Vehicle intelligent security lock with biological recognition and safety detection functions

Abstract

The invention discloses a vehicle intelligent security lock with biological recognition and safety detection functions. The vehicle intelligent security lock comprises a lock shell, a spring bolt, a transmission assembly, a mechanical driving assembly, a driving motor, a coupler knuckle, a linkage assembly, an electromagnet, a biological recognition component and a safety detection component. A closed partition cavity is formed in the lock shell, a lock groove is formed between the assembling part and the locking part, and the spring bolt achieves telescopic locking through worm and gear transmission. The coupler knuckle is nested with a hook groove in the side wall of the lock hole to form an anti-prying structure; the electromagnet controls the linkage assembly to adjust the state of the coupler knuckle. The biological recognition part supports fingerprint, face and password verification, and the safety detection part monitors the pressure of the spring bolt and the air tightness of the partition cavity in real time and triggers an alarm when abnormity occurs. Mechanical and electrical dual-mode driving is adopted, and mechanical emergency unlocking can be achieved during power failure. The system has the advantages of high safety, intelligent monitoring and convenient operation, is suitable for the scenes of motor homes, boxcars, special vehicles and the like, and effectively improves the anti-theft capability.

Description

Technical Field

[0001] The present invention relates to the technical field of security locks, in particular to an intelligent vehicle security lock with biometric identification and safety detection functions. Background Art

[0002] With the continued growth in vehicle ownership, the security of vehicles and their belongings is becoming increasingly prominent. Removable components like RV doors, truck compartment doors, and external spare tires are particularly vulnerable to theft. Traditional mechanical locks are simple in structure, offer limited anti-pry capabilities, and lack real-time monitoring capabilities, making it difficult for vehicle owners to detect any breaches. Furthermore, traditional locks rely on physical keys, creating the risk of key loss, duplication, or brute force attacks. Their security and convenience fall short of meeting the demands of modern vehicle security.

[0003] In recent years, biometric technologies (such as fingerprint and facial recognition) and electronic security detection technologies have been gradually applied to the lock field. Some smart lock products have achieved keyless opening and status monitoring functions by integrating electronic drive, sensor and other modules. However, existing smart locks for vehicles still have the following technical defects:

[0004] 1. Insufficient structural reliability: The transmission mechanism of most electronic locks lacks a self-locking function and is prone to failure under power outages or external force impacts. In addition, the anti-pry design of the lock tongue is weak and difficult to resist violent disassembly.

[0005] 2. Single security monitoring: Most existing locks only monitor the position of the lock tongue or the electrical status, and cannot comprehensively determine whether the lock body has been physically damaged (such as cutting or drilling), and lack an on-site alarm mechanism.

[0006] 3. Emergency unlocking is inconvenient: When the battery of the electronic lock is exhausted or the system fails, the mechanical backup unlocking structure is complex and the operation is cumbersome, and even the lock body needs to be destroyed for emergency opening.

[0007] 4. Spatial layout redundancy: The integration of multiple components results in a lock body that is too large, making it difficult to fit into the vehicle’s narrow installation space. Furthermore, the transmission components easily interfere with the movement of the lock tongue, affecting long-term stability.

[0008] To address the above issues, there is an urgent need for an intelligent vehicle security lock that integrates biometric identification, real-time security monitoring, and mechanical and electronic dual-mode drive, which can ensure high security while taking into account compactness, reliability, and convenience of emergency operation. Summary of the Invention

[0009] In response to the above-mentioned shortcomings in the existing technology, the purpose of the present invention is to provide a vehicle-use intelligent security lock with biometric recognition and security detection functions, which is significantly superior to traditional vehicle locks in terms of safety, reliability, convenience and intelligence. It can be widely used in RVs, logistics transportation, special vehicles and other fields, effectively improving the anti-theft capabilities of vehicles and their on-board property.

[0010] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a vehicle-use intelligent security lock with biometric identification and safety detection functions, comprising:

[0011] A lock shell is provided with a sealed compartment, the outer side of the lock shell is provided with an outwardly protruding assembly portion and a locking portion, a lock groove is provided between the assembly portion and the locking portion, an assembly cavity is provided on the inner side of the assembly portion, a lock hole arranged toward the lock groove is provided in the locking portion, and a hook groove is provided on the side wall of the lock hole.

[0012] A lock tongue and a transmission assembly, wherein the lock tongue is slidably installed in the assembly part and inserted into the lock hole through the lock slot. The inner end of the lock tongue is equipped with a transmission rack. The transmission assembly includes a transmission gear and a matching combination of a worm wheel and a worm. The worm wheel and the transmission gear maintain a dynamic fixed connection, and the transmission gear and the rack maintain a matching meshing connection.

[0013] A mechanical drive assembly and a drive motor, wherein the mechanical drive assembly includes a lock body and a lock core assembled into the lock body, wherein the lock body is assembled to the outer side surface of the assembly portion and extends into the assembly cavity, and the lock core and the drive motor are both linked and assembled with the worm.

[0014] A hook tongue, a linkage assembly and an electromagnet, wherein the hook tongue is assembled to the outer end of the lock tongue and can be nested and locked with the hook groove, the linkage assembly is assembled into the lock tongue, the hook tongue and the mechanical drive assembly are all linked with the linkage assembly, and the electromagnet is assembled into the assembly cavity and controls the movement of the linkage assembly by the on and off state of the power.

