Fingerprint unlocking cup cover

Abstract

The utility model discloses a fingerprint unlocking cup cover which can be unscrewed only by adopting fingerprint unlocking, so that the drinking safety of drinks can be ensured. The lower cover is rotatably arranged below the upper cover in a sleeving mode. The fingerprint unlocking assembly comprises a fingerprint recognition module, a battery, a circuit board and a locking mechanism which are electrically connected. The locking mechanism is arranged in the inner cavity and comprises a motor, a plug pin, a gear, a lifting disc and a motor cover plate. The motor is clamped, limited and fixed between the motor cover plate and a support arranged in the inner cavity; the lifting disc is of an annular structure and can rotate around the motor. A rack and a lifting slope are arranged on the annular edge; one end of the bolt penetrates through a movable through groove formed in the side wall of the inner cavity and is limited above the lifting slope; the motor drives the gear to rotate and drives the lifting disc to rotate through the rack, the lifting slope controls the bolt to move up and down, the bolt is combined with the lower cover, and the upper cover can drive the lower cover to rotate and is in an unlocking state. When the bolt is separated from the lower cover, the upper cover cannot drive the lower cover to rotate and is in a locking state.

Description

Technical Field

[0001] The utility model belongs to the technical field of water cups, and particularly relates to a cup lid with fingerprint unlocking. Background Art

[0002] With the progress of society and the improvement of people's living standards, heat-insulated cups have gradually become essential items in our daily lives. However, traditional heat-insulated cups often neglect the safety of users in design and do not have a sufficiently safe locking mechanism, which may cause the liquid in the heat-insulated cup to be opened, stolen, or foreign objects to be put in by others in some specific situations. Summary of the Invention

[0003] The purpose of the utility model is to provide a cup lid with fingerprint unlocking. The cup lid can be rotated out only by fingerprint unlocking, which can ensure the drinking safety of the beverage.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions.

[0005] A cup lid with fingerprint unlocking includes an upper lid, a lower lid, and a fingerprint unlocking component. The lower lid is rotatably sleeved under the upper lid. The fingerprint unlocking component is arranged in the upper lid to control the combination or separation between the upper lid and the lower lid. The fingerprint unlocking component includes an electrically connected fingerprint recognition module, a battery, a circuit board, and a locking mechanism. The fingerprint recognition module is arranged on the outer surface of the upper lid for identifying fingerprint information. The battery is arranged in the inner cavity of the upper lid for power supply. The circuit board is arranged in the inner cavity for identifying and verifying the received fingerprint information and controlling the action of the locking mechanism. The locking mechanism is arranged in the inner cavity and includes a motor, a bolt, a gear, a lifting disc, and a motor cover plate. The lifting disc, the motor, and the motor cover plate are arranged in sequence from bottom to top. The motor is clamped and limited between the motor cover plate and a support arranged in the inner cavity. The lifting disc is of an annular structure and can rotate around the motor. Its annular edge is provided with a rack and a lifting ramp. The gear is connected to the motor and corresponds to the rack for cooperation, and it can be driven by the motor to rotate. One end of the bolt passes through a movable through groove arranged on the side wall of the inner cavity and is limited above the lifting ramp, and it can move up and down closely against the lifting ramp to control the combination or separation from the lower lid. The motor drives the gear to rotate and drives the lifting disc to rotate through the rack. The lifting ramp controls the up and down movement of the bolt. When the bolt is combined with the lower lid, the upper lid can drive the lower lid to rotate, and it is in an unlocked state. When the bolt is separated from the lower lid, the upper lid and the lower lid rotate idly, and the upper lid cannot drive the lower lid to rotate, and it is in a locked state.

[0006] With the above technical solution, by setting the upper cover and the lower cover to be rotatably connected, where the lower cover is connected to the mouth of the water cup, the cup lid can only be screwed out after the upper cover and the lower cover are combined; the fingerprint information recognized by the fingerprint recognition module of the fingerprint unlocking component is analyzed and compared correctly by the circuit board to control the driving locking mechanism, and the locking mechanism drives the gear and the rack through the motor to make the lifting plate rotate. The bolt located above the lifting ramp of the lifting plate can move up and down closely along the lifting ramp. One end of the bolt passing through the movable through slot in the inner cavity can form two states of combination or separation with the lower cover, realizing that the cup lid can only be screwed into or out of the mouth of the water cup after fingerprint unlocking.

