Fingerprint cup

Abstract

The utility model discloses a fingerprint cup which comprises a cup body, a top cover, a circuit board, an electrostriction element and a first locking structure, the cup body or the top cover is provided with a fingerprint identification part electrically connected with the circuit board, and the electrostriction element is connected with the first locking structure and electrically connected with the circuit board. When the fingerprint identification part does not identify a correct fingerprint, the electrostriction element is powered off, so that the first locking structure is in a first state, and the first locking structure can lock the top cover on the cup body; when the fingerprint recognition part recognizes a correct fingerprint, the electrostriction element is powered on so that the first locking structure can be converted into the second state from the first state, and the top cover can be opened from the cup body. The fingerprint cup can be conveniently used by a user, drinking water safety can be guaranteed, compared with the mode that a locking structure is opened and closed through a motor and a gear transmission mechanism, the fingerprint cup is simpler in structure, machining, assembling and maintaining of all parts of the fingerprint cup are better facilitated, noise is not likely to be generated, and the experience feeling of the user is improved.

Description

Technical Field

[0001] This utility model relates to the field of cup technology, specifically to a fingerprint cup. Background Technology

[0002] A typical drinking cup consists of a cup body and a lid. When not in use, the lid is closed on the cup body to provide functions such as heat preservation, dust prevention, and insect prevention. The lid can be closed by a simple snap, a rotation, or a flip. However, traditional drinking cups lack a locking mechanism, allowing anyone to open the lid and posing a safety hazard. Fingerprint cups can address this safety issue. They typically have a fingerprint recognition unit and a locking structure. When the fingerprint recognition unit fails to recognize a correct fingerprint, the locking structure locks the lid to the cup body, preventing unauthorized opening. When the fingerprint recognition unit recognizes a correct fingerprint, the locking structure releases the lid, allowing it to be opened normally. However, current fingerprint cup technology generally uses a motor and gear transmission mechanism to open and close the locking structure. This involves many parts, a complex transmission process, and high manufacturing precision requirements, which is detrimental to the processing, assembly, and maintenance of the drinking cup. Furthermore, the motor inevitably generates noise during startup, reducing the user experience. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a fingerprint cup that simplifies the structure of the fingerprint cup while ensuring drinking water safety.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows: A fingerprint cup includes a cup body, a top cover, a circuit board, an electrostrictive element, and a first locking structure. The cup body or the top cover is provided with a fingerprint recognition part electrically connected to the circuit board. The electrostrictive element is connected to the first locking structure and electrically connected to the circuit board. When the first locking structure is in a first state, the first locking structure can lock the top cover onto the cup body. When the first locking structure is in a second state, the top cover can be opened from the cup body. When the fingerprint recognition part does not recognize a correct fingerprint, the electrostrictive element is de-energized, so that the first locking structure is in the first state. When the fingerprint recognition part recognizes a correct fingerprint, the electrostrictive element is energized, so that the first locking structure changes from the first state to the second state.

[0005] Compared to existing technologies, the advantages of this invention are as follows: This fingerprint cup controls the working state of the first locking structure by controlling the power-off and power-on states of the electrostrictive element. This allows the fingerprint cup to maintain a locked top cover when the correct fingerprint is not recognized, and to open the top cover normally after the correct fingerprint is recognized, thus better ensuring drinking water safety. Furthermore, compared to methods using motors and gear transmission mechanisms to open and close the locking structure, this fingerprint cup has a simpler structure, requires less precision in manufacturing, and is more conducive to the processing, assembly, and maintenance of its components. It also generates less noise, improving the user experience.

[0006] The fingerprint cup described above has a first locking structure comprising a first locking part and a second locking part. The first locking part is disposed on the cup body, and the second locking part is disposed on the top cover. When the electrostrictive element is de-energized, the first locking part and the second locking part are locked together. When the electrostrictive element is energized, the first locking part and the second locking part are separated.

[0007] In the aforementioned fingerprint cup, the first locking part and the second locking part are respectively provided with a first hook and a second hook. The second locking part is rotatably connected to the top cover. The electrostrictive element is connected to the second locking part. When the electrostrictive element is de-energized, the second hook is engaged with the first hook. When the electrostrictive element is energized, the electrostrictive element can drive the second locking part to rotate, so that the second hook disengages from the first hook.

