A cup lid and a multi-functional water cup
By using a rotating connection between the locking and limiting components, combined with an inclined linkage mechanism and sealing silicone, the problem of inconvenient operation and large space occupation of traditional cup lids is solved, achieving a convenient and multifunctional water cup user experience, and enhancing sealing and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YONGKANG JIURUI IND & TRADE CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-05-26
Smart Images

Figure CN224268896U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water cup technology, and in particular to a cup lid and a multifunctional water cup. Background Technology
[0002] Water bottles are widely used in daily life, especially sports water bottles. To improve convenience, traditional screw-on lids are less convenient and generally difficult to operate with one hand. Later, a series of screwless cups emerged, typically including two methods: those using elastic sealant to fold and telescopically lock the lid at the cup opening, and those using a locking mechanism that telescopically locks the lid inside the cup opening. The latter method uses a telescopic locking mechanism that moves laterally, requiring complex structures such as guide rails and sliders, occupying a large space and hindering further cup design. This invention provides a water bottle with a rotating locking mechanism for easy opening and closing, occupying less space, and further incorporating a direct drinking spout and straw spout, providing multiple drinking methods while achieving one-button opening. Utility Model Content
[0003] This utility model provides a cup lid and a multifunctional water cup to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A cup lid includes a switch, a locking member, and a limiting member. The locking member is rotatably connected to the limiting member and is connected to a first spring. The locking member can extend into a stepped portion of the inner wall of the cup opening to lock the cup lid. The switch and the limiting member are slidably connected. Pressing down on the switch causes the locking member to rotate inward to unlock the cup lid. Releasing the pressure causes the first spring to rotate the locking member outward to lock the cup lid.
[0006] Furthermore, the limiting member includes an upper limiting member and a lower limiting member, which are fixedly connected. The cup lid also includes a movable member, which is annular in shape and includes a horizontal section. A vertical section is provided on the inner side of the horizontal section. The locking member and the movable member are located between the upper limiting member and the lower limiting member. A second spring is provided between the horizontal section and the upper limiting member. The lower end of the vertical section abuts against the locking member.
[0007] Furthermore, the cup lid also includes a straw opening and a drinking spout. The upper end of the upper limiting member is provided with a top cover, and the top cover is provided with a groove that runs through both sides. The switch, straw opening, and drinking spout are all located in the groove. The switch is located in the middle of the groove, and the straw opening and drinking spout are located at both ends of the groove.
[0008] Furthermore, the groove is also provided with a drinking spout cover. The end of the cover away from the drinking spout is hinged to the upper cover. The cover has a slider that can slide inside the cover. The slider has a push block that passes through the cover. The lower end of the slider has a barb. The upper cover has a fixing hole. The barb can pass into the fixing hole to fix the cover on the groove. Moving the push block can disengage the barb from the fixing hole. A third spring is also provided between the slider and the cover. When the slider is pushed outward, the third spring is compressed.
[0009] Furthermore, the straw is located inside the straw opening, the straw extends out from the groove, the straw is provided with a straw cap, the straw cap is connected to a cap strap, and the other end of the cap strap is connected to the top cover.
[0010] Furthermore, a protrusion is provided below the switch component, the protrusion has a first inclined surface, the locking component has a second inclined surface corresponding to the first inclined surface, the locking component has a square hole, and the second inclined surface is located inside the square hole on the inner side.
[0011] Furthermore, there are four protrusions and four locking members. Two of the locking members are connected to the limiting member at the same point, and the other two locking members are also connected to the limiting member at the same point. The four locking members have the same spacing angle and spacing distance. The thickness of the locking member at the connection point with the limiting member is half that of the other parts. The four locking members are all located at the same horizontal height.
