A front lock plate component and an intelligent lock

CN224834667UActive Publication Date: 2026-10-09ZHUHAI MINGJU INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202522288739.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-29
Publication Date
2026-10-09
Estimated Expiration
2035-10-29

AI Technical Summary

Technical Problem

[0003]以往的门锁在解锁完成后,往往需要重新扭动机械钥匙进行重新上锁,且需要随身携带机械钥匙,繁琐且不方便

Benefits of technology

[0017]至少具有如下有益效果:本智能锁具有上述前锁板构件所带来的全部有益效果,在此不做重复说明。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a front lock plate component and intelligent lock, include: front lock plate, first unlocking subassembly, second unlocking subassembly and third unlocking subassembly. First unlocking subassembly is set up in the inside of front lock plate along the up and down direction sliding, and first unlocking subassembly is provided with the unlocking notch, and the downside of unlocking notch is provided with the limiting rod of being able to extend and retract. Second unlocking subassembly, rotation is connected in the inside of front lock plate and is set up in the unlocking notch, and second unlocking subassembly is used for transmission connection lock body component, and second unlocking subassembly rotation can drive the lock bolt of lock body component to extend or retract, and the limiting slot and the locking structure are set up on second unlocking subassembly, when the limiting rod inserts the limiting slot, and the end wall of limiting slot can butt against limiting rod to restrict the rotation angle of second unlocking subassembly, third unlocking subassembly is set up in the inside of front lock plate, and third unlocking subassembly is used for locking or unlocking first unlocking subassembly.
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Description

Technical Field

[0001] This utility model relates to the field of door lock technology, and in particular to a front lock plate component and a smart lock. Background Technology

[0002] With the rise of smart homes, people have higher and higher requirements for door locks, demanding not only sufficient security but also convenient unlocking and locking.

[0003] In the past, after a door lock was unlocked, it was often necessary to turn the mechanical key again to relock it, and the mechanical key had to be carried with you at all times, which was cumbersome and inconvenient. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a front locking plate component that enables unlocking while allowing for quick locking without a mechanical key.

[0005] This utility model also proposes an intelligent lock having the aforementioned front locking plate component.

[0006] A front locking plate component according to a first aspect of the present invention includes: a front locking plate, a first unlocking component, a second unlocking component, and a third unlocking component; the first unlocking component is slidably disposed on the inner side of the front locking plate in a vertical direction, and the first unlocking component is provided with an unlocking slot, and a retractable limiting rod is provided on the lower side of the unlocking slot; the second unlocking component is rotatably connected to the inner side of the front locking plate and disposed within the unlocking slot, the second unlocking component is used for transmission connection to a lock body component, and the rotation of the second unlocking component can drive the bolt of the lock body component to extend or retract, the second unlocking component is provided with a limiting slot and a locking structure, and when the limiting rod is inserted into the front locking plate... When the limiting slot is engaged, the end wall of the limiting slot can abut against the limiting rod to limit the rotation angle of the second unlocking component; the third unlocking component is disposed on the inner side of the front locking plate, and the third unlocking component is used to lock or unlock the first unlocking component; when the third unlocking component unlocks, the first unlocking component slides down to disengage the limiting rod from the limiting slot, and the second unlocking component releases the limitation on the rotation angle. When the second unlocking component rotates clockwise, the locking structure can push the first unlocking component to slide upward and allow the limiting rod to enter the limiting slot. When the rotation angle of the second unlocking component is limited, the third unlocking component locks the first unlocking component.

[0007] It has at least the following beneficial effects: the front locking plate provides a mounting base for other components; the first unlocking component can slide in the vertical direction; the first unlocking component has an unlocking slot; a limit rod is provided on the lower side of the unlocking slot; a second unlocking component is rotatably installed in the unlocking slot; the second unlocking component has a limit slot; the limit rod is used to cooperate with the limit slot to limit the rotation angle of the second unlocking component in the unlocking slot; the third unlocking component is used to lock or unlock the first unlocking component; when the third unlocking component locks the first unlocking component, the first unlocking component cannot slide in the vertical direction; when the first unlocking component unlocks, the first unlocking component 120 slides downwards, at which time the rotation of the second unlocking component is no longer restricted by the limit slot; when locking is required, the second unlocking component is rotated clockwise, and the first unlocking component slides upwards, causing the limit rod to enter the limit slot, thereby restricting the rotation of the second unlocking component and enabling quick locking.

