Fingerprint unlocking type water cup provided with waterproof cup cover and use method of fingerprint unlocking type water cup
By incorporating a waterproof ring and alloy wire design, combined with fingerprint recognition technology, the problem of water entering the lid during cleaning is solved. This achieves secure locking and unlocking of the lid, protects the circuit board, and ensures safe use.
Patent Information
- Application Number
- CN202511236082.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-01
- Publication Date
- 2025-11-21
AI Technical Summary
Existing fingerprint-unlocked water cups are prone to water getting into the lid during cleaning, which can damage electronic components such as circuit boards, and they cannot effectively prevent unauthorized opening of the lid.
A waterproof cup lid structure was designed, which utilizes the heat shrinkage properties of alloy wire and the sealing design of the waterproof ring, combined with fingerprint recognition technology, to achieve locking and unlocking of the cup lid, and prevents water from entering the inside of the cup lid through the plug and sealing gasket.
It effectively prevents water from entering the inside of the lid, protecting electronic components such as circuit boards and ensuring that the lid is not damaged during cleaning. At the same time, fingerprint recognition ensures that only authorized users can open it.
Smart Images
Figure CN120982877A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of water cup technology, specifically to a fingerprint-unlocked water cup with a waterproof lid and its usage method. Background Technology
[0002] Lockable lid water bottles are common and popular because they almost never open accidentally or spill water. However, these bottles don't prevent unauthorized opening or even the insertion of unknown substances, threatening the user's health and safety. To avoid this, engineers have applied fingerprint recognition technology to the lid. The lid is only unlocked when the user's fingerprint is successfully scanned. This fingerprint recognition technology requires electronic components such as circuit boards, which, through a transmission mechanism, push a pop-out latch to engage with a slot on the bottle body, thus achieving [locking / locking]. Currently, the locking mechanism between the cup lid and the cup body, along with the locking block and electronic components such as the circuit board, are located inside the cup lid. To allow the locking block to pop out and retract smoothly, a hole needs to be made in the cup lid. The creation of this hole poses a significant safety hazard: when users clean the cup lid, water can easily enter the inside of the cup lid through this hole, causing the electronic components such as the circuit board to get wet or even become unusable. Given this situation, how to make the cup lid and the cup body lockable and unlockable via fingerprint, while preventing water from entering the inside of the cup lid under certain circumstances, such as when cleaning the cup lid, thus preventing the electronic components such as the circuit board from getting wet or becoming unusable, has become an increasingly urgent problem for relevant technical personnel to solve. Summary of the Invention
[0003] To address the aforementioned technical problems, this invention provides a fingerprint-unlocked water cup with a waterproof lid and its usage method.
[0004] A fingerprint-unlocked water cup with a waterproof lid includes a cup body and a lid. The lid comprises a bottom cover, a locking mechanism, and a top cover. The locking mechanism is located above the bottom cover and its upper part engages with the top cover. A locking seat is provided on the upper part of the bottom cover. A first buckle and a second buckle are provided inside the locking mechanism. The first buckle is located on one side of the locking seat, and the second buckle is located on the side of the first buckle away from the locking seat. A first slot is vertically provided on the side of the locking seat near the first buckle, with the lower depth of the first slot greater than its upper depth. A first protrusion is provided at the lower end of the first buckle near the locking seat, and a second slot is provided at the lower end of the first buckle away from the locking seat. A second pivot is provided at the upper end of the first buckle near the locking seat. The second buckle is rotatably connected to the card via a second pivot and has a first hook at the end away from the card seat. The second buckle has a second protrusion at the lower end near the card seat and a third pivot at the end away from the card seat, which is rotatably connected to the card via the third pivot. A second hook is provided on one side of the second protrusion. A tension spring is provided between the second hook and the first hook. A second groove is provided on the upper part of the second hook. A first terminal and a second terminal are provided on one side of the card. There are two sets of the first terminal and the second terminal, which are symmetrically arranged. An alloy wire is provided on the upper part of the card. The alloy wire includes a first alloy wire and a second alloy wire. The end of the second alloy wire is connected to the second terminal and the middle part is hooked to the second groove.
