Cup cover and cup

Abstract

The application provides a cup cover and a cup, and relates to the technical field of drinking water appliances. The cup cover is applied to a cup body and comprises a cover body and a liquid outlet arranged in the cover body. A liquid outlet channel is arranged on the side wall of the liquid outlet. The liquid outlet channel has a first arc-shaped area and a second arc-shaped area which are continuous. In the flowing direction of the liquid, the second arc-shaped area is located upstream of the first arc-shaped area. The curvature of the first arc-shaped area is smaller than that of the second arc-shaped area. The application can improve the problems of scalding the user's hand, liquid waste and dirtying the outer wall of the cup body caused by the liquid flowing along the cup cover and even the outer wall of the cup body during the process of pouring the liquid out of the cup.

Description

Technical Field

[0001] This application relates to the field of drinking water appliance technology, and more particularly to a cup lid and a cup. Background Technology

[0002] Thermos cups (or insulated bottles) are portable and have heat preservation functions. Their vacuum insulation layer can slow down the heat loss of liquids such as water inside, so as to achieve the purpose of heat preservation and keep the temperature for a long time.

[0003] In related technologies, insulated cups typically include a cup body, a cup lid, a top cover, and a button structure. The cup lid is fixedly connected to the cup body, and the top cover is hinged to the cup lid, allowing the top cover to rotate relative to the cup body to open or close the opening at the top of the cup body. The button structure is installed in the cup lid and is used to cooperate with the top cover when the opening is closed, keeping the top cover in the closed state. However, during the use of the aforementioned insulated cups, such as when pouring water, users are prone to encountering the problem of water flowing along the outer wall of the cup body. Utility Model Content

[0004] This application provides a cup lid and a cup that can improve problems such as scalding the user's hands, wasting liquid, and getting the outer wall of the cup dirty when liquid flows out along the lid or even the outer wall of the cup during the process of pouring liquid out of the cup.

[0005] As one aspect of the embodiments of this application, this application provides a cup lid, the cup lid including a lid body and a liquid outlet disposed in the lid body, the liquid outlet having a liquid outlet channel on its side wall; the liquid outlet channel having a continuous first arc-shaped region and a second arc-shaped region; along the liquid outflow direction, the second arc-shaped region is located upstream of the first arc-shaped region; the curvature of the first arc-shaped region is less than the curvature of the second arc-shaped region.

[0006] In some embodiments, the first arcuate region is tapered along the direction of liquid outflow.

[0007] In some embodiments, the arc length of the first arc region is greater than the arc length of the second arc region.

[0008] In some embodiments, the end of the first arc-shaped region facing away from the second arc-shaped region has a tilting edge; the end of the lid facing away from the cup body has an upper edge, the tilting edge protruding relative to the upper edge, and the tilting edge smoothly transitioning to the upper edge; wherein, along the height direction of the cup lid, the tilting edge is located above the upper edge.

[0009] In some embodiments, from the end of the first arcuate region away from the second arcuate region to the second arcuate region, the outer surface of the cover has at least a portion that is gradually widening.

[0010] In some embodiments, the thickness of the portion of the cover near the tipping edge is less than the thickness of the portion of the cover near the upper edge.

[0011] In some embodiments, the lid includes an outer sidewall and an inner sidewall nested within the outer sidewall, with a space between the outer sidewall and the inner sidewall forming a space to accommodate one end of the cup body opening; the inner sidewall surrounds the liquid outlet; the inner sidewall also includes a first vertical region, the first vertical region being connected to the end of the second arcuate region away from the first arcuate region; the cup lid also includes a first sealing member, the first sealing member being fitted onto the inner sidewall, and at least a portion of the first sealing member abutting against a portion of the first vertical region to achieve a seal between the inner sidewall and the cup body.

[0012] In some embodiments, the thickness of at least a portion of the outer wall gradually decreases along the direction from the second arcuate region toward the first arcuate region.

[0013] In some embodiments, at least one first protrusion that mates with the first seal is provided on the inner sidewall.

[0014] In some embodiments, the end face of the first seal has a flared structure.

[0015] In some embodiments, the liquid outlet has a notch, which is spaced apart from the liquid outlet channel.

