High-stability fingerprint cup

Abstract

The utility model provides a high-stability fingerprint cup. The high-stability fingerprint cup comprises a cup body; the sealing cover is rotationally sealed at a cup opening of the cup body, the top of the sealing cover is concave downwards to form a driving groove, a plurality of driving parts are arranged at the bottom of the driving groove in the circumferential direction at intervals in a protruding mode, and a driving area is formed between every two adjacent driving parts; the cup cover is rotationally arranged on the outer side of the sealing cover, an inner cover extending into the driving groove is arranged in the cup cover, a plurality of limiting parts which vertically extend and define a limiting area are arranged at the bottom of the inner cover, and a linkage piece which is driven by a driving device to ascend and descend is arranged in the limiting area; a linkage end and a reinforcing end which extend outwards and abut against the multiple limiting parts in the circumferential direction are arranged on the linkage piece at intervals in the circumferential direction, the linkage end corresponds to the driving area, and a fingerprint recognition device in communication connection with the driving device is arranged on the cup cover. The driving strength of the linkage piece for driving the sealing cover to be opened can be improved, more labor is saved in cover opening, and the risk that the fingerprint cup cannot be opened for use due to the fact that the driving end of the driving device is broken after the fingerprint cup is frequently used is reduced.

Description

Technical Field

[0001] The utility model relates to the field of fingerprint cups, in particular to a high-stability fingerprint cup. Background Art

[0002] As people pay more and more attention to the safety of drinking water in cups, fingerprint cups that control the opening and closing of cup lids through fingerprint unlocking have appeared on the market.

[0003] At present, the fingerprint cup mainly includes an inner cover that is screwed to the sealed cup body and an outer cover with a rotating cover arranged on the outside of the inner cover. A motor is arranged in the outer cover, and a linkage structure that can be locked with the inner cover is provided at the telescopic end of the motor. When opening the cover, after the fingerprint is successfully unlocked, the linkage structure can be driven by the telescopic end of the motor to telescope and move and lock with the inner cover, so that the rotating outer cover can drive the inner cover to rotate together to open the cover.

[0004] However, in actual use, the linkage structure at the telescopic end of the motor is easily damaged and broken after frequent use, resulting in the fingerprint cup being unable to be opened and used, which greatly reduces the service life of the fingerprint cup and provides a poor user experience.

[0005] The purpose of the present invention is to design a highly stable fingerprint cup in view of the above problems in the prior art. Utility Model Content

[0006] In view of the problems existing in the above-mentioned prior art, the utility model provides a high-stability fingerprint cup, which can effectively solve the problems existing in the above-mentioned prior art.

[0007] The technical solution of the utility model is:

[0008] A high-stability fingerprint cup, comprising:

[0009] Cup body;

[0010] A sealing cover is rotatably sealed on the cup mouth of the cup body, the top of the sealing cover is concave to form a driving groove, the bottom of the driving groove is circumferentially spaced and protruded to form a plurality of driving parts, and a driving area is formed between two adjacent driving parts;

[0011] The cup cover is rotatably arranged on the outside of the sealing cover, the cup cover is provided with an inner cover extending into the driving groove, the bottom of the inner cover is provided with a plurality of limiting parts extending vertically and enclosing a limiting area, the limiting area is provided with a linkage member driven to rise and fall by a driving device, the linkage member is circumferentially spaced with linkage ends and reinforcement ends extending outward and circumferentially abutting against a plurality of the limiting parts, the linkage ends correspond to the driving area, the cup cover is provided with a fingerprint recognition device connected to the driving device for communication; when the fingerprint recognition device recognizes that it passes, the driving device drives the linkage member to descend until the linkage end enters the driving area and circumferentially abuts against the adjacent driving part, and then the cup cover rotates in conjunction with the sealing cover.

