Cup cover and cup

Abstract

The cup cover is used for covering a cup body, the cup cover comprises an outer cover body and an inner plug with a pressure relief valve, the inner plug comprises a main body and a lower bottom plate, the upper portion of the main body is connected with the outer cover body, and the main body is provided with a pressure relief channel penetrating through the upper end and the lower end in the first direction; and the lower bottom plate is detachably mounted at the lower part of the main body so as to open or cover the lower opening of the pressure relief channel. According to the cup cover, the inner plug is arranged to be of the split type structure comprising the main body and the lower bottom plate, the main body is connected with the outer cover, the lower bottom plate is detachably connected to the lower portion of the main body, and food is mainly accumulated above the lower bottom plate after overflowing into the pressure relief channel, so that the lower bottom plate can be detached from the main body to be scrubbed, scrubbing is more convenient, and the cup cover is convenient to use. And food accumulated above the lower bottom plate can be cleaned more thoroughly, the cleanliness of the cup cover is ensured, and the use sanitation effect of the cup is improved.

Description

Technical Field

[0001] This application relates to the technical field of cups, and more particularly to a cup lid and a cup. Background Art

[0002] Cups are common household utensils. There are various types of cups on the market, with different structures and functions, providing consumers with a large selection space, such as thermos cups, tea cups, wine glasses, smart cups, slow cookers, etc. Currently, some cups on the market can be used for cooking food. The specific operation is to put food (especially soups) into the cup, then pour in boiling water, and then cover the lid and let it simmer for several hours. By leveraging the heat preservation function of the cup, the food is cooked at a temperature close to boiling water. It is a convenient and economical cooking utensil. Such cups are mainly slow cookers, which have multiple functions such as boiling, stewing, simmering, burning, heat preservation, cold preservation, and portability. Most of these cups include a cup body and a cup lid. The cup lid consists of an outer lid and an inner plug. A pressure relief valve is installed on the inner plug, and there is a pressure relief space between the inner plug and the cup lid. However, during use, the food in the cup body easily enters the pressure relief space through the gap between the pressure relief valve and the inner plug, resulting in the accumulation of food in the pressure relief space, which is difficult to clean. After spoilage, it causes bacterial growth and affects pressure relief.

[0003] To solve the above technical problems, although some cup lids in the prior art are designed with a detachable structure between the inner plug and the outer lid, specifically, the top of the inner plug is detachably connected to the outer lid. However, these prior arts do not consider the issue of ease of cleaning. Since the food made in a slow cooker is mostly fluid food, after this kind of food enters the inner plug, it will flow downward along the gravity and accumulate on the lower bottom plate of the inner plug. Also, since the food made in a slow cooker is mostly sticky food with soup, these foods will adhere very firmly to the inner wall surface of the inner plug after the water evaporates. In addition, a corner area will be formed between the lower bottom plate and the side wall of the inner plug, which may cause the food to cover the corner area, and the food adheres to both the lower bottom plate and the side wall at the same time, making it very difficult to clean. Moreover, when removing this inner plug for cleaning, one needs to put their hand into the inside of the inner plug to scrub the adhered food. This finger insertion action makes it difficult to apply force with the fingers, and thus the scrubbing is not convenient. Under the combined action of these two factors, the food inside the inner plug is difficult to be thoroughly cleaned, and the impact of residues on hygiene cannot be alleviated. Utility Model Content

[0004] This application provides a cup lid and a cup to solve the technical problems that in the current cup lid, even if the inner plug is removed from the outer lid for cleaning, there are still difficulties in cleaning the corners of the lower bottom plate and incomplete cleaning.

[0005] The technical solutions adopted in this application are as follows:

[0006] A cup lid for covering a cup body, the cup lid comprising an outer lid and an inner plug with a pressure relief valve, the inner plug comprising a main body and a lower bottom plate, an upper part of the main body being connected to the outer lid, the main body being provided with a pressure relief channel penetrating through upper and lower ends in a first direction, the lower bottom plate being detachably mounted on a lower part of the main body to open or close a lower opening of the pressure relief channel.

