Glass self-sealing water cup cover and water cup

Abstract

The utility model discloses a glass self-sealing water cup cover and water cup, including including inner cover and setting on the inner cover can go back and forth rotation's outer cover, the inner side wall of inner cover is provided with the interval distribution's clamping groove, and the middle downward position of inner cover is provided with upper glass water seal subassembly. Including cup body, the opening outside wall of cup body is provided with the clamping point that evenly distributed has interval, and in the opening inner side wall of cup body is provided with lower glass tube, and the opening of cup body places glass self-sealing water cup cover like above. The utility model discloses create a kind of glass water seal mode, not only greatly improve the sealing property, and it is favorable to reduce the problem of later period due to silicone wear, more can satisfy the requirement of user pursuit high sealing effect, has huge market value.

Description

Technical Field

[0001] This utility model relates to the field of water cup technology, and in particular to a glass self-sealing water cup lid and water cup. Background Technology

[0002] With the improvement of people's living standards and the development of good hygiene habits, carrying one's own water bottle has become a trend. To prevent water from overflowing from a thermos, a lid must be fitted to the mouth of the cup for a tight seal. Existing thermoses and lids are sealed with silicone. For example, Chinese utility model patent CN207477324U discloses a lid and a thermos, where the lid includes an upper cover, a ring-shaped lower cover, and a glass partition. The lower cover has internal threads on its lower inner wall, and a raised ring is formed on its upper inner wall surface. The raised ring is covered with a food-grade silicone sealing gasket, which seals the lid to the cup. The glass partition separates the water in the cup from the upper cover, so only the glass partition and the silicone sealing gasket come into contact with the water. However, traditional silicone sealing gaskets are prone to damage with frequent use and often become loose in the later stages, resulting in poor water sealing and leakage. This inconveniences users and fails to meet the needs of modern users. Utility Model Content

[0003] (a) Technical problems that need to be solved To address the shortcomings of existing technologies, this utility model provides a self-sealing glass water cup lid and water cup, which pioneers a glass water sealing mode that not only greatly improves the sealing performance but also helps reduce the problem of silicone wear in the later stages. It can better meet users' requirements for high sealing performance and has great market value.

[0004] (ii) Technical solutions to be adopted To achieve the above objectives, the technical solution adopted by this utility model is as follows: A self-sealing glass water cup lid includes an inner lid and an outer lid that can rotate back and forth on the inner lid. The inner sidewall of the inner lid is provided with spaced grooves, and an upper glass sealing component is provided at the center downward position of the inner lid.

[0005] Preferably, the upper glass sealing assembly includes a fixing frame disposed in the middle of the inner cover, a buffer element disposed on the fixing frame, and an upper glass element disposed on the fixing frame for sealing.

[0006] Preferably, the upper glass component is connected to the fixing frame by a sealing ring.

[0007] Preferably, the upper glass component is a solid glass tube, and the solid glass tube has a blind groove.

[0008] Preferably, the fixing frame includes a frame base, on which hooks are provided at intervals, the hooks being integrally formed with the frame base, the frame base having a receiving groove for placing the buffer, and the inner cover having mounting holes for installing the hooks.

[0009] Preferably, the mounting bracket is provided with an opening and closing prompt sound device for cooperating with the outer cover.

[0010] Preferably, the open and close prompt sound device includes a positioning post disposed on the fixed frame, a mounting base mounted on the positioning post, the open and close prompt sound device passing through the inner cover, a hook provided on the outer side wall of the mounting base to prevent detachment from the inner cover, a device groove provided on the upper end face of the mounting base, a spring element and a spring pin disposed in the device groove, a notch provided on the upper end face of the mounting base at the device groove position for the spring pin to enter and exit, and a central hole provided at the center position of the outer cover, the inner side wall of the central hole being provided with concave and convex teeth.

[0011] Preferably, the outer wall of the inner cover is provided with inclined track grooves at even intervals, and the outer cover is provided with rolling elements at even intervals, which roll back and forth in the corresponding inclined track grooves.

