An intelligent lock

Abstract

This invention provides a smart lock, including a housing, a bolt assembly, a handle drive assembly, a motor drive assembly, and a lock cylinder drive assembly. The bolt assembly includes a bolt movably disposed within the housing. The handle drive assembly is connected to the bolt to drive the bolt to extend or retract into the housing. The motor drive assembly is also connected to the bolt to drive the bolt to extend or retract into the housing. The lock cylinder drive assembly is connected to the bolt to drive the bolt to extend or retract into the housing. By configuring the handle drive assembly, motor drive assembly, and lock cylinder drive assembly to all be connected to the bolt, and by ensuring that each of these components is independent, the bolt can be independently driven to extend or retract into the housing. This provides multiple methods for driving the bolt, ensuring that if one unlocking method fails, other methods can be used to unlock the lock, thus guaranteeing the normal operation of the smart lock.

Description

Technical Field

[0001] This invention relates to the field of lock technology, and more specifically to a smart lock. Background Technology

[0002] As the population continues to increase, so does the number of houses. Door locks are one of the most important structures controlling the opening and closing of houses. Therefore, people's expectations and requirements for door locks are also getting higher and higher. Currently, door locks usually use motor locks, which use a motor to drive the lock cylinder to rotate, thereby opening and closing the door.

[0003] Existing smart door locks mainly use fingerprints, passwords, and proximity cards for unlocking. After the internal chip processes the data, it controls the motor to drive the driven component, thereby achieving the unlocking action.

[0004] However, the aforementioned smart door locks have too limited unlocking methods. If the control motor is damaged or there is a power outage, they cannot unlock properly, affecting normal use. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is that the unlocking method of the smart door lock in the prior art is too simple. After the control motor is damaged or the power is cut off, it cannot be unlocked normally, which affects normal use.

[0006] Therefore, the present invention provides a smart lock, comprising:

[0007] case;

[0008] A latch assembly includes a latch, the latch being movably disposed within the housing;

[0009] A handle drive assembly is connected to the latch to drive the latch to extend or retract into the housing;

[0010] A motor drive assembly is connected to the latch to drive the latch to extend or retract into the housing;

[0011] A lock cylinder drive assembly is connected to the lock tongue to drive the lock tongue to extend or retract into the housing;

[0012] The handle drive assembly, the motor drive assembly, and the lock cylinder drive assembly are all independent of each other, so that the three can independently drive the bolt to extend or retract into the housing.

[0013] Optionally, the locking tongue assembly further includes:

[0014] A locking tongue fixing plate is movably connected to the housing.

[0015] The linkage trigger is movably connected to the locking tongue fixing plate;

[0016] A large latch is connected to the housing, and a first elastic element is provided between the large latch and the housing;

[0017] A small latch is connected to the housing, and a second elastic element is provided between the small latch and the housing;

[0018] During the closing process of the door, the linkage trigger is connected to the large lock tongue, and the lock tongue fixing plate is configured to drive the large lock tongue into the housing together under the action of external force through the linkage trigger.

[0019] When the door is closed, the latch fixing plate is configured to extend out of the housing under external force and drive the linkage trigger to separate from the large latch. The large latch extends out of the housing under the action of the first elastic member, and the small latch is squeezed by the door frame and is located inside the housing.

[0020] During the opening of the door, the linkage trigger is connected to the large lock tongue, and the lock tongue fixing plate is configured to drive the large lock tongue into the housing together through the linkage trigger under the action of external force;

[0021] When the door is open, the small latch moves outward from the housing under the action of the second elastic element, causing the small latch to abut against the linkage trigger, thereby driving the linkage trigger to separate from the large latch. The large latch then extends out of the housing under the action of the first elastic element.

[0022] Optionally, the latch assembly further includes a linkage plate, one side of which is fixedly connected to the latch fixing plate, and the other side of the linkage plate is hinged to the linkage trigger.

[0023] A third elastic element is connected between the linkage plate and the linkage trigger element, and the third elastic element has an elastic force that drives the linkage trigger element to connect with the large lock tongue.

[0024] When the door is open, the small latch moves outward from the housing to drive the linkage trigger to rotate around the linkage plate against the elastic force of the third elastic element, so as to separate from the large latch.

[0025] Optionally, the large bolt is provided with a large bolt trigger plate, and the linkage trigger is provided with a trigger part;

[0026] When the door is closed, the trigger part abuts against the outside of the large latch trigger plate to drive the large latch to move into the housing;

[0027] When the door is open, the triggering part separates from the large latch trigger plate.

[0028] Optionally, after the large latch extends out of the housing under the action of the first elastic member, the latch fixing plate drives the linkage trigger member to move outward of the housing under the action of external force, and the trigger part overcomes the elastic force of the third elastic member and enters the outer side of the large latch trigger plate from the inside.

[0029] Optionally, when the triggering part is configured to move outward toward the outer side of the housing, the triggering part slides against the large latch trigger plate to drive the linkage trigger to rotate around the linkage plate against the elastic force of the third elastic member, so as to move from the inner side of the large latch trigger plate to its outer side.

[0030] Optionally, the linkage plate is provided with a limiting part, and the linkage trigger is adapted to abut against the limiting part so that the trigger part is located at the large lock tongue trigger plate.

[0031] Optionally, a small latch trigger plate is provided on the side of the small latch near the linkage trigger, and the small latch trigger plate is provided with an abutment portion;

[0032] The linkage trigger protrudes to form an abutting adapter on one side. The abutting adapter is adapted to abut against the abutting adapter to push the linkage trigger to overcome the elastic force of the third elastic member and rotate around the linkage plate, so as to separate the linkage trigger from the large locking tongue.

[0033] Optionally, it also includes a small latch fixing plate, which is fixedly connected to the housing, and has a through hole suitable for the small latch to pass through, and the second elastic member is disposed between the small latch fixing plate and the end of the small latch.

[0034] Optionally, it also includes a large latch fixing plate, which is fixedly connected to the housing, and has a through hole suitable for the large latch to pass through, and the first elastic element is disposed between the large latch fixing plate and the end of the large latch.

[0035] Optionally, the handle drive assembly includes:

[0036] A square steel connecting seat is connected to the housing and is adapted to connect a handle to control the extension and retraction of the locking tongue;

[0037] The first motor paddle is sleeved on the square steel connecting seat and moves synchronously with the square steel connecting seat. The first motor paddle is provided with a paddle block.

[0038] The second motor paddle is movably connected to the housing and disposed on one side of the drive motor. The second motor paddle includes a first paddle and a second paddle. The first paddle abuts against the paddle block, and the second paddle abuts against the drive motor.

[0039] The square steel connecting seat is configured to rotate in the unlocking or locking direction under the action of the handle, and the first shift foot is pushed by the shift block to drive the second shift foot to rotate relative to the housing, so as to drive the drive motor to move until it is separated from the gear set.

[0040] Optionally, the toggle block includes a first toggle block and a second toggle block;

[0041] The square steel connecting seat is configured such that when the handle rotates along the unlocking direction, the first lever pushes the first lever foot to cause the second lever foot to rotate relative to the housing.

[0042] The square steel connecting seat is configured such that when the handle rotates along the locking direction, the second lever pushes the first lever to cause the second lever to rotate relative to the housing.

[0043] Optionally, it also includes a latching lever, which is sleeved on the square steel connecting seat, and the latching lever is provided with a third lever block adapted to be slidably disposed in the latching groove;

[0044] When the square steel connecting seat rotates in the unlocking direction, the lock tongue lever is driven by the square steel connecting seat to move the third lever block towards the inside of the housing, thereby causing the lock tongue to retract into the housing.

[0045] Optionally, the handle drive assembly further includes:

[0046] The handle lever is sleeved on the square steel connecting seat and moves synchronously with the square steel connecting seat;

[0047] A rocker arm is hinged to the housing. One end of the rocker arm abuts against the handle lever, and the other end of the rocker arm abuts against the fourth lever on the latch lever.

[0048] When the square steel connecting seat rotates in the unlocking direction, the handle lever is driven by the square steel connecting seat to push the rocker arm to rotate, and the third lever is driven by the fourth lever and the lock tongue lever to move towards the inside of the housing, so as to drive the lock tongue to retract into the housing;

[0049] When the square steel connecting seat rotates in the locking direction to push the lock tongue out of the housing, the lock tongue lever is driven by the tongue to reset, and the lock tongue lever drives the rocker arm and the handle lever to reset via the fourth lever block.

[0050] Optionally, the motor drive assembly includes:

[0051] The drive motor is connected to the housing;

[0052] A gearbox contains a drive gear and an actuating gear, the actuating gear being connected to the drive gear; the drive gear is connected to the output end of the drive motor to drive the drive gear and the actuating gear to rotate synchronously.

[0053] A latching lever is movably connected to the housing and is connected to the latch. The latching lever has several transmission teeth, which are connected to the actuating gear to drive the latching lever to move and control the extension and retraction of the latch.

[0054] Optionally, the latch lever is provided with a third lever, and the latch is provided with a sliding groove. The third lever is disposed in the sliding groove to drive the latch to extend or retract.

[0055] Optionally, the latch lever is hinged to the housing, and the latch lever is driven by the drive motor to rotate relative to the housing, so that the third lever slides in the groove to drive the latch to extend or retract.