[0007] The cup lid provided by the present application further comprises the following additional technical features:

[0008] When the lower bottom plate is connected to the main body, a lower end surface of the lower bottom plate is flush with a lower end surface of the main body.

[0009] The lower bottom plate comprises a bottom wall and a side wall connected to the bottom wall, the side wall being provided with an external thread, an inner wall of the pressure relief channel being provided with an internal thread, and the lower bottom plate being detachably connected to the main body through the external thread and the internal thread.

[0010] The bottom wall is provided with a screwing operation convex portion protruding downward, and the two screwing operation convex portions are symmetrically arranged on both sides of a central plane of the lower bottom plate.

[0011] The bottom wall bulges upward and is provided with a pressure relief hole communicating with the pressure relief channel, and the pressure relief valve is installed in the pressure relief hole.

[0012] The cup lid further comprises a sealing ring, the lower bottom plate is installed on the main body, and the sealing ring forms a seal between the lower bottom plate and the main body.

[0013] The lower bottom plate is provided with a sealing lip protruding outward in a circumferential direction, the main body is provided with a sealing step portion extending circumferentially around the pressure relief channel, and the sealing lip presses the sealing ring upward against the sealing step portion.

[0014] An inner wall of a part of the main body near the lower opening extends in the first direction.

[0015] One of the main body and the outer lid is provided with an anti-fooling convex portion, and the other of the two is provided with an anti-fooling groove adapted to the anti-fooling convex portion.

[0016] A cup provided by the present application comprises a cup body and the cup lid as described above. Among them, the main body surrounds the lower bottom plate, an outer wall of the main body is provided with an external thread, and an inner wall of the cup body is provided with an internal thread adapted to the external thread of the outer wall.

[0017] Due to the adoption of the above technical solutions, the technical effects achieved by the present application at least include:

[0018] 1. The cup lid provided by the present application, compared with the integral inner plug in the prior art, has the inner plug configured as a split structure including a main body and a lower bottom plate. The main body is connected to the outer lid, and the lower bottom plate is detachably connected to the lower part of the main body. Since the food mainly accumulates on the lower bottom plate after flowing into the pressure relief channel, the lower bottom plate can be removed from the main body for scrubbing, which is more convenient and can more thoroughly clean the food accumulated in the sanitary dead corners, ensuring the cleanliness of the cup lid and improving the hygienic effect of using the cup. Moreover, configuring the cup lid in a form with a detachable lower bottom plate, on the one hand, after the lower bottom plate is removed, a large corner area formed between the lower bottom plate and the side wall of the main body can be eliminated, facilitating scrubbing, and the size of the lower bottom plate is small, so it is also convenient to perform a full-range cleaning after removal; on the other hand, since the residue has a tendency to flow downward, most of the residue will accumulate on the lower bottom plate and the lower inner wall of the main body. Therefore, after removing the lower bottom plate, it is also convenient to clean the lower inner wall of the main body.

[0019] 2. As a preferred embodiment of the present application, when the lower bottom plate is connected to the main body, the lower end surface of the lower bottom plate is flush with the lower end surface of the main body. Compared with the case where the lower bottom plate protrudes below the lower end surface of the main body, this effectively reduces the overall height of the inner plug, makes the inner plug structure more compact, occupies less space in the cup body, and also effectively reduces the heat exchange area of the lower bottom plate exposed in the inner cavity of the cup, which is beneficial to improving the heat preservation effect of the cup.