[0012] Preferably, the inclined track groove includes a horizontal recess and an inclined recess disposed on the outer side wall of the inner cover. The horizontal recess and the inclined recess are interconnected. The rolling element slides back and forth on the horizontal recess and the inclined recess. The angle between the inclined recess and the horizontal plane is 75°.

[0013] Preferably, each of the inclined recesses is provided with an elastic steel member.

[0014] Preferably, the outer side wall of the inner cover is provided with a ball bearing, the ball bearing is in contact with the inner side wall of the outer cover, and the inner cover is provided with a limiting ring for fixing the ball bearing, the limiting ring is provided with a fixing post, and the fixing post is provided with a return spring.

[0015] Preferably, the outer cover is provided with a protective cover.

[0016] Preferably, the outer wall of the outer cover is provided with evenly spaced locking grooves, and the inner wall of the protective cover is provided with evenly spaced locking blocks. The locking blocks are engaged in the locking grooves to fix the protective cover and the outer cover together.

[0017] A water cup includes a cup body, wherein the outer side wall of the opening of the cup body is provided with evenly distributed locking points, and a lower glass tube is provided on the inner side wall of the opening of the cup body, and a self-sealing glass water cup lid as described above is placed on the opening of the cup body.

[0018] (III) The technical effects to be achieved Compared with the prior art, the beneficial effects of this utility model are: Firstly, this utility model includes an inner cover and an outer cover that can rotate back and forth on the inner cover. The inner side wall of the inner cover is provided with spaced grooves, and the upper glass water sealing component is provided in the middle downward position of the inner cover. The cup lid with this configuration is also extremely simple in structure, which is convenient for mass production and manufacturing. At the same time, it helps to end the existing thread and silicone sealing methods and creates a glass water sealing method, which has great practical significance.

[0019] Secondly, the upper glass water sealing assembly of this utility model includes a fixing frame set in the middle of the inner cover, a buffer component set on the fixing frame, and an upper glass component for sealing. This type of upper glass water sealing assembly is easy to manufacture in terms of structure, which is conducive to achieving better water sealing and air sealing effects, and can better meet the actual needs of users.

[0020] Thirdly, the inner cover of this utility model has inclined track grooves evenly spaced on the outer wall, and rolling elements are evenly spaced on the outer cover. The rolling elements roll back and forth in the corresponding inclined track grooves. This eliminates the 360-degree rotation opening and closing of the existing threaded method. Only a certain angle needs to be rotated to open and close, which is convenient for users and also helps to achieve a better tight seal.

[0021] Fourthly, this utility model includes a cup body, with evenly distributed locking points on the outer wall of the cup body's opening, and a lower glass tube on the inner wall of the cup body's opening. A self-sealing glass lid, as described above, is placed on the opening of the cup body. This application to a water cup not only avoids the need for several rotations to open and close the cup, but also allows for opening and closing with only a certain angle of rotation, greatly facilitating user operation. Furthermore, the glass seal inside the cup body significantly improves the sealing effect for both water and air, better meeting user needs and ensuring normal drinking even after opening. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of an explosion of a self-sealing glass water cup lid according to the present invention.

[0023] Figure 2 This is a schematic diagram of the overall structure of a self-sealing glass water cup lid according to the present invention.

[0024] Figure 3This is a three-dimensional schematic diagram of a self-sealing glass water cup lid according to the present invention.

[0025] Figure 4 This is a schematic diagram of the front view of a self-sealing glass water cup lid according to the present invention.

[0026] Figure 5 for Figure 4 Sectional view along the AA direction.

[0027] Figure 6 This is a side view of a self-sealing glass water cup lid according to the present invention.

[0028] Figure 7 for Figure 6 Sectional view along the BB direction.

[0029] Figure 8 This is an exploded view of the inner cover, outer cover, and protective cover of a self-sealing glass water cup lid according to this utility model.

[0030] Figure 9 This is a schematic diagram of the upper glass sealing component in a self-sealing glass water cup lid according to the present invention.

[0031] Figure 10 This is a schematic diagram of the assembly of the upper glass sealing component and the opening and closing prompt sound device in a glass self-sealing water cup lid according to the present invention.