[0056] Optionally, the gearbox is further provided with a first transmission gear and a second transmission gear, the second transmission gear is located on one side of the drive gear and is fixedly connected to the drive gear, and the first transmission gear is located between the second transmission gear and the actuating gear;

[0057] The gearbox is also provided with a third transmission gear, which is coaxially arranged with the actuating gear and the two are fixed together. The third transmission gear meshes with the transmission teeth on the locking tongue pawl.

[0058] The diameter of the third transmission gear is smaller than the diameter of the actuating gear.

[0059] Optionally, the lock cylinder drive assembly includes:

[0060] A lock cylinder is provided therein, which is adapted to insert a key to control the extension and retraction of the bolt; the lock cylinder is provided with a lock cylinder lever, which is driven to rotate by the key;

[0061] A lever assembly includes a latch lever, which is movably connected to the housing, and the latch lever is connected to the latch.

[0062] The lock cylinder unlocking lever is movably connected to the housing, and the lock cylinder unlocking lever includes an unlocking drive part, a first unlocking execution part, and a second unlocking execution part;

[0063] The lock cylinder locking lever is movably connected to the housing, and the lock cylinder locking lever includes a locking drive part, a first locking execution part, and a second locking execution part;

[0064] When the lock cylinder lever is driven by the key to rotate in the unlocking direction, the unlocking drive part abuts against the lock cylinder lever to drive the lock cylinder unlocking paddle to rotate; the first unlocking execution part abuts against the bolt paddle to drive the bolt paddle to rotate in the first direction to drive the bolt to unlock; the second unlocking execution part abuts against the drive motor to drive the drive motor to separate from the gear set.

[0065] When the lock cylinder lever is driven by the key to rotate in the locking direction, the locking drive part abuts against the lock cylinder lever to drive the lock cylinder locking plate to rotate; the first locking execution part abuts against the bolt plate to drive the bolt plate to rotate in the opposite direction in the first direction to drive the bolt to lock; the second locking execution part abuts against the drive motor to drive the drive motor to separate from the gear set before the bolt locks.

[0066] Optionally, the lock cylinder drive assembly further includes:

[0067] The lock cylinder upper locking clutch plate is movably connected to the housing, and the lock cylinder upper locking clutch plate is adapted to abut against the drive motor;

[0068] When the lock cylinder lever is driven by the key to rotate in the locking direction, the second locking actuator abuts against the locking clutch plate to drive it to rotate, so that the lock cylinder locking clutch plate abuts against the drive motor, thereby driving the drive motor to separate from the gear set before the lock tongue is locked.

[0069] Optionally, the latch lever is provided with a third lever and a back lever, the latch is provided with a groove, and the third lever is disposed in the groove to drive the latch to move;

[0070] When the lock cylinder lever is driven by the key to rotate in the locking direction, the first locking actuator abuts against the back lever to drive the bolt lever to rotate in the opposite direction in the first direction, thereby driving the bolt to lock.

[0071] Optionally, the paddle assembly also includes a handle paddle, which is fixedly connected to the latch paddle;

[0072] When the lock cylinder lever is driven by the key to rotate in the unlocking direction, the first unlocking actuator abuts against the handle lever to drive the bolt lever to rotate in the first direction, thereby driving the bolt to unlock.

[0073] Optionally, a reset member is provided between the drive motor and the housing. After the lock cylinder lever is reset, the reset member drives the drive motor and the lock cylinder unlocking lever to reset.

[0074] When the lock cylinder lever is driven by the key to rotate in the locking direction, the lock tongue locks, thereby causing the lever assembly to reset.

[0075] This invention provides a smart lock with the following advantages:

[0076] 1. This invention provides an intelligent lock, comprising a housing, a bolt assembly, a handle drive assembly, a motor drive assembly, and a lock cylinder drive assembly. The bolt assembly includes a bolt movably disposed within the housing. The handle drive assembly is connected to the bolt to drive the bolt to extend or retract into the housing. The motor drive assembly is connected to the bolt to drive the bolt to extend or retract into the housing. The lock cylinder drive assembly is connected to the bolt to drive the bolt to extend or retract into the housing. The handle drive assembly, the motor drive assembly, and the lock cylinder drive assembly are all independent of each other, allowing each to independently drive the bolt to extend or retract into the housing.

[0077] This smart lock features a handle drive assembly, a motor drive assembly, and a lock cylinder drive assembly, all connected to the bolt. These three assemblies operate independently, allowing each to independently drive the bolt to extend or retract into the housing. This provides multiple bolt-driving methods, ensuring that if one unlocking method fails, other methods can be used to unlock the lock, guaranteeing its normal operation.

[0078] 2. This invention provides a smart lock. When the door is closed, the bolt fixing plate is configured to extend out of the lock body housing under external force, causing the linkage trigger to separate from the large bolt. The large bolt extends out of the lock body housing under the action of the first elastic member. The small bolt is pressed within the lock body housing by the door frame. When the door is open, the small bolt moves outward from the lock body housing under the action of the second elastic member, causing it to abut against the linkage trigger, thereby driving the linkage trigger to separate from the large bolt. The large latch extends out of the lock body housing under the action of the first elastic element. By setting a small latch, when the door is closed, the small latch is squeezed into the lock body housing by the door frame. The state of the small latch can be detected by the detection component inside the lock body housing to determine whether the door is closed. Since a second elastic element is set between the small latch and the small latch fixing plate, even when the door gap is large, the small latch will still be squeezed into the lock body housing by the door frame when the door is closed. The state of the door can be accurately determined by detecting the state of the small latch.

[0079] 3. This invention provides a smart lock. By setting a first motor lever and a second motor lever, when the square steel connecting seat rotates in the unlocking or locking direction driven by the handle, the first motor lever moves synchronously with the square steel connecting seat. The lever on the first motor lever pushes the first lever foot, causing the second lever foot to rotate relative to the housing. Since the second lever foot abuts against the drive motor, it can further push the drive motor to move until it disengages from the gear set. This avoids the need to overcome the motor's own resistance to complete the unlocking action when driven by the handle, which results in a large force required to unlock and negatively impacts the user experience.

[0080] 4. This invention provides a smart lock, which, by setting a paddle assembly, a lock cylinder unlocking paddle, and a lock cylinder locking paddle, ensures that when the lock cylinder paddle is rotated in the unlocking direction by the key, the step of separating the drive motor from the gear set is as follows: the unlocking drive unit abuts against the lock cylinder paddle to drive the lock cylinder unlocking paddle to rotate; the first unlocking execution unit abuts against the bolt paddle to drive the bolt paddle to rotate in a first direction, thereby driving the bolt to unlock; the second unlocking execution unit abuts against the drive motor to drive the drive motor to separate from the gear set.

[0081] When the lock cylinder lever is driven by the key to rotate in the locking direction, the step of separating the drive motor from the gear set is as follows: the locking drive part abuts against the lock cylinder lever to drive the lock cylinder locking lever to rotate; the first locking execution part abuts against the bolt lever to drive the bolt lever to rotate in the opposite direction in the first direction to drive the bolt to lock; the second locking execution part abuts against the drive motor to drive the drive motor to separate from the gear set before the bolt locks.

[0082] In summary, it enables the unlocking action to be completed without overcoming the resistance of the motor itself when the key is used to drive the lock.

[0083] 5. This invention provides an intelligent lock in which a drive motor is started during the locking process. The drive motor drives the lock tongue lever relative to the housing through the drive gear and the execution gear inside the gearbox, thereby driving the lock tongue lever to move and control the extension and retraction of the lock tongue. This provides a motor drive device with high transmission accuracy, good transmission stability and compact structure. Attached Figure Description

[0084] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0085] Figure 1 This is a schematic view of the structure of a smart lock provided in an embodiment of the present invention;

[0086] Figure 2 This is an exploded view of the bolt assembly in a smart lock provided in an embodiment of the present invention;

[0087] Figure 3 This is a schematic diagram of the structure of the smart lock with the bolt assembly located outside the housing, as provided in an embodiment of the present invention.

[0088] Figure 4 for Figure 3 A schematic diagram of the rear structure of the center locking tongue assembly;

[0089] Figure 5 This is a schematic diagram of the structure of the smart lock with the bolt assembly inside the housing provided in an embodiment of the present invention;

[0090] Figure 6 This is a schematic diagram of the structure of the smart lock with the bolt assembly completely inside the housing, as provided in an embodiment of the present invention;

[0091] Figure 7 This is a schematic diagram of the structure of the small bolt in the bolt assembly of the smart lock provided in an embodiment of the present invention, when it extends into the housing after losing contact with the door frame;

[0092] Figure 8 This is a schematic diagram of the structure of the large bolt in the bolt assembly of the smart lock provided in an embodiment of the present invention when it extends into the housing;

[0093] Figure 9 This is a schematic diagram of the structure of the smart lock with the bolt assembly fully extended inside the housing in an embodiment of the present invention;

[0094] Figure 10 This is a schematic view of the structure of the smart lock provided in an embodiment of the present invention, showing the handle driving component driving the bolt to be in the locked state;

[0095] Figure 11 This is a schematic structural view of the smart lock provided in an embodiment of the present invention, showing the handle driving component driving the bolt in the unlocking process.

[0096] Figure 12 This is a schematic structural view of the smart lock provided in an embodiment of the present invention, showing the handle driving component driving the bolt in the unlocking state.

[0097] Figure 13 This is a schematic view of the structure of the smart lock provided in an embodiment of the present invention, showing the handle driving component driving the bolt in the unlocked state and the handle returning to the center position.

