Self-sensing anti-falling structure of intelligent lock catch and state monitoring method

Abstract

The invention discloses a self-sensing anti-falling structure of an intelligent lock catch and a state monitoring method, the self-sensing anti-falling structure comprises a lock catch main body, and the center of the lock catch main body is provided with a first accommodating cavity for accommodating a data line plug; an anti-falling assembly, a controller and a power supply module are arranged in the lock catch body, the power supply module is electrically connected with the controller, the anti-falling assembly comprises a micro motor and a locking piece, at least two locking cavities are formed around the first containing cavity at equal angles, the micro motor is arranged in the lock catch body, and the locking piece is installed in the locking cavities through bearings. A rotating shaft of the micro motor drives the locking piece to rotate, and the locking piece is a barrel provided with an internal thread; the buckling piece is provided with a second containing cavity used for containing a data line socket, a plurality of locking rods are arranged on the side, close to the lock catch body, of the buckling piece, external threads are arranged on the locking rods, and the locking rods are in threaded connection with the locking piece. The sensing assembly comprises a distance detection sensor and a detection plate, and the distance detection sensor and the detection plate are fixed to one side of the data line plug and one side of the data line socket respectively.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of intelligent lock catch, and particularly relates to a self-sensing anti-falling structure of an intelligent lock catch and a state monitoring method. BACKGROUND

[0002] In the field of industrial intelligent gateways, the stability of the data line interface connection between the gateway and external devices and modules directly determines the continuity of data transmission and the safety of device operation, and the performance of the lock catch, as the core component of the interface lock, is crucial. In the prior art, industrial interface lock catches are mostly designed with traditional mechanical structures, and some only integrate basic sensing functions: in terms of mechanical anti-falling, locking is mainly achieved through bolt fastening, elastic buckle cooperation or pin positioning, and a few anti-vibration solutions add components such as disc springs, but such structures rely on physical contact limiting, and under the continuous vibration, temperature and humidity fluctuations and dust erosion in the industrial environment, they are prone to component wear, rust or elastic fatigue, resulting in a decline in the anti-loosening ability, and cannot sense the loosening trend, and often the interface is disconnected until the lock catch completely falls off. In terms of state monitoring, only a few high-end products are equipped with travel switches or proximity sensors, which can only determine the binary states of "closed" or "open", cannot accurately capture the distance change in the loosening process, cannot actively intervene to prevent falling off, and mostly use wired transmission, which cannot adapt to the requirements of wireless networking and remote monitoring of gateways. More importantly, the existing solutions lack full life cycle management capabilities, cannot dynamically adjust the monitoring accuracy according to environmental vibration and other working conditions, cannot estimate the service life based on historical fault data, cannot realize early warning and preventive maintenance, and greatly increase the operation and maintenance cost and the risk of device downtime. SUMMARY

[0003] In order to overcome the problems existing in the prior art, the self-sensing anti-falling structure of the intelligent lock catch and the state monitoring method are designed, which can realize real-time automatic adjustment of the rearview mirror.

[0004] To solve the above technical problems, the technical scheme adopted by the present application is as follows: the self-sensing anti-falling structure of the intelligent lock catch and the state monitoring method, comprising a lock catch main body, a locking piece, a sensing assembly, an anti-falling assembly, a controller and a power supply module; the lock catch main body is provided with a first accommodating cavity in the center for accommodating a data line plug;

[0005] The lock body is provided with the anti-falling assembly, the controller and the power supply module, the power supply module is electrically connected with the controller, the anti-falling assembly comprises a micro motor and a locking piece, at least two locking cavities are arranged at equal angles around the first accommodating cavity, the lock body is provided with the micro motor, the locking piece is installed in the locking cavity through a bearing, the micro motor shaft drives the locking piece to rotate, and the locking piece is a cylinder provided with an internal thread; The clasp is provided with a second accommodating cavity for accommodating a data line socket, the side of the clasp close to the lock body is provided with a plurality of locking rods, the number of the locking rods is the same as that of the locking pieces and the positions of the locking rods correspond to those of the locking pieces one by one, the locking rods are provided with external threads, and the locking rods are in threaded connection with the locking pieces;

[0006] The sensing assembly comprises a distance detection sensor, the distance detection sensor is arranged on the side of the lock body close to the clasp, the clasp is provided with an annular detection plate, the distance detection sensor is electrically connected with the controller, and the micro motor is electrically connected with the controller.

