A smart lock

Abstract

The present invention provides an intelligent lock. When the door is electrically opened and closed from outside, the transmission clutch mechanism switches to connecting the rotating shaft with the unlocking drive mechanism, while the rotating shaft is disconnected from the inner handle shell. After the outer handle assembly collects the key information, the electronic control assembly prompts the unlocking drive mechanism to operate to drive the rotating shaft to rotate. The rotation of the rotating shaft drives the thumb wheel to rotate to realize automatic unlocking. When it is necessary to unlock the door from the inside, the transmission clutch mechanism switches to connecting the rotating shaft with the inner handle shell, while the rotating shaft is disconnected from the unlocking drive mechanism. The door can be easily unlocked by rotating the inner handle shell to drive the rotating shaft and the thumb wheel to rotate. When the inner handle shell is rotated, the rotating shaft is disconnected from the unlocking drive mechanism, and the door can be easily unlocked without overcoming the electromagnetic resistance force of the unlocking drive mechanism. Through the transmission clutch mechanism, the rotating shaft will not be connected to the unlocking drive mechanism and the inner handle shell at the same time, so as to prevent accidental injury to the hand holding the inner handle shell by simultaneous unlocking from the inside and outside, thereby effectively improving the safety of the intelligent lock.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, and in particular to a smart lock. Background Art

[0002] Chinese patent document CN212562817U discloses a dangling lock cylinder and a smart lock equipped with the same. The dangling lock cylinder comprises an outer handle assembly mounted on the outside of the dangling lock cylinder, and an inner handle assembly mounted on the inside of the dangling lock cylinder. The dangling lock cylinder comprises a main lock sleeve formed with a through-hole, a main lock cylinder rotatably disposed within the through-hole, an unlocking member coaxially disposed with the main lock cylinder and used to drive the door lock's bolt mechanism, and a manual unlocking clutch mechanism disposed between the main lock cylinder and the unlocking member to control the transmission connection between the two. The manual unlocking clutch mechanism comprises a master key assembly and a clutch member. The master key assembly comprises a plurality of key installation cavities arranged axially on the main lock cylinder, a plurality of key members with unlocking openings reciprocatingly disposed in each key installation cavity, and a biasing member that applies a biasing force to the key members, forcing them into a locked state. This prior art provides a smart lock system that combines both intelligent unlocking and key-operated mechanical unlocking, in which the dangling lock cylinder and the components through which the signal line passes rotate synchronously.

[0003] In the locked state, when opening the door from the inside of this prior art, since the inner handle housing and the transmission core are plugged into each other and maintain a circumferentially fixed, non-rotatable connection between the two, simply rotating the inner handle housing can directly drive the dial wheel through the transmission core, thereby driving the lock tongue mechanism to move in the locking direction, completing the unlocking process. When opening the door from the outside using intelligent unlocking, the information acquisition module on the outer handle assembly first collects relevant information, which is then transmitted to the control module in the inner handle assembly via a signal line in a threading channel provided on the main lock core. When the collected information is successfully compared with the information pre-stored in the control module, the electric unit is activated to drive the clutch pin provided on the inner handle inner core assembly to move, which is embedded in the clutch slot formed on the inner handle bottom cover of the inner handle housing. As a result, the main lock core is connected to the inner handle housing through the circumferentially fixed inner handle inner core assembly and the intelligent unlocking clutch mechanism composed of the clutch pin and the clutch slot. At this time, rotating the outer handle assembly in the unlocking direction drives the inner handle shell to rotate together, and the transmission core that is circumferentially non-rotatably plugged into the inner handle bottom cover in the inner handle shell drives the dial wheel fixedly connected to it to rotate, and rotating in the unlocking direction drives the lock tongue mechanism in the door lock to move in the locking direction, completing the unlocking process.

[0004] This prior art provides the simplest way to upgrade an ordinary mechanical security lock to a smart lock by simply replacing the lock cylinder and handle, without replacing the door lock inside the door leaf. However, when the above-mentioned smart lock uses smart unlocking, after the smart module successfully verifies, only the transmission relationship between the outer handle assembly and the dial is established. The outer handle assembly still needs to be turned to open the lock, and the lock cannot be opened automatically.

[0005] A simple approach is to install a drive mechanism, such as an electric motor, directly inside the lock housing to drive the bolt forward and backward. This mechanism receives verification information from the intelligent module to drive the bolt forward and backward. However, this approach fails to meet the requirement of upgrading a standard mechanical lock to a smart lock by simply replacing the lock cylinder and handle without replacing the door lock inside the door leaf.

[0006] In order to realize the installation of a driving mechanism (such as an electric motor) in the corresponding mechanisms of the lock head and handle that can drive the thumbwheel to drive the lock tongue forward and backward, such a driving mechanism must be installed in the inner handle assembly from a safety perspective, and it needs to be installed between the inner lock sleeve and the transmission core, that is, the output end of the driving mechanism and the inner handle are connected to the transmission core together. This brings two problems: First, when unlocking the door from the inside, in addition to overcoming mechanical resistance, it is also necessary to overcome the electromagnetic resistance of the driving mechanism, and this electromagnetic resistance is much greater than the usual mechanical resistance; second, such a structure poses certain risks to the user. For example, when unlocking the door from the inside and outside at the same time, the torque generated by the sudden electric unlocking on the inner handle is likely to injure the hand holding the inner handle. Summary of the Invention

[0007] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the lock handle smart lock upgrade kit in the prior art cannot automatically open the lock, and to provide a smart lock that is both easy and safe and can be opened automatically.

