Lock for locking door leaf

Abstract

The lock for locking the door leaf comprises a first spring bolt, a second spring bolt and a first electric driver, and the first electric driver can drive the first spring bolt to retract; the lever component comprises an inner side end and an outer side handle; the inner side end of the lever component is in transmission connection with the second spring bolt, the outer side handle is used for receiving the pressing action of the hand, and when the outer side handle of the lever component is pressed and operated, the inner side end of the lever component can drive the second spring bolt to retract; a picking device is arranged on an outer side handle of the lever component and connected with a controller, and when the lever component is pressed by fingers to tilt so as to retract the second spring bolt, finger biological signals of the fingers implementing the pressing action can be synchronously picked through the picking device. The controller controls the first electric driver to act to drive the first spring bolt to retract so as to open the door leaf; therefore, the unlocking operation is greatly simplified, and the convenience is improved.

Description

Technical Field

[0001] The invention relates to a lock for locking a door leaf, in particular to a lock with two locking tongues, which can realize opening of the door leaf when the two locking tongues are retracted. Background Art

[0002] The anti-theft performance of the lock is one of the lock performances that people are most concerned about. In order to improve the anti-theft performance of the lock, at least two independent lock tongues are usually set on the lock, and an independent unlocking command input device is configured for each lock tongue. The unlocking command input device can be a handle, a biometric information collector, etc. For example, a wirelessly controlled intelligent fingerprint recognition lock disclosed in patent CN202010625267.5 includes: a main lock, a secondary lock, and an access control system for controlling the opening and closing states of the main lock and the secondary lock. The main lock includes: a main lock body with a slanted tongue, a slanted tongue limiting module, and an inner handle and an outer handle installed on both sides of the main lock body that can control the extension and retraction of the slanted tongue; the secondary lock includes: a secondary lock body with a dead tongue and a dead tongue control module for controlling the extension and retraction of the dead tongue; the access control system includes: an identity authentication device and an output module; wherein the output module is wirelessly connected to the slanted tongue limiting module and the dead tongue control module respectively; in a feasible implementation, the output module is wirelessly connected to the dead tongue control module via Bluetooth or WiFi or IR. The output module is connected to the latch bolt limiting module via Bluetooth, WiFi or IR wireless. The identity verification device is used to verify the identity of the user, and after the verification is passed, the door opening command is sent to the output module. The output module sends the received unlocking command to the latch bolt limiting module and the dead bolt control module respectively. The latch bolt limiting module releases the lock on the latch bolt according to the received door opening command, so that the user can control the extension and retraction of the latch bolt by rotating the outer handle. At the same time, the dead bolt control module controls the dead bolt to retract according to the received door opening command to realize the unlocking operation of the secondary lock, thereby finally completing the door opening operation and allowing the user to enter the room. In the above manner, after the identity verification is passed, the unlocking operation of the double lock body can be realized, which is convenient and fast, and the setting of the double lock body also improves the safety and reliability of the intelligent fingerprint recognition lock. The above technical solution proposes an unlocking solution, but it is completely useless in situations where the outer handle cannot be twisted and rotated. In view of this, in order to adapt to different application scenarios, it is necessary to propose another completely different unlocking solution. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention proposes a lock for locking a door leaf, comprising: two lock tongues, namely a first lock tongue and a second lock tongue, which can realize opening the door leaf when the first lock tongue and the second lock tongue are both retracted; a first electric drive, which can drive the first lock tongue to retract when the first electric drive is actuated; the feature is that it also comprises a lever component for operating outside the door to retract the second lock tongue, the lever component can be tilted around a fulcrum, and comprises an inner end and an outer handle; the inner end of the lever component is transmission-connected to the second lock tongue, and the outer handle of the lever component is used to receive the action of pressing by hand, and when the outer handle of the lever component is pressed, ... transmission-connected to the second lock tongue, and the inner end of the lever component is transmission-connected to the second lock tongue, and the outer handle of the lever component is transmission-connected to the second lock tongue, and the inner end of the lever component is transmission-connected to the second lock tongue, and the outer handle of the lever component is transmission-connected to the second lock tongue when the outer handle of the lever component is pressed When the handle is pressed, the lever component is tilted so that the inner end can drive the second lock tongue to retract; a picking device for picking up finger biological signals is provided on the outer handle of the lever component, and the electrical signal of the picking device is connected to the controller, and the controller is used to control the action of the first electric driver; when the lever component is tilted to retract the second lock tongue by pressing the finger, the finger biological signal of the finger performing the pressing action can also be synchronously picked up by the picking device, and when the picked up finger biological signal is judged to be an authorization signal, the first electric driver is controlled by the controller to drive the first lock tongue to retract to open the door leaf.

