A smart door lock

Abstract

This invention provides an intelligent door lock, comprising: a motor assembly including a motor housing and a drive motor disposed within the motor housing; a lock body disposed parallel to and spaced apart from the housing; a square bar connected between the motor housing and the lock body; and a lock cylinder connected to the lock body, with the square bar and lock cylinder arranged side-by-side along the motor housing; the motor housing includes a square bar output gear rotatably mounted on the motor housing and a square body coaxially disposed with the square bar output gear, the square bar and the square body being fixedly connected, and the square bar output gear being detachably connected to the square body via a first clutch assembly; the motor housing also includes a lock cylinder output gear rotatably mounted on the motor housing, and the lock cylinder output gear being detachably connected to the lock cylinder via a second clutch assembly; the drive motor simultaneously drives the square bar output gear and the lock cylinder output gear to rotate, the first clutch assembly being connected to the square body, or the second clutch assembly being connected to the lock cylinder, so that the drive motor selectively drives either the square bar or the lock cylinder to rotate the lock body.

Description

Technical Field

[0001] This invention relates to the field of smart home devices, and in particular to a smart door lock. Background Technology

[0002] In some existing smart locks, a rear-drive motor drives a flat iron extending from the rear-drive lock cylinder to move the lock cylinder dial for unlocking. This unlocking method requires the motor to rotate a large angle during unlocking, resulting in a long unlocking time and affecting the motor's lifespan. Furthermore, the motor's first-stage output typically uses a worm gear drive structure, which has a self-locking function and cannot reverse drive. Therefore, if the motor is damaged, the knob cannot reverse drive the motor to unlock, rendering the lock unable to open.

[0003] Some smart locks use a rear-drive motor to drive a square bar, which connects to the lock body to unlock. This unlocking method uses a DC motor, and repeated forward and reverse rotation accelerates the wear of the internal commutator, reducing the motor's lifespan. Furthermore, the square bar unlocking requires significant torque, especially when the lock body is connected to the deadbolt and secondary lock, where the torque requirement is even greater. This means the motor's output torque may not be sufficient to open the lock, leading to increased manufacturing costs. Summary of the Invention

[0004] To address the above technical issues, this invention provides an intelligent door lock that is compatible with both square bar unlocking and rear-drive lock cylinder unlocking methods.

[0005] In one embodiment, a smart door lock is provided, comprising:

[0006] A motor assembly, the motor assembly including a motor housing and a drive motor disposed within the motor housing;

[0007] A lock body, wherein the lock body is arranged parallel to and spaced apart from the housing;

[0008] A square bar, the square bar connecting the motor housing and the lock body; and

[0009] A lock cylinder is connected to the lock body, and the square bar is arranged side by side with the lock cylinder along the motor housing;

[0010] The motor housing includes a square bar output gear rotatably mounted on the motor housing and a square body coaxially arranged with the square bar output gear. The square bar and the square body are fixedly connected, and the square bar output gear is detachably connected to the square body via a first clutch assembly.

[0011] The motor housing includes a lock cylinder output gear rotatably mounted on the motor housing, and the lock cylinder output gear is detachably connected to the lock cylinder via a second clutch assembly;

[0012] The drive motor simultaneously drives the square bar output gear and the lock cylinder output gear to rotate. The first clutch assembly is connected to the square bar, or the second clutch assembly is connected to the lock cylinder, so that the drive motor selectively drives either the square bar or the lock cylinder to rotate the lock body.

[0013] In one embodiment, the motor housing includes a motor bottom shell facing the lock body, the motor bottom shell having a first through hole for the square bar to pass through and a second through hole for the second clutch assembly to pass through;

[0014] The motor housing includes a first gear shaft and a second gear shaft mounted on the inner surface of the motor bottom housing, wherein the square bar output gear is rotatably supported on the first gear shaft, and the lock cylinder output gear is rotatably supported on the second gear shaft;

[0015] Both the first gear shaft and the second gear shaft are perpendicular to the inner surface of the motor base.