[0012] Further, the number of the linkage ends is set to one, the number of the reinforcement ends is set to three and includes two short ends and one long end, the linkage end, the two short ends and the long end are vertically arranged in sequence, the limiting portion includes a first limiting column with a first interlocking groove adapted to one of the short ends recessed inside, a second limiting column with a second interlocking groove adapted to the other short end formed between the first limiting column and the first limiting column, and a third limiting column and a fourth limiting column, the long end is passed through the third limiting column and the fourth limiting column, the linkage end is passed through the fourth limiting column and the first limiting column and one side circumferentially abuts against the fourth limiting column.

[0013] Furthermore, a linkage part corresponding to the driving area is provided at the end of the linkage end, and both sides of the bottom of the linkage part are inclined to form a guide part whose outer diameter gradually decreases from top to bottom, and the upper ends of several driving parts are arranged with arc chamfers, and the bottom of the driving groove is circumferentially recessed with several positioning grooves located on the inner sides of several driving parts, and the bottom of the linkage end is provided with a positioning column located on the inner side of the linkage part and corresponding to several positioning grooves; after the driving device drives the linkage part to descend until the linkage part enters the driving area and circumferentially abuts against the adjacent driving part, and the positioning column enters the positioning groove and circumferentially abuts against it, the cup cover and the sealing cover rotate in a linkage manner.

[0014] Furthermore, the driving device is arranged in the inner cover and the driving end penetrates downward into the limit area. The bottom of the inner cover is provided with a limit switch for closing the driving device, and the top protrusion of the long end is provided with a trigger part corresponding to the limit switch; after the driving end of the driving device drives the linkage part to rise to the trigger part to trigger the limit switch, the driving device stops driving.

[0015] Furthermore, the driving end of the driving device is a screw that is threaded through the linkage and exposed. The bottom side of the inner cover is arranged in a step shape and half of the raised part is a boss and the other half is a recessed part. Several limit parts, limit switches, linkage parts and screws are arranged on the recessed part. A bracket is detachably provided at the bottom of the boss, one end of the bracket is suspended corresponding to the screw and is penetrated by a positioning hole. When the driving device drives the linkage to descend to the linkage end through the screw to enter the driving area and circumferentially abut against the adjacent driving part, the lower end of the screw is inserted into the positioning hole for positioning.

[0016] Furthermore, a heat-conducting cover is provided on the outer bottom of the driving groove, a sealing ring is provided on the outer side of the heat-conducting cover, the middle part of the bottom of the driving groove is concave and penetrates and connects with the heat-conducting cover, and a temperature detection device for detecting the temperature of the heat-conducting cover is provided in the middle of the bracket.

[0017] Furthermore, the sealing cover is recessed at the bottom and provided with a sealing groove which is arranged in an annular manner on the outside of the driving groove. The upper end of the cup body can be screwed and sealed and inserted into the sealing groove. The sealing cover is provided with a plurality of telescopic ejectors which penetrate downward into the driving groove. The plurality of telescopic ejectors are communicatively connected with the driving device. When the upper end of the cup body is screwed and sealed and inserted into the sealing groove and triggers the plurality of telescopic ejectors to retract, the driving device drives the linkage member to rise and disengage from the driving groove.

[0018] Therefore, the utility model provides the following effects and / or advantages:

[0019] 1. In the present application, after the driving device drives the linkage member to descend to the linkage end to enter the driving area and abut against the adjacent driving part circumferentially, the cup cover and the sealing cover rotate in a linkage manner. Thus, by reinforcing the setting of the circumferential abutment of the plurality of limiting parts at the end, the rotating cup cover transmits the force to the linkage member through the inner cover and the plurality of limiting parts in turn to push the driving part circumferentially on the linkage member, and then drives the sealing cover to rotate and open the cover, thereby improving the driving strength of the linkage member driving the sealing cover to open the cover, making the opening of the cover more labor-saving. At the same time, by reinforcing the circumferential abutment between the end and the plurality of limiting parts, the force of the linkage end can be transmitted to the plurality of limiting parts, and then to the inner cover, thereby improving the structural strength and stability of the linkage member, reducing the force of the driving end of the driving device, reducing the risk of the driving end of the driving device breaking after frequent use of the fingerprint cup, resulting in the inability to open the cover for use of the fingerprint cup, improving the use stability and service life of the fingerprint cup, and improving the user experience.

