Multi-functional vehicle door lock

Abstract

This invention relates to the field of automotive electric door lock technology, and provides a multi-functional automotive door lock. This multi-functional automotive door lock includes a drive unit capable of performing electric unlocking, central locking state switching, and superlock state switching. The door lock mechanism consists of an electric unlocking release lever, an electric unlocking release auxiliary lever, and a release lever, ensuring smooth unlocking under electric unlocking function. The central locking mechanism and superlock mechanism achieve locking and unlocking functions through an external locking stop link and a superlock link. The multi-functional automotive door lock of this invention integrates the electric unlocking mechanism, central locking mechanism, and superlock mechanism of the automotive door lock into a single drive unit, reducing the number of independent components, lowering production costs and installation complexity. Users only need to control one system during operation, avoiding potential failure points caused by the collaborative work of multiple components, thereby improving the reliability and stability of the system.

Description

Technical Field

[0001] This invention relates to the field of automotive electric door lock technology, and in particular to a multifunctional automotive door lock. Background Technology

[0002] As a crucial component of automotive safety systems, car door locks have evolved from traditional mechanical locks to electric locks, and now to complex systems integrating multiple intelligent functions. Currently, car door locks are mainly classified into three categories: mechanical locks, ordinary electric locks, and super locks.

[0003] Mechanical locks were the earliest form of door locks, requiring manual operation to lock and unlock, such as reed locks, hook locks, and latch locks. These locks have a simple structure, but they have poor longitudinal load-bearing capacity, low security, and are noisy and prone to wear during use.

[0004] Ordinary electric locks use electric controls to achieve locking, unlocking, and child lock functions, offering significant improvements in convenience and security compared to mechanical locks. A typical electric lock consists of a lock body, internal and external opening mechanisms, internal and external locking / unlocking mechanisms, and components such as lock pins / latches / stops. Its working principle involves an electric motor driving gears to rotate, thus opening and closing the lock.

[0005] Super locks add extra security features to ordinary electric locks, maintaining a locked state even without a key or remote control to prevent internal opening. Through a complex mechanical structure and electronic control system, super locks achieve enhanced security.

[0006] Despite significant progress in automotive door lock technology, some problems and shortcomings still exist, mainly in the following aspects:

[0007] 1. Low functional integration:

[0008] Existing automotive door lock systems often use multiple independent components to achieve different functions, such as electric unlocking, central locking and release, and superlock locking and unlocking. This design not only increases production costs and installation complexity, but also makes the system prone to failure points due to the coordinated operation of multiple components, affecting the system's reliability and stability.

[0009] 2. Complex operation:

[0010] Because the functions are distributed across multiple components, users need to control different switches or buttons separately when operating the door lock, making the operation cumbersome and unintuitive. This not only degrades the user experience but may also lead to safety hazards due to misoperation.

[0011] 3. Insufficient security and reliability:

[0012] While superlocks offer improved security, their complex designs increase the risk of malfunction. Furthermore, some superlocks may fail to unlock quickly in emergencies, hindering passenger escape and rescue efforts.

[0013] 4. Poor adaptability and flexibility:

[0014] Different car models and door structures have different requirements for door lock systems. Existing door lock systems are often unable to meet diverse needs, forcing automakers to customize different door lock systems during the design and production process, increasing costs and time investment.

[0015] Chinese patent CN215056297U discloses a central locking mechanism for a multi-functional car door lock. This mechanism achieves locking and unlocking functions through the coordinated use of components such as a lock cylinder, bolt, lever, and spring. However, this mechanism still has certain limitations in terms of simplifying the structure, improving response speed, and adaptability. Specifically, the mechanism still relies on the precise coordination of multiple mechanical parts, resulting in a relatively complex structure. Furthermore, the need for transmission and coordination among multiple components leads to a relatively slow unlocking and locking process. While the mechanism can meet the needs of different car models to some extent, its flexibility and versatility still require further improvement.

[0016] While existing technologies have made significant progress in the field of automotive door locks, they still have many shortcomings in terms of functional integration, operational complexity, security, and adaptability. These problems urgently need to be addressed through innovative technological solutions to meet modern consumers' demands for automotive security, convenience, and intelligence. Summary of the Invention

[0017] In view of this, the present invention proposes a multi-functional car door lock, aiming to solve the technical problems of low functional integration, complex operation, insufficient security, and poor adaptability in existing car door lock systems. Through innovative design, the present invention creates a multi-functional car door lock that integrates electric unlocking, central locking, and super lock functions into a single system, simplifying the operation process, improving user experience, and simultaneously enhancing security and system versatility.

