A safe water cup based on fingerprint identification
By combining a fingerprint recognition module with a transmission actuator, the security and convenience of the water cup are improved, ensuring that only authorized users can open it. This solves the problem of traditional water cups being prone to lost keys or easily cracked passwords, and provides stable dual locking and clear operation feedback.
Patent Information
- Application Number
- CN202610750396.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-28
- Publication Date
- 2026-08-25
AI Technical Summary
Traditional water cups have physical keys that are easy to lose or forget, and passwords that are easy to see or crack. They are not convenient to use and their security and hygiene are difficult to guarantee.
The system uses a fingerprint recognition module to verify the user's identity and a transmission actuator to release the locking mechanism's limit, achieving a double lock on the dust cover and the bottle body. Combined with the mechanical structure and motor-driven gear transmission, it ensures that only authorized users can open the water cup.
It improves the safety and convenience of the water cup, prevents others from taking it without permission, ensures personal hygiene, and has an integrated and stable operating process, avoiding the risks of misoperation and false locking.
Smart Images
Figure CN122623922A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of personal drinking water container technology, and in particular to a secure water cup based on fingerprint recognition. Background Technology
[0002] In daily life, people are increasingly concerned about the safety and hygiene of their personal belongings. For water cups, especially for users with specific needs, it's important to ensure that the contents cannot be accessed by others. Traditional solutions include water cups with physical locks or smart water cups with combination locks. However, these solutions have significant drawbacks: physical keys are easily lost or forgotten, and combination locks are vulnerable to being seen or cracked; both also lack ease of use. Summary of the Invention
[0003] The purpose of this invention is to provide a secure water cup based on fingerprint recognition to solve the problems existing in the prior art and improve the security of water cup use.
[0004] To achieve the above objectives, the present invention provides the following solution: This invention provides a fingerprint-based secure water cup, comprising a bottle body and a cap assembly, wherein the cap assembly includes: The bottle cap body has a drinking channel that communicates with the bottle opening of the bottle body, and the end of the drinking channel away from the bottle opening is the drinking outlet; A lid, which is fixedly connected to the bottle cap body, and the drinking spout is located above the lid; The locking mechanism is movably mounted on the bottle cap body and has a locked position and a released position. A fingerprint recognition module is fixedly mounted on the locking mechanism to verify the user's fingerprint and generate a control signal; A dust cover is hinged to the lid via a hinge shaft and is used to cover the drinking spout. A torsion spring is provided between the dust cover and the lid. One end of the torsion spring abuts against the lid and the other end abuts against the dust cover. The dust cover has a locking part that engages with the locking mechanism to keep it closed. A transmission actuator is disposed within the bottle cap body and electrically connected to the control unit; the transmission actuator is capable of restricting the locking mechanism to the locked position in a first state, and allows the locking mechanism to move from the locked position to the released position in a second state; The control unit, wherein the fingerprint recognition module and the transmission actuator are respectively signal-connected to the control unit; After successful verification, the fingerprint recognition module controls the transmission actuator to release the limiting position of the locking mechanism, allowing the locking mechanism to be operated from the locked position to the released position under external force. This releases the locking mechanism from the locking part of the dust cover, allowing the dust cover to open under the elastic force of the torsion spring.
[0005] Preferably, the transmission actuator includes a motor, a gear transmission component driven by the motor, and a gear transmission limiting component driven by the gear transmission component; the drinking water channel is located inside a cylindrical drinking pipe, the gear transmission limiting component is arc-shaped, and the gear transmission limiting component rotates with the outer wall of the drinking pipe; The gear transmission limiting component is provided with a first protrusion; In the first state, the first protrusion holds the locking mechanism in the locked position, preventing the locking mechanism from moving to the released position; The motor can drive the gear transmission component to rotate according to the control signal, thereby driving the gear transmission limiting component to rotate, causing the first protrusion to deviate from the locking mechanism, thereby releasing the limiting of the locking mechanism.
[0006] Preferably, the gear transmission component is an incomplete gear, and the gear transmission limiting component is provided with teeth that mesh with the gear transmission component.