[0007] When the micro motor is started, the locking piece is driven to rotate, the locking piece rotates, the locking rods are tightened and deeply inserted into the locking piece, the lock body and the clasp are pulled close, and the lock body and the clasp are used to pull the data line plug and the data line socket to prevent falling.

[0008] Further, the distance detection sensor performs distance detection at a fixed frequency and feeds back the detected distance to the controller, the sensing assembly is further provided with a vibration sensor electrically connected with the controller, the vibration sensor is arranged in the lock body, when any index change amplitude of a vibration frequency, a vibration amplitude, a vibration frequency change amplitude or a vibration amplitude change amplitude detected by the vibration sensor exceeds a respective threshold value, the controller controls the distance detection sensor to increase the detection frequency of the distance detection sensor and continuously performs distance detection, continuously feeds back the detected distance to the controller, until the above index is lower than the respective threshold value, and the preset detection frequency is restored.

[0009] Further, the anti-falling assembly further comprises a driving gear, a synchronous driving gear and a driven gear, the lock body is provided with a gear meshing cavity and a motor cavity, the micro motor is arranged in the motor cavity, the rotating shaft of the micro motor extends into the gear meshing cavity and is connected with the driving gear, the driven gear is fixedly connected with the locking piece, the gear meshing cavity is provided with a bearing, the inner ring of the bearing is provided with the synchronous driving gear, the inner side of the synchronous driving gear is provided with a double-layer internal gear, which is meshed with the driving gear and the driven gear respectively; the driving gear is driven to rotate by the rotating shaft of the micro motor, the synchronous driving gear is driven to rotate by the driving gear, and the synchronous driving gear is driven to rotate by the plurality of driven gears, and each driven gear drives each locking piece to rotate synchronously.

[0010] Further, one side of the locking cavity is provided with a limiting hole, and the clamping piece is provided with a plurality of limiting rods, the number of the limiting rods is the same as that of the limiting holes, and the positions of the limiting rods correspond to those of the limiting holes one by one.

[0011] Further, the bearing for mounting the locking piece in the locking cavity is provided with two, both of which are angular contact ball bearings, and the two angular contact ball bearings are oppositely arranged.

[0012] Further, the clamping piece further comprises a protective sleeve, the protective sleeve is cylindrical, the protective sleeve is arranged on the side of the clamping piece close to the lock body, the lock body is provided with a ring groove on the side close to the clamping piece, the protective sleeve is inserted into the ring groove, and the protective sleeve covers the gap between the data line plug and the data line socket.

[0013] Further, the distance detection sensor is arranged on the side of the lock body facing the clamping piece, the distance detection sensor is located on the inner side of the ring groove, and the annular detection plate on the clamping piece is located on the inner side of the protective sleeve.

[0014] Further, the controller is provided with a motor control module, a distance detection module and a vibration monitoring module; the motor control module is used to control the rotating speed, rotating direction and start-stop of the micro motor, the distance detection module is used to obtain the data measured by the distance detection sensor, compare the data with the preset anti-falling threshold value, and trigger the start-stop of the micro motor through the motor control module after comparison, and the vibration monitoring module is used to monitor the vibration data fed back by the vibration sensor.

[0015] A state monitoring method of an intelligent lock, applied to the self-sensing anti-falling structure of the intelligent lock, comprising the following steps:

[0016] Step S1: After connecting the data cable plug to the data cable socket, press the initialization button. The distance detection sensor performs the initial distance detection and feeds back the initially measured distance to the parameter setting module of the controller to confirm the initial distance parameters. The initialization button is located on the control panel on one side of the latch body.

[0017] Step S2: The distance detection sensor performs distance detection at a fixed frequency and calculates the difference between the measured distance and the initial distance. The fixed frequency is once per minute by default.

[0018] Step S3: When the vibration sensor detects that the change in any of the vibration frequency, amplitude, vibration frequency change range, or amplitude change range exceeds its respective threshold, the controller controls the distance detection sensor to increase its detection frequency and continuously perform distance detection, continuously feeding back the measured distance to the controller until the above indicators are lower than their respective thresholds, at which point the preset detection frequency is restored; the detection frequency of the distance detection sensor is increased to once per second.

