Safe cup cover
By arranging the verification unit in the cavity between the second liner and the second lid body in the cup lid, and combining it with the design of the unlocking unit and the braking unit, the problems of unstable center of gravity and easy damage of existing cup lids are solved, and a more stable and economical cup lid structure is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN MOSHENG INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-04-24
AI Technical Summary
The lids of existing children's thermos cups have electronic components concentrated on the outermost layer, which makes them unstable and prone to damage. Furthermore, when unlocked, the weight is concentrated at the hinge, affecting the service life and production costs.
The verification unit is installed in the cavity between the second inner liner and the second cover. Combined with the design of the unlocking unit and the braking unit, the weight distribution is optimized. The unlocking and braking structure is achieved through fingerprint recognition, ensuring the stability and security of the cup lid.
The weight distribution of the cup lid has been optimized, avoiding instability of the center of gravity and damage to the hinges, reducing material requirements and production costs, while improving the stability and safety of the cup lid in use.
Smart Images

Figure CN224155436U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of personal drinking water devices, specifically a safety cup lid. Background Technology
[0002] Students, train passengers, and group travelers sometimes lose their water bottles from monitoring or leave them at water dispensers, which can lead to hygiene problems due to misuse.
[0003] A type of children's thermos cup lid, used for threaded connection to the cup body, includes, from bottom to top, a spout, a spout cover, and a snap-on cover. The spout has an annular first limiting groove. The spout cover rotatably fits onto the spout, and has a spring-driven locking part inside. After the snap-on cover and spout cover are locked by a fingerprint lock, the snap-on cover presses against the locking part, causing the locking part to disengage from the annular first limiting groove. When the spout cover is turned by hand, the spout cannot be moved, thus preventing the cup lid from being unscrewed. After the snap-on cover is unlocked and lifted, the locking part automatically resets and engages with the annular first limiting groove. When the spout cover is turned by hand, the spout can be rotated, thus allowing the cup lid to be unscrewed.
[0004] The existing fingerprint unlocking electronic components are installed on the outermost third cover, which causes the weight to be concentrated at the hinge between the third and second covers after unlocking. This makes the hinge prone to damage. At the same time, the electronic components are concentrated on the first cover, causing the entire cup lid to be unstable and top-heavy. Utility Model Content
[0005] To address the aforementioned problems in the existing technology, this utility model provides a safety cup lid.
[0006] The technical solution adopted by this utility model is as follows: A safety cup lid for covering the mouth of a cup includes a cup lid assembly. The cup lid assembly includes a first lid body, a second lid body, and a third lid body assembled sequentially from bottom to top. A first inner liner is installed on the inner wall of the second lid body. The first inner liner is rotatably connected to the first lid body. A second inner liner is installed inside the first lid body. A cavity is formed between the second inner liner and the second lid body. A verification unit for collecting and verifying user identity information is installed inside the cavity. An unlocking unit connected to the verification unit is also installed inside the cavity. A braking unit is also installed inside the cavity. The unlocking unit and the braking unit are located at opposite ends of the same radial direction of the cup lid assembly.
[0007] Furthermore, the verification unit includes a rechargeable battery as a power source, the rechargeable battery being electrically connected to a circuit board, the rechargeable battery and the circuit board being mounted on a second inner liner, the circuit board being electrically connected to a fingerprint module for receiving fingerprint input operations, the fingerprint module being mounted on a second cover.
[0008] Furthermore, the unlocking unit includes a micro motor electrically connected to the circuit board. A first bevel gear is installed at the output end of the micro motor. The first bevel gear meshes with a second bevel gear. A rotating shaft is installed on the second bevel gear. A pulling member is installed on the rotating shaft. The rotating shaft is rotatably mounted on a first limiting groove. The first limiting groove is mounted on a second inner liner. A latching member is slidably installed in the first limiting groove. A central shaft is installed on the latching member. The central shaft slides in cooperation with a groove on the pulling member. A first compression spring is also sleeved on the central shaft. One end of the first compression spring is fixedly connected to the pulling member, and the other end is fixedly connected to the latching member.