[0018] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0019] A multi-functional car door lock, comprising:

[0020] The driving device includes an electric opening gear, which, when rotating, can perform an electric opening function, a switching function between the central locking and unlocking states of the central locking mechanism, and a switching function between the locking and unlocking states of the super lock mechanism.

[0021] The door lock mechanism includes an electric release lever, an electric release auxiliary lever, and a release lever. When the electric release gear performs the electric release function, it drives the electric release lever and the electric release auxiliary lever to rotate together, thereby pushing the release lever to rotate and open the door lock.

[0022] The central locking mechanism includes an outer locking link, which can drive the outer locking link to slide or rotate when the electric opening gear rotates, thereby disengaging or reconnecting the electric opening release rod with the electric opening release auxiliary rod.

[0023] The super lock mechanism includes a super lock linkage, which can be directly or indirectly driven to rotate by the electric release gear, thereby locking or unlocking the inner locking auxiliary rod. The inner locking auxiliary rod is integrated with the electric release auxiliary rod. When the inner locking auxiliary rod is in the locked position, the inner release lever and the inner locking auxiliary rod pull-unlock function are disabled.

[0024] Furthermore, the electrically operated release rod is provided with a rotating shaft, and a release locking clutch spring is provided on the rotating shaft. The release locking clutch spring can connect the electrically operated release rod and the electrically operated release auxiliary rod as one unit. The outer locking link drives the extension end of the release locking clutch spring to move away from the electrically operated release auxiliary rod through horizontal movement or rotation, and separates the electrically operated release rod from the electrically operated release auxiliary rod.

[0025] Furthermore, a first limiting baffle is provided on the rotating shaft, and a second limiting baffle is provided on the electrically operated release auxiliary rod. A clutch groove is formed between the first limiting baffle and the second limiting baffle, and a misalignment groove is formed between the second limiting baffle and the first limiting baffle in the inward and outward directions. This is used to separate the electrically operated release rod from the electrically operated release auxiliary rod when the release locking clutch spring is pushed outward by the first limiting rod on the outer locking link.

[0026] Furthermore, the length of the second limiting baffle in the inward and outward directions is less than the length of the first limiting baffle in the inward and outward directions, and a first limiting flange is provided at the end of the clutch groove away from the electric release auxiliary rod, and the first limiting flange is provided on the first limiting baffle.

[0027] Furthermore, the release locking clutch spring has an inwardly recessed bent portion at its extended end near the first limiting rod. When the first limiting rod pushes against the bent portion, it can drive the release locking clutch spring to slide outward. The release locking clutch spring resets when the first limiting rod disengages from the bent portion.

[0028] Furthermore, a first connecting part is provided on the outer locking link, and the first connecting part and the first limiting rod are located on opposite sides of the rotating shaft. A first connecting groove is provided on the first connecting part. When the electric opening gear rotates, it drives the locking lever auxiliary rod to rotate. The locking lever auxiliary rod extends into the first connecting groove and drives the outer locking link to slide horizontally to the left and right sides when the electric opening gear rotates forward and backward.

[0029] Furthermore, an external release auxiliary rod is hinged and fixed to the external locking link. The external release auxiliary rod can be driven to rotate by the external release pull rod. When the external locking link is driven to the central locking state by the electric opening gear, the external release auxiliary rod is pulled to one side by the external locking link. When the external release pull rod is driven to rotate, it disengages from the external release auxiliary rod. When the external locking link is driven to the central unlocking state by the electric opening gear, the external release pull rod can drive the external release auxiliary rod to rotate, thereby causing the release rod to rotate and open the door lock.

[0030] Furthermore, a locking lever auxiliary rod is provided on the electric opening gear. The locking lever auxiliary rod includes a first transmission link and a second transmission link. When the second transmission link rotates with the electric opening gear, it can drive the outer locking link to slide. When the first transmission link rotates with the electric opening gear, it can drive the super lock link to rotate through the super lock release auxiliary rod.