[0016] In some embodiments, the notch is disposed opposite to the liquid outlet channel.

[0017] In some embodiments, the ratio of the radial dimension of the second arcuate region along the cup lid to the maximum radius of the liquid outlet is b1, where b1 satisfies: 0.30≤b1≤0.46.

[0018] In some embodiments, the ratio of the radial dimension of the first arcuate region along the cup lid to the maximum radius of the liquid outlet is b2, where b2 satisfies: 0.07 ≤ b2 ≤ 0.12.

[0019] As one aspect of the embodiments of this application, this application provides a cup, including a cup body and a cup lid as described in any of the foregoing claims, wherein the cup lid is detachably and fixedly connected to the cup body.

[0020] The cup lid and cup provided in this embodiment can prevent liquid from dripping from the liquid outlet of the cup lid or flowing along the outer wall of the cup lid or even along the outer wall of the cup body during the pouring process, thereby avoiding problems such as liquid waste, dirt on the outer wall of the cup body, and hot water from the poured liquid burning the user's hands.

[0021] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0022] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0023] Figure 1 A schematic diagram showing the structure of a cup in an upright position according to an embodiment of this application. Figure 1 ;

[0024] Figure 2 A schematic diagram of the structure of a cup according to an embodiment of this application is shown. Figure 2 ;

[0025] Figure 3 The cup rim according to an embodiment of this application is shown. Figure 2 A cross-sectional view along the AA direction;

[0026] Figure 4 The cup rim is shown according to an embodiment of this application. Figure 2 A partial cross-sectional view along the AA direction;

[0027] Figure 5 A schematic diagram of the structure of a cup lid according to an embodiment of this application is shown. Figure 1 ;

[0028] Figure 6 A schematic diagram of the structure of a cup lid according to an embodiment of this application is shown. Figure 2 ;

[0029] Figure 7 The cup lid rim according to an embodiment of this application is shown. Figure 6 Cross-sectional view along the BB direction;

[0030] Figure 8 A schematic diagram of the structure of a cup lid according to an embodiment of this application is shown. Figure 3 ;

[0031] Figure 9 A schematic diagram of the structure of the first seal according to an embodiment of this application is shown. Figure 1 ;

[0032] Figure 10 A schematic diagram of the structure of the first seal according to an embodiment of this application is shown. Figure 2 ;

[0033] Figure 11 The first seal according to an embodiment of this application is shown along... Figure 10 A cross-sectional view along the CC direction;

[0034] Figure 12 This is a scene illustration of a cup.

[0035] Explanation of reference numerals in the attached drawings: 1000 - cup lid; 1100 - top cover; 1300 - lid body; 1300a - top edge; 1310 - outer side wall; 1320 - inner side wall; 1320a - liquid outlet; 1320b - liquid outlet channel; 1321 - first arc-shaped area; 1321a - tilting edge; 1322 - second arc-shaped area; 1323 - first vertical area; 1324 - first protrusion; 1325 - notch; 1510 - button structure; 1700 - first sealing element; 1701 - lower end face; 3000 - cup body; 3100 - outer cup body; 3200 - inner cup body; 3210 - second vertical area; 3220 - diameter changing area; O - central axis. Detailed Implementation

[0036] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0037] like Figures 1 to 7 As shown, this embodiment provides a cup, including: a cup body 3000 and a cup lid 1000. The cup includes, but is not limited to, insulated cups, sports water bottles, and everyday drinking cups.

[0038] The cup body 3000 is roughly hollow and cylindrical, with a spout at the top. When the cup is a thermos, at least a portion of the cup body 3000 employs a double-layer structure, with a vacuum insulation layer formed between the two layers.

[0039] A lid 1000 is installed at the upper rim of a cup body 3000, with the central axis of the lid 1000 coinciding with the central axis of the cup body 3000. The lid 1000 includes a lid body 1300, which guides the liquid flowing out of the cup body 3000. The lid body 1300 is detachably fixed to the cup body 3000, for example, by a threaded connection.

[0040] In one example, the cup lid 1000 may also include a top cover 1100, which is hinged to the lid body 1300 via a hinge structure. The top cover 1100 can rotate relative to the lid body 1300 between a closed state and an open state. When the top cover 1100 is in the closed state, it can close the mouth of the cup body 3000. When the top cover 1100 is in the open state, it can open the mouth of the cup body 3000.