[0004] According to the above technical scheme, compared with the prior art, the beneficial technical effects of the present invention are: first, different from the unlocking method of rotating the handle proposed in the prior art, the lever component in the present invention provides a tilting unlocking method, which can be suitable for application scenarios where the handle is fixed and cannot move; secondly, since a picking device for picking up finger bio-signals is provided on the outer handle of the lever component, when the lever component is operated by pressing a finger, the picking device can also pick up the finger bio-signal of the finger performing the pressing action, and two tasks are completed in one step, which greatly simplifies the unlocking operation and optimizes the convenience of unlocking.

[0005] Since the present invention has the above characteristics and advantages, it can be applied to a lock for locking a door leaf. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a three-dimensional structural schematic diagram of a lock for locking a door leaf using the technical solution of the present invention;

[0007] Figure 2 It is a schematic plan view of the structure of a lock for locking a door leaf in the front view direction using the technical solution of the present invention;

[0008] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure in the AA direction;

[0009] Figure 4is a schematic diagram of the three-dimensional structure of the lever component 3;

[0010] Figure 5 is a schematic diagram of the three-dimensional structure of the cover plate 5;

[0011] Figure 6 is a schematic structural diagram of another embodiment using a movable pickup device 4;

[0012] Figure 7 is a schematic diagram of the exploded structure of the inner handle assembly;

[0013] Figure 8 is a schematic diagram of the three-dimensional structure after the handle and the linkage ring are connected together;

[0014] Fig. 9 is a structural schematic diagram of the locking mechanism;

[0015] Fig.10 Figure 4 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0016] Fig.11 is a schematic diagram of the three-dimensional structure of the electric power input device;

[0017] Fig.12 It is a schematic diagram of the planar structure of the electric power input device. DETAILED DESCRIPTION

[0018] The structure of the lock for locking a door leaf using the technical solution of the present invention is further described below in conjunction with the accompanying drawings. Except for those explicitly described as equivalent or optional implementation schemes, the various implementation details disclosed below can be selectively applied or combined in one embodiment even if they are not directly related or coordinated in terms of function.

[0019] like Figures 1 to 3As shown, a lock for locking a door leaf includes a first lock module 100 and a second lock module 200. The first lock module 100 includes a first lock core 1, a transmission shaft 11 and a first lock body 12, and the first lock body 12 includes a first lock housing 120, a first turner 121 with a dial handle and a first lock tongue 122. The first turner 121 can rotate on the first lock housing 120 and drive the first lock tongue 122 to telescopically move on the first lock housing 120 through the dial handle thereon. In this embodiment, the first lock tongue 122 is a dead tongue. A first outer panel 13 is arranged on the outer side of the first lock body 12, and a panel hole is arranged on the first outer panel 13, and the key hole on the first lock core 1 is exposed to the panel hole. A knob 15 is arranged on the inner side of the first lock body 12, and the transmission shaft 11 passes through the first turner 121, one end of the transmission shaft 11 is connected to the first lock core 1 in a transmission manner, and the other end is inserted into the knob 15. An inner panel 14 is arranged on the outer side of the first lock body 12. A first electric driver 16 is arranged on the inner side of the inner panel 14. The first electric driver 16 is connected to the transmission shaft 11 in transmission. After receiving the signal of opening the door leaf 300, the first electric driver 16 drives the transmission shaft 11 to rotate, and the rotating transmission shaft 11 drives the handle of the first dial 121 to rotate to drive the first lock tongue 122 to retract. Among them, the first electric driver 16 can be a device that can output driving force under the control of an electric signal, such as a motor and an electromagnet. After receiving the signal of locking the door leaf 300, the retracted first lock tongue 122 can be extended again under the drive of the first electric driver 16, or can be extended to lock the door leaf under the drive of other mechanisms. For example, when the door leaf is combined with the door frame in place, a locking signal is formed by sensing the combined signal using a sensor. Inside the door, when the knob 15 is manually turned to drive the transmission shaft 11 to rotate, the transmission shaft 11 will drive the first lock tongue 122 to retract or extend through the handle of the first dial 121. Outside the door, manually insert a matching key into the first lock core 1 and turn the key, and the first lock core 1 will drive the handle of the first turner 121 to rotate through the transmission shaft 11 to drive the first lock tongue 122 to retract.