[0008] To this end, the present invention provides a smart lock, comprising:

[0009] The main lock head has an outer lock sleeve and an inner lock sleeve, and a dial wheel is provided between the inner lock sleeve and the outer lock sleeve;

[0010] A rotating shaft, axially fixed and rotatably disposed in the inner locking sleeve, the rotating shaft being coaxial with the thumbwheel and circumferentially fixedly connected;

[0011] An outer handle assembly is mounted on the outer end of the outer locking sleeve, and an information collection module is provided on the outer handle assembly;

[0012] An inner handle assembly is mounted on the outer end of the inner lock sleeve. The inner handle assembly has an inner handle shell that is at least partially rotatably mounted on the inner lock sleeve, and an electric control assembly disposed therein. The information acquisition module is electrically connected to the electric control assembly. The electric control assembly has an unlocking drive mechanism fixedly arranged relative to the inner lock sleeve. The output end of the unlocking drive mechanism and the inner handle shell are connected to the rotating shaft via a transmission clutch mechanism. The transmission clutch mechanism switches the connection between the rotating shaft and the unlocking drive mechanism or the inner handle shell.

[0013] Optionally, in the above-mentioned smart lock, the transmission clutch mechanism includes:

[0014] a clutch member, circumferentially fixedly connected to the rotating shaft;

[0015] a transmission member movably connected to the clutch member and driven by the output end of the unlocking drive mechanism to rotate about the rotation axis; a second clutch mechanism is provided between the transmission member and the clutch member, and the second clutch mechanism is in a normally engaged state;

[0016] The pushing member is fixedly mounted on the inner handle shell at least circumferentially, and is connected to the clutch member and the transmission member for relative movement. A first clutch mechanism is provided between the pushing member and the clutch member, and the first clutch mechanism is in a normally separated state. By moving the pushing member relative to the clutch member, the first clutch mechanism between the pushing member and the clutch member switches from a disengaged state in which they are circumferentially disengaged from each other to a circumferentially relatively fixed coupled state. Further moving the pushing member drives the relative movement between the clutch member and the transmission member, thereby switching the second clutch mechanism between the clutch member and the pushing member from a circumferentially relatively fixed coupled state to a circumferentially disengaged state.

[0017] Optionally, in the above-mentioned smart lock, the transmission clutch mechanism also includes a connecting seat coaxially fixedly connected to the rotating shaft; the clutch member is a clutch ring that can slide axially and is fixedly connected circumferentially to the connecting seat; the transmission member is a transmission gear ring that is axially relatively fixedly connected to the connecting seat; and the pushing member is a pushing ring that can axially slide and be sleeved on the clutch ring.

[0018] Optionally, in the above-mentioned smart lock, the first clutch mechanism is provided with a normally separated biasing member for maintaining a normally separated state; and / or the second clutch mechanism is provided with a normally engaged biasing member for maintaining a normally engaged state.

[0019] Optionally, in the above-mentioned smart lock, the first clutch mechanism includes a first clutch engagement structure provided between the clutch ring and the push ring; the second clutch mechanism includes a second clutch engagement structure provided between the clutch ring and the transmission gear ring.

[0020] Optionally, in the above-mentioned smart lock, the first clutch engagement structure includes a first clutch protrusion provided on the pushing ring and a first clutch groove provided on the clutch ring;

[0021] The second clutch engagement structure includes a second clutch groove provided on the transmission gear ring and a second clutch protrusion provided on the clutch ring.

[0022] Optionally, in the above-mentioned smart lock, the clutch ring can be axially slidably sleeved on the outside of the connecting seat, and a guide mechanism is provided between the clutch ring and the connecting seat, and the guide mechanism keeps the clutch ring and the connecting seat circumferentially fixed.

[0023] Optionally, in the above-mentioned smart lock, the guide mechanism includes an axial groove formed on the side of the connecting seat facing the clutch ring, an axially extending guide column arranged in the axial groove, and a lug provided on the inner wall of the clutch ring corresponding to the axial groove, and a guide hole formed on the lug corresponding to the guide column, and the guide hole is slidably sleeved on the guide column.

[0024] Optionally, in the above-mentioned smart lock, the guide mechanism also includes a shallow groove formed on the periphery of the connecting seat facing the clutch ring, and a shallow protrusion corresponding to the shallow groove is provided on the inner wall of the clutch ring and is suitable for being embedded in the shallow groove.

[0025] Optionally, in the above-mentioned smart lock, the normally combined biasing member is a compression spring sleeved on the guide column, one end of the compression spring abuts against the side of the lug facing away from the bottom of the axial groove, and the other end acts on the connecting seat through a pressure plate fixed at the notch of the axial groove; the compression spring applies a biasing force toward the transmission gear ring on the clutch ring.

[0026] Optionally, in the above-mentioned smart lock, the push ring can be axially slidably installed on the inner wall of the inner handle shell; a sliding ring can be axially slidably sleeved on the outer wall of the corresponding part of the inner handle shell; an axially extending push groove is formed on the shell of the corresponding part of the inner handle shell, and a corresponding embedding groove is formed on the corresponding sliding ring; a first connecting block with a protruding portion is fixed to the push ring through the embedding groove on the sliding ring and the push groove on the inner handle shell through the protruding portion.

[0027] Optionally, in the above-mentioned smart lock, an outer edge of one end of the push ring is provided with an embedding groove suitable for the protruding end of the protrusion to be embedded, and the protruding end of the protrusion embedded in the embedding groove is fixed to the push ring by a third fastener.

[0028] Optionally, in the above-mentioned smart lock, the inner handle shell includes an inner handle outer shell and an inner handle bottom cover, the inner handle outer shell is opened on one side of the main lock head, and the inner handle bottom cover is installed on the opening;

[0029] The inner handle bottom cover is fixedly connected to the outer end of the inner locking sleeve. A rotation connection mechanism is provided between the inner handle bottom cover and the inner handle outer shell. The rotation connection mechanism rotatably and axially fixes the inner handle bottom cover on the inner handle outer shell.

[0030] Optionally, in the above-mentioned smart lock, the rotation connection mechanism includes a mounting groove formed on a side of the inner handle bottom cover facing the inner lock sleeve and recessed away from the inner lock sleeve, a plurality of ball mounting holes radially passing through the inner handle bottom cover in the circumferential direction of the groove body of the mounting groove, locking balls arranged in the ball mounting holes, and a bottom cover pressing block fixedly embedded in the mounting groove and abutting against each of the locking balls; the bottom cover pressing block abuts against the locking balls so that a portion of the bottom cover protrudes radially out of the ball mounting holes;

[0031] The rotation connection mechanism also includes an annular clamping edge provided on the inner wall of the opening of the inner handle shell, and the portion of the ball radially protruding from the ball mounting hole is suitable for being clamped in the annular clamping edge.