[0008] In the aforementioned fingerprint cup, the electrostrictive element is an alloy memory wire, and a reset member is connected between the second locking part and the top cover; the alloy memory wire can retract when energized to drive the second locking part to rotate; when the alloy memory wire is de-energized, the reset member can drive the second locking part to reset, and the alloy memory wire can extend and recover.

[0009] The aforementioned fingerprint cup includes a cup body, a middle cover, and a lower cover. The middle cover is threadedly connected to the cup body, and the lower cover is fitted around the outer periphery of the middle cover. The top cover is rotatably connected to the lower cover. The first locking structure is used for locking and unlocking the top cover and the lower cover. When the top cover is locked to the lower cover, the lower cover can rotate freely relative to the middle cover. When the top cover is flipped open relative to the lower cover, the lower cover and the middle cover can rotate together relative to the cup body.

[0010] The aforementioned fingerprint cup further includes a second locking structure and an elastic element. The second locking structure is fixedly connected to the middle cover in the circumferential direction and movably connected to the middle cover in the axial direction. The two ends of the elastic element are respectively connected to the middle cover and the second locking structure. When the top cover is locked to the bottom cover, the top cover can press down on the second locking structure to disengage the second locking structure from the bottom cover. When the top cover is flipped open relative to the bottom cover, the elastic element can drive the second locking structure to move toward the bottom cover, so that the middle cover, the second locking structure, and the bottom cover are fixed as a whole.

[0011] In the aforementioned fingerprint cup, the outer periphery of the second locking structure is provided with a snap-fit ​​protrusion, the middle cover is provided with a first snap-fit ​​groove, and the lower cover is provided with a second snap-fit ​​groove; when the top cover is locked to the lower cover, the lower part of the snap-fit ​​protrusion snaps into the first snap-fit ​​groove, and the upper part of the snap-fit ​​protrusion disengages from the second snap-fit ​​groove; when the top cover is flipped open relative to the lower cover, the lower and upper parts of the snap-fit ​​protrusion snap into the first snap-fit ​​groove and the second snap-fit ​​groove, respectively.

[0012] The aforementioned fingerprint cup has multiple circumferentially distributed snap-fit ​​protrusions, the first snap-fit ​​groove, and the second snap-fit ​​groove.

[0013] The aforementioned fingerprint cup has a water outlet step on the top of the middle cover.

[0014] The fingerprint cup described above has a suction nozzle that communicates with the cup body on either the middle cover or the lower cover.

[0015] The fingerprint cup described above has a top cover comprising a first cover and a second cover, wherein the first cover and the second cover are connected by a waterproof ring to form a sealed cavity, and the circuit board is disposed within the sealed cavity.

[0016] The aforementioned fingerprint cup has a waterproof ring with multiple waterproof sealing surfaces, some of which are attached to the first cover and others are attached to the second cover.

[0017] The aforementioned fingerprint cup has a battery inside the sealed cavity, which is electrically connected to the circuit board to supply power to the circuit board. The first cover has a charging interface.

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the fingerprint cup according to an embodiment of the present invention;

[0020] Figure 2This is a partial structural cross-sectional view of the fingerprint cup according to an embodiment of the present invention, in the first locking structure in the first state.

[0021] Figure 3 This is a schematic diagram of the fingerprint cup after the top cover is opened according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the internal structure of the top cover of the fingerprint cup according to an embodiment of the present invention;

[0023] Figure 5 This is a top view of the cooperation between the middle cover and the second locking structure in some embodiments of the present invention;

[0024] Figure 6 This is a bottom view of the lower cover in some embodiments of the present invention.