[0015] A biometric identification component and a safety detection component are provided. The biometric identification component is assembled to the outer side surface of the assembly portion. The safety detection component is used to detect the action pressure of the lock tongue and the air tightness of the compartment.

[0016] On the basis of the above technical solutions, in order to ensure that the biometric identification component can be effectively installed on the outer side of the assembly part, realize the verification of the unlocking person's biometric information, and provide a password unlocking function, the following technical solutions are provided.

[0017] The outer side surface of the assembly part is provided with an assembly hole A, an assembly hole B, and an assembly hole C which are connected to the assembly cavity. The biometric identification component includes a camera and a fingerprint sensor which are respectively assembled in the assembly hole A and the assembly hole B. The control panel is assembled in the assembly hole C.

[0018] On the basis of the above technical solutions, in order to ensure that the safety detection component can effectively detect the pressure of the lock tongue and the air tightness of the compartment, and provide an on-site alarm function, the following technical solutions are provided.

[0019] An assembly hole D is provided on the outer side surface of the assembly part and is connected to the assembly cavity. An assembly groove is provided on the inner end of the lock hole. The safety detection component includes a pressure sensor, an air pressure sensor, and a buzzer. The pressure sensor is assembled into the assembly groove and is kept in contact with the end of the lock tongue extending into the lock hole. The air pressure sensor is assembled into the assembly cavity and is connected to the partition cavity. The buzzer is assembled into the assembly hole D.

[0020] On the basis of the above technical solution, in order to ensure that the lock tongue can telescopically slide in the assembly part and avoid spatial motion interference with the transmission component, the hook tongue can also be retracted to the assembly part when the lock tongue is in the retracted state. The following technical solution is provided.

[0021] The locking tongue comprises two groups arranged side by side. The assembly portion is provided with a guide through hole for maintaining sliding insertion with the locking tongue. The outer end of the guide through hole is provided with a receiving groove for nesting and matching with the hook tongue.

[0022] The transmission gear includes two groups distributed coaxially, and the transmission gear is arranged between the two groups of lock tongues. Each group of lock tongues is provided with two groups of parallel distribution and use to accommodate the transmission gear. The transmission rack is fixed in one group of the use grooves. The lock tongue is also provided with a strip-shaped through groove. The axis center of the worm is fixed with a transmission shaft arranged in the strip-shaped through groove.

[0023] On the basis of the above technical solutions, in order to ensure that the transmission assembly can be stably installed in the assembly cavity and to achieve effective control of the retractable posture of the lock tongue, the following technical solutions are provided.

[0024] The worm gear is arranged between the two sets of lock tongues, and a driving bevel gear A is fixedly connected to the axis of the worm gear. The axes of the two sets of transmission gears are fixedly connected to transmission bevel gears A that are meshed with the driving bevel gear A. The two sets of transmission bevel gears A are symmetrically arranged.

[0025] On the basis of the above technical solution, in order to ensure that the drive motor can realize the linkage combination with the worm, the following technical solution is provided.

[0026] A driving bevel gear B is fixedly connected to the output shaft of the driving motor, and a driving bevel gear B is fixedly connected to the transmission shaft. The transmission bevel gear B is meshed with the driving bevel gear B.

[0027] On the basis of the above technical solutions, in order to ensure that the mechanical drive assembly can be effectively assembled in the assembly part and realize effective driving of the worm, the following technical solutions are provided.

[0028] A telescopic through hole is provided on the outer side surface of the assembly portion and is connected to the assembly cavity. The lock body is assembled into the telescopic through hole in a relatively sliding manner. A spline shaft is provided at the axis center of the lock core. A spur gear A is slidably inserted on the spline shaft and rotatably installed in the assembly cavity. A spur gear B is fixedly connected to the transmission shaft and is meshed with the spur gear A.

[0029] On the basis of the above technical solution, in order to ensure that the hook tongue can be assembled in the lock tongue in a telescopic sliding posture, ensure that the linkage assembly is assembled in the lock tongue and realize the adjustment of the telescopic posture of the hook tongue, the following technical solution is provided.

[0030] A radial guide groove and an axial guide groove are provided in the lock tongue. Two groups of symmetrically arranged hook tongues are slidably installed in the radial guide groove. The two groups of hook tongues are connected by a tension spring. The outer side surface of the hook tongue is provided with an outer wedge surface that cooperates with the hook groove, and the inner side surface of the hook tongue is provided with an inner wedge surface.

[0031] The linkage assembly includes a driving rod, a driving key, a connecting plate, and an action plate. The driving rod is slidably installed in the axial guide groove, and the inner end of the driving rod is equipped with a supporting spring that abuts the axial guide groove. The driving key is fixed to the outer end of the driving rod, and a driving wedge surface that abuts the inner wedge surface is provided on the side wall of the driving key. The driving rods arranged in the two groups of lock tongues are fixedly connected through a connecting plate, and a permanent magnet is fixed on the connecting plate. The electromagnet is fixedly installed in the assembly cavity and maintains a coaxial arrangement with the permanent magnet. The action plate is also fixed on one group of the driving rods, and the action plate acts in association with the lock body.

[0032] On the basis of the above technical solution, in order to trigger the operation of the linkage assembly through the lifting and lowering movement of the lock body, thereby realizing the telescopic adjustment of the hook tongue, the following technical solution is provided.