[0020] 2. The present application improves the structural strength of the linkage part and reduces the risk of breakage of the linkage end and the reinforcement end by vertically arranging a linkage end, two short ends and a long end in sequence to form a cross-shaped distribution. At the same time, through the arrangement of the first limit column, the second limit column, the third limit column, the fourth limit column, the first interlocking groove and the second interlocking groove, the contact area between the linkage end and the reinforcement end and the plurality of limit parts is increased, and the circumferential abutment strength between the linkage end and the reinforcement end and the plurality of limit parts is increased. While opening the cover is labor-saving, the matching stability between the inner cover, the linkage part and the sealing cover is further improved.

[0021] 3. The present application uses the guiding and positioning cooperation between the guide part and the positioning column and the limiting guiding cooperation in the guide area, so that when the driving end of the driving device drives the linkage part to descend, the linkage part can stably enter the driving area, thereby improving the stability of the linkage between the inner cover and the sealing cover through the linkage part. At the same time, the linkage part can assist in pushing the sealing cover to rotate and open the cover through the circumferential abutment between the positioning column and the positioning groove, further increasing the contact area between the linkage part and the driving groove, increasing the thrust of the inner cover to push the sealing cover to rotate and open the cover through the linkage end, reducing the risk of stress concentration on the linkage end and wear and fracture, and improving the cooperation stability between the linkage part and the sealing cover.

[0022] 4. The present application adds a retractable ejector pin, and after the sealing cover is rotated and closed into place, the linkage part is retracted to disengage from the driving groove, so that the cup cover can only rotate around the sealing cover but cannot be opened, thereby improving the immediacy of the fingerprint cup lock cover and further improving the safety of the fingerprint cup.

[0023] It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural schematic diagram of a high-stability fingerprint cup provided by the utility model.

[0025] Figure 2 This is a schematic diagram of the explosion structure of the cup cover and the sealing cover provided by the utility model.

[0026] Figure 3 This is a schematic diagram of the structure of the cup cover provided by the utility model after the bracket is removed.

[0027] Figure 4 for Figure 3 Schematic diagram of the explosion structure.

[0028] Figure 5 This is a structural schematic diagram of the linkage member provided by the utility model.

[0029] Figure 6 This is a structural schematic diagram of the sealing cover provided by the utility model.

[0030] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure at AA in the middle.

[0031] Figure 8 for Figure 6 Schematic diagram of the cross-sectional structure at BB in the middle. DETAILED DESCRIPTION

[0032] In order to facilitate understanding by those skilled in the art, the structure of the present invention is further described in detail with reference to the accompanying drawings:

[0033] refer to Figure 1-8 , a high-stability fingerprint cup, comprising:

[0034] Cup body 1;

[0035] The sealing cover 2 is rotatably sealed on the cup mouth of the cup body 1. The top of the sealing cover 2 is concave to form a driving groove 21. The bottom of the driving groove 21 is provided with a plurality of driving parts 211 at circumferential intervals. A driving area 212 is formed between two adjacent driving parts 211.