[0020] The first lock cylinder 1 and the knob 15 are manual power input devices. In different applications, the manual power input device will have different installation positions. In order to adapt to the above requirements, the following solutions are further proposed below: Fig.11 and Fig.12As shown, it also includes a transmission shaft 11, which can drive the first locking tongue 122 to retract when the transmission shaft 11 rotates; a manual power input device, which is used to manually drive the transmission shaft 11 to rotate; an electric power input device, which is used to electrically drive the transmission shaft 11 to rotate, and the electric power input device includes the first electric driver 16 and the first transmission wheel 401 and the second transmission wheel 402 that rotate respectively under the drive of the first electric driver 16, and the rotation center lines of the first transmission wheel 401 and the second transmission wheel 402 are parallel to each other and arranged at intervals; the transmission shaft 11 can be selectively combined with one of the first transmission wheel 401 and the second transmission wheel 402 according to the installation position of the manual power input device and rotate under the drive of the combined transmission wheel to drive the first locking tongue 122 to retract. Further, the first transmission wheel 401 and the second transmission wheel 402 are gears, and a third gear 403 is meshed and transmitted between the first transmission wheel 401 and the second transmission wheel 402; and also includes a driving gear 400 installed on the first electric driver 16 and capable of rotating under the drive of the first electric driver 16, and the driving gear 400 is meshed and transmitted with the first transmission wheel 401. Wherein, the transmission shaft 11 can be a flat iron. In this embodiment, a pillow-shaped hole 4010 is provided in the center of the first transmission wheel 401, and the knob 15 has a rotating shaft that is adapted to the shape of the pillow-shaped hole 4010, and the rotating shaft is inserted into the pillow-shaped hole 4010, and the transmission shaft 11 is inserted into the rotating shaft of the knob 15. A square hole 4020 is provided in the center of the second transmission wheel 402. When it is necessary to change and adjust the first lock cylinder 1 to a position corresponding to the second transmission wheel 402, it is necessary to change the transmission shaft 11 to be inserted into the square hole 4020, and the position of the knob 15 can be unchanged. In other embodiments, other transmission mechanisms may be provided between the first electric driver 16 and the first locking tongue 122 to drive the first locking tongue 122 to retract, and then another transmission mechanism may be used to drive the first locking tongue 122 to extend.

[0021] like Figures 1 to 3As shown, the second lock module 200 includes a first square iron 2 and a second lock body 22. The second lock body 22 includes a second lock housing 220, a second lock tongue 221 and a first left-side turner 222 with a handle. One end of the first square iron 2 is radially linked with the first left-side turner 222. The first left-side turner 222 can rotate on the second lock housing 220 under the drive of the first square iron 2 and drive the second lock tongue 221 to telescopically move on the second lock housing 220 through the handle thereon. When the first lock tongue 122 and the second lock tongue 221 are both retracted, the door leaf can be opened. Conversely, when any of the lock tongues is extended, the door leaf can be locked. In this embodiment, the second lock tongue 221 is an oblique tongue. A second outer panel 21 is arranged on the outer side of the second lock body 22, which is arranged above and below the first outer panel 13. An outer handle 23 is fixed on the second outer panel 21. The outer handle 23 includes a gripping portion 230 extending in the up-down direction.

[0022] like Figure 3 and Figure 4 As shown, the lock also includes a lever component 3 for operating outside the door to retract the second lock tongue 221, the lever component 3 can be tilted around a fulcrum, and the lever component 3 includes an inner end 30 and an outer handle 31; the inner end 30 of the lever component 3 is transmission-connected to the second lock tongue 221, and the outer handle 31 of the lever component 3 is used to receive the action of pressing by the hand. When the outer handle 31 of the lever component 3 is pressed, the lever component 3 is tilted so that the inner end 30 can drive the second lock tongue 221 to retract; on the outer handle 31 of the lever component 3 A picking device 4 for picking up finger biological signals is provided, and the electrical signals of the picking device 4 are connected to a controller (not shown in the figure), and the controller is used to control the action of the first electric driver 16; when the lever component 3 is tilted by pressing a finger to retract the second lock tongue 221, the finger biological signal of the finger performing the pressing action can also be picked up synchronously by the picking device 4, and when the picked up finger biological signal is judged to be an authorization signal, the first electric driver 16 is controlled by the controller to drive the first lock tongue 122 to retract to open the door leaf.