[0033] The mechanical drive assembly also includes a guide rod, a return spring, and a connecting seat. The guide rod is fixedly installed in the assembly cavity, the connecting seat is slidably installed on the guide rod and fixedly connected to the lock body, the return spring is assembled on the guide rod and connected to the connecting seat, and an action buckle arranged above the action plate is fixedly connected to the connecting seat, and an action inclined groove cooperating with the action buckle is provided on the connecting plate.

[0034] Beneficial effects of the present invention:

[0035] 1. Multiple security protections, strong anti-pry and anti-destruction capabilities, adopts a double lock tongue and hook tongue linkage structure. After the lock tongue is inserted into the keyhole, the hook tongue automatically pops out and embeds into the hook groove, forming a double lock, effectively preventing external prying; the worm gear transmission mechanism has a self-locking feature and cannot be reversed after locking, ensuring that the lock tongue remains in a stable locked state in the event of unauthorized operation. The compartment air tightness monitoring design means that the compartment inside the lock shell is evacuated or filled with inert gas. Once it is damaged (such as drilling or cutting), the air pressure sensor immediately triggers an alarm, enhancing the active anti-theft capability.

[0036] 2. Intelligent biometric recognition and password unlocking, combining security and convenience, integrates three authentication methods: fingerprint recognition, face recognition and password input. Users can verify their identity in any of the three ways, avoiding the risk of traditional keys being lost or copied.

[0037] 3. Mechanical and electronic dual-mode drive, emergency unlocking can still be achieved in the event of power failure. Under normal conditions, electric unlocking is achieved by the drive motor and electromagnet, which responds quickly and is easy to operate. When the battery is out of power or the electronic system fails, the mechanical key can be used to press the lock body, the linkage hook tongue is retracted and the worm is driven to operate, realizing pure mechanical emergency unlocking and avoiding the risk of locking.

[0038] 4. Real-time security monitoring, active early warning and anti-theft, the pressure sensor monitors the locking tongue's compression force in real time, and the air pressure sensor continuously detects the compartment pressure. Once an abnormality is detected, it immediately triggers an audible and visual alarm and notifies the owner.

[0039] 5. Compact structural design avoids motion interference. The dual lock tongues are arranged in parallel and synchronized with bevel gears, achieving simultaneous extension and retraction of the two sets of lock tongues within a limited space, increasing locking force while reducing space. The clearance groove and strip-shaped through-slot design prevent interference between the transmission gear, worm, and other components and the lock tongue, ensuring long-term stability and reliability.

[0040] 6. It has a wide range of applicable scenarios and flexible installation. It is suitable for various vehicle-mounted scenarios such as truck compartment doors, external spare tires, tool boxes, etc. It adopts the internal installation and fixing method to prevent external violent disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a structural schematic diagram of the present invention;

[0042] Figure 2 It is a structural diagram of the supporting fasteners;

[0043] Figure 3 It is a structural diagram of the key components of the lock housing;

[0044] Figure 4 for Figure 3 Structural diagram from another perspective;

[0045] Figure 5It is a schematic diagram of the structure of the lock housing when it is cut along the so-called axis of the lock tongue;

[0046] Figure 6 This is a schematic diagram of the structure of the present invention after removing the lock housing;

[0047] Figure 7 for Figure 6 Structural diagram from another perspective;

[0048] Figure 8 A schematic diagram of the structure of the driving motor, mechanical drive components and transmission components;

[0049] Figure 9 This is a structural diagram of the worm gear and transmission gear in a disassembled state;

[0050] Figure 10 It is a structural diagram of the lock tongue in a cutaway state;

[0051] Figure 11 for Figure 10 Structural diagram from another perspective;

[0052] Figure 12 This is a schematic diagram of the structure of the hook tongue and linkage assembly installed in the lock tongue;

[0053] Figure 13 A structural diagram of the linkage component.

[0054] In the figure: 1 lock housing, 11 compartment, 12 assembly portion, 121 assembly cavity, 122 assembly hole A, 123 assembly hole B, 124 assembly hole C, 125 assembly hole D, 126 guide through hole, 127 accommodating groove, 128 telescopic through hole, 13 locking portion, 131 lock hole, 132 hook groove, 133 assembly groove, 14 lock groove, 15 mounting plate, 21 lock tongue, 211 transmission rack, 212 give way groove, 213 strip through groove, 214 arc groove, 215 radial guide groove, 216 axial guide groove, 217 connecting through groove, 221 transmission gear, 222 worm gear, 223 worm, 224 transmission shaft, 225 drive bevel gear A, 226 transmission bevel gear A, 227 transmission bevel gear B, 228 spur gear B, 31 lock body, 32 lock cylinder, 321 spline shaft, 322 spur gear A, 33 guide rod, 34 return spring, 35 connecting seat, 36 action buckle, 4 drive motor, 41 drive bevel gear B, 51 hook tongue, 511 tension spring, 512 outer wedge surface, 513 inner wedge surface, 521 drive rod, 522 drive key, 523 connecting plate, 524 action plate, 525 support spring, 526 drive wedge surface, 527 permanent magnet, 528 action bevel slot, 53 electromagnet, 61 camera, 62 fingerprint sensor, 63 control panel, 71 pressure sensor, 72 buzzer, 8 fasteners, 81 buttonhole. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0056] Example 1

[0057] See also Figure 1-Figure 7 , a vehicle-use intelligent security lock with biometric identification and safety detection functions, comprising:

[0058] The lock shell 1 has a sealed compartment 11 therein, and an outwardly convex assembly portion 12 and a locking portion 13 are provided on the outer side of the lock shell 1. A lock groove 14 is provided between the assembly portion 12 and the locking portion 13. An assembly cavity 121 is provided on the inner side of the assembly portion 12, and a lock hole 131 arranged toward the lock groove 14 is provided in the locking portion 13. A hook groove 132 is provided on the side wall of the lock hole 131.

