cup

Abstract

The application relates to a cup, comprising a cup body and a cup cover, wherein the top of the cup body is provided with a cup mouth for liquid to enter or exit the cup body; the cup cover comprises a top cover and a side cover connected to the periphery of the top cover, the side cover is used for being connected to the outer periphery of the cup body, the side of the top cover facing the cup mouth is provided with a covering part, the material of the covering part is an elastic material; when the side cover is connected to the cup body, the covering part abuts against the top edge of the cup body to cover the cup mouth. By arranging the covering part made of the elastic material on the side of the top cover facing the cup mouth, when the covering part abuts against the cup mouth, the covering part is elastically deformed due to the pressure, and the covering part can be elastically deformed to different degrees according to the different heights of the cup mouth, so that the gap between the cup cover and the cup mouth caused by the length tolerance of the cup mouth is compensated, the problem of poor sealing of the cup cover to the cup mouth caused by the length tolerance of the cup mouth is eliminated, and the sealing performance of the cup cover to the cup mouth is improved.

Description

Technical Field

[0001] This application relates to the technical field of liquid containers, and in particular to a cup. Background Technology

[0002] As an everyday necessity, the sealing performance of a cup is a key indicator of product quality. During the manufacturing process, the rim of the cup (especially metal cups) undergoes complex finishing processes such as cutting and polishing. Due to unavoidable factors such as machine tool precision, mold wear, material stress release, and microscopic deformation, the axial height (i.e., the length of the rim) of cups produced in batches using these processes will inevitably have certain manufacturing tolerances. This dimensional variation is commonly referred to as the "rim length tolerance." Therefore, existing technologies commonly suffer from poor sealing between the lid and the rim due to rim length tolerances, leading to liquid leakage from gaps. Utility Model Content

[0003] Therefore, it is necessary to provide a cup that can improve the sealing performance of the lid to the rim.

[0004] A cup, comprising:

[0005] The cup body has an opening at the top for liquid to enter and exit the cup body;

[0006] The cup lid includes a top cover and a side cover connected to the periphery of the top cover. The side cover is used to connect to the outer periphery of the cup body. The top cover has a covering portion protruding on the side facing the cup mouth. The covering portion is made of an elastic material. When the side cover is connected to the cup body, the covering portion abuts against the top edge of the cup body to cover the cup mouth.

[0007] In one embodiment, the covering portion is an annular flange extending downward from the top cover.

[0008] In one embodiment, the inner diameter of the annular flange gradually increases from top to bottom, and when the side cover is connected to the cup body, the inner peripheral wall of the annular flange abuts against the top edge of the cup body.

[0009] In one embodiment, the bottom of the annular flange extends radially outward to form a bent portion, the bent portion is inclined upward from the annular flange, and the inner peripheral wall of the bent portion can abut against the top edge of the cup body.

[0010] In one embodiment, the top cover includes a connector and a seal. The connector has a clearance hole, the seal passes through the clearance hole, and the covering portion is located on the side of the seal facing the cup opening, and the covering portion is integrally formed with the seal. The periphery of the connector away from the clearance hole is the outer periphery, and the side cover is connected to the outer periphery of the connector.

[0011] In one embodiment, the sidewall of the seal is provided with a snap-fit ​​groove for the inner periphery of the connector to be inserted.

[0012] In one embodiment, the connector includes a first plate and a second plate arranged sequentially from the outside to the inside and connected to each other, and the second plate is located below the first plate in the height direction of the cup lid; the inner periphery of the second plate is inserted into the snap-fit ​​groove, and the top surface of the first plate and the top surface of the seal are on the same surface or substantially on the same surface.

[0013] In one embodiment, the top of the cup body is provided with an outwardly rolled edge, and when the side cover is connected to the cup body, the cover abuts against the rolled edge.