[0012] Furthermore, the lower limit component is provided with an exhaust hole, a sealing plug at the lower end of the exhaust hole, and a vertical rod at the upper end of the exhaust hole. The vertical rod passes through the exhaust hole and is connected to the sealing plug. A fourth spring is sleeved on the vertical rod. The upper end of the fourth spring is fixed to the connecting rod, and the lower end is fixed to the upper end of the exhaust hole. The vertical rod is located below the switch component. The first inclined surface and the second inclined surface are spaced apart by a distance. When the switch component is pressed down, the switch component first pushes the vertical rod and the sealing plug to open the exhaust hole. The lower limit component is also provided with a fourth spring. The fourth spring is sleeved on the outside of the exhaust hole. A sliding ring is connected to the upper end of the fourth spring. The switch component abuts against the sliding ring. A limit crossbar is connected to the lower outer end of the sliding ring.
[0013] A multifunctional water cup includes a cup body and any of the cup lids described above. A plastic part is provided on the inner side of the cup mouth of the cup body. The plastic part is fixedly connected to the cup body and has a stepped portion.
[0014] Furthermore, the bottom of the cup lid is provided with sealing silicone, which is sleeved on the outside of the bottom end of the lower limiting member. The sealing silicone has a notch, and the cup body has an inclined surface with an inner diameter that decreases from top to bottom. When the cup lid is closed, the sealing silicone comes into contact with the inclined surface.
[0015] The outstanding and beneficial technical effects of this utility model compared to the prior art are as follows:
[0016] Firstly, by changing the locking mechanism from a traditional sliding connection to a rotary connection, the contact surface becomes a low-friction rotation, resulting in less wear over long-term use, smaller size, simpler structure, easier installation, and lower production costs. Secondly, by incorporating a moving component, the outward rotation of the locking mechanism is restricted when opening the lid, ensuring that even if the lid remains unlocked, locking the lid only requires pressing it onto the rim of the cup. This design ensures structural stability, convenient operation, and suitability for widespread use. Thirdly, while achieving one-button opening, a direct drinking spout and a straw spout are designed, integrating multiple drinking methods and diversifying the cup's functions. Fourthly, the spacing between the first and second inclined surfaces allows the vent to open before the lid is opened, ensuring consistent internal and external pressure and preventing explosions due to large pressure differences when opening the lid. Fifthly, the notch in the sealing silicone and the inclined surface inside the cup allow for more inward deformation of the silicone outside the notch when in contact with the inclined surface, ensuring a complete fit between the silicone and the inclined surface, increasing the contact area, and enhancing the sealing and heat preservation effects of the lid.
[0017] To make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0019] Appendix Figure 1 Side view of the cup lid of this utility model Figure 1 ;
[0020] Appendix Figure 2 Appendix Figure 1 A schematic cross-sectional view of section AA;
[0021] Appendix Figure 3 : A three-dimensional schematic diagram of the water cup of this utility model;
[0022] Appendix Figure 4 : An exploded view of the cup lid used in this utility model;
[0023] Appendix Figure 5 Side view of the cup lid of this utility model Figure 2 ;
[0024] Appendix Figure 6 Appendix Figure 5 A schematic cross-sectional view of section BB;
[0025] Appendix Figure 7 Appendix Figure 6 An enlarged view of point A;
[0026] Appendix Figure 8 Side view of the cup lid of this utility model Figure 3 ;
[0027] Appendix Figure 9 Appendix Figure 8 A schematic cross-sectional view of section BB;
[0028] Appendix Figure 10 This utility model uses a three-dimensional schematic diagram of the top cover;
[0029] Appendix Figure 11 : A three-dimensional schematic diagram of the snap-on cover of this utility model;
[0030] Appendix Figure 12 : A three-dimensional schematic diagram of the switch component used in this utility model;
[0031] Appendix Figure 13 : A schematic diagram of the internal structure of the cup lid of this utility model;
[0032] Appendix Figure 14 : A schematic diagram of the structure of the locking component and the upper limiting component of this utility model;
[0033] Appendix Figure 15 : A schematic diagram of the structure of the locking component and the lower limiting component of this utility model;
[0034] Appendix Figure 16 : Schematic diagram of the internal structure of the exhaust port of this utility model. Detailed Implementation
[0035] In the description of this utility model, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to the other element.