[0009] Furthermore, the second cover has an unlocking hole, and the inner wall of the third cover has a protrusion. The fastener passes through the unlocking hole and engages with the protrusion.
[0010] Furthermore, the braking unit includes a second limiting groove installed on the second inner liner, a positioning shaft installed in the second limiting groove, a braking component sleeved on the positioning shaft, and a second compression spring sleeved on the positioning shaft. One end of the second compression spring is fixedly connected to the braking component, and the other end is fixedly connected to the second limiting groove.
[0011] Furthermore, the first cover has a central axis symmetric structure, a drinking hole is provided in the middle of the first cover, the outer wall of the first cover is provided with a thread for engaging with the mouth of the beverage cup, the inner wall of the first cover is provided with a first stepped surface, the bottom of the second inner liner inserted into the first cover contacts the first stepped surface, and a sealing ring is also installed between the first cover and the second inner liner.
[0012] The second cover is rotatably and coaxially sleeved on the first cover through the first inner liner. The radially outer vertical surface of the second cover is provided with an outwardly protruding first hinge member, and a brake through hole corresponding to the brake member is provided near the first hinge member.
[0013] The top surface of the second cover is provided with a central through hole, and a suction nozzle is installed at the central through hole. The suction nozzle is tubular.
[0014] The second inner liner has a drinking hole in the middle. The upper end of the drinking hole is connected to the mouthpiece and the lower end is connected to the drinking hole of the first cover. The top of the second inner liner is inserted into the top surface of the inner wall of the second cover, and a sealing ring is installed at the contact point between the two.
[0015] The radial outer surface of the third cover is provided with a cam corresponding to the brake through hole. The contact surface between the brake and the cam is an inclined surface. The third cover and the second cover are hinged to each other through the cam and the first hinge. The third cover and the second cover are snapped together at one end opposite the cam, so that they can be opened and closed to cover the nozzle.
[0016] Furthermore, the inner wall of the first liner is provided with a second stepped surface, the bottom surface of the outer edge of the first cover is in contact with the second stepped surface, and a plurality of blocking blocks are provided on the outer edge of the first cover. The plurality of blocking blocks are equidistantly distributed along the circumference of the first cover, and a braking groove is formed between two adjacent blocking blocks. The braking groove cooperates with the braking component.
[0017] Furthermore, each side of the cam is provided with a protruding second hinge, and the two first hinges are embedded in the gap between the cam and the two second hinges in a one-to-one correspondence; the second cover and the third cover are hinged to each other by the cam, the first hinge, the second hinge and the pin.
[0018] Furthermore, the rechargeable battery is electrically connected to a magnetic charging socket for charging the rechargeable battery, and the magnetic charging socket is mounted on the second cover.
[0019] Furthermore, the user identity information can be a digital code, fingerprint pattern, palm print pattern, iris pattern, gesture animation, or facial expression animation.
[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0021] This safety cup lid, through the cooperation and rational layout of a first lid body, a second lid body, a third lid body, a first inner liner, and a second inner liner, houses the verification unit within the cavity formed by the cooperation between the second inner liner and the second lid body, ensuring the lid's normal operation. Unlike traditional designs where the verification unit (i.e., related electronic components) is mounted on the third lid body, this structural layout optimizes weight distribution and improves the overall stability of the lid. It effectively avoids the third lid body being too heavy after unlocking, which could easily damage the connection between the third and second lid bodies, thus reducing material requirements and saving production costs. Simultaneously, the reduced weight of the third lid body makes it easier to open and prevents the lid from becoming top-heavy. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 A three-dimensional structural schematic diagram provided for an embodiment of this utility model;
[0024] Figure 2 for Figure 1 A three-dimensional sectional view;
[0025] Figure 3 for Figure 1 First-person perspective explosion diagram;
[0026] Figure 4 for Figure 1 A second-person perspective diagram of an explosion.