[0019] Step S4: When the difference between the distance measured by the distance detection sensor and the initial distance exceeds the preset anti-drop threshold, the controller activates the anti-drop component, the micro motor of the anti-drop component starts, drives the locking member to rotate, the locking member rotates, the locking rod tightens and penetrates into the locking member, the locking body and the fastening member pull the data cable plug and data cable socket tight to prevent them from falling off, until the difference between the distance measured by the distance detection sensor and the initial distance is less than the anti-drop threshold, the micro motor is turned off;

[0020] Step S5: After the micro motor starts, if the difference between the distance measured by the distance detection sensor and the initial distance is greater than the anti-fall threshold for more than five seconds, it is determined that an abnormal state has occurred and the initial distance cannot be restored. The currently measured distance is set as the temporary initial distance, and the alarm module is activated to prompt the user to manually inspect or replace the smart lock. When the difference between the newly measured distance data and the temporary initial distance is lower than the anti-fall threshold, the micro motor is turned off. After the maintenance personnel troubleshoot the fault, they can press the initialization button to reset the initial distance and deactivate the alarm.

[0021] Step S6: Based on the number of times the alarm module has been activated, the distance detection sensor increases the detection frequency. Each time the alarm module is triggered, the new detection frequency is 1.5 times the original detection frequency. The time of triggering the alarm is recorded. The normal working duration of the smart lock from initialization to the triggering of the alarm is calculated. The data is summarized and recorded as the average service life of the smart lock under different application scenarios. When the service life of the subsequently replaced smart lock reaches the average service life, an early warning is issued to remind the user to replace the smart lock.

[0022] Furthermore, the alarm module mentioned in step S5 includes a local alarm unit and a remote alarm unit; the local alarm unit is implemented by an LED indicator and a buzzer integrated on the surface of the control panel. When an abnormal state of failure is detected, the LED indicator emits a red flashing signal, and the buzzer emits an intermittent alarm sound; the remote alarm unit pushes the abnormal information to the terminal device or remote monitoring platform through the controller's wireless data transmission module. After receiving the information, the terminal device or remote monitoring platform reminds the user to go for repair through pop-up windows, SMS or APP notifications.

[0023] The beneficial effects of the self-sensing anti-detachment structure and status monitoring method of the intelligent latch of the present invention are as follows: By capturing the distance change between the latch body and the fastening component in real time through a distance detection sensor, and in conjunction with a dynamic detection frequency adjustment mechanism triggered by a vibration sensor, it can respond immediately when the latch experiences micron-level loosening. This completely changes the passive situation of traditional mechanical latches, which cannot detect micro-loosening and are only discovered when the latch falls off, providing an early warning basis for interface stability. The anti-detachment component can actively drive the locking component to tighten the locking rod when loosening exceeds the threshold, pulling the data cable plug and socket tight and resetting, achieving an upgrade from "mechanical passive limiting" to "intelligent active correction," effectively resisting industrial environmental vibrations. The anti-loosening capability is reduced due to dynamic and temperature / humidity fluctuations; by recording alarm times, calculating normal working hours, and summarizing the average service life under different scenarios, the remaining lifespan of the latch can be estimated; the detection frequency is dynamically increased by combining the number of alarms, and with the fault early warning function, the operation and maintenance mode is transformed from "post-fault repair" to "preventive maintenance", which significantly reduces operation and maintenance costs and equipment downtime risks; the remote alarm unit with integrated wireless data transmission can seamlessly connect the latch status to the gateway monitoring system, meeting the wireless networking and remote operation and maintenance needs of industrial scenarios; at the same time, the sealing design of the protective sleeve and ring groove improves the sensor detection accuracy and the structure's resistance to dust erosion, making it suitable for complex industrial environments. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the self-sensing anti-detachment structure of the smart lock of the present invention;

[0025] Figure 2 This is a system architecture diagram of the self-sensing anti-detachment structure of the smart lock of the present invention;

[0026] Figure 3 This is a schematic diagram illustrating the steps of the intelligent lock status monitoring method of the present invention.