[0023] The inner end 30 and the outer handle 31 of the lever component 3 are named after two relative positions on the lever component 3. One end of the lever component 3 is named as the inner end 30, and the part opposite to the inner end 30 is called the outer handle 31. The structure of the lever component 3 is various. For example, the extension directions of the inner end 30 and the outer handle 31 can be parallel or inclined to each other. A transmission device is arranged between the inner end 30 and the first square iron 2. The structure of the transmission device is various. For example, a rack driven by the inner end 30 to translate and a gear meshed with the rack are arranged. The gear is radially linked with the first square iron 2, and can synchronously drive the second lock tongue 221 to reset when the lever component 3 is reset. Of course, in other embodiments, when the lever component 3 is reset, the second lock tongue 221 may not be driven to reset, and a reset spring driving the second lock tongue 221 to extend and reset is additionally arranged.

[0024] like Figure 4 and Figure 5 As shown, the outer handle 31 of the lever component 3 is provided with a receiving cavity 310, and at least part of the pickup device 4 is accommodated in the receiving cavity 310; the outer handle 31 is provided with a groove 311, the groove 311 is connected to the receiving cavity 310, and the groove 311 extends from the receiving cavity 310 toward the inner end 30; and also includes a cover plate 5, the cover plate 5 covers the groove 311, and the groove 311 is used to accommodate the signal line that transmits the electrical signal. The lever component 3 and the cover plate 5 can be arranged up and down or left and right, and the signal line can be conveniently arranged in the groove 311 after removing the cover plate 5. The groove 311 becomes a wire passage for the signal line, so that the signal line is accommodated between the lever component 3 and the cover plate 5 and is not easily damaged. According to the layout position of the controller, the connection object of the signal line changes accordingly. In this embodiment, the controller is stored inside the inner panel 14, one end of the signal line is connected to the pickup device 4, and the other end passes through the groove 311 and extends out to connect to the controller, and the first electric driver 16 is connected to the controller through another signal line; in other embodiments, the controller is stored in the accommodating cavity 310 and integrated with the pickup device 4, one end of the signal line is connected to the controller, and the other end passes through the groove 311 and extends out to connect to the first electric driver 16. Secondly, at least part of the pickup device 4 is accommodated in the accommodating cavity 310 means that the entire or part of the pickup device 4 is accommodated in the accommodating cavity 310.

[0025] like Fig.10As shown, the accommodating cavity 310 and the groove 311 are both open upward; the lower part of the outer handle 31 is raised downward to form a protrusion 312, and the protrusion 312 extends from the bottom cavity wall of the accommodating cavity 310 to the inner end 30 to improve the structural strength of the lever component 3. From the cross section of the outer handle 31, the groove 311 extends from the upper surface of the outer handle 31 to the protrusion 312. Further, the upper part of the outer handle 31 is in the shape of a thin plate, and the accommodating cavity 310 also extends from the upper surface of the outer handle 31 to the protrusion 312. The protrusion 312 becomes a reinforcing rib of the outer handle 31. When the user applies a pressing force to press the pickup device 4, the protrusion 312 can effectively disperse and offset part of the pressing force, thereby reducing the shaking amount of the pickup device 4 when being pressed, and extending the service life of the lever component 3. In addition, the protrusion 312 is cleverly used to provide a layout space for the groove 311, providing a technical basis for the lever component 3 to adopt a small volume. The lever component 3 is arranged just above the outer handle 23. When the four fingers of a person's hand hold the gripping portion 230 of the outer handle 23, the thumb can press and operate the lever component 3. When the first lock tongue 122 and the second lock tongue 221 are retracted, the door leaf is opened by pushing and pulling the outer handle 23. The action is done in one go and is very convenient. Of course, in other embodiments, a motor can also be set on the door leaf, and the motor drives the door leaf to open automatically. In this case, the setting of the outer handle 23 can be omitted, and the structure of the groove 311 can also be diverse, for example, it can be through from top to bottom, that is, the groove 311 is not only open upward but also open downward. At this time, an additional back plate covers the lower notch of the groove 311.

[0026] like Figures 2 to 4 As shown, a shaft hole 33 is arranged between the inner end 30 of the lever component 3 and the outer handle 31, and a shaft 39 is inserted into the shaft hole 33. The shaft 39 is fixedly connected to the second outer panel 21, and the lever component 3 can be tilted with the shaft 39 as a fulcrum; a key module 210 is arranged on the second outer panel 21, and the key module 210 is electrically connected to the controller; a plurality of keys are arranged on the key module 210, and the keys are used to pick up manual key signals. When the picked-up key signal is judged to be an authorization signal, the controller controls the first electric drive 16 to drive the first lock tongue 122 to retract to open the door leaf. In this way, in addition to the picking device 4, the authorization signal can also be picked up by the key module 210, providing another additional unlocking method, improving the unlocking convenience and diversity of the lock, and optimizing the application experience.

