A multi-purpose internet of things intelligent lock

Abstract

A multi-purpose Internet of Things intelligent lock is composed of a lock catch assembly and an electric control lock body assembly. The electric control lock body assembly can be engaged with the electric control lock body assembly to lock a door cabinet carrier. The electric control lock body assembly comprises a main lock shell, a control circuit board connected to a centralized power supply or a power supply battery assembly, a lock hook unit capable of cooperating with the lock catch assembly to lock the electric control lock body assembly and the lock catch assembly, a driving mechanism acting on the lock hook unit to switch the lock hook unit, a door closing signal acquisition mechanism and an unlocking signal acquisition unit. A data communication module is in communication connection with any one or more of a cloud platform, a local area network platform and a wide area network platform. The application has good adaptability, diversified assembly and use scenarios, and the wire harness can be used in a visible line or a concealed line, and is suitable for steel and wooden carriers. The application can realize centralized power supply and can be connected to a battery box assembly.

Description

Technical Field

[0001] This invention relates to the field of lock technology, and more particularly to a multi-purpose IoT smart lock. Background Technology

[0002] Locks are used in various applications, including door locks, cabinet doors, and drawers. For simple household locks such as those on cabinet doors and drawers, mechanical locks are widely used due to their simple structure, small size, and low cost. The main components of this type of mechanical lock include a lock case and a lock cylinder. The lock case is fixed to the door panel, and the lock cylinder is installed inside the lock case. When a key is inserted, the key can be used to turn the lock cylinder, causing it to rotate relative to the lock case, thus unlocking the door.

[0003] Electronic locks are a major category of locks. With societal progress, people are increasingly less fond of traditional locks and more inclined towards the security and ease of use of electronic locks. Electronic locks generally consist of electronic control and mechanical control components. The electronic control component typically comprises modules such as fingerprint or digital password recognition, used to unlock the lock cylinder. The mechanical control component includes the lock cylinder itself; after the electronic control component is unlocked, turning the lock cylinder unlocks the lock.

[0004] Generally speaking, locks used under various conditions have specific characteristics. For example: 1. They can be distinguished by the material of the carrier, such as wooden carriers and steel carriers. Steel carriers can be processed into specific shapes as needed, have high material strength, and can form a hollow structure inside for wiring harnesses (concealed wiring), so electronic locks can achieve centralized power supply through wiring harnesses. Wooden carriers are generally made of solid material, and wiring cannot be run inside, requiring exposed wiring, which affects security and aesthetics. Therefore, battery boxes are often required. That is, locks used in wooden carriers and steel carriers are different and need to be designed and manufactured separately. 2. Locks are divided into a lock box body and a latch body. Conventionally, the latch body is installed on a fixed carrier (such as a door frame or cabinet wall), and the lock box body is installed on a movable carrier (door or cabinet). Separate installation requires high positional accuracy, and if there is a deviation, repeated disassembly and reassembly adjustments are required, which is very troublesome. 3. Conventional locks are often only suitable for one of the following: single door, double door, or drawer, and cannot meet the needs of multiple scenarios at the same time. IV. Emergency unlocking function: It only has one of the following: mechanical emergency unlocking or electronic emergency unlocking. Summary of the Invention

[0005] To overcome the above-mentioned shortcomings of the prior art, the present invention provides a multi-purpose Internet of Things smart lock.

[0006] The technical solution of this invention to solve its technical problem is: a multi-purpose Internet of Things smart lock, comprising a latch assembly and an electronically controlled lock body assembly, wherein the electronically controlled lock body assembly can engage with other components to lock cabinet-like carriers; the electronically controlled lock body assembly includes:

[0007] The control circuit board is connected to a centralized power supply or a power supply battery assembly;

[0008] The locking hook unit has a locked position and an unlocked position. The locking hook unit can cooperate with the latch assembly to lock or disengage the electronic lock body assembly and the latch assembly.

[0009] A drive mechanism, which is connected to the control circuit board and acts on the locking hook unit to switch the locking hook unit between the locked position and the unlocked position;

[0010] The door closing signal acquisition mechanism is communicatively connected to the control circuit board.