[0016] In one embodiment, it includes:

[0017] The first gear set, wherein the drive motor meshes with the first gear set to drive the square bar output gear or the lock cylinder output gear via the first gear set;

[0018] The output shaft of the drive motor extends along a direction parallel to the inner surface of the motor base and has a motor gear sleeved on the output shaft.

[0019] The first gear set includes at least a first gear rotatably supported on a third gear shaft, the third gear shaft being mounted on the inner surface of the motor housing and extending in a direction perpendicular to the inner surface of the motor housing;

[0020] The periphery of the motor gear meshes with the face teeth of the first gear.

[0021] In one embodiment, the first gear set meshes with the lock cylinder output gear to transmit rotational torque from the output shaft of the drive motor to the lock cylinder output gear;

[0022] The second gear shaft is located between the first gear shaft and the drive motor.

[0023] In one embodiment, it includes:

[0024] The second gear set meshes with the square bar output gear and the lock cylinder output gear, so that the drive motor simultaneously drives the square bar output gear and the lock cylinder output gear to rotate.

[0025] The second gear set is located between the first gear shaft and the second gear shaft.

[0026] In one embodiment, the cube includes:

[0027] A square shaft is rotatably supported on the first gear shaft. The square shaft is coaxially arranged with the square bar output gear. The square shaft has a square hole corresponding to the square body and is exposed in the first through hole.

[0028] A square plate extends radially outward from the square shaft and fits against the square bar output gear.

[0029] In one embodiment, the square bar output gear has an arc-shaped groove;

[0030] The first clutch assembly is a fastener that connects to the square piece via the arc groove. The square bar output gear drives the square piece to rotate synchronously through the interference between the end of the arc groove and the first clutch assembly.

[0031] In one embodiment, the two ends of the arc-shaped groove correspond to the unlocked and locked positions of the square bar.

[0032] In one embodiment, the second clutch assembly is a connecting rod connected between the lock cylinder and the lock cylinder output gear, and the second clutch assembly has a non-circular cross-sectional shape.

[0033] In one embodiment, the lock cylinder includes:

[0034] A lock cylinder body, the lock cylinder body being embedded in the lock body, and a second clutch assembly being connected to the side of the lock cylinder body facing the motor housing;

[0035] A lever, which rotates around the central axis of the lock cylinder body under the drive of the second clutch assembly, and protrudes radially from the surface of the lock cylinder body;

[0036] The lock cylinder drives the lock body to rotate via the toggle block.

[0037] As can be seen from the above technical solutions, the smart door lock of this embodiment is compatible with both square bar unlocking and rear-drive lock cylinder unlocking. In terms of hardware structure, square bar 30 and lock cylinder 40 are installed at the same time, and the drive motor 12 can simultaneously drive the square bar output gear 51 for driving the square bar 30 to rotate and the lock cylinder output gear 52 for driving the lock cylinder 40 to rotate. In this way, by selectively installing the first clutch assembly 61 or the second clutch assembly 62, the drive motor 12 can selectively drive the square bar 30 or the lock cylinder 40 to drive the lock body 20 to rotate.

[0038] The smart door lock of this embodiment can select the unlocking drive mode for the lock body 20 according to the actual usage situation. The selection of the unlocking mode can be achieved by installing only one of the first clutch component 61 and the second clutch component 62, without replacing the entire door lock. This allows the most suitable unlocking mode to be selected according to the actual usage situation, and also reduces the modification cost and time cost.

[0039] Furthermore, since the drive motor 12 can simultaneously drive the square bar output gear 51 for rotating the square bar 30 and the lock cylinder output gear 52 for rotating the lock cylinder 40, when changing the unlocking method of the lock body, only the clutch assembly needs to be installed in place, without any other operations. Therefore, it is convenient for users to replace it themselves, without the need for professional installers to operate on-site, which can save a lot of manpower and material costs. Attached Figure Description

[0040] The following figures are for illustrative purposes only and do not limit the scope of the invention.

[0041] Figure 1 This is a structural schematic diagram of the first embodiment of the smart door lock of the present invention.