[0027] Among them, 1-locking body, 11-first receiving cavity, 12-locking cavity, 13-gear meshing cavity, 14-motor cavity, 15-limiting hole, 16-ring groove, 17-control panel, 171-initialization button, 18-bolt cavity, 181-unlocking bolt, 182-unlocking gear, 2-fastening component, 21-second receiving cavity, 22-locking rod, 23-limiting rod, 24-protective sleeve, 25-ring detection plate, 3-sensing component, 31-distance detection sensor, 32-vibration sensor, 4-anti- 41-Miniature motor, 42-Locking component, 43-Driving gear, 44-Synchronous drive gear, 45-Driven gear, 5-Controller, 51-Motor control module, 52-Distance detection module, 53-Vibration monitoring module, 54-Parameter setting module, 6-Power supply module, 7-Data cable plug, 8-Data cable socket, 9-Alarm module, 91-Local alarm unit, 911-LED indicator light, 912-Buzzer, 92-Remote alarm unit, 921-Wireless data transmission module. Detailed Implementation

[0028] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] like Figures 1-2 As shown, the present invention is a self-sensing anti-detachment structure for a smart lock, including a lock body 1, a fastening component 2, a sensing component 3, an anti-detachment component 4, a controller 5, and a power supply module 6; the lock body 1 has a first receiving cavity 11 at its center for accommodating a data cable plug 7;

[0030] The locking body 1 is provided with the anti-detachment component 4, the controller 5, and the power supply module 6. The power supply module 6 is electrically connected to the controller 5. The anti-detachment component 4 includes a micro motor 41 and a locking member 42. At least two locking cavities 12 are provided at equal angles around the first receiving cavity 11. The locking body 1 is provided with the micro motor 41. The locking member 42 is installed in the locking cavity 12 through bearings. The micro motor 41 drives the locking member 42 to rotate. The locking member 42 is a cylindrical body with internal threads. The fastening member 2 is provided with a second receiving cavity 21 for accommodating the data cable socket 8. The fastening member 2 is provided with a plurality of locking rods 22 on the side near the locking body 1. The number of locking rods 22 is the same as the number of locking members 42 and their positions correspond one-to-one. The locking rods 22 are provided with external threads and are threadedly connected to the locking members 42.

[0031] The sensing component 3 includes a distance detection sensor 31. A plurality of distance detection sensors 31 are evenly arranged around the center on the side of the latch body 1 near the fastening member 2. The fastening member 2 is provided with an annular detection plate 25. The distance detection sensor 31 detects the distance between itself and the annular detection plate. The distance detection sensor 31 is electrically connected to the controller 5. The micro motor 41 is electrically connected to the controller 5.

[0032] When the micro motor 41 is started, it drives the locking member 42 to rotate. The rotation of the locking member 42 causes the locking rod 22 to tighten and penetrate into the locking member 42, pulling the locking body 1 and the fastening member 2 closer together. The locking body 1 and the fastening member 2 tighten the data cable plug 7 and the data cable socket 8 to prevent them from falling off.

[0033] Furthermore, the distance detection sensor 31 performs distance detection at a fixed frequency and feeds back the measured distance to the controller 5. The sensing component 3 is also equipped with a vibration sensor 32 electrically connected to the controller 5. The vibration sensor 32 is located inside the latch body 1. When the vibration sensor 32 detects that the change in any of the vibration frequency, amplitude, vibration frequency change range, or amplitude change range exceeds its respective threshold, the controller 5 controls the distance detection sensor 31 to increase its detection frequency and continue to perform distance detection, continuously feeding back the measured distance to the controller 5 until the above indicators are lower than their respective thresholds, at which point the preset detection frequency is restored.

[0034] Furthermore, the anti-detachment component 4 also includes a driving gear 43, a synchronous drive gear 44, and a driven gear 45. The locking body 1 has a gear meshing cavity 13 and a motor cavity 14. The micro motor 41 is located in the motor cavity 14, and its shaft extends into the gear meshing cavity 13 and connects to the driving gear 43. The driven gear 45 is fixedly connected to the locking member 42. The gear meshing cavity 13 has a bearing, and the inner ring of the bearing has the synchronous drive gear 44. The inner side of the synchronous drive gear 44 has a double-layer internal gear, which meshes with the driving gear 43 and the driven gear 45 respectively. The shaft of the micro motor 41 drives the driving gear 43 to rotate, the driving gear 43 drives the synchronous drive gear 44 to rotate, and the synchronous drive gear 44 drives several driven gears 45 to rotate. Each driven gear 45 drives each locking member 42 to rotate synchronously. Synchronous drive prevents the locking members 42 from rotating asynchronously, thus avoiding jamming.