[0008] According to some embodiments of the present invention, the third unlocking component includes a mounting base and a dial component. The mounting base is disposed inside the front locking plate, the first unlocking component is slidably connected to the mounting base, and the dial component is disposed on the mounting base. The dial component abuts against or disengages from the first unlocking component.

[0009] According to some embodiments of this utility model, the dial component is provided with a locking steel ball, a dial wheel, and a power element. The dial wheel is provided with a plurality of unlocking bead grooves along its circumference. The locking steel ball is used to abut against the side of the first unlocking component to prevent the first unlocking component from sliding downward. When unlocking, the power element drives the dial wheel to rotate, the locking steel ball slides into the unlocking bead groove, the first unlocking component slides downward, the limiting rod slides downward as well, the two sides of the limiting groove are not restricted by the limiting rod, the second unlocking component is released from restriction and rotates, and the unlocking is completed.

[0010] According to some embodiments of this utility model, a torsion spring is provided inside the rotary wheel, and the torsion spring is used to drive the rotary wheel to rotate in the opposite direction so that the locking steel ball slides out of the unlocking ball groove.

[0011] According to some embodiments of this utility model, the power element is a motor, and a control main board is provided on the front locking plate. The control main board is used to supply power to the motor, and the motor drives the dial wheel to rotate in the forward direction so that the locking steel ball slides into the unlocking ball groove.

[0012] According to some embodiments of the present invention, an NFC antenna PCB board is provided on the outer side of the front locking plate. The NFC antenna PCB board is electrically connected to the control motherboard and is used to provide electrical signals to the control motherboard.

[0013] According to some embodiments of the present invention, the first unlocking component includes: The bracket is disposed inside the front locking plate; The locking slide is slidably mounted below the bracket in the vertical direction; A spring, with one end abutting against the bracket and the other end abutting against the locking slide plate, is used to drive the locking slide plate to slide downwards.

[0014] According to some embodiments of the present invention, the locking slide plate is provided with a locking structure on both sides, and the locking steel ball abuts against the locking structure to fix the locking slide plate.

[0015] According to some embodiments of the present invention, a door handle is provided on the front locking plate, a transmission bar is connected to the door handle, the transmission bar is snapped into the second unlocking component, and the transmission bar is fixedly disposed with the second unlocking component.

[0016] A smart lock according to a second aspect of the present invention includes a front locking plate component according to the first aspect of the present invention, and further includes a rear locking plate component, a lock body component, and a gourd lock cylinder. The front locking plate component, the lock body component, and the rear locking plate component are arranged sequentially from front to back. The gourd lock cylinder is disposed between the front locking plate component, the lock body component, and the rear locking plate component in a front-back direction. The gourd lock cylinder is throttle connected to the lock body component and is used to drive the bolt of the lock body component to extend or retract.