[0059] The lock tongue 21 and the transmission assembly are slidingly installed in the assembly part 12 and inserted into the lock hole 131 through the lock slot 14. The inner end of the lock tongue 21 is equipped with a transmission rack 211. The transmission assembly includes a transmission gear 221 and a matching combination of a worm wheel 222 and a worm 223. The worm wheel 222 maintains a dynamic fixed connection with the transmission gear 221, and the transmission gear 221 maintains a matching meshing with the rack.

[0060] Mechanical drive assembly, drive motor 4, the mechanical drive assembly includes a lock body 31 and a lock core 32 assembled into the lock body 31, the lock body 31 is assembled to the outer side surface of the assembly part 12 and extends into the assembly cavity 121, the lock core 32 and the drive motor 4 are both linked and combined with the worm 223.

[0061] The hook tongue 51, the linkage assembly and the electromagnet 53, the hook tongue 51 is assembled to the outer end of the lock tongue 21 and can be nested and locked with the hook groove 132, the linkage assembly is assembled into the lock tongue 21, the hook tongue 51 and the mechanical drive assembly are all linked with the linkage assembly, the electromagnet 53 is assembled into the assembly cavity 121 and controls the movement of the linkage assembly by the on and off state of the power.

[0062] The biometric identification component and the safety detection component are assembled to the outer side surface of the assembly portion 12 , and the safety detection component is used to detect the action pressure of the lock tongue 21 and the airtightness of the compartment 11 .

[0063] This vehicle smart security lock can be used to lock the door of a truck compartment or an external spare tire. It is installed in a specific position from the inside to avoid disassembly from the outside. Therefore, a mounting plate 15 is fixed to the inner side of the lock housing 1, which can be assembled to a specific position of the car by bolting.

[0064] The lock housing 1, lock tongue 21, hook tongue 51 and other components are all made of high-hardness metal alloy. By inserting the matching fastener 8 on the vehicle into the lock groove 14, a buckle hole 81 is provided on the fastener 8, and controlling the lock tongue 21 to extend from the assembly part 12 and pass through the buckle hole 81 into the lock hole 131, the vehicle door or spare tire is locked and fixed.

[0065] When the lock tongue 21 extends into the lock hole 131 and is in a locked position, the safety detection component can monitor the acting pressure of the lock tongue 21 in real time to ensure that the lock tongue 21 is continuously in a locked position. When the outside of the security lock is damaged, the compartment 11 will inevitably be damaged and its airtight effect will be affected. During the assembly stage, the compartment 11 will be evacuated or filled with inert gas of a specific pressure. The pressure of the compartment 11 is monitored in real time by the safety detection component to determine whether the lock shell 1 has been maliciously damaged.

[0066] The setting of the assembly part 12 can ensure the effective installation and operation of the lock tongue 21, transmission assembly, mechanical drive assembly, drive motor 4, electromagnet 53, biometric identification component, and security detection component, while the locking part 13 is mainly used to accommodate the lock tongue 21, hook tongue 51 and achieve effective fixation of the fastener 8.

[0067] When in the locked state, the hook tongue 51 assembled on the lock tongue 21 is driven by the linkage assembly and can extend and embed into the hook groove 132, providing anti-pry protection for the lock tongue 21 and improving the safety performance of the security lock.

[0068] The driving motor 4, electromagnet 53, biometric identification component, and security detection component all need to operate in a powered state. Therefore, a battery is installed in the lock housing 1 to provide them with stable power supply. The biometric identification component can verify the biological information of the unlocking person. When the verification is passed, the electromagnet 53 can be turned on and the linkage component can be driven to operate so that the hook tongue 51 is in an unlocked state. After that, the driving motor 4 works and drives the lock tongue 21 to be retracted to the assembly part 12 through the transmission component to achieve unlocking.

[0069] When the battery is out of power or the drive motor 4, electromagnet 53, or biometric component fails, the door can be unlocked through the mechanical drive assembly, and the lock cylinder 32 is controlled to operate by the appropriate key. First, the linkage assembly is controlled to drive the hook tongue 51 to retract, and then the transmission assembly is controlled to drive the lock tongue 21 to retract to achieve unlocking.

[0070] Example 2

[0071] See also Figure 1 、 Figure 3-Figure 7 In order to ensure that the biometric identification component can be effectively installed on the outer side of the assembly portion 12, and to verify the biometric information of the unlocking person, while providing a password unlocking function, the following technical solutions are provided.

[0072] The outer side of the assembly part 12 is provided with an assembly hole A122, an assembly hole B123, and an assembly hole C124 which are connected to the assembly cavity 121. The biometric components include a camera 61 and a fingerprint sensor 62 which are respectively assembled into the assembly hole A122 and the assembly hole B123. The control panel 63 is assembled in the assembly hole C124.