[0031] Furthermore, a guide transmission flange is provided on the electric opening gear. When the guide transmission flange rotates counterclockwise with the electric opening gear, it can drive the locking lever auxiliary rod to rotate counterclockwise. When the guide transmission flange rotates clockwise with the electric opening gear, it can drive the second limiting flange provided on the cantilever end of the electric opening release rod to rotate clockwise, or it can drive the electric opening release rod and the locking lever auxiliary rod to rotate clockwise.

[0032] Furthermore, the super lock release auxiliary rod is hinged to the first transmission link, the super lock link is located diagonally above the locking lever auxiliary rod, and a third return spring for self-resetting is provided at the connection between the inner locking auxiliary rod and the electric release auxiliary rod.

[0033] Compared with existing technologies, the multifunctional car door lock described in this invention has the following advantages:

[0034] (1) The multi-functional car door lock of the present invention integrates the electric opening mechanism, central locking mechanism and super lock mechanism of the car door lock through a single drive device, which reduces the number of independent components, lowers production costs and installation complexity. Users only need to control one system during operation, avoiding fault points caused by the collaborative work of multiple components, thereby improving the reliability and stability of the system.

[0035] (2) The multi-functional car door lock of the present invention ensures the coordinated operation of various components by introducing a locking lever auxiliary rod and a variety of spring mechanisms. The clutch mechanism design between the electric release lever and the electric release auxiliary rod enables the door lock to switch quickly and smoothly in different states, avoiding noise and wear caused by mechanical friction and improving the user's operating experience.

[0036] (3) The multi-functional car door lock described in this invention has better adaptability and flexibility, and can meet the needs of different car models and door structures, reducing the customization costs and time investment of car manufacturers in the design and production process. Attached Figure Description

[0037] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0038] Figure 1 This is a schematic diagram of the structure of the multi-functional car door lock in the super lock mechanism locked state according to an embodiment of the present invention;

[0039] Figure 2 for Figure 1 Rear view of the structure shown;

[0040] Figure 3 This is a schematic diagram of the structure of the multi-functional car door lock in the unlocked state of the super lock mechanism according to an embodiment of the present invention;

[0041] Figure 4 for Figure 3 Rear view of the structure shown;

[0042] Figure 5 This is a schematic diagram of the central locking mechanism of the multi-functional car door lock according to an embodiment of the present invention in its initial state;

[0043] Figure 6 This is a schematic diagram of the structure of the multi-functional car door lock described in this embodiment of the invention, in which the electric opening gear drives the electric opening release rod and the electric opening release auxiliary rod drives the release rod to rotate.

[0044] Figure 7 This is a schematic diagram of the structure of the multi-functional car door lock described in an embodiment of the present invention, in which the release locking clutch spring is in the central locking unlocking state;

[0045] Figure 8 This is a schematic diagram of the structure of the multi-functional car door lock described in this embodiment of the invention, showing how the reverse rotation of the electric opening gear drives the sliding of the outer locking linkage to switch the locking clutch spring.

[0046] Figure 9 This is a schematic diagram of the structure of the multi-functional car door lock described in an embodiment of the present invention, in which the release locking clutch spring is in the central locking state;

[0047] Figure 10 This is a second-view structural diagram of the multi-functional car door lock according to an embodiment of the present invention, showing the release locking clutch spring in the central locking state.

[0048] Figure 11 This is a schematic diagram of the structure for resetting the outer locking linkage in the multifunctional car door lock according to an embodiment of the present invention;

[0049] Figure 12 This is a schematic diagram of the structure of the multi-functional car door lock described in this embodiment of the invention, showing the outer locking linkage returning to the central locking unlocking state.

[0050] Figure 13 This is a schematic diagram of the structure of the multi-functional car door lock resetting to its initial state according to an embodiment of the present invention;

[0051] Explanation of reference numerals in the attached figures:

[0052] 1. External locking linkage; 2. Electrically operated release lever; 3. Electrically operated release auxiliary lever; 4. Release lock clutch spring; 401. Bending part; 5. First connecting part; 6. First connecting groove; 7. First limiting lever; 8. First limiting baffle; 801. First limiting flange; 9. Clutch groove; 10. Second limiting baffle; 11. Rotating shaft part; 12. Electrically operated gear; 13. Locking lever auxiliary lever; 14. Release lever; 15. Second limiting flange; 16. Guide transmission flange; 17. First transmission linkage; 18. Second transmission linkage; 19. Reset torsion spring; 20. Super lock release auxiliary lever; 21. Super lock linkage; 22. Internal locking auxiliary lever; 23. Internal release lever; 24. External release lever; 25. External release auxiliary lever. Detailed Implementation

[0053] To make the technical means and objectives and effects of the present invention easier to understand, the embodiments of the present invention will be described in detail below with reference to specific illustrations.