[0042] Figure 2 This is a schematic diagram of the motor assembly in the smart door lock of the present invention.

[0043] Figure 3 This is a schematic diagram of the motor assembly in the smart door lock of the present invention in a first direction.

[0044] Figure 4 This is a schematic diagram of the motor assembly in the smart door lock of the present invention from a second direction.

[0045] Figure 5 This is a schematic diagram of the motor assembly in the second embodiment of the smart door lock of the present invention.

[0046] Figure 6 This is a structural schematic diagram of the second embodiment of the smart door lock of the present invention. Detailed Implementation

[0047] To provide a clearer understanding of the technical features, objectives, and effects of the invention, specific embodiments of the invention are now described with reference to the accompanying drawings, in which the same reference numerals denote the same parts.

[0048] In this document, “illustrative” means “serving as an example, illustration or description”, and any illustration or implementation described herein as “illustrative” should not be construed as a more preferred or advantageous technical solution.

[0049] To keep the drawings concise, only the parts relevant to the invention are shown in each figure, and do not represent the actual structure of the product. Furthermore, to facilitate understanding, in some figures, only one of the components with the same structure or function is shown schematically, or only one is labeled.

[0050] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0051] In this article, "first," "second," etc., are used only to distinguish one another, and not to indicate degree of importance, order, or prerequisite for each other.

[0052] In this document, terms such as "equal" and "same" are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use. Unless otherwise stated, numerical ranges in this document include not only the entire range within its two endpoints, but also several subranges contained therein.

[0053] The exemplary embodiments will now be described more fully with reference to the accompanying drawings.

[0054] To address the problems in the existing technology, this invention provides an intelligent door lock that is compatible with both square bar unlocking and rear-drive lock cylinder unlocking methods.

[0055] like Figures 1 to 4 As shown, one embodiment of the present invention provides a smart door lock, comprising:

[0056] Motor assembly 10, which includes motor housing 11 and drive motor 12 disposed within motor housing 11;

[0057] Lock body 20, which is arranged parallel and spaced apart from housing 11;

[0058] Square bar 30, square bar 30 is connected between motor housing 11 and lock body 20; and

[0059] Lock cylinder 40 is connected to lock body 20; square bar 30 and lock cylinder 40 are arranged side by side along motor housing 11.

[0060] The motor housing 11 includes a square bar output gear 51 rotatably mounted on the motor housing 11 and a square body 31 coaxially arranged with the square bar output gear 51. The square bar 30 is fixedly connected to the square body 31, and the square bar output gear 51 is detachably connected to the square body 31 via a first clutch assembly 61.

[0061] The motor housing 11 includes a lock cylinder output gear 52 rotatably mounted on the motor housing 11, and the lock cylinder output gear 52 is detachably connected to the lock cylinder 40 via a second clutch assembly 62;

[0062] The drive motor 12 simultaneously drives the square bar output gear 51 and the lock cylinder output gear 52 to rotate. The first clutch assembly 61 is connected to the square body 31, or the second clutch assembly 62 is connected to the lock cylinder 40, so that the drive motor 12 selectively drives either the square bar 30 or the lock cylinder 40 to rotate the lock body 20.

[0063] The smart door lock of this embodiment is compatible with both square bar unlocking and rear-drive lock cylinder unlocking. In terms of hardware structure, a square bar 30 and a lock cylinder 40 are installed at the same time. The drive motor 12 can simultaneously drive the square bar output gear 51 for rotating the square bar 30 and the lock cylinder output gear 52 for rotating the lock cylinder 40. By selectively installing either the first clutch assembly 61 or the second clutch assembly 62, the drive motor 12 can selectively drive either the square bar 30 or the lock cylinder 40 to rotate the lock body 20.

[0064] The smart door lock of this embodiment can select the unlocking drive mode for the lock body 20 according to the actual usage situation. The selection of the unlocking mode can be achieved by installing only one of the first clutch component 61 and the second clutch component 62, without replacing the entire door lock. This allows the most suitable unlocking mode to be selected according to the actual usage situation, and also reduces the modification cost and time cost.