[0011] Unlock the signal acquisition unit, which is connected to the control circuit board.

[0012] The data communication module communicates with the control circuit board and also communicates with one or more of the cloud platform, local area network platform, and wide area network platform.

[0013] The main lock housing provides installation space and has a locking groove for the latch assembly to enter and an emergency groove for the drive mechanism.

[0014] In some embodiments of the present invention, the electronically controlled lock body assembly further includes a waterproof housing located inside the main lock housing, and the control circuit board and drive mechanism are disposed in the inner waterproof housing.

[0015] In some embodiments of the present invention, the power supply battery assembly includes a battery box body, which can be directly mounted on the electronically controlled lock body assembly to be connected as a whole.

[0016] In some embodiments of the present invention, the electronically controlled lock body assembly further includes an indicator light assembly, which is electrically connected to the control circuit board.

[0017] In some embodiments of the present invention, the electronically controlled lock body assembly further includes a data interface and / or an electrical signal interface.

[0018] In some embodiments of the present invention, the driving mechanism includes a motor, a gear assembly driven by the motor, and a locking hook actuating mechanism that forms a transmission connection with the gear assembly. The locking hook actuating mechanism is capable of contacting the locking hook unit and driving the locking hook unit to switch its position state.

[0019] A further configuration of the above technical solution is that the locking hook actuation mechanism includes a fork connected to the gear assembly, a pull rod acted upon by the fork, and a locking hook block driven by the pull rod.

[0020] A further configuration of the above technical solution is that the pull rod has a pull rod body, a transmission step protruding from the pull rod body, and an annular groove formed on the pull rod body; the shift fork forms a clearance fit with the pull rod body, and the shift fork can abut against the transmission step to drive the pull rod to move; the locking hook block is at least partially inserted into the annular groove, and the locking hook block moves when the pull rod moves.

[0021] The connection between the pull rod and the locking hook block is located at the emergency slot.

[0022] A further provision of the above technical solution is that the locking hook unit is rotatably configured via a locking hook pivot, and the locking hook unit has several sets of evenly distributed locking arms, with locking grooves formed between adjacent locking arms for engaging with the locking assembly.

[0023] The locking arm can extend into the locking groove to form a locking engagement with the latch assembly.

[0024] In some embodiments of the present invention, the door closing signal acquisition mechanism includes a pin, an elastic element, and an acquisition device communicatively connected to the control circuit board. The elastic element acts on the pin so that the pin always has a tendency to move toward the lock block assembly, and the pin can be aligned or misaligned with the acquisition device so that the acquisition device can determine the door closing signal.

[0025] In some embodiments of the present invention, the latch assembly includes a fixed mounting plate connected to the cabinet carrier, a movable mounting plate mounted on the fixed mounting plate, and a latch body fixed on the movable mounting plate.

[0026] The movable mounting plate is located inside the fixed mounting plate, and the fixed mounting plate has an adjustment groove. The locking body passes through the adjustment groove and extends to the outside of the fixed mounting plate.

[0027] Compared with the prior art, the beneficial effects of the present invention are at least as follows:

[0028] 1. Excellent adaptability and diverse assembly and usage scenarios; it can be installed on cabinets or doors; it can be installed on the inside or the outside.

[0029] 2. The wiring harness can be exposed or concealed, allowing it to be mounted on steel or wooden carriers.

[0030] Third, centralized power supply can be achieved through wiring harnesses, or it can be connected to a battery box assembly to achieve battery power supply.

[0031] IV. It is equipped with a data interface (such as a Type-C interface) to realize diverse functions such as electronic unlocking, downloading operation logs, emergency power supply, and emergency unlocking.

[0032] Fifth, it is equipped with a data communication module, enabling the lock to connect to a cloud system platform, local area network platform, or wide area network platform to achieve communication and realize the Internet of Things (IoT) function of the lock. This allows users to remotely obtain various usage parameters and statuses of the lock in real time on various electronic devices (mobile phones, computers, etc.). It also adapts to any unlocking method, such as card swiping, Bluetooth, fingerprint, and password.

[0033] 6. It has an electrical signal interface and can charge external devices (such as mobile phones).