[0036] In the description of this utility model, it should be noted that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.
[0037] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0038] A type of cup lid, such as Figure 1-16 As shown, the device includes a switch 1, a locking component 2, and a limiting component. The locking component 2 is rotatably connected to the limiting component and is connected to a first spring 23. The locking component 2 can extend into the stepped portion of the inner wall of the cup opening to lock the cup lid. The switch 1 is slidably connected to the limiting component. Pressing down on the switch 1 causes the locking component 2 to rotate inward, thereby unlocking the cup lid. Releasing the downward pressure causes the first spring 23 to rotate the locking component 2 outward, thereby locking the cup lid.
[0039] The switch element 1 and the locking element 2 can be linked by a gear and rack mechanism, i.e., the switch element 1 has an inclined rack below it, and the locking element 2 has a gear; or the switch element 1 has a gear below it, and the locking element 2 has an inclined rack. Pressing down on the switch element 1 causes the locking element 2 to rotate under a lateral force.
[0040] Preferred, such as Figure 2As shown, in this embodiment, the switch 1 and the locking member 2 are linked by inclined surfaces. The switch 1 has a protrusion 11 at its lower end, and the protrusion 11 has a first inclined surface 12. The locking member 2 has a second inclined surface 22 corresponding to the first inclined surface 12. One end of the first spring 23 is fixed to the limiting member, and the other end is fixed to the locking member 2. The locking member 2 has a square hole 21, and the second inclined surface 22 is located inside the square hole 21 on its inner side. When the switch 1 is pressed down, the protrusion 11 enters the square hole 21 of the locking member 2, and the first inclined surface 12 pushes the second inclined surface 22, causing the locking member 2 to rotate inward around the hinge point and compress the spring. The design of the square hole 21 is more conducive to structural stability during linkage.
[0041] like Figure 12-14 As shown, there are four protrusions 11 and four locking members 2. Two of the locking members 2 have connection points with the limiting member at the same location, and the other two locking members 2 also have connection points at the same location. The four locking members 2 are spaced at the same angle and distance. The thickness of the locking member 2 at the connection point with the limiting member is half that of the other parts, and all four locking members 2 are located at the same horizontal height.
[0042] like Figure 2 , 4 As shown in Figures 13-15, the limiting member includes an upper limiting member 31 and a lower limiting member 32. The cup lid also includes a movable member 4, which is annular in shape. The movable member 4 includes a horizontal section 41, and a vertical section 42 is provided on the inner side of the horizontal section 41. The locking member 2 and the movable member 4 are located between the upper limiting member 31 and the lower limiting member 32. A second spring 43 is provided between the horizontal section 41 and the upper limiting member 31. The lower end of the vertical section 42 abuts against the locking member 2. The upper limiting member 31 is recessed in the middle, and the annular moving member 4 is sleeved on the outside of the upper limiting member 31. The outer diameter of the moving member 4 is consistent with the outer diameter of the upper limiting member 31. When the locking member 2 rotates inward, the lower part of the moving member 4 loses the restriction of the locking member 2 and moves downward under the action of the second spring 43. The vertical section 42 is at the same level as the locking member 2 and restricts the locking member 2 from rotating outward, keeping the cup lid in an unlocked state. When it is necessary to lock the lid, the solid presses down on the cup lid, and the horizontal part of the moving member 4 abuts against the cup mouth and moves upward relative to the locking member 2. The locking member 2 moves down into the cup mouth, and the moving member 4 no longer restricts the external rotation of the locking member 2. Under the action of the first spring 23, the locking member 2 rotates outward to complete the locking of the lid. When the cover is locked, the moving part 4 moves upward relative to the second spring 43, while the locking part 2 rotates outward again to the bottom of the moving part 4 to restrict the downward movement of the moving part 4, so that the second spring 43 is in a compressed state, providing power for the downward movement of the moving part 4 when the cover is opened.