[0098] Figure 14 This is a schematic structural view of the smart lock provided in an embodiment of the present invention, showing the handle driving component driving the bolt in the locking process.

[0099] Figure 15 This is a schematic diagram of the specific structure of the handle drive component in the smart lock provided in an embodiment of the present invention;

[0100] Figure 16 for Figure 15 Schematic diagram of the rear structure of the middle section;

[0101] Figure 17 for Figure 15 Exploded view of the middle structure;

[0102] Figure 18 This is a schematic view of the structure of the smart lock provided in an embodiment of the present invention, showing the key driving component driving the bolt to be in the locked state;

[0103] Figure 19 This is a schematic structural view of the key driving component driving the lock tongue in the unlocking process state in an embodiment of the present invention;

[0104] Figure 20 This is a schematic structural view of the key driving component in the smart lock provided in an embodiment of the present invention, showing the key driving component driving the bolt in the unlocking state.

[0105] Figure 21 This is a schematic view of the structure of the smart lock provided in an embodiment of the present invention, showing the key driving component driving the bolt to the unlocked state and the lock cylinder unlocking lever returning to the center position.

[0106] Figure 22 This is a schematic structural view of the key driving component driving the lock tongue in the locking process state in an embodiment of the present invention;

[0107] Figure 23 This is a schematic view of the key driving component driving the lock tongue in the smart lock after locking, as provided in an embodiment of the present invention.

[0108] Figure 24 This is a schematic diagram of the specific structure of the key drive component in the smart lock provided in an embodiment of the present invention;

[0109] Figure 25 for Figure 24 Schematic diagram of the rear structure of the middle section;

[0110] Figure 26 This is a schematic structural view of the smart lock provided in an embodiment of the present invention, showing the motor drive assembly driving the bolt to be in the locked state.

[0111] Figure 27This is a schematic structural view of the smart lock provided in an embodiment of the present invention, showing the motor drive assembly driving the bolt in the unlocking process.

[0112] Figure 28 This is a schematic structural view of the smart lock provided in an embodiment of the present invention, showing the motor drive assembly driving the bolt in the unlocking state.

[0113] Figure 29 This is a schematic structural view of the motor drive device in the motor drive assembly of the smart lock provided in an embodiment of the present invention;

[0114] Figure 30 This is a schematic structural view of the gearbox in the motor drive assembly of the smart lock provided in an embodiment of the present invention;

[0115] Figure 31 This is an exploded view of the gearbox in the motor drive assembly of the smart lock provided in an embodiment of the present invention;

[0116] Explanation of reference numerals in the attached figures:

[0117] 1-Shell;

[0118] 2-Lock bolt assembly; 22-Lock bolt fixing plate; 23-Linkage trigger; 231-Trigger part; 241-Large lock bolt; 242-First elastic element; 243-Large lock bolt trigger plate; 251-Small lock bolt; 252-Second elastic element; 253-Small lock bolt trigger plate; 26-Linkage plate; 261-Limiting part; 27-Third elastic element; 28-Small lock bolt fixing plate; 29-Large lock bolt fixing plate;

[0119] 3-Handle drive assembly; 32-Drive motor; 33-Lock tongue; 34-Square steel connecting seat; 35-First motor lever; 351-First lever block; 352-Second lever block; 36-Second motor lever; 361-First lever foot; 362-Second lever foot; 37-Lock tongue lever; 371-Third lever block; 372-Fourth lever block; 38-First handle lever; 39-Rocker lever;

[0120] 4-Lock cylinder drive assembly; 44-Lock cylinder; 441-Lock cylinder lever; 45-Lever assembly; 4512-Back lever; 452-Second handle lever; 46-Lock cylinder unlocking lever; 461-Unlocking drive unit; 462-First unlocking actuator; 463-Second unlocking actuator; 47-Lock cylinder locking lever; 471-Locking drive unit; 472-First locking actuator; 473-Second locking actuator; 48-Lock cylinder locking clutch plate;

[0121] 5-Motor drive assembly; 54-Gearbox; 541-Drive gear; 542-Actuating gear; 543-First transmission gear; 544-Second transmission gear; 545-Third transmission gear. Detailed Implementation

[0122] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0123] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

[0124] Example

[0125] This embodiment provides a smart lock, including a bolt assembly 2, a handle drive assembly 3, a motor drive assembly 5, and a lock cylinder drive assembly 4. The handle drive assembly 3, the motor drive assembly 5, and the lock cylinder drive assembly 4 are all connected to the bolt 33, and the handle drive assembly 3, the motor drive assembly 5, and the lock cylinder drive assembly 4 are all independent of each other, so that the three can independently drive the bolt 33 to extend or retract into the housing 1.

[0126] Specifically, such as Figures 1 to 9 As shown, the latch 33 structure includes a latch fixing plate 22, a linkage triggering member 23, a large latch 241, a first elastic member 242, a large latch triggering plate 243, a small latch 251, a second elastic member 252, a small latch triggering plate 253, a linkage plate 26, a limiting part 261, a third elastic member 27, a small latch fixing plate 28, and a large latch fixing plate 29.

[0127] In this embodiment, as Figure 1 As shown, the upper side of the housing 1 is provided with slots for placing the latch fixing plate 22, the large latch 241 and the small latch 251 respectively. The latch fixing plate 22 can be extended or retracted into the housing 1 by a handle, a key or a motor.

[0128] In this embodiment, as Figures 1 to 9As shown, the lower end of the latch fixing plate 22 is fixedly connected to the linkage plate 26. The linkage plate 26 is U-shaped, and its left arm is fixed to the lower end of the latch fixing plate 22 by screws. The right arm of the linkage plate 26 is connected to the linkage trigger 23. The linkage trigger 23 is hinged to the right arm of the linkage plate 26 so that the linkage trigger 23 can rotate relative to the right arm of the linkage plate 26.

[0129] In this embodiment, as Figures 1 to 9 As shown, the large latch 241 is located on one side of the latch fixing plate 22, and is connected to the housing 1 via the large latch fixing plate 29. Specifically, as... Figure 2 As shown, the large latch fixing plate 29 is L-shaped, with one side fixedly connected to the housing 1 so that the other side is perpendicular to the housing 1. A through hole for the large latch 241 is provided on the side perpendicular to the housing 1. The bottom of the large latch 241 passes through the large latch fixing plate 29 and is fixedly connected to the large latch trigger plate 243. One function of the large latch trigger plate 243 is to abut against the large latch fixing plate 29 to prevent the large latch 241 from detaching from the large latch fixing plate 29. A first elastic element 242, which is a columnar spring, is provided between the large latch 241 and the housing 1. The first elastic element 242 provides elastic force to the large latch 241, allowing the large latch 241 to extend out of the housing 1 under the elastic force of the first elastic element 242.

[0130] In this embodiment, as Figures 1 to 9 As shown, the linkage trigger 23 is disposed between the large bolt 241 and the bolt fixing plate 22, and the linkage trigger 23 protrudes to form a trigger part 231 on the side near the large bolt 241. Correspondingly, the large bolt trigger plate 243 protrudes in a plate-like structure towards the linkage trigger 23 on the side near the linkage trigger 23. Figures 3 to 9 As shown, for ease of explanation, line a is set as the edge where the slot is opened in the housing 1. When both the latch fixing plate 22 and the large latch 241 extend out of the housing 1, the trigger part 231 of the linkage trigger 23 is located outside the plate-like structure on the large latch trigger plate 243, and the trigger part 231 of the linkage trigger 23 is separated from the plate-like structure on the large latch trigger plate 243.

[0131] When the door is closed, the latch fixing plate 22 is moved into the housing 1 by external force such as a handle, key, or motor. The latch fixing plate 22, through the linkage plate 26, drives the linkage trigger 23 to move into the housing 1 together. During this process, the trigger part 231 on the linkage trigger 23 abuts against the plate-like structure on the large latch trigger plate 243, thereby driving the large latch 241 to overcome the elastic force of the first elastic member 242 and move into the housing 1 together, completing the retraction of the latch fixing plate 22 and the large latch 241 into the housing 1. Specifically… Figure 3 , Figure 5 and Figure 6 As shown, Figure 3 This is the state when the latch fixing plate 22 and the large latch 241 extend out of the housing 1; Figure 5 When the latch fixing plate 22 and the large latch 241 are partially retracted into the housing 1, the trigger part 231 on the linkage trigger 23 will abut against the plate-like structure on the large latch trigger plate 243. Figure 6 This refers to the state when the latch fixing plate 22 and the large latch 241 are fully retracted into the housing 1.

[0132] In this embodiment, the small latch 251 is located between the large latch 241 and the latch fixing plate 22, and is connected to the housing 1 via the small latch fixing plate 28. Specifically, as shown... Figure 2 As shown, the small latch fixing plate 28 is also L-shaped, with one side fixedly connected to the housing 1 so that its other side is perpendicular to the housing 1. A through hole for the small latch 251 is provided on the side perpendicular to the housing 1. The bottom of the small latch 251 passes through the small latch fixing plate 28 and is fixedly connected to the small latch trigger plate 253. One function of the small latch trigger plate 253 is to abut against the small latch fixing plate 28 to prevent the small latch 251 from detaching from it. A second elastic element 252 is provided between the small latch 251 and the housing 1. The second elastic element 252 is also a columnar spring. The second elastic element 252 provides elastic force to the small latch 251, allowing it to extend out of the housing 1 under the elastic force of the second elastic element 252.