[0032] Optionally, in the above-mentioned smart lock, the annular card edge is formed on a card edge molding fixed on the inner wall of the opening of the inner handle shell.

[0033] Optionally, in the above-mentioned smart lock, the bottom cover pressing block is an integrally formed component and is integrally fixed to the inner handle bottom cover by a second fastener.

[0034] Optionally, in the above-mentioned smart lock, the normally separated biasing member is a normally separated compression spring provided between the card edge forming member and the pushing ring, and the normally separated compression spring applies a biasing force toward the pushing ring and away from the clutch ring.

[0035] Optionally, in the above-mentioned smart lock, the unlocking drive mechanism is an electric motor, the output end of the electric motor is provided with an output gear, the transmission ring gear is an internal gear ring, and the output gear is meshed with the transmission ring gear.

[0036] Optionally, in the above-mentioned smart lock, the electric control component having the unlocking drive mechanism is arranged on the outer end of the inner locking sleeve through an inner transmission core fixedly arranged relative to the inner locking sleeve.

[0037] Optionally, in the above-mentioned smart lock, the end of the inner transmission core close to the outer end of the inner lock sleeve is circumferentially fixedly connected to the inner connecting block through a non-circular plug-in structure, and the other end of the inner connecting block is connected to the electronic control component; the inner connecting block and the rotating shaft are connected by a first bearing; the inner connecting block and the connecting seat are connected by a second bearing; the rotating shaft and the connecting seat are fixedly connected by a fourth fastener; an axial limiting flange is provided on the inner connecting block between the rotating shaft and the connecting seat.

[0038] Optionally, in the above-mentioned smart lock, the inner handle assembly further includes an electric control assembly mounting bracket, the electric control assembly mounting bracket is fixedly connected to the electric control assembly, and one end of the inner connecting block facing the transmission ring gear is fixedly connected to the electric control assembly mounting bracket.

[0039] The technical solution of the present invention has the following advantages:

[0040] 1. In the smart lock provided by the present invention, the output end of the unlocking drive mechanism and the inner handle shell are connected to the rotating shaft through a transmission clutch mechanism, and the transmission clutch mechanism switches the connection between the rotating shaft and the unlocking drive mechanism or the inner handle shell. When the door is electrically switched on and off from outside, the transmission clutch mechanism switches to connecting the rotating shaft to the unlocking drive mechanism, while the rotating shaft is disconnected from the inner handle shell. When the information collection module on the outer handle assembly collects key information such as fingerprints or passwords, the information is transmitted to the electronic control assembly. The electronic control assembly gives an electrical signal to prompt the unlocking drive mechanism to operate to drive the rotating shaft to rotate. The rotation of the rotating shaft drives the thumb wheel to rotate to achieve automatic unlocking. When it is necessary to unlock the door from the inside, the transmission clutch mechanism switches to connecting the rotating shaft to the inner handle shell, while the rotating shaft is disconnected from the unlocking drive mechanism. By rotating the inner handle shell, the rotating shaft is disconnected from the unlocking drive mechanism, and the lock can be easily unlocked without overcoming the electromagnetic resistance force of the unlocking drive mechanism. Through the transmission clutch mechanism, the rotating shaft will not be connected to the unlocking drive mechanism and the inner handle shell at the same time, preventing accidental injury to the hand holding the inner handle shell by unlocking from both sides, thereby effectively improving the security of the smart lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 A schematic diagram of the three-dimensional structure of a smart lock provided by an embodiment of the present invention;

[0043] Figure 2 A sectional view of the three-dimensional structure of the smart lock provided by an embodiment of the present invention;

[0044] Figure 3 This is an exploded view of the clutch ring, connecting seat, push ring and transmission ring gear;

[0045] Figure 4 It is a cross-sectional view of the clutch ring, connecting seat, pushing ring and transmission gear ring;

[0046] Figure 5 It is a cross-sectional view of the clutch ring, connecting seat, pushing ring and transmission gear ring;

[0047] Figure 6 Schematic diagram of the transmission ring gear, electronic control component mounting bracket and output gear;

[0048] Figure 7 This is an exploded view of the transmission ring gear, electronic control component mounting bracket, and output gear;

[0049] Figure 8 A schematic diagram of the coordination between the rotating shaft, the inner connecting block, the electronic control component mounting bracket, and the electronic control component;

[0050] Figure 9 It is a schematic diagram of the clutch ring and the transmission gear ring being engaged with the rotating shaft;

[0051] Figure 10 Schematic diagram of the push ring and clutch ring in engagement with the rotating shaft;

[0052] Figure 11 It is a schematic diagram of the cooperation between the bottom cover pressing block, the inner handle bottom cover and the inner handle shell;

[0053] Figure 12 It is a partial cross-sectional view of the bottom cover pressing block, the inner handle bottom cover and the inner handle shell;

[0054] Figure 13 This is a schematic diagram of the coordination between the normally separated spring, the push ring, the sliding ring and the inner handle housing;

[0055] Figure 14 It is a cross-sectional view of the cooperation between the normally separated spring, the push ring, the sliding ring and the inner handle housing;

[0056] Figure 15 This is a schematic diagram of the inner handle bottom cover, rotating shaft and connecting seat;

[0057] Figure 16 A cross-sectional view showing the cooperation between the inner handle bottom cover, the rotating shaft and the connecting seat;

[0058] Figure 17 This is a schematic diagram of the outer handle bottom cover and the main lock;

[0059] Figure 18 Schematic diagram of the main lock and the bottom cover of the inner handle.