[0035] The locking body 1 also has a bolt cavity 18, in which an unlocking bolt 181 is installed via a bearing. The end of the unlocking bolt 181 extends into the gear meshing cavity 13 and is connected to an unlocking gear 182. The unlocking gear 182 meshes with the synchronous drive gear 44. The bolt cavity 18 is covered with a protective cover. When the micro motor 41 malfunctions and cannot drive the locking body 1 and the fastening member 2 to separate, the protective cover can be opened, and the unlocking bolt 181 can be turned with a screwdriver. The unlocking bolt 181 will then drive the synchronous drive gear 44 to rotate.

[0036] Furthermore, a limiting hole 15 is provided on one side of the locking cavity 12, and a plurality of limiting rods 23 are provided on the fastening member 2. The number of limiting rods 23 and the limiting holes 15 are the same and their positions correspond one-to-one.

[0037] Furthermore, the locking cavity 12 is provided with two bearings for installing the locking member 42, both of which are angular contact ball bearings, and the two angular contact ball bearings are arranged opposite to each other.

[0038] Furthermore, the fastening component 2 also includes a protective sleeve 24, which is cylindrical and located on the side of the fastening component 2 near the locking body 1. The locking body 1 has an annular groove 16 on the side near the fastening component 2. The protective sleeve 24 is inserted into the annular groove 16 and covers the gap between the data cable plug 7 and the data cable socket 8.

[0039] Furthermore, the distance detection sensor 31 is disposed on the side of the latch body 1 facing the fastening member 2, the distance detection sensor 31 is located inside the annular groove 16, and the annular detection plate 25 on the fastening member 2 is located inside the protective sleeve 24.

[0040] Furthermore, the controller 5 is equipped with a motor control module 51, a distance detection module 52, and a vibration monitoring module 53; the motor control module 51 is used to control the speed, rotation direction, and start / stop of the micro motor 41; the distance detection module 52 is used to acquire the data measured by the distance detection sensor 31, compare it with the preset anti-fall threshold, and then trigger the start / stop of the micro motor 41 through the motor control module 51; the vibration monitoring module 53 is used to monitor the vibration data fed back by the vibration sensor 32.

[0041] like Figure 3 As shown, a status monitoring method for a smart lock, applied to the self-sensing anti-detachment structure of the aforementioned smart lock, includes the following steps:

[0042] Step S1: After connecting the data cable plug 7 to the data cable socket 8, press the initialization button 171. The distance detection sensor 31 performs the initial distance detection and feeds back the initially measured distance to the parameter setting module 51 of the controller 5 to confirm the initial distance parameter. The initialization button 171 is located on the control panel 17 on one side of the latch body 1.

[0043] Step S2: The distance detection sensor 31 performs distance detection at a fixed frequency and calculates the difference between the measured distance and the initial distance. The fixed frequency is once per minute by default.

[0044] Step S3: When the vibration sensor 32 detects that the change in any one of the vibration frequency, amplitude, vibration frequency change range, or amplitude change range exceeds its respective threshold, the controller 5 controls the distance detection sensor 31 to increase its detection frequency and continuously perform distance detection, continuously feeding back the measured distance to the controller 5 until the above indicators are lower than their respective thresholds, at which point the preset detection frequency is restored; the detection frequency of the distance detection sensor 31 is increased to once per second;

[0045] Step S4: When the difference between the distance measured by the distance detection sensor 31 and the initial distance set by the parameter setting module 54 exceeds the preset anti-drop threshold, the controller 5 activates the anti-drop component 4, the micro motor 41 of the anti-drop component 4 starts, driving the locking member 42 to rotate. The rotation of the locking member 42 causes the locking rod 22 to tighten and penetrate into the locking member 42. The locking body 1 and the fastening member 2 tighten the data cable plug and data cable socket to prevent them from falling off, until the difference between the distance measured by the distance detection sensor 31 and the initial distance is less than the anti-drop threshold, the micro motor 41 is turned off.