[0005] Furthermore, the bottom cover is symmetrically provided with limiting rods on the upper part, the clip is provided with limiting holes inside, the limiting rods are slidably inserted into the limiting holes, the limiting rods are provided with a second compression spring on the periphery, the two ends of the second compression spring respectively contact the bottom cover and the clip, and the limiting rods are provided with screws on the upper part, the outer diameter of the screw head being larger than the inner diameter of the limiting hole.
[0006] Furthermore, a first insertion hole is provided on the upper part of the bottom cover and one side of the card seat. An insertion rod is slidably disposed inside the first insertion hole. A sealing gasket is provided at the lower end of the insertion rod. A first compression spring is provided around the insertion rod. The two ends of the first compression spring respectively contact the inward portion of the lower part of the first insertion hole and the protruding portion of the upper part of the insertion rod. A pressure rod is provided on the upper part of the bottom cover and one side of the first buckle. A first rotating shaft is provided at the lower end of the pressure rod away from the card seat and is rotatably connected to the card through the first rotating shaft. A first pull groove is provided at the upper end of the pressure rod away from the card seat. The end of the first alloy wire is connected to the first terminal and the middle part is hooked to the first pull groove. The insertion rod is located below the end of the pressure rod near the card seat.
[0007] Furthermore, the alloy wire is made of a material that has the property of "thermal contraction upon energization and reduction upon cooling".
[0008] Furthermore, a waterproof ring is provided around the bottom cover and the clip. The upper part of the waterproof ring is fixedly connected to the clip, and the lower part of the waterproof ring is fixedly connected to the bottom cover. The waterproof ring is made of soft rubber. An annular groove is provided on the upper part of the inner wall of the cup body, and a rubber ring is provided on the lower part of the bottom cover.
[0009] Furthermore, a second insertion hole is provided at the lower part of the bottom cover, and a temperature sensor is installed inside the second insertion hole.
[0010] Furthermore, a battery and a circuit board are disposed between the card and the top cover. The circuit board is located above the battery. A fingerprint module is disposed at the center of the upper part of the circuit board. A screen is disposed on one side of the upper part of the circuit board. The fingerprint module and the screen are exposed on the upper part of the top cover. The battery, fingerprint module, screen, first terminal, and second terminal are all electrically connected to the circuit board. A charging port is disposed on one side of the top cover and is electrically connected to the battery.
[0011] Furthermore, the method of using a fingerprint-unlocked water cup with a waterproof lid is as follows: (1) In the initial state, the cup lid and the cup body are locked. At this time, the first protrusion is engaged with the lower part of the first slot, the second protrusion is engaged with the second slot, the second spring is compressed, the waterproof ring is compressed and protrudes outward, and the protruding part is engaged with the annular groove. The shearing force formed by the annular groove on the protruding part of the waterproof ring keeps the cup lid and the cup body locked. The rubber ring is in contact with the inner wall of the cup body. The first spring is relaxed, so that the insertion rod is at the highest point. The sealing gasket fits with the bottom cover and seals the first insertion hole. At the same time, the temperature sensor monitors the internal temperature of the cup body, and the temperature is displayed on the screen in real time. (2) When it is necessary to open the cover, press the finger with the pre-recorded fingerprint on the surface of the fingerprint module. After the fingerprint module compares with the pre-recorded fingerprint, the circuit board starts the opening instruction according to the pre-written program. (3) The first terminal is energized for a certain period of time. The temperature of the first alloy wire rises after being energized. The material properties of the first alloy wire cause it to shrink. During the shrinkage of the first alloy wire, the first groove is pulled and the pressure rod is rotated. The pressure rod moves down and presses down the insertion rod and the first pressure spring while rotating near the card seat. The sealing gasket leaves the bottom cover and the first insertion hole is connected to release the high pressure generated inside the cup body due to the high water temperature, so as to prevent the cup lid from being ejected by the high pressure and causing accidental damage. (4) After the second terminal is energized for a certain period of time, the temperature of the second alloy wire rises after being energized. The material properties of the second alloy wire cause it to shrink. During the shrinkage of the second alloy wire, the second pull groove is