[0025] Explanation of reference numerals: 100 Cup body, 110 Cup body, 120 Middle cover, 121 First slot, 122 Water outlet step, 130 Lower cover, 131 Second slot, 140 Second locking structure, 141 Snap-fit ​​protrusion, 150 Elastic element, 160 Nozzle, 200 Top cover, 210 First cover body, 211 Charging interface, 220 Second cover body, 230 Sealing cavity, 240 Waterproof ring, 241 Waterproof sealing surface, 250 Battery, 300 Circuit board, 400 Electrostrictive element, 500 First locking structure, 510 First locking part, 511 First hook, 520 Second locking part, 521 Second hook, 600 Fingerprint recognition part, 700 Reset component. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below, with reference to Figure 1 and Figure 2 An embodiment of this utility model provides a fingerprint cup, including a cup body 100, a top cover 200, a circuit board 300, an electrostrictive element 400, and a first locking structure 500. The cup body 100 or the top cover 200 is provided with a fingerprint recognition part 600 electrically connected to the circuit board 300. The electrostrictive element 400 is connected to the first locking structure 500 and electrically connected to the circuit board 300. When the first locking structure 500 is in a first state, the first locking structure 500 can lock the top cover 200 onto the cup body 100. When the first locking structure 500 is in a second state, the top cover 200 can be opened from the cup body 100.

[0027] In this fingerprint cup, when the fingerprint recognition unit 600 fails to recognize a correct fingerprint, the electrostrictive element 400 is de-energized, causing the first locking structure 500 to be in a first state. In this state, the first locking structure 500 locks the top cover 200 to the cup body 100, preventing the top cover 200 from being opened. When the fingerprint recognition unit 600 recognizes a correct fingerprint, the electrostrictive element 400 is energized, causing the first locking structure 500 to transition from the first state to a second state. In this state, the first locking structure 500 unlocks the top cover 200, allowing it to be opened from the cup body 100. By controlling the working state of the first locking structure 500 through the de-energization and energization of the electrostrictive element 400, the fingerprint cup can maintain a locked top cover 200 when a correct fingerprint is not recognized, and can open the top cover 200 normally after a correct fingerprint is recognized, thus better ensuring drinking safety. Meanwhile, compared with the method of using a motor and gear transmission mechanism to open and close the locking structure, this fingerprint cup has a simpler structure, requires less processing precision, and is more conducive to the processing, assembly and maintenance of the various parts of the fingerprint cup. It also does not generate noise and improves the user experience.

[0028] The top cover 200 of this invention can be directly fastened onto the cup body 100. When the first locking structure 500 is in the second state, the top cover 200 can be directly removed from the cup body 100. Alternatively, the top cover 200 can be screwed onto the cup body 100. When the first locking structure 500 is in the second state, the top cover 200 can be rotated to remove it from the cup body 100. Furthermore, it can also be... Figure 3 As shown, the top cover 200 is rotatably connected to the cup body 100. When the first locking structure 500 is in the second state, the top cover 200 can be flipped open relative to the cup body 100. When the top cover 200 is rotatably connected to the cup body 100, a torsion spring can be sleeved on the pivot connecting the top cover 200 and the cup body 100. When the first locking structure 500 changes from the first state to the second state, the torsion spring can cause the top cover 200 to open automatically.

[0029] The circuit board 300, fingerprint recognition unit 600, and electrostrictive element 400 of this invention can all be disposed on the top cover 200 or on the cup body 100, as long as fingerprint recognition and the power supply and de-energization of the electrostrictive element 400 are possible. Of course, fingerprint recognition technology is existing technology, and this invention does not improve the fingerprint recognition technology of the fingerprint cup; therefore, the functional principle of fingerprint recognition will not be elaborated here. For ease of assembly and improved waterproofing, it is preferable that the circuit board 300, fingerprint recognition unit 600, and electrostrictive element 400 are all disposed in the top cover 200. For example, see reference... Figures 1 to 4The top cover 200 includes a first cover 210 and a second cover 220. The first cover 210 and the second cover 220 are connected by a waterproof ring 240 to form a sealed cavity 230. The circuit board 300 and the electrostrictive element 400 are both disposed within the sealed cavity 230. The fingerprint recognition unit 600 is disposed on the side of the top cover 200 and is electrically connected to the circuit board 300. Furthermore, a battery 250 is also disposed within the sealed cavity 230. The battery 250 is electrically connected to the circuit board 300 and is used to supply power to the circuit board 300. A magnetic charging interface 211 is also provided on the top of the first cover 210 for connecting an external wire to charge the battery 250. A charging indicator light can also be provided at the location of the fingerprint recognition unit 600 to allow the user to identify the charging status. Further, refer to... Figure 2 The enlarged view shows that, in order to improve the waterproof effect inside the sealing cavity 230, the waterproof ring 240 has multiple waterproof sealing surfaces 241 distributed along the up, down, left and right directions. Some of the waterproof sealing surfaces 241 are attached to the first cover 210, and other waterproof sealing surfaces 241 are attached to the second cover 220. The waterproof sealing effect is improved by setting multiple waterproof sealing surfaces 241.