[0046] Step S5: After the micro motor 41 is started, if the difference between the distance measured by the distance detection sensor 31 and the initial distance is greater than the anti-fall threshold for more than five seconds, it is determined that an abnormal state has occurred and the initial distance cannot be restored. The currently measured distance is set as the temporary initial distance, and the alarm module 9 is activated to prompt the user to manually inspect or replace the smart lock. When the difference between the newly measured distance data and the temporary initial distance is lower than the anti-fall threshold, the micro motor 41 is turned off. After the maintenance personnel troubleshoot the fault, they can press the initialization button 171 to reset the initial distance and deactivate the alarm.

[0047] Step S6: Based on the number of times the alarm module 9 has been activated, the distance detection sensor 31 increases the detection frequency. Each time the alarm module 9 is triggered, the new detection frequency is 1.5 times the original detection frequency. The time of triggering the alarm is recorded. The normal working duration of the smart lock from initialization to triggering the alarm is calculated. The data is summarized and recorded as the average service life of the smart lock under different application scenarios. When the service life of the subsequently replaced smart lock reaches the average service life, an early warning is issued to remind the user to replace the smart lock.

[0048] Furthermore, the alarm module 9 mentioned in step S5 includes a local alarm unit 91 and a remote alarm unit 92. The local alarm unit 91 is implemented by an LED indicator 911 and a buzzer 912 integrated on the surface of the control panel 17. When an abnormal state of failure is detected, the LED indicator 911 emits a red flashing signal, and the buzzer 912 emits an intermittent alarm sound. The remote alarm unit 92 pushes the abnormal information to the terminal device or remote monitoring platform through the wireless data transmission module 62 of the controller 5. After receiving the information, the terminal device or remote monitoring platform reminds the user to go for repair through pop-up windows, SMS or APP notifications.

[0049] The beneficial effects of the self-sensing anti-detachment structure and status monitoring method of the intelligent latch of the present invention are as follows: By capturing the distance change between the latch body and the fastening component in real time through a distance detection sensor, and in conjunction with a dynamic detection frequency adjustment mechanism triggered by a vibration sensor, it can respond immediately when the latch experiences micron-level loosening. This completely changes the passive situation of traditional mechanical latches, which cannot detect micro-loosening and are only discovered when the latch falls off, providing an early warning basis for interface stability. The anti-detachment component can actively drive the locking component to tighten the locking rod when loosening exceeds the threshold, pulling the data cable plug and socket tight and resetting, achieving an upgrade from "mechanical passive limiting" to "intelligent active correction," effectively resisting industrial environmental vibrations. The anti-loosening capability is reduced due to dynamic and temperature / humidity fluctuations; by recording alarm times, calculating normal working hours, and summarizing the average service life under different scenarios, the remaining lifespan of the latch can be estimated; the detection frequency is dynamically increased by combining the number of alarms, and with the fault early warning function, the operation and maintenance mode is transformed from "post-fault repair" to "preventive maintenance", which significantly reduces operation and maintenance costs and equipment downtime risks; the remote alarm unit with integrated wireless data transmission can seamlessly connect the latch status to the gateway monitoring system, meeting the wireless networking and remote operation and maintenance needs of industrial scenarios; at the same time, the sealing design of the protective sleeve and ring groove improves the sensor detection accuracy and the structure's resistance to dust erosion, making it suitable for complex industrial environments.