[0073] The setting of the above assembly holes can ensure the effective installation of the camera 61, fingerprint sensor 62 and control panel 63. The camera 61 and fingerprint sensor 62 respectively collect the facial information and fingerprint information of the unlocking person, and transmit the collected biometric information to the processor assembled in the assembly cavity 121. The processor verifies the biometric information and controls the operation of components such as the drive motor 4 and the electromagnet 53 to realize the unlocking operation after the verification is passed.

[0074] The control panel 63 is also connected to the processor, and can be used to unlock the password, enter facial information, fingerprint information, and modify the password.

[0075] In order to ensure that the safety detection component can effectively detect the pressure acting on the lock tongue 21 and the air tightness of the compartment 11, and provide an on-site alarm function, the following technical solutions are provided.

[0076] An assembly hole D125 that is connected to the assembly cavity 121 is provided on the outer side surface of the assembly part 12, and an assembly groove 133 is provided on the inner end of the lock hole 131. The safety detection components include a pressure sensor 71, an air pressure sensor, and a buzzer 72. The pressure sensor 71 is assembled into the assembly groove 133 and is kept in contact with the end of the lock tongue 21 extending into the lock hole 131. The air pressure sensor is assembled into the assembly cavity 121 and is connected to the partition cavity 11. The buzzer 72 is assembled into the assembly hole D125.

[0077] The assembly hole D125 can ensure that the buzzer 72 is effectively installed on the front side of the lock shell 1. When the lock tongue 21 is in a locked position, a specific pressure value can be applied to the pressure sensor 71, which is detected by the pressure sensor 71 and transmitted to the processor for verification. The air pressure sensor detects the air pressure in the compartment 11 and also transmits it to the processor for verification. When the detection value verified by the processor exceeds the preset alarm threshold, the buzzer 72 is controlled to work and emit an alarm sound.

[0078] The processor can also transmit the alarm signal to the owner's mobile terminal (smartphone) via wireless signals.

[0079] Example 3

[0080] See also Figure 5-10In order to ensure that the lock tongue 21 can telescopically slide in the assembly portion 12 and avoid spatial motion interference with the transmission component, the hook tongue 51 can also be retracted to the assembly portion 12 when the lock tongue 21 is in the retracted state. The following technical solution is provided.

[0081] The locking tongue 21 includes two groups arranged side by side. The assembly portion 12 is provided with a guide hole 126 for slidingly inserting with the locking tongue 21 . The outer end of the guide hole 126 is provided with a receiving groove 127 for nesting and matching with the hook tongue 51 .

[0082] The transmission gear 221 includes two groups distributed coaxially, and the transmission gear 221 is arranged between the two groups of lock tongues 21. Each group of lock tongues 21 is provided with two groups of parallel distribution and use to accommodate the transmission gear 221. The transmission rack 211 is fixed in one group of the use grooves 212. The lock tongue 21 is also provided with a strip-shaped through groove 213. The axis center of the worm 223 is fixed with a transmission shaft 224 arranged in the strip-shaped through groove 213.

[0083] The lock tongues 21 are provided in two groups arranged side by side. The two groups of lock tongues 21 are driven by the transmission assembly to move synchronously and telescopically, and are locked together with the lock holes 131 in the locking part 13 to further improve the safety performance of the security lock.

[0084] The guide through hole 126 enables the lock tongue 21 to slide and retract stably along the axial direction, and the setting of the accommodating groove 127 can ensure that the hook tongue 51 provided on the lock tongue 21 is accommodated when the lock tongue 21 is retracted, thereby ensuring the normal opening and closing of the security lock.

[0085] The setting of the giveway groove 212 can avoid spatial motion interference between the transmission gear 221 and another unrelated group of lock tongues 21, and the setting of the transmission shaft 224 can ensure that the worm 223 is stably installed in the assembly cavity 121 in a relatively rotating posture. During the telescopic sliding process of the lock tongue 21, the transmission shaft 224 realizes relative displacement in the strip groove 213, avoiding spatial motion interference while ensuring the compact layout of the transmission component and the lock tongue 21.

[0086] In order to ensure that the transmission assembly can be stably installed in the assembly cavity 121 and to achieve effective control of the telescopic posture of the lock tongue 21, the following technical solution is provided.

[0087] The worm gear 222 is arranged between the two sets of lock tongues 21. A driving bevel gear A225 is fixedly connected to the axis of the worm gear 222. The axes of the two sets of transmission gears 221 are fixedly connected to transmission bevel gears A226 that are meshed with the driving bevel gear A225. The two sets of transmission bevel gears A226 are symmetrically arranged.

[0088] An arc groove 214 distributed along the axial direction is opened on the inner side of the lock tongue 21, and the worm gear 222 is arranged between the arc grooves 214 of the two groups of lock tongues 21. During the extension and retraction movement of the lock tongue 21, spatial motion interference with the worm gear 222 can be avoided. When the worm 223 drives the worm gear 222 and the driving bevel gear A225 to operate, the two groups of transmission bevel gears A226 and the corresponding transmission gears 221 can be driven to operate stably. Since the two groups of transmission bevel gears A226 maintain a symmetrical layout and operate in opposite directions, the lock tongues 21 arranged on both sides of the transmission gear 221 are driven to extend and retract synchronously.

[0089] Example 4

[0090] See also Figure 5-Figure 8 On the basis of the above technical solutions, in order to ensure that the driving motor 4 can realize the linkage combination with the worm 223, the following technical solutions are provided.