[0041] The cover 1300 is equipped with a button structure 1510, which is used to engage with the upper cover 1100 when it is in the closed state, so as to keep the upper cover 1100 in the closed state. The button structure 1510 and the hinge structure are located on opposite sides of the cover 1300.

[0042] like Figure 12 As shown in the diagram on the right, when the cup is tilted, the lid 1000 is also tilted. When the lid 1000 is tilted, the button structure 1510 is lower than the hinge structure. The specific structure and implementation process of the button structure 1510 and the hinge structure can be set according to actual needs. Figure 12 Taking the diagram on the right as an example, when the lid 1000 is tilted, the liquid flows out to the left. Figure 12 (Left side).

[0043] For ease of description, the side of the lid 1300 with the button structure 1510 is designated as the front side, and the side of the lid 1300 corresponding to the hinge structure is designated as the rear side. The direction of the cup body 3000 towards the upper cover 1100 is referred to as the top (or top), and the direction of the cup body 3000 away from the upper cover 1100 is referred to as the bottom (or bottom). The direction from top to bottom is the vertical direction, and the other two directions are the left and right sides, respectively. Among these, the three directions from front to back, from top to bottom, and from left to right are perpendicular to each other.

[0044] The cup lid 1000 also includes a liquid outlet 1320a disposed within the lid body 1300, which communicates with a cavity within the cup body 3000 for holding liquid. The lid body 1300 may have a through-hole extending axially along the lid 1000, forming the liquid outlet 1320a. A liquid outlet channel 1320b is provided on the side wall of the liquid outlet 1320a. The liquid outlet channel 1320b guides the liquid to flow out of the cup.

[0045] The liquid outlet channel 1320b has a continuous first arc-shaped region 1321 and a second arc-shaped region 1322. Along the liquid outflow direction (i.e., the direction in which the liquid flows out from the outlet of the cup body), the second arc-shaped region 1322 is located upstream of the first arc-shaped region 1321. When the cup is placed vertically, the second arc-shaped region 1322 is located below the first arc-shaped region 1321.

[0046] like Figure 7 , Figure 8 and Figure 12 As shown, the first arc-shaped region 1321 gradually narrows along the direction of liquid outflow. That is, along the direction in which the liquid flows out from inside the cup through the outlet, the area of ​​at least a portion of the cross-sectional area of ​​the first arc-shaped region 1321 gradually decreases, wherein the cross-section is a section perpendicular to the axial direction of the cup lid 1000.

[0047] Along the axial direction of the cup lid 1000, the first arc-shaped region 1321 and the second arc-shaped region 1322 are arc-shaped, specifically they can be circular arcs or elliptical arcs. The second arc-shaped region 1322 is smoothly connected to the first arc-shaped region 1321.

[0048] The curvature of the first arc-shaped region 1321 is less than the curvature of the second arc-shaped region 1322. That is, the degree of curvature of the first arc-shaped region 1321 is less than the degree of curvature of the second arc-shaped region 1322. For example, when both the first arc-shaped region 1321 and the second arc-shaped region 1322 are circular arcs, the radius corresponding to the first arc-shaped region 1321 is greater than the radius corresponding to the second arc-shaped region 1322.

[0049] Specifically, such as Figure 7 As shown, in the cross-sectional view of the cup lid, the curvature of the section arc corresponding to the first arc region 1321 is less than the curvature of the section arc corresponding to the second arc region 1322.

[0050] In one possible implementation, the central axis O of the lid 1300 coincides with the central axis O of the cup lid 1000. When the cup lid 1000 is cut by any cutting plane passing through the central axis O of the lid 1300 and through the first arc region 1321 and the second arc region 1322, the curvature of the cutting arc corresponding to the first arc region 1321 is less than the curvature of the cutting arc corresponding to the second arc region 1322.

[0051] The greater the curvature of the second arc-shaped region 1322, the more pronounced its bending. When pouring liquid, the second arc-shaped region 1322 provides a greater drop (i.e., elevation difference), allowing more gravitational potential energy to be converted into kinetic energy, resulting in greater acceleration of the fluid. The curvature of the second arc-shaped region 1322 can be specifically set according to actual needs.

