of the thin-walled cup body; the reinforcing ribs directly support the cup mouth sealing structure, ensuring that the sealing lip maintains a stable shape under external pressure, and preventing sealing failure due to deformation.

[0013] 2. The one-piece molded sealing lip eliminates the need for additional sealing ring installation, making it suitable for large-scale injection molding production and reducing manufacturing costs.

[0014] 3. The specially designed fruit particle container effectively manages the distribution of fruit particles, reducing the impact on the seal, and is especially suitable for yogurt products containing fruit particles.

[0015] 4. The spiral reinforcing ribs provide a good non-slip grip and create a unique visual effect, enhancing the product's quality. Attached Figure Description

[0016] The present invention will now be described in conjunction with the accompanying drawings.

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0019] Figure 3 yes Figure 2 An enlarged schematic diagram of the sealing structure at point A of the cup.

[0020] Figure 4 This is a top view of the cup opening structure in this utility model.

[0021] Figure 5 This is a bottom view of the cup bottom structure in this utility model.

[0022] In the diagram: 1-Cup body; 2-Cup mouth; 3-Cup bottom; 31-Particle receiving groove; 32-Rib plate; 4-Spiral reinforcing rib; 51-Flange; 52-Annular sealing lip; 53-Micro-protrusion; 54-Line contact sealing part. Detailed Implementation

[0023] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. The described embodiments are merely some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] like Figures 1 to 5 As shown, the present invention discloses a low-temperature blueberry yogurt cup with anti-leakage reinforcing ribs, comprising a cup body 1, a cup mouth 2, and a cup bottom 3. The cup body 1 is injection molded from polypropylene material, with a wall thickness of 0.4-0.6mm, and has good low-temperature toughness.

[0025] The side wall of the cup body 1 is provided with spirally distributed reinforcing ribs 4. For example... Figure 1 As shown, the helix angle of the spiral reinforcing rib 4 is preferably 45 degrees, but can be adjusted within the range of 30-60 degrees in actual production. The distribution density of the spiral reinforcing rib 4 gradually increases from the cup mouth 2 to the cup bottom 3 to cope with the greater pressure at the bottom. Figure 2 As shown, the cross-section of the reinforcing rib 4 is arc-shaped, with a depth of 0.5 mm and a width of 1.0 mm. In actual production, the depth can be adjusted within the range of 0.3-0.8 mm and the width can be adjusted within the range of 0.5-1.5 mm.

[0026] The cup mouth 2 has an outwardly flange 51, and the flange 51 has an integrally formed annular sealing lip 52 circumferentially. For example... Figure 3-4As shown, the free end of the annular sealing lip 52 is inclined towards the center of the cup, forming a line contact sealing part 54. When mated with the cap, the line contact sealing part 54 can achieve a tight linear seal, effectively preventing liquid from overflowing along the cup opening. The inner circumferential side of the annular sealing lip 52 is provided with multiple discontinuous, hemispherical micro-protrusions 53. These micro-protrusions 53 undergo localized elastic deformation when the cap is pressed together, creating multi-point contact pressure, further enhancing the reliability and tolerance of the seal. Even with slight deformation of the cup or slight tilting of the cap, a good sealing effect can still be maintained. The height of the micro-protrusions 53 is 0.3 mm, which can be adjusted within the range of 0.2-0.5 mm in actual production.

[0027] The upper end of the spiral reinforcing rib 4 extends below the flange 51 of the cup mouth 2 and smoothly transitions with the structure of the flange 51, forming a radial reinforcing structure for supporting the flange 51 and the annular sealing lip 52. This structure ensures that the sealing lip can maintain a stable sealing shape under external pressure.

[0028] like Figure 5 As shown, the inner bottom surface of the cup bottom 3 is provided with a downwardly protruding fruit receiving groove 31, and the groove wall of the fruit receiving groove 31 is connected to the cup bottom 3 by radially distributed ribs 32. The lower end of the spiral reinforcing rib 4 extends to the cup bottom 3 and is interlaced with the ribs 32 to form a complete stress transmission path.

[0029] In actual production, this utility model adopts a multi-cavity injection mold and optimizes process parameters to ensure the molding quality of the spiral reinforcing ribs and the integrated sealing lip.

[0030] This invention effectively solves the technical problem of thin-walled plastic cups being prone to deformation and leakage at low temperatures by innovatively combining spiral reinforcing ribs with a leak-proof sealing structure. It is particularly suitable for the packaging needs of low-temperature blueberry yogurt and other dairy products containing fruit pieces.

[0031] Other aspects of this utility model that are not detailed herein are all conventional techniques known to those skilled in the art.

[0032] It should be noted that the terms “comprising,” “including,” or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] The scope of protection of this utility model is not limited to the technical solutions disclosed in the specific embodiments. Any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the technical essence of this utility model shall fall within the scope of protection of this utility model.

Claims

1. A low-temperature blueberry yogurt cup with anti-leakage reinforcing ribs, comprising a cup body (1), a cup mouth (2), and a cup bottom (3); characterized in that: The side wall of the cup body (1) is provided with a spiral reinforcing rib (4); the cup mouth (2) is provided with an outwardly turned flange (51), and the flange (51) is provided with an integrally formed annular sealing lip (52) in the circumferential direction; the upper end of the spiral reinforcing rib (4) extends to the lower part of the flange (51) of the cup mouth (2) and smoothly transitions with the structure of the flange (51) to form a radial reinforcing structure for supporting the flange (51) and the annular sealing lip (52).

2. The low-temperature blueberry yogurt cup with anti-leakage reinforcing ribs according to claim 1, characterized in that: The spiral angle of the spiral reinforcing rib (4) is 30-60 degrees.

3. A low-temperature blueberry yogurt cup with anti-leakage reinforcing ribs according to claim 2, characterized in that: The distribution density of the spiral reinforcing ribs (4) gradually increases from the cup mouth (2) to the cup bottom (3).

4. A low-temperature blueberry yogurt cup with anti-leakage reinforcing ribs according to claim 3, characterized in that: The cross-section of the spiral reinforcing rib (4) is arc-shaped, with a depth of 0.3-0.8 mm and a width of 0.5-1.5 mm.

5. A low-temperature blueberry yogurt cup with anti-leakage reinforcing ribs according to claim 1, characterized in that: The annular sealing lip (52) is integrally injection molded from the same polypropylene material as the cup body (1), with its free end inclined toward the center of the cup to form a line contact sealing part (54).

6. A low-temperature blueberry yogurt cup with anti-leakage reinforcing ribs according to claim 5, characterized in that: The inner circumferential side of the annular sealing lip (52) is provided with several discontinuous, hemispherical micro-protrusions (53).

7. A low-temperature blueberry yogurt cup with anti-leakage reinforcing ribs according to claim 1, characterized in that: The inner bottom surface of the cup bottom (3) is provided with a downwardly protruding fruit grain receiving groove (31), and the groove wall of the fruit grain receiving groove (31) is connected to the cup bottom (3) by radially distributed ribs (32).

8. A low-temperature blueberry yogurt cup with anti-leakage reinforcing ribs according to claim 7, characterized in that: The lower end of the spiral reinforcing rib (4) extends to the bottom of the cup (3) and intersects or connects with the rib plate (32).

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