pulled and the second buckle is rotated. The rotation of the second buckle causes the second protrusion to separate from the second groove. At this time, the first buckle is no longer limited by the second buckle. The second spring pops out and moves the clip upward until the clip touches the screw. During this process, the lower part of the first groove moves the first protrusion to the upper transition position and makes the first buckle rotate. The distance between the first hook and the second hook increases. The spring is in a stretched state. The spring pulls the second hook so that the second protrusion contacts the lower surface of the first buckle. The movement of the first buckle and the second buckle ends. (5) The upward movement of the clip causes the waterproof ring, which was bulging outward due to compression, to relax. The waterproof ring is released from the engagement with the annular groove. Hold the top cover and pull it outward to remove the cup lid smoothly. (6) After the first terminal and the second terminal are energized for a certain period of time, the power is turned off. The first alloy wire and the second alloy wire gradually return to normal temperature and are restored from the contracted state. This restoration causes the first alloy wire and the second alloy wire to change from the tensioned state to the relaxed state. (7) When the first alloy wire is relaxed, the pressure rod is no longer under its tension, the first compression spring pops out and moves the insertion rod upward until the sealing gasket re-fits the bottom cover and seals the first insertion hole; (8) When it is necessary to close the lid, place the lid back on the opening of the cup body and press down the top cover to lock the lid and the cup body again. During the pressing process, under the sliding limit of the limit rod, the top cover and the clip move vertically down as a whole. The first protrusion slides down along the upper part of the first slot. When it moves to the transition position between the upper and lower parts of the first slot, the tension spring pulls the first hook, so that the first hook rotates to engage the first protrusion with the lower part of the first slot. During the process of the first protrusion sliding down along the upper part of the first slot to engage with the lower part of the first slot, the lower surface of the first hook slides relative to the second protrusion. When the first protrusion engages with the lower part of the first slot, the tension spring pulls the second hook, so that the second hook rotates to engage the second protrusion with the second slot. At the same time, the second slot tightens the loose second alloy wire. Thus, the clip and the bottom cover are locked again. (9) The downward movement of the clip causes the waterproof ring to re-bulge outward due to compression. The bulging part engages with the annular groove. The shearing force formed by the annular groove on the bulging part of the waterproof ring keeps the cup lid locked to the cup body. This shearing force ensures that the cup lid will not detach from the cup body even if it is pulled outward. (10) When the cup lid needs to be cleaned, it can be rinsed directly with water. The waterproof ring, the fixed connection of the clip and the bottom cover, and the soft rubber material, plus the sealing gasket to seal the first socket, prevent water from entering the inside of the cup lid, thereby achieving continuous protection of the electronic components inside the cup lid.
[0012] The beneficial effects of the fingerprint-unlocked water cup with a waterproof lid and its method of use according to the present invention are as follows: 1. The waterproof ring and annular groove provide a good structural foundation for locking and unlocking the cup lid and the cup body. The card holder, first buckle, second buckle, tension spring and second alloy wire provide a good structural foundation for locking and unlocking the card and the bottom cover. The fingerprint module and circuit board provide a good structural foundation for fingerprint enrollment, recognition and sequential power supply of the first terminal and the second terminal. Thus, it effectively meets the usage requirement of "making the cup lid and the cup body lockable and unlockable by fingerprint". 2. The waterproof ring, the fastener, and the bottom cover are fixed together with the soft rubber material. Combined with the sealing gasket for the first insertion hole, the waterproof ring effectively protects the electronic components inside the cup lid. It effectively prevents water from entering the cup lid during cleaning, which could cause the circuit board and other electronic components to get wet or even be damaged. 3. The insert rod, the first compression spring, the pressure rod, and the first alloy wire provide a good structural foundation for the up-and-down movement of the sealing gasket, effectively ensuring the release of high pressure inside the cup body before opening the lid, effectively preventing the entire lid from being ejected by the high pressure, and effectively ensuring the safety of use. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below, but this is not a limitation on the scope of protection of the present invention.