[0060] Description of reference numerals:

[0061] 1. Outer handle assembly; 11. Outer handle bottom cover; 111. Fitting groove;

[0062] 2. Inner handle assembly; 21. Inner handle bottom cover; 211. First fastener; 212. Bottom cover pressure block; 213. Locking ball; 214. Second fastener; 215. Ball mounting hole; 22. Inner handle housing; 221. Annular flange; 23. Sliding ring; 231. First connecting block; 232. Pushing ring; 2321. First clutch protrusion; 233. Normally disengaged spring; 234. Third fastener; 24. Connecting seat; 241. Fourth fastener; 242. First mounting hole; 243. Guide post; 244. Second mounting hole; 245. Third bearing; 246, shallow groove; 25, inner connecting block; 251, second bearing; 252, first bearing; 253, third mounting hole; 254, axial limit flange; 26, clutch ring; 261, compression spring; 262, pressing plate; 263, fifth fastener; 264, second clutch protrusion; 265, first clutch groove; 266, shallow protrusion; 27, transmission ring gear; 271, second clutch groove; 28, electronic control assembly mounting bracket; 281, fourth mounting hole; 282, sixth fastener; 29, electronic control assembly; 291, output gear; 292, seventh fastener;

[0063] 3. Main lock; 31. Engaging protrusion; 311. Fifth mounting hole; 32. Rotating shaft; 321. Annular groove; 33. Inner transmission core; 34. Lock cylinder; 35. Dial wheel; 36. Limit pin. DETAILED DESCRIPTION

[0064] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0065] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present 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.

[0066] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0067] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0068] Example

[0069] This embodiment provides a smart lock, such as Figure 1 and Figure 2 As shown, it includes an outer handle assembly 1, an inner handle assembly 2, a main lock head 3 and a rotating shaft 32, wherein the main lock head 3 has an outer lock sleeve and an inner lock sleeve, and a thumb wheel 35 is provided between the inner lock sleeve and the outer lock sleeve; the rotating shaft 32 is axially fixed and rotatably arranged in the inner lock sleeve, and the rotating shaft 32 is coaxial with the thumb wheel 35 and circumferentially fixedly connected; the outer handle assembly 1 is mounted on the outer end of the outer lock sleeve, and an information collection module is provided on the outer handle assembly 1; the inner handle assembly 2 is mounted on the outer end of the inner lock sleeve, and the inner handle assembly 2 has an inner handle shell that is at least partially rotatably mounted on the inner lock sleeve, and an electric control assembly 29 arranged therein, and the information collection module is electrically connected to the electric control assembly 29; the electric control assembly 29 has an unlocking drive mechanism fixedly arranged relative to the inner lock sleeve, and the output end of the unlocking drive mechanism and the inner handle shell are connected to the rotating shaft 32 through a transmission clutch mechanism, and the transmission clutch mechanism switches the connection between the rotating shaft 32 and the unlocking drive mechanism or the inner handle shell.

[0070] In this intelligent lock, the output end of the unlocking drive mechanism and the inner handle shell are connected to the rotating shaft 32 through a transmission clutch mechanism. The transmission clutch mechanism switches the connection between the rotating shaft 32 and the unlocking drive mechanism or the inner handle shell. When the door is electrically opened and closed from the outside, the transmission clutch mechanism switches to connecting the rotating shaft 32 with the unlocking drive mechanism, while the rotating shaft 32 is disconnected from the inner handle shell. When the information acquisition module on the outer handle assembly 1 collects key information such as fingerprints or passwords, it transmits the information to the electronic control assembly 29. The electronic control assembly 29 sends an electrical signal to prompt the unlocking drive mechanism to operate to drive the rotating shaft 32 to rotate. The rotation of the rotating shaft 32 drives the dial wheel 35 to rotate to achieve automatic unlocking. When it is necessary to unlock the door from the inside, the transmission clutch mechanism switches to the rotating shaft 3 2 is connected to the inner handle shell, and the rotating shaft 32 is not connected to the unlocking drive mechanism. The inner handle shell is rotated to drive the rotating shaft 32 and the dial wheel 35 to rotate, so that the door can be easily unlocked from the inside. When the inner handle shell is rotated, the rotating shaft 32 is disconnected from the unlocking drive mechanism, and the door can be easily unlocked without overcoming the electromagnetic resistance force of the unlocking drive mechanism. Through the transmission clutch mechanism, the rotating shaft 32 will not be connected to the unlocking drive mechanism and the inner handle shell at the same time, preventing accidental injury to the hand holding the inner handle shell when unlocking from both sides at the same time, thereby effectively improving the safety of the smart lock.

[0071] See also Figure 2 The outer lock sleeve is provided with a lock core 34. The information acquisition module is connected to the electric control component 29 via a signal line.

[0072] The transmission clutch mechanism includes a clutch member, a transmission member and a pushing member, wherein the clutch member is fixedly connected to the rotating shaft 32 in the circumferential direction; the transmission member is movably connected relative to the clutch member, and is driven by the output end of the unlocking drive mechanism to rotate around the rotating shaft 32; a second clutch mechanism is provided between the transmission member and the clutch member, and the second clutch mechanism is in a normally engaged state. Under normal circumstances, the transmission member and the clutch member remain relatively fixed in the circumferential direction; the pushing member is at least circumferentially fixedly installed on the inner handle shell, and is connected to the clutch member and the transmission member for relative movement. A first clutch mechanism is provided between the pushing member and the clutch member, and the first clutch mechanism is in a normally separated state. Under normal circumstances, the pushing member and the clutch member are circumferentially disengaged from each other; by moving the pushing member relative to the clutch member, the first clutch mechanism between the pushing member and the clutch member switches from a disengaged state in which they are circumferentially disengaged from each other to a circumferentially relatively fixed engaged state, and further moving the pushing member drives the relative movement between the clutch member and the transmission member, thereby making the second clutch mechanism between the clutch member and the pushing member switch from a circumferentially relatively fixed engaged state to a circumferentially disengaged state.