[0065] Furthermore, since the drive motor 12 can simultaneously drive the square bar output gear 51 for rotating the square bar 30 and the lock cylinder output gear 52 for rotating the lock cylinder 40, when changing the unlocking method of the lock body, only the clutch assembly needs to be installed in place, without any other operations. Therefore, it is convenient for users to replace it themselves, without the need for professional installers to operate on-site, which can save a lot of manpower and material costs.

[0066] Therefore, in the smart lock of this embodiment, the first clutch assembly 61 and the second clutch assembly 62 are selectively installed in the smart lock, and the unlocking method of this embodiment is also changed accordingly based on the choice of clutch assembly. Specifically, when the first clutch assembly 61 connects the square bar output gear 51 and the square body 31 into one unit, the second clutch assembly 62 is not installed in the smart lock. In this case, the lock cylinder 40 is only connected to the lock body 20 and separated from the lock cylinder output gear 52. Correspondingly, the rotation of the drive motor 12 can only drive the lock body 20 to rotate via the square bar 30, thereby realizing the unlocking and locking of the lock body 20. At this time, the smart lock has the advantages of quick unlocking action and the ability to achieve reverse drive. Optionally, when the second clutch assembly 62 connects the lock cylinder 40 and the lock cylinder output gear 52 into one unit, the first clutch assembly 61 is not installed in the smart door lock. In this case, the square bar output gear 51 and the square body 31 are separated. Correspondingly, the rotation of the drive motor 12 can only drive the lock body 20 to rotate through the lock cylinder 40, thereby realizing the unlocking and locking of the lock body 20. At this time, the smart door lock has the advantages of low torque requirement and bidirectional rotation.

[0067] Among them, such as Figure 2 As shown, the motor housing 11 includes a motor bottom shell 111 facing the lock body 20. The motor bottom shell 111 has a first through hole 112 for the square bar 30 to pass through and a second through hole 113 for the second clutch assembly 62 to pass through.

[0068] The motor housing 11 includes a first gear shaft and a second gear shaft mounted on the inner surface of the motor bottom housing 111, wherein the square bar output gear 51 is rotatably supported on the first gear shaft, and the lock cylinder output gear 52 is rotatably supported on the second gear shaft;

[0069] Both the first gear shaft and the second gear shaft are perpendicular to the inner surface of the motor base 111.

[0070] Specifically, in one embodiment, the smart lock includes:

[0071] The first gear set 70 is driven by the drive motor 12, which meshes with the first gear set 70 to drive the square bar output gear 51 or the lock cylinder output gear 52 via the first gear set 70.

[0072] The output shaft of the drive motor 12 extends along a direction parallel to the inner surface of the motor housing 111 and has a motor gear 121 sleeved on the output shaft;

[0073] The first gear set 70 includes at least a first gear 71 rotatably supported on a third gear shaft, the third gear shaft being mounted on the inner surface of the motor housing 111 and extending in a direction perpendicular to the inner surface of the motor housing 111.

[0074] The periphery of the motor gear 121 meshes with the face teeth of the first gear 71.

[0075] In this embodiment, both the first gear 71 and the motor gear 121 are cylindrical gears. The teeth of the motor gear 121 are formed on the side wall surface of the cylinder, while the teeth of the first gear 71 are formed on the top or bottom surface of the cylinder. Thus, the engagement of the first gear 71 and the motor gear 121 forms a meshing engagement of spur teeth and surface teeth. This engagement method achieves both high transmission efficiency and increased output torque, thereby simultaneously improving the performance of both square bar unlocking and lock cylinder unlocking methods. Because this embodiment selects a structure compatible with both unlocking methods, the first-stage output structure of the drive motor needs to be a transmission structure suitable for both unlocking methods.

[0076] It is understood that the first gear set 70 also includes one or more other gears that mesh with the first gear 71 to output the rotational driving force output by the drive motor 12 to the square bar output gear 51 or the lock cylinder output gear 52.