[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the cup lid of the present invention (top lid not shown); Figure 3 This is a schematic diagram of the internal structure of the cup lid of the present invention; Figure 4 This is a top view of the card component of the present invention; Figure 5 This is a schematic diagram (a) of the bottom cover and its upper part of the present invention when the cover is in the closed state. Figure 6 This is a schematic diagram (II) of the structure of the bottom cover and its upper part when the cover is closed. Figure 7 A cross-sectional view (a) of the bottom cover and its upper part structure of the present invention. Figure 8 This is a cross-sectional view (II) of the bottom cover and its upper part structure of the present invention. Figure 9 This is a schematic diagram of the bottom cover and its upper part of the present invention in the open state. Figure 10This is a schematic diagram showing the connection state between the cup lid and the cup body when the lid is closed (some structures have been hidden for clarity).
[0015] The components are as follows: 1-Top cover, 2-Cup body, 3-Waterproof ring, 4-Card, 5-Charging port, 6-Screen, 7-Fingerprint module, 8-Circuit board, 9-Second terminal, 10-Rubber ring, 11-Battery, 12-Bottom cover, 13-First alloy wire, 14-Second alloy wire, 15-First terminal, 16-Limiting rod, 17-Card holder, 18-Tension spring, 19-Second buckle, 20-First buckle, 21-First pivot, 22-Pressure rod, 23-Insertion rod, 24-Temperature sensor, 25-Second pivot, 26-Second pull groove, 27-Third pivot, 28-First pull groove, 29-First card slot, 30-First protrusion, 31-Second protrusion, 32-First insertion hole, 33-Second hook, 34-Second card slot, 35-First hook, 36-Annular groove, 37-Sealing gasket. Detailed Implementation
[0016] To make the explanation clearer, the fingerprint-unlocked water cup with a waterproof lid and its usage method of the present invention will be further described in conjunction with the accompanying drawings.
[0017] A fingerprint-unlocked water cup with a waterproof lid includes a cup body 2 and a lid. The lid comprises a bottom cover 12, a locking element 4, and a top cover 1. The locking element 4 is located above the bottom cover 12, and its upper part engages with the top cover 1. A locking seat 17 is provided on the upper part of the bottom cover 12. A first buckle 20 and a second buckle 19 are provided inside the locking element 4. The first buckle 20 is located on one side of the locking seat 17, and the second buckle 19 is located on the side of the first buckle 20 away from the locking seat 17. A first slot 29 is vertically provided on the side of the locking seat 17 near the first buckle 20, with the lower depth of the first slot 29 greater than the upper depth. A first protrusion 30 is provided at the lower end of the first buckle 20 near the locking seat 17, and a second slot 34 is provided at the lower end of the first buckle 20 away from the locking seat 17. A second pivot 25 is provided at the upper end of the first buckle 20 near the locking seat 17. The second buckle 19 is rotatably connected to the card 4 via a second pivot 25. A first hook 35 is provided at the end away from the card seat 17. A second protrusion 31 is provided at the lower part of the second buckle 19 near the card seat 17. A third pivot 27 is provided at the end away from the card seat 17 and is rotatably connected to the card 4 via the third pivot 27. A second hook 33 is provided on one side of the second protrusion 31. A tension spring 18 is provided between the second hook 33 and the first hook 35. A second groove 26 is provided on the upper part of the second hook 19. A first terminal 15 and a second terminal 9 are provided on one side of the card 4. The first terminal 15 and the second terminal 9 are both in two sets and are symmetrically arranged. An alloy wire is provided on the upper part of the card 4. The alloy wire includes a first alloy wire 13 and a second alloy wire 14. The end of the second alloy wire 14 is connected to the second terminal 9, and the middle part is hooked to the second groove 26.
[0018] Furthermore, the bottom cover 12 is symmetrically provided with limiting rods 16 on the upper part, the clamp 4 is provided with limiting holes, the limiting rods 16 are slidably inserted into the limiting holes, the limiting rods 16 are provided with a second compression spring on the periphery, the two ends of the second compression spring respectively contact the bottom cover 12 and the clamp 4, and the limiting rods 16 are provided with screws on the upper part, the outer diameter of the screw head is larger than the inner diameter of the limiting hole.