[0020] 3. As a preferred embodiment of the present application, the lower bottom plate is detachably connected to the main body through an external thread and an internal thread, making the disassembly and assembly of the lower bottom plate convenient, fast, and operable by hand. In a preferred embodiment, two screwing operation protrusions are symmetrically arranged on both sides of the central plane of the lower bottom plate, enabling the user to use the screwing operation protrusions as the force-applying handles for rotating the lower bottom plate, making the disassembly and assembly process of the lower bottom plate more labor-saving and further improving the convenience of disassembly and assembly of the lower bottom plate. In another preferred embodiment, the bottom wall of the lower bottom plate bulges upward and is provided with a pressure relief hole communicating with the pressure relief channel, and a pressure relief valve is installed in the pressure relief hole, making the pressure relief valve face the inner cavity of the cup, which helps with pressure relief. The upward bulge of the bottom wall of the lower bottom plate, on the one hand, can keep the bottom wall of the lower bottom plate as far away as possible from the food contained in the cup body, reducing heat exchange and improving the heat preservation effect, and also increasing the distance between the pressure relief valve and the food, effectively reducing the risk of food overflowing into the pressure relief channel through the pressure relief hole; on the other hand, for the embodiment where the bottom wall is provided with a screwing operation protrusion protruding downward, it also increases the height of the screwing operation protrusion, forming a recessed cavity on the bottom wall of the lower bottom plate, effectively preventing the height of the screwing operation protrusion from being too low and directly contacting the food inside the cup body.

[0021] 4. As a preferred embodiment of the present application, a seal is formed between the lower base plate and the main body through a sealing ring, effectively preventing the food in the cup body from entering the pressure relief channel through the threaded fitting gap between the lower base plate and the main body. In a preferred embodiment, the lower base plate is provided with a sealing lip, and the main body is provided with a sealing step portion. The sealing lip presses the sealing ring upward against the sealing step portion. On the one hand, the installation reliability of the sealing ring is ensured and the sealing effect is improved. On the other hand, for the embodiment in which the lower base plate and the main body are connected by threads as described above, the flexibility of the sealing ring can also be utilized to give a damping feel when screwing the lower base plate into the main body, improving the hand feeling experience of opening and closing the lower base plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0023] Figure 1 is the assembly drawing of the cup lid provided by the embodiment of the present application;

[0024] Figure 2 is the cross-sectional view of the cup lid provided by the embodiment of the present application;

[0025] Figure 3 is Figure 2 the partial enlarged view of the structure at A in

[0026] Figure 4 is the structural schematic diagram of the lower base plate provided by the embodiment of the present application Figure 1 ;

[0027] Figure 5 is the structural schematic diagram of the lower base plate provided by the embodiment of the present application Figure 2 ;

[0028] Figure 6 is the structural schematic diagram of the main body provided by the embodiment of the present application Figure 1 ;

[0029] Figure 7 is the structural schematic diagram of the main body provided by the embodiment of the present application Figure 2 ;

[0030] Figure 8 is the structural schematic diagram of the outer lid provided by the embodiment of the present application.

[0031] List of components and reference numerals:

[0032] 1 outer lid, 11 anti-fooling convex portion;

[0033] 2 pressure relief valve;

[0034] 3 Inner plug, 31 Main body, 311 Pressure relief channel, 312 Internal thread, 313 Sealing step portion, 314 Anti-fooling groove, 315 Second external thread, 32 Lower bottom plate, 321 Bottom wall, 322 Side wall, 323 First external thread, 324 Screwing operation convex portion, 325 Pressure relief hole, 326 Sealing lip;

[0035] 4 Sealing ring. Specific embodiments

[0036] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail by way of examples in conjunction with the drawings of the specification.

[0037] In the following description, many specific details are set forth in order to fully understand the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0038] In addition, in the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "transverse", "longitudinal", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present application.

[0039] In the present application, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0041] In the embodiments of the present application, a cup lid is provided. For the convenience of description and understanding, the following content provided by the present application is elaborated based on the illustrated product structure. Of course, those skilled in the art can understand that the above structure is only a specific example and schematic description, and cannot constitute a specific limitation on the technical solution provided by the present application.

[0042] As Figures 1 to 8 shown, a cup lid provided by the present application is used to cover a cup body. The cup lid includes an outer lid 1 and an inner plug 3 with a pressure relief valve 2. The inner plug 3 includes a main body 31 and a lower bottom plate 32. The upper part of the main body 31 is connected to the outer lid 1. The main body 31 is provided with a pressure relief channel 311 that penetrates through the upper and lower ends along a first direction. The lower bottom plate 32 is detachably installed at the lower part of the main body 31 to open or close the lower opening of the pressure relief channel 311.