[0077] In one embodiment, the first gear set 70 meshes with the lock cylinder output gear 52 to transmit the rotational torque from the output shaft of the drive motor 12 to the lock cylinder output gear 52.

[0078] The second gear shaft is located between the first gear shaft and the drive motor 12.

[0079] In other words, the drive motor 12 directly drives the lock cylinder output gear 52 through the first gear set 70, and then transmits the rotational power of the lock cylinder output gear 52 to the square bar output gear 51. The drive motor 12 is located at one end of the motor housing 11, which is determined by the torque and rotation time required for the two unlocking methods. The lock cylinder unlocking method requires a long unlocking time, so it is necessary to shorten the distance between it and the drive motor. The square bar unlocking method requires a larger torque, which can be increased through the engagement of multiple gears to improve the torque transmitted to the square bar output gear 51, thus increasing the distance between the square bar output gear 51 and the drive motor 12.

[0080] Furthermore, including:

[0081] The second gear set 80 meshes with the square bar output gear 51 and the lock cylinder output gear 52, so that the drive motor 12 simultaneously drives the square bar output gear 51 and the lock cylinder output gear 52 to rotate.

[0082] The second gear set 80 is located between the first gear shaft and the second gear shaft.

[0083] The second gear set 80 may include one or more gears for adjusting the speed ratio between the output shaft of the drive motor 12 and the square bar output gear 51, and the torque transmitted to the square bar output gear 51. Typically, the second gear set 80 should contain an even number of gears to achieve the effect of co-rotation of the square bar 30 and the lock cylinder 40. The second gear set 80 is rotatably supported by a second gear set shaft 81, which is located on the inner surface of the motor base housing 111.

[0084] In one embodiment, the cube 31 includes:

[0085] The square shaft 311 is rotatably supported on the first gear shaft. The square shaft 311 is coaxially arranged with the square bar output gear 51. The square shaft 311 has a square hole corresponding to the square body 31. The square shaft 311 is exposed to the first through hole 112.

[0086] The square plate 312 extends radially outward from the square shaft 311 and fits against the square bar output gear 51.

[0087] Among them, the square bar output gear 51 has an arc-shaped groove 511;

[0088] The first clutch assembly 61 is a fastener that connects to the square piece 312 via an arc groove 511. The square bar output gear 51 drives the square piece 31 to rotate synchronously through the interference between the end of the arc groove 511 and the first clutch assembly 61.

[0089] The following combination Figure 1 and Figure 4 The first unlocking method of the smart door lock of the present invention is described as the lock cylinder unlocking method. For example... Figure 4 As shown, if the first clutch assembly 61 is not installed in the arc groove 511, the square bar output gear 51 and the square body 31 are separated from each other, and the rotation of the square bar output gear 51 will not drive the rotation of the square bar 30 through the square body 31.

[0090] In this embodiment, the second clutch assembly 62 is a connecting rod connecting the lock cylinder 40 and the lock cylinder output gear 52, and the second clutch assembly 62 has a non-circular cross-sectional shape. The combination of the second clutch assembly 62 and the lock cylinder 40 can form a conventional rear-drive lock cylinder, wherein the lock cylinder 40 includes:

[0091] The lock cylinder body 41 is embedded in the lock body 20, and the second clutch assembly 62 is connected to the side of the lock cylinder body 41 facing the motor housing 11.

[0092] The lever 42 rotates around the central axis of the lock cylinder body 41 under the drive of the second clutch assembly 62 and protrudes radially from the surface of the lock cylinder body 41.

[0093] The lock cylinder 40 drives the lock body 20 to rotate via the toggle block 42.

[0094] That is, when using such Figure 1 When the rear-drive lock cylinder is shown, the smart door lock of this embodiment includes a second clutch assembly 62 but does not include a first clutch assembly 61. Then, the drive motor 12 simultaneously drives the square bar output gear 51 and the lock cylinder output gear 52 to rotate. The lock cylinder output gear 52 is connected to the lock cylinder 40 as a whole via the second clutch assembly 62, while the square bar output gear 51 is separated from the square bar 30. Thus, the drive motor 12 can only drive the lock cylinder 40 to rotate via the lock cylinder output gear 52, thereby driving the lock body 20 to rotate, so as to realize the unlocking and locking actions.