[0036] The cup cover 3 is rotatably arranged on the outside of the sealing cover 2, and an inner cover 31 extending into the driving groove 21 is arranged in the cup cover 3, and a plurality of limiting portions 32 extending vertically and enclosing to form a limiting area 33 are arranged at the bottom of the inner cover 31, and a linkage member 4 driven to rise and fall by a driving device 5 (not shown in the figure) is arranged in the limiting area 33, and linkage ends 41 and reinforcing ends 42 extending outward and circumferentially abutting against a plurality of the limiting portions 32 are arranged at intervals in the circumference of the linkage member 4, and the linkage ends 41 correspond to the driving area 212, and a fingerprint recognition device 6 communicating with the driving device 5 is arranged on the cup cover 3, and the driving device 5 is specifically electrically connected to the fingerprint recognition device 6 through a circuit board, and the fingerprint recognition The fingerprint recognition principle of device 6 is prior art and is not the main invention of this application, so it will not be elaborated here; when the fingerprint recognition device 6 recognizes and passes, the driving device 5 drives the linkage member 4 to descend to the linkage end 41 to enter the driving area 212 and circumferentially abut against the adjacent driving part 211, and then the cup cover 3 and the sealing cover 2 rotate in conjunction. At this time, the sealing cover 2 can be driven to rotate to open or close by rotating the cup cover 3. After the sealing cover 2 is rotated and closed, the driving device 5 drives the linkage member 4 to rise to the linkage end 41 to disengage from the driving area 212. At this time, the cup cover 3 and the sealing cover 2 are only connected in rotation, and rotating the cup cover 3 cannot drive the sealing cover 2 to rotate to open the cover.

[0037] The arrangement of the above structure, through the arrangement of the reinforcing end 42 circumferentially abutting against the plurality of limiting parts 32, enables the rotating cup cover 3 to transmit the force to the circumferentially pushing driving part 211 on the linkage part 4 through the inner cover 31 and the plurality of limiting parts 32 in sequence, and then drives the sealing cover 2 to rotate and open the cover, thereby improving the driving strength of the linkage part 4 driving the sealing cover 2 to open the cover, making the opening of the cover more labor-saving. At the same time, through the circumferential abutment between the reinforcing end 42 and the plurality of limiting parts 32, the force of the linkage end 41 can be transmitted to the plurality of limiting parts 32, and then to the inner cover 31, thereby improving the structural strength and stability of the linkage part 4, reducing the force on the driving end of the driving device 5, reducing the risk of the driving end of the driving device 5 breaking after frequent use of the fingerprint cup, resulting in the fingerprint cup being unable to be opened and used, improving the use stability and service life of the fingerprint cup, and improving the user experience.

[0038] In order to improve the matching stability between the inner cover 31, the linkage part 4 and the sealing cover 2, the number of the linkage ends 41 is set to one, the number of the reinforcement ends 42 is set to three and includes two short ends 421 and a long end 422, and the linkage end 41, the two short ends 421 and the long end 422 are vertically arranged in sequence, and the limiting portion 32 includes a first limiting column 321 with a first interlocking groove 325 adapted to one of the short ends 421 recessed on the inner side, a second limiting column 322 with a second interlocking groove 326 adapted to the other short end 421 formed between the first limiting column 321, and a third limiting column 323 and a fourth limiting column 324, the long end 422 is penetrated between the third limiting column 323 and the fourth limiting column 324, and the linkage end 41 is penetrated between the fourth limiting column 324 and the first limiting column 321 and one side circumferentially abuts against the fourth limiting column 324. Thus, by vertically arranging the linkage end 41, the two short ends 421 and the long end 422 in sequence to form a cross-shaped distribution, the structural strength of the linkage part 4 is improved, and the risk of breakage of the linkage end 41 and the reinforcement end 42 is reduced. At the same time, through the arrangement of the first limiting column 321, the second limiting column 322, the third limiting column 323, the fourth limiting column 324, the first interlocking groove 325, and the second interlocking groove 326, the contact area between the linkage end 41 and the reinforcement end 42 and the plurality of limiting parts 32 is increased, and the circumferential abutment strength between the linkage end 41 and the reinforcement end 42 and the plurality of limiting parts 32 is increased. While opening the cover is labor-saving, the matching stability between the inner cover 31, the linkage part 4, and the sealing cover 2 is further improved.