[0014] In one embodiment, the cup body includes an outer cup body and an inner cup body disposed inside the outer cup body. The side of the bottom wall of the outer cup body facing the inner cup body is defined as a first wall surface, and the side of the bottom wall of the inner cup body facing the outer cup body is defined as a second wall surface. The first wall surface is provided with a protrusion extending toward the second wall surface, and the protrusion abuts against the second wall surface.

[0015] In one embodiment, the first wall surface is provided with an annular groove and a limiting member that is held in the annular groove. The protrusion is integrally formed on the limiting member and is located outside the annular groove. The limiting member is made of an elastic material.

[0016] In one embodiment, the inner cup is a titanium cup and the outer cup is a transparent cup.

[0017] Compared with the prior art, the cup provided in this application has a cover made of elastic material on the side of the lid facing the mouth of the cup. When the cover comes into contact with the mouth of the cup, the cover undergoes elastic deformation due to pressure. The cover can undergo different degrees of elastic deformation according to different heights at the mouth of the cup, so as to compensate for the gap between the lid and the mouth of the cup caused by the length tolerance of the mouth of the cup. This makes the lid and the mouth of the cup form an effective seal, eliminating the problem of poor sealing between the lid and the mouth of the cup caused by the length tolerance of the mouth of the cup, thereby improving the sealing performance between the lid and the mouth of the cup. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of a cup according to an embodiment of this application;

[0020] Figure 2 for Figure 1 Cross-sectional view at point A in the middle;

[0021] Figure 3 for Figure 2 A magnified view of a section at point M;

[0022] Figure 4 for Figure 2 Schematic diagram of the middle sealing component;

[0023] Figure 5 for Figure 2 A magnified view of a portion of point N in the middle;

[0024] Figure 6 This is a schematic diagram of the structure of the base and protrusion according to an embodiment of this application.

[0025] Reference numerals: 1. Cup; 10. Cup body; 101. Cup mouth; 11. Rolled edge; 12. Outer cup body; 1201. First wall surface; 121. Protrusion; 122. Annular groove; 123. Limiting component; 124. Side cup body; 125. Base; 13. Inner cup body; 1301. Second wall surface; 20. Cup lid; 21. Top lid; 211. Covering part; 2111. Bending part; 212. Connecting component; 21201. Clearance hole; 2121. First plate; 2122. Second plate; 213. Sealing component; 21301. Snap-fit ​​groove; 22. Side cover; 31. First sealing ring; 32. Second sealing ring; 40. Handle. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0031] Please see Figures 1 to 6 This application provides a cup 1, including a cup body 10 and a cup lid 20 installed on the cup body 10. The cup body 10 has a cup opening 101 at the top for liquid to enter and exit the cup body 10. The cup lid 20 includes a top cover 21 and a side cover 22 connected to the periphery of the top cover 21. The side cover 22 is used to connect to the outer periphery of the cup body 10. The top cover 21 has a covering portion 211 protruding on the side facing the cup opening 101. The covering portion 211 is made of an elastic material. When the side cover 22 is connected to the cup body 10, the covering portion 211 abuts against the top edge of the cup body 10 to cover the cup opening 101.

[0032] It is understandable that since the covering part 211 is made of an elastic material, it can undergo elastic deformation when the covering part 211 is subjected to pressure. In this embodiment, a covering part 211 is provided on the side of the top cover 21 of the cup lid 20 facing the cup mouth 101. When the covering part 211 abuts against the cup mouth 101, the covering part 211 undergoes elastic deformation due to pressure. Since there is a length tolerance at the cup mouth 101, that is, the pressure applied to the covering part 211 at the cup mouth 101 is different, the covering part 211 can undergo different degrees of elastic deformation for different heights (i.e., different pressures) at the cup mouth 101. This compensates for the gap between the cup lid 20 and the cup mouth 101 caused by the length tolerance of the cup mouth 101, so that an effective seal is formed between the cup lid 20 and the cup mouth 101. This eliminates the problem of poor sealing between the cup lid 20 and the cup mouth 101 caused by the length tolerance at the cup mouth 101, improves the sealing performance of the cup lid 20 to the cup mouth 101, and makes it less likely for the liquid in the cup body 10 to leak from the connection between the cup body 10 and the cup lid 20.