[0052] In this embodiment, by configuring the first arc-shaped region 1321 and the second arc-shaped region 1322 as described above, when the cup lid 1000 is in a tilted state, for example, when the central axis O of the cup lid 1000 is parallel to the horizontal plane or when the cup lid 1000 is below the horizontal plane, the second arc-shaped region 1322 can provide a large drop, so that the liquid flowing through the second arc-shaped region 1322 gains acceleration. The liquid leaving the second arc-shaped region 1322 can flow into the first arc-shaped region 1321 at a relatively large speed, and the liquid leaving the first arc-shaped region 1321 performs parabolic motion, such as projectile motion, with a relatively large initial velocity. In this way, the liquid continues to move in a straight line in the horizontal direction due to inertia, thereby preventing the liquid from dripping along the lid 1300 or flowing along the outside of the lid 1300 or even along the outside of the cup body, thus avoiding problems such as liquid waste, dirt on the outer wall of the cup body, and hot water from being poured out and burning the user's hands.

[0053] In some embodiments, such as Figures 4 to 7 As shown, the arc length of the first arc-shaped region 1321 is less than the arc length of the second arc-shaped region 1322. Specifically, on a cross-section passing through the central axis O of the cover 1300, the arc length of the first arc-shaped region 1321 is less than the arc length of the second arc-shaped region 1322. Optionally, since the first arc-shaped region 1321 is tapered, therefore... Figure 7 As shown, on a section of the cover 1300 along the central axis O, the arc lengths of the first arc region 1321 and the second arc region 1322 are related as described above. Thus, the second arc region 1322 provides a relatively long flow path, allowing the liquid to move for a longer period. The acceleration effect of gravity on the fluid lasts longer, resulting in a greater increase in fluid velocity.

[0054] Optionally, when the cup lid 1000 is cut by any cutting plane that passes through the central axis O of the lid body 1300 and passes through the first arc region 1321 and the second arc region 1322, the arc length of the first arc region 1321 is less than the arc length of the second arc region 1322.

[0055] In some embodiments, the end of the first arcuate region 1321 opposite to the second arcuate region 1322 has a pouring edge 1321a, and the end of the lid 1300 opposite to the cup body 3000 has an upper edge 1300a. The pouring edge 1321a protrudes relative to the upper edge 1300a, and the pouring edge 1321a is smoothly connected to the upper edge. In the height direction of the lid 1300, the pouring edge 1321a is located above the upper edge 1300a.

[0056] Among them, the cup lid is at position 1000 Figure 4 or Figure 7In the vertical position, the tilting edge 1321a protrudes upward and outward compared to the upper edge 1300a. When the lid 1000 is tilted, the tilting edge 1321a is located below the upper edge 1300a.

[0057] For example, such as Figure 4 As shown, along the direction towards the central axis O of the lid 1000, the distance between the pouring edge 1321a of the first arc-shaped region 1321 and the lower end face of the lid 1300 gradually decreases; that is, the height of the pouring edge 1321a relative to the lower end face of the lid 1300 gradually decreases. The upper edge 1300a of the lid 1300 can be set at the same height. In this embodiment, through the above arrangement, the outflow channel can provide a relatively long flow path, which facilitates the reasonable arrangement of the second arc-shaped region 1322 and the first arc-shaped region 1321, thereby achieving the purpose of accelerating and guiding the liquid.

[0058] In some embodiments, such as Figure 7 As shown, the ratio b1 of the radial dimension L1 of the second arc-shaped region 1322 along the cup lid 1000 to the maximum radius R of the outlet 1320a satisfies: 0.30 ≤ b1 ≤ 0.46. Here, the maximum radius R of the outlet 1320a refers to the point in the outlet 1320a that is furthest from the cup body 3000 (e.g., ...). Figure 7 The straight-line distance between the highest point in the middle (the highest point in the middle) and the central axis O. For example, b1 can be 0.30 or 0.32 or 0.34 or 0.36 or 0.38 or 0.40 or 0.42 or 0.44 or 0.46, or a ratio between any two of the above.