[0133] After the latch fixing plate 22 and the large latch 241 are fully retracted into the housing 1, the door is in the closed state. Since the door is inside the door frame, therefore... Figure 6 As shown, the small latch 251 is squeezed by the door frame and is inside the housing 1. At this time, in order to lock the door leaf and the door frame, the latch fixing plate 22 extends out of the housing 1 under the action of external forces such as handle, key or motor, and drives the linkage trigger 23 to separate from the large latch trigger plate 243. The large latch 241 extends out of the housing 1 under the action of the first elastic member 242, thereby completing the locking of the door.

[0134] When the door is opened, the latch fixing plate 22 is moved into the housing 1 by external force such as a handle, key or motor. The latch fixing plate 22 drives the linkage trigger 23 to move into the housing 1 together through the linkage plate 26. During this process, the trigger part 231 on the linkage trigger 23 will abut against the plate-like structure on the large latch trigger plate 243, thereby driving the large latch 241 to overcome the elastic force of the first elastic member 242 and move into the housing 1 together, completing the retraction of the latch fixing plate 22 and the large latch 241 into the housing 1. This process is the same as the operation of the latch fixing plate 22 and the large latch 241 retracting into the housing 1 during the closing process of the door.

[0135] In this embodiment, as Figures 1 to 9As shown, the upper end of the linkage trigger 23 protrudes towards the latch fixing plate 22, so that the linkage trigger 23 is in an inverted L shape. Figure 2 As shown, the small latch trigger plate 253 protrudes into a plate-like structure on the side near the latch fixing plate 22. This plate-like structure is used to abut against the protruding part on the linkage trigger member 23, and this plate-like structure is located below the protruding part on the linkage trigger member 23. In order to make this plate-like structure abut against the protruding part on the linkage trigger member 23, the inner side of this plate-like structure is bent towards the protruding part on the linkage trigger member 23.

[0136] In this embodiment, as Figures 1 to 9 As shown, a third elastic element 27 is provided between the linkage trigger 23 and the locking tongue fixing plate 22. Specifically, Figure 2 In the middle, the third elastic member 27 has an elastic force that pulls the linkage trigger member 23 to rotate counterclockwise relative to the linkage plate 26, so that the trigger part 231 can be located at the plate-shaped structure on the large lock tongue trigger plate 243. In order to avoid the linkage trigger member 23 from rotating excessively, a limiting part 261 is provided on the linkage plate 26. The limiting part 261 is a protrusion provided on the surface of the linkage plate 26. The limiting part 261 is used to abut against the lower end of the linkage trigger member 23, so that the linkage trigger member 23 can be flush with the linkage plate 26 under the action of the elastic force of the third elastic member 27.

[0137] When the door is open, such as Figure 7 As shown, as the door opens and separates from the door frame, the small latch 251 loses contact with the door frame and moves outwards from the housing 1 under the action of the second elastic element 252. During this process, the small latch trigger plate 253 abuts against the linkage trigger 23, which in turn drives the linkage trigger 23 to rotate clockwise relative to the linkage plate 26, causing the trigger part 231 on the linkage trigger 23 to separate from the large latch trigger plate 243. Since the large latch trigger plate 243 is no longer restrained by the linkage trigger 23, as... Figures 7 to 8 As shown in the process, the large latch 241 will extend out of the housing 1 under the action of the first elastic element 242, and then the latch fixing plate 22 can be extended out of the housing 1 by a handle, key or motor drive (e.g. Figure 9 As shown in the figure, when the linkage trigger 23 moves to the outside of the housing 1, after the linkage trigger 23 separates from the small lock tongue trigger plate 253, the linkage trigger 23 is reset under the action of the third elastic member 27. Therefore, during the process of the linkage trigger 23 moving to the outside of the housing 1, the trigger part 231 will slide against the large lock tongue trigger plate 243, and then the large lock tongue trigger plate 243 will push the linkage trigger 23 to overcome the elastic force of the third elastic member 27 and rotate around the linkage plate 26, so that the trigger part 231 enters the outside of the large lock tongue trigger plate 243 from the inside.

[0138] To facilitate the movement of the trigger part 231 to the outside of the large latch trigger plate 243, the inner side of the large latch trigger plate 243 is sloping. The trigger part 231 is a roller, preferably a bearing. The trigger part 231 rolls over the side of the large latch trigger plate 243 on the sloping inner side and enters the outside of the large latch trigger plate 243.

[0139] In this embodiment, by setting a small latch 251, when the door is closed, the small latch 251 is pressed into the housing 1 by the door frame. The state of the small latch 251 can then be detected by a detection component inside the housing 1 to determine if the door is closed. Since a second elastic element 252 is provided between the small latch 251 and the small latch fixing plate 28, even with a large door gap, the small latch 251 will still be pressed into the housing 1 by the door frame when the door is closed. The state of the door can be accurately determined by detecting the state of the small latch 251. Furthermore, when the door is open, the small latch 251 unlocks the large latch 241, allowing the large latch 241 to be released from the restraint of the linkage trigger 23 and extend out of the housing 1 under the action of the first elastic element 242, which can further assist in determining the state of the door.

[0140] The locking tongue assembly provided in this embodiment operates as follows:

[0141] During the closing process, the latch fixing plate 22 is driven to move into the housing 1 by external force such as handle, key or motor. The latch fixing plate 22 drives the linkage trigger 23 to move into the housing 1 together through the linkage plate 26. The trigger part 231 on the linkage trigger 23 will abut against the plate structure on the large latch trigger plate 243, thereby driving the large latch 241 to overcome the elastic force of the first elastic member 242 and move into the housing 1 together, completing the retraction of the latch fixing plate 22 and the large latch 241 into the housing 1.

[0142] After the latch fixing plate 22 and the large latch 241 are fully retracted into the housing 1, the door is in the closed state. Since the door is inside the door frame, the small latch 251 is squeezed by the door frame and is inside the housing 1. At this time, in order to lock the door and the door frame, the latch fixing plate 22 extends out of the housing 1 under the action of external forces such as handle, key or motor, and drives the linkage trigger 23 to separate from the large latch trigger plate 243. The large latch 241 extends out of the housing 1 under the action of the first elastic member 242, thereby completing the locking of the door.

[0143] During the opening of the door, the latch fixing plate 22 is driven to move into the housing 1 by external force such as a handle, key or motor. The latch fixing plate 22 drives the linkage trigger 23 to move into the housing 1 together through the linkage plate 26. During this process, the trigger part 231 on the linkage trigger 23 will abut against the plate-like structure on the large latch trigger plate 243, thereby driving the large latch 241 to overcome the elastic force of the first elastic member 242 and move into the housing 1 together, completing the retraction of the latch fixing plate 22 and the large latch 241 into the housing 1.

[0144] When the door is open, the small latch 251 loses contact with the door frame and moves outward from the housing 1 under the action of the second elastic member 252. During this process, the small latch trigger plate 253 will abut against the linkage trigger member 23, which will drive the linkage trigger member 23 to rotate clockwise relative to the linkage plate 26, so that the trigger part 231 on the linkage trigger member 23 separates from the large latch trigger plate 243. Since the large latch trigger plate 243 is no longer restrained by the linkage trigger member 23, the large latch 241 will extend out of the housing 1 under the action of the first elastic member 242, and then the latch fixing plate 22 can be extended out of the housing 1 by the handle, key or motor.

[0145] In this embodiment, as Figures 10 to 17 As shown, the handle drive assembly 3 includes a square steel connecting seat 34, a first motor lever 35, a second motor lever 36, a locking tongue lever 37, a first handle lever 38, and a rocker arm 39.

[0146] The drive motor 32 drives the locking tongue 33 to extend and retract via a gear set. The square steel connecting seat 34 is used to connect a handle to control the extension and retraction of the locking tongue 33. The structures of these two components adopt existing technology and are not the subject of this invention. Their working principle will not be described in detail here.

[0147] In this embodiment, the drive motor 32 is hinged to the housing 1, and a torsion spring or other reset element can be provided between the drive motor 32 and the housing 1 so that the drive motor 32 can always be in a state where it is not subjected to external force. Figure 10 Position, in which the drive motor 32 meshes with the gear set on its right.

[0148] In this embodiment, the upper side of the housing 1 is provided with a through hole for placing the latch 33, and the lower part of the latch 33 is provided with a groove. During installation, the third lever 371 on the latch lever 37 is slidably disposed inside the groove so that the latch lever 37 can drive the latch 33 into the housing 1, and at the same time the latch 33 can also move upward to drive the latch lever 37 to reset.

[0149] In this embodiment, the square steel connecting seat 34 is movably connected to the housing 1, so that the square steel connecting seat 34 can rotate under the drive of the handle.

[0150] In some alternative implementations, such as Figures 15 to 17 As shown, a first motor lever 35, a locking tongue lever 37, and a first handle lever 38 are sequentially mounted on the square steel connecting seat 34 from top to bottom. The locking tongue lever 37 has a circular through hole where it fits into the square steel connecting seat 34, allowing it to rotate independently. The first handle lever 38 and the first motor lever 35 have square through holes where they fit into the square steel connecting seat 34, allowing them to move synchronously with the square steel connecting seat 34. In other embodiments, the locking tongue lever 37 can also have other types of through holes, as long as it allows the locking tongue lever 37 to move independently.