[0032] Figure 11 This is a schematic diagram of the structure of an opening and closing prompt sound device installed on the inner cover of a self-sealing glass water cup lid according to the present invention.

[0033] Figure 12 This is a schematic diagram of the assembly of the outer cover and the protective cover in a self-sealing glass water cup lid according to this utility model.

[0034] Figure 13 This is a schematic diagram of the inner cover structure of a self-sealing glass water cup lid according to the present invention.

[0035] Figure 14 This is a schematic diagram of the inner cover of a self-sealing glass water cup lid according to the present invention.

[0036] Figure 15 This is a schematic diagram of the assembly of the outer cover and the upper glass sealing component in a self-sealing glass water cup lid according to the present invention.

[0037] Figure 16 This is a schematic diagram of the disassembly of a water cup according to the present invention.

[0038] Figure 17 This is an exploded view of the cup body and lower glass tube of a water cup according to the present invention.

[0039] Figure 18This is a schematic diagram of a water cup after assembly according to the present invention.

[0040] Figure 19 This is a schematic diagram of the assembled water cup according to the present invention.

[0041] Figure 20 for Figure 19 Sectional view along the CC direction.

[0042] In the diagram: 1, Inner cover; 2, Outer cover; 3, Slot; 4, Upper glass sealing assembly; 5, Opening and closing sound indicator; 6, Protective cover; 11, Inclined track groove; 12, Ball bearing; 13, Limiting ring; 14, Return spring; 21, Rolling element; 22, Engaging groove; 41, Fixing bracket; 42, Buffer element; 43, Upper glass element; 44, Sealing ring; 51, Positioning post; 52, Mounting base; 53, Elastic element; 54, Spring pin; 55, Corrugated teeth; 111, Horizontal recess; 112, Inclined recess; 113, Elastic steel element; 521, Hook.

[0043] 10, Cup body; 20, Locking point; 30, Lower glass tube; 40, Self-sealing glass water cup lid. Detailed Implementation

[0044] 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.

[0045] 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.

[0046] 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.

[0047] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0048] Example 1: See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 13 A self-sealing glass water cup lid includes an inner lid 1 and an outer lid 2 that can rotate back and forth on the inner lid 1. The inner side wall of the inner lid 1 is provided with spaced grooves 3. An upper glass water-sealing component 4 is provided at the center downward position of the inner lid 1. This method of sealing water through the upper glass water-sealing component 4 ends the existing method of sealing water by means of threads and silicone. It not only greatly improves the sealing performance, but also helps to reduce the problem of silicone wear in the later stage. It can better meet the user's requirements for high sealing effect and has great market value.

[0049] Example 2: This can be explained based on Example 1, such as... Figure 1 , Figure 5 , Figure 7 , Figure 9 and Figure 10As shown, the upper glass sealing assembly 4 includes a fixing frame 41 located in the middle of the inner cover 1. A buffer element 42 is mounted on the fixing frame 41, and an upper glass element 43 is mounted on the fixing frame 41 for sealing. The upper glass element 43 not only seals the water, meeting user needs, but also buffers the upper glass element 43, preventing breakage. Further, the upper glass element 43 is connected to the fixing frame 41 by a sealing ring 44 made of silicone material, which improves the stability and firmness of the connection between the upper glass element 43 and the fixing frame 41. Even further, the upper glass element 43 is a solid glass tube with blind grooves. This not only facilitates the installation of the solid glass tube on the fixing frame 41 but also facilitates water sealing. The solid glass tube can be made of borosilicate glass, microcrystalline glass, or heat-resistant glass, offering a variety of types and a wide range of choices. Finally, it should be noted that the fixing frame 41 includes a base, on which are spaced hooks integrally formed. The base has recesses for receiving the buffer component 42. Figure 13 As shown, the inner cover 1 has mounting holes for mounting hooks, which helps to prevent the bracket 41 from detaching from the inner cover 1.

[0050] Among them, such as Figure 1 , Figure 5 , Figure 7 , Figure 9 and Figure 10 As shown, the buffer 42 uses a spring, which is widely available and easy to implement.