[0007] Preferably, the locking mechanism includes a button lock and a first spring. A fixed shaft is fixedly provided on the cover. A sliding groove is provided on the button lock corresponding to the fixed shaft. A placement groove is also provided on the cover corresponding to the button lock. The depth direction of the placement groove is parallel to the pressing direction of the button lock. The sliding groove and the fixed shaft slide in cooperation along the pressing direction of the button lock. Both ends of the fixed shaft slide in cooperation with the corresponding sliding grooves. One end of the first spring abuts against the cover and the other end abuts against the button lock. The button lock is provided with a hook for engaging with the locking part of the dust cover. The end of the hook near the gear transmission limiting member is held or avoided by the first protrusion of the gear transmission limiting member. The fingerprint recognition module is fixedly provided on the pressing surface of the button lock.
[0008] Preferably, the bottle cap assembly further includes a prompting device, which is electrically connected to the control unit and is used to issue a prompting signal when the fingerprint recognition module verifies the fingerprint and / or the transmission actuator releases its limit.
[0009] Preferably, the bottle cap body is connected to the bottle body by threads; The top surface of the bottle body has a circular arc groove that gradually deepens, and the deep end of the circular arc groove extends axially to form a limiting blind hole. The cap bracket is provided with a movable pin that can move axially. When the cap body and the bottle body are tightened, the protruding end of the movable pin slides along the arc groove and finally gets into the limiting blind hole to lock the cap assembly and the bottle body. The bottom of the gear transmission limiting component is provided with a second protrusion; The bottle cap assembly further includes a fastening cap and a first elastic element, the fastening cap being fitted onto the movable pin, and the first elastic element providing the movable pin with a tendency to retract from the limiting blind hole; In the locked position, the second protrusion of the gear transmission limiting member presses down on the fastening cap, so that the movable pin overcomes the elastic force of the first elastic member and remains locked in the limiting blind hole; When the motor drives the gear transmission limiting member to rotate to release the limiting of the locking mechanism according to the control signal, the second protrusion rotates synchronously to release the pressure on the fastening cap, and the movable pin retracts under the action of the first elastic member, so that its protruding end exits the limiting blind hole, thereby allowing the bottle cap assembly to rotate and unscrew relative to the bottle body.
[0010] Preferably, the protruding end of the movable pin is provided with a square protrusion, and the entrance of the limiting blind hole is provided with a square groove section that matches the shape of the square protrusion. When the movable pin is engaged in the limiting blind hole, the square protrusion and the square groove section cooperate to prevent relative rotation between the bottle cap assembly and the bottle body.
[0011] Preferably, one end of the second protrusion of the gear transmission limiting member is provided with an inclined surface. During the process of the gear transmission limiting member changing from the second state to the first state, the inclined surface on the second protrusion first contacts the tight-fitting cap, so that the second protrusion gradually presses down on the tight-fitting cap.
[0012] Preferably, after the control unit controls the motor to rotate forward to drive the gear transmission limiting member to rotate to release the limit, the control unit controls the motor to rotate in reverse to reset after a preset time interval.
[0013] Preferably, it further includes a spring compartment, the movable pin passes through the spring compartment, the movable pin is provided with a limiting ring located inside the spring compartment, and the movable pin is also fitted with a second elastic element, one end of the second elastic element is fixedly connected to the fastening cap, and the other end abuts against the top surface of the limiting ring; one end of the first elastic element abuts against the bottle cap body, and the other end abuts against the bottom surface of the spring compartment.
[0014] The present invention achieves the following technical effects compared to the prior art: This invention provides a fingerprint-based security water cup that uses fingerprint recognition as the sole unlocking and authentication method, fundamentally solving the security risks of traditional physical keys being easily lost and passwords being easily spied on or cracked. The uniqueness of biometric features ensures that only authorized users can open the water cup, effectively preventing others from taking the beverage inside and greatly protecting personal hygiene and the safety of personal belongings. Through a single fingerprint verification action, the control unit can simultaneously control the transmission actuator, releasing the double lock on the dust cover locking mechanism and the bottle body connection locking mechanism (i.e., the movable pin) in one go. After authentication, the user can directly open the dust cover to drink, and can seamlessly unscrew the entire cap assembly for refilling water or cleaning. The operation process is highly integrated, smooth, and natural, greatly improving the convenience and efficiency of use.