[0017] It has at least the following beneficial effects: This smart lock has all the beneficial effects brought about by the aforementioned front lock plate components, which will not be repeated here.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of a smart lock according to a second aspect embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of a smart lock according to a second aspect embodiment of the present utility model; Figure 3 This is a structural schematic diagram of a front locking plate component according to a first aspect embodiment of the present utility model; Figure 4 for Figure 3 The front view; Figure 5This is a schematic diagram of the structure of a front locking plate component after removing the bracket according to the first aspect of the present utility model; Figure 6 This is a structural schematic diagram of a front locking plate component according to a first aspect embodiment of the present utility model; Figure 7 This is a schematic diagram of the structure of a front locking plate component in the unlocked state according to the first aspect of the present invention; Figure 8 This is a schematic diagram of the front locking plate component when locked according to the first aspect of the present utility model; Figure 9 This is a schematic diagram of the structure of the dial component in a front locking plate component according to a first aspect embodiment of the present utility model; Figure 10 This is a schematic diagram of the structure of the rotary wheel in a front locking plate component according to a first aspect embodiment of the present invention; Reference numerals: Front lock plate 110, First unlocking component 120, Unlocking slot 121, Limiting rod 122, Bracket 123, Locking slide plate 124, Locking structure 124a, Spring 125, Second unlocking component 130, Limiting slot 131, Locking structure 132, Third unlocking component 140, Mounting base 141, Dial wheel 142, Locking ball 142a, Dial wheel 142b, Unlocking ball groove 142b1, Torsion spring 142b2, Power element 142c, Control main board 150, NFC antenna PCB board 160, Door handle 170, Transmission bar 180; Rear locking plate component 200; Lock body component 300; 400-type gourd lock core. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Reference Figures 3 to 10 This utility model discloses a front locking plate component, including: a front locking plate 110, a first unlocking component 120, a second unlocking component 130 and a third unlocking component 140, wherein the front locking plate 110 provides an installation base for the other components.

[0024] The first unlocking component 120 is slidably disposed on the inner side of the front locking plate 110 in the vertical direction. The first unlocking component 120 is provided with an unlocking slot 121, and a retractable limiting rod 122 is provided on the lower side of the unlocking slot 121.

[0025] The second unlocking component 130 is rotatably connected to the inner side of the front lock plate 110 and disposed in the unlocking slot 121. The second unlocking component 130 is used for transmission connection to the lock body component 300. The rotation of the second unlocking component 130 can drive the bolt of the lock body component 300 to extend or retract. The second unlocking component 130 is provided with a limiting slot 131 and a locking structure 132. When the limiting rod 122 is inserted into the limiting slot 131, the end wall of the limiting slot 131 can abut against the limiting rod 122 to limit the rotation angle of the second unlocking component 130. The third unlocking component 140 is located on the inside of the front locking plate 110. The third unlocking component 140 is used to lock or unlock the first unlocking component 120. When the third unlocking component 140 unlocks, the first unlocking component 120 slides down, causing the limiting rod 122 to disengage from the limiting slot 131. The second unlocking component 130 releases the restriction on the rotation angle. When the second unlocking component 130 rotates clockwise, the locking structure 132 can push the first unlocking component 120 to slide upward and cause the limiting rod 122 to enter the limiting slot 131. When the rotation angle of the second unlocking component 130 is restricted, the third unlocking component 140 locks or unlocks the first unlocking component 120.

[0026] In some embodiments, refer to Figure 3 , Figure 4 , Figure 5 , Figures 7 to 8The third unlocking component 140 includes a mounting base 141 and a dial 142. The mounting base 141 is disposed inside the front locking plate 110. The first unlocking component 120 is slidably connected to the mounting base 141. The dial 142 is disposed on the mounting base 141. The dial 142 abuts against or disengages from the first unlocking component 120. The dial 142 is used to unlock or lock the first unlocking component 120. The actions of the dial 142 in unlocking or locking the first unlocking component 120 are as follows: when the dial 142 abuts against the first unlocking component 120, it locks the first unlocking component 120 and prevents it from sliding in the up and down direction; when the dial 142 is disengaged from the first unlocking component 120, it unlocks the first unlocking component 120, at which time the first unlocking component 120 can slide in the up and down direction.