[0051] Example 3: This can be explained based on Example 3 or Example 4, such as... Figure 1 , Figure 5 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12As shown, the mounting bracket 41 is equipped with an opening and closing prompt sound device 5 for cooperating with the outer cover 2. The opening and closing prompt sound device 5 makes the outer cover 2 have a rotating feel when it rotates relative to the inner cover 1, which helps the user to feel the rotation. Specifically, the open and close prompt sound device 5 includes a positioning post 51 mounted on a fixed frame 41, a mounting base 52 mounted on the positioning post 51, the open and close prompt sound device 5 passing through the inner cover 1, a hook 521 preventing detachment from the inner cover 1 on the outer wall of the mounting base 52, a device groove on the upper end face of the mounting base 52, a spring element 53 and a spring pin 54 in the device groove, a notch for the spring pin 54 to enter and exit on the upper end face of the mounting base 52 at the device groove position, and a center hole at the center position of the outer cover 2, with concave and convex teeth 55 on the inner side wall of the center hole. The spring pin 54 engages with the concave and convex teeth 55 as it enters and exits from the notch, thereby achieving a tactile feedback when rotating, and also allowing the user to know that the open and close prompt sound device 5 will produce a sound during the rotation of the outer cover 2. When the outer cover 2 cannot be rotated, the open and close prompt sound device 5 will not produce a sound, allowing the user to know that it is in the open or closed state. To further explain, the elastic element 53 is a spring, which facilitates the back-and-forth movement of the spring needle 64.

[0052] Example 4: This can be described based on Example 1, Example 2, or Example 3, such as... Figure 1 , Figure 8 , Figure 11 , Figure 14 and Figure 15 As shown, inclined track grooves 11 are evenly arranged on the outer side wall of the inner cover 1, and rolling elements 21 are evenly arranged on the outer cover 2. The rolling elements 21 roll back and forth in the corresponding inclined track grooves 11. This makes it easier for the outer cover 2 to rotate back and forth on the outer surface of the inner cover 1, without having to rotate in a 360° direction.

[0053] like Figure 1 , Figure 8 , Figure 11 , Figure 14 and Figure 15As shown, there are three inclined track grooves 11 and three rolling elements 21, with each rolling element 21 corresponding to one inclined track groove 11. This arrangement is reasonable and easy to implement. Further explanation: the inclined track groove 11 includes a horizontal recess 111 and an inclined recess 112 located on the outer wall of the inner cover 1. The horizontal recess 111 and the inclined recess 112 are interconnected, and the rolling element 21 slides back and forth on the horizontal recess 111 and the inclined recess 112. The angle between the inclined recess 112 and the horizontal plane is 75°. This design eliminates the need for repeated rotation (at least 360 degrees, often requiring multiple rotations) and the requirement for precise alignment of threads to tighten. It also eliminates the time-consuming and laborious need for two-handed operation and repeated checks for tightening. In actual operation, this invention only requires a 75° rotation to open and close, ending the cumbersome era of 360° rotation and significantly improving practicality. To further explain, each inclined groove 112 is provided with an elastic steel member 113 (in this embodiment, a U-shaped locking bar is used, and the elastic steel mainly includes phase change induced elastic steel, CK75 spring steel, stainless steel spring wire, or SUP6 spring steel, etc.). This helps to prevent the rolling member 21 from easily rolling out and rolling in from the inclined groove 112. When rolling over the elastic steel member 113, there is a stuck sound, which helps to increase the difficulty of rolling and prevents easy accidental opening.

[0054] Among them, such as Figure 1 , Figure 8 , Figure 11 , Figure 14 and Figure 15 As shown, the rolling element 21 is made of ball bearings or steel balls. That is, the outer cover 2 has a hole for the device, and the rolling element 21 is installed in the hole. The rolling element 21 can also rotate in the hole, which is more conducive to sliding back and forth in the inclined track groove 11.