[0007] Preferably, the upper cover includes an outer cylinder, an inner cylinder and a cover plate; both the upper and lower ends of the outer cylinder are through, the upper end of the inner cylinder is open, and the top end of the inner cylinder extends radially outward to be connected to the outer cylinder to form a placement platform, and the cover plate covers the upper opening of the outer cylinder; the cover plate, the outer cylinder, the inner cylinder and the placement platform enclose an inner cavity; the lower cover is a tubular structure with an open upper end, its side wall is provided with a thread on the outside, and it is rotatably arranged on the outside of the inner cylinder; the movable through slot is arranged on the side wall of the inner cylinder; the support is arranged on the bottom wall of the inner cylinder; the fingerprint recognition module is arranged on the cover plate; the circuit board is arranged on the placement platform; the battery is arranged between the circuit board and the cover plate; the power interface is inserted into the side wall of the outer cylinder.

[0008] With the above technical solution, through the structural settings of the upper cover and the lower cover as described above, the fingerprint unlocking component can be more reasonably arranged in the cup lid.

[0009] Preferably, the inner cylinder is provided with a limiting groove around the outer side wall, and the inner side wall of the lower cover is correspondingly provided with a clamping portion, and the clamping portion is clamped and rotated and limited in the limiting groove.

[0010] With the above technical solution, by setting the limiting groove and the clamping portion, the lower cover can be simply and practically rotatably connected to the outside of the inner cylinder, will not fall off, and can only rotate around the inner cylinder.

[0011] Preferably, the upper end of the inner cylinder is provided with a clamping groove around the outer side wall, a sandwich sealing ring is sleeved in the clamping groove, and the sandwich sealing ring contacts and seals water with the inner cylinder and the lower cover respectively.

[0012] With the above technical solution, by clamping the sandwich sealing ring in the clamping groove, the sandwich sealing ring can prevent water from flowing into the sandwich between the inner cylinder and the lower cover. Since the side wall of the inner cylinder is provided with a movable through slot, finally, water can be prevented from flowing into the inner cavity and damaging the fingerprint unlocking component.

[0013] Preferably, one end of the bolt passing through the movable through slot is provided with a slot, and a plurality of convex blocks are correspondingly and circumferentially and uniformly arranged on the inner side of the side wall of the lower cover. When the bolt moves upward, its slot can be inserted into or separated from the convex blocks; when the slot is inserted and fitted with the convex blocks, the bolt is combined with the lower cover and is in the unlocked state; when the slot is separated from the convex blocks, the bolt is also separated from the lower cover and is in the locked state.

[0014] With the above technical solution, by setting the cooperation of the slot and the bump, it is very convenient to insert or disengage the slot from the bump by moving the bolt up and down, so as to realize the combination or disengagement between the upper cover and the lower cover.

[0015] Preferably, the clamping part is a clamping block arranged on at least three circumferentially evenly distributed bumps, and the clamping block is clamped and rotationally limited in the limiting groove.

[0016] With the above technical solution, at least three clamping blocks are arranged and evenly distributed circumferentially on the bumps, which can make the lower cover more stably connected to the inner cylinder.

[0017] Preferably, one end of the motor cover plate corresponding to the bolt is provided with a limiting cavity, and one end of the bolt away from the slot is placed in the limiting cavity to be restricted from lateral displacement; and limiting plates are symmetrically arranged on both sides of the bolt, and the limiting plates are limited between the side wall of the inner cylinder and the end of the limiting cavity.

[0018] With the above technical solution, the bolt is limited by the limiting cavity, and the limiting plates are also limited between the side wall of the inner cylinder and the end of the limiting cavity, so that the bolt is limited in all four directions of front, back, left and right and can only move up and down, which can make its movement stable and not deviate.

[0019] Preferably, a baffle is further provided at the top of the limiting cavity, and a spring is further arranged between the baffle and the bolt to provide an elastic restoring force for the bolt to reset downward.

[0020] With the above technical solution, by arranging the spring between the baffle and the bolt, a restoring force can be provided, so that the bolt moves downward to reset more timely and can ensure close contact with the lifting ramp.

[0021] Preferably, a limiting chute is provided below the circumferential edge of the lifting disc, and a limiting block is correspondingly provided on the bottom wall of the inner cavity. The limiting block cooperates with the limiting chute to limit the rotation stroke of the lifting disc.

[0022] With the above technical solution, by setting the cooperation of the limiting chute and the limiting block, the forward and reverse rotations of the motor, the stroke between the gear and the rack can just match the stroke of the limiting chute and the limiting block, the gear and the rack will not disengage, and the stroke of the lifting ramp and the bolt can also match, avoiding the bolt being extruded and damaged due to excessive upward movement of the cup cover.