[0027] Figure Descriptions: 1. Cup lid assembly; 2. First lid; 3. Second lid; 4. Third lid; 5. First inner liner; 6. Second inner liner; 7. Cavity; 8. Verification unit; 9. Unlocking unit; 10. Braking unit; 11. Rechargeable battery; 12. Circuit board; 13. Fingerprint module; 14. Micro motor; 15. First bevel gear; 16. Second bevel gear; 17. Rotating shaft; 18. Pulling component; 19. First limiting groove; 20. Buckle; 21. Central shaft; 22. First compression spring; 23. Unlocking hole; 24. Protrusion; 25. Second limiting groove; 26. Positioning shaft; 27. Brake; 28. Second compression spring; 29. First stepped surface; 30. First hinge; 31. Brake through hole; 32. Suction nozzle; 33. Cam; 34. Second stepped surface; 35. Block; 36. Brake groove; 37. Second hinge; 38. Pin. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0030] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the 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, and therefore should not be construed as a limitation of this utility model.
[0031] The following is combined Figures 1-4 This utility model will be described in detail.
[0032] Example
[0033] Example 1
[0034] Depend on Figure 1-4 It is known that a safety cup lid for covering the mouth of a cup includes a cup lid assembly 1, which includes a first lid body 2, a second lid body 3 and a third lid body 4 assembled sequentially from bottom to top.
[0035] The first lid 2 has a symmetrical structure along its central axis 21. A drinking hole is located in the center of the first lid 2, providing a direct drinking channel for the user. The outer wall of the first lid 2 is provided with threads for engaging with the rim of a beverage cup. These threads are designed to standard specifications and are compatible with most standard-sized beverage cups on the market. The screw-on mechanism ensures a secure connection between the lid and the rim, preventing easy detachment during normal use and carrying.
[0036] The inner wall of the second cover 3 is fitted with a first inner liner 5, which is rotatably connected to the first cover 2. The first cover 2 is fitted with a second inner liner 6.
[0037] The inner wall of the first cover 2 has a first stepped surface 29. The bottom of the second inner liner 6, which is inserted into the first cover 2, contacts the first stepped surface 29, and a sealing ring is installed between the first cover 2 and the second inner liner 6. The first stepped surface 29 provides a precise positioning reference for the second inner liner 6. The sealing ring is made of food-grade silicone, which has good flexibility and sealing performance, and can effectively prevent liquid leakage at the connection between the two, thereby ensuring the normal use of the cover.
[0038] The top surface of the second cover 3 is provided with a central through hole, and a suction nozzle 32 is installed at the central through hole. The suction nozzle 32 is tubular.
[0039] In addition, a hanging lug can be installed on the outer wall of the second cover 3 to facilitate the taking and hanging of the drinking cup. This is existing technology and will not be elaborated on here.
[0040] The second inner liner 6 has a drinking hole in its middle. The upper end of the drinking hole is connected to the nozzle part 32, and the lower end is connected to the drinking hole of the first cover 2, forming a complete drinking channel. The top of the second inner liner 6 is inserted into the top surface of the inner wall of the second cover 3, and a sealing ring is installed at the contact point between the two. The top of the second inner liner 6 and the top surface of the inner wall of the second cover 3 are also sealed by a sealing ring to ensure the airtightness of the entire drinking channel.
[0041] A cavity 7 is formed between the second inner liner 6 and the second cover 3. A verification unit 8 for collecting and verifying user identity information is installed in the cavity 7. An unlocking unit 9 connected to the verification unit 8 is also installed in the cavity 7. A braking unit 10 is also installed in the cavity 7. The unlocking unit 9 and the braking unit 10 are located at opposite ends of the same radial direction of the cup cover assembly 1.
[0042] The verification unit 8 is installed within the cavity 7 formed between the second inner liner 6 and the second lid 3. Unlike existing technologies where it is installed on the third lid 4, this design avoids the third lid 4 being too heavy after unlocking, which could easily damage the connection between the third lid 4 and the second lid 3. This reduces material requirements and saves production costs. Furthermore, the reduced weight of the third lid 4 makes it easier to open and prevents the lid from becoming unstable and top-heavy.
[0043] Verification unit 8: Configured as an embedded computer system, it is a fingerprint lock. After collecting and verifying the user's fingerprint information, it controls the unlocking unit 9 to work, thereby releasing the latch connection between the second cover 3 and the third cover 4.