[0043] like Figure 5-11As shown, the cup lid also includes a straw opening 5 and a drinking spout 6. The upper end of the upper limiting member 31 is provided with an upper cover 7. The upper cover 7 has a groove 71 extending through both sides. The switch member 1, the straw opening 5, and the drinking spout 6 are located within the groove 71. The switch member 1 is located in the middle of the groove 71, and the straw opening 5 and the drinking spout 6 are located at opposite ends of the groove 71. The groove 71 also has a drinking spout 6 cover 61. The end of the cover 61 away from the drinking spout 6 is hinged to the upper cover 7. The cover 61 has a slider 62 that can slide inside it. The slider 62 has a push block 621 that passes through the cover 61. The lower end of the slider 62 has a barb 622. The upper cover 7 has a fixing hole. The barb 622 can be inserted into the fixing hole to fix the cover 61 onto the groove 71. Moving the push block 621 can disengage the barb 622 from the fixing hole. The upper cover 7 has a protrusion within the groove 71, and the fixing hole is located on the outside of the protrusion. The barb 622 is located below the free end of the cover 61. After the cover 61 is placed inside the groove 71, the barb 622 and the fixing hole are at the same horizontal level. Pushing the push block inward inserts the barb 622 into the fixing hole to lock the cover 61, and pushing the push block outward unlocks it. The cover 61 has holes for the switch 1, the straw, and the push block to pass through, which do not interfere with each other. When the cover 61 is placed inside the groove 71, the upper end of the cover 61 is flush with the upper end of the upper cover 7.
[0044] like Figure 11 As shown, a third spring 623 is also provided between the slider 62 and the cover 61. When the slider 62 is pushed outward, the third spring 623 is compressed. When the cover 61 is covered in the groove 71 and is not subjected to external force, the third spring 623 keeps the barb 622 in the fixing hole, ensuring that the cover 61 will not open arbitrarily and cause water to spill out.
[0045] like Figure 5 As shown, the straw is located inside the straw opening 5, extending from the groove 71. A straw cap 52 is provided on the straw, and a cap strap 53 is connected to the straw cap 52. The other end of the cap strap 53 is connected to the upper cover 7. The straw cap 52 and the straw can be fitted together. Preferably, to ensure the water-sealing effect of the straw cap 52, the straw cap 52 is threaded to the straw. The straw cap 52 has an annular groove on its outside, and the cap strap 53 is fitted into the annular groove. Rotating the straw cap 52 does not affect the cap strap 53. The straw is divided into an upper straw and a lower straw. The upper straw is fixed to the upper part of the cover 61, and moves with the cover when it is opened. The lower straw is fixed to the lower part of the upper cover 7, and connects the upper and lower straws when the cover 61 is closed.
[0046] like Figure 2 , 15As shown in Figure 16, the lower limiting member is provided with an exhaust hole 8, a sealing plug 81 at the lower end of the exhaust hole 8, and a vertical rod 82 at the upper end of the exhaust hole 8. The vertical rod 82 passes through the exhaust hole 8 and is connected to the sealing plug 81. A fourth spring 83 is sleeved on the vertical rod 82. The upper end of the fourth spring 83 is fixed to the connecting rod, and the lower end is fixed to the upper end of the exhaust hole 8. The vertical rod 82 is located below the switch member 1. The exhaust hole 8 is located at the center of the lower limiting member 32, and the lower limiting member 32 is provided with a circular slide for the vertical rod 82 to slide. The first inclined surface 12 and the second inclined surface 22 are spaced apart. When the switch member 1 is pressed down, the switch member 1 first pushes the vertical rod 82 and the sealing plug 81 to open the exhaust hole 8, so that the internal and external pressures are consistent, and then the cup lid is opened to avoid a large internal and external pressure difference that could lead to an explosion.