[0019] Furthermore, a first insertion hole 32 is provided on the upper part of the bottom cover 12 and one side of the card seat 17. An insertion rod 23 is slidably disposed inside the first insertion hole 32. A sealing gasket 37 is provided at the lower end of the insertion rod 23. A first compression spring is provided around the insertion rod 23. The two ends of the first compression spring respectively contact the inward portion of the lower part of the first insertion hole 32 and the protruding portion of the upper part of the insertion rod 23. A pressure rod 22 is provided on the upper part of the bottom cover 12 and one side of the first buckle 20. A first rotating shaft 21 is provided at the lower end of the pressure rod 22 away from the card seat 17 and is rotatably connected to the card 4 through the first rotating shaft 21. A first pull groove 28 is provided at the upper end of the pressure rod 22 away from the card seat 17. The end of the first alloy wire 13 is connected to the first terminal 15 and the middle part is hooked to the first pull groove 28. The insertion rod 23 is located below the end of the pressure rod 22 near the card seat 17.
[0020] Furthermore, the alloy wire is made of a material that has the property of "thermal contraction upon energization and reduction upon cooling".
[0021] Furthermore, a waterproof ring 3 is provided around the bottom cover 12 and the clip 4. The upper part of the waterproof ring 3 is fixedly connected to the clip 4, and the lower part of the waterproof ring 3 is fixedly connected to the bottom cover 12. The waterproof ring 3 is made of soft rubber. An annular groove 36 is provided on the upper part of the inner wall of the cup body 2, and a rubber ring 10 is provided on the lower part of the bottom cover 12.
[0022] Furthermore, a second insertion hole is provided at the lower part of the bottom cover 12, and a temperature sensor 24 is installed inside the second insertion hole.
[0023] Furthermore, a battery 11 and a circuit board 8 are disposed between the card 4 and the top cover 1. The circuit board 8 is located above the battery 11. A fingerprint module 7 is disposed at the center of the upper part of the circuit board 8. A screen 6 is disposed on one side of the upper part of the circuit board 8. The fingerprint module 7 and the screen 6 are exposed on the upper part of the top cover 1. The battery 11, the fingerprint module 7, the screen 6, the first terminal 15, and the second terminal 9 are all electrically connected to the circuit board 8. A charging port 5 is disposed on one side of the top cover 1. The charging port 5 is electrically connected to the battery 11.
[0024] Furthermore, the method of using a fingerprint-unlocked water cup with a waterproof lid is as follows: (1) In the initial state, the cup lid and the cup body 2 are locked. At this time, the first protrusion 30 is engaged with the lower part of the first slot 29, the second protrusion 31 is engaged with the second slot 34, the second spring is compressed, the waterproof ring 3 is compressed and protrudes outward, and the protruding part is engaged with the annular groove 36. The shearing force formed by the annular groove 36 on the protruding part of the waterproof ring 3 keeps the cup lid and the cup body 2 locked. The rubber ring 10 is in contact with the inner wall of the cup body 2. The first spring is relaxed, so that the insertion rod 23 is at the highest point. The sealing gasket 37 is attached to the bottom cover 12 and seals the first insertion hole 32. At the same time, the temperature sensor 24 monitors the internal temperature of the cup body 2, and the temperature is displayed in real time on the screen 6. (2) When it is necessary to open the cover, press the finger with the pre-recorded fingerprint on the surface of the fingerprint module 7. After the fingerprint module 7 is compared with the pre-recorded fingerprint, the circuit board 8 starts the opening instruction according to the pre-written program. (3) The first terminal 15 is energized for a certain period of time. The temperature of the first alloy wire 13 rises after being energized. The material properties of the first alloy wire 13 cause it to shrink. During the shrinkage process, the first alloy wire 13 pulls the first groove 28 and makes the pressure rod 22 rotate. While the pressure rod 22 rotates near the card seat 17, it moves down and presses down the insertion rod 23 and the first pressure spring. The sealing gasket 37 leaves the bottom cover 12, and the first insertion hole 32 is connected to release the high pressure generated inside the cup body 2 due to the high water temperature, so as to prevent the cup cover from being ejected by the high pressure and causing accidental damage. (4) After