[0059] It is understandable that the cross-section obtained by cutting along the central axis O of the cup lid 1000 and passing through the highest point of the pouring edge 1321a (as shown in the image) is... Figure 7 As shown in the figure, L1 and R satisfy the above relationship.

[0060] In this embodiment, by reasonably setting the second arc-shaped region 1322, the second arc-shaped region 1322 can provide a large drop, so that the liquid flowing through the second arc-shaped region 1322 can obtain a large acceleration.

[0061] In some examples, such as Figure 7 As shown, the ratio b2 of the radial dimension L2 of the first arc-shaped region 1321 along the cup lid 1000 to the maximum radius R of the outlet 1320a satisfies: 0.07 ≤ b2 ≤ 0.12. For example, b2 can be any ratio between 0.07, 0.08, 0.09, 0.10, 0.11, 0.12, or any two of the above.

[0062] It is understandable that the cross-section obtained by cutting along the central axis O of the cup lid 1000 and passing through the highest point of the pouring edge 1321a (as shown in the image) is... Figure 7 In the diagram shown, L2 and R satisfy the above relationship.

[0063] In this embodiment, by reasonably setting the first arc-shaped region 1321, the first arc-shaped region 1321 can provide a relatively gentle flow path for the liquid, and the first arc-shaped region 1321 can guide and control the liquid to continue to flow in the outflow direction.

[0064] In some embodiments, from the end of the first arcuate region 1321 away from the second arcuate region 1322 to the second arcuate region 1322 (i.e., along the top-to-bottom direction), the outer surface of the cover 1300 is at least partially widening.

[0065] In this embodiment, the above-mentioned design helps to improve the smoothness of the cup lid 1000's lines, making it easier for users to grip or twist it. It also helps to lower the center of gravity of the cup lid 1000, thereby lowering the center of gravity of the cup and improving the stability of the cup when it is placed.

[0066] In some embodiments, the thickness of at least a portion of the cover 1300 gradually decreases along the direction from the second arcuate region 1322 toward the first arcuate region 1311 (i.e., along the direction from bottom to top), that is, the distance between the outer and inner surfaces of the cover 1300 gradually decreases.

[0067] In this embodiment, the above-mentioned settings can save material usage while meeting usage requirements, avoid top-heavy design, and improve balance when holding and stability when placed.

[0068] In some embodiments, the cover 1300 includes an outer sidewall 1310 and an inner sidewall 1320 nested within the outer sidewall 1310. A space is formed between the outer sidewall 1310 and the inner sidewall 1320 to accommodate one end of the opening of the cup body 3000.

[0069] Both the outer sidewall 1310 and the inner sidewall 1320 are annular structures. The outer sidewall 1310 and the inner sidewall 1320 are coaxially arranged, and the upper part of the outer sidewall 1310 is connected to the inner sidewall 1320. The outer sidewall 1310 can be integrally formed with the inner sidewall 1320.

[0070] The inner wall 1320 extends from the mouth of the cup into the body 3000 to guide the liquid inside the body 3000 out.

[0071] The inner wall 1320 forms the liquid outlet 1320a. A first arc-shaped region 1321 and a second arc-shaped region 1322 are provided on the inner surface of the inner wall 1320. For example, the portion of the inner wall 1320 with the second arc-shaped region 1322 can be a part of a sphere; the portion of the inner wall 1320 with the first arc-shaped region 1321 can also be a part of a sphere.

[0072] Optionally, the thickness of at least a portion of the outer wall 1310 gradually decreases along the direction from the second arcuate region 1322 toward the first arcuate region 1311 (i.e., along the direction from bottom to top).

[0073] For example, at least a portion of the inner surface of the outer side wall 1310 may be vertical. The inner surface of the outer side wall 1310 is provided with an internal thread, and the upper part of the cup body 3000 is provided with an external thread. The internal thread of the outer side wall 1310 engages with the external thread of the cup body 3000, thereby fixing the lid 1300 to the cup body 3000. At least a portion of the outer surface of the outer side wall 1310 may be inclined or arc-shaped; for example, a portion of the outer surface of the outer side wall 1310 is arc-shaped, and along the upward direction, the distance between the arc-shaped portion of the outer side wall 1310 and the central axis O of the lid 1000 gradually decreases, and the distance between the outer surface and the inner surface of the outer side wall 1310 also gradually decreases. The area of ​​the outer side wall 1310 with the internal thread is located in the portion where the thickness of the outer side wall 1310 gradually increases. This strengthens the portion of the outer wall 1310 with internal threads, preventing thread deformation or cracking due to external pressure or long-term use. It also better withstands the torque during screwing, slows down wear, and improves the durability of the cup lid 1000.