[0015] The locking mechanism is held in the locked position by the first protrusion on the gear-driven limiting component, firmly locking the dust cap's locking part. This purely mechanical locking state does not rely on continuous power, ensuring stability and reliability. Unlocking requires a motor-driven mechanism to release the physical limit, with a clear and unambiguous state, avoiding the risk of misoperation or false locking. The transmission actuator uses a motor-driven incomplete gear in conjunction with a toothed arc-shaped gear-driven limiting component, resulting in a compact structure and precise transmission. By controlling the forward and reverse rotation of the motor, the rotation angle of the gear-driven limiting component can be precisely controlled, thus achieving reliable maintenance and accurate release of the locked state. It can also automatically reset, preparing for the next locking, resulting in strong system stability. The locking mechanism automatically locks when the cap is tightened through the cooperation of the movable pin, the arc-shaped groove on the bottle body, and the limiting blind hole. The second protrusion on the gear-driven limiting component simultaneously presses down on the movable pin to maintain the locked state. This design prevents the cap assembly from rotating relative to the bottle body without verified unlocking, achieving physical anti-disassembly and further enhancing overall security. The combination of the square protrusion and the square groove effectively prevents relative rotation, resulting in a more secure locking effect. By incorporating prompting devices (such as indicator lights and buzzers), clear visual and auditory feedback is provided to the user when fingerprint verification is successful or the mechanism unlocks, making the operation intuitive and reassuring. Simultaneously, the beveled design on the second protrusion ensures a smooth reset and locking process, avoiding rigid impacts. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the fingerprint recognition-based security water cup of the present invention; Figure 2 This is an exploded view of the fingerprint recognition-based security water cup of the present invention; Figure 3 This is a partial structural diagram of the fingerprint recognition-based secure water cup of the present invention; Figure 4 This is a top view of the fingerprint recognition-based security water cup of the present invention; Figure 5 for Figure 4 AA section view; Figure 6 for Figure 4 BB cross-sectional view; Figure 7 for Figure 6 A magnified view of a section at point B in the middle; Figure 8 This is a schematic diagram of the bottle body of the fingerprint recognition-based security water cup of the present invention; In the diagram: 100, bottle body; 101, arc groove; 102, limiting blind hole; 200. Bottle cap assembly; 21. Bottle cap body; 211. Drinking tubing; 22. Cap; 23. Button lock; 231. Fixed shaft; 232. First spring; 233. Hook; 234. Slide groove; 24. Fingerprint recognition module; 251. Hinge shaft; 252. Torsion spring; 253. Locking part; 261. Motor; 262. Gear transmission component; 263. Gear transmission limit component; 2631. First protrusion; 2632. Second protrusion; 27. Control unit; 271. Rechargeable battery; 272. USB charging interface; 273. USB sealing plug; 281. Movable pin; 282. Second elastic element; 283. Fitting cap; 284. First elastic element; 285. Spring chamber; 286. Limiting ring. Detailed Implementation
[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0019] The purpose of this invention is to provide a secure water cup based on fingerprint recognition to solve the problems existing in the prior art and improve the security of water cup use.