[0095] The following combination Figure 5 and Figure 6 The invention describes a second unlocking method for the smart door lock—the square bar unlocking method.

[0096] The first clutch assembly 61 can be implemented as a screw, which can be threaded to the square body plate 312 and is located in the arc-shaped groove 511. When the first clutch assembly 61 is installed in the arc-shaped groove 511, when the square bar output gear 51 rotates to a position where its end interferes with the first clutch assembly 61, the square bar output gear 51 can rotate synchronously with the square body 31 due to the presence of the first clutch assembly 61, thereby realizing the connection between the square bar output gear 51 and the square bar 30.

[0097] When the first clutch assembly 61 is used, the smart lock in this embodiment does not include the second clutch assembly 62, then as follows: Figure 6 As shown, the lock cylinder 40 is not a rear-drive lock cylinder with a tail iron, and it is separate from the lock cylinder output gear 52 and the motor housing 11. The drive motor 12 drives the square bar output gear 51 and the lock cylinder output gear 52 to rotate simultaneously. The lock cylinder output gear 52 is separate from the lock cylinder 40, while the square bar output gear 51 and the square bar 30 are connected as one unit through the first clutch assembly 61. The drive motor 12 can only drive the square bar 30 to rotate through the square bar output gear 51. The square bar 30 is received in the square bar hole 32 on the lock body 20, thereby driving the lock body 20 to rotate, so as to realize the unlocking and locking actions.

[0098] It is understandable that the two ends of the arc-shaped groove 511 correspond to the unlocked and locked positions of the square bar 30. In response to different rotation directions of the square bar output gear 51, the different ends of the arc-shaped groove 511 drive the synchronous rotation of the square bar 31.

[0099] In one embodiment, the drive motor 12 is implemented as a coreless motor. The coreless motor breaks away from the traditional rotor structure of motors, employing a coreless rotor, also known as a hollow cup rotor. This novel rotor structure completely eliminates energy losses caused by eddy currents formed in the iron core. Simultaneously, its weight and moment of inertia are significantly reduced, thereby reducing the rotor's own mechanical energy loss. Due to the structural change of the rotor, the operating characteristics of the motor are greatly improved, exhibiting not only outstanding energy-saving features but, more importantly, control and drive characteristics that coreless motors cannot achieve.

[0100] As can be seen from the above technical solutions, the smart door lock of this embodiment is compatible with both square bar unlocking and rear-drive lock cylinder unlocking. In terms of hardware structure, square bar 30 and lock cylinder 40 are installed at the same time, and the drive motor 12 can simultaneously drive the square bar output gear 51 for driving the square bar 30 to rotate and the lock cylinder output gear 52 for driving the lock cylinder 40 to rotate. In this way, by selectively installing the first clutch assembly 61 or the second clutch assembly 62, the drive motor 12 can selectively drive the square bar 30 or the lock cylinder 40 to drive the lock body 20 to rotate.

[0101] The smart door lock of this embodiment can select the unlocking drive mode for the lock body 20 according to the actual usage situation. The selection of the unlocking mode can be achieved by installing only one of the first clutch component 61 and the second clutch component 62, without replacing the entire door lock. This allows the most suitable unlocking mode to be selected according to the actual usage situation, and also reduces the modification cost and time cost.

[0102] Furthermore, since the drive motor 12 can simultaneously drive the square bar output gear 51 for rotating the square bar 30 and the lock cylinder output gear 52 for rotating the lock cylinder 40, when changing the unlocking method of the lock body, only the clutch assembly needs to be installed in place, without any other operations. Therefore, it is convenient for users to replace it themselves, without the need for professional installers to operate on-site, which can save a lot of manpower and material costs.

[0103] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent implementation schemes or modifications made without departing from the spirit of the present invention, such as combinations, divisions or repetitions of features, should be included within the scope of protection of the present invention.