[0034] 7. Applicable to various media such as single doors, double doors, and drawers.

[0035] 8. The locking body in the locking assembly can be adjusted in time when the position is found to be inaccurate during installation, and the adjustment does not require the removal of the mounting base plate, which is relatively convenient and practical. Attached Figure Description

[0036] Figure 1 This is a structural schematic diagram of the present invention (power supply battery assembly method).

[0037] Figure 2 This is a schematic diagram showing the component breakdown of the present invention (power supply battery assembly method).

[0038] Figure 3 This is a schematic diagram of the structure of the present invention (centralized power supply method).

[0039] Figure 4 This is a comparative diagram showing the adjustment of the locking component position.

[0040] Figure 5 This is an exploded view of the latch assembly.

[0041] Figure 6 This is a schematic diagram of the structure of the electronically controlled lock body assembly.

[0042] Figure 7 This is a schematic diagram showing the separation of the main shell and the waterproof casing.

[0043] Figure 8 This is a schematic diagram of the internal structure of the electronically controlled lock body assembly (locked position state).

[0044] Figure 9 This is a schematic diagram of the internal structure of the electronically controlled lock body assembly (unlocked position).

[0045] Figure 10 This is a schematic diagram of the internal structure of the electronic lock body assembly from another angle.

[0046] Figure 11 This is a structural diagram of the drive mechanism and the locking body.

[0047] Figure 12 This is an exploded view of a portion of the shift fork and gear assembly.

[0048] In the diagram: 1. Locking assembly; 101. Fixed mounting plate; 102. Movable mounting plate; 103. Locking body; 104. Adjustment groove; 2. Electric lock body assembly; 201. Control circuit board; 202. Lock hook unit; 203. Drive mechanism; 204. Door closing signal acquisition mechanism; 205. Unlocking signal acquisition unit; 206. Main lock housing; 207. Locking groove; 208. Emergency groove; 209. Waterproof housing; 210. Indicator light assembly; 211. TYPE- 212. C-interface; 213. Motor; 214. Gear assembly; 215. Worm gear; 216. Bevel gear; 217. Shift fork; 218. Pull rod; 219. Locking hook block; 220. Pull rod body; 221. Transmission step; 222. Ring groove; 223. Locking hook shaft; 224. Locking arm; 225. Locking slot; 226. Gear shaft; 227. Torsion spring; 3. Power supply battery assembly; 301. Wiring harness; 401. Pin rod; 402. Elastic element; 403. Data acquisition device. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] Example 1

[0051] Reference Figures 1-10 A multi-purpose IoT smart lock comprises a latch assembly 1 and an electronically controlled lock body assembly 2, wherein the electronically controlled lock body assembly 2 can be engaged to lock a door or cabinet-like carrier; the electronically controlled lock body assembly 2 includes:

[0052] The control circuit board 201 is connected to the centralized power supply or the power supply battery assembly 3; it is the control center of the entire smart lock, used to electrically connect with various electrical components and to communicate with various actuators.

[0053] The locking hook unit 202 has a locked position and an unlocked position. The locking hook unit 202 can cooperate with the latch assembly 1 to lock or disengage the electronic lock body assembly 2 and the latch assembly 1. When the locking hook unit 202 is in the locked position, the locking hook unit 202 and the latch assembly 1 are aligned and interfere with each other in space, restricting their respective movements, thus locking the door, cabinet, or other carrier. Conversely, when the locking hook unit 202 is in the unlocked position, the locking hook unit 202 and the latch assembly 1 are misaligned, eliminating the spatial interference, and the locking hook unit 202 and the latch assembly 1 can disengage and move away from each other.

[0054] The drive mechanism 203 is connected to the control circuit board 201 and acts on the locking hook unit 202 to switch the locking hook unit 202 between the locked position and the unlocked position. The drive mechanism 203 can be a motor 212, a cylinder, or something similar; no special limitation is made here.

[0055] The door closing signal acquisition mechanism 204 is communicatively connected to the control circuit board 201. When the carrier where the electric lock body assembly 2 is located and the carrier where the latch assembly 1 is located switch between closed and open, the door closing signal acquisition mechanism 204 can identify the closed and open status and feed it back to the control circuit board 201.