[0054] It should be noted that all directional and positional terms used in this invention, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connections between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing the invention and do not require the invention to be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. Furthermore, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0055] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0057] like Figures 1-13 As shown, this application discloses a multi-functional car door lock, comprising:

[0058] The driving device includes an electric opening gear 12, which, when rotating, can perform an electric opening function, a switching function between the central locking and unlocking states of the central locking mechanism, and a switching function between the locking and unlocking states of the super lock mechanism.

[0059] The door lock mechanism includes an electric release lever 2, an electric release auxiliary lever 3, and a release lever 14. When the electric release gear 12 performs the electric release function, it drives the electric release lever 2 and the electric release auxiliary lever 3 to rotate together, thereby pushing the release lever 14 to rotate and open the door lock.

[0060] The central locking mechanism includes an outer locking link 1. When the electric opening gear 12 rotates, the outer locking link 1 can be driven to slide or rotate, thereby engaging or disengaging the electric opening release rod 2 and the electric opening release auxiliary rod 3.

[0061] The super lock mechanism includes a super lock link 21, which can be directly or indirectly driven to rotate by the electric opening gear 12, thereby locking or unlocking the inner locking auxiliary rod 22. The inner locking auxiliary rod 22 is integrated with the electric opening release auxiliary rod 3. When the inner locking auxiliary rod 22 is in the locked position, the inner release lever 23 and the inner locking auxiliary rod 22 are disabled in their pull-unlocking function.

[0062] This application discloses a multi-functional car door lock, the core of which lies in realizing multiple functions of the car door lock through a drive device including an electric opening gear 12. First: When the electric opening gear 12 receives a command to rotate, it can perform the electric opening function. In this condition, the electric opening gear 12 can drive the electric opening release rod 2 and the electric opening release auxiliary rod 3 to rotate synchronously, thereby pushing the release rod 14 to rotate and open the door lock. Second: When the electric opening gear 12 receives a command to rotate, it can perform the central locking or unlocking function of the central locking mechanism. In this condition, the electric opening gear 12 can drive the outer locking link 1 to slide or rotate. When the outer locking link 1 slides or rotates, if the electric... When the release lever 2 and the electric release auxiliary lever 3 are disengaged, the central locking mechanism is in the central locking state. When the electric release gear 12 drives the electric release lever 2 to rotate, the electric release auxiliary lever 3 no longer rotates, meaning the release lever 14 will not operate, and the door will not be opened, thus achieving central locking. If the electric release lever 2 and the electric release auxiliary lever 3 are disengaged when the outer locking linkage 1 slides or rotates, the central locking mechanism is in the central unlocking state. The electric release gear 12 drives the release lever 2 to rotate. When the electrically operated release lever 2 rotates, it can drive the electrically operated release auxiliary lever 3 to rotate as well, thereby pushing the release lever 14 to rotate and open the door lock, thus switching to central locking. Thirdly, when the electrically operated gear 12 receives a command to rotate, it can execute the locking and unlocking functions of the super lock mechanism. In this condition, the electrically operated gear 12 can directly or indirectly drive the super lock connecting rod 21 to rotate, thereby locking or unlocking the inner locking auxiliary lever 22 connected to the electrically operated release auxiliary lever 3. When the inner locking auxiliary lever 22 is in the locked position, the inner lock... The locking auxiliary rod 22 is limited by the super lock linkage 21, and the inner release lever 23 connected to it will lose the function of pulling the inner locking auxiliary rod 22 to unlock, ensuring the high security of the door lock in the super lock state. When the electric opening gear 12 drives the super lock linkage 21 to the unlock position, the inner locking auxiliary rod 22 is relatively disengaged from the super lock linkage 21. At this time, pulling the inner release lever 23 will drive the inner locking auxiliary rod 22 and the electric opening release auxiliary rod 3 to rotate together, thereby pushing the release lever 14 to rotate and open the door lock.