[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0021] like Figures 1 to 8As shown, this embodiment provides a fingerprint-based secure water cup, including a bottle body 100 and a cap assembly 200. The cap assembly 200 includes: The bottle cap body 21 has a drinking channel that communicates with the bottle opening of the bottle body 100, and the end of the drinking channel away from the bottle opening is the drinking outlet. The cap 22 is fixedly connected to the bottle cap body 21, and the drinking spout is located above the cap 22. The locking mechanism is movably mounted on the bottle cap body 21 and has a locked position and a released position; The fingerprint recognition module 24 is fixedly mounted on the locking mechanism and is used to verify the user's fingerprint and generate control signals; A dust cover is hinged to a lid 22 via a hinge shaft 251 and is used to cover the drinking spout. A torsion spring 252 is provided between the dust cover and the lid 22. One end of the torsion spring 252 abuts against the lid 22 and the other end abuts against the dust cover. The dust cover has a locking part 253 that engages with a locking mechanism to keep it closed. A transmission actuator is disposed inside the bottle cap body 21 and electrically connected to the control unit 27; in the first state, the transmission actuator can restrict the locking mechanism to the locked position, and in the second state, the transmission actuator allows the locking mechanism to move from the locked position to the released position; The control unit 27, the fingerprint recognition module 24, and the transmission actuator are respectively connected to the control unit 27 via signals; After the fingerprint recognition module 24 is verified, the control unit 27 controls the transmission actuator to release the limit of the locking mechanism, so that the locking mechanism can be operated from the locked position to the released position under the action of external force, so as to release the constraint of the locking mechanism on the locking part 253 of the dust cover, thereby allowing the dust cover to be opened under the elastic force of the torsion spring 252.
[0022] In this embodiment, a rechargeable battery 271 is also provided. The rechargeable battery 271 is fixedly installed inside the bottle cap assembly 200, and a USB charging interface 272 is provided for the rechargeable battery 271. A USB charging cable is used to connect to the USB charging interface 272 to facilitate charging of the rechargeable battery 271. A USB sealing plug 273 is provided on the USB charging interface 272 to prevent water, dust and other debris from entering the USB charging interface 272 when it is not charging. The rechargeable battery 271 is used to supply power to various electrical components.
[0023] In the optional embodiments of this example, the preferred transmission actuator includes a motor 261, a gear transmission component 262 driven by the motor 261, and a gear transmission limiting component 263 driven by the gear transmission component 262; the drinking water channel is located inside the cylindrical drinking water pipe 211, the gear transmission limiting component 263 is arc-shaped, and the gear transmission limiting component 263 rotates with the outer wall of the drinking water pipe 211. The gear transmission limiting component 263 is provided with a first protrusion 2631; In the first state, the first protrusion 2631 holds the locking mechanism in the locked position, preventing the locking mechanism from moving to the released position; The motor 261 can drive the gear transmission component 262 to rotate according to the control signal, thereby driving the gear transmission limit component 263 to rotate, causing the first protrusion 2631 to deviate from the locking mechanism, thereby releasing the limit on the locking mechanism.
[0024] In the optional solutions of this embodiment, it is more preferred that the gear transmission component 262 is an incomplete gear, and the gear transmission limiting component 263 is provided with teeth that mesh with the gear transmission component 262.
[0025] In the optional embodiments of this example, the preferred locking mechanism includes a button lock 23 and a first spring 232. A fixed shaft 231 is fixedly provided on the cover 22. A sliding groove 234 is provided on the button lock 23 corresponding to the fixed shaft 231. A placement groove is also provided on the cover 22 corresponding to the button lock 23. The depth direction of the placement groove is parallel to the pressing direction of the button lock 23. The sliding groove 234 and the fixed shaft 231 slide in cooperation along the pressing direction of the button lock 23. Both ends of the fixed shaft 231 slide in cooperation with the corresponding sliding grooves 234. One end of the first spring 232 abuts against the cover 22, and the other end abuts against the button lock 23. The button lock 23 is provided with a hook 233 for engaging with the locking part 253 of the dust cover. The end of the hook 233 near the gear transmission limiting member 263 is held or avoided by the first protrusion 2631 of the gear transmission limiting member 263. The fingerprint recognition module 24 is fixedly provided on the pressing surface of the button lock 23.
[0026] In an optional embodiment, more preferably, the bottle cap assembly 200 further includes a prompting device electrically connected to the control unit 27. The prompting device is used to issue a prompting signal when the fingerprint recognition module 24 verifies the fingerprint and / or the transmission actuator releases the limit.