[0056] The unlock signal acquisition unit 205 is communicatively connected to the control circuit board 201. The unlock signal acquisition unit 205 can be any one or more of a Bluetooth signal acquisition unit, a fingerprint signal acquisition unit, a face signal acquisition unit, a seal signal acquisition unit, or a chip card signal acquisition unit; these are preferred embodiments and are not specifically limited herein. When a correct unlock signal is detected, the control circuit board 201 activates the motor 212 to switch the locking hook unit 202 from the locked position to the unlocked position; if the input unlock signal is incorrect, the locked position will remain unchanged.

[0057] The data communication module communicates with the control circuit board 201, and also with one or more of the following platforms: cloud platform, local area network platform, and wide area network platform. Through the configuration and function of the data communication module, communication with various network platforms can be achieved to realize the Internet of Things (IoT) function of the lock. This allows users to remotely obtain various usage parameters and statuses of the lock in real time on various electronic devices (mobile phones, computers, etc.).

[0058] The main lock housing 206 provides installation space and has a locking groove 207 for the locking assembly 1 to enter and an emergency groove 208 adapted to the drive mechanism 203.

[0059] Example 2

[0060] Based on Embodiment 1 of the present invention, this embodiment provides a preferred scheme for a partial structure of the electronically controlled lock body assembly 2, mainly as follows: (Refer to...) Figures 6-7 The electronically controlled lock body assembly 2 further includes a waterproof housing 209 located within the main lock housing 206, and the control circuit board 201 and drive mechanism 203 are housed within the inner waterproof housing 209. The waterproof housing 209 is preferably made of waterproof materials such as plastic to improve its overall waterproof performance, thereby providing better protection for components such as the control circuit board 201 and drive mechanism 203, reducing the failure rate of electromechanical components, effectively ensuring the stability of overall operation, and extending service life.

[0061] Example 3

[0062] In some embodiments of the present invention, reference is made to... Figures 1-2 The power supply battery assembly 3 includes a battery box body, which can be directly mounted on the electronic lock body assembly 2 to form a single unit. This embodiment is primarily applicable to carriers where concealed wiring is not possible (such as wooden doors and cabinets). Because it employs a one-piece structure, the power supply battery assembly 3 does not need to be separately fixed to the carrier during assembly; it directly relies on the electronic lock body assembly 2. Therefore, installation is almost as convenient as with centrally powered locks.

[0063] Example 4

[0064] Based on the foregoing embodiments, in order to improve the user experience, this embodiment refers to... Figures 6-7 The electronically controlled lock body assembly 2 also includes an indicator light assembly 210, which is electrically connected to the control circuit board 201. The indicator light assembly 210 serves two purposes: firstly, it provides illumination; secondly, it establishes a communication connection with the circuit board to indicate the various states of the smart lock.

[0065] Example 5

[0066] In some embodiments of the present invention, reference is made to... Figures 6-7 The electronically controlled lock body assembly 2 further includes a data interface and / or an electrical signal interface. The data interface and electrical signal interface can be an integrated interface, such as a TYPE-C interface 211; or they can be two separate interfaces; the specific form is not specifically limited here.

[0067] The data interface is configured to enable emergency unlocking when the basic unlocking signal acquisition unit 205 malfunctions, and to download operation logs for data analysis.

[0068] The electrical signal interface can provide emergency power to the electric lock body component 2, and can also be used to install a power storage module in the electric lock body component 2 to output power to the outside (such as charging a mobile phone).

[0069] Example 6

[0070] This embodiment provides a preferred solution for the drive mechanism 203, specifically as follows: (Refer to...) Figures 8-12 The drive mechanism 203 includes a motor 212, a gear assembly 213 driven by the motor 212, and a locking hook actuating mechanism that is connected to the gear assembly 213 in a transmission manner. The locking hook actuating mechanism can abut against the locking hook unit 202 and drive the locking hook unit 202 to switch its position state. Preferably, a worm gear 214 is sleeved on the output shaft of the motor 212, and the gear assembly 213 includes a bevel gear 215 that meshes with the worm gear 214, so that it has a self-locking function when not in operation to improve safety.