[0027] In some embodiments, refer to Figures 9 to 10 The dial component 142 is equipped with a locking steel ball 142a, a dial wheel 142b, and a power element 142c. The dial wheel 142b has several unlocking bead grooves 142b1 arranged circumferentially. The locking steel ball 142a is used to abut against the side of the first unlocking component 120 to prevent the first unlocking component 120 from sliding downward. When unlocking, the power element 142c drives the dial wheel 142b to rotate, the locking steel ball 142a slides into the unlocking bead groove 142b1, the first unlocking component 120 slides downward, the limiting rod 122 slides downward as well, the two sides of the limiting groove 131 are not restricted by the limiting rod 122, the second unlocking component 130 is released from the restriction and rotates, completing the unlocking. When the first unlocking component is... When component 120 is unlocked, the rotary wheel 142b rotates under the drive of the power element 142c, and the locking ball 142a slides into the unlocking ball groove 142b1 of the rotary wheel 142b. At this time, the first unlocking component 120 is not restricted by the locking ball 142a and can slide in the up and down direction to complete the unlocking. When the first unlocking component 120 needs to be locked, the first unlocking component 120 slides upward, and the locking ball 142a is no longer restricted by the side of the first unlocking component 120. At this time, the unlocking ball groove 142b1 slides out and abuts against the side of the first unlocking component 120. At this time, the first unlocking component 120 cannot slide, and the first unlocking component 120 is locked again.

[0028] In some embodiments, refer to Figures 9 to 10 A torsion spring 142b2 is installed inside the rotary wheel 142b. The torsion spring 142b2 is used to drive the rotary wheel 142b to rotate in the opposite direction, so that the locking steel ball 142a slides out of the unlocking ball groove 142b1. The torsion spring 142b2 is a part that can store and release energy. It should be noted that the rotation direction of the rotary wheel 142b under the drive of the power element 142c is forward. Using the torsion spring to drive the rotary wheel 142b to rotate in the opposite direction can save energy, has a simple structure, and low cost. It is understandable that the torsion spring can also be used to install other power components, such as a motor.

[0029] In some embodiments, refer to Figure 3 , Figure 4 , Figure 5 , Figures 7 to 8 The power element 142c is a motor. The front lock plate 110 is equipped with a control board 150, which is used to supply power to the motor. The motor drives the dial wheel 142b to rotate in the forward direction, causing the locking steel ball 142a to slide into the unlocking ball groove 142b1. It can be understood that the power element 142c can also be a hydraulic power source or a pneumatic power source, etc. The control board 150 is a conventional setting and will not be elaborated on further.

[0030] According to some embodiments of this utility model, refer to Figure 6 An NFC antenna PCB board 160 is mounted on the outer side of the front locking plate 110. The NFC antenna PCB board 160 is electrically connected to the control motherboard 150 and provides electrical signals to the control motherboard 150. When a user brings an NFC device close to the NFC antenna PCB board 160, the NFC antenna PCB board 160 transmits the electrical signal to the control motherboard 150. The phone's proximity to the NFC antenna PCB board generates magnetic resonance, and the energy obtained is provided to the control motherboard 150. When the control motherboard 150 receives sufficient energy, it can start normal circuit control operation and interact with the phone via the NFC antenna PCB board. The control motherboard 150 controls the power element 142c to rotate forward, causing the locking ball 142a to slide into the unlocking ball slot 142b1. The locking ball 142a no longer abuts against the first unlocking component 120, and the first unlocking component 120 slides downward to complete the unlocking.

[0031] According to some embodiments of this utility model, refer to Figure 3 , Figure 4 , Figure 5 , Figures 7 to 8 The first unlocking component 120 includes a bracket 123, a locking slide plate 124, and a spring 125. The bracket 123 is disposed inside the front locking plate 110. The locking slide plate 124 is slidably disposed below the bracket 123 in the vertical direction. One end of the spring 125 abuts against the bracket 123, and the other end of the spring 125 abuts against the locking slide plate 124. The spring 125 is used to drive the locking slide plate 124 to slide downward. The locking ball 142a abuts against the locking slide plate 124 or falls off, so as to lock or unlock the locking slide plate 124. When the locking ball 142a falls into the unlocking ball groove 142b1, the locking slide plate 124 slides downward under the drive of the spring 125. The limiting groove 131 is no longer restricted by the limiting rod 122. The second unlocking component 130 releases the rotation restriction and completes the unlocking.