[0030] Furthermore, the first locking structure 500 of this utility model includes a first locking part 510 and a second locking part 520. The first locking part 510 is disposed on the cup body 100, and the second locking part 520 is disposed on the top cover 200. When the electrostrictive element 400 is de-energized, the first locking part 510 and the second locking part 520 are locked together. When the electrostrictive element 400 is energized, the first locking part 510 and the second locking part 520 are separated. For example, a pin and slot structure can be used. For instance, the first locking part 510 is a slot, and the second locking part 520 is a pin. When the first locking structure 500 is in the first state, the electrostrictive element 400 is de-energized, and the pin is inserted into the slot, thereby locking the top cover 200 onto the cup body 100. When the electrostrictive element 400 is energized, it can drive the pin out of the slot, the first locking structure 500 changes from the first state to the second state, and the top cover 200 can be opened. Another example is... (Refer to...) Figure 2 and Figure 3 The first locking part 510 and the second locking part 520 are respectively provided with a first hook 511 and a second hook 521. The second locking part 520 is rotatably connected to the top cover 200. When the top cover 200 includes the first cover body 210 and the second cover body 220, such as Figure 2 and Figure 4 As shown, the second locking part 520 is rotatably connected to the second cover 220, as... Figure 3As shown, the second hook 521 extends from the sealing cavity 230 to the outside of the second cover 220. The electrostrictive element 400 is connected to the second locking part 520. When the electrostrictive element 400 is de-energized, the second hook 521 engages with the first hook 511 to lock the top cover 200 to the cup body 100. When the electrostrictive element 400 is energized, it can rotate the second locking part 520, causing the second hook 521 to disengage from the first hook 511, at which point the top cover 200 can be opened from the cup body 100.

[0031] Furthermore, the electrostrictive element 400 of this invention only needs to be able to achieve the following: when power is off, the first locking structure 500 is in the first state; when power is on, the first locking structure 500 is in the second state. Of course, in some conversion scenarios, the electrostrictive element 400 can also be configured to have the first locking structure 500 in the second state when power is off and in the first state when power is on; this should be considered an equivalent substitution of this invention. (Refer to...) Figure 4 In some embodiments, the electrostrictive element 400 is an alloy memory wire, and a reset member 700 is connected between the second locking part 520 and the top cover 200. The alloy memory wire is a nickel-titanium alloy memory wire, which can retract when energized to drive the second locking part 520 to rotate. When the alloy memory wire is de-energized, the reset member 700 can drive the second locking part 520 to reset. Due to its own characteristics, the alloy memory wire can stretch and recover, and can retract again when energized again. Furthermore, in order to improve the effect of the alloy memory wire, a terminal post can be provided inside the top cover 200, with one end of the alloy memory wire fixed to the terminal post and the other end fixed to the second locking part 520. The circuit board 300 is energized by a wire that powers the terminal block, thus establishing an electrical connection between the circuit board 300 and the alloy memory wire. Both ends of the alloy memory wire are connected to rigid components. One end of the terminal block is fixed, while the second locking part 520 is movable. When the alloy memory wire is energized and retracts, it ensures that the second locking part 520 rotates without being prevented from rotating due to pulling on the wire. Alternatively, in some embodiments, the electrostrictive element 400 can be an electromagnet, with a magnetic element provided in the second locking part 520. When the electromagnet is energized, it generates a magnetic force that attracts the magnetic element, causing the second locking part 520 to rotate or retract from the first locking part 510. When the electromagnet is de-energized, the magnetic force disappears, and the reset member 700 resets the second locking part 520. Therefore, the connection between the electrostrictive element 400 and the second locking part 520 should include a magnetic connection.