[0055] like Figure 1 , Figure 8 , Figure 11 , Figure 14 and Figure 15As shown, the outer wall of the inner cover 1 is provided with a rolling ball 12, which contacts the inner wall of the outer cover 2. The inner cover 1 is provided with a limiting ring 13 for fixing the rolling ball 12. A fixing post is provided on the limiting ring 13, and a return spring 14 is provided on the fixing post. In this embodiment, three rolling balls 12 are used, and the limiting ring 13 has a limiting post that abuts against the corresponding rolling ball 12 to prevent it from falling out. There are also three fixing posts, each with a return spring 14. This design allows the limiting ring 13 to return to its original position after compression. The limiting ring 13, fixing posts, and limiting posts are integrally formed, greatly improving the structural robustness. It should also be noted that the outer wall of the inner cover 1 has a fixing groove for installing the fixing post, and an installation groove for installing the limiting post and the rolling ball 12, facilitating implementation.

[0056] Example 5: This can be described based on Example 1, Example 2, Example 3, or Example 4, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a protective cover 6 is provided on the outer cover 2, which protects both the outer cover 2 and the inner cover 1, facilitating normal use by the user. Further, the protective cover 6 is made of steel. Even further, the outer side wall of the outer cover 2 has evenly spaced engaging grooves 22, and the inner side wall of the protective cover 6 has evenly spaced locking blocks. These blocks engage with the engaging grooves 22 to securely connect the protective cover 6 to the outer cover 2. When the locking blocks disengage from the corresponding engaging grooves 22, the protective cover 6 and the outer cover 2 can be detached. In this embodiment, there are four locking blocks and four engaging grooves 22, which improves the stability of the connection.

[0057] Example 6: This can be described based on Example 1, Example 2, Example 3, Example 4, or Example 5, such as... Figure 16 , Figure 17 , Figure 18 , Figure 19 and Figure 20As shown, this utility model also provides a water cup, including a cup body 10. The outer wall of the opening of the cup body 10 is provided with evenly distributed locking points 20, and a lower glass tube 30 is provided on the inner wall of the opening of the cup body 10. A self-sealing glass cup lid 40, as described above, is placed on the opening of the cup body 10. At this time, the locking points 20 fall into the locking grooves 3 of the self-sealing glass cup lid 40, restricting the rotation of the inner cover 1 in the self-sealing glass cup lid 40. Then, the outer cover 2 (protective cover 6) in the self-sealing glass cup lid 40 is rotated. The outer cover 2 (protective cover 6) rotates along the inclined track groove 11 on the inner cover 1. When the outer cover 2 is rotated, it causes the upper glass sealing assembly 4 to move downwards (compressing the buffer 42). In this way, the upper glass sealing assembly 4 will completely seal with the lower glass tube 30, and the upper glass in the upper glass sealing assembly 4 will be sealed. The glass element 43 and the lower glass tube 30 seal off water vapor through a self-sealing principle, ensuring that the glass self-sealing water cup lid 40 and the cup body 10 will not leak water or air. This avoids the need for contact with plastic in existing technologies, achieving zero pollution by eliminating plastic contact throughout the entire process from adding water to drinking. Utilizing the properties of glass, the upper glass element 43 and the lower glass tube 30 can self-adhere to each other to form a seal that prevents air from escaping and water from entering. This helps to seal the glass self-sealing water cup lid 40 more tightly over the mouth of the cup body 10. When the glass self-sealing water cup lid 40 is rotated in the opposite direction (counterclockwise), the outer cover 2 (protective cover 6) of the glass self-sealing water cup lid 40 will rise (while the buffer 42 will provide an upward force), making it easier to remove the glass self-sealing water cup lid 40 from the mouth of the cup body 10. The device eliminates the need for multiple rotations like those required for food processing to open and close, making it extremely convenient to use. It also prevents leaks caused by misalignment, making it easier for users to carry and use.

[0058] This utility model is applicable to stainless steel cups, plastic cups, titanium cups, specially made glass cups, and related liquid containers, etc.

[0059] Among them, such as Figure 16 and Figure 17 As shown, the locking point 20 is located on the upper part of the outer side wall of the opening of the cup body 10. This setting is more conducive to the matching of the locking groove 3 of the glass self-sealing water cup lid 40. In this embodiment, three locking points 20 are used for ease of implementation. The locking point 20 and the cup body 10 are integrally formed.