[0063] The multi-functional car door lock disclosed in this application integrates the electric opening mechanism, central locking mechanism, and super lock mechanism of the car door lock into a single drive device. It achieves three key functions—electric opening, central locking and release, and super lock locking and unlocking—through only one electric opening gear 12. This greatly reduces production costs and installation complexity, improves the reliability and stability of the door lock system, reduces potential failure points caused by the collaborative work of multiple components, optimizes the user experience, makes the operation of the door lock simpler and faster, and enhances the intelligence and security level of the entire vehicle.

[0064] As a preferred example of this application, an external release auxiliary rod 25 is hinged and fixed to the external locking link 1. The external release auxiliary rod 25 can be driven to rotate by the external release pull rod 24 and can be pulled to one side by the external locking link 1. When the external locking link 1 is driven to the central locking state by the electric opening gear 12, the external release auxiliary rod 25 is pulled to one side by the external locking link 1. When the external release pull rod 24 is driven to rotate, it disengages from the external release auxiliary rod 25. When the external locking link 1 is driven to the central unlocking state by the electric opening gear 12, the external release pull rod 24 can drive the external release auxiliary rod 25 to rotate when rotating, thereby driving the release rod 14 to rotate and open the door lock. This invention discloses a specific method for the failure of the external locking mechanism when a car door lock is in a centrally locked state. In the example of this application, the external locking linkage 1 can be driven to slide to the right in the centrally locked state. The external release auxiliary rod 25 is located at the left end of the external locking linkage 1. When the external locking linkage 1 slides to the right, it simultaneously drives the external release auxiliary rod 25 to slide to the right as a whole, thereby causing the external release auxiliary rod 25 to disengage from the external release lever 24. At this time, even if the external release lever 24 is pulled to rotate, it cannot drive the external release auxiliary rod 25 to rotate, and thus cannot drive the release lever 14 to rotate and open the door lock. However, when the external locking linkage 1 is located on the left side in the centrally locked state, the external release lever 24 and the external release auxiliary rod 25 are connected to each other. When the external release lever 24 is pulled to rotate, it drives the external release auxiliary rod 25 to rotate, and thus drives the release lever 14 to rotate and open the car door lock as a whole.

[0065] This setup, through precise mechanical linkage design, effectively prevents external interference in the central locking state, simplifies the door lock structure, reduces potential failure points, improves system reliability and stability, thereby reducing production and maintenance costs, enhancing the overall vehicle's intelligence level, and meeting modern consumers' dual needs for automotive safety and convenience.

[0066] As a preferred example of this application, a locking lever auxiliary rod 13 is provided on the electrically operated gear 12. The locking lever auxiliary rod 13 includes a first transmission link 17 and a second transmission link 18. When the second transmission link 18 rotates with the electrically operated gear 12, it can drive the outer locking link 1 to slide. When the first transmission link 17 rotates with the electrically operated gear 12, it can drive the super lock link 21 to rotate through the super lock release auxiliary rod 20. This setup incorporates a locking lever auxiliary rod 13, including a first transmission link 17 and a second transmission link 18, onto the electric opening gear 12. When the electric opening gear 12 rotates, the second transmission link 18 drives the outer locking link 1 to slide during the rotation of the electric opening gear, thereby realizing the locking or releasing function of the central locking system. Simultaneously, the first transmission link 17 drives the super lock link 21 to rotate through the super lock release auxiliary rod 20. This linkage mechanism enables the electric opening gear 12 not only to control the opening and closing of the door lock but also to effectively switch the state of the super lock, ensuring that all parts of the door lock system can work in coordination under different operating modes, thereby improving the overall performance and security of the system.

[0067] By introducing the design of the locking lever auxiliary rod 13, the electric opening gear 12 becomes more versatile and flexible, enabling dual control of the external locking linkage 1 and the super lock linkage 21 within a single device. This simplifies the structure of the door lock system, reduces the number of components, thereby lowering production and maintenance costs. It also improves system reliability, reduces potential failure points, and optimizes the user experience.