Claims

1. A smart door lock, characterized in that, include: A motor assembly, the motor assembly including a motor housing and a drive motor disposed within the motor housing; A lock body, wherein the lock body is arranged parallel to and spaced apart from the housing; A square bar, which connects the motor housing and the lock body; and A lock cylinder is connected to the lock body, and the square bar is arranged side by side with the lock cylinder along the motor housing; The motor housing includes a square bar output gear rotatably mounted on the motor housing and a square body coaxially arranged with the square bar output gear. The square bar and the square body are fixedly connected, and the square bar output gear is detachably connected to the square body via a first clutch assembly. The motor housing includes a lock cylinder output gear rotatably mounted on the motor housing, and the lock cylinder output gear is detachably connected to the lock cylinder via a second clutch assembly; The drive motor simultaneously drives the square bar output gear and the lock cylinder output gear to rotate. The first clutch assembly is connected to the square bar, or the second clutch assembly is connected to the lock cylinder, so that the drive motor selectively drives either the square bar or the lock cylinder to rotate the lock body.

2. The smart door lock according to claim 1, characterized in that, The motor housing includes a motor bottom shell facing the lock body, the motor bottom shell having a first through hole for the square bar to pass through and a second through hole for the second clutch assembly to pass through; The motor housing includes a first gear shaft and a second gear shaft mounted on the inner surface of the motor bottom housing, wherein the square bar output gear is rotatably supported on the first gear shaft, and the lock cylinder output gear is rotatably supported on the second gear shaft; Both the first gear shaft and the second gear shaft are perpendicular to the inner surface of the motor base.

3. The smart door lock according to claim 2, characterized in that, include: The first gear set, wherein the drive motor meshes with the first gear set to drive the square bar output gear or the lock cylinder output gear via the first gear set; The output shaft of the drive motor extends along a direction parallel to the inner surface of the motor base and has a motor gear sleeved on the output shaft. The first gear set includes at least a first gear rotatably supported on a third gear shaft, the third gear shaft being mounted on the inner surface of the motor housing and extending in a direction perpendicular to the inner surface of the motor housing; The periphery of the motor gear meshes with the face teeth of the first gear.

4. The smart door lock according to claim 3, characterized in that, The first gear set meshes with the lock cylinder output gear to transmit rotational torque from the output shaft of the drive motor to the lock cylinder output gear; The second gear shaft is located between the first gear shaft and the drive motor.

5. The smart door lock according to any one of claims 2 to 4, characterized in that, include: The second gear set meshes with the square bar output gear and the lock cylinder output gear, so that the drive motor simultaneously drives the square bar output gear and the lock cylinder output gear to rotate. The second gear set is located between the first gear shaft and the second gear shaft.

6. The smart door lock according to claim 2, characterized in that, The cube includes: A square shaft is rotatably supported on the first gear shaft. The square shaft is coaxially arranged with the square bar output gear. The square shaft has a square hole corresponding to the square body and is exposed in the first through hole. A square plate extends radially outward from the square shaft and fits against the square bar output gear.

7. The smart door lock according to claim 6, characterized in that, The square bar output gear has an arc-shaped groove; The first clutch assembly is a fastener that connects to the square piece via the arc groove. The square bar output gear drives the square piece to rotate synchronously through the interference between the end of the arc groove and the first clutch assembly.

8. The smart door lock according to claim 7, characterized in that, The two ends of the arc-shaped groove correspond to the unlocked and locked positions of the square bar.

9. The smart door lock according to claim 2, characterized in that, The second clutch assembly is a connecting rod connected between the lock cylinder and the lock cylinder output gear, and the second clutch assembly has a non-circular cross-sectional shape.

10. The smart door lock according to claim 9, characterized in that, The lock cylinder includes: A lock cylinder body, the lock cylinder body being embedded in the lock body, and a second clutch assembly being connected to the side of the lock cylinder body facing the motor housing; A lever, which rotates around the central axis of the lock cylinder body under the drive of the second clutch assembly, and protrudes radially from the surface of the lock cylinder body; The lock cylinder drives the lock body to rotate via the toggle block.

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