[0060] Among them, such as Figure 16 and Figure 17 As shown, the opening of the cup body 10 has a step inside, and a lower glass tube 30 is installed on the step. The lower glass tube 30 is ring-shaped, and the upper end face of the lower glass tube 30 is in contact with the lower end face of the upper glass component 43 in the upper glass sealing assembly 4. The upper glass component 43 in the upper glass sealing assembly 4 and the lower glass tube 30 seal water vapor through the principle of self-sealing upon contact with water. This ensures that the glass self-sealing cup lid 40 and the cup body 10 will not leak water or air, and can better meet the needs of use.

[0061] Among them, the glass tube 30 is made of borosilicate glass, microcrystalline glass, or heat-resistant glass, with a variety of types and a wide range of choices.

[0062] All standard parts used in this application can be purchased from the market, and the specific connection methods of each part adopt conventional methods such as sealing rings that are mature in the existing technology, and will not be described in detail here.

[0063] 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 self-sealing glass water cup lid, comprising an inner lid (1) and an outer lid (2) disposed on the inner lid (1) and capable of rotating back and forth, characterized in that: The inner wall of the inner cover (1) is provided with spaced slots (3), and the upper glass sealing water assembly (4) is provided at the middle downward position of the inner cover (1).

2. The self-sealing glass water cup lid as described in claim 1, characterized in that: The upper glass sealing assembly (4) includes a fixing frame (41) located in the middle of the inner cover (1), a buffer (42) is provided on the fixing frame (41), and an upper glass component (43) for sealing is provided on the fixing frame (41).

3. The glass self-sealing water cup lid as described in claim 2, characterized in that: The upper glass component (43) is connected to the fixing frame (41) by a sealing ring (44).

4. The glass self-sealing water cup lid as described in claim 2 or 3, characterized in that: The upper glass component (43) is made of solid glass tube, and the solid glass tube has a blind groove.

5. The self-sealing glass water cup lid as described in claim 2, characterized in that: The fixing frame (41) includes a frame base, on which hooks are provided at intervals. The hooks are integrally formed with the frame base. The frame base has a receiving groove for placing the buffer (42), and the inner cover (1) has a mounting hole for installing the hooks.

6. The glass self-sealing water cup lid as described in claim 2, 3, or 5, characterized in that: The mounting bracket (41) is provided with an opening and closing prompt sound device (5) for cooperating with the outer cover (2).

7. The glass self-sealing water cup lid as described in claim 6, characterized in that: The opening and closing prompt sound device (5) includes a positioning post (51) set on the fixed frame (41), a mounting base (52) is installed on the positioning post (51), the opening and closing prompt sound device (5) passes through the inner cover (1), the outer wall of the mounting base (52) is provided with a hook (521) to prevent it from falling off the inner cover (1), the upper end face of the mounting base (52) is provided with a device groove, the device groove is provided with an elastic element (53) and a spring needle (54), the upper end face of the mounting base (52) at the device groove position is provided with a notch for the spring needle (54) to enter and exit, and the center position of the outer cover (2) is provided with a central hole, the inner side wall of the central hole is provided with concave and convex teeth (55).

8. The glass self-sealing water cup lid as described in claim 1, 2, 3, 5, or 7, characterized in that: The inner cover (1) has inclined track grooves (11) evenly spaced on its outer side wall, and the outer cover (2) has rolling elements (21) evenly spaced on its outer side wall. The rolling elements (21) roll back and forth in the corresponding inclined track grooves (11).

9. The glass self-sealing water cup lid as described in claim 8, characterized in that: The inclined track groove (11) includes a horizontal groove (111) and an inclined groove (112) provided on the outer side wall of the inner cover (1). The horizontal groove (111) and the inclined groove (112) are connected to each other. The rolling element (21) slides back and forth on the horizontal groove (111) and the inclined groove (112). The angle between the inclined groove (112) and the horizontal plane is 75°.

10. A water cup, comprising a cup body (10), characterized in that: The outer side wall of the opening of the cup body (10) is provided with evenly spaced locking points (20), and a lower glass tube (30) is provided on the inner side wall of the opening of the cup body (10). The glass self-sealing water cup lid (40) as described in any one of claims 1 to 9 is placed on the opening of the cup body (10).

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