[0074] In some embodiments, the cup lid 1000 further includes a first sealing element 1700, which is fitted onto the inner sidewall 1320, or in other words, the inner sidewall 1320 is inserted into the first sealing element 1700. The first sealing element 1700 abuts against the outer side of the inner sidewall 1320 to achieve a seal between the inner sidewall 1320 and the cup body 3000, preventing liquid in the cup body 3000 from leaking from the mating gap between the lid 1300 and the cup body 3000.

[0075] For example, the inner wall 1320 also includes a first vertical region 1323, which is connected to the end of the second arcuate region 1322 away from the first arcuate region 1321, i.e., the first vertical region 1323 is located below the second arcuate region 1322. At least a portion of the first seal 1700 abuts against the portion of the outer surface of the inner wall 1320 corresponding to the first vertical region 1323. With this configuration, the first seal 1700 has a larger contact area with the inner wall 1320 and the cup body 3000, which not only improves the installation reliability of the first seal 1700 but also provides a longer sealing path, thus improving the sealing effect.

[0076] The first seal 1700 is annular, and its shape is adapted to the shape of the space between the inner wall 1320 and the cup body 3000. For example, at least part of the side of the first seal 1700 facing the inner wall 1320 is an arc-shaped surface or a slope, and this part of the side matches the part of the inner wall 1320 corresponding to the second arc-shaped region 1322.

[0077] In some embodiments, the outer surface of the inner sidewall 1320 is provided with one or more first protrusions 1324, at least one of which is located near the lower end of the inner sidewall 1320. The first protrusions 1324 are used to abut against the first seal 1700, causing a corresponding portion of the first seal 1700 to deform. Thus, a predetermined interference amount is generated between the first seal 1700 and the first protrusions 1324, effectively preventing the first seal 1700 from sliding downwards, improving the installation reliability of the first seal 1700, and enhancing the sealing effect between the inner sidewall 1320 and the first seal 1700.

[0078] Optionally, the first protrusion 1324 may be annular, as will be illustrated below. In other examples, the first protrusion 1324 may be hemispherical, columnar, or conical, or other block-like shapes, with at least two first protrusions 1324 distributed circumferentially along the same circumference.

[0079] The first protrusion 1324 may be single, and is disposed near the lower end of the inner wall 1320. Alternatively, there may be multiple first protrusions 1324, which are spaced apart along the axial direction of the cup lid 1000; wherein the multiple first protrusions 1324 are respectively connected to the portion of the inner wall 1320 corresponding to the first vertical region 1323, or wherein at least one first protrusion 1324 is connected to the outer surface of the inner wall 1320 corresponding to the first vertical region 1323, and wherein at least one first protrusion 1324 is connected to the outer surface of the inner wall 1320 corresponding to the second arcuate region 1322.

[0080] like Figure 4 , Figures 9 to 11 As shown, the lower end face 1701 of the first seal 1700 has a flared structure. For example, the lower edge of the first seal 1700 is lower than the lower edge of the inner sidewall 1320, the lower end face 1701 of the first seal 1700 is inclined, and along the direction toward the central axis O of the cup lid 1000, the lower end face 1701 of the first seal 1700 gradually tilts upward to guide the liquid in the cup body 3000 to flow to the inner side of the inner sidewall 1320.

[0081] The lower end face 1701 of the first seal 1700 can extend inward to be flush with the inner side surface of the inner wall 1320, or the lower end face 1701 of the first seal 1700 can extend inward to have a predetermined distance between it and the lower edge of the inner side surface of the inner wall 1320. It is understood that the lower end face 1701 of the first seal 1700 will not extend inward beyond the inner side surface of the inner wall 1320, so as not to affect the flow of liquid in the cup body 3000 to the outlet 1320a formed by the inner wall 1320.