[0071] The shift fork 216 is a component commonly used in automotive clutches. Connected to the gearshift lever and located at the lower end of the lever, it shifts the intermediate gear wheel to change the input / output speed ratio. Alternatively, it is used in machine tool operating mechanisms to disengage two meshing gears and shift one of the sliding gears onto the other to obtain a different speed. In other words, it changes the position of the sliding gears on a lathe to achieve speed change.

[0072] A particularly innovative aspect is the application of the shift fork 216 to the lock hook actuation mechanism of the lock of this invention. This mechanism includes the shift fork 216 connected to the gear assembly 213, a pull rod 217 acted upon by the shift fork 216, and a lock hook lever 218 driven by the pull rod 217. In use, the shift fork 216 and pull rod 217 function similarly to a clutch, meaning the pull rod 217 controls the lock hook lever 218 to switch between the locked and unlocked positions. The advantage is that during installation, when the lock is not yet powered on and the lock hook lever 218 is not in the correct position, the pull rod 217 can be contacted through the emergency slot 208. By utilizing the separation between the shift fork 216 and the pull rod 217, the lock hook lever 218 can be directly controlled via the pull rod 217, facilitating installation and adjustment even without power. In addition, if there is a fault in the motor 212, the emergency unlocking can be achieved by pulling rod 217. The emergency operation is almost the same as the above-mentioned debugging operation, and will not be described in detail here.

[0073] The aforementioned movement between the shift fork 216 and the pull rod 217 is similar to a clutch shift. To achieve this action, the preferred structure is as follows: the pull rod 217 has a main body, a transmission step 220 protruding from the main body, and an annular groove 221 formed on the main body; the shift fork 216 forms a clearance fit with the main body of the pull rod 217, and the shift fork 216 can abut against the transmission step 220 to drive the pull rod 217 to move; the locking hook block 218 is at least partially inserted into the annular groove 221, and the locking hook block 218 moves when the pull rod 217 moves; the connection between the pull rod 217 and the locking hook block 218 is located at the emergency groove 208. In use, when the shift fork 216 abuts against the transmission step 220 on the pull rod 217, the shift fork 216 and the pull rod 217 form a transmission relationship, thereby lifting the pull rod 217 and adjusting the position of the locking hook block 218. When the shift rod is positioned relative to the main body of the pull rod 217, it is simultaneously displaced from the transmission step 220 on the pull rod 217. At this time, the movement of the pull rod 217 will not be obstructed or affected by the shift fork 216, meaning that emergency operation and adjustment operation of the locking hook block 218 can be achieved without the aid of the shift fork 216. On the other hand, the stable connection and transmission function between the two are achieved through the cooperation of the annular groove 221 and the locking hook block 218, which is a preferred embodiment of the present invention and is not specifically limited here.

[0074] A further configuration of the above technical solution is that the locking hook unit 202 is rotatably configured via a locking hook pivot 222. The locking hook unit 202 has several evenly distributed locking arms 223, with adjacent locking arms 223 forming locking grooves 224 for engaging with the locking assembly 1. The locking arms 223 can extend into the locking grooves 207 to form a locking engagement with the locking assembly 1. Preferably, the locking hook unit 202 is shaped like a swastika, with a centrally symmetrical structure, having four sets of locking arms 223 and locking grooves 224, each set having the same locking function. Furthermore, the preferred locking hook unit 202 achieves the switching function between unlocking and locking through rotation. Compared to the conventional straight-in / straight-out switching method, the advantages of this invention are that it occupies less installation and operating space, has more uniform force distribution, more reliable stability, and can maintain a good working condition for a long time.

[0075] Preferably, the output end of the gear assembly 213 is connected to the shift fork 216 via a gear shaft 225, and a torsion spring 226 is sleeved on the gear shaft 225. The two ends of the torsion spring 226 abut against the shift fork 216 and the output end of the gear assembly 213, respectively. The torsion spring 226 ensures that the transmission between the gear assembly 213 and the shift fork 216 always maintains a certain elastic tension, making its operation more reliable; it also provides a certain buffering force, protecting the components; furthermore, it provides elastic restoring force during reset, making reset faster and more complete.