[0027] In the optional solutions of this embodiment, it is more preferred that the bottle cap body 21 and the bottle body 100 are connected by threads; The top surface of the bottle body 100 has a circular arc groove 101 that gradually deepens, and the deep end of the circular arc groove 101 extends axially to form a limiting blind hole 102. The cap 22 bracket is provided with a movable pin 281 that can move axially. When the cap body 21 is tightened with the bottle body 100, the protruding end of the movable pin 281 slides along the arc groove 101 and finally gets into the limiting blind hole 102 to lock the cap assembly 200 with the bottle body 100. The bottom of the gear transmission limiting member 263 is provided with a second protrusion 2632; The bottle cap assembly 200 also includes a fastening cap 283 and a first elastic member 284. The fastening cap 283 is fitted onto the movable pin 281, and the first elastic member 284 provides the movable pin 281 with a tendency to retract from the limiting blind hole 102. In the locked position, the second protrusion 2632 of the gear transmission limit member 263 presses down on the cap 283, so that the movable pin 281 overcomes the elastic force of the first elastic member 284 and remains locked in the limit blind hole 102. When the motor 261 drives the gear transmission limit member 263 to rotate to release the limit on the locking mechanism according to the control signal, the second protrusion 2632 rotates synchronously to release the pressure on the fastening cap 283. The movable pin 281 retracts under the action of the first elastic member 284, so that its protruding end exits the limit blind hole 102, thereby allowing the bottle cap assembly 200 to rotate and unscrew relative to the bottle body 100.
[0028] In the optional solutions of this embodiment, a more preferred one is that the protruding end of the movable pin 281 is provided with a square protrusion, and the entrance of the limiting blind hole 102 is provided with a square groove segment that matches the shape of the square protrusion. When the movable pin 281 is engaged in the limiting blind hole 102, the square protrusion and the square groove segment cooperate to prevent relative rotation between the bottle cap assembly 200 and the bottle body 100.
[0029] In the optional solutions of this embodiment, it is more preferred that one end of the second protrusion 2632 of the gear transmission limiting member 263 is provided with an inclined surface. During the process of the gear transmission limiting member 263 changing from the second state to the first state, the inclined surface on the second protrusion 2632 first contacts the tight fitting cap 283, so that the second protrusion 2632 gradually presses down on the tight fitting cap 283.
[0030] In the optional scheme of this embodiment, it is more preferred that after the control unit 27 controls the motor 261 to rotate forward to drive the gear transmission limit member 263 to rotate to release the limit, the control unit 27 controls the motor 261 to rotate in reverse to reset after a preset time interval.
[0031] In the optional embodiments of this example, a more preferred option is to further include a spring chamber 285, a movable pin 281 passing through the spring chamber 285, a limiting ring 286 located inside the spring chamber 285 on the movable pin 281, and a second elastic member 282 sleeved on the movable pin 281. One end of the second elastic member 282 is fixedly connected to the fastening cap 283, and the other end abuts against the top surface of the limiting ring 286. One end of the first elastic member 284 abuts against the bottle cap body 21, and the other end abuts against the bottom surface of the spring chamber 285.
[0032] The working principle of the fingerprint-recognition-based secure water cup in this embodiment is as follows: In the initial locked state, the dust cover covers the drinking spout, and its locking part 253 is locked by the hook 233 of the locking mechanism. At the same time, the gear transmission limit member 263 in the transmission actuator is in the first state. The first protrusion 2631 on the gear transmission limit member 263 holds the button lock 23, preventing the button lock 23 from moving, thereby mechanically keeping the dust cover closed. In addition, the second protrusion 2632 at the bottom of the gear transmission limit member 263 presses down on the tight-fitting cap 283 sleeved on the movable pin 281, so that the protruding end of the movable pin 281 overcomes the elastic force of the first elastic member 284 and is locked into the limiting blind hole 102 at the top of the bottle body 100. Furthermore, through the cooperation of the square protrusion and the square groove, the relative rotation between the bottle cap assembly 200 and the bottle body 100 is prevented, thus realizing the anti-disassembly locking of the bottle cap. When an authorized user needs to use the device, they press their finger onto the fingerprint recognition module 24 on the bottle cap body 21. The module collects and verifies the fingerprint information, and after successful verification, sends a signal to the control unit 27. The control unit 27 then drives the motor 261 of the transmission actuator to rotate forward, which in turn drives the gear transmission limit member 263 to rotate