[0151] In this embodiment, the second motor paddle 36 is movably connected to the housing 1 and is located on one side of the drive motor 32. The first motor paddle 35 is provided with a paddle block, and the second motor paddle 36 includes a first paddle foot 361 and a second paddle foot 362. The first paddle foot 361 abuts against the paddle block, and the second paddle foot 362 abuts against the drive motor 32. In use, the first motor paddle 35 can be rotated, which in turn moves the first paddle foot 361 through the paddle block, causing the second motor paddle 36 to rotate. This causes the second paddle foot 362 to rotate together with the first paddle foot 361, thereby enabling the drive motor 32 to rotate relative to the housing 1 through the second paddle foot 362 until the drive motor 32 disengages from the gear set.

[0152] In the above embodiments, such as Figures 15 to 17 As shown, the lever includes a first lever 351 and a second lever 352. When the square steel connecting seat 34 returns to its original position, both the first lever 351 and the second lever 352 abut against the first lever foot 361. In some alternative embodiments, the side of the first lever foot 361 that contacts the first lever 351 and the second lever 352 is arc-shaped, and the first lever 351 and the second lever 352 slide on the arc-shaped surface to drive the second motor lever 36 to rotate relative to the housing 1.

[0153] like Figures 10 to 12 As shown, during use, the handle is used to move the square steel connecting seat 34 in the unlocking direction ( Figure 10 When the motor rotates clockwise, the first motor lever 35 moves synchronously with the square steel connecting seat 34, thus the first motor lever 35 also rotates in the unlocking direction. This process is... Figure 11 As shown, as Figure 11 As shown, during the rotation of the first motor paddle 35 in the unlocking direction, the first paddle block 351 slides upward along the upper arc surface of the first paddle foot 361, thereby pressing the left end of the second motor paddle 36. It can be understood that since the right end of the second motor paddle 36 is hinged to the housing 1, when the first paddle foot 361 at the left end of the second motor paddle 36 is pressed, the second paddle foot 362 at the left end of the second motor paddle 36 will move in the opposite direction in the unlocking direction. Figure 10The gear rotates counterclockwise, which in turn pushes the drive motor 32 downward through the second shifter 362, causing the drive motor 32 to rotate clockwise relative to the housing 1 until the drive motor 32 separates from the gear set. Figure 12 (As shown).

[0154] In this embodiment, as Figure 16 As shown, the first handle lever 38 is sleeved on the square steel connecting seat 34 and moves synchronously with the square steel connecting seat 34. The rocker arm 39 is hinged to the housing 1. The left end of the rocker arm 39 abuts against the first handle lever 38, and the other end of the rocker arm 39 abuts against the fourth lever 372 on the lock tongue lever 37. Along the unlocking direction of the square steel connecting seat 34 (… Figure 16 When rotated counterclockwise, the first handle lever 38 is driven by the square steel connecting seat 34 to push the rocker arm 39 to rotate clockwise. The right end of the rocker arm 39 will push the fourth lever 372 downward, which in turn pushes the latch lever 37 to rotate clockwise relative to the square steel connecting seat 34. Figure 15 In the middle, the third lever 371 moves along the locking tongue lever 37. Figure 15 Rotating counterclockwise causes the third lever 371 to move downwards, thereby driving the latch 33 to move downwards into the housing 1 through the groove below the latch 33, thus unlocking the lock.

[0155] In some alternative implementations, such as Figure 16 As shown, the rocker arm 39 and the first handle lever 38 are both bent at their contact points to interlock. The third lever 371 and the fourth lever 372 are located on opposite sides of the latch lever 37, and the third lever 371 and the fourth lever 372 can rotate relative to the latch lever 37 body.

[0156] Figure 13 This is a schematic view of the smart lock when the handle is in the unlocked state and the handle is returned to center. When the handle returns to center, it drives the square steel connecting seat 34 to return to center simultaneously, which in turn drives the first motor lever 35 and the first handle lever 38 to return to center simultaneously. Because the rocker arm 39 and the first handle lever 38... Figure 13 As shown, when the first lever 38 returns to center ( Figure 16 (When rotated clockwise), the first lever 38 separates from the rocker arm 39, while the rocker arm 39 and the latch lever 37 remain in position. Figure 12 Medium state.

[0157] Figure 14 This is a schematic view of the smart lock in the locking process; for example... Figure 14 As shown, the square steel connecting seat 34 is configured to rotate in the locking direction under the action of the handle. Figure 14The first motor lever 35 rotates counterclockwise to rotate in the same direction, and then the right end of the first motor lever 35 abuts against the lower side of the latch 33 to push the latch 33 upward until it extends out of the housing 1, thus completing the locking. At the same time, during the upward movement of the latch 33, the latch 33 drives the third lever 371 and the latch lever 37 upward through the groove on its lower side until they return to their original positions, and the latch lever 37 drives the rocker arm 39 and the first handle lever 38 to reset via the fourth lever 372.

[0158] Furthermore, such as Figure 14 As shown, in the first motor paddle 35 at Figure 14 When rotated counterclockwise, the second lever 352 slides downward along the upper arc surface of the first lever 361, thereby pressing the left end of the second motor lever 36. It can be understood that since the right end of the second motor lever 36 is hinged to the housing 1, when the first lever 361 at the left end of the second motor lever 36 is pressed, the second lever 362, which is also located at the left end of the second motor lever 36, will slide downward along... Figure 14 The drive motor 32 is rotated counterclockwise, which in turn pushes the drive motor 32 downward through the second shifter 362, causing the drive motor 32 to rotate clockwise relative to the housing 1 until the drive motor 32 separates from the gear set.

[0159] The handle-type smart door lock provided in this embodiment has the following unlocking steps:

[0160] like Figures 10 to 12 As shown, during use, the handle is used to move the square steel connecting seat 34 in the unlocking direction ( Figure 10 When the motor rotates clockwise, the first motor lever 35 moves synchronously with the square steel connecting seat 34, thus the first motor lever 35 also rotates in the unlocking direction. This process is... Figure 11 As shown, as Figure 11 As shown, during the rotation of the first motor paddle 35 in the unlocking direction, the first paddle block 351 slides upward along the upper arc surface of the first paddle foot 361, thereby pressing the left end of the second motor paddle 36. It can be understood that since the right end of the second motor paddle 36 is hinged to the housing 1, when the first paddle foot 361 at the left end of the second motor paddle 36 is pressed, the second paddle foot 362 at the left end of the second motor paddle 36 will move in the opposite direction in the unlocking direction. Figure 10 The gear rotates counterclockwise, which in turn pushes the drive motor 32 downward through the second shifter 362, causing the drive motor 32 to rotate clockwise relative to the housing 1 until the drive motor 32 separates from the gear set. Figure 12 As shown). Simultaneously, along the unlocking direction (as shown). Figure 16 When rotated counterclockwise, the first handle lever 38 is driven by the square steel connecting seat 34 to push the rocker arm 39 to rotate clockwise. The right end of the rocker arm 39 will push the fourth lever 372 downward, which in turn will push the latch lever 37 to rotate clockwise relative to the square steel connecting seat 34. Figure 15 In the middle, the third lever 371 moves along the locking tongue lever 37. Figure 15 Rotating counterclockwise causes the third lever 371 to move downwards, thereby moving the bolt 33 into the lock body through the groove below the bolt 33, thus unlocking the lock.

[0161] The locking steps are as follows: Figure 14 As shown, the square steel connecting seat 34 is configured to rotate in the locking direction under the action of the handle. Figure 14 The first motor lever 35 rotates counterclockwise (to drive the first motor lever 35 to rotate in the same direction), and then the right end of the first motor lever 35 abuts against the lower side of the latch 33 to push the latch 33 upward until it extends out of the housing 1, thus completing the locking. Simultaneously, during the upward movement of the latch 33, the latch 33 drives the third lever 371 and the latch lever 37 upward through the groove on its lower side until they return to their original positions. Furthermore, the latch lever 37, via the fourth lever 372, drives the rocker arm 39 and the first handle lever 38 to reset. Further, the first motor lever 35... Figure 14 When rotated counterclockwise, the second lever 352 slides downward along the upper arc surface of the first lever 361, thereby pressing the left end of the second motor lever 36. It can be understood that since the right end of the second motor lever 36 is hinged to the housing 1, when the first lever 361 at the left end of the second motor lever 36 is pressed, the second lever 362, which is also located at the left end of the second motor lever 36, will slide downward along... Figure 14 The drive motor 32 is rotated counterclockwise, which in turn pushes the drive motor 32 downward through the second shifter 362, causing the drive motor 32 to rotate clockwise relative to the housing 1 until the drive motor 32 separates from the gear set.

[0162] In this embodiment, as Figures 18 to 25 As shown, the lock cylinder drive assembly 4 includes a lock cylinder 44, a paddle assembly 45, a lock cylinder unlocking paddle 46, a lock cylinder locking paddle 47, and a lock cylinder locking clutch 48. The drive motor 32 is adapted to drive the bolt 33 to extend and retract via a gear set. A key is inserted into the lock cylinder 44 to control the extension and retraction of the bolt 33. The paddle assembly 45 is sleeved on the square steel connecting seat 34 and can rotate relative to the square steel connecting seat 34. The drive motor 32 drives the bolt 33 to extend and retract via a gear set; its structure uses existing technology, so its working principle will not be described in detail here. The paddle assembly 45 is the bolt paddle 37 in the handle drive assembly.