[0073] See also Figures 3 to 10The transmission clutch mechanism also includes a connecting seat 24 coaxially fixedly connected to the rotating shaft 32; a clutch member, a clutch ring 26, axially slidable and circumferentially fixedly connected to the connecting seat 24; a transmission member, a transmission gear ring 27, axially fixedly connected to the connecting seat 24; and a pusher, a pusher ring 232, axially slidably sleeved on the clutch ring 26. Pushing the pusher ring 232 can simultaneously disengage the first clutch mechanism and engage the second clutch mechanism.

[0074] The first clutch mechanism is provided with a normally separated biasing member for maintaining a normally separated state; and / or the second clutch mechanism is provided with a normally engaged biasing member for maintaining a normally engaged state.

[0075] See also Figure 3 The first clutch mechanism includes a first clutch meshing structure provided between the clutch ring 26 and the push ring 232 ; the second clutch mechanism includes a second clutch meshing structure provided between the clutch ring 26 and the transmission gear ring 27 .

[0076] See also Figure 3 The first clutch engagement structure includes a first clutch protrusion 2321 provided on the push ring 232 and a first clutch groove 265 provided on the clutch ring 26; the second clutch engagement structure includes a second clutch groove 271 provided on the transmission gear ring 27 and a second clutch protrusion 264 provided on the clutch ring 26.

[0077] The clutch ring 26 is axially slidably sleeved on the connecting seat 24 . A guide mechanism is provided between the clutch ring 26 and the connecting seat 24 . The guide mechanism keeps the clutch ring 26 and the connecting seat 24 circumferentially fixed and guides the clutch ring 26 to slide axially.

[0078] See also Figure 3 The guide mechanism includes an axial groove formed on the side of the connecting seat 24 facing the clutch ring 26, an axially extending guide post 243 disposed within the axial groove, a lug provided on the inner wall of the clutch ring 26 corresponding to the axial groove, and a guide hole formed on the lug corresponding to the guide post 243. The guide hole is slidably connected to the guide post 243, resulting in a compact guide mechanism. Optionally, two guide posts 243 are provided, and the two guide posts 243 are symmetrically arranged, with the axial grooves, lugs, and guide posts 243 corresponding to each other.

[0079] See also Figure 3 The guide mechanism also includes a shallow groove 246 formed on the periphery of the connecting seat 24 facing the clutch ring 26, and a shallow protrusion 266 corresponding to the shallow groove 246 is provided on the inner wall of the clutch ring 26 and is suitable for being embedded in the shallow groove.

[0080] See also Figures 3 to 5The biasing member is usually a compression spring 261 sleeved on the guide post 243. One end of the compression spring 261 abuts the side of the lug facing away from the bottom of the axial groove, and the other end acts on the connecting seat 24 through a pressure plate 262 fixed at the notch of the axial groove. The compression spring 261 applies a biasing force to the clutch ring 26 toward the transmission ring gear 27. Under normal conditions, the second clutch protrusion 264 on the clutch ring 26 engages with the second clutch groove 271 on the transmission ring gear 27, so that the clutch ring 26 and the transmission ring gear 27 remain circumferentially fixed. The clutch ring 26 can move axially a certain distance relative to the connecting seat 24, but cannot rotate relative to the connecting seat 24. Figure 3 A second mounting hole 244 is provided on the connecting seat, and the fifth fastener 263 passes through the pressing piece and the second mounting hole 244.

[0081] See also Figure 13 and Figure 14 The push ring 232 is axially slidably mounted on the inner wall of the inner handle housing 22; the sliding ring 23 is axially slidably sleeved on the outer wall of the corresponding portion of the inner handle housing 22; an axially extending push groove is formed on the housing of the corresponding portion of the inner handle housing 22, and a corresponding embedded groove is formed on the corresponding sliding ring 23; a first connecting block 231 having a protruding portion is fixed to the push ring 232 by the protruding end of the protruding portion through the embedded groove of the sliding ring 23 and the push groove of the inner handle housing 22, thereby connecting the first connecting block 231, the sliding ring 23, and the push ring 232 together. Axially pushing the first connecting block 231 outside the outer shell of the inner handle housing 22 can drive the sliding ring 23 and the push ring 232 to move synchronously, facilitating operation. The provision of the push groove allows the sliding ring 23 to axially move a certain distance relative to the inner handle housing 22. Since the protruding portion on the first connecting block 231 is embedded in the push groove, the sliding ring 23 and the inner handle housing 22 remain circumferentially fixed.

[0082] See also Figure 13 An outer edge of one end of the pushing ring 232 is provided with an embedding groove suitable for the protruding end of the protrusion to be embedded. The protruding end of the protrusion embedded in the embedding groove is fixed to the pushing ring 232 through a third fastener 234, so that the third fastener 234 is located within the outline of the pushing ring 232, and the structure is compact.

[0083] See also Figure 11 and Figure 12 The inner handle shell includes an inner handle outer shell 22 and an inner handle bottom cover 21. The inner handle outer shell 22 opens toward one side of the main lock head 3, and the inner handle bottom cover 21 is installed on the opening; see Figure 18The inner handle bottom cover 21 is fixedly connected to the outer end of the inner lock sleeve, and a rotation connection mechanism is provided between the inner handle bottom cover 21 and the inner handle outer shell 22. The rotation connection mechanism allows the inner handle bottom cover 21 to be rotatably and axially fixedly provided on the inner handle outer shell 22. If the inner handle cover is directly connected to the end of the inner lock sleeve, the holding torque to prevent the inner handle assembly 2 from generating a torsional force perpendicular to its rotation axis 32 due to manual operation will be relatively small, and after a period of use, the inner handle assembly 2 will shake relative to the main lock head 3. In order to increase the holding torque, the present invention fixes the inner handle cover to the main lock head 3, and provides a rotation connection mechanism between the inner handle bottom cover 21 and the inner handle outer shell 22. See Figure 18 A fifth mounting hole 311 is provided on the outer end of the inner locking sleeve, and the inner handle bottom cover 21 is fixed to the outer end of the inner locking sleeve by a first fastener 211.