[0032] According to some embodiments of this utility model, refer to Figure 3 , Figure 4 , Figure 5, Figures 7 to 8 The locking slide plate 124 is provided with locking structures 124a on both sides. The locking steel ball 142a abuts against the locking structure 124a to fix the locking slide plate 124. The locking structure 124a is an arc-shaped structure, wider at the top and narrower at the bottom. Because the upper part of the locking structure 124a is wider, the locking slide plate 124 cannot slide down under the action of the locking steel ball 142a. When the locking steel ball 142a slides into the unlocking ball groove 142b1, the locking slide plate 124 slides down under the drive of the spring 125. At this time, the locking structure 124a blocks the locking steel ball 142a into the unlocking ball groove 142b1, preventing the locking steel ball 142a from sliding out of the unlocking ball groove 142b1 under the action of the torsion spring 142b2 and abutting against the locking structure 124a, thus locking the locking slide plate 124.

[0033] According to some embodiments of this utility model, refer to Figures 3 to 8 A door handle 170 is provided on the front lock plate 110, and a transmission bar 180 is connected to the door handle 170. The transmission bar 180 is engaged within the second unlocking component 130, and the transmission bar 180 and the second unlocking component 130 are fixedly installed. The door handle 170 is located on the outside of the front lock plate 110. When the user senses the NFC antenna PCB board 160 through an NFC device, the locking pin on the lock body component 300 retracts into the lock body component 300. At this time, the door handle 170 can rotate, and the transmission bar 180 is connected to the lock body component. When the latch on the lock body component 300 is turned counterclockwise, the door handle 170 is rotated, and the transmission bar 180 drives the latch on the lock body component 300 to retract, thus opening the door. When the door handle 170 is turned clockwise, the transmission bar 180 drives the locking pin on the lock body component 300 to extend it. At the same time, the locking structure 132 abuts against the locking slide plate 124 and slides it upward. The limiting rod 122 enters the limiting slot 131, thereby restricting the rotation of the second unlocking component 130. At this time, locking is completed, and the door handle 170 cannot be rotated.

[0034] refer to Figure 1 and Figure 2 The present invention also discloses an intelligent lock, including a front locking plate component according to the first aspect embodiment of the present invention, and further including a rear locking plate component 200, a lock body component 300 and a hoist lock cylinder 400. The front locking plate component, the lock body component 300 and the rear locking plate component 200 are arranged sequentially from front to back. The hoist lock cylinder 400 is inserted between the front locking plate component, the lock body component 300 and the rear locking plate component 200 in the front-back direction. The hoist lock cylinder 400 is connected to the lock body component 300 in a driving manner. The hoist lock cylinder 400 is used to drive the lock tongue of the lock body component 300 to extend or retract.

[0035] The rear locking plate component 200, the lock body component 300, and the hoist lock cylinder 400 are all conventionally installed. The rear locking plate component 200 is installed indoors and is used for unlocking from inside the user's room. The hoist lock cylinder 400 is used to insert a mechanical key for unlocking. The lock body component 300 is equipped with a locking pin and a latch, which are used to lock the door.

[0036] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A front locking plate component, characterized in that, include: Front locking plate (110); The first unlocking component (120) is slidably disposed on the inner side of the front locking plate (110) in the up-down direction. The first unlocking component (120) is provided with an unlocking slot (121), and a telescopic limiting rod (122) is provided on the lower side of the unlocking slot (121). The second unlocking component (130) is rotatably connected to the inner side of the front lock plate (110) and disposed in the unlocking slot (121). The second unlocking component (130) is used to drive the lock body component (300). The rotation of the second unlocking component (130) can drive the bolt of the lock body component (300) to extend or retract. The second unlocking component (130) is provided with a limiting slot (131) and a locking structure (132). When the limiting rod (122) is inserted into the limiting slot (131), the end wall of the limiting slot (131) can abut against the limiting rod (122) to limit the rotation angle of the second unlocking component (130). The third unlocking component (140) is disposed on the inner side of the front locking plate (110), and the third unlocking component (140) is used to lock or unlock the first unlocking component (120). When the third unlocking component (140) is unlocked, the first unlocking component (120) slides down, causing the limiting rod (122) to disengage from the limiting slot (131). The second unlocking component (130) releases the restriction on the rotation angle. When the second unlocking component (130) rotates clockwise, the locking structure (132) can push the first unlocking component (120) to slide upward and cause the limiting rod (122) to enter the limiting slot (131). When the rotation angle of the second unlocking component (130) is restricted, the third unlocking component (140) locks the first unlocking component (120).