[0032] The fingerprint cup of this invention can be a simple drinking cup. For example, the cup body 100 only includes the cup body 110, and the top cover 200 is placed on top of the cup body 110. After opening the top cover 200, water can be drunk directly from the cup body 110. (See reference) Figures 1 to 3 In some embodiments, the cup body 100 includes a cup body 110, a middle cover 120, and a lower cover 130. The middle cover 120 is threadedly connected to the cup body 110, and the lower cover 130 is fitted onto the outer periphery of the middle cover 120. The inner periphery of the lower cover 130 and the outer periphery of the middle cover 120 are provided with a snap-fit ​​structure, so that the lower cover 130 cannot be removed axially relative to the middle cover 120 under normal circumstances. That is, when the middle cover 120 is threadedly connected to the cup body 110, the lower cover 130 cannot be removed from the cup body 110 alone. The top cover 200 is rotatably connected to the lower cover 130, and a first locking structure 500 is used for locking and unlocking the top cover 200 and the lower cover 130. Figure 3 As shown, when the first locking structure 500 includes a first locking part 510 and a second locking part 520, the first locking part 510 is fixedly connected to the lower cover 130. When the top cover 200 is locked to the lower cover 130, the lower cover 130 can rotate freely relative to the middle cover 120. At this time, rotating the lower cover 130 cannot cause the middle cover 120 to rotate relative to the cup body 110, therefore, the fingerprint cup cannot be opened. When the top cover 200 is flipped open relative to the lower cover 130, the lower cover 130 and the middle cover 120 can rotate together relative to the cup body 110. At this time, rotating the lower cover 130 can cause the middle cover 120 to rotate relative to the cup body 110, allowing the middle cover 120 and the lower cover 130 to be opened together from the cup body 110 for filling with water and cleaning. Furthermore, the top of the middle cover 120 is provided with a water outlet step 122 to facilitate the outflow of residual water after cleaning. When the structure of middle cover 120 and lower cover 130 is adopted, the middle cover 120 or lower cover 130 is provided with a spout 160 that communicates with the cup body 110. After opening the top cover 200, the user can directly use the spout 160 to drink water.

[0033] Furthermore, continue to refer to Figure 2 The cup body 100 also includes a second locking structure 140 and an elastic element 150. The second locking structure 140 is fixedly connected to the middle cover 120 in the circumferential direction, meaning that the second locking structure 140 cannot rotate relative to the middle cover 120. The second locking structure 140 is movably connected to the middle cover 120 in the axial direction, meaning that the second locking structure 140 can move relative to the middle cover 120 along the axial direction. The two ends of the elastic element 150 are respectively connected to the middle cover 120 and the second locking structure 140. (Continue referring to...) Figure 2When the top cover 200 is locked to the bottom cover 130, the top cover 200 can press down against the second locking structure 140, causing the second locking structure 140 to disengage from the bottom cover 130. At this time, there is no reliable connection between the bottom cover 130 and the middle cover 120, and rotating the bottom cover 130 cannot rotate the middle cover 120. When the top cover 200 is flipped open relative to the bottom cover 130, the elastic element 150 can drive the second locking structure 140 to move towards the bottom cover 130, so that the middle cover 120, the second locking structure 140, and the bottom cover 130 are fixed as a whole. At this time, rotating the bottom cover 130 can make the middle cover 120 rotate relative to the cup body 110.

[0034] Furthermore, referring to Figure 5 and Figure 6 The second locking structure 140 has a snap-fit ​​protrusion 141 on its outer periphery, the middle cover 120 has a first snap-fit ​​groove 121, and the lower cover 130 has a second snap-fit ​​groove 131. When the top cover 200 is locked to the lower cover 130, the lower part of the snap-fit ​​protrusion 141 snaps into the first snap-fit ​​groove 121, and the upper part of the snap-fit ​​protrusion 141 disengages from the second snap-fit ​​groove 131. At this time, there is no reliable connection between the lower cover 130 and the middle cover 120, and rotating the lower cover 130 cannot rotate the middle cover 120. When the top cover 200 is flipped open relative to the lower cover 130, the lower and upper parts of the snap-fit ​​protrusion 141 snap into the first snap-fit ​​groove 121 and the second snap-fit ​​groove 131, respectively. At this time, the middle cover 120, the second locking structure 140, and the lower cover 130 are fixed as a whole, and rotating the lower cover 130 can make the middle cover 120 rotate relative to the cup body 110.