[0043] Compared with the integral inner plug in the prior art, the inner plug 3 of the cup lid provided by the present application is set as a split structure including a main body 31 and a lower bottom plate 32. The main body 31 is connected to the outer lid 1, and the lower bottom plate 32 is detachably connected to the lower part of the main body 31. Since the food mainly accumulates on the lower bottom plate 32 after overflowing into the pressure relief channel 311, the lower bottom plate 32 can be removed from the main body 31 for scrubbing. The scrubbing is more convenient and can more thoroughly clean the food accumulated in the sanitary dead corner, ensuring the cleanliness of the cup lid and improving the hygienic effect of using the cup.

[0044] The present application does not limit the connection method between the main body 31 and the outer lid 1. For example, the two can be formed into an inseparable connection by welding or other means, or can be formed into a detachable connection by clamping, threaded connection or other means. Regarding the first direction, in a preferred embodiment, the first direction is designed as the vertical direction, so that the pressure relief channel 311 penetrates through the upper and lower ends of the main body 31 along the vertical direction, and the central axis of the pressure relief channel 311 extends along the vertical direction, with a simple structure and smooth pressure relief.

[0045] As a preferred implementation manner of the present application, as Figure 2 shown, when the lower bottom plate 32 is connected to the main body 31, the lower end surface of the lower bottom plate 32 is flush with the lower end surface of the main body 31. Specifically, the lower bottom plate 32 can be integrally installed inside the pressure relief channel 311. By this way, the lower end surface of the lower bottom plate 32 is made flush with the lower end surface of the main body 31. Compared with the case where the lower bottom plate 32 protrudes below the lower end surface of the main body 31, the overall height of the inner plug 3 is effectively reduced, the structure of the inner plug 3 is more compact, the occupied space of the inner plug 3 in the cup body is smaller, and moreover, the heat exchange area of the lower bottom plate 32 exposed in the inner cavity of the cup is effectively reduced, which is beneficial to improving the heat preservation effect.

[0046] Regarding the detachable connection method between the lower base plate 32 and the main body 31, as a preferred embodiment, as Figures 2 to 4 and Figure 6 shown, the lower base plate 32 includes a bottom wall 321 and a side wall 322 connected to the bottom wall 321. The side wall 322 is provided with an external thread, and the inner wall of the pressure relief channel 311 is provided with an internal thread 312. The lower base plate 32 is detachably connected to the main body 31 through the external thread and the internal thread 312, making the disassembly and assembly of the lower base plate 32 convenient, fast, and operable by hand. To facilitate the distinction between the external thread of the lower base plate 32 and the external thread of the main body 31 in the following embodiments, the drawings illustrate the external thread of the lower base plate 32 by the first external thread 323 and the external thread of the main body 31 by the second external thread 315.

[0047] As a preferred embodiment under this implementation manner, as Figure 5 shown, the bottom wall 321 is provided with a screwing operation convex portion 324 protruding downward. The two screwing operation convex portions 324 are symmetrically arranged on both sides of the central plane of the lower base plate 32, enabling the user to use the screwing operation convex portion 324 as a force application handle for rotating the lower base plate 32, making the disassembly and assembly process of the lower base plate 32 more labor-saving and further improving the convenience of disassembly and assembly of the lower base plate 32. Preferably, the screwing operation convex portion 324 can be designed as the Figure 5 wavy shape shown, which is convenient for applying force. Of course, it can also be set to other suitable structures such as a columnar shape or a tubular shape.