2. A front locking plate component according to claim 1, characterized in that, The third unlocking component (140) includes a mounting base (141) and a dial (142). The mounting base (141) is disposed inside the front locking plate (110). The first unlocking component (120) is slidably connected to the mounting base (141). The dial (142) is disposed on the mounting base (141) and abuts against or disengages from the first unlocking component (120).

3. A front locking plate component according to claim 2, characterized in that, The dial component (142) is provided with a locking steel ball (142a), a dial wheel (142b), and a power element (142c). The dial wheel (142b) is provided with a plurality of unlocking bead grooves (142b1) along its circumference. The locking steel ball (142a) is used to abut against the side of the first unlocking component (120) to prevent the first unlocking component (120) from sliding downward. When unlocking, the power element (142c) drives the dial wheel (142b) to rotate, and the locking steel ball (142a) slides into the unlocking bead groove (142b1). The first unlocking component (120) slides downward, and the limiting rod (122) slides downward as well. The two sides of the limiting slot (131) are not restricted by the limiting rod (122). The second unlocking component (130) is released from the restriction and rotates, thus completing the unlocking.

4. A front locking plate component according to claim 3, characterized in that, A torsion spring (142b2) is provided inside the rotary wheel (142b), and the torsion spring (142b2) is used to drive the rotary wheel (142b) to rotate in the opposite direction so that the locking steel ball (142a) slides out of the unlocking ball groove (142b1).

5. A front locking plate component according to claim 3, characterized in that, The power element (142c) is a motor. The front lock plate (110) is provided with a control board (150). The control board (150) is used to supply power to the motor. The motor drives the dial wheel (142b) to rotate in the forward direction so that the locking steel ball (142a) slides into the unlocking ball groove (142b1).

6. A front locking plate component according to claim 5, characterized in that, An NFC antenna PCB board (160) is provided on the outside of the front lock plate (110). The NFC antenna PCB board (160) is electrically connected to the control motherboard (150). The NFC antenna PCB board (160) is used to provide electrical signals to the control motherboard (150).

7. A front locking plate component according to claim 5, characterized in that, The first unlocking component (120) includes: A bracket (123) is disposed inside the front locking plate (110); The locking slide (124) is slidably disposed below the bracket (123) in the vertical direction; A spring (125) has one end abutting against the bracket (123) and the other end abutting against the locking slide plate (124). The spring (125) is used to drive the locking slide plate (124) to slide downward.

8. A front locking plate component according to claim 7, characterized in that, The locking slide (124) is provided with a locking structure (124a) on both sides, and the locking steel ball (142a) abuts against the locking structure (124a) to fix the locking slide (124).

9. A front locking plate component according to claim 1, characterized in that, A door handle (170) is provided on the front lock plate (110), and a transmission bar (180) is connected to the door handle (170). The transmission bar (180) is engaged within the second unlocking component (130), and the transmission bar (180) is fixedly disposed with the second unlocking component (130).

10. A smart lock, characterized in that, The device includes the front locking plate component as described in any one of claims 1-8, and further includes a rear locking plate component (200), a lock body component (300), and a hoist lock cylinder (400). The front locking plate component, the lock body component (300), and the rear locking plate component (200) are arranged sequentially from front to back. The hoist lock cylinder (400) is disposed between the front locking plate component, the lock body component (300), and the rear locking plate component (200) in a front-back direction. The hoist lock cylinder (400) is tractively connected to the lock body component (300). The hoist lock cylinder (400) is used to drive the bolt of the lock body component (300) to extend or retract.