[0035] Furthermore, multiple locking protrusions 141, first locking grooves 121, and second locking grooves 131 are distributed circumferentially to improve positioning effectiveness and service life. Of course, the number of locking protrusions 141, first locking grooves 121, and second locking grooves 131 can be adjusted according to requirements, and their numbers are not necessarily equal. For example, the locking protrusions 141 may be incomplete teeth located on the outer periphery of the second locking structure 140, meaning the locking protrusions 141 are not evenly distributed circumferentially, the first locking grooves 121 may have multiple sets distributed circumferentially, while the second locking grooves 131 may be evenly distributed circumferentially. It should be noted that although the snap-fit ​​protrusion 141 may not align with the second snap-fit ​​groove 131 when the lower cover 130 is rotated, due to the presence of the elastic element 150, when the lower cover 130 is rotated relative to the middle cover 120 until the snap-fit ​​protrusion 141 aligns with the second snap-fit ​​groove 131, the elastic element 150 will push the snap-fit ​​protrusion 141 into the second snap-fit ​​groove 131, thereby fixing the middle cover 120, the second locking structure 140, and the lower cover 130 into a single unit. (Refer to...) Figure 5 and Figure 6In some other embodiments, the snap-fit ​​protrusions 141 are complete teeth provided on the outer periphery of the second locking structure 140, that is, each snap-fit ​​protrusion 141 is evenly distributed in the circumferential direction. For example, there are six sets of first snap-fit ​​grooves 121 distributed in the circumferential direction. Of course, other numbers of sets can also be distributed to further increase the lateral contact area between the second locking structure 140 and the middle cover 120 and the lower cover 130. When the lower cover 130 is rotated, the lower cover 130 can better drive the middle cover 120 to rotate, and the situation of broken teeth is not easy to occur.

[0036] It should be noted that in the description of this utility model, any descriptions of orientation, such as up, down, front, back, left, right, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings. 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, be constructed or operated in a specific orientation, and should not be construed as a limitation of this utility model.

[0037] In the description of this utility model, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is mentioned, it is only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0038] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0039] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A fingerprint cup, characterized in that, The device includes a cup body (100), a top cover (200), a circuit board (300), an electrostrictive element (400), and a first locking structure (500). The cup body (100) or the top cover (200) is provided with a fingerprint recognition part (600) electrically connected to the circuit board (300). The electrostrictive element (400) is connected to the first locking structure (500) and electrically connected to the circuit board (300). When the first locking structure (500) is in a first state, the first locking structure (500) can lock the top cover (200) onto the cup body (100). When the first locking structure (500) is in a second state, the top cover (200) can be opened from the cup body (100). When the fingerprint recognition unit (600) fails to recognize a correct fingerprint, the electrostrictive element (400) is de-energized, so that the first locking structure (500) is in the first state; When the fingerprint recognition unit (600) recognizes a correct fingerprint, the electrostrictive element (400) is energized to change the first locking structure (500) from a first state to a second state.

2. The fingerprint cup according to claim 1, characterized in that, The first locking structure (500) includes a first locking part (510) and a second locking part (520). The first locking part (510) is disposed on the cup body (100), and the second locking part (520) is disposed on the top cover (200). When the electrostrictive element (400) is de-energized, the first locking part (510) and the second locking part (520) are locked together. When the electrostrictive element (400) is energized, the first locking part (510) and the second locking part (520) are separated.