[0082] Optionally, the first seal 1700 may also cover at least a portion of the lower end face of the inner sidewall 1320 to extend the sealing path between the first seal 1700 and the inner sidewall 1320 and improve the sealing effect. For example, the inner side of the first seal 1700 is provided with a second protrusion, which protrudes inward and can be smoothly connected with the lower end face 1701 of the first seal 1700; the second protrusion can abut against the lower end of the inner sidewall 1320.

[0083] like Figure 3 and Figure 4 As shown, the cup body 3000 includes an inner cup body 3200 and an outer cup body 3100. The inner cup body 3200 is connected to the outer cup body 3100, and a vacuum layer is formed between the inner cup body 3200 and the outer cup body 3100 to achieve the effect of heat preservation or cold preservation.

[0084] The inner cup body 3200 has a second vertical region 3210 and a variable diameter region 3220 near its upper end. The variable diameter region 3220 is connected to the lower end of the second vertical region 3210. The inner diameter of the variable diameter region 3220 gradually decreases from top to bottom. The inner cup body 3200 may also include a third vertical region, an expansion region, and a fourth vertical region distributed sequentially from the upper end to the lower end of the cup body 3000. The third vertical region is connected to the lower end of the variable diameter region 3220. The inner diameter of the expansion region gradually increases from the upper end to the lower end of the cup body 3000. With these features, the first seal 1700 can extend upwards to mate with the variable diameter region 3220. The variable diameter region 3220 provides support for the first seal 1700, thereby further improving the installation reliability of the first seal 1700.

[0085] The first sealing element 1700 may include an upper sealing ring and a lower sealing ring connected to each other. A portion of the inner surface of the upper sealing ring is vertical, and this portion abuts against the portion of the inner wall 1320 corresponding to the first vertical region 1323. The inner diameter of the vertical portion of the inner surface of the upper sealing ring is smaller than the inner diameter of the arc-shaped or inclined portion, forming a stepped surface between the two portions. Optionally, the connection between the stepped surface and the vertical portion of the inner wall of the upper sealing ring can abut against the inner wall 1320 and deform to improve sealing reliability.

[0086] The upper part of the outer side of the upper sealing ring is roughly vertical and matches the second vertical region 3210 of the inner cup 3200; the lower part of the outer side of the upper sealing ring is roughly inclined. Optionally, the connection between the upper and lower parts of the upper sealing ring can abut against the variable diameter region 3220 of the inner cup 3200 and deform to improve sealing reliability.

[0087] The lower sealing ring is roughly vertical. The inner side of the lower sealing ring abuts against the portion of the inner sidewall 1320 corresponding to the first vertical region 1323, and the outer side of the lower sealing ring abuts against the third vertical region of the inner cup body 3200.

[0088] In some embodiments, along the axial direction of the cup lid 1000, the dimension L3 of the first arcuate region 1321 along the axial direction of the cup lid 1000 is greater than the dimension L4 of the second arcuate region 1322 along the axial direction of the cup lid 1000. In this way, the first arcuate region 1321 can provide a relatively long flow path to guide and control the liquid's forward flow tendency, while also ensuring that the dimensions of the lid 1300 along the axial direction of the cup lid 1000 are reasonable and do not occupy a large space in the cup body 3000.

[0089] Optionally, the ratio b3 of L4 to L3 satisfies: 0.61 ≤ b7 ≤ 0.92. For example, b3 can be 0.61 or 0.64 or 0.67 or 0.70 or 0.73 or 0.77 or 0.80 or 0.83 or 0.86 or 0.89 or 0.92, or any two of the above.

[0090] It is understandable that the cross-section obtained by cutting along the central axis O of the cup lid 1000 and passing through the highest point of the pouring edge 1321a (as shown in the image) is... Figure 7 In the diagram shown, L3 and L4 satisfy the above relationship.

[0091] In some embodiments, such as Figure 5 and Figure 6As shown, the liquid outlet 1320a has a notch 1325, which is spaced apart from the liquid outlet channel 1320b. Specifically, the notch 1325 is configured to be higher than the liquid outlet channel 1320b when the cup lid 1000 is in the tilted state. In the scenario of pouring liquid, the notch 1325 can play a role in balancing air pressure.

[0092] The notch 1325 can be semi-circular, U-shaped, or C-shaped, and can be set according to actual needs.