[0084] See also Figure 11 and Figure 12 The rotating connection mechanism includes a mounting groove formed on the side of the inner handle bottom cover 21 facing the inner lock sleeve and recessed away from the inner lock sleeve, a plurality of ball mounting holes 215 radially passing through the inner handle bottom cover 21 in the circumferential direction of the groove body of the mounting groove, locking balls 213 arranged in the ball mounting holes 215, and a bottom cover pressing block 212 fixedly embedded in the mounting groove and abutting against each locking ball 213; the bottom cover pressing block 212 abuts against the locking ball 213 so that part of it radially protrudes out of the ball mounting hole 215; the rotating connection mechanism also includes an annular clamping edge 221 provided on the inner wall of the opening of the inner handle shell 22, and the part of the ball radially protruding out of the ball mounting hole 215 is suitable for being clamped in the annular clamping edge 221, so that the inner handle shell 22 and the inner handle bottom cover 21 can rotate relative to each other but cannot move axially relative to each other.

[0085] Alternatively, see Figure 11 The annular card edge 221 is formed on a card edge molding fixed on the inner wall of the opening of the inner handle shell 22.

[0086] Alternatively, see Figure 11 The bottom cover pressing block 212 is an integrally formed component and is integrally fixed to the inner handle bottom cover 21 by a second fastener 214 .

[0087] See also Figure 13 and Figure 14 The normally separated biasing member is a normally separated compression spring 261 provided between the card edge molding and the pushing ring 232. The normally separated compression spring 261 applies a biasing force toward the pushing ring 232, which is directed away from the clutch ring 26, so that the pushing ring 232 and the clutch ring 26 are kept circumferentially separated under normal conditions. Figure 14, push the sliding ring 23 to the left, so that the pushing ring 232 compresses the normally separated compression spring 261 to the left, so that the pushing ring 232 is combined with the clutch ring 26 to keep the two circumferentially fixed; after the thrust is released, the normally separated compression spring 261 is reset to reset the pushing ring 232.

[0088] See also Figures 3 to 5 Under the biasing force of the normal separation spring 233, the first clutch protrusion 2321 and the first clutch groove 265 are separated from each other. Figure 4 Under the biasing force of the compression spring 261, the second clutch protrusion 264 is embedded in the second clutch groove 271. When the transmission ring gear 27 rotates, it can drive the clutch ring 26 and the connecting seat 24 to rotate synchronously. The connecting seat 24 then drives the rotating shaft 32 to rotate. Figure 5 When the push ring 232 is pushed leftward, the second clutch groove 271 on the transmission ring gear 27 disengages from the second clutch protrusion 264 on the clutch ring 26. Simultaneously, the first clutch protrusion 2321 on the push ring 232 engages with the first clutch groove 265 on the clutch ring 26. Rotating the push ring 232 drives the clutch ring 26, the connecting seat 24, and the rotating shaft 32 to rotate synchronously, achieving manual unlocking from the door side. The connecting seat 24 and the transmission ring gear 27 are connected by a third bearing 245.

[0089] See also Figure 6 and Figure 7 The unlocking drive mechanism is an electric motor, and an output gear 291 is provided at the output end of the motor. The transmission ring gear 27 is an internal gear ring, and the output gear 291 is meshed with the transmission ring gear 27.

[0090] See also Figure 2 The electric control component 29 with the unlocking drive mechanism is arranged on the outer end of the inner locking sleeve through the inner transmission core 33 fixedly arranged relative to the inner locking sleeve.

[0091] See also Figure 2 、 Figures 6 to 8 、 Figure 15 and Figure 16 The end of the inner transmission core 33 near the outer end of the inner locking sleeve is circumferentially fixedly connected to the inner connecting block 25 via a non-circular plug-in structure. The other end of the inner connecting block 25 is connected to the electronic control assembly 29. The inner connecting block 25 and the rotating shaft 32 are connected by a first bearing 252. The inner connecting block 25 and the connecting seat 24 are connected by a second bearing 251. The rotating shaft 32 and the connecting seat 24 are fixedly connected by a fourth fastener 241. An axial limit flange 254 is provided on the inner connecting block 25 between the rotating shaft 32 and the connecting seat 24 to limit the axial movement of the inner connecting block 25, allowing the inner connecting block 25 and the connecting seat 24 to rotate relative to each other. The connecting seat 24 is provided with a first mounting hole 242, and the fourth fastener 241 is inserted through the first mounting hole and the rotating shaft 32.

[0092] See also Figure 6and Figure 7 The inner handle assembly 2 also includes an electric control assembly mounting bracket 28, which is fixedly connected to the electric control assembly 29. The inner connecting block 25 is fixedly connected to the electric control assembly mounting bracket 28 at one end facing the transmission ring gear 27. A third mounting hole 253 is defined on the inner connecting block 25, and a fourth mounting hole 281 is defined on the electric control assembly mounting bracket 28. A sixth fastener 282 passes through the electric control assembly mounting bracket 28 and the third mounting hole 253 to securely connect the inner connecting block 25 to the electric control assembly mounting bracket 28. A seventh fastener 292 passes through the electric control assembly 29 and the fourth mounting hole 281 to securely connect the electric control assembly mounting bracket 28 to the electric control assembly 29.

[0093] See also Figure 2 and Figure 17 The outer handle assembly 1 includes a barrel-shaped outer handle and an outer handle bottom cover 11. The outer handle bottom cover 11 is fixedly mounted on the open end of the outer handle housing near the main lock 3. The main lock 3 is provided with a fitting protrusion 31 at one end, and a fitting groove 111 is provided on the outer handle bottom cover 11. The fitting protrusion 31 cooperates with the fitting groove 111 to fix the main lock 3 to the outer handle assembly 1 in a non-rotatable manner.

[0094] The rotating shaft 32 and the dial wheel 35 are connected by a concave-convex interlocking structure so that the two remain circumferentially fixed. Figure 2 An annular groove 321 is provided on the rotating shaft, and the limit pin 36 passes through the inner lock sleeve wall and extends into the annular groove 321 to axially limit the rotating shaft 32, so that the rotating shaft 32 can rotate in the inner cavity of the main lock head 3, but cannot move axially.