[0050] The present invention and its embodiments have been described above. This description is not restrictive. The accompanying drawings are only one embodiment of the present invention. The actual content is not limited thereto. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A self-sensing anti-detachment structure for an intelligent lock, characterized in that, It includes a locking body (1), a fastening component (2), a sensing component (3), an anti-detachment component (4), a controller (5), and a power supply module (6); the locking body (1) has a first receiving cavity (11) at its center for accommodating a data cable plug (7); The locking body (1) is provided with the anti-detachment component (4), the controller (5), and the power supply module (6). The power supply module (6) is electrically connected to the controller (5). The anti-detachment component (4) includes a micro motor (41) and a locking member (42). At least two locking cavities (12) are provided at equal angles around the first receiving cavity (11). The locking body (1) is provided with the micro motor (41). The locking member (42) is installed in the locking cavity (12) by bearings. The motor (41) shaft drives the locking member (42) to rotate. The locking member (42) is a cylindrical body with internal threads. The fastening member (2) is provided with a second receiving cavity (21) for accommodating the data cable socket (8). The fastening member (2) is provided with a plurality of locking rods (22) on the side near the locking body (1). The number of locking rods (22) is the same as that of the locking member (42) and their positions correspond one-to-one. The locking rods (22) are provided with external threads and are threadedly connected to the locking member (42). The sensing component (3) includes a distance detection sensor (31), which is located on the side of the latch body (1) near the fastening member (2). The fastening member (2) is provided with an annular detection plate (25). The distance detection sensor (31) is electrically connected to the controller (5), and the micro motor (41) is electrically connected to the controller (5). When the micro motor (41) is started, it drives the locking member (42) to rotate. The rotation of the locking member (42) causes the locking rod (22) to tighten and penetrate into the locking member (42), pulling the locking body (1) and the fastening member (2) closer together. The locking body (1) and the fastening member (2) tighten the data cable plug (7) and the data cable socket (8) to prevent them from falling off.

2. The self-sensing anti-detachment structure of an intelligent lock according to claim 1, characterized in that, The distance detection sensor (31) performs distance detection at a fixed frequency and feeds back the measured distance to the controller (5). The sensing component (3) is also equipped with a vibration sensor (32) electrically connected to the controller (5). The vibration sensor (32) is located inside the latch body (1). When the vibration sensor (32) detects that the change in any of the vibration frequency, amplitude, vibration frequency change range, or amplitude change range exceeds its respective threshold, the controller (5) controls the distance detection sensor (31) to increase the detection frequency of the distance detection sensor (31) and continue to perform distance detection, continuously feeding back the measured distance to the controller (5) until the above indicators are lower than their respective thresholds, and then the preset detection frequency is restored.

3. The self-sensing anti-detachment structure of an intelligent lock according to claim 2, characterized in that, The anti-fall-off component (4) further includes a drive gear (43), a synchronous drive gear (44), and a driven gear (45). The locking body (1) is provided with a gear meshing cavity (13) and a motor cavity (14). The micro motor (41) is located in the motor cavity (14). The shaft of the micro motor (41) extends into the gear meshing cavity (13) and is connected to the drive gear (43). The driven gear (45) is fixedly connected to the locking member (42). The gear meshing cavity (13) is provided with a bearing. The synchronous drive gear (44) is provided in a ring. The inner side of the synchronous drive gear (44) is provided with a double-layer internal gear, which meshes with the driving gear (43) and the driven gear (45) respectively. The shaft of the micro motor (41) drives the driving gear (43) to rotate. The driving gear (43) drives the synchronous drive gear (44) to rotate. The synchronous drive gear (44) drives a number of driven gears (45) to rotate. Each driven gear (45) drives each locking member (42) to rotate synchronously.

4. The self-sensing anti-detachment structure of an intelligent lock according to claim 1, characterized in that, The locking cavity (12) has a limiting hole (15) on one side, and the fastening member (2) has a plurality of limiting rods (23). The number of limiting rods (23) is the same as the number of limiting holes (15) and their positions correspond one-to-one.

5. The self-sensing anti-detachment structure of an intelligent lock according to claim 1, characterized in that, The locking cavity (12) contains two bearings for installing the locking member (42), both of which are angular contact ball bearings, and the two angular contact ball bearings are arranged opposite to each other.

6. The self-sensing anti-detachment structure of an intelligent lock according to claim 1, characterized in that, The fastening component (2) also includes a protective sleeve (24), which is cylindrical. The protective sleeve (24) is located on the side of the fastening component (2) near the locking body (1). The locking body (1) is provided with an annular groove (16) on the side near the fastening component (2). The protective sleeve (24) is inserted into the annular groove (16) and covers the gap between the data cable plug (7) and the data cable socket (8).