[0023] Preferably, a temperature sensor and a display screen electrically connected to the fingerprint unlocking component are further provided. The temperature sensor passes through a through hole on the bottom wall of the inner cylinder and is fixed in a retaining hole on the bottom wall of the lower cover; the display screen is arranged on the cover plate of the upper cover.

[0024] By adopting the above technical solution, by setting a temperature sensor and a display screen, the water temperature information in the water cup can be displayed on the display screen, which is convenient for the user to know. The display screen can also display information such as the locked or unlocked state of the cup lid, or whether the fingerprint matches, etc., which is more user-friendly. Brief Description of the Drawings

[0025] Figure 1 is a schematic exploded perspective view of the cup lid of the present utility model.

[0026] Figure 2 is a schematic cross-sectional view of the cup lid in the unlocked state of the present utility model.

[0027] Figure 3 is a schematic cross-sectional view of the cup lid in the locked state of the present utility model.

[0028] Figure 4 is Figure 1 a schematic perspective view of the upper cover.

[0029] Figure 5 is Figure 1 a schematic cross-sectional view of the upper cover.

[0030] Figure 6 is Figure 1 a schematic cross-sectional view of the middle and lower cover.

[0031] Figure 7 is Figure 1 a schematic perspective view of the lifting disc.

[0032] Figure 8 is Figure 1 a schematic perspective view of the bolt.

[0033] Figure 9 is Figure 1 a schematic perspective view of the motor cover plate. Detailed Description of the Preferred Embodiments

[0034] In order to make the technical solution of the present utility model clearer, the following will Figures 1 to 9 , in conjunction with the attached drawings, make a detailed description of the present utility model. It should be understood that the specific embodiments described in this specification are only for explaining the present utility model and are not intended to limit the protection scope of the present utility model.

[0035] The present utility model is a cup lid with fingerprint unlocking, which includes an upper cover 1, a lower cover 2 and a fingerprint unlocking assembly 3; the cup lid is covered on the cup mouth of the water cup through the lower cover 2, wherein the lower cover 2 is rotatably arranged below the upper cover 1, and after the lower cover 2 covers the cup mouth of the water cup, the upper cover 1 can completely cover the lower cover 2, and the fingerprint unlocking assembly 3 is arranged in the upper cover 1 for controlling the combination or separation between the upper cover 1 and the lower cover 2.

[0036] After the upper cover 1 and the lower cover 2 are combined, turning the upper cover 1 can drive the lower cover 2 to screw into or out of the cup mouth of the water cup, and it is in the unlocked state; when the upper cover 1 and the lower cover 2 are separated, the upper cover 1 can only rotate idly with the lower cover 2, that is, turning the upper cover 1 cannot drive the lower cover 2 to rotate, so that the cup cover cannot be screwed out of the cup mouth of the water cup, and it is in the locked state.

[0037] The upper cover 1 includes an outer cylinder 11 and an inner cylinder 12. The upper and lower ends of the outer cylinder 11 are through. The inner cylinder 12 has an open upper end, and the top end of the inner cylinder 12 extends radially outward to be connected with the outer cylinder 11 to form a placement table 13. The upper section of the outer cylinder 11, the inner cylinder 12 and the placement table 13 enclose an inner cavity 10 with an open upper end; a clamping groove 14 and a limiting groove 15 surrounding the outer side wall are respectively provided at the upper and lower ends of the inner cylinder 12. A movable through groove 16 is also provided on the side wall of the inner cylinder 12, and a support 17 is provided on the bottom wall of the inner cylinder 12.

[0038] The lower cover 2 is a tubular structure with an open upper end, and it is rotatably arranged outside the inner cylinder 12 of the upper cover 1; a thread 21 is provided on the outer side of the side wall of the lower cover 2, which can be screwed and connected with the thread of the cup mouth of the water cup. A cup mouth sealing ring 8 is clamped below to contact the cup mouth to form a seal; and a number of convex blocks 22 are evenly arranged circumferentially on the inner side of the side wall, and there is a gap between each convex block 22, and at least 3 convex blocks 22 are provided with clamping blocks 23; the clamping blocks 23 are clamped into the limiting grooves 15 on the inner cylinder 12, which can limit the lower cover 2 from falling off the upper cover 1, so that the upper cover 1 and the lower cover 2 can only rotate relative to each other.