[0091] A driving bevel gear B41 is fixedly connected to the output shaft of the driving motor 4 , and a driving bevel gear B227 is fixedly connected to the transmission shaft 224 . The driving bevel gear B227 is meshed with the driving bevel gear B41 .

[0092] When the driving motor 4 is working, it can drive the driving bevel gear B41 to operate stably, and further drive the driving bevel gear B227 and the driving shaft 224 and the worm 223 to operate stably.

[0093] Because the combination of the worm 223 and the worm wheel 222 has the characteristics of deceleration and torque increase, as well as one-way self-locking, the torque is amplified at the worm wheel 222 end to drive the transmission gear 221 and the lock tongue 21 to operate stably. When the lock tongue 21 is in the locked or unlocked position, the worm 223 is in a stationary state, which can exert a self-locking effect on the worm wheel 222 to prevent the worm wheel 222 from rotating ineffectively, thereby keeping the lock tongue 21 in the same locked state.

[0094] On the basis of the above technical solutions, in order to ensure that the mechanical drive assembly can be effectively assembled in the assembly portion 12 and realize effective driving of the worm 223, the following technical solutions are provided.

[0095] A telescopic through hole 128 is provided on the outer side surface of the assembly portion 12 and is connected to the assembly cavity 121. The lock body 31 is assembled into the telescopic through hole 128 in a relatively sliding manner. A spline shaft 321 is provided at the axis center of the lock core 32. A spur gear A322 that is rotatably installed in the assembly cavity 121 is slidably inserted on the spline shaft 321. A spur gear B228 that is meshed with the spur gear A322 is fixedly connected to the transmission shaft 224.

[0096] The setting of the telescopic through hole 128 can ensure that the lock body 31 is stably assembled in the assembly part 12 and telescopically moves along its own axis. In the process of the lock body 31 driving the lock core 32 to telescopically move, the spline shaft 321 is always powered by the spur gear A322. When the lock core 32 is rotated by the key, the spline shaft 321 can drive the spur gear A322 to rotate synchronously, and then transmit the power to the worm 223 through the spur gear B228 and the transmission shaft 224, so as to drive the worm 223 to operate stably to realize the unlocking and locking operations.

[0097] Example 5

[0098] See also Figure 11-13 In order to ensure that the hook tongue 51 can be assembled in the lock tongue 21 in a telescopic sliding posture, ensure that the linkage component is assembled in the lock tongue 21 and realize the adjustment of the telescopic posture of the hook tongue 51, the following technical solution is provided.

[0099] A radial guide groove 215 and an axial guide groove 216 are provided in the lock tongue 21. Two groups of symmetrically arranged hook tongues 51 are slidably installed in the radial guide groove 215. The two groups of hook tongues 51 are connected by a tension spring 511. The outer side surface of the hook tongue 51 is provided with an outer wedge surface 512 that cooperates with the hook groove 132, and the inner side surface of the hook tongue 51 is provided with an inner wedge surface 513.

[0100] The linkage assembly includes a drive rod 521, a drive key 522, a connecting plate 523, and an action plate 524. The drive rod 521 is slidably installed in the axial guide groove 216. The inner end of the drive rod 521 is equipped with a support spring 525 that abuts the axial guide groove 216. The drive key 522 is fixed to the outer end of the drive rod 521, and a drive wedge surface 526 that abuts against the inner wedge surface 513 is provided on the side wall of the drive key 522. The drive rods 521 arranged in the two groups of lock tongues 21 are fixedly connected through the connecting plate 523. A permanent magnet 527 is fixed on the connecting plate 523. The electromagnet 53 is fixedly installed in the assembly cavity 121 and maintains a coaxial arrangement with the permanent magnet 527. One group of the drive rods 521 is also fixed with an action plate 524, and the action plate 524 is associated with the lock body 31.

[0101] The radial guide groove 215 can ensure that the hook tongue 51 can slide radially in the lock tongue 21, while the axial guide groove 216 can ensure that the driving rod 521 can slide axially in the lock tongue 21. The setting of the tension spring 511 can ensure that the two groups of hook tongues 51 have a tendency to retract inward. The outer wedge surface 512 on the outer side of the hook tongue 51 acts on the hook groove 132 to realize the positioning of the lock tongue 21 in the lock hole 131, avoiding the lock tongue 21 from being pried out by external force, and the driving key 522 moves synchronously with the driving rod 521. Through the action of its driving wedge surface 526 and the inner wedge surface 513, the telescopic movement of the hook tongue 51 can be controlled. The support spring 525 can exert a tendency for the driving rod 521 and the driving key 522 to move toward the end where the hook tongue 51 is located, thereby pushing the hook tongue 51 out and locking it with the hook groove 132.

[0102] The connecting plate 523 can realize the synchronous movement of the two sets of driving rods 521. A connecting groove 217 is opened on the lock tongue 21 to realize the fixed connection between the driving rod 521 and the outer connecting plate 523 and the action plate 524.

[0103] When the electromagnet 53 is not energized, the permanent magnet 527 and the iron core of the electromagnet 53 attract each other, thereby driving the connecting plate 523 and the drive rod 521 to move toward the end where the hook tongue 51 is located. When the electromagnet 53 is energized, it generates a magnetic field that exerts a repulsive force on the permanent magnet 527, thereby pushing the permanent magnet 527, the connecting plate 523, and the drive rod 521 toward the end where the support spring 525 is located. This causes the two sets of hook tongues 51 to retract into the axial guide groove 216 under the action of the tension spring 511, eliminating the interaction with the hook groove 132, and allowing the lock tongue 21 to retract normally.