[0048] As a preferred embodiment under this implementation manner, as Figure 2 , Figure 4 and Figure 5 shown, the bottom wall 321 bulges upward and is provided with a pressure relief hole 325 communicating with the pressure relief channel 311. The pressure relief valve 2 is installed in the pressure relief hole 325, making the pressure relief valve 2 face the inner cavity of the cup body, which helps with pressure relief. The bottom wall 321 of the lower base plate 32 bulges upward. On the one hand, it can make the bottom wall 321 of the lower base plate 32 as far away as possible from the food contained in the cup body, reducing heat exchange and improving the heat preservation effect, and also increasing the distance between the pressure relief valve 2 and the food, effectively reducing the risk of food overflowing into the pressure relief channel 311 through the pressure relief hole 325. On the other hand, for the embodiment in which the bottom wall 321 is provided with a screwing operation convex portion 324 protruding downward, it also increases the height of the screwing operation convex portion 324, forming a concave cavity on the bottom wall 321 of the lower base plate 32, effectively preventing the height of the screwing operation convex portion 324 from being too low and directly contacting the food inside the cup body.

[0049] In other implementation manners, the lower base plate 32 and the main body 31 can also be detachably connected in other suitable ways, such as snap connection, screw connection, etc.

[0050] As a preferred embodiment of the present application, as shown in Figure 2 and Figure 3 shown, the cup lid further includes a sealing ring 4. The lower bottom plate 32 is installed on the main body 31, and the sealing ring 4 forms a seal between the lower bottom plate 32 and the main body 31. Specifically, the sealing ring 4 can be sleeved on the outside of the lower bottom plate 32, and the sealing ring 4 is disassembled and assembled together with the lower bottom plate 32. When the lower bottom plate 32 is installed on the main body 31, the sealing ring 4 forms a seal between the lower bottom plate 32 and the main body 31, effectively preventing the food in the cup body from entering the pressure relief channel 311 through the thread fitting gap between the lower bottom plate 32 and the main body 31.

[0051] Furthermore, as shown in Figure 3 , Figure 4 and Figure 6 shown, the lower bottom plate 32 is provided with a sealing lip 326 protruding outward along the circumference, and the main body 31 is provided with a sealing step portion 313 extending circumferentially around the pressure relief channel 311. The sealing lip 326 presses the sealing ring 4 upward against the sealing step portion 313. Specifically, the sealing lip 326 can be provided below the external thread provided on the lower bottom plate 32, and the sealing step portion 313 is provided at the bottom opening of the pressure relief channel 311. After the lower bottom plate 32 is assembled, food can be prevented from entering the thread fitting structure between the main body 31 and the lower bottom plate 32. The sealing lip 326 presses the sealing ring 4 upward against the sealing step portion 313. On the one hand, the installation reliability of the sealing ring 4 is ensured, and the sealing effect is improved. On the other hand, for the foregoing embodiment in which the lower bottom plate 32 and the main body 31 are connected by threads, the flexibility of the sealing ring 4 can also be utilized to make the lower bottom plate 32 have a damping feel when being screwed into the main body 31, improving the feel experience of opening and closing the lower bottom plate 32.

[0052] As a preferred embodiment of the present application, as shown in Figure 2 and Figure 6 shown, the inner wall of the part of the main body 31 near the lower opening extends along the first direction. Based on the foregoing embodiment in which the pressure relief channel 311 penetrates the upper and lower ends of the main body 31 in the vertical direction, the inner wall of the part of the main body 31 near the lower opening also extends in the vertical direction, so the lower bottom plate 32 also enters and exits the pressure relief channel 311 in the vertical direction. For the solution in which the lower bottom plate 32 and the main body 31 are connected by threads, as the lower bottom plate 32 rotates, the side wall 322 of the lower bottom plate 32 gradually enters the pressure relief channel 311 upward to achieve assembly or gradually exits the pressure relief channel 311 downward to achieve disassembly, which is convenient and labor-saving to operate.