[0076] Example 7

[0077] This embodiment provides a preferred solution for the door closing signal acquisition mechanism 204, specifically as follows: (Refer to...) Figures 7-10 The system includes a latch 401, an elastic element 402, and a data acquisition device 403 communicatively connected to the control circuit board 201. The elastic element 402 acts on the latch 401 so that the latch 401 always has a tendency to move towards the locking block assembly. The latch 401 can be aligned or misaligned with the data acquisition device 403 so that the data acquisition device 403 can determine the door closing signal. The elastic element 402 can be the same molded part as the latch 401, or it can be two separate parts assembled together for use.

[0078] In the above description, the data acquisition device 403 can be a micro switch, a light sensor, or other devices. In use, when the cabinet door is open, the elastic element 402 pushes the latch 401 outward. At this time, the data acquisition device 403 can identify that the latch 401 is in the pushed-out position and provide feedback to the control circuit board 201, which then performs further processing. When the cabinet door is closed, the latch 401 abuts against the cabinet door or latch assembly 1 and retracts (at this time, the elastic element 402 is compressed). After retraction, the position of the latch 401 changes compared to when it is open. At this time, the data acquisition device 403 can identify that the latch 401 is in the closed position and provide feedback to the control circuit board 201, which then performs further processing.

[0079] The 204 door closing signal acquisition mechanism provides a realistic and effective description of its usage scenarios and functions. For example, when a user closes a door, they may mistakenly believe it is closed when it is not. The mechanism can send a signal indicating that the door is not closed to the user's smart device terminal via a data communication module, so that the user can know the status of the lock in real time and close the door cabinet in time, thereby improving security.

[0080] Example 8

[0081] Based on any of the foregoing embodiments, this embodiment provides a preferred solution for the locking assembly 1, specifically as follows: (Refer to...) Figures 4-5The latch assembly 1 includes a fixed mounting plate 101 connected to the cabinet carrier, a movable mounting plate 102 mounted on the fixed mounting plate 101, and a latch body 103 fixed on the movable mounting plate 102; wherein the movable mounting plate 102 is located inside the fixed mounting plate 101, the fixed mounting plate 101 is provided with an adjustment groove 104, and the latch body 103 extends out to the outside of the fixed mounting plate 101 after passing through the adjustment groove 104.

[0082] A conventional latch assembly 1 has only one mounting plate, and the latch body 103 is directly connected to the mounting plate. Therefore, when the mounting plate is installed on a carrier such as a door cabinet or wall, due to operational errors, or even if the installation itself is not problematic but the precision of the parts is not up to standard or the carrier is uneven, it is necessary to calibrate beforehand to achieve sufficient positional accuracy. Otherwise, if a deviation in position from the electronic lock body assembly 2 is found later, the latch assembly 1 or the electronic lock body assembly 2 needs to be removed from the carrier and recalibrated and installed, which is very troublesome.

[0083] In this embodiment, during installation, the fixed mounting plate 101 serves as a base and is fixed to a carrier such as a door cabinet or wall. The movable mounting plate 102 is placed between the fixed mounting plate 101 and the carrier. Then, according to the actual installation situation, the position of the latch body 103 (movable mounting plate 102) relative to the electronic lock body assembly 2 can be adjusted by adjusting the groove 104 and the lock block body to achieve position matching and prevent misalignment that could lead to failure to lock properly. Finally, the movable mounting plate 102 and the fixed mounting plate 101 are fixed together with screws or other fixing components. The combination of the fixed mounting plate 101, the movable mounting plate 102, and the latch body 103 not only meets the fixing requirements but also allows for timely adjustment when inaccurate positioning is found. Moreover, the adjustment does not require the removal of the fixed mounting plate 101, making it very convenient and practical.

[0084] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the invention shall still fall within the protection scope of the present invention.