[0039] In order to further improve the matching stability between the linkage member 4 and the sealing cover 2, a linkage portion 411 corresponding to the driving area 212 is provided at the end of the linkage end 41, and the bottom two sides of the linkage portion 411 are inclined to form a guide portion 412 whose outer diameter gradually decreases from top to bottom, and the upper ends of several driving portions 211 are arranged with arc chamfers, and the bottom of the driving groove 21 is circumferentially recessed and provided with several positioning grooves 213 located on the inner side of several driving portions 211, and the bottom of the linkage end 41 is provided with a positioning column 413 located on the inner side of the linkage portion 411 and corresponding to several positioning grooves 213; after the driving device 5 drives the linkage member 4 to descend until the linkage portion 411 enters the driving area 212 and circumferentially abuts against the adjacent driving portion 211, and the positioning column 413 enters the positioning groove 213 and circumferentially abuts against it, the cup cover 3 rotates in conjunction with the sealing cover 2. Therefore, through the guiding and positioning cooperation between the guide part 412 and the positioning column 413 and the limiting guiding cooperation of the guide area, when the driving end of the driving device 5 drives the linkage part 4 to descend, the linkage part 411 can stably enter the driving area 212, thereby improving the stability of the linkage between the inner cover 31 and the sealing cover 2 through the linkage part 4. At the same time, the linkage part 4 can assist in pushing the sealing cover 2 to rotate and open the cover through the circumferential abutment between the positioning column 413 and the positioning groove 213, further increasing the contact area between the linkage part 4 and the driving groove 21, and increasing the thrust of the inner cover 31 to push the sealing cover 2 to rotate and open the cover through the linkage end 41, reducing the risk of stress concentration and wear and fracture of the linkage end 41, and improving the cooperation stability between the linkage part 4 and the sealing cover 2.

[0040] In order to improve the stability of the linkage member 4, the driving device 5 is arranged in the inner cover 31 and the driving end penetrates downward into the limit area 33. Specifically, the driving device 5 is set as a telescopic motor, the bottom of the inner cover 31 is provided with a limit switch 37 for closing the driving device 5, and the top of the long end 422 is protruded with a trigger part 4221 corresponding to the limit switch 37; the driving end of the driving device 5 drives the linkage member 4 to rise until the trigger part 4221 triggers the limit switch 37, and the driving device 5 stops driving. This avoids the situation where the driving end of the driving device 5 is excessively retracted, causing the linkage member 4 to loosen or even fall off, and improves the stability of the driving device 5 driving the linkage member 4 to rise.

[0041] In order to further improve the stability of the driving end of the driving device 5, the driving end of the driving device 5 is a screw rod 51 that is threaded through the linkage member 4 and exposed. The bottom side of the inner cover 31 is arranged in a step-like shape, and half of the protrusion is a boss 34, and the other half is recessed as a recess 35. Several limit parts 32, limit switches 37, linkage members 4, and screw rods 51 are all arranged on the recess 35. A bracket 36 is detachably provided at the bottom of the boss 34. One end of the bracket 36 is suspended corresponding to the screw rod 51 and is penetrated by a positioning hole 361. When the driving device 5 drives the linkage member 4 to descend to the linkage end 41 through the screw rod 51 and enters the driving area 212 and circumferentially abuts against the adjacent driving part 211, the lower end of the screw rod 51 is inserted into the positioning hole 361 for positioning. The positioning hole 361 assists in fixing the lower end of the screw 51, so that when the linkage member 4 pushes the driving part 211 through the linkage end 41 to drive the sealing cover 2 to rotate and open the cover, the torque exerted on the screw 51 can be transmitted to the inner cover 31 through the bracket 36, thereby preventing the screw 51 from being distorted, bent or even broken due to excessive force, thereby improving the stability of the screw 51.