[0033] In illustrative terms, the elastic material used to prepare the cover portion 211 is silicone. Thus, the cover portion 211 not only has elasticity but also advantages such as high temperature resistance and safety. In other embodiments, the elastic material can also be thermoplastic polyurethane, food-grade rubber, etc. This application does not limit this choice, as long as the material is safe and can compensate for the gap between the cup lid 20 and the cup mouth 101 caused by the length tolerance of the cup mouth 101.

[0034] Indicatively, the covering part 211 can be attached to the top cover 21 by adhesive. When the covering part 211 and the top cover 21 are made of the same material, the covering part 211 can also be integrally formed with the top cover 21. This application does not limit this, as long as the covering part 211 can abut against the cup mouth 101 of the cup body 10 (i.e., the top edge of the cup body 10) when the cup lid 20 is attached to the cup body 10.

[0035] In one embodiment, see Figure 2 and Figure 3 The covering portion 211 is an annular flange extending downward from the top cover 21. It is understood that the covering portion 211 abuts against the top edge of the cup body 10, and the top edge of the cup body 10 is a hollow ring. Thus, the annular flange can form a closed, seamless sealing ring with the annular top edge of the cup body 10, thereby improving the sealing performance between the covering portion 211 and the cup opening 101. Furthermore, compared to a solid covering portion 211, the annular flange has a smaller overall volume, saving material in manufacturing the covering portion 211 and thus helping to reduce the production cost of the cup 1.

[0036] For further details, please refer to [link / reference]. Figure 2 and Figure 3The inner diameter of the annular flange gradually increases from top to bottom, and when the side cover 22 is connected to the cup body 10, the inner peripheral wall of the annular flange abuts against the top edge of the cup body 10. That is to say, the inner peripheral wall of the annular flange is a trumpet-shaped inner peripheral wall. Thus, during the process of installing the cup cover 20 onto the cup body 10, the trumpet-shaped annular flange can guide the top edge of the cup body 10, making the alignment process between the annular flange and the top edge of the cup body 10 easier. Moreover, the extension direction of the trumpet-shaped annular flange intersects with the extension direction of the top edge of the cup body 10, making the contact between the annular flange and the top edge of the cup body 10 tighter, and generating a more reliable interference seal under the action of radial component force, thereby improving the sealing effect between the cup cover 20 and the cup body 10.

[0037] Furthermore, the bottom of the annular flange extends radially outward to form a bent portion 2111. The bent portion 2111 is inclined upward from the annular flange, and its inner peripheral wall can abut against the top edge of the cup body 10. It can be understood that the bent portion 2111 is inverted trumpet-shaped relative to the annular flange. In this embodiment, a "double-locking" sealing system is constructed through two consecutive trumpet-shaped structures. First, the inverted trumpet-shaped structure of the bent portion 2111 acts as a primary guide, generating an inward converging force when it contacts the cup opening 101, guiding the cup lid 20 to accurately position itself against the top edge of the cup body 10 and initially gripping the cup rim. When the lid 20 is fully closed on the cup body 10, the bent part 2111 efficiently converts the axial downward pressure on the annular flange into a strong, continuously upward radial locking force with its inclined angle. This force complements the sealing force generated by the annular flange body, thereby achieving a "hook-like" wrapping and pressing of the top edge of the cup body 10 from both the inside and bottom dimensions. This greatly enhances the adaptability to the length tolerance of the cup mouth 101 and ensures the absolute reliability and stability of the seal between the cover part 211 and the top edge of the cup body 10.