[0163] In this embodiment, the drive motor 32 is hinged to the housing 1, and a torsion spring or other reset element can be provided between the drive motor 32 and the housing 1 so that the drive motor 32 can always be in a state where it is not subjected to external force. Figure 1 Position, in which the drive motor 32 meshes with the gear set on its right.

[0164] In this embodiment, the upper side of the housing 1 is provided with a through hole for placing the latch 33, and the lower part of the latch 33 is provided with a groove. During installation, the third lever 371 on the latch lever 37 is slidably disposed inside the groove so that the latch lever 37 can drive the latch 33 into the housing 1, and at the same time the latch 33 can also move upward to drive the latch lever 37 to reset.

[0165] In this embodiment, as Figure 24 and Figure 25 As shown, the lock cylinder 44 is equipped with a lock cylinder lever 441, which rotates under the drive of the key; the lock cylinder unlocking lever 46 is hinged to the housing 1. Figure 24 At point A, the lock cylinder unlocking lever 46 includes an unlocking drive unit 461, a first unlocking execution unit 462, and a second unlocking execution unit 463. The lever assembly 45 includes a latch lever 37 and a second handle lever 452, which are fixedly connected to the latch lever 37. Both the latch lever 37 and the second handle lever 452 have circular through holes for fitting onto the square steel connecting seat 34, and these circular through holes can rotate freely on the square steel connecting seat 34.

[0166] When the lock cylinder toggle 441 is driven by the key along the unlocking direction ( Figure 24 When rotated clockwise, the unlocking drive unit 461 abuts against the lock cylinder lever 441 to drive the lock cylinder unlocking lever 46 to rotate clockwise around point A. During the clockwise rotation of the lock cylinder unlocking lever 46 around point A, the first unlocking actuator 462 abuts against the protruding part on the left end of the second handle lever 452 to drive the second handle lever 452 along... Figure 24 Rotating counterclockwise in the middle, and then through the second handle lever 452, driving the latch lever 37 along the first direction ( Figure 24 The lock cylinder rotates counterclockwise (in the middle direction), thereby driving the bolt 33 to move down into the housing 1 through the third lever 371 to achieve unlocking; the second unlocking actuator 463 abuts against the drive motor 32, so during the clockwise rotation of the lock cylinder unlocking lever 46 around point A, the second unlocking actuator 463 pushes the drive motor 32 along... Figure 24 The lock tongue 33 is rotated clockwise to drive the drive motor 32 to separate from the gear set before the lock tongue 33 is unlocked.

[0167] Specifically, in this embodiment, in order to achieve the separation of the drive motor 32 from the gear set before the lock tongue 33 unlocks, when the lock cylinder unlocking lever 46 is in the initial position, the second unlocking execution part 463 abuts against the drive motor 32. There is a gap between the second unlocking execution part 463 and the second handle lever 452. Therefore, when the second unlocking execution part 463 abuts against the second handle lever 452, the second unlocking execution part 463 has already completed the process of separating the drive motor 32 from the gear set. Here, the initial position of the lock cylinder unlocking lever 46 refers to... Figure 24The position shown is the position when the lock cylinder unlocking lever 46 has not yet been pushed by the lock cylinder lever 441.

[0168] In this embodiment, the unlocking drive unit 461 has a slot with an opening on the left side for accommodating the lock cylinder lever 441, and the unlocking drive unit 461 is located above the lock cylinder lever 441, so that when the lock cylinder lever 441 moves along the unlocking direction ( Figure 24 When rotated clockwise, it can push the unlocking drive unit 461.

[0169] In some alternative embodiments, a roller is rotatably mounted on the inner side of the left end of the second handle lever 452, and the lock cylinder unlocking lever 46 is located inside the second handle lever 452. Therefore, when the lock cylinder unlocking lever 46 is... Figure 24 When rotated clockwise, the aforementioned roller can roll on the side wall of the first unlocking actuator 462.

[0170] In some alternative implementations, the second handle lever 452 may be omitted, and the first unlocking actuator 462 may directly abut against the locking tongue lever 37. Specifically, a protrusion may be provided on the locking tongue lever 37 to abut against an unlocking actuator.

[0171] In this embodiment, as Figure 25 As shown, the lock cylinder locking lever 47 is movably connected to the housing 1 at point B. The lock cylinder locking lever 47 includes a locking drive part 471, a first locking execution part 472 and a second locking execution part 473. The lock cylinder locking clutch 48 is movably connected to the housing 1 at point C, and the lock cylinder locking clutch 48 is used to abut against the drive motor 32.

[0172] Lock cylinder lever 441 is driven by the key along the locking direction ( Figure 25 When rotated clockwise, the locking drive unit 471 abuts against the lock cylinder lever 441 to drive the lock cylinder locking lever 47 along... Figure 25 Turn clockwise to engage the locking lever 47 on the lock cylinder. Figure 25 During clockwise rotation, the first locking actuator 472 abuts against the upper back paddle 4512 of the latch lever 37 to drive the latch lever 37 in the opposite direction (in the first direction). Figure 25 The lock cylinder rotates counterclockwise to drive the latch 33 to lock via the third lever 371 on the latch lever 37. Since the second locking actuator 473 abuts against the drive motor 32, the locking lever 47 moves along the lock cylinder. Figure 25 During the clockwise rotation, the second locking actuator 473 pushes the drive motor 32 to separate from the gear set.

[0173] In this embodiment, to enable the drive motor 32 to disengage from the gear set before the latch 33 locks, when the lock cylinder locking lever 47 is in its initial position, the second locking actuator 473 abuts against the lock cylinder locking clutch 48, and there is a gap between the first locking actuator 472 and the back lever 4512. Therefore, as soon as the lock cylinder locking lever 47 begins to rotate, the second locking actuator 473 starts to push the lock cylinder locking clutch 48, thereby pushing the drive motor 32 to disengage from the gear set. The gap between the first locking actuator 472 and the back lever 4512 ensures that the back lever 4512 is pushed only after the drive motor 32 has disengaged from the gear set, thus achieving locking. The initial position of the lock cylinder locking lever 47 refers to the position when the door lock is open and the lock cylinder locking lever 47 is not pushed by the lock cylinder lever 441.

[0174] In this embodiment, as Figure 25 As shown, the lock cylinder locking lever 47 has a slot with an opening on the right side for accommodating the lock cylinder lever 441, and the locking drive part 471 is located at the lower end of the lock cylinder lever 441, so that when the lock cylinder lever 441 moves along the locking direction ( Figure 25 When rotated clockwise, it can push the locking drive unit 471.

[0175] In some alternative embodiments, the lock cylinder locking clutch plate 48 is adapted to be sloped to one side of the second locking actuator 473, which is a roller rotatably connected to the lock cylinder locking lever 47 body; when the lock cylinder lever 441 is driven by the key to rotate in the locking direction, the roller rolls upward on the slope side of the lock cylinder locking clutch plate 48 to drive the lock cylinder locking clutch plate 48 to rotate.

[0176] In some alternative embodiments, the back lever 4512 is also a roller rotatably connected to the latch lever 37, and the first locking actuator 472 near the back lever 4512 is used to abut against this roller, in the locking cylinder lever 441 along the locking direction ( Figure 25 When rotated clockwise, the locking lever 47 is pushed around the lock cylinder. Figure 25 Rotating clockwise at point B causes the first locking actuator 472 to push the back lever 4512 upward, thus locking the device.

[0177] In some alternative implementations, such as Figure 25 As shown, the bottom left corner of the lock cylinder locking clutch plate 48 is set at an acute angle. When the lock cylinder locking clutch plate 48 is pushed by the second locking actuator 473, the lock cylinder locking clutch plate 48 rotates around... Figure 25 The motor 32 rotates counterclockwise at point C and moves down by moving the left corner downwards.

[0178] In this embodiment, the unlocking drive unit 461 and the locking drive unit 471 are located on opposite sides of the lock cylinder lever 441 so that when the lock cylinder lever 441 rotates in the unlocking or locking direction, it can abut against the locking drive unit 471 or the unlocking drive unit 461.

[0179] The handle-type smart door lock provided in this embodiment operates as follows:

[0180] The unlocking steps are as follows: Figures 18 to 20 As shown, during use, the key drives the lock cylinder lever 441 in the unlocking direction ( Figures 18 to 20 When the lock cylinder unlocking lever 46 rotates clockwise, the unlocking drive unit 461 abuts against the lock cylinder lever 441 to drive the lock cylinder unlocking lever 46 to rotate clockwise. During the clockwise rotation of the lock cylinder unlocking lever 46, the first unlocking actuator 462 abuts against the protruding part at the left end of the second handle lever 452 to drive the second handle lever 452 to rotate counterclockwise. In turn, the second handle lever 452 drives the latch lever 37 to rotate counterclockwise in the first direction. Figures 18 to 20 The lock cylinder rotates counterclockwise, which in turn drives the bolt 33 to move down into the housing 1 through the third lever 371 to unlock it. Before pushing the second handle lever 452, the second unlocking actuator 463 abuts against the drive motor 32. Therefore, during the clockwise rotation of the lock cylinder unlocking lever 46, the second unlocking actuator 463 pushes the drive motor 32 to rotate clockwise, so as to drive the drive motor 32 to separate from the gear set before the bolt 33 is unlocked.