[0095] See also Figure 8 The outer handle assembly 1, the main lock head 3 housing, the inner transmission core 33, the inner connecting block 25, the electronic control assembly mounting bracket 28, and the electronic control assembly 29 are connected with a non-circular structure and cannot rotate relative to each other.

[0096] See also Figure 9 The transmission ring gear 27 is combined with the clutch ring 26 to maintain circumferential fixity. The dial 35, the rotating shaft 32, the connecting seat 24, and the clutch ring 26 are connected in a non-circular structure and cannot rotate relative to each other. When the transmission ring gear 27 rotates, it drives the clutch ring 26, the connecting seat 24, the rotating shaft 32 and the dial 35 to rotate synchronously, realizing electric intelligent unlocking.

[0097] See also Figure 10 , push the pushing ring 232, the pushing ring 232 drives the first connecting block 231 and the pushing ring 232 to slide together, so that the pushing ring 232 is combined with the clutch ring 26 to keep the two circumferentially fixed, the clutch ring 26 is disengaged from the transmission gear ring 27, and the inner handle housing 22 is rotated to drive the sliding ring 23, the pushing ring 232, the clutch ring 26, the connecting seat 24, the rotating shaft 32 and the dial wheel 35 to rotate, thereby realizing manual unlocking.

[0098] The process of electric opening and closing of the smart lock is as follows: when the outer handle component 1 collects key information such as fingerprint, password, card, etc., the information is transmitted to the inner handle component 2, and after being processed by the electronic control component 29, an electrical signal is given to cause the output gear 291 to rotate, and the output gear 291 then drives the transmission ring gear 27 to rotate; under normal circumstances, the transmission ring gear 27 and the clutch ring 26 are in an engaged state, so the transmission ring gear 27 will drive the clutch ring 26 to rotate synchronously, that is, to achieve Figure 14 The connection transmission is shown, and the rotation of the dial wheel 35 can realize the opening and closing lock action of the lock body.

[0099] The process of manually opening and closing the inner handle is as follows: pushing the sliding ring 23 causes the pushing ring 232 to move axially, so that the pushing ring 232 can be engaged with the clutch ring 26, and the clutch ring 26 can be disengaged from the transmission gear ring 27. Then, rotating the inner handle housing 22 can drive the sliding ring 23, the pushing ring 232, the clutch ring 26, the rotating shaft 32, and the dial wheel 35 to rotate together. Figure 15 Connect the drive as shown.

[0100] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A smart lock, characterized in that: include: A main lock head (3) has an outer lock sleeve and an inner lock sleeve, and a dial wheel (35) is provided between the inner lock sleeve and the outer lock sleeve; A rotating shaft (32) is axially fixed and rotatably arranged in the inner locking sleeve, and the rotating shaft (32) is coaxial with the thumbwheel (35) and circumferentially fixedly connected; An outer handle assembly (1) is mounted on the outer end of the outer lock sleeve, and an information collection module is provided on the outer handle assembly (1); An inner handle assembly (2) is mounted on the outer end of the inner lock sleeve, the inner handle assembly (2) comprises an inner handle shell at least partially rotatably mounted on the inner lock sleeve, and an electric control assembly (29) arranged therein, the information acquisition module being electrically connected to the electric control assembly (29); the electric control assembly (29) comprises an unlocking drive mechanism fixedly arranged relative to the inner lock sleeve, the output end of the unlocking drive mechanism and the inner handle shell being connected to the rotating shaft (32) via a transmission clutch mechanism, and the transmission clutch mechanism switching the connection between the rotating shaft (32) and the unlocking drive mechanism or the inner handle shell.

2. The smart lock according to claim 1, characterized in that: The transmission clutch mechanism comprises: A clutch member is circumferentially fixedly connected to the rotating shaft (32); A transmission member is movably connected relative to the clutch member and is driven by the output end of the unlocking drive mechanism to rotate around the rotating shaft (32); a second clutch mechanism is provided between the transmission member and the clutch member, and the second clutch mechanism is in a normally engaged state; The pushing member is fixedly mounted on the inner handle shell at least circumferentially, and is connected to the clutch member and the transmission member for relative movement. A first clutch mechanism is provided between the pushing member and the clutch member, and the first clutch mechanism is in a normally separated state. By moving the pushing member relative to the clutch member, the first clutch mechanism between the pushing member and the clutch member switches from a disengaged state in which they are circumferentially disengaged from each other to a circumferentially relatively fixed coupled state. Further moving the pushing member drives the relative movement between the clutch member and the transmission member, thereby switching the second clutch mechanism between the clutch member and the pushing member from a circumferentially relatively fixed coupled state to a circumferentially disengaged state.

3. The smart lock according to claim 2, characterized in that: The transmission clutch mechanism further comprises a connecting seat (24) coaxially fixedly connected to the rotating shaft (32); the clutch member is a clutch ring (26) axially slidable and circumferentially fixedly connected to the connecting seat (24); the transmission member is a transmission gear ring (27) axially relatively fixedly connected to the connecting seat (24); and the pushing member is a pushing ring (232) axially slidably sleeved on the clutch ring (26).

4. The smart lock according to claim 3, characterized in that: The first clutch mechanism is provided with a normally separated biasing member for maintaining a normally separated state; and / or the second clutch mechanism is provided with a normally engaged biasing member for maintaining a normally engaged state.

5. The smart lock according to claim 4, characterized in that: The first clutch mechanism includes a first clutch engagement structure provided between the clutch ring (26) and the driving ring (232); the second clutch mechanism includes a second clutch engagement structure provided between the clutch ring (26) and the transmission gear ring (27).

6. The smart lock according to claim 5, characterized in that: The first clutch engagement structure comprises a first clutch protrusion (2321) provided on the pushing ring (232) and a first clutch groove (265) provided on the clutch ring (26); The second clutch engagement structure comprises a second clutch groove (271) provided on the transmission gear ring (27) and a second clutch protrusion (264) provided on the clutch ring (26).