[0042] In order to improve the practicality of the fingerprint cup, the outer bottom cover of the driving groove 21 is provided with a heat-conducting cover 22, and the outer side of the heat-conducting cover 22 is provided with a sealing ring 23. The middle part of the bottom of the driving groove 21 is concave and penetrates and connects the heat-conducting cover 22. Specifically, the heat-conducting cover 22 can be set as a stainless steel sheet. The middle part of the bracket 36 is provided with a temperature detection device (not shown in the figure) for detecting the temperature of the heat-conducting cover 22. Specifically, the temperature detection device is a temperature sensor. A display screen can be set on the top of the cup cover 3 to display the temperature detected by the temperature detection device. Thus, the temperature of the heat-conducting cover 22 is detected by the temperature detection device to obtain the water temperature in the cup body 1 and inform the user, thereby increasing the water temperature display function and improving the practicality of the fingerprint cup.

[0043] In order to improve the safety of the fingerprint cup, the bottom of the sealing cover 2 is recessed with a sealing groove 24 arranged around the outside of the driving groove 21, the upper end of the cup body 1 can be screwed and sealed and inserted into the sealing groove 24, and the sealing cover 2 is provided with a number of telescopic ejectors 25 that penetrate downward into the driving groove 21, and the telescopic ejectors 25 are in communication connection with the driving device 5; when the upper end of the cup body 1 is screwed and sealed and inserted into the sealing groove 24 and triggers the retraction of the telescopic ejectors 25, the driving device 5 drives the linkage member 4 to rise and disengage from the driving groove 21. Therefore, by adding the telescopic ejectors 25, after the sealing cover 2 rotates and closes in place, the linkage member 4 is retracted and disengaged from the driving groove 21, so that the cup cover 3 can only rotate around the sealing cover 2 and cannot open the sealing cover 2, thereby improving the immediacy of the fingerprint cup lock cover, and further improving the safety of the fingerprint cup.

[0044] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A highly stable fingerprint cup, characterized in that: include: Cup body (1); A sealing cover (2) is rotatably sealed on the cup mouth of the cup body (1); the top of the sealing cover (2) is concave to form a driving groove (21); the bottom of the driving groove (21) is provided with a plurality of driving parts (211) protruding at intervals in the circumferential direction; a driving area (212) is formed between two adjacent driving parts (211); The cup cover (3) is rotatably arranged on the outside of the sealing cover (2), the cup cover (3) is provided with an inner cover (31) extending into the driving groove (21), the bottom of the inner cover (31) is provided with a plurality of limiting parts (32) extending vertically and enclosing to form a limiting area (33), the limiting area (33) is provided with a linkage member (4) driven to rise and fall by a driving device (5), and the linkage member (4) is provided with linkage ends (41) extending outward and circumferentially abutting against a plurality of the limiting parts (32) at intervals in the circumferential direction. and a reinforcing end (42), the linkage end (41) corresponds to the driving area (212), and the cup cover (3) is provided with a fingerprint recognition device (6) which is in communication connection with the driving device (5); when the fingerprint recognition device (6) recognizes that it passes, the driving device (5) drives the linkage member (4) to descend until the linkage end (41) enters the driving area (212) and circumferentially abuts against the adjacent driving part (211), and then the cup cover (3) rotates in a linkage manner with the sealing cover (2).

2. A highly stable fingerprint cup as claimed in claim 1, characterized in that: The number of the linkage ends (41) is set to one, the number of the reinforcement ends (42) is set to three and includes two short ends (421) and a long end (422), the linkage end (41), the two short ends (421) and the long end (422) are arranged vertically in sequence, the limiting portion (32) includes a first limiting column (321) having a first engaging groove (325) adapted to the short end (421) and a first limiting column (321) having a recessed inner side and a first locking groove (325) adapted to the short end (421), and a first locking groove (325) between the first limiting column (321) and the first locking groove (325 ... A second limiting column (322) is formed with a second engaging groove (326) adapted to the other short end (421), as well as a third limiting column (323) and a fourth limiting column (324); the long end (422) is passed through the third limiting column (323) and the fourth limiting column (324); the linkage end (41) is passed through the fourth limiting column (324) and the first limiting column (321), and one side circumferentially abuts against the fourth limiting column (324).