[0039] A sandwich sealing ring 4 is sleeved in the clamping groove 14 on the inner cylinder 12. The sandwich sealing ring 4 contacts and seals with the inner cylinder 12 and the lower cover 2 respectively, which can prevent water from entering the inner cavity 10 through the sandwich between the inner cylinder 12 and the lower cover 2.

[0040] The fingerprint unlocking component 3 includes a fingerprint recognition module 31, a battery 32, a circuit board 33, a power interface 34 and a locking mechanism electrically connected. The fingerprint recognition module 31 is arranged on the outer surface of the upper cover 1, specifically on the side wall or the top wall, which is convenient for users to press and verify the fingerprint of the finger; the circuit board 33 is used for identification and verification after receiving the fingerprint information, and sends information to control the action of the locking mechanism; the locking mechanism is used to control the combination or separation between the upper cover 1 and the lower cover 2; the battery 32 is used for power supply, and the power interface 34 is used for charging the battery 32.

[0041] The upper cover 1 further includes a cover plate. The cover plate is arranged at the upper opening of the upper cover 1, and the fingerprint recognition module 31 is arranged on the cover plate; the circuit board 33 is arranged on the placement table 13, the battery 32 is arranged between the circuit board 33 and the cover plate, and the power interface 34 is inserted on the side wall of the outer cylinder 11 of the upper cover 1.

[0042] The locking mechanism includes a motor 35, a bolt 36, a gear 37, a lifting disc 38, and a motor cover plate 39. Among them, the lifting disc 38, the motor 35, and the motor cover plate 39 are sequentially arranged from bottom to top in the inner cavity 10 of the upper cover 1. The motor 35 is clamped and limitedly fixed between the motor cover plate 39 and the support 17 of the upper cover 1. The lifting disc 38 is of an annular structure and is rotatably arranged on the step of the inner cavity 10 around the motor. A rack 381 and a lifting ramp 382 are provided on the annular edge of the lifting disc 38. The gear 37 is connected to one end of the motor 35 and corresponds to and cooperates with the rack 381, and the motor 35 can drive the gear 37 to rotate. The bolt 36 is arranged above the lifting ramp 382 and can be driven by the lifting ramp 382 to rise or fall.

[0043] One end of the side of the bolt 36 passes through the movable through slot 16 on the inner cylinder 12, and a through slot 361 is provided that penetrates up and down. The bolt 36 moves up and down. When the through slot 361 fits with the bump 22 on the lower cover 2, the upper cover 1 and the lower cover 2 are combined, and the upper cover 1 can drive the lower cover 2 to rotate, being in the unlocked state. When the through slot 361 is disengaged from the bump 22, the upper cover 1 and the lower cover 2 rotate idly, and the upper cover 1 cannot drive the lower cover 2 to rotate, being in the locked state.

[0044] The lifting disc 38 is provided with a limiting sliding slot 383 below it, and a limiting block 19 is correspondingly provided on the bottom wall of the inner cavity 10. The limiting block 19 and the limiting sliding slot 383 cooperate to limit the rotation stroke of the lifting disc 38, and this stroke is matched with the stroke of the gear 37 on the rack 381 and the stroke of the lifting ramp 382 driving the bolt 36 to move up and down.

[0045] One end of the motor cover plate 39 corresponding to the bolt 36 is provided with a limiting cavity 391. One end of the bolt 36 away from the through slot 361 is placed in the limiting cavity 391 to be restricted from lateral displacement. And limiting plates 363 are symmetrically provided on both sides of the bolt 36, and the limiting plates 363 are limited between the side wall of the inner cylinder 12 and the end of the limiting cavity 391. A baffle 392 is further provided at the top of the limiting cavity 391, and a spring 5 is also arranged between the baffle 392 and the bolt 36 to provide an elastic restoring force for the bolt 36 to return downward.

[0046] The top end of the bolt 36 is provided with a spring post 362, and the spring 5 is inserted on the spring post 362, which can make the connection of the spring 5 more stable and avoid falling off or deviating.

[0047] In some other embodiments, the cup lid with fingerprint unlocking is further provided with a temperature sensor 6, which passes through the through hole 18 on the bottom wall of the inner cylinder 12 and is fixed in the retaining hole on the bottom wall of the lower cover 2 for sensing the water temperature in the water cup; a sealing plug can also be arranged in the through hole 18, the temperature sensor 6 passes through the sealing plug and is fixed in the retaining hole, and the lower edge of the sealing plug can also be clamped between the lower cover 2 and the upper cover 1 for sealing the interlayer between the upper cover 1 and the lower cover 2, which can prevent water from flowing from the retaining hole to the through hole 18 or into the interlayer between the upper cover 1 and the lower cover 2.