at an angle through the incomplete gear, switching from the first state to the second state. During this process, the first protrusion 2631 rotates and deviates from the button lock 23, releasing the mechanical limit on the button lock 23. At the same time, the second protrusion 2632 rotates synchronously, releasing the pressure on the fastening cap 283. At this time, the movable pin 281 springs open. Under the restoring force of the component 284, it retracts upward, causing its protruding end to exit the limiting blind hole 102, thus releasing the rotational lock between the cap assembly 200 and the bottle body 100. Subsequently, the prompting device provides an audible and visual prompt that the cap has been unlocked according to the instruction of the control unit 27. The user can then press the movable button latch 23 with their finger to rotate it around the hinge point. The hook 233 then disengages from the locking part 253 of the dust cover, and the dust cover can be opened under the elastic force of the torsion spring 252 to expose the drinking spout for the user to drink from. If it is necessary to open the entire cap for adding water or cleaning, the user can directly rotate the cap assembly 200 to separate it from the threads of the bottle body 100. After use, rotate the cap assembly 200 to connect it to the bottle body 100 via a thread, then close the dust cover. This causes the locking part 253 on the dust cover to engage with the locking mechanism. After a delay, the control unit 27 can control the motor 261 to reverse, driving the gear transmission limit member 263 to return to the first state. The first protrusion 2631 then presses against the locking mechanism again, and the second protrusion 2632 presses down on the movable pin 281, restoring the cup to a double-locked state. It is worth noting that although the gear transmission limit member 263 returns to the first state, since both the hook 233 and the locking part 253 are made of elastic plastic, when the user closes the dust cover, even though the first protrusion 2631 blocks the hook 233, the user can directly press the dust cover back. During the pressing process, both the locking part 253 and the hook 233 undergo elastic deformation, and after pressing back, the hook 233 and the locking part 253 remain engaged.
[0033] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.
Claims
1. A fingerprint-based secure water cup, comprising a bottle body and a cap assembly, characterized in that, The bottle cap assembly includes: The bottle cap body has a drinking channel that communicates with the bottle opening of the bottle body, and the end of the drinking channel away from the bottle opening is the drinking outlet; A lid, which is fixedly connected to the bottle cap body, and the drinking spout is located above the lid; The locking mechanism is movably mounted on the bottle cap body and has a locked position and a released position. A fingerprint recognition module is fixedly mounted on the locking mechanism to verify the user's fingerprint and generate a control signal; A dust cover is hinged to the lid via a hinge shaft and is used to cover the drinking spout. A torsion spring is provided between the dust cover and the lid. One end of the torsion spring abuts against the lid and the other end abuts against the dust cover. The dust cover has a locking part that engages with the locking mechanism to keep it closed. A transmission actuator is disposed within the bottle cap body and electrically connected to the control unit; the transmission actuator is capable of restricting the locking mechanism to the locked position in a first state, and allows the locking mechanism to move from the locked position to the released position in a second state; The control unit, wherein the fingerprint recognition module and the transmission actuator are respectively signal-connected to the control unit; After successful verification, the fingerprint recognition module controls the transmission actuator to release the limiting position of the locking mechanism, allowing the locking mechanism to be operated from the locked position to the released position under external force. This releases the locking mechanism from the locking part of the dust cover, allowing the dust cover to open under the elastic force of the torsion spring.
2. The fingerprint-based secure water cup according to claim 1, characterized in that: The transmission actuator includes a motor, a gear transmission component driven by the motor, and a gear transmission limiting component driven by the gear transmission component; the drinking channel is located inside a cylindrical drinking pipe, the gear transmission limiting component is arc-shaped, and the gear transmission limiting component rotates with the outer wall of the drinking pipe. The gear transmission limiting component is provided with a first protrusion; In the first state, the first protrusion holds the locking mechanism in the locked position, preventing the locking mechanism from moving to the released position; The motor can drive the gear transmission component to rotate according to the control signal, thereby driving the gear transmission limiting component to rotate, causing the first protrusion to deviate from the locking mechanism, thereby releasing the limiting of the locking mechanism.