[0104] In order to trigger the operation of the linkage assembly through the lifting movement of the lock body 31 and thereby realize the telescopic adjustment of the hook tongue 51, the following technical solution is provided.

[0105] The mechanical drive assembly also includes a guide rod 33, a return spring 34, and a connecting seat 35. The guide rod 33 is fixedly installed in the assembly cavity 121, the connecting seat 35 is slidably installed on the guide rod 33 and fixedly connected to the lock body 31, the return spring 34 is assembled on the guide rod 33 and connected to the connecting seat 35, and the connecting seat 35 is fixedly connected to the action buckle 36 arranged above the action plate 524, and the connecting plate 523 is provided with an action inclined groove 528 that cooperates with the action buckle 36.

[0106] The cooperation of the guide rod 33, the telescopic spring and the connecting seat 35 enables the lock body 31 to shrink when pressed by the key and rebound and reset when the action is canceled.

[0107] When the locking and unlocking operations are controlled by electric drive, since the action buckle 36 is arranged above the action plate 524 and no spatial motion interference occurs, the action plate 524 is not interfered with by the mechanical drive component in the extended posture and can be driven by the electromagnet 53 to realize the contraction adjustment of the hook tongue 51.

[0108] When unlocked by the mechanical drive assembly, when the lock body 31 is retracted as a whole by pressing the key, the synchronous movement of the action buckle 36 can achieve the cooperation with the action inclined groove 528, thereby driving the action plate 524 and the drive rod 521 to move toward the end where the support spring 525 is located, thereby realizing the recovery adjustment of the hook tongue 51.

[0109] It should also be noted that during the electrically driven locking stage, as the lock tongue 21 extends from the outside into the lock hole 131, the hook tongue 51 is acted upon by the inner wall of the lock hole 131, thereby overcoming the attractive force between the permanent magnet 527 and the iron core, as well as the resistance of the support spring 525, and automatically retracting. When the lock tongue 21 is fully seated, the hook tongue 51 is free to spring out without being affected by the inner wall of the lock hole 131, and finally engages with the hook groove 132. During the electrically driven unlocking process, the electromagnet 53 is energized to retract the hook tongue 51. Since the electromagnet 53 and the permanent magnet 527 have a certain range of action, the lock tongue 21 can be kept in a retracted state within a certain range of movement. When the hook tongue 51 and the inner wall of the lock hole 131 come into contact, the inner wall of the lock hole 131 exerts a force on the hook tongue 51. At this time, the interaction force between the electromagnet 53 and the permanent magnet 527 is eliminated, and the hook tongue 51 can still be retracted.

[0110] When the mechanical drive assembly controls the locking, due to the action of the hook tongue 51 and the inner wall of the lock hole 131, the locking operation can be achieved without pressing the lock body 31 to contract. When unlocking, the lock body 31 is pressed to contract, and the hook tongue 51 is recovered under the association of the action buckle 36 and the action inclined groove 528. The recovery of the hook tongue 51 has a certain redundancy, which can ensure that the hook tongue 51 does not extend out of the radial guide groove 215 before it interacts with the inner wall of the lock hole 131.

[0111] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0112] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A smart security lock for a vehicle with biometric identification and safety detection functions, characterized in that: include: A lock case (1), wherein a compartment (11) in a sealed state is provided in the lock case (1), an outer side surface of the lock case (1) is provided with an outwardly convex assembly portion (12) and a locking portion (13), a locking groove (14) is provided between the assembly portion (12) and the locking portion (13), an assembly cavity (121) is provided on the inner side of the assembly portion (12), a locking hole (131) arranged toward the locking groove (14) is provided in the locking portion (13), and a hook groove (132) is provided on the side wall of the locking hole (131); A lock tongue (21) and a transmission assembly, wherein the lock tongue (21) is slidably mounted in the assembly portion (12) and inserted into the lock hole (131) through the lock slot (14); a transmission rack (211) is mounted on the inner side of the lock tongue (21); the transmission assembly comprises a transmission gear (221) and a matching worm wheel (222) and a worm (223); the worm wheel (222) and the transmission gear (221) are in dynamic fixed connection, and the transmission gear (221) and the rack are in matching meshing engagement; A mechanical drive assembly and a drive motor (4), wherein the mechanical drive assembly comprises a lock body (31) and a lock core (32) assembled into the lock body (31), wherein the lock body (31) is assembled into the outer side surface of the assembly portion (12) and extends into the assembly cavity (121), and the lock core (32) and the drive motor (4) are both in a linkage combination with the worm (223); A hook tongue (51), a linkage assembly, and an electromagnet (53); the hook tongue (51) is assembled to the outer end of the lock tongue (21) and can be nested and locked with the hook groove (132); the linkage assembly is assembled into the lock tongue (21); the hook tongue (51) and the mechanical drive assembly are all linked to the linkage assembly; the electromagnet (53) is assembled into the assembly cavity (121) and controls the movement of the linkage assembly by the on / off state of the power; A biometric identification component and a safety detection component are provided. The biometric identification component is assembled to the outer side surface of the assembly portion (12). The safety detection component is used to detect the action pressure of the lock tongue (21) and the airtightness of the compartment (11).