[0047] like Figure 14 As shown, the lower limiting member 32 is provided with a fifth spring 84, and a sliding ring 85 is connected to the upper end of the fifth spring 84. The upper limiting member 31 passes through the upper part of the sliding ring 85. The switch member 1 abuts against the sliding ring 85. After the external force is removed by pressing down the switch member 1, the switch member 1 automatically returns to its original position under the action of the fifth spring 84. Four limiting crossbars 86 are connected to the outer side of the lower end of the sliding ring 85, which respectively restrict the four locking members 2. The lower limiting member 32 is provided with a horizontal groove 71 for the sliding ring 85 and the limiting crossbars 86 to slide up and down. The fiber crossbar is set on the inner rotation path of the locking member 2. When the switch member 1 is pressed down, the limiting crossbar 86 is moved down first, and then the locking member 2 is rotated to unlock.
[0048] A multi-functional water cup, such as Figure 2-3 As shown in Figure 9, the cup includes a cup body 9 and any of the aforementioned cup lids. A plastic part 91 is provided on the inner side of the cup mouth of the cup body 9, and a stepped portion 92 is provided on the plastic part 91. The plastic part 91 can be separately set from the cup body 9 or integrally formed. When the cup lid is locked at the cup mouth, the locking member 2 is stuck by the stepped portion 92; when the locking member 2 rotates inward, the locking member 2 disengages from the stepped portion 92, and the cup lid is unlocked. A sealing silicone 33 is provided at the bottom of the cup lid, and the sealing silicone 33 has a notch 331. The cup body 9 has an inclined surface with a decreasing inner diameter from top to bottom. When the cup lid is closed, the sealing silicone 33 contacts the inclined surface. The presence of the notch 331 allows the silicone outside the notch 331 more space to deform inward when in contact with the inclined surface, ensuring complete contact between the silicone outside the notch 331 and the inclined surface, increasing the contact area, and enhancing the sealing effect of the cup lid.
[0049] This invention provides a water cup that allows for quick one-button opening and one-handed locking, while also offering multiple functions including direct drinking, straw drinking, and drinking with the lid open. It is simple to operate, highly practical, and fun to use, helping users drink more water.
[0050] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this utility model patent.
Claims
1. A cup lid characterised in that: The utility model provides a cup cover, including switch piece (1), lock piece (2) and limit piece, lock piece (2) is rotatively connected on limit piece, lock piece (2) is connected with first spring (23), lock piece (2) can extend into the step portion of cup mouth inner wall and lock cup cover, switch piece (1) is slidably connected with limit piece, and the switch piece (1) is pressed down can make lock piece (2) rotate inward and thereby unlock cup cover, and the pressure of withdrawal is removed, and first spring (23) makes lock piece (2) rotate outward and thereby lock cup cover.
2. A cup lid as claimed in claim 1, characterised in that: The limit piece includes upper limit piece (31) and lower limit piece (32), the upper limit piece (31) and the lower limit piece (32) are fixedly connected, the cup cover further includes a moving piece (4), the moving piece (4) is annular, the moving piece (4) includes a horizontal section (41), a vertical section (42) is arranged on the inner side of the horizontal section (41) downward, the lock piece (2) and the moving piece (4) are located between the upper limit piece (31) and the lower limit piece (32), a second spring (43) is arranged between the horizontal section (41) and the upper limit piece (31), and the lower end of the vertical section (42) abuts against the lock piece (2).
3. A cup lid as claimed in claim 2, characterised in that: The cup cover further includes a straw port (5) and a straight drinking port (6), the upper end of the upper limit piece (31) is provided with an upper cover (7), the upper cover (7) is provided with a recess (71) penetrating through both sides, the switch piece (1), the straw port (5) and the straight drinking port (6) are located in the recess (71), the switch piece (1) is located in the middle of the recess (71), and the straw port (5) and the straight drinking port (6) are respectively located at both ends of the recess (71).