[0181] The locking steps are as follows: Figures 21 to 23 As shown, during use, the lock cylinder lever 441 is driven by the key along the locking direction ( Figures 21 to 23 When the lock cylinder rotates counterclockwise, the locking drive unit 471 abuts against the lock cylinder lever 441 to drive the lock cylinder locking lever 47 to rotate counterclockwise. During the counterclockwise rotation of the lock cylinder locking lever 47, the first locking execution unit 472 abuts against the back lever 4512 on the latch lever 37 to drive the latch lever 37 to rotate in the opposite direction in the first direction, so as to drive the latch 33 to lock through the third lever 371 on the latch lever 37. Since the second locking execution unit 473 abuts against the drive motor 32 through the lock cylinder locking clutch 48, before the first locking execution unit 472 pushes the back lever 4512, the second locking execution unit 473 can push the drive motor 32 to separate from the gear set through the lock cylinder locking clutch 48.

[0182] In this embodiment, as Figures 26 to 31 As shown, the motor drive assembly 5 includes a gearbox 54 and a latch lever. The drive motor 32 is connected to the latch lever through the gearbox 54, and the latch lever is connected to the latch 33. Thus, the drive motor 32 can drive the latch lever to move, thereby controlling the movement of the latch 33 and realizing locking and unlocking.

[0183] In this embodiment, as Figures 29 to 31 As shown, the gearbox 54 contains a drive gear 541, an actuating gear 542, a first transmission gear 543, a second transmission gear 544, and a third transmission gear 545. The second transmission gear 544 is coaxially arranged with the drive gear 541 and fixedly connected to it, so that the second transmission gear 544 and the drive gear 541 rotate synchronously. The third transmission gear 545 is coaxially arranged with the actuating gear 542 and fixedly connected to it. The first transmission gear 543 is located between the second transmission gear 544 and the actuating gear 542, so that the drive gear 541 can drive the second transmission gear 544 to rotate synchronously. The second transmission gear 544 drives the first transmission gear 543, which meshes with it, to rotate. The first transmission gear 543 drives the actuating gear 542, which meshes with it, to rotate. The actuating gear 542 drives the third transmission gear 545, which is fixed to it, to rotate synchronously, so as to realize the rotational transmission from the drive gear 541 to the third transmission gear 545. The diameter of the third transmission gear 545 is smaller than the diameter of the actuating gear 542.

[0184] In this embodiment, the power transmission ratio between the drive gear 541 and the actuating gear 542 is greater than 1.

[0185] In some embodiments of this example, a worm gear is fixed on the drive shaft of the drive motor 32, and a drive gear 541 meshes with the worm gear to move synchronously with it. Specifically, the drive gear 541 is a helical gear, which meshes with the worm gear on the output shaft of the drive motor 32 to enable the drive motor 32 to drive the locking tongue lever through the gearbox 54.

[0186] In the above embodiments, by using a worm gear structure between the drive motor 32 and the gearbox 54 to achieve transmission, the drive motor 32 and the gearbox 54 can be placed on the same plane, avoiding the drive motor 32 being set perpendicular to the housing 1, thereby reducing the space occupied by the drive motor 32.

[0187] In some alternative implementations of this embodiment, such as Figure 30 and Figure 31 As shown, the drive gear 541 has a through groove inside, and the second transmission gear 544 is thicker than the drive gear 541, with its end engaged inside the through groove of the drive gear 541 to fix the two together. Alternatively, the first transmission gear 543 may be omitted, allowing the second transmission gear 544 to directly mesh with the actuating gear 542, or multiple first transmission gears 543 may be provided.

[0188] In this embodiment, as Figure 30 and Figure 31As shown, the latch lever is movably connected to the housing 1. The latch lever is provided with several transmission teeth, which mesh with the third transmission gear 545. When the drive motor 32 drives the third transmission gear 545 to rotate, the latch lever can be driven to rotate relative to the housing 1 through the transmission teeth. Since the latch lever is connected to the latch 33, it can drive the latch 33 to move, so as to lock or unlock.

[0189] In this embodiment, the latch lever is provided with a third lever 371, and the latch 33 is provided with a sliding groove. The third lever 371 is located in the sliding groove to drive the latch 33 to extend and retract.

[0190] Specifically, the latch lever is hinged to the housing 1, and the latch lever is driven by the drive motor 32 to rotate relative to the housing 1, so that the third lever 371 slides in the groove to drive the latch 33 to extend and retract.

[0191] In this embodiment, the groove below the latch 33 is opened in the horizontal direction, and the third lever 371 is rotatably connected to the latch lever. The third lever 371 is preferably a bearing.

[0192] In this embodiment, the latch lever is sleeved on the square steel connecting seat 34, and the latch lever can rotate relative to the square steel connecting seat 34. Specifically, the latch lever is provided with a circular through hole, which is configured to rotate on the square steel connecting seat 34.

[0193] In this embodiment, as Figures 26 to 28 As shown, during the locking process, the drive motor 32 starts, and drives the lock tongue lever relative to the housing 1 through the drive gear 541, the second transmission gear 544, the first transmission gear 543, the actuation gear 542, and the third transmission gear 545. Figure 1 Rotate counterclockwise, and then slide to the left in the groove on the latch 33 via the third lever 371, pressing down the latch 33 (as shown). Figure 27 As shown), until the locking tongue 33 is fully inserted into the housing 1 under the drive of the locking tongue lever (as shown). Figure 28 As shown), unlocking is completed. Conversely, when locking is required, the drive motor 32 rotates in the opposite direction, thereby driving the lever relative to the housing 1 along... Figure 26 The lock tongue 33 is rotated clockwise and then slid to the right in the groove on the third lever 371, pushing the lock tongue 33 up until the lock tongue 33 is fully extended out of the housing 1 under the drive of the lock tongue lever, thus completing the locking.

[0194] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A smart lock, characterized in that, include: Shell (1); The latch assembly (2) includes a latch (33) which is movably disposed within the housing (1); A handle drive assembly (3) is connected to the latch (33) to drive the latch (33) to extend or retract into the housing (1); The motor drive assembly (5) is connected to the latch (33) to drive the latch (33) to extend or retract into the housing (1); The lock cylinder drive assembly (4) is connected to the lock tongue (33) to drive the lock tongue (33) to extend or retract into the housing (1); Among them, the handle drive assembly (3), the motor drive assembly (5) and the lock cylinder drive assembly (4) are all independent of each other, so that the three can independently drive the lock tongue (33) to extend or retract into the housing (1); The latch assembly (2) further includes: The locking tongue fixing plate (22) is movably connected to the housing (1); The linkage trigger (23) is movably connected to the locking tongue fixing plate (22); A large latch (241) is connected to the housing (1), and a first elastic element (242) is provided between the large latch (241) and the housing (1). A small latch (251) is connected to the housing (1), and a second elastic element (252) is provided between the small latch (251) and the housing (1). During the closing process of the door, the linkage trigger (23) is connected to the large lock tongue (241), and the lock tongue fixing plate (22) is configured to drive the large lock tongue (241) into the housing (1) together through the linkage trigger (23) under the action of external force; When the door is closed, the latch fixing plate (22) is configured to extend out of the housing (1) under the action of external force and drive the linkage trigger (23) to separate from the large latch (241). The large latch (241) extends out of the housing (1) under the action of the first elastic member (242); and the small latch (251) is squeezed by the door frame and is located inside the housing (1). During the opening of the door, the linkage trigger (23) is connected to the large lock tongue (241), and the lock tongue fixing plate (22) is configured to drive the large lock tongue (241) into the housing (1) together through the linkage trigger (23) under the action of external force; When the door is open, the small latch (251) moves outward from the housing (1) under the action of the second elastic element (252), causing the small latch (251) to abut against the linkage trigger (23), thereby driving the linkage trigger (23) to separate from the large latch (241), and the large latch (241) extends out of the housing (1) under the action of the first elastic element (242). The latch assembly (2) also includes a linkage plate (26), one side of which is fixedly connected to the latch fixing plate (22), and the other side of the linkage plate (26) is hinged to the linkage trigger (23); The third elastic element (27) is connected between the linkage plate (26) and the linkage trigger (23), and the third elastic element (27) has an elastic force to drive the linkage trigger (23) to connect with the large lock tongue (241); When the door is open, the small latch (251) moves outward from the housing (1) to drive the linkage trigger (23) to overcome the elastic force of the third elastic element (27) and rotate around the linkage plate (26) to separate from the large latch (241).

2. The smart lock according to claim 1, characterized in that, The large latch (241) is provided with a large latch trigger plate (243), and the linkage trigger (23) is provided with a trigger part (231). When the door is closed, the trigger part (231) abuts against the outside of the large latch trigger plate (243) to drive the large latch (241) to move into the housing (1); When the door is open, the trigger part (231) separates from the large latch trigger plate (243).

3. The smart lock according to claim 2, characterized in that, After the large latch (241) extends out of the housing (1) under the action of the first elastic member (242), the latch fixing plate (22) drives the linkage trigger member (23) to move outward of the housing (1) under the action of external force, and the trigger part (231) overcomes the elastic force of the third elastic member (27) and enters the outside of the large latch trigger plate (243) from the inside.

4. The smart lock according to claim 3, characterized in that, When the trigger part (231) is configured to move outward toward the outer side of the housing (1), the trigger part (231) slides against the large latch trigger plate (243) to drive the linkage trigger member (23) to overcome the elastic force of the third elastic member (27) and rotate around the linkage plate (26) so as to enter the outer side of the large latch trigger plate (243) from the inside.