[0048] In some other embodiments, a display screen 7 is further included on the cover plate of the upper cover 1, which can be used to display information such as temperature, unlocking or locking status, etc.

[0049] Taking the default state as the locked state as an example, the usage steps are as follows:

[0050] 1. The user brings a finger close to the fingerprint recognition module 31, and the fingerprint recognition module 31 recognizes the fingerprint information.

[0051] 2. The fingerprint recognition module 31 transmits the recognized fingerprint information to the circuit board 33.

[0052] 3. The circuit board 33 makes a comparison and judgment; if it is an unauthorized fingerprint, the circuit board 33 can display information related to the failure of fingerprint verification through the display screen 7 and prohibit the next action; if it is an authorized fingerprint, the circuit board 33 sends a start message to the motor 35.

[0053] 4. The motor 35 starts to drive the gear 37 to rotate, and through the cooperation of the rack 381, the lifting disc 38 starts to rotate, and the bolt 36 moves downward along the descending slope 382 while clinging to it under its own weight or the elastic restoring force of the spring 5.

[0054] 5. After the slot 361 of the bolt 36 is inserted and engaged with the protrusion 22 on the lower cover 2 downward, the motor 35 stops after completing the designed stroke on the circuit board 33, or the motor 35 stops after being blocked when the limit chute 383 of the lifting disc 38 touches the limit block 19; at this time, the cup lid is in the unlocked state, and the upper cover 1 can drive the lower cover 2 to rotate so that the cup lid can be screwed into and out of the cup mouth of the water cup.

[0055] 6. After re-verifying the correct fingerprint or waiting for a preset time, the circuit board 33 sends a message to the motor 35 to require reverse rotation. The lifting disc 38 starts to rotate in the reverse direction, and the ascending slope 382 forces the bolt 36 to move upward along the ascending slope until the slot 361 completely disengages from the protrusion 22, and the motor 35 stops; at this time, the cup lid is in the locked state, the upper cover 1 and the lower cover 2 rotate idly, and the upper cover 1 cannot drive the lower cover 2 to rotate, and the cup lid cannot be screwed into or out of the cup mouth of the water cup.

[0056] It should be noted that for the combination between the bolt 36 and the lower cover 2, in addition to the solution of this embodiment, one end of the slot 36 can be designed as a convex block, and the inner wall of the lower cover 2 can be designed as a corresponding groove. By the up-and-down movement of the slot 36, the convex block and the groove can be combined or separated; any other form of solution that can achieve combination or separation by lifting the bolt 36 can also be adopted.

Claims

1. A cup cover with fingerprint unlocking, comprising an upper cover (1), a lower cover (2) and a fingerprint unlocking component (3), wherein the lower cover (2) is rotatably sleeved under the upper cover (1), and the fingerprint unlocking component (3) is arranged in the upper cover (1) to control the connection or separation between the upper cover (1) and the lower cover (2); characterized in that: A fingerprint unlocking component (3), comprising an electrically connected fingerprint identification module (31), a battery (32), a circuit board (33), and a locking mechanism; The fingerprint recognition module (31) is arranged on the outer surface of the upper cover (1) and is used to recognize fingerprint information; The battery (32) is disposed in the inner cavity (10) of the upper cover (1) and is used for supplying power; The circuit board (33) is arranged in the inner cavity (10) and is used for receiving fingerprint information for identification and verification, and controlling the action of the locking mechanism; A locking mechanism is disposed in the inner cavity (10), comprising a motor (35), a latch (36), a gear (37), a lifting plate (38) and a motor cover (39); The lifting plate (38), the motor (35) and the motor cover (39) are arranged in sequence from bottom to top; The motor (35) is clamped and fixed between the motor cover (39) and a support (17) disposed in the inner cavity (10); The lifting plate (38) is an annular structure and can rotate around the motor (35); a rack (381) and a lifting slope (382) are provided on the edge of the ring; The gear (37) is connected to the motor (35) and corresponds to the rack (381), and can be driven to rotate by the motor (35); One end of the latch (36) passes through a movable through slot (16) provided on the side wall of the inner cavity (10), and is limited above the lifting slope (382), and can move up and down in close contact with the lifting slope (382) to control the connection or separation with the lower cover (2); The motor (35) drives the gear (37) to rotate and drives the lifting plate (38) to rotate through the rack (381). The lifting slope (382) controls the upward and downward movement of the latch (36). When the latch (36) is engaged with the lower cover (2), the upper cover (1) can drive the lower cover (2) to rotate, and is in an unlocked state; when the latch (36) is disengaged from the lower cover (2), the upper cover (1) and the lower cover (2) are idle, and the upper cover (1) cannot drive the lower cover (2) to rotate, and is in a locked state.