Claims

1. A multi-purpose Internet of Things (IoT) smart lock, comprising a latch assembly (1) and an electronically controlled lock body assembly (2), wherein the electronically controlled lock body assembly (2) can engage with the electronically controlled lock body assembly (2) to lock a cabinet-like carrier; characterized in that, The electronically controlled lock body assembly (2) includes: A control circuit board (201) is connected to a centralized power supply or a power supply battery assembly (3); The locking hook unit (202) has a locked position state and an unlocked position state. The locking hook unit (202) can cooperate with the latch assembly (1) so that the electronically controlled lock body assembly (2) and the latch assembly (1) can be locked or disengaged from each other. A drive mechanism (203) is connected to a control circuit board (201) and acts on the locking hook unit (202) to switch the locking hook unit (202) between a locked position and an unlocked position. A door closing signal acquisition mechanism (204) is communicatively connected to a control circuit board (201); Unlock the signal acquisition unit (205), which is communicatively connected to the control circuit board (201); The data communication module is connected to the control circuit board (201) and also to one or more of the cloud platform, local area network platform and wide area network platform. The main lock housing (206) provides installation space and has a locking groove (207) for the locking assembly (1) to enter and an emergency groove (208) for the drive mechanism (203). The drive mechanism (203) includes a motor (212), a gear assembly (213) driven by the motor (212), and a lock hook actuation mechanism that forms a transmission connection with the gear assembly (213). The lock hook actuation mechanism can abut against the lock hook unit (202) and drive the lock hook unit (202) to switch its position state. The locking hook actuation mechanism includes a fork (216) connected to the gear assembly (213), a pull rod (217) acted upon by the fork (216), and a locking hook actuation block (218) driven by the pull rod (217); The pull rod (217) has a pull rod (217) body, a transmission step (220) protruding from the pull rod (217) body, and an annular groove (221) formed on the pull rod (217) body; the shift fork (216) forms a clearance fit with the pull rod (217) body, and the shift fork (216) can abut against the transmission step (220) to drive the pull rod (217) to move; the locking hook block (218) is at least partially inserted into the annular groove (221), and the locking hook block (218) moves when the pull rod (217) moves. The connection between the pull rod (217) and the locking hook block (218) is located at the emergency slot (208).

2. The multi-purpose IoT smart lock according to claim 1, characterized in that: The electronically controlled lock body assembly (2) also includes a waterproof housing (209) located inside the main lock housing (206), and the control circuit board (201) and drive mechanism (203) are disposed in the waterproof housing (209).

3. The multi-purpose IoT smart lock according to claim 1, characterized in that: The power supply battery assembly (3) includes a battery box body, which can be directly mounted on the electronic lock body assembly (2) to be connected as one unit.

4. The multi-purpose IoT smart lock according to claim 1, characterized in that: The electronically controlled lock body assembly (2) also includes an indicator light assembly (210), which is electrically connected to the control circuit board (201).

5. The multi-purpose IoT smart lock according to claim 1, characterized in that: The electronically controlled lock body assembly (2) also includes a data interface and / or an electrical signal interface.

6. The multi-purpose IoT smart lock according to claim 1, characterized in that: The locking hook unit (202) is rotatably configured via a locking hook pivot (222). The locking hook unit (202) has several sets of evenly distributed locking arms (223), and a locking groove (224) for cooperating with the locking assembly (1) is formed between adjacent locking arms (223). The locking arm (223) can extend into the locking groove (207) to form a locking engagement with the locking assembly (1).

7. The multi-purpose IoT smart lock according to claim 1, characterized in that: The door closing signal acquisition mechanism (204) includes a pin (401), an elastic element (402), and an acquisition device (403) that is communicatively connected to the control circuit board (201). The elastic element (402) acts on the pin (401) so that the pin (401) always has a tendency to move towards the lock block assembly. The pin (401) can be aligned or misaligned with the acquisition device (403) so that the acquisition device (403) can determine the door closing signal.

8. The multi-purpose IoT smart lock according to claim 1, characterized in that: The latch assembly (1) includes a fixed mounting plate (101) connected to the cabinet carrier, a movable mounting plate (102) mounted on the fixed mounting plate (101), and a latch body (103) fixed on the movable mounting plate (102). The movable mounting plate (102) is located inside the fixed mounting plate (101). The fixed mounting plate (101) has an adjustment groove (104). The latch body (103) passes through the adjustment groove (104) and extends to the outside of the fixed mounting plate (101).

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