7. The smart lock according to claim 6, characterized in that: The clutch ring (26) can be axially slidably sleeved outside the connecting seat (24), and a guide mechanism is provided between the clutch ring (26) and the connecting seat (24). The guide mechanism keeps the clutch ring (26) and the connecting seat (24) circumferentially fixed.

8. The smart lock according to claim 7, characterized in that: The guide mechanism comprises an axial groove formed on the side of the connecting seat (24) facing the clutch ring (26), an axially extending guide column (243) arranged in the axial groove, a lug corresponding to the axial groove and arranged on the inner wall of the clutch ring (26), and a guide hole formed on the lug corresponding to the guide column (243), wherein the guide hole is slidably sleeved on the guide column (243).

9. The smart lock according to claim 8, characterized in that: The guide mechanism further includes a shallow groove (246) formed on the peripheral edge of the connecting seat (24) on the side facing the clutch ring (26), and a shallow protrusion (266) corresponding to the shallow groove (246) and provided on the inner wall of the clutch ring (26) and suitable for being embedded in the shallow groove.

10. The smart lock according to claim 8 or 9, characterized in that: The normally coupled biasing member is a compression spring (261) sleeved on the guide column (243), one end of the compression spring (261) abuts against the side of the lug facing away from the bottom of the axial groove, and the other end acts on the connecting seat (24) through a compression plate (262) fixed at the notch of the axial groove; the compression spring (261) applies a biasing force on the clutch ring (26) toward the transmission gear ring (27).

11. The smart lock according to claim 5, characterized in that: The inner handle shell comprises an inner handle outer shell (22) and an inner handle bottom cover (21), the inner handle outer shell (22) is opened on one side toward the main lock head (3), and the inner handle bottom cover (21) is mounted on the opening; The inner handle bottom cover (21) is fixedly connected to the outer end of the inner lock sleeve, and a rotation connection mechanism is provided between the inner handle bottom cover (21) and the inner handle outer shell (22). The rotation connection mechanism rotatably and axially fixedly arranges the inner handle bottom cover (21) on the inner handle outer shell (22).

12. The smart lock according to claim 11, characterized in that: The pushing ring (232) can be axially slidably mounted on the inner wall of the inner handle shell (22); a sliding ring (23) can be axially slidably sleeved on the outer wall of the corresponding part of the inner handle shell (22); an axially extending pushing groove is formed on the shell of the corresponding part of the inner handle shell (22), and a corresponding embedding groove is formed on the corresponding sliding ring (23); a first connecting block (231) with a protruding portion is fixed to the pushing ring (232) by passing the protruding portion through the embedding groove on the sliding ring (23) and the pushing groove on the inner handle shell (22).

13. The smart lock according to claim 12, characterized in that: An outer edge of one end of the pushing ring (232) is provided with an embedding groove suitable for embedding the protruding end of the protruding portion, and the protruding end of the protruding portion embedded in the embedding groove is fixed to the pushing ring (232) via a third fastener (234).

14. The smart lock according to claim 11, characterized in that: The rotation connection mechanism comprises a mounting groove formed on a side of the inner handle bottom cover (21) facing the inner locking sleeve and recessed away from the inner locking sleeve, a plurality of ball mounting holes (215) radially passing through the inner handle bottom cover (21) in the circumferential direction of the groove body of the mounting groove, locking balls (213) arranged in the ball mounting holes (215), and a bottom cover pressing block (212) fixedly embedded in the mounting groove and abutting against each of the locking balls (213); the bottom cover pressing block (212) abuts against the locking balls (213) so that a portion of the bottom cover pressing block radially protrudes out of the ball mounting hole (215); The rotary connection mechanism further comprises an annular clamping edge (221) provided on the inner wall of the opening of the inner handle shell (22), and the portion of the ball radially protruding from the ball mounting hole (215) is suitable for being clamped in the annular clamping edge (221).

15. The smart lock according to claim 14, characterized in that: The annular card edge (221) is formed on a card edge forming piece fixed on the inner wall of the opening of the inner handle shell (22).

16. The smart lock according to claim 14, characterized in that: The bottom cover pressing block (212) is an integrally formed component and is integrally fixed to the inner handle bottom cover (21) via a second fastener (214).

17. The smart lock according to claim 15, characterized in that: The normally separated biasing member is a normally separated compression spring (261) provided between the card edge forming member and the pushing ring (232), and the normally separated compression spring (261) applies a biasing force toward the pushing ring (232) and away from the clutch ring (26).

18. The smart lock according to claim 3, characterized in that: The unlocking drive mechanism is an electric motor, an output gear (291) is provided at the output end of the electric motor, the transmission gear ring (27) is an internal gear ring, and the output gear (291) is meshed with the transmission gear ring (27).

19. The smart lock according to claim 3, characterized in that: The electric control component (29) having the unlocking drive mechanism is arranged on the outer end of the inner locking sleeve via an inner transmission core (33) fixedly arranged relative to the inner locking sleeve.

20. The smart lock according to claim 19, characterized in that: The end of the inner transmission core (33) close to the outer end of the inner locking sleeve is circumferentially fixedly connected to the inner connecting block (25) through a non-circular plug-in structure, and the other end of the inner connecting block (25) is connected to the electronic control component (29); the inner connecting block (25) and the rotating shaft (32) are connected by a first bearing (252); the inner connecting block (25) and the connecting seat (24) are connected by a second bearing (251); the rotating shaft (32) and the connecting seat (24) are fixedly connected by a fourth fastener (241); an axial limiting flange (254) is provided on the inner connecting block (25) between the rotating shaft (32) and the connecting seat (24).

21. The smart lock according to claim 20, characterized in that: The inner handle assembly (2) further comprises an electric control assembly mounting frame (28), wherein the electric control assembly mounting frame (28) is fixedly connected to the electric control assembly (29), and one end of the inner connecting block (25) facing the transmission gear ring (27) is fixedly connected to the electric control assembly mounting frame (28).

Images