2. The fingerprint unlocking cup cover according to claim 1, characterized in that: An upper cover (1) comprises an outer cylinder (11), an inner cylinder (12) and a cover plate; The outer cylinder (11) is connected at both ends, the upper end of the inner cylinder (12) is open, and the top end of the inner cylinder (12) extends radially outward to connect with the outer cylinder (11) to form a placement platform (13), and the cover plate covers the upper opening of the outer cylinder (11); the cover plate, the outer cylinder (11), the inner cylinder (12) and the placement platform (13) together form an inner cavity (10); The lower cover (2) is a cylindrical structure with an open upper end, a thread (21) is provided on the outer side of the side wall, and the lower cover (2) is rotatably arranged on the outer side of the inner cylinder (12); A movable through groove (16) is provided on the side wall of the inner cylinder (12); The support (17) is arranged on the bottom wall of the inner tube (12); The fingerprint recognition module (31) is arranged on the cover plate; The circuit board (33) is mounted on the mounting platform (13); The battery (32) is arranged between the circuit board (33) and the cover plate; The power interface (34) is inserted into the side wall of the outer cylinder (11).

3. The fingerprint unlocking cup cover according to claim 2, characterized in that: The inner cylinder (12) is provided with a limiting groove (15) surrounding the outer side wall, and the inner side wall of the lower cover (2) is correspondingly provided with a clamping portion, which is clamped into and rotatably limited in the limiting groove (15).

4. The fingerprint unlocking cup cover according to claim 2, characterized in that: The upper end of the inner cylinder (12) is provided with a clamping groove (14) surrounding the outer wall, and the clamping groove (14) is sleeved with an interlayer sealing ring (4), and the interlayer sealing ring (4) is in contact with the inner cylinder (12) and the lower cover (2) to seal water.

5. The fingerprint unlocking cup cover according to claim 3, characterized in that: One end of the latch (36) passing through the movable through slot (16) is provided with a slot (361), and the inner side of the side wall of the lower cover (2) is evenly provided with a plurality of protrusions (22) corresponding to the circumferential direction. The latch (36) moves upward, and its slot (361) can be inserted into or separated from the protrusion (22); when the slot (361) and the protrusion (22) are inserted and matched, the latch (36) and the lower cover (2) are combined and are in an unlocked state; when the slot (361) and the protrusion (22) are separated, the latch (36) and the lower cover (2) are also separated and are in a locked state.

6. The fingerprint unlocking cup cover according to claim 5, characterized in that: The clamping portion is a clamping block (23) provided on at least three circumferentially evenly distributed protrusions (22), and the clamping block (23) is clamped into and rotatably limited in the limiting groove (15).

7. The fingerprint unlocking cup cover according to claim 5, characterized in that: A limiting cavity (391) is provided at one end of the motor cover plate (39) corresponding to the latch (36), and an end of the latch (36) away from the slot (361) is placed in the limiting cavity (391) to limit lateral displacement; and limiting plates (363) are symmetrically provided on both sides of the latch (36), and the limiting plates (363) are limited between the side wall of the inner cylinder (12) and the end of the limiting cavity (391).

8. The fingerprint unlocking cup cover according to claim 7, characterized in that: A baffle plate (392) is also provided at the top of the limiting cavity (391), and a spring (5) is also provided between the baffle plate (392) and the latch pin (36) to provide an elastic restoring force for the latch pin (36) to return downward.

9. The fingerprint unlocking cup cover according to claim 1, characterized in that: A limiting slide groove (383) is provided below the ring edge of the lifting plate (38), and a limiting block (19) is correspondingly provided on the bottom wall of the inner cavity (10). The limiting block (19) cooperates with the limiting slide groove (383) to limit the rotational travel of the lifting plate (38).

10. The fingerprint unlocking cup cover according to claim 2, characterized in that: A temperature sensor (6) and a display screen (7) electrically connected to the fingerprint unlocking component (3) are also provided. The temperature sensor (6) passes through a through hole (18) on the bottom wall of the inner tube (12) and is fixed in a retention hole on the bottom wall of the lower cover (2). The display screen (7) is provided on the cover plate of the upper cover (1).

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