[0068] As a preferred example of this application, the electrically operated release rod 2 is provided with a rotating shaft 11, and a release locking clutch spring 4 is provided on the rotating shaft 11. The release locking clutch spring 4 can connect the electrically operated release rod 2 and the electrically operated release auxiliary rod 3 into one unit. The outer locking link 1 drives the extension end of the release locking clutch spring 4 to move away from the electrically operated release auxiliary rod 3 through horizontal movement or rotation, and separates the electrically operated release rod 2 from the electrically operated release auxiliary rod 3. This design, by incorporating a rotating shaft 11 and a release lock clutch spring 4 on the electrically operated release rod 2, effectively connects and separates the electrically operated release rod 2 from the electrically operated release auxiliary rod 3. The working principle is as follows: the release lock clutch spring 4 on the rotating shaft 11 connects the electrically operated release rod 2 and the electrically operated release auxiliary rod 3 as a single unit. When the outer locking link 1 moves horizontally or rotates, the extension end of the release lock clutch spring 4 moves away from the electrically operated release auxiliary rod 3, thus separating the electrically operated release rod 2 from the electrically operated release auxiliary rod 3. When the outer locking link 1 resets under the action of the electrically operated gear 12 and the second transmission link 18, the release lock clutch spring 4 resets and connects the electrically operated release rod 2 and the electrically operated release auxiliary rod 3 as a single unit, thereby enabling the switching between the central locking and unlocking states of the central locking mechanism, ensuring efficient response and convenient operation of the door lock system.

[0069] By cleverly designing the aforementioned spring clutch locking mechanism, the internal structure of the car door lock is simplified, reducing manufacturing and maintenance costs. This also enhances the lock's durability and reliability. The synergistic effect of the external locking linkage and the release locking clutch spring makes the switching between central locking and release smoother, improving the user experience. Users can quickly unlock or lock the door when needed, thus improving the overall security and stability of the car door lock. Furthermore, this design can adapt to the needs of different car models and door structures, providing automakers with a flexible and efficient door lock solution, thereby gaining a more advantageous position in market competition.

[0070] As a preferred example of this application, a first limiting baffle 8 is provided on the rotating shaft portion 11, and a second limiting baffle 10 is provided on the electrically operated release auxiliary rod 3. A clutch groove 9 is formed between the first limiting baffle 8 and the second limiting baffle 10. The second limiting baffle 10 and the first limiting baffle 8 form a misalignment groove in the inward and outward directions, which is used to separate the electrically operated release rod 2 from the electrically operated release auxiliary rod 3 when the release locking clutch spring 4 is pushed outward by the first limiting rod 7. Preferably, the length of the second limiting baffle 10 in the inward and outward directions is less than the length of the first limiting baffle 8 in the inward and outward directions. By setting a first limiting baffle 8 and a second limiting baffle 10 on the rotating shaft 11 and the electrically operated release auxiliary rod 3 respectively, a clutch groove 9 is formed between them to accommodate the extension end of the limiting release locking clutch spring 4. When the extension end of the release locking clutch spring 4 is inside the clutch groove 9, the electrically operated release rod 2 and the electrically operated release auxiliary rod 3 are connected as one unit; when the extension end of the release locking clutch spring 4 is outside the clutch groove 9, the electrically operated release rod 2 is disengaged from the electrically operated release auxiliary rod 3. By designing the length of the second limiting baffle 10 in the inward and outward directions to be less than the length of the first limiting baffle 8, when the release locking clutch spring 4 is pushed outward, the second limiting baffle 10 can more easily disengage from the clutch groove 9 due to the length difference, thereby achieving rapid and smooth disengagement of the electrically operated release rod 2 from the electrically operated release auxiliary rod 3.

[0071] This design further enables precise control of the clutch mechanism, making the disengagement of the electric release lever 2 and the electric release auxiliary lever 3 more stable and reliable, providing users with a smoother and more efficient user experience. At the same time, the length difference design makes the clutch mechanism easier to align and adjust during manufacturing and assembly, reducing production costs and difficulties.

[0072] As a preferred example of this application, a first limiting flange 801 is provided at the end of the clutch groove 9 away from the electrically operated release auxiliary rod 3. The first limiting flange 801 is disposed on the first limiting baffle 8. By providing the first limiting flange 801 at the end of the clutch groove 9 away from the electrically operated release auxiliary rod 3, when the release locking clutch spring 4 is pushed outward to switch working conditions, the first limiting flange 801 acts as a physical restriction, ensuring that the electrically operated release auxiliary rod 3 does not move excessively. This precisely controls the opening degree of the clutch groove 9, achieving stable engagement and disengagement of the electrically operated release rod 2 and the electrically operated release auxiliary rod 3, thus improving the response speed and reliability of the door lock. In addition, the simple structure of the first limiting flange 801 reduces manufacturing costs and facilitates installation and maintenance, providing automakers and users with an efficient and economical door lock solution.