3. The high stability fingerprint cup according to claim 1, characterized in that: The end of the linkage end (41) is provided with a linkage part (411) corresponding to the driving area (212); the bottom of the linkage part (411) is inclined at both sides to form a guide part (412) whose outer diameter gradually decreases from top to bottom; the upper ends of the plurality of driving parts (211) are arranged in an arc-shaped chamfer; the bottom of the driving groove (21) is recessed at intervals in the circumferential direction and provided with a plurality of positioning grooves (213) located inside the plurality of driving parts (211); the bottom of the linkage end (41) is provided with a positioning column (413) located inside the linkage part (411) and corresponding to the plurality of positioning grooves (213); after the driving device (5) drives the linkage member (4) to descend until the linkage part (411) enters the driving area (212) and circumferentially abuts against the adjacent driving part (211), and the positioning column (413) enters the positioning groove (213) and circumferentially abuts against, the cup cover (3) and the sealing cover (2) rotate in a linkage manner.

4. A highly stable fingerprint cup as claimed in claim 2, characterized in that: The driving device (5) is arranged in the inner cover (31) and the driving end extends downwardly into the limit zone (33); a limit switch (37) for closing the driving device (5) is provided at the bottom of the inner cover (31); a trigger portion (4221) corresponding to the limit switch (37) is provided on the top protrusion of the long end (422); after the driving end of the driving device (5) drives the linkage member (4) to rise to the trigger portion (4221) to trigger the limit switch (37), the driving device (5) stops driving.

5. A highly stable fingerprint cup as claimed in claim 4, characterized in that: The driving end of the driving device (5) is a screw rod (51) that is screwed through the linkage member (4) and exposed. The bottom side of the inner cover (31) is arranged in a step-like shape, and half of the raised part is a convex platform (34), and the other half is recessed to form a concave platform (35). The plurality of limit parts (32), the limit switch (37), the linkage member (4), and the screw rod (51) are all arranged on the concave platform (35). A bracket (36) is detachably provided at the bottom of the convex platform (34). One end of the bracket (36) is suspended in the air corresponding to the screw rod (51) and is penetrated by a positioning hole (361). When the driving device (5) drives the linkage member (4) to descend to the linkage end (41) through the screw rod (51), enters the driving area (212), and circumferentially abuts against the adjacent driving part (211), the lower end of the screw rod (51) is inserted into the positioning hole (361) for positioning.

6. A highly stable fingerprint cup as claimed in claim 5, characterized in that: The outer bottom of the driving groove (21) is covered with a heat-conducting cover (22), the outer side of the heat-conducting cover (22) is covered with a sealing ring (23), the middle part of the groove bottom of the driving groove (21) is concave and penetrates and communicates with the heat-conducting cover (22), and the middle part of the bracket (36) is provided with a temperature detection device for detecting the temperature of the heat-conducting cover (22).

7. The high stability fingerprint cup according to claim 1, characterized in that: The bottom of the sealing cover (2) is recessed and provided with a sealing groove (24) arranged around the outside of the driving groove (21); the upper end of the cup body (1) can be screwed and sealed and inserted into the sealing groove (24); a plurality of telescopic ejectors (25) are provided in the sealing cover (2) and penetrate downward into the driving groove (21); the plurality of telescopic ejectors (25) are in communication connection with the driving device (5); when the upper end of the cup body (1) is screwed and sealed and inserted into the sealing groove (24) and triggers the plurality of telescopic ejectors (25) to retract, the driving device (5) drives the linkage member (4) to rise and disengage from the driving groove (21).

Images