[0044] The braking unit 10 is designed so that the third cover 4 must be unlocked via fingerprint before the second cover 3 can be manually turned to rotate the first cover 2 and thus open the cup lid from the rim. When the third cover 4 is closed, manually turning either the second or third cover 3 will not rotate the first cover 2 relative to the rim, thus preventing the lid from being opened. Even if the beverage cup is not under anyone's supervision, it is not easy for others to misuse it.
[0045] Specifically, the verification unit 8 includes a rechargeable battery 11 that serves as a power source. The rechargeable battery 11 is electrically connected to a circuit board 12, and the rechargeable battery 11 and the circuit board 12 are mounted on the second inner liner 6. The circuit board 12 also includes electronic devices such as computing chips, storage chips, and data connectors, which are conventional components of embedded computer systems and will not be described in detail here.
[0046] The circuit board 12 is electrically connected to a fingerprint module 13 for receiving fingerprint input operations. The fingerprint module 13 is mounted on the second cover 3. The fingerprint module 13 can be a commercially available fingerprint lock recognition module.
[0047] The fingerprint recognition module 13 is used to accept the input fingerprint, compare the input fingerprint with the fingerprint pre-stored by the owner of the beverage cup, and issue a drive command when the fingerprint comparison is successful. Alternatively, the aforementioned pre-stored fingerprint is stored on the circuit board 12, and the aforementioned fingerprint comparison step is completed by the circuit board 12. That is, the fingerprint recognition module 13 can be used only for collecting fingerprint information.
[0048] The unlocking unit 9 includes a micro motor 14 electrically connected to the circuit board 12. A first bevel gear 15 is installed at the output end of the micro motor 14. The first bevel gear 15 is meshed with a second bevel gear 16. A rotating shaft 17 is installed on the second bevel gear 16. A pulling member 18 is installed on the rotating shaft 17. The rotating shaft 17 is rotatably mounted on a first limiting groove 19. The first limiting groove 19 is mounted on a second inner liner 6. A buckle 20 is slidably installed in the first limiting groove 19. A central shaft 21 is installed on the buckle 20. The central shaft 21 is slidably engaged with a groove on the pulling member 18. A first compression spring 22 is also sleeved on the central shaft 21. One end of the first compression spring 22 is fixedly connected to the pulling member 18, and the other end is fixedly connected to the buckle 20.
[0049] The second cover 3 has an unlocking hole 23, and the inner wall of the third cover 4 has a protrusion 24. The fastener 20 passes through the unlocking hole 23 and engages with the protrusion 24.
[0050] Circuit board 12 controls the micro motor 14 to start, which drives the first bevel gear 15 to rotate. The first bevel gear 15 drives the second bevel gear 16 to rotate, thereby causing the rotating shaft 17 to rotate on the first limiting groove 19. Since a pulling member 18 is also fixedly connected to the rotating shaft 17, the pulling member 18 also rotates with the rotating shaft 17. The shape of the pulling member 18 is similar to a non-standard cam structure. The pulling member 18 pulls the central shaft 21 on the latching member 20, thereby causing the latching member 20 to slide along the first limiting groove 19 and retract into the unlocking hole 23. At this time, the protrusion 24 loses its limiting position. This completes the unlocking of the latching connection between the second cover 3 and the third cover 4. The first compression spring 22 allows the latching member 20 to automatically reset.
[0051] The braking unit 10 includes a second limiting groove 25 installed on the second inner liner 6. A positioning shaft 26 is installed in the second limiting groove 25. A braking component 27 is sleeved on the positioning shaft 26. A second compression spring 28 is sleeved on the positioning shaft 26. One end of the second compression spring 28 is fixedly connected to the braking component 27, and the other end is fixedly connected to the second limiting groove 25.
[0052] The second cover 3 is rotatably and coaxially sleeved on the first cover 2 through the first inner liner 5. The radial outer side of the second cover 3 is provided with a first protruding hinge 30, and a brake through hole 31 corresponding to the brake 27 is provided near the first hinge 30.