3. The fingerprint cup according to claim 2, characterized in that, The first locking part (510) and the second locking part (520) are respectively provided with a first hook (511) and a second hook (521). The second locking part (520) is rotatably connected to the top cover (200). The electrostrictive element (400) is connected to the second locking part (520). When the electrostrictive element (400) is de-energized, the second hook (521) is engaged with the first hook (511). When the electrostrictive element (400) is energized, the electrostrictive element (400) can drive the second locking part (520) to rotate so that the second hook (521) disengages from the first hook (511).

4. The fingerprint cup according to claim 3, characterized in that, The electrostrictive element (400) is an alloy memory wire, and a reset member (700) is connected between the second locking part (520) and the top cover (200); The alloy memory wire can retract when energized, thereby driving the second locking part (520) to rotate; When the alloy memory wire is de-energized, the reset member (700) can drive the second locking part (520) to reset, and the alloy memory wire can extend and recover.

5. The fingerprint cup according to any one of claims 1-4, characterized in that, The cup body (100) includes a cup body (110), a middle cover (120) and a lower cover (130). The middle cover (120) is threaded to the cup body (110). The lower cover (130) is fitted onto the outer periphery of the middle cover (120). The top cover (200) is flip-connected to the lower cover (130). The first locking structure (500) is used for locking and unlocking the top cover (200) and the lower cover (130). When the top cover (200) is locked to the lower cover (130), the lower cover (130) can rotate freely relative to the middle cover (120); When the top cover (200) is flipped open relative to the bottom cover (130), the bottom cover (130) and the middle cover (120) can rotate together relative to the cup body (110).

6. The fingerprint cup according to claim 5, characterized in that, The cup body (100) further includes a second locking structure (140) and an elastic member (150). The second locking structure (140) is fixedly connected to the middle cover (120) in the circumferential direction and movably connected to the middle cover (120) in the axial direction. The two ends of the elastic member (150) are respectively connected to the middle cover (120) and the second locking structure (140). When the top cover (200) is locked to the bottom cover (130), the top cover (200) can press down against the second locking structure (140) to disengage the second locking structure (140) from the bottom cover (130); When the top cover (200) is flipped open relative to the bottom cover (130), the elastic element (150) can drive the second locking structure (140) to move toward the bottom cover (130) so that the middle cover (120), the second locking structure (140) and the bottom cover (130) are fixed together as a whole.

7. The fingerprint cup according to claim 6, characterized in that, The second locking structure (140) has a snap-fit ​​protrusion (141) on its outer periphery, the middle cover (120) has a first snap-fit ​​groove (121), and the lower cover (130) has a second snap-fit ​​groove (131). When the top cover (200) is locked to the bottom cover (130), the lower part of the snap-fit ​​protrusion (141) snaps into the first snap-fit ​​groove (121), and the upper part of the snap-fit ​​protrusion (141) disengages from the second snap-fit ​​groove (131). When the top cover (200) is flipped open relative to the bottom cover (130), the lower and upper parts of the snap-fit ​​protrusion (141) are respectively snapped into the first snap-fit ​​groove (121) and the second snap-fit ​​groove (131).

8. The fingerprint cup according to claim 7, characterized in that, The snap-fit ​​protrusion (141), the first snap-fit ​​groove (121) and the second snap-fit ​​groove (131) are all distributed in multiple circumferential directions.

9. The fingerprint cup according to claim 5, characterized in that, The top of the middle cover (120) is provided with a water outlet step (122).

10. The fingerprint cup according to claim 5, characterized in that, The middle cover (120) or the lower cover (130) is provided with a spout (160) that communicates with the cup body (110).

11. The fingerprint cup according to any one of claims 1-4, characterized in that, The top cover (200) includes a first cover body (210) and a second cover body (220). The first cover body (210) and the second cover body (220) are connected by a waterproof ring (240) to form a sealed cavity (230). The circuit board (300) is disposed in the sealed cavity (230).

12. The fingerprint cup according to claim 11, characterized in that, The waterproof ring (240) has multiple waterproof sealing surfaces (241), some of which are attached to the first cover (210), and others are attached to the second cover (220).

13. The fingerprint cup according to claim 11, characterized in that, The sealed cavity (230) is equipped with a battery (250), which is electrically connected to the circuit board (300) to supply power to the circuit board (300). The first cover (210) is equipped with a charging interface (211).

Images