the second terminal 9 is energized for a certain period of time, the temperature of the second alloy wire 14 increases after being energized. Due to the material properties of the second alloy wire 14, it shrinks. During the shrinkage process, the second alloy wire 14 pulls the second pull groove 26 and makes the second buckle 19 rotate. The rotation of the second buckle 19 causes the second protrusion 31 to separate from the second groove 34. At this time, the first buckle 20 is no longer limited by the second buckle 19. The second spring pops out and moves the clip 4 upward until the clip 4 touches the screw. During this process, the transition position from the lower part of the first groove 29 to the upper part moves the first protrusion 30 and makes the first buckle 20 rotate. The distance between the first hook 35 and the second hook 33 increases. The tension spring 18 is in a stretched state. The tension spring 18 pulls the second hook 33, so that the second protrusion 31 contacts the lower surface of the first buckle 20. The movement of the first buckle 20 and the second buckle 19 ends. (5) The upward movement of the clip 4 causes the waterproof ring 3, which was bulging outward due to compression, to become relaxed. The clip between the waterproof ring 3 and the annular groove 36 is released. The cup lid can be easily removed by holding the top cover 1 and pulling it outward. (6) After the first terminal 15 and the second terminal 9 are energized for a certain period of time, the power is turned off. The first alloy wire 13 and the second alloy wire 14 gradually return to normal temperature and are restored from the contracted state. This restoration causes the first alloy wire 13 and the second alloy wire 14 to change from the tensioned state to the relaxed state. (7) When the first alloy wire 13 is relaxed, the pressure rod 22 is no longer under its tension, the first compression spring pops out and moves the insertion rod 23 upward until the sealing gasket 37 re-fits the bottom cover 12 and seals the first insertion hole 32. (8) When it is necessary to close the lid, place the lid back into the opening of the cup body 2 and press down the top cover 1 to lock the lid and the cup body 2. During this pressing process, under the sliding limit of the limiting rod 16, the top cover 1 and the clip 4 move vertically downward as a whole. The first protrusion 30 slides down along the upper part of the first slot 29. When it moves to the transition position between the upper and lower parts of the first slot 29, the tension spring 18 pulls the first hook 35, causing the first hook 20 to rotate until the first protrusion 30 and the first slot 29 are in contact. During the lower part of the latching, as the first protrusion 30 slides down from the upper part of the first slot 29 to latching with the lower part of the first slot 29, the lower surface of the first buckle 20 slides relative to the second protrusion 31. When the first protrusion 30 latches with the lower part of the first slot 29, the tension spring 18 pulls the second hook 33, causing the second buckle 19 to rotate until the second protrusion 31 latches with the second slot 34. At the same time, the second pull groove 26 tightens the loose second alloy wire 14, thus locking the latch 4 and the bottom cover 12 again. (9) The downward movement of the clip 4 causes the waterproof ring 3 to re-protrude due to compression, and the protruding part engages with the annular groove 36. The shearing force formed by the annular groove 36 on the protruding part of the waterproof ring 3 keeps the cup lid locked to the cup body 2. This shearing force ensures that the cup lid will not detach from the cup body 2 even if it is pulled outward. (10) When the cup lid needs to be cleaned, it can be rinsed directly with water. The waterproof ring 3 is fixedly connected to the clip 4 and the bottom cover 12, and its soft rubber material, plus the sealing gasket 37 sealing the first socket 32, prevent water from entering the inside of the cup lid, thereby achieving continuous protection of the electronic components inside the cup lid.
[0025] The working principle of the fingerprint unlocking water cup with waterproof lid and its usage method of the present invention is as follows: by performing the above usage method steps (1)-(9), fingerprint unlocking and locking of the lid and the cup body 2 can be achieved. By performing step (10), the lid can be cleaned with confidence without worrying about water entering the lid and causing electronic components such as the circuit board 8 to get wet or even be scrapped.
[0026] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions conceived without inventive effort should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.