[0027] Furthermore, the second outer panel 21 includes an outer decorative panel 211 and an inner bottom plate 212 located on the inner side of the outer decorative panel 211, the rotating shaft 39 is fixedly connected to the outer decorative panel 211, and the key module 210 is arranged on the outer decorative panel 211; an interlayer space 213 is arranged between the outer decorative panel 211 and the inner bottom plate 212, and the signal line extends from the groove 311 and then passes through the interlayer space 213.

[0028] The cover plate 5 is fixedly connected to the outer handle 31 and covers the accommodating cavity 310. Figure 4 and 5 As shown, the cover plate 5 is provided with a cover plate window 52, ​​and the top surface of the pickup device 4 is exposed to the cover plate window 52. The cover plate 5 is in a basin shape and includes a skirt 51 bent along the side, and the cover plate 5 covers the side edge 313 of the outer handle 31 through the skirt 51. A positioning notch 510 is provided on the skirt 51, and a positioning wing 32 adapted to the positioning notch 510 and extending horizontally is provided on the side edge 313 of the outer handle 31; the positioning wing 32 is inserted into the positioning notch 510, and the outer side surface of the positioning wing 32 is substantially flush with the outer side surface of the skirt 51 of the cover plate 5. A connecting hole 34 is provided on the outer handle 31, and a part of the connecting hole 34 extends to the positioning wing 32; a fastening screw passes through the connecting hole 34 and is locked to the cover plate 5. In this way, the cover plate 5 can be initially positioned by using the cooperation between the positioning notch 510 and the positioning wing 32, and the positioning wing 32 can also be used to provide layout space for the connection hole 34, so that the outer handle 31 has a compact structure and reduces the amount of consumables. The cover plate 5 only covers the side edge 313 of the upper part of the outer handle 31, leaving the protrusion 312 exposed. In other embodiments, the cover plate 5 can also extend downward to store the protrusion 312.

[0029] The position of the pickup device 4 in the above technical solution is fixed, but the arm length of each user and the position where they stand when unlocking are different. In order to fit the finger onto the pickup device 4, the user needs to stretch or curl the finger to adjust the position of the finger, which not only destroys the comfort, but also reduces the accuracy of the pickup device 4 in picking up the finger bio-signal. In view of this, the present invention further improves the above technical solution and proposes a movable pickup device 4 below, in which the same parts are marked with the same reference numerals and will not be discussed repeatedly. The following focuses on the above technical solution. Figure 4 , Figure 5 The main differences of the structures shown.

[0030] like Figure 6 As shown, Figure 4 , Figure 5The difference between the structures shown is that, as a slidable cover plate structure, the cover plate 7 is slidably mounted on the outer handle 31, and the moving direction of the cover plate 7 is the same as the extending direction of the groove 311; the cover plate 7 is provided with a cover plate window (blocked by the pick-up device 4 and not marked in the figure), at least part of the pick-up device 4 is inserted into the cover plate window and the top surface of the pick-up device 4 is exposed to the cover plate window, the pick-up device 4 is fixed on the cover plate 7 and can move with the cover plate 7, and the extending length of the accommodating cavity 310 in the extending direction of the groove 311 is adapted to the stroke of the pick-up device 4. The accommodating cavity 310 is provided with a sliding component 8 and a reset spring 80 capable of driving the sliding component 8 to slide and reset, and the pick-up device 4 is fixedly connected to the sliding component 8. Further, it also includes a fixed cover plate 9, which is fixedly arranged between the cover plate 7 and the outer handle 31, and a avoidance hole 90 for avoiding the pick-up device 4 is arranged on the fixed cover plate 9.

[0031] In other embodiments, based on the differences in finger placement angles of different user groups, an elastically compressible supporting component (not shown in the figure) can be further provided between the picking device 4 and the bottom wall of the accommodating cavity 310, so that the picking device 4 can be swung slightly within a certain angle range to adjust the angle.