2. The intelligent vehicle security lock with biometric identification and safety detection functions according to claim 1, characterized in that: The outer side surface of the assembly portion (12) is provided with an assembly hole A (122), an assembly hole B (123), and an assembly hole C (124) which are in communication with the assembly cavity (121); the biometric identification component comprises a camera (61) and a fingerprint sensor (62) which are respectively assembled in the assembly hole A (122) and the assembly hole B (123); and a control panel (63) is assembled in the assembly hole C (124).

3. The intelligent vehicle security lock with biometric identification and safety detection functions according to claim 1, characterized in that: An assembly hole D (125) communicating with the assembly cavity (121) is provided on the outer side surface of the assembly portion (12); an assembly groove (133) is provided on the inner side end of the lock hole (131); the safety detection component comprises a pressure sensor (71), an air pressure sensor, and a buzzer (72); the pressure sensor (71) is assembled into the assembly groove (133) and abuts against the end of the lock tongue (21) extending into the lock hole (131); the air pressure sensor is assembled into the assembly cavity (121) and connected to the partition cavity (11); and the buzzer (72) is assembled into the assembly hole D (125).

4. The intelligent vehicle security lock with biometric identification and safety detection functions according to claim 1, characterized in that: The locking tongue (21) comprises two groups arranged side by side, the assembly portion (12) is provided with a guide through hole (126) for maintaining sliding insertion with the locking tongue (21), and the outer end of the guide through hole (126) is provided with a receiving groove (127) for nesting and matching with the hook tongue (51); The transmission gear (221) includes two groups of coaxially distributed transmission gears (221), and the transmission gear (221) is arranged between the two groups of lock tongues (21). Each group of lock tongues (21) is provided with two groups of parallelly distributed clearance grooves (212) for accommodating the transmission gear (221). The transmission rack (211) is fixedly connected to one group of clearance grooves (212). The lock tongue (21) is also provided with a strip-shaped through groove (213). The axis of the worm (223) is fixedly connected to a transmission shaft (224) arranged in the strip-shaped through groove (213).

5. The intelligent vehicle security lock with biometric identification and safety detection functions according to claim 4, characterized in that: The worm gear (222) is arranged between the two groups of lock tongues (21), the axis of the worm gear (222) is fixedly connected to a driving bevel gear A (225), and the axis of the two groups of transmission gears (221) are fixedly connected to a transmission bevel gear A (226) that is meshed with the driving bevel gear A (225), and the two groups of transmission bevel gears A (226) are symmetrically arranged.

6. The intelligent vehicle security lock with biometric identification and safety detection functions according to claim 4, characterized in that: A driving bevel gear B (41) is fixedly connected to the output shaft of the driving motor (4), a driving bevel gear B (227) is fixedly connected to the transmission shaft (224), and the driving bevel gear B (227) is kept in meshing connection with the driving bevel gear B (41).

7. The intelligent vehicle security lock with biometric identification and safety detection functions according to claim 4, characterized in that: The outer side surface of the assembly portion (12) is provided with a telescopic through hole (128) which is in communication with the assembly cavity (121); the lock body (31) is assembled into the telescopic through hole (128) in a relatively sliding manner; a spline shaft (321) is provided at the axis of the lock core (32); a spur gear A (322) which is rotatably mounted in the assembly cavity (121) is slidably inserted into the spline shaft (321); and a spur gear B (228) which is in meshing engagement with the spur gear A (322) is fixedly connected to the transmission shaft (224).

8. The intelligent vehicle security lock with biometric identification and safety detection functions according to claim 7, characterized in that: The lock tongue (21) is provided with a radial guide groove (215) and an axial guide groove (216); two groups of symmetrically arranged hook tongues (51) are slidably mounted in the radial guide groove (215); the two groups of hook tongues (51) are connected by a tension spring (511); the outer side surface of the hook tongue (51) is provided with an outer wedge surface (512) that cooperates with the hook groove (132); and the inner side surface of the hook tongue (51) is provided with an inner wedge surface (513); The linkage assembly includes a driving rod (521), a driving key (522), a connecting plate (523), and an action plate (524). The driving rod (521) is slidably installed in the axial guide groove (216). The inner end of the driving rod (521) is equipped with a supporting spring (525) that abuts against the axial guide groove (216). The driving key (522) is fixed to the outer end of the driving rod (521), and a side wall of the driving key (522) is provided with a support spring (525) that abuts against the inner wedge surface (513). The driving wedge surface (526) is abutted and matched, and the driving rods (521) arranged in the two groups of lock tongues (21) are fixedly connected through a connecting plate (523). A permanent magnet (527) is fixedly connected to the connecting plate (523). The electromagnet (53) is fixedly installed in the assembly cavity (121) and is coaxially arranged with the permanent magnet (527). One group of the driving rods (521) is also fixedly connected to the action plate (524), and the action plate (524) is associated with the lock body (31).

9. The intelligent vehicle security lock with biometric identification and safety detection functions according to claim 8, characterized in that: The mechanical drive assembly also includes a guide rod (33), a return spring (34), and a connecting seat (35). The guide rod (33) is fixedly installed in the assembly cavity (121). The connecting seat (35) is slidably installed on the guide rod (33) and fixedly connected to the lock body (31). The return spring (34) is assembled on the guide rod (33) and connected to the connecting seat (35). An action buckle (36) arranged above the action plate (524) is fixedly connected to the connecting seat (35). An action inclined groove (528) that cooperates with the action buckle (36) is opened on the connecting plate (523).

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