Claims
1. A fingerprint-unlockable water cup with a waterproof lid, comprising a cup body and a lid, characterized in that: The cup lid includes a bottom cover, a locking element, and a top cover. The locking element is located above the bottom cover and its upper part engages with the top cover. A locking seat is provided on the upper part of the bottom cover. A first buckle and a second buckle are provided inside the locking element. The first buckle is located on one side of the locking seat, and the second buckle is located on the side of the first buckle away from the locking seat. A first slot is vertically provided on the side of the locking seat near the first buckle, and the lower depth of the first slot is greater than the upper depth. A first protrusion is provided at the lower end of the first buckle near the locking seat, and a second slot is provided at the lower end away from the locking seat. A second pivot is provided at the upper end of the first buckle near the locking seat, and is rotatably connected to the locking element through the second pivot. A first hook is provided at the end away from the card seat. A second hook has a second protrusion at the lower end near the card seat and a third pivot at the end away from the card seat, which is rotatably connected to the card. A second hook is provided on one side of the second protrusion. A tension spring is provided between the second hook and the first hook. A second groove is provided on the upper part of the second hook. A first terminal and a second terminal are provided on one side of the card. There are two sets of the first terminal and the second terminal, which are symmetrically arranged. An alloy wire is provided on the upper part of the card. The alloy wire includes a first alloy wire and a second alloy wire. The end of the second alloy wire is connected to the second terminal and the middle part is hooked to the second groove.
2. A fingerprint-unlocked water cup with a waterproof lid according to claim 1, characterized in that, The bottom cover is symmetrically provided with limiting rods on the upper part, and the clip is provided with limiting holes inside. The limiting rods are slidably inserted into the limiting holes. A second compression spring is provided around the limiting rods. The two ends of the second compression spring contact the bottom cover and the clip respectively. A screw is provided on the upper part of the limiting rods. The outer diameter of the screw head is larger than the inner diameter of the limiting hole.
3. A fingerprint-unlocked water cup with a waterproof lid according to claim 1, characterized in that, A first insertion hole is provided on the upper part of the bottom cover and one side of the card seat. An insertion rod is slidably disposed inside the first insertion hole. A sealing gasket is provided at the lower end of the insertion rod. A first compression spring is provided around the insertion rod. The two ends of the first compression spring respectively contact the inward portion of the lower part of the first insertion hole and the protruding portion of the upper part of the insertion rod. A pressure rod is provided on the upper part of the bottom cover and one side of the first buckle. A first rotating shaft is provided at the lower end of the pressure rod away from the card seat and is rotatably connected to the card through the first rotating shaft. A first pull groove is provided at the upper end of the pressure rod away from the card seat. The end of the first alloy wire is connected to the first terminal and the middle part is hooked to the first pull groove. The insertion rod is located below the end of the pressure rod near the card seat.
4. A fingerprint-unlocked water cup with a waterproof lid according to claim 1, characterized in that, The alloy wire is made of a material that has the property of "thermal contraction upon energization and reduction upon cooling".
5. A fingerprint-unlocking water cup with a waterproof lid according to claim 1, characterized in that, A waterproof ring is provided around the bottom cover and the clip. The upper part of the waterproof ring is fixedly connected to the clip, and the lower part of the waterproof ring is fixedly connected to the bottom cover. The waterproof ring is made of soft rubber. An annular groove is provided on the upper part of the inner wall of the cup body, and a rubber ring is provided on the lower part of the bottom cover.
6. A fingerprint-unlocking water cup with a waterproof lid according to claim 1, characterized in that, A second insertion hole is provided at the bottom of the bottom cover, and a temperature sensor is installed inside the second insertion hole.
7. A fingerprint-unlocking water cup with a waterproof lid according to claim 1, characterized in that, A battery and a circuit board are disposed between the card and the top cover. The circuit board is located above the battery. A fingerprint module is disposed at the center of the upper part of the circuit board. A screen is disposed on one side of the upper part of the circuit board. The fingerprint module and the screen are exposed on the upper part of the top cover. The battery, fingerprint module, screen, first terminal, and second terminal are all electrically connected to the circuit board. A charging port is disposed on one side of the top cover and is electrically connected to the battery.