[0032] like Fig. 9As shown, a positioning socket 35 is provided on the lever component 3; and a locking mechanism capable of preventing the lever component 3 from tilting is also provided, wherein the locking mechanism comprises a second electric driver 36 connected to the controller electrical signal, a movable pin 37 capable of being inserted into or removed from the positioning socket 35, and an elastic member 38 for driving the movable pin 37 to leave the positioning socket 35. A push block 360 having an inclined push surface is connected to the output shaft of the second electric driver 36, and a guide structure (not shown) for guiding the movable pin 37 to move telescopically is provided on the lock. Under normal conditions, the inclined push surface of the push block 360 pushes the movable pin 37 to keep it inserted into the positioning socket 35, and the elastic member 38 is in a compressed state. When the picked-up finger bio-signal is judged to be an authorization signal, the controller controls the second electric driver 36 to drive the push block 360 to move downward, so that the movable pin 37 can leave the positioning socket 35 under the drive of the elastic member 38, and the lever component 3 can be pressed and tilted. When the picked-up finger biometric signal is determined to be an unauthorized signal, the second electric driver 36 does not move, and the movable pin 37 remains inserted in the positioning hole 35 to prevent the lever component 3 from tilting, so that not only the second lock tongue 221 cannot be retracted, but also the first lock tongue 122 cannot be retracted, further enhancing the security of the lock. The second electric driver 36 can be an electromagnetic displacement drive device, and the elastic member 38 can be a spring.

[0033] like Figure 3 , Figure 7 and Figure 8As shown, it also includes a first square iron 2, a second square iron 2a, an inner handle 82a and a trigger switch 92a. After the lock is installed, the second square iron 2a and the first square iron 2 will not be linked to each other, so that the first square iron 2 and the second square iron 2a respectively drive the second lock tongue 221, and when the first square iron 2 or the second square iron 2a rotates, the second lock tongue 221 can be driven to be retracted; the lever component 3 is transmission-connected to the first square iron 2, and when the lever component 3 is tilted, it can drive the first square iron 2 to rotate and then drive the second lock tongue 221 to be retracted; the inner handle 82a is arranged on the inner side of the door leaf, and the inner handle The hand 82a is connected to the second square iron 2a in transmission, and the trigger switch 92a is arranged on the side of the inner handle 82a and responds to the rotation signal of the inner handle 82a. The trigger switch 92a signal is connected to the controller. When the inner handle 82a is rotated, it can not only drive the second square iron 2a to rotate and then drive the second lock tongue 221 to be retracted, but also transmit the rotation signal of the inner handle 82a to the controller through the trigger switch 92a. After receiving the rotation signal, the controller controls the first electric driver 16 to act, drags the first lock tongue 122 to retract and realizes unlocking the door. Then after a specific time, such as 10s, the controller controls the first electric driver 16 to act again, drags the first lock tongue 122 to extend.

[0034] Among them, it also includes a positioning rod 223 fixed on the inner bottom plate 212, and the first square iron 2 and the second square iron 2a are respectively hollow and are inserted into the positioning rod 223 and can rotate on the positioning rod 223. The second lock body 22 also includes a second right-side turner 222a with a handle, and the second right-side turner 222a and the first left-side turner 222 are not linked to each other. One end of the second square iron 2a is radially linked to the second right-side turner 222a, and the other end of the second square iron 2a is radially linked to the inner handle 82a. When the inner handle 82a is turned to drive the second square iron 2a to rotate, the second square iron 2a can drive the handle of the second right-side turner 222a to rotate to drive the second lock tongue 221 to retract or extend.

[0035] Furthermore, the inner handle 82a includes a gripping portion 822a and a handle shaft 821a, and the gripping portion 822a is detachably connected to the handle shaft 821a. A connecting claw group is provided on the handle shaft 821a, and each connecting claw group includes a pair of connecting claws 820a with a left-right symmetrical structure, and the connecting claw 820a is L-shaped, including a vertical portion 8201 and a horizontal portion 8202. It also includes a linkage ring 8a connected to the inner handle 82a, and a connecting groove 801a is provided on the linkage ring 8a, and one connecting groove 801a is arranged corresponding to one connecting claw 820a. After two connecting claws belonging to the same group are inserted into two adjacent connecting grooves 801a, the vertical portion of the connecting claw on the left side supports the left side wall of the connecting groove on the left, and the vertical portion of the connecting claw on the right side supports the right side wall of the connecting groove on the right. Then, the connecting claw 820a is bent so that the transverse portion 8202 overlaps the linkage ring 8a to prevent the linkage ring 8a from moving axially inward and disengaging from the handle shaft 821a. The cooperation between a pair of connecting claws 820a and a pair of connecting grooves 801a belonging to the same group enables the inner handle 82a to drive the linkage ring 8a to rotate. The linkage ring 8a is provided with a ring hole 80a. The other end of the second square iron 2a extends into the ring hole 80a and forms a transmission connection with the linkage ring 8a. When the inner handle 82a is rotated, the linkage ring 8a also rotates, so that the second square iron 2a can also rotate with the linkage ring 8a. The inner handle 82a, the linkage ring 8a and the trigger switch 92a constitute an inner handle assembly.