3. The fingerprint-based secure water cup according to claim 2, characterized in that: The gear transmission component is an incomplete gear, and the gear transmission limiting component is provided with teeth that mesh with the gear transmission component.
4. The fingerprint-based secure water cup according to claim 2, characterized in that: The locking mechanism includes a button lock and a first spring. A fixed shaft is fixedly mounted on the cover. A sliding groove is provided on the button lock corresponding to the fixed shaft. A placement groove is also provided on the cover corresponding to the button lock. The depth direction of the placement groove is parallel to the pressing direction of the button lock. The sliding groove and the fixed shaft slide in cooperation along the pressing direction of the button lock. Both ends of the fixed shaft slide in cooperation with the corresponding sliding grooves. One end of the first spring abuts against the cover, and the other end abuts against the button lock. The button lock is provided with a hook for engaging with the locking part of the dust cover. The end of the hook near the gear transmission limiting member is held or avoided by the first protrusion of the gear transmission limiting member. The fingerprint recognition module is fixedly mounted on the pressing surface of the button lock.
5. The fingerprint-based security water cup according to any one of claims 1-4, characterized in that: The bottle cap assembly also includes a prompting device, which is electrically connected to the control unit. The prompting device is used to issue a prompting signal when the fingerprint recognition module verifies the fingerprint and / or the transmission actuator releases its limit.
6. The fingerprint-based secure water cup according to claim 2, characterized in that: The bottle cap body is connected to the bottle body by threads; The top surface of the bottle body has a circular arc groove that gradually deepens, and the deep end of the circular arc groove extends axially to form a limiting blind hole. The cap bracket is provided with a movable pin that can move axially. When the cap body and the bottle body are tightened, the protruding end of the movable pin slides along the arc groove and finally gets into the limiting blind hole to lock the cap assembly and the bottle body. The bottom of the gear transmission limiting component is provided with a second protrusion; The bottle cap assembly further includes a fastening cap and a first elastic element, the fastening cap being fitted onto the movable pin, and the first elastic element providing the movable pin with a tendency to retract from the limiting blind hole; In the locked position, the second protrusion of the gear transmission limiting member presses down on the fastening cap, so that the movable pin overcomes the elastic force of the first elastic member and remains locked in the limiting blind hole; When the motor drives the gear transmission limiting member to rotate to release the limiting of the locking mechanism according to the control signal, the second protrusion rotates synchronously to release the pressure on the fastening cap, and the movable pin retracts under the action of the first elastic member, so that its protruding end exits the limiting blind hole, thereby allowing the bottle cap assembly to rotate and unscrew relative to the bottle body.
7. The fingerprint-based secure water cup according to claim 6, characterized in that: The protruding end of the movable pin is provided with a square protrusion, and the entrance of the limiting blind hole is provided with a square groove section that matches the shape of the square protrusion. When the movable pin is inserted into the limiting blind hole, the square protrusion and the square groove section cooperate to prevent relative rotation between the bottle cap assembly and the bottle body.
8. The fingerprint-based secure water cup according to claim 6, characterized in that: One end of the second protrusion of the gear transmission limiting member is provided with an inclined surface. During the process of the gear transmission limiting member changing from the second state to the first state, the inclined surface on the second protrusion first contacts the tight fitting cap, so that the second protrusion gradually presses down on the tight fitting cap.
9. The fingerprint-based secure water cup according to claim 2, characterized in that: After the control unit controls the motor to rotate forward to drive the gear transmission limiter to rotate and release the limit, the control unit controls the motor to rotate in reverse to reset after a preset time interval.
10. The fingerprint-based secure water cup according to claim 6, characterized in that: It also includes a spring compartment, through which the movable pin passes. A limiting ring is provided on the movable pin and located inside the spring compartment. A second elastic element is also sleeved on the movable pin. One end of the second elastic element is fixedly connected to the fastening cap, and the other end abuts against the top surface of the limiting ring. One end of the first elastic element abuts against the bottle cap body, and the other end abuts against the bottom surface of the spring compartment.