[0053] The outer radial surface of the third cover 4 is provided with a cam 33 corresponding to the brake through hole 31, and the contact surface between the brake element 27 and the cam 33 is an inclined surface. The third cover 4 and the second cover 3 are hinged to each other through the cam 33 and the first hinge element 30. The third cover 4 and the second cover 3 are snapped together at one end opposite the cam 33, so that they can be opened and closed to cover the suction nozzle 32.
[0054] The inner wall of the first liner 5 is provided with a second step surface 34. The bottom surface of the outer edge of the first cover 2 is in contact with the second step surface 34. Multiple blocking blocks 35 are provided on the outer edge of the first cover 2. The multiple blocking blocks 35 are equidistantly distributed along the circumference of the first cover 2. A braking groove 36 is formed between two adjacent blocking blocks 35. The braking groove 36 cooperates with the braking component 27.
[0055] Specifically, each side of the cam 33 is provided with a protruding second hinge 37, and the two first hinges 30 are embedded in the gap between the cam 33 and the two second hinges 37 respectively; the second cover 3 and the third cover 4 are hinged to each other through the cam 33, the first hinges 30, the second hinges 37 and the pin 38.
[0056] After the second cover 3 and the third cover 4 are unlocked by the unlocking unit 9, the protrusion 24 on the third cover 4 loses its limiting position, thereby causing the cam 33 and the second hinge 37 on the third cover 4 to rotate around the pin 38. Due to the special shape of the cam 33, when rotating, it passes through the brake through hole 31 and pushes the brake 27 to slide down along the positioning post 26, inserting into the brake groove 36 formed between two adjacent blocking blocks 35. This achieves locking braking between the second cover 3 and the first cover 2. Similarly, the setting of the second compression spring 28 allows the brake 27 to automatically reset.
[0057] After the second cover 3 and the first cover 2 are braked and locked by the braking unit, they cannot rotate relative to each other. At this time, the user can twist the second cover 3 by hand to drive the first cover 2 to rotate, thereby unscrewing the cup lid from the cup opening.
[0058] Conversely, when the third cover 4 is closed, the special shape of the cam 33 prevents the brake 27 from being inserted into the brake groove 36 of the first cover 2. At this time, turning the second cover 3 or the third cover 4 by hand will not cause the first cover 2 to rotate relative to the cup opening.
[0059] The rechargeable battery 11 is also electrically connected to a magnetic charging socket for charging the rechargeable battery 11. The magnetic charging socket is mounted on the second cover 3 and is connected to an external power source for charging.
[0060] User identification information can be digital codes, fingerprint patterns, palm print patterns, iris patterns, gesture animations, or facial expression animations.
[0061] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A safety cup lid for covering the mouth of a cup, characterized in that: The cup lid assembly (1) includes a first lid body (2), a second lid body (3) and a third lid body (4) assembled sequentially from bottom to top. The inner wall of the second lid body (3) is fitted with a first inner liner (5), which is rotatably connected to the first lid body (2). A second inner liner (6) is installed inside the first lid body (2). A cavity (7) is formed between the second inner liner (6) and the second lid body (3). A verification unit (8) for collecting and verifying user identity information is installed inside the cavity (7). An unlocking unit (9) connected to the verification unit (8) is also installed inside the cavity (7). A braking unit (10) is also installed inside the cavity (7). The unlocking unit (9) and the braking unit (10) are located at opposite ends of the same radial direction of the cup lid assembly (1).
2. The safety cup lid according to claim 1, characterized in that: The verification unit (8) includes a rechargeable battery (11) as a power source, the rechargeable battery (11) is electrically connected to a circuit board (12), the rechargeable battery (11) and the circuit board (12) are mounted on a second inner liner (6), the circuit board (12) is electrically connected to a fingerprint module (13) for receiving fingerprint input operations, and the fingerprint module (13) is mounted on a second cover (3).