[0073] As a preferred example of this application, a first connecting part 5 and a first limiting rod 7 are provided on the outer locking link 1, and the first connecting part 5 and the first limiting rod 7 are provided on opposite sides of the rotating shaft part 11.

[0074] Preferably, a first connecting groove 6 is provided on the first connecting part 5, and the electric release rod 2 can be driven to rotate by the electric opening gear 12. When the electric opening gear 12 rotates, it drives the locking lever auxiliary rod 13 to rotate. The locking lever auxiliary rod 13 extends into the first connecting groove 6 and drives the outer locking link 1 to slide horizontally to the left and right sides when the electric opening gear 12 rotates forward and backward. This configuration further defines the drive structure for the external locking linkage 1 to drive the release locking clutch spring 4 to switch between clutch engagement and disengagement. When the electrically operated release lever 2 is driven to rotate by the electrically operated gear 12, the electrically operated gear simultaneously drives the locking lever auxiliary lever 13 to rotate. One end of the locking lever auxiliary lever 13 extends into the first connecting groove 6 on the first connecting part 5. As the electrically operated gear 12 rotates forward and backward, the locking lever auxiliary lever 13 slides in the first connecting groove 6, and drives the external locking linkage 1 to slide horizontally to the left and right sides, thereby driving the release locking clutch spring 4 to switch between the central control locking state and the central control unlocking state, realizing the connection and separation of the electrically operated release lever 2 and the electrically operated release auxiliary lever 3.

[0075] This design enables precise control of the external locking linkage 1, improving the reliability and stability of the door lock. It also makes the locking and disengaging actions smoother and more fluid, reducing noise and wear caused by mechanical friction and extending the lock's lifespan. Furthermore, the coordinated use of the electric opening gear 12 and the locking lever auxiliary rod 13 drives the horizontal sliding of the external locking linkage 1, reducing the number of components and lowering the lock's production cost.

[0076] As a preferred example of this application, the release locking clutch spring 4 is provided with an inwardly recessed bent portion 401 at the extended end near the first limiting rod 7. When the first limiting rod 7 pushes the bent portion 401, it can drive the release locking clutch spring 4 to slide outward. The release locking clutch spring 4 resets when the first limiting rod 7 disengages from the bent portion 401. This design further optimizes the extension end of the release lock clutch spring 4. When the outer locking linkage 1 slides to the right under the action of the electric opening gear 12 and the locking lever auxiliary rod 13, the first limiting rod 7 simultaneously slides to the right and pushes the inwardly recessed bent portion 401 on the release lock clutch spring 4, thereby sliding the extension end of the release lock clutch spring 4 outward and entering the central locking state. The electric opening release rod 2 disengages from the electric opening release auxiliary rod 3. When the first limiting rod 7 resets and disengages from the bent portion 401, the release lock clutch spring 4 will reset under its own elasticity and return to its initial state, that is, enter the central locking state.

[0077] This design, by incorporating a bent portion 401 on the release lock clutch spring 4 that engages with the first limiting rod 7, achieves precise control of the release lock clutch spring 4. This not only improves the stability and reliability of the clutch mechanism switching but also effectively reduces mechanical friction and wear, thereby extending the service life of the clutch mechanism. Simultaneously, the rapid switching action significantly improves the door lock's response speed, providing users with a smooth and efficient user experience. Furthermore, the reset design of the release lock clutch spring 4 ensures that the door lock quickly returns to its initial state upon unlocking, fully preparing for the next locking action, further enhancing the door lock's performance and user experience. Preferably, the first limiting rod 7 can directly contact and push against the bent portion 401 on the release lock clutch spring 4, or it can indirectly contact and push against the bent portion 401 on the release lock clutch spring 4 through other structures such as a sleeve or gasket.