[0038] In one embodiment, the top cover 21 includes a connector 212 and a seal 213. The connector 212 has a clearance hole 21201, and the seal 213 passes through the clearance hole 21201. A covering portion 211 is located on the side of the seal 213 facing the cup opening 101, and the covering portion 211 is integrally formed with the seal 213. The periphery of the connector 212 away from the clearance hole 21201 is the outer periphery, and the side cover 22 is connected to the outer periphery of the connector 212. It is understood that after a period of use, the elastic material may experience aging, decreased elasticity, etc., leading to a failure of the seal between the covering portion 211 and the cup body 10. In this case, the sealing effect between the covering portion 211 and the cup body 10 can be improved by replacing the seal 213, thereby reducing the user's usage costs. Furthermore, the detachable connector 212 and seal 213 not only make cleaning easier, but also make it easier to remove the seal 213 and seal 211 from the lid 20 when the connector 212 and the cover 211 are made of different materials, and when the user discards the cup 1, making it easier to recycle the different parts of the cup 1 according to their materials.

[0039] Furthermore, the side wall of the seal 213 is provided with a snap-fit ​​groove 21301 for the inner periphery of the connector 212 to be inserted. Thus, due to the interaction between the snap-fit ​​groove 21301 of the seal 213 and the connector 212, the seal 213 is less likely to detach from the connector 212, making the connection between the seal 213 and the connector 212 more stable. Moreover, since the plug-in connection between the seal 213 and the connector 212 does not use other components to fix them, the assembly and disassembly of the seal 213 and the connector 212 are relatively simple. This not only improves the production efficiency of the cup 1 but also enhances the user experience by simplifying assembly and disassembly.

[0040] In one embodiment, the connector 212 includes a first plate 2121 and a second plate 2122 arranged sequentially from the outside in and connected to each other. In the height direction of the cup lid 20, the second plate 2122 is located below the first plate 2121. The inner periphery of the second plate 2122 is inserted into a snap-fit ​​groove 21301. The top surface of the first plate 2121 and the top surface of the seal 213 are on the same surface or substantially on the same surface. This not only prevents interference between the connector 212 / seal 213 and external objects, but also prevents dust accumulation and bacterial growth at the connection point of the connector 212 / seal 213 (i.e., the periphery of the clearance hole 21201), thereby improving the hygiene of the cup body 10 during use.

[0041] Furthermore, the outer peripheral wall of the sealing element 213 abuts against the inner peripheral wall of the first plate 2121 to form a sealing fit with the first plate 2121. This further prevents dust, bacteria, etc. from entering the cup body 10 through the connection between the first plate 2121 and the sealing element 213, thereby further improving the hygiene of the cup body 10 during use.

[0042] In one embodiment, the top of the cup body 10 is provided with an outwardly rolled edge 11, and when the side cover 22 is connected to the cup body 10, the cover 211 abuts against the rolled edge 11. It is understood that the outer surface of the rolled edge 11 is a smooth arc surface, and when the user comes into contact with the arc surface of the rolled edge 11 while drinking water, the rolled edge 11 provides the user with a better taste.

[0043] Furthermore, when the covering part 211 is a trumpet-shaped annular flange, the covering part 211 and the top edge of the cup body 10 are sealed by the cooperation between the arc surface of the annular flange and the arc surface of the rolled edge part 11, thereby improving the sealing effect between the covering part 211 and the top edge of the cup body 10.

[0044] In one embodiment, see Figure 2 , Figure 5 and Figure 6 The cup body 10 includes an outer cup body 12 and an inner cup body 13 disposed inside the outer cup body 12. The side of the bottom wall of the outer cup body 12 facing the inner cup body 13 is defined as a first wall surface 1201, and the side of the bottom wall of the inner cup body 13 facing the outer cup body 12 is defined as a second wall surface 1301. A protrusion 121 extending towards the second wall surface 1301 is provided on the first wall surface 1201, and the protrusion 121 abuts against the second wall surface 1301. It is understood that there is a certain distance between the bottom of the inner cup body 13 and the bottom of the outer cup body 12. The two ends of the protrusion 121, distributed along the height direction, act on the inner cup body 13 and the outer cup body 12 respectively, which can prevent the inner cup body 13 and the outer cup body 12 from shaking.