5. The smart lock according to any one of claims 2-4, characterized in that, The linkage plate (26) is provided with a limiting part (261), and the linkage trigger (23) is adapted to abut against the limiting part (261) so that the trigger part (231) is located at the large lock tongue trigger plate (243).

6. The smart lock according to any one of claims 2-4, characterized in that, The small latch (251) is provided with a small latch trigger plate (253) on the side near the linkage trigger (23), and the small latch trigger plate (253) is provided with an abutment part; The linkage trigger (23) has a protruding abutting adapter on one side, which is adapted to abut against the abutting adapter to push the linkage trigger (23) to overcome the elastic force of the third elastic member (27) and rotate around the linkage plate (26) so that the linkage trigger (23) separates from the large locking tongue (241).

7. The smart lock according to any one of claims 1-4, characterized in that, The latch assembly (2) further includes a small latch fixing plate (28), which is fixedly connected to the housing (1), and has a through hole suitable for the small latch (251) to pass through. The second elastic member (252) is located between the small latch fixing plate (28) and the end of the small latch (251).

8. The smart lock according to any one of claims 1-4, characterized in that, The latch assembly (2) further includes a large latch fixing plate (29), which is fixedly connected to the housing (1), and has a through hole suitable for the large latch (241) to pass through, and the first elastic member (242) is located between the large latch fixing plate (29) and the end of the large latch (241).

9. The smart lock according to any one of claims 1-4, characterized in that, The handle drive assembly (3) includes: A square steel connecting seat (34) is connected to the housing (1) and is adapted to connect a handle to control the extension and retraction of the latch (33); The first motor paddle (35) is sleeved on the square steel connecting seat (34) and moves synchronously with the square steel connecting seat (34). The first motor paddle (35) is provided with a paddle block. The second motor paddle (36) is movably connected to the housing (1) and is located on the side of the drive motor (32) in the motor drive assembly (5). The second motor paddle (36) includes a first paddle (361) and a second paddle (362). The first paddle (361) abuts against the paddle block, and the second paddle (362) abuts against the drive motor (32). The square steel connecting seat (34) is configured to rotate in the unlocking or locking direction under the drive of the handle, and the first shift foot (361) is pushed by the shift block to drive the second shift foot (362) to rotate relative to the housing (1), so as to drive the drive motor (32) to move until it is separated from the gear set adapted to it.

10. The smart lock according to claim 9, characterized in that, The paddle includes a first paddle (351) and a second paddle (352); The square steel connecting seat (34) is configured such that when the handle rotates along the unlocking direction, the first lever (351) pushes the first lever (361) to drive the second lever (362) to rotate relative to the housing (1). The square steel connecting seat (34) is configured such that when it is rotated in the locking direction by the handle, the second lever (352) pushes the first lever (361) to drive the second lever (362) to rotate relative to the housing (1).

11. The smart lock according to claim 10, characterized in that, The handle drive assembly (3) also includes a latch lever (37), which is sleeved on the square steel connecting seat (34). The latch lever (37) is provided with a third lever (371) suitable for sliding in the latch groove. When the square steel connecting seat (34) rotates in the unlocking direction, the lock tongue paddle (37) is driven by the square steel connecting seat (34) to move the third paddle block (371) towards the inside of the housing (1), so as to drive the lock tongue (33) to retract into the housing (1).

12. The smart lock according to claim 9, characterized in that, The handle drive assembly (3) further includes: The first handle lever (38) is sleeved on the square steel connecting seat (34) and moves synchronously with the square steel connecting seat (34); The rocker arm (39) is hinged to the housing (1). One end of the rocker arm (39) abuts against the first handle lever (38), and the other end of the rocker arm (39) abuts against the fourth lever (372) on the latch lever (37). When the square steel connecting seat (34) rotates in the unlocking direction, the first handle lever (38) is driven by the square steel connecting seat (34) to push the rocker arm (39) to rotate, and the third lever (371) is driven by the fourth lever (372) and the latch lever (37) to move towards the inside of the housing (1) so as to drive the latch (33) to retract into the housing (1). When the square steel connecting seat (34) rotates in the locking direction to push the lock tongue (33) out of the housing (1), the lock tongue paddle (37) is driven by the lock tongue to reset, and the lock tongue paddle (37) drives the rocker arm (39) and the first handle paddle (38) to reset via the fourth paddle block (372).

13. The smart lock according to claim 1, characterized in that, The motor drive assembly (5) includes: A drive motor (32) is connected to the housing (1); A gearbox (54) is provided with a drive gear (541) and an actuation gear (542) inside. The actuation gear (542) is connected to the drive gear (541). The drive gear (541) is connected to the output end of the drive motor (32) to drive the drive gear (541) and the actuation gear (542) to rotate synchronously. The latch lever (37) in the handle drive assembly is provided with a plurality of transmission teeth, which are connected to the actuating gear (542) to drive the latch lever (37) to move, thereby controlling the extension and retraction of the latch (33).

14. The smart lock according to claim 13, characterized in that, The latch lever (37) is hinged to the housing (1), and the latch lever (37) is driven by the drive motor (32) to rotate relative to the housing (1) so that the third lever (371) slides in the groove on the latch to drive the latch (33) to extend and retract.

15. The smart lock according to claim 14, characterized in that, The gearbox (54) is also provided with a first transmission gear (543) and a second transmission gear (544). The second transmission gear (544) is located on one side of the drive gear (541) and is fixedly connected to the drive gear (541). The first transmission gear (543) is located between the second transmission gear (544) and the actuating gear (542). The gearbox (54) is also provided with a third transmission gear (545), which is coaxially arranged with the actuating gear (542) and the two are fixed together. The third transmission gear (545) meshes with the transmission teeth on the locking tongue paddle (37). The diameter of the third transmission gear (545) is smaller than the diameter of the actuating gear (542).

16. The smart lock according to claim 1, characterized in that, The lock cylinder drive assembly (4) includes: A lock cylinder (44) is provided therein, which is adapted to insert a key to control the extension and retraction of the bolt (33); the lock cylinder (44) is provided with a lock cylinder lever (441), which is driven by the key to rotate; The lock cylinder unlocking paddle (46) is movably connected to the housing (1). The lock cylinder unlocking paddle (46) includes an unlocking drive part (461), a first unlocking execution part (462), and a second unlocking execution part (463). The lock cylinder locking lever (47) is movably connected to the housing (1). The lock cylinder locking lever (47) includes a locking drive part (471), a first locking execution part (472), and a second locking execution part (473). When the lock cylinder lever (441) is driven by the key to rotate in the unlocking direction, the unlocking drive unit (461) abuts against the lock cylinder lever (441) to drive the lock cylinder unlocking paddle (46) to rotate; the first unlocking execution unit (462) abuts against the latch paddle (37) in the handle drive assembly to drive the latch paddle (37) to rotate in the first direction to drive the latch (33) to unlock; the second unlocking execution unit (463) abuts against the drive motor (32) to drive the drive motor (32) to separate from its own gear set; When the lock cylinder lever (441) is driven by the key to rotate in the locking direction, the locking drive part (471) abuts against the lock cylinder lever (441) to drive the lock cylinder locking plate (47) to rotate; the first locking execution part (472) abuts against the bolt plate (37) to drive the bolt plate (37) to rotate in the opposite direction in the first direction to drive the bolt (33) to lock; the second locking execution part (473) abuts against the drive motor (32) to drive the drive motor (32) to separate from the gear set before the bolt (33) is locked.

17. The smart lock according to claim 16, characterized in that, The lock cylinder drive assembly (4) further includes: The lock cylinder upper locking clutch plate (48) is movably connected to the housing (1), and the lock cylinder upper locking clutch plate (48) is adapted to abut against the drive motor (32); When the lock cylinder lever (441) is driven by the key to rotate in the locking direction, the second locking actuator (473) abuts against the locking clutch plate to drive it to rotate, so that the lock cylinder locking clutch plate (48) abuts against the drive motor (32) to drive the drive motor (32) to separate from the gear set before the lock tongue (33) is locked.

18. The smart lock according to claim 17, characterized in that, The latch lever (37) is provided with a third lever (371) and a back lever (4512), the latch (33) is provided with a groove, and the third lever (371) is provided in the groove to drive the latch (33) to move; When the lock cylinder lever (441) is driven by the key to rotate in the locking direction, the first locking actuator (472) abuts against the back lever (4512) to drive the bolt lever (37) to rotate in the opposite direction in the first direction, so as to drive the bolt (33) to lock.

19. The smart lock according to claim 17, characterized in that, The paddle assembly (45) also includes a second handle paddle (452), which is fixedly connected to the latch paddle (37); When the lock cylinder lever (441) is driven by the key to rotate in the unlocking direction, the first unlocking actuator (462) abuts against the second handle lever (452) to drive the bolt lever (37) to rotate in the first direction, thereby driving the bolt (33) to unlock.

20. The smart lock according to any one of claims 17-19, characterized in that, A reset component is provided between the drive motor (32) and the housing (1). After the lock cylinder lever (441) is reset, the reset component drives the drive motor (32) and the lock cylinder unlocking lever (46) to reset. When the lock cylinder lever (441) is driven by the key to rotate in the locking direction, the lock tongue (33) locks, thereby driving the lock tongue lever (37) to reset.

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