[0036] In this embodiment, the linkage ring 8a further adopts the following structure. A pair of radial protrusions 81a arranged circumferentially at intervals are provided on the outer edge of the linkage ring 8a, and a radial recessed notch is formed between the pair of radial protrusions 81a; a spring sheet 9a is also included, and the spring sheet 9a is located between the linkage ring 8a and the trigger switch 92a. The spring sheet 9a includes a pair of fixed legs 90a and a spring body 93a connected between the pair of fixed legs 90a. A feeler portion 91a is provided on the spring body 93a, which is bent in the direction of the notch, and the feeler portion 91a extends into the notch; when the inner handle 82a is rotated in either the forward or reverse direction, the linkage ring 8a rotates and presses the feeler portion 91a through one of the radial protrusions 81a, so that the spring sheet 9a is deformed and the trigger switch 92a is triggered to transmit the handle rotation signal to the controller. A torsion spring (not shown) capable of driving the linkage ring 8a to rotate and reset is also included. When the inner handle 82a is released by a person, the torsion spring drives the linkage ring 8a to rotate and reset, and at the same time, the linkage ring 8a drives the second square iron 2a to rotate and further drives the second locking tongue 221 to extend.

[0037] In another embodiment, a screw-type handle (not shown) can be used to replace the lever component 3, and the pickup device 4 is arranged on the screw-type handle, and the screw-type handle is connected to the second lock tongue 221. When the screw-type handle is rotated, the second lock tongue 221 can be retracted. At the same time, the pickup device 4 picks up the finger bio-signal of the finger that performs the rotation action. When the picked-up finger bio-signal is determined to be an authorization signal, the controller controls the first electric drive 16 to drive the first lock tongue 122 to retract to open the door leaf. The screw-type handle can be a ball-shaped or L-shaped handle.

Claims

1. Locks for locking door leaves, including: The two lock tongues are a first lock tongue and a second lock tongue, and the door leaf can be opened when the first lock tongue and the second lock tongue are both retracted; the first electric drive can drive the first lock tongue to retract when the first electric drive is actuated; the characteristic is that it also includes a lever component for operating outside the door to retract the second lock tongue, the lever component can be tilted around a fulcrum, and includes an inner side end and an outer side handle; the inner side end of the lever component is transmission-connected to the second lock tongue, and the outer side handle of the lever component is used to receive the action of pressing by the hand, and when the outer side handle of the lever component is pressed, the lever component is tilted to allow the second lock tongue to be retracted. The inner end can drive the second lock tongue to retract; a picking device for picking up finger biological signals is arranged on the outer handle of the lever component, and the electrical signal of the picking device is connected to the controller, and the controller is used to control the action of the first electric driver; when the lever component is tilted by pressing the finger to retract the second lock tongue, the finger biological signal of the finger performing the pressing action can also be picked up synchronously by the picking device; when the picked up finger biological signal is judged to be an authorization signal, the first electric driver is controlled by the controller to drive the first lock tongue to retract to open the door leaf.

2. The lock for locking a door leaf according to claim 1, characterized in that: A accommodating cavity is provided on the outer handle of the lever component, and at least a part of the picking device is accommodated in the accommodating cavity; a groove is provided on the outer handle, the groove is connected to the accommodating cavity, and the groove extends from the accommodating cavity toward the inner end; it also includes a cover plate, the cover plate covers the groove, and the groove is used to accommodate signal lines that transmit electrical signals.

3. The lock for locking a door leaf according to claim 2, characterized in that: The accommodating cavity and the groove are both open upward, and the lower part of the outer handle bulges downward to form a protrusion. The protrusion extends from the bottom cavity wall of the accommodating cavity toward the inner end to improve the structural strength of the lever component. From the cross-section of the outer handle, the groove extends from the upper surface of the outer handle to the protrusion.

4. The lock for locking a door leaf according to claim 2, characterized in that: The cover plate is fixedly connected to the outer handle; a cover plate window is arranged on the cover plate, and the top surface of the picking device is exposed to the cover plate window; the cover plate is basin-shaped and includes a skirt bent along the side edge, and the cover plate covers the side edge of the outer handle through the skirt.