[0053] As a preferred embodiment of the present application, one of the main body 31 and the outer lid 1 is provided with an anti-fooling convex portion 11, and the other of the two is provided with an anti-fooling groove 314 adapted to the anti-fooling convex portion 11. As shown in Figure 7 andFigure 8 As shown, an embodiment is schematically illustrated in which the main body 31 is provided with an anti-misassembly groove 314 and the outer cover 1 is provided with an anti-misassembly protrusion 11. When the outer cover 1 and the main body 31 are assembled together, the result of aligning and mating the anti-misassembly groove 314 with the anti-misassembly protrusion 11 can represent the successful pre-assembly of the outer cover 1 and the main body 31, so as to ensure that the cup lid has a better use effect after the outer cover 1 and the main body 31 are connected.

[0054] The present application also provides a cup, including a cup body and the cup lid as described above. Among them, the main body 31 surrounds the lower bottom plate 32, an external thread (i.e., the second external thread 315) is provided on the outer wall of the main body 31, and an internal thread 312 adapted to the external thread on the outer wall is provided on the inner wall of the cup body. The cup body is not illustrated in the drawings and can be a metal cup body, a plastic cup body, a glass cup body, etc. Compared with most cup lids on the market that are threadedly connected by an outer cover and a cup body, for the cup of the present application, by using the structure that the inner plug 3 needs to enter the cup body when the cup lid is closed, the main body 31 is threadedly connected to the inner wall of the cup body, and the heat exchange path between the inner cavity of the cup body and the outside atmosphere is extended by the threaded engagement path of the two, effectively improving the sealing effect of the inner plug 3 on the inner cavity of the cup body, and thus improving the heat preservation effect. In particular, for the solution where the cup is a food thermos, the improvement of the heat preservation effect can effectively shorten the cooking time of the food ingredients.

[0055] What is not described in the present application can be realized by adopting or referring to the existing technology.

[0056] Each embodiment in this specification is described in a progressive manner. The same or similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments.

[0057] The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A cup lid for covering a cup body, characterized in that, The cup lid includes an outer lid and an inner plug with a pressure relief valve. The inner plug includes a main body and a lower bottom plate. The upper part of the main body is connected to the outer lid. The main body is provided with a pressure relief channel that penetrates through the upper and lower ends in a first direction. The lower bottom plate is detachably installed at the lower part of the main body to open or close the lower opening of the pressure relief channel.

2. The cup lid according to claim 1, wherein when the lower bottom plate is connected to the main body, the lower end surface of the lower bottom plate is flush with the lower end surface of the main body.

3. The cup lid according to claim 1, wherein the lower bottom plate includes a bottom wall and a side wall connected to the bottom wall. The side wall is provided with an external thread, and the inner wall of the pressure relief channel is provided with an internal thread. The lower bottom plate is detachably connected to the main body through the external thread and the internal thread.

4. The cup lid according to claim 3, wherein the bottom wall is provided with a screwing operation convex portion protruding downward, and the two screwing operation convex portions are symmetrically arranged on both sides of the central plane of the lower bottom plate.

5. The cup lid according to claim 3, wherein the bottom wall bulges upward and is provided with a pressure relief hole communicating with the pressure relief channel, and the pressure relief valve is installed in the pressure relief hole.

6. The cup lid according to claim 1, wherein it further includes a sealing ring. When the lower bottom plate is installed on the main body, the sealing ring forms a seal between the lower bottom plate and the main body.

7. The cup lid according to claim 6, wherein the lower bottom plate is provided with a sealing lip protruding outward in the circumferential direction, and the main body is provided with a sealing step portion extending circumferentially around the pressure relief channel. The sealing lip presses the sealing ring upward against the sealing step portion.

8. The cup lid according to any one of claims 1-7, wherein the inner wall of the part of the main body near the lower opening extends in the first direction.

9. The cup lid according to any one of claims 1-7, wherein one of the main body and the outer lid is provided with an anti-fooling convex portion, and the other of them is provided with an anti-fooling groove adapted to the anti-fooling convex portion.

10. A cup, characterized in that, It includes a cup body and the cup lid according to any one of claims 1 to 9. Among them, the main body surrounds the lower bottom plate, the outer wall of the main body is provided with an external thread, and the inner wall of the cup body is provided with an internal thread adapted to the external thread of the outer wall.

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