[0093] Optionally, the notch 1325 is positioned opposite to the liquid outlet channel 1320b to prevent the notch 1325 from being covered by liquid during liquid dispensing. That is, the notch 1325 and the liquid outlet channel 1320b are located on opposite sides of the liquid outlet 1320a. For example, the liquid outlet channel 1320b is positioned near the button structure 1510, and the notch 1325 is positioned near the hinge structure.

[0094] Other components of the cup in the above embodiments can be derived from various technical solutions known now and in the future to those skilled in the art, and will not be described in detail here.

[0095] In the description of this specification, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "vertical," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 application.

[0096] 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 one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0097] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0098] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being 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 includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0099] The foregoing application provides many different implementations or examples for implementing different structures of this application. To simplify the disclosure of this application, the components and arrangements of specific examples are described above. Of course, these are merely examples and are not intended to limit this application. Furthermore, reference numerals and / or reference letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0100] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A cup lid, said cup lid being applied to a cup body, characterized in that, The cup lid includes a lid body and a liquid outlet disposed within the lid body; A liquid outlet channel is provided on the side wall of the liquid outlet; the liquid outlet channel has a continuous first arc-shaped area and a second arc-shaped area; Along the direction of liquid outflow, the second arc-shaped region is located upstream of the first arc-shaped region; the curvature of the first arc-shaped region is less than the curvature of the second arc-shaped region.

2. The cup lid according to claim 1, characterized in that, Along the direction of liquid outflow, the first arc-shaped region gradually narrows.

3. The cup lid according to claim 1, characterized in that, The arc length of the first arc region is greater than the arc length of the second arc region.

4. The cup lid according to claim 1, characterized in that, The end of the first arc-shaped region that faces away from the second arc-shaped region has a sloping edge; The end of the lid that faces away from the cup body has an upper edge, the pouring edge protrudes from the upper edge, and the pouring edge smoothly transitions to the upper edge; Wherein, along the height direction of the cup lid, the pouring edge is located above the upper edge.

5. The cup lid according to claim 4, characterized in that, From the end of the first arc-shaped region away from the second arc-shaped region to the second arc-shaped region, at least part of the outer surface of the cover is gradually widening.

6. The cup lid according to claim 4, characterized in that, The thickness of the portion of the cover near the tipping edge is less than the thickness of the portion of the cover near the upper edge.

7. The cup lid according to claim 1, characterized in that, The lid includes an outer wall and an inner wall nested within the outer wall, with a space between the outer wall and the inner wall forming a space to accommodate one end of the cup opening; The inner sidewall forms the liquid outlet; The inner sidewall also includes a first vertical region, which is connected to the end of the second arc-shaped region away from the first arc-shaped region; The cup lid also includes a first sealing element, which is fitted onto the inner sidewall, and at least a portion of the first sealing element abuts against the portion of the inner sidewall located in the first vertical region to achieve a seal between the inner sidewall and the cup body.

8. The cup lid according to claim 7, characterized in that, Along the direction from the second arcuate region toward the first arcuate region, the thickness of at least a portion of the outer wall gradually decreases; And / or, the inner sidewall is provided with at least one first protrusion that mates with the first seal.

9. The cup lid according to claim 7, characterized in that, The end face of the first seal has a flared structure.

10. The cup lid according to claim 1, characterized in that, The liquid outlet has a notch, and the notch is arranged at intervals with the liquid outlet channel.

11. The cup lid according to claim 10, characterized in that, The notch is positioned opposite to the liquid outlet channel.

12. The cup lid according to any one of claims 1 to 11, characterized in that, The ratio of the radial dimension of the second arc-shaped region along the cup lid to the maximum radius of the liquid outlet is b1, where b1 satisfies: 0.30≤b1≤0.

46.

13. The cup lid according to any one of claims 1 to 11, characterized in that, The ratio of the radial dimension of the first arc-shaped region along the cup lid to the maximum radius of the liquid outlet is b2, where b2 satisfies: 0.07≤b2≤0.

12.

14. A cup, characterized in that, It includes a cup body and a cup lid as described in any one of claims 1 to 13, wherein the cup lid is detachably and fixedly connected to the cup body.

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