5. The lock for locking a door leaf according to claim 4, characterized in that: A positioning notch is provided on the skirt, and a positioning wing portion is provided on the side edge of the outer handle, which is adapted to the positioning notch and extends horizontally; the positioning wing portion is inserted into the positioning notch, and the outer side surface of the positioning wing portion is basically flush with the outer side surface of the skirt of the cover plate.

6. The lock for locking a door leaf according to claim 5, characterized in that: A connecting hole is arranged on the outer handle, a part of which extends to the positioning wing; a fastening screw passes through the connecting hole and is locked onto the cover plate.

7. The lock for locking a door leaf according to claim 2, characterized in that: The cover plate is slidably mounted on the outer handle, and the moving direction of the cover plate is the same as the extending direction of the groove; a cover plate window is provided on the cover plate, at least a part of the picking device is inserted into the cover plate window and the top surface of the picking device is exposed to the cover plate window, the picking device is fixed on the cover plate and can move with the cover plate, and the extending length of the accommodating cavity in the extending direction of the groove is adapted to the stroke of the picking device.

8. The lock for locking a door leaf according to claim 7, characterized in that: A sliding component and a return spring capable of driving the sliding component to slide and return are arranged in the accommodating cavity, and the picking device is fixedly connected to the sliding component.

9. The lock for locking a door leaf according to any one of claims 2 to 8, characterized in that: It also includes an outer panel, a shaft hole is arranged between the inner end of the lever component and the outer handle, a shaft is inserted in the shaft hole, the shaft is fixedly connected to the outer panel, and the lever component can be tilted with the shaft as a fulcrum; a key module is arranged on the outer panel, and the electrical signal of the key module is connected to the controller; a plurality of keys are arranged on the key module, and the keys are used to pick up manual key signals. When the picked-up key signal is judged to be an authorization signal, the first electric drive is controlled by the controller to drive the first lock tongue to retract to open the door leaf.

10. The lock for locking a door leaf according to claim 9, characterized in that: The outer panel includes an outer decorative panel and an inner bottom plate located on the inner side of the outer decorative panel, the rotating shaft is fixedly connected to the outer decorative panel, and the key module is arranged on the outer decorative panel; an interlayer space is arranged between the outer decorative panel and the inner bottom plate, and the signal line extends from the groove and then passes through the interlayer space.

11. The lock for locking a door leaf according to any one of claims 1 to 8, characterized in that: The invention also includes a first square iron, a second square iron, an inner handle and a trigger switch. After the lock is installed, the second square iron and the first square iron will not be linked to each other, so that the first square iron and the second square iron respectively transmit the second lock tongue, and when the first square iron or the second square iron rotates, the second lock tongue can be driven to be retracted; the lever component is connected to the first square iron in a transmission manner, and when the lever component is tilted, the first square iron can be driven to rotate and then drive the second lock tongue to be retracted; the inner handle is arranged on the inner side of the door leaf, and the inner handle is connected to the second square iron in a transmission manner, the trigger switch is arranged on the side of the inner handle and responds to the rotation signal of the inner handle, and the trigger switch signal is connected to the controller. When the inner handle is rotated, not only can the second square iron be driven to rotate and then drive the second lock tongue to be retracted, but also the rotation signal of the inner handle can be transmitted to the controller through the trigger switch. After receiving the rotation signal, the controller controls the first electric drive to act, and drags the first lock tongue to retract to realize unlocking inside the door.

12. The lock for locking a door leaf according to any one of claims 1 to 8, characterized in that: It also includes a transmission shaft, which can drive the first locking tongue to retract when the transmission shaft rotates; a manual power input device, which is used to manually drive the transmission shaft to rotate; an electric power input device, which is used to electrically drive the transmission shaft to rotate, and the electric power input device includes the first electric driver and a first transmission wheel and a second transmission wheel that rotate respectively under the drive of the first electric driver, and the rotation center lines of the first transmission wheel and the second transmission wheel are parallel to each other and arranged at intervals; the transmission shaft can be selectively combined with one of the first transmission wheel and the second transmission wheel according to the installation position of the manual power input device and rotate under the drive of the combined transmission wheel to drive the first locking tongue to retract.

13. The lock for locking a door leaf according to claim 12, characterized in that: The first transmission wheel and the second transmission wheel are both gears, and a third gear is meshed and transmitted between the first transmission wheel and the second transmission wheel; it also includes a driving gear installed on the first electric driver and capable of rotating under the drive of the first electric driver, and the driving gear is meshed and transmitted with the first transmission wheel.

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