3. The safety cup lid according to claim 2, characterized in that: The unlocking unit (9) includes a micro motor (14) electrically connected to a circuit board (12). A first bevel gear (15) is mounted on the output end of the micro motor (14). The first bevel gear (15) meshes with a second bevel gear (16). A rotating shaft (17) is mounted on the second bevel gear (16). A pulling member (18) is mounted on the rotating shaft (17). The rotating shaft (17) is rotatably mounted on a first limiting groove (19). The limiting groove (19) is installed on the second inner liner (6). A buckle (20) is slidably installed in the first limiting groove (19). A central shaft (21) is installed on the buckle (20). The central shaft (21) is slidably engaged with the groove on the pull member (18). A first compression spring (22) is also sleeved on the central shaft (21). One end of the first compression spring (22) is fixedly connected to the pull member (18), and the other end is fixedly connected to the buckle (20).
4. The safety cup lid according to claim 3, characterized in that: The second cover (3) has an unlocking hole (23), and the inner wall of the third cover (4) is fitted with a protrusion (24). The buckle (20) passes through the unlocking hole (23) and engages with the protrusion (24).
5. The safety cup lid according to claim 1, characterized in that: The braking unit (10) includes a second limiting groove (25) installed on the second inner liner (6), a positioning shaft (26) is installed in the second limiting groove (25), a braking component (27) is sleeved on the positioning shaft (26), and a second compression spring (28) is sleeved on the positioning shaft (26). One end of the second compression spring (28) is fixedly connected to the braking component (27), and the other end is fixedly connected to the second limiting groove (25).
6. The safety cup lid according to claim 5, characterized in that: The first cover (2) has a symmetrical structure along the central axis (21). The middle part of the first cover (2) is provided with a drinking hole. The outer wall of the first cover (2) is provided with a thread for engaging with the mouth of the beverage cup. The inner wall of the first cover (2) is provided with a first stepped surface (29). The bottom of the second inner liner (6) inserted into the first cover (2) contacts the first stepped surface (29). A sealing ring is also installed between the first cover (2) and the second inner liner (6). The second cover (3) is rotatably coaxially sleeved on the first cover (2) through the first inner liner (5). The radial outer side of the second cover (3) is provided with a first hinge (30) protruding outward, and a brake through hole (31) corresponding to the brake (27) is provided near the first hinge (30). The top surface of the second cover (3) is provided with a central through hole, and a suction nozzle (32) is installed at the central through hole. The suction nozzle (32) is tubular. The second inner liner (6) is provided with a drinking hole in the middle. The upper end of the drinking hole is connected to the mouthpiece (32), and the lower end is connected to the drinking hole of the first cover (2). The top of the second inner liner (6) is inserted into the top surface of the inner wall of the second cover (3), and a sealing ring is installed at the contact point between the two. The radial outer surface of the third cover (4) is provided with a cam (33) corresponding to the brake through hole (31). The contact surface between the brake member (27) and the cam (33) is an inclined surface. The third cover (4) and the second cover (3) are hinged to each other through the cam (33) and the first hinge member (30). The third cover (4) and the second cover (3) are snapped together at one end opposite to the cam (33), so that they can be opened and closed to cover the suction nozzle (32).
7. The safety cup lid according to claim 6, characterized in that: The inner wall of the first liner (5) is provided with a second step surface (34). The bottom surface of the outer edge of the first cover (2) is in contact with the second step surface (34). Multiple blocking blocks (35) are provided on the outer edge of the first cover (2). The multiple blocking blocks (35) are equidistantly distributed along the circumference of the first cover (2). A braking groove (36) is formed between two adjacent blocking blocks (35). The braking groove (36) cooperates with the braking component (27).
8. The safety cup lid according to claim 6, characterized in that: The cam (33) has a second protruding hinge (37) on each side, and the two first hinges (30) are embedded in the gap between the cam (33) and the two second hinges (37) respectively; the second cover (3) and the third cover (4) are hinged to each other by the cam (33), the first hinge (30), the second hinge (37) and the pin (38).
9. The safety cup lid according to claim 2, characterized in that: The rechargeable battery (11) is also electrically connected to a magnetic charging base for charging the rechargeable battery (11), and the magnetic charging base is mounted on the second cover (3).
10. The safety cup lid according to claim 1, characterized in that: The user identity information includes digital codes, fingerprint patterns, palm print patterns, iris patterns, gesture animations, or facial expression animations.