4. A cup lid as claimed in claim 3, characterised in that: The recess (71) is further provided with a straight drinking port buckle cover (61), one end of the buckle cover (61) away from the straight drinking port (6) is hingedly connected with the upper cover (7), the buckle cover (61) is internally provided with a sliding block (62) capable of sliding in the buckle cover (61), the sliding block (62) is provided with a push block (621) penetrating through the buckle cover (61), the lower end of the sliding block (62) is provided with a barb (622), the upper cover (7) is provided with a fixing hole (72), the barb (622) can penetrate into the fixing hole (72) to fix the buckle cover (61) on the recess (71), the push block (621) can be actuated to make the barb (622) disengage from the fixing hole (72), and a third spring (623) is further arranged between the sliding block (62) and the buckle cover (61), and the third spring (623) is compressed when the sliding block (62) is pushed outward.
5. A cup lid as claimed in claim 3, characterised in that: A straw is arranged in the straw port (5), the straw extends out of the recess (71), the straw is provided with a straw cap (52), the straw cap (52) is connected with a cap band (53), and the other end of the cap band (53) is connected with the upper cover (7).
6. A cup lid as claimed in any one of claims 2 to 5, wherein: The lower side of the switch piece (1) is provided with a convex block (11), the convex block (11) is provided with a first inclined surface (12), the lock piece (2) is provided with a second inclined surface (22) corresponding to the first inclined surface (12), the lock piece (2) is provided with a square hole (21), and the second inclined surface (22) is located on the inner side of the square hole (21).
7. A cup lid as claimed in claim 6, characterised in that: The protrusion (11) and the locking member (2) are provided in four places. Two of the locking members (2) are connected to the limiting member at the same place. The other two locking members (2) are also connected to the limiting member at the same place. The four locking members (2) are spaced at the same angle and distance. The thickness of the locking member (2) at the connection with the limiting member is half that of the other parts. The four locking members (2) are located at the same horizontal height.
8. A cup lid as claimed in claim 7, characterised in that: The lower limiting member (32) is provided with an exhaust hole (8), and a sealing plug (81) is provided at the lower end of the exhaust hole (8). A vertical rod (82) is provided at the upper end of the exhaust hole (8). The vertical rod (82) passes through the exhaust hole (8) and is connected to the sealing plug (81). A fourth spring (83) is provided on the outer sleeve of the vertical rod (82). The upper end of the fourth spring (83) is fixed to the vertical rod (82), and the lower end is fixed to the upper end of the exhaust hole (8). The vertical rod (82) is located below the switch member (1). The first inclined surface (12) and the second When the inclined plane (22) is spaced a distance apart, the switch (1) is pressed down. The switch (1) first pushes the upright (82) and the sealing plug (81) to open the exhaust hole (8). The lower limiting member (32) is also provided with a fifth spring (84). The fifth spring (84) is sleeved on the outside of the exhaust hole (8). The upper end of the fifth spring (84) is connected to a sliding ring (85). The switch (1) abuts against the sliding ring (85). The lower end of the sliding ring (85) is connected to a limiting crossbar (86).
9. A multi-functional water cup characterized by: The cup includes a cup body (9) and a cup lid as described in any one of claims 1-8. A plastic part (91) is provided on the inner side of the cup mouth of the cup body (9). The plastic part (91) is fixedly connected to the cup body (9). A step portion (92) is provided on the plastic part (91).
10. The multi-functional water cup according to claim 9, wherein: The bottom of the cup lid is provided with a sealing silicone (33), which is sleeved on the outside of the bottom of the lower limiting member (32). The sealing silicone (33) has a notch (331). The cup body (9) has an inclined surface with a smaller inner diameter from top to bottom. When the cup lid is closed, the sealing silicone (33) contacts the inclined surface.