[0045] Furthermore, the first wall surface 1201 is provided with an annular groove 122 and a limiting member 123 that is held in the annular groove 122. The protrusion 121 is integrally formed with the limiting member 123, and the protrusion 121 is located outside the annular groove 122. The limiting member 123 is made of an elastic material. It is understandable that, during the manufacturing of the inner cup 13 and the outer cup 12, due to the manufacturing process, the total height of the inner cup 13 and the outer cup 12 will have a length tolerance. That is, the distance between the bottom of the inner cup 13 and the bottom of the outer cup 12 will fluctuate within a certain range. Therefore, different distances between the bottom of the inner cup 13 and the bottom of the outer cup 12 will cause different pressures on the protrusion 121. Because the protrusion 121 made of elastic material has the property of elastic deformation under pressure, the protrusion 121 can undergo different degrees of elastic deformation according to different pressures, thereby absorbing the height difference between the bottom of the inner cup 13 and the bottom of the outer cup 12, and preventing the inner cup 13 and the outer cup 12 from shaking.

[0046] In illustrative terms, the protrusion 121 is made of silicone. In other embodiments, the protrusion 121 may also be made of other elastic materials, such as rubber; this application is not limited in this regard. Figure 6 In the illustrated embodiment, three protrusions 121 are provided to improve the stability between the inner cup 13 and the outer cup 12. In other embodiments, the number of protrusions 121 may also be different.

[0047] In one embodiment, see Figure 5 The outer cup body 12 includes a side cup body 124 and a base 125. The bottom of the side cup body 124 is threadedly connected to the base 125 for easy assembly. In addition, the shape and color of the base 125 can be changed according to the appearance requirements of the cup 1, thereby improving the appearance flexibility of the cup 1.

[0048] It should be noted that in this embodiment, the cup body 10 is assembled as follows: first, the side cup body 124 and the inner cup body 13 are fitted together, and then the base 125 is tightened onto the side cup body 124.

[0049] Furthermore, a first sealing ring 31 is provided between the side cup body 124 and the base 125. This prevents liquids such as water from entering between the inner cup body 13 and the outer cup body 12 from the connection between the side cup body 124 and the base 125.

[0050] In one embodiment, see Figure 3The shoulder of the side cup body 124 and the inner cup body 13 are fixedly connected together at the shoulder by a second sealing ring 32. It can be understood that the shoulder of the side cup body 124 and the shoulder of the inner cup body 13 are directly fixed together by extruding silicone, without any other auxiliary connection methods. This not only simplifies the connection method but also prevents liquids such as water from entering between the inner cup body 13 and the outer cup body 12 from the connection point between the outer cup body 12 and the outer cup body 12.

[0051] In addition, when the second sealing ring 32 becomes dirty, the cup body 10 can be disassembled for cleaning. When discarding the cup body 10, the second sealing ring 32 can also be disassembled and recycled according to its material.

[0052] Indicatively, the first sealing ring 31 and / or the second sealing ring 32 are made of silicone.

[0053] In one embodiment, the inner cup body 13 is made of titanium. Titanium, as a biocompatible metal, is not prone to bacterial growth on its surface, is non-toxic and harmless to the human body, and does not cause any allergic reactions. Furthermore, titanium has extremely high chemical stability and is highly corrosion-resistant. Even when acidic beverages (such as juice or carbonated drinks) are stored for extended periods, heavy metal ions such as chromium and nickel will not leach out. Thus, the titanium cup body is not only healthier but also helps maintain the original flavor of the beverage. In addition, the titanium cup body is relatively lightweight. This embodiment reduces the overall weight of the cup 1 by reducing the weight of the inner cup body 13, making the cup 1 more portable and improving the user experience.

[0054] Furthermore, the outer cup body 12 is transparent. It is understandable that titanium cup bodies are relatively expensive; by choosing other materials to make the outer cup body 12, the overall cost of the cup 1 can be reduced, thereby lowering the selling price of the cup 1 and increasing its market share. In addition, when there are patterns on the outer periphery of the inner cup body 13 or between the inner cup body 13 and the outer cup body 12, a transparent cup body makes it easier to display those patterns.