8. A fingerprint-unlocking water cup with a waterproof lid according to claim 1, characterized in that, Its usage method is as follows: (1) In the initial state, the cup lid and the cup body are locked. At this time, the first protrusion is engaged with the lower part of the first slot, the second protrusion is engaged with the second slot, the second spring is compressed, the waterproof ring is compressed and protrudes outward, and the protruding part is engaged with the annular groove. The shearing force formed by the annular groove on the protruding part of the waterproof ring keeps the cup lid and the cup body locked. The rubber ring is in contact with the inner wall of the cup body. The first spring is relaxed, so that the insertion rod is at the highest point. The sealing gasket fits with the bottom cover and seals the first insertion hole. At the same time, the temperature sensor monitors the internal temperature of the cup body, and the temperature is displayed on the screen in real time. (2) When it is necessary to open the cover, press the finger with the pre-recorded fingerprint on the surface of the fingerprint module. After the fingerprint module compares with the pre-recorded fingerprint, the circuit board starts the opening instruction according to the pre-written program. (3) The first terminal is energized for a certain period of time. The temperature of the first alloy wire rises after being energized. The material properties of the first alloy wire cause it to shrink. During the shrinkage of the first alloy wire, the first groove is pulled and the pressure rod is rotated. The pressure rod moves down and presses down the insertion rod and the first pressure spring while rotating near the card seat. The sealing gasket leaves the bottom cover and the first insertion hole is connected to release the high pressure generated inside the cup body due to the high water temperature, so as to prevent the cup lid from being ejected by the high pressure and causing accidental damage. (4) After the second terminal is energized for a certain period of time, the temperature of the second alloy wire rises after being energized. The material properties of the second alloy wire cause it to shrink. During the shrinkage of the second alloy wire, the second pull groove is pulled and the second buckle is rotated. The rotation of the second buckle causes the second protrusion to separate from the second groove. At this time, the first buckle is no longer limited by the second buckle. The second spring pops out and moves the clip upward until the clip touches the screw. During this process, the lower part of the first groove moves the first protrusion to the upper transition position and makes the first buckle rotate. The distance between the first hook and the second hook increases. The spring is in a stretched state. The spring pulls the second hook so that the second protrusion contacts the lower surface of the first buckle. The movement of the first buckle and the second buckle ends. (5) The upward movement of the clip causes the waterproof ring, which was bulging outward due to compression, to relax. The waterproof ring is released from the engagement with the annular groove. Hold the top cover and pull it outward to remove the cup lid smoothly. (6) After the first terminal and the second terminal are energized for a certain period of time, the power is turned off. The first alloy wire and the second alloy wire gradually return to normal temperature and are restored from the contracted state. This restoration causes the first alloy wire and the second alloy wire to change from the tensioned state to the relaxed state. (7) When the first alloy wire is relaxed, the pressure rod is no longer under its tension, the first compression spring pops out and moves the insertion rod upward until the sealing gasket re-fits the bottom cover and seals the first insertion hole; (8) When it is necessary to close the lid, place the lid back on the opening of the cup body and press down the top cover to lock the lid and the cup body again. During the pressing process, under the sliding limit of the limit rod, the top cover and the clip move vertically down as a whole. The first protrusion slides down along the upper part of the first slot. When it moves to the transition position between the upper and lower parts of the first slot, the tension spring pulls the first hook, so that the first hook rotates to the point where the first protrusion engages with the lower part of the first slot. During the process of the first protrusion sliding down along the upper part of the first slot to engaging with the lower part of the first slot, the lower surface of the first hook slides relative to the second protrusion. When the first protrusion engages with the lower part of the first slot, the tension spring pulls the second hook, so that the second hook rotates to the point where the second protrusion engages with the second slot. At the same time, the second slot tightens the loose second alloy wire. Thus, the clip and the bottom cover are locked again. (9) The downward movement of the clip causes the waterproof ring to re-bulge outward due to compression. The bulging part engages with the annular groove. The shearing force formed by the annular groove on the bulging part of the waterproof ring keeps the cup lid locked to the cup body. This shearing force ensures that the cup lid will not detach from the cup body even if it is pulled outward. (10) When the cup lid needs to be cleaned, it can be rinsed directly with water. The waterproof ring, the fixed connection of the clip and the bottom cover, and the soft rubber material, plus the sealing gasket to seal the first socket, prevent water from entering the inside of the cup lid, thereby achieving continuous protection of the electronic components inside the cup lid.