7. The self-sensing anti-detachment structure of an intelligent lock according to claim 6, characterized in that, The distance detection sensor (31) is located on the side of the latch body (1) facing the fastener (2). The distance detection sensor (31) is located inside the annular groove (16). The annular detection plate (25) on the fastener (2) is located inside the protective sleeve (24).

8. The self-sensing anti-detachment structure of an intelligent lock according to claim 1, characterized in that, The controller (5) is equipped with a motor control module (51), a distance detection module (52), and a vibration monitoring module (53). The motor control module (51) is used to control the speed, rotation direction, and start and stop of the micro motor (41). The distance detection module (52) is used to acquire the data measured by the distance detection sensor (31), compare it with the preset anti-fall threshold, and then trigger the start and stop of the micro motor (41) through the motor control module (51). The vibration monitoring module (53) is used to monitor the vibration data fed back by the vibration sensor (32).

9. A method for monitoring the status of a smart lock, applied to the self-sensing anti-detachment structure of a smart lock as described in any one of claims 1-8, characterized in that, Includes the following steps: Step S1: After connecting the data cable plug (7) to the data cable socket (8), press the initialization button (171). The distance detection sensor (31) performs the initial distance detection and feeds back the initially measured distance to the parameter setting module (54) of the controller (5) to confirm the initial distance parameter. The initialization button (171) is located on the control panel (17) on one side of the latch body (1). Step S2: The distance detection sensor (31) performs distance detection at a fixed frequency and calculates the difference between the measured distance and the initial distance. The fixed frequency is once per minute by default. Step S3: When the vibration sensor (32) detects that the change in any of the vibration frequency, amplitude, vibration frequency change range, or amplitude change range exceeds its respective threshold, the controller (5) controls the distance detection sensor (31) to increase the detection frequency of the distance detection sensor (31) and continuously perform distance detection, continuously feeding back the measured distance to the controller (5) until the above indicators are lower than their respective thresholds, and then restoring the preset detection frequency; the detection frequency of the distance detection sensor (31) is increased to once per second; Step S4: When the distance detected by the distance detection sensor (31) exceeds the preset anti-drop threshold, the controller (5) activates the anti-drop component (4), the micro motor (41) of the anti-drop component (4) is activated, driving the locking member (42) to rotate. The locking member (42) rotates, causing the locking rod (22) to tighten and penetrate into the locking member (42). The locking body (1) and the fastening member (2) tighten the data cable plug and data cable socket to prevent them from falling off until the distance detected by the distance detection sensor (31) is less than the anti-drop threshold, at which point the micro motor (41) is turned off. Step S5: After the micro motor (41) is started, if the distance measured by the distance detection sensor (31) is greater than the anti-fall threshold for more than five seconds, it is determined that an abnormal state has occurred and the initial distance cannot be restored. The currently measured distance is set as the temporary initial distance, and the alarm module (9) is activated to prompt the user to manually inspect or replace the smart lock. When the difference between the newly measured distance data and the temporary initial distance is lower than the anti-fall threshold, the micro motor (41) is turned off. After the maintenance personnel troubleshoot the fault, they can press the initialization button (171) to reset the initial distance and deactivate the alarm. Step S6: Based on the number of times the alarm module (9) has been activated, the distance detection sensor (31) increases the detection frequency. Each time the alarm module (9) is triggered, the new detection frequency is 1.5 times the original detection frequency. The time of triggering the alarm is recorded. The normal working duration of the smart lock from initialization to triggering the alarm is calculated. The data is summarized and the average service life of the smart lock under different application scenarios is recorded. When the service life of the subsequently replaced smart lock reaches the average service life, an early warning is issued to remind the user to replace the smart lock.

10. The method for monitoring the status of an intelligent latch according to claim 9, characterized in that, The alarm module (9) mentioned in step S5 includes a local alarm unit (91) and a remote alarm unit (92). The local alarm unit (91) is implemented by an LED indicator (911) and a buzzer (912) integrated on the surface of the control panel (17). When an abnormal state of failure is detected, the LED indicator (911) emits a red flashing signal, and the buzzer (912) emits an intermittent alarm sound. The remote alarm unit (92) pushes the abnormal information to the terminal device or remote monitoring platform through the wireless data transmission module (921). After receiving the information, the terminal device or remote monitoring platform reminds the user to go for repair through pop-up window, SMS or APP notification.

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