[0055] As an illustration, the outer cup body 12 may be made of copolyester or other transparent materials, and this application does not limit this.

[0056] In one embodiment, the cup lid 20 is also provided with a handle 40, and there is a carrying space between the handle 40 and the top surface of the cup lid 20 for fingers to pass through. It is understood that the user can move and carry the cup 1 through the handle 40, thereby making the cup 1 more portable.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A cup, characterized in that, include: The cup body (10) has a cup opening (101) at the top for liquid to enter and exit the cup body (10); The cup lid (20) includes a top cover (21) and a side cover (22) connected to the periphery of the top cover (21). The side cover (22) is used to connect to the outer periphery of the cup body (10). The top cover (21) has a covering part (211) protruding on the side facing the cup mouth (101). The covering part (211) is made of an elastic material. When the side cover (22) is connected to the cup body (10), the covering part (211) abuts against the top edge of the cup body (10) to cover the cup mouth (101).

2. The cup according to claim 1, characterized in that, The covering portion (211) is an annular flange extending downward from the top cover (21).

3. The cup according to claim 2, characterized in that, The inner diameter of the annular flange gradually increases from top to bottom, and when the side cover (22) is connected to the cup body (10), the inner peripheral wall of the annular flange abuts against the top edge of the cup body (10).

4. The cup according to claim 3, characterized in that, The bottom of the annular flange extends outward along its own radial direction to form a bent portion (2111). The bent portion (2111) is inclined upward from the annular flange, and the inner peripheral wall of the bent portion (2111) can be tightly fitted with the top edge of the cup body (10).

5. The cup according to claim 2, characterized in that, The top cover (21) includes a connector (212) and a seal (213). The connector (212) is provided with a clearance hole (21201). The seal (213) passes through the clearance hole (21201). The covering part (211) is provided on the side of the seal (213) facing the cup mouth (101), and the covering part (211) is integrally formed on the seal (213). The periphery of the connector (212) away from the clearance hole (21201) is the outer periphery, and the side cover (22) is connected to the outer periphery of the connector (212).

6. The cup according to claim 5, characterized in that, The side wall of the seal (213) is provided with a snap-fit ​​groove (21301) for the inner periphery of the connector (212) to be inserted.

7. The cup according to claim 6, characterized in that, The connector (212) includes a first plate (2121) and a second plate (2122) arranged sequentially from the outside to the inside and connected to each other. In the height direction of the cup lid (20), the second plate (2122) is located below the first plate (2121). The inner periphery of the second plate (2122) is inserted into the snap-fit ​​groove (21301). The top surface of the first plate (2121) and the top surface of the seal (213) are on the same surface or substantially on the same surface.

8. The cup according to any one of claims 1 to 7, characterized in that, The top of the cup body (10) is provided with an outwardly rolled edge (11), and when the side cover (22) is connected to the cup body (10), the cover (211) abuts against the rolled edge (11).

9. The cup according to any one of claims 1 to 7, characterized in that, The cup body (10) includes an outer cup body (12) and an inner cup body (13) disposed inside the outer cup body (12). The side of the bottom wall of the outer cup body (12) facing the inner cup body (13) is defined as a first wall surface (1201), and the side of the bottom wall of the inner cup body (13) facing the outer cup body (12) is defined as a second wall surface (1301). The first wall surface (1201) is provided with a protrusion (121) extending toward the second wall surface (1301), and the protrusion (121) abuts against the second wall surface (1301).

10. The cup according to claim 9, characterized in that, The first wall surface (1201) is provided with an annular groove (122) and a limiting member (123) that is held in the annular groove (122). The protrusion (121) is integrally formed on the limiting member (123) and the protrusion (121) is located outside the annular groove (122). The limiting member (123) is made of an elastic material.

11. The cup according to claim 9, characterized in that, The inner cup (13) is a titanium cup, and the outer cup (12) is a transparent cup.

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