[0078] As a preferred example of this application, a guide transmission flange 16 is provided on the electrically operated gear 12. When the guide transmission flange 16 rotates counterclockwise with the electrically operated gear 12, it can drive the locking lever auxiliary rod 13 to rotate counterclockwise. When the guide transmission flange 16 rotates clockwise with the electrically operated gear 12, it can drive the second limiting flange 15 provided at the cantilever end of the electrically operated release rod 2 to rotate clockwise, or it can drive the electrically operated release rod 2 and the locking lever auxiliary rod 13 to rotate clockwise. In the example of this application, in the initial state of the central locking mechanism of the multi-functional car door lock, the outer locking linkage 1 is in the left position, the release locking clutch spring 4 is in the central locking unlocking state, and the electric release lever 2 and the electric release auxiliary lever 3 are connected as one unit under the action of the release locking clutch spring 4. At this time, the guide transmission flange 16 on the electric release gear 12, the second limiting flange 15 at the end of the electric release lever 2, and the first transmission linkage 17 on the locking lever auxiliary lever 13 are all in a relatively disengaged state. If unlocking is required at this time, the electric release gear 12 rotates clockwise, thereby pushing the guide transmission flange 16 against the second limiting flange 15, causing the electric release lever 2 and the electric release auxiliary lever 3 to rotate clockwise as one unit. When the electric release auxiliary lever 3 rotates, it drives the release lever 14 to rotate, thereby completing the door locking. The initial release action is performed; when the central locking condition needs to be executed, the electric release gear 12 rotates counterclockwise, which in turn pushes the guide transmission flange 16 against the first transmission link 17 on the locking lever auxiliary rod 13 to rotate counterclockwise. The second transmission link 18, which extends into the first connecting groove 6 on the first connecting part 5, rotates together with the first transmission link 17 and drives the outer locking link 1 to move to the right as a whole. The first limiting rod 7 on the outer locking link 1 pushes against the bent part 401 on the release locking clutch spring 4, and slides the extension end of the release locking clutch spring 4 outward along the clutch groove 9 and is limited by the first limiting flange 801. At this time, the electric release lever 2 and the electric release auxiliary rod 3 are in a separated state. When the electric release lever 2 is driven to rotate by the electric release gear 12, the electric release auxiliary rod 3 does not work and enters the central locking state.

[0079] In the example of this application, the first transmission link 17 and the second transmission link 18 are integrally connected at an angle and disposed at the shaft of the electrically operated gear 12. The first transmission link 17 is disposed in the counterclockwise direction of the second transmission link 18. When the guide transmission flange 16 rotates counterclockwise with the electrically operated gear 12, the guide transmission flange 16 pushes the first transmission link 17 to rotate counterclockwise, thereby driving the second transmission link 18 integrally connected with it to rotate counterclockwise, thereby driving the outer locking link 1 to slide to the right, thus performing the central locking operation; and when the central unlocking operation needs to be performed, When the electric unlocking gear 12 rotates clockwise, the locking lever auxiliary rod 13 resets under the action of a first return spring at its pivot. When the electric unlocking function needs to be executed, the guide transmission flange 16 rotates clockwise with the electric unlocking gear 12, pushing against the second limiting flange 15 and rotating clockwise, thereby driving the electric unlocking release rod 2 to rotate clockwise. At this time, the electric unlocking release rod 2 and the electric unlocking release auxiliary rod 3 are connected as one unit through a release locking clutch spring. The electric unlocking release auxiliary rod 3 rotates as one unit with the electric unlocking release rod 2, thereby driving the release rod 14 to rotate and unlock the door. When the electric unlocking gear 12 resets after unlocking, the guide transmission flange 16 on the electric unlocking gear 12 disengages from the second limiting flange 15, and the release rod 14 can be reset by the return torsion spring 19. The electric unlocking release auxiliary rod 3 and the electric unlocking release rod 2 rotate counterclockwise to return to the initial state, waiting for the next unlocking or central locking operation. Preferably, a second reset spring for resetting is provided at the pivot portion 11 of the electrically operated release lever 2, and a fourth reset spring for resetting is provided at the pivot portion of the electrically operated gear 12.

[0080] This design, by setting a guide transmission flange 16 on the electric opening gear 12, further optimizes the working mechanism of the car door lock, enabling the rotation of the electric opening gear to effectively control the movement of the locking lever auxiliary lever and the electric opening release lever, achieving efficient linkage of the door lock system, ensuring flexible switching of the door lock system in different states, and improving the smoothness and security of operation.

[0081] As a preferred example of this application, the super lock release auxiliary rod 20 is hinged to the first transmission link 17, the super lock link 21 is disposed diagonally above the locking lever auxiliary rod 13, preferably to the upper left, and a third return spring is provided at the connection between the inner locking auxiliary rod 22 and the electric opening release auxiliary rod 3.

[0082] When the superlock mechanism is locked, the first transmission link 17 is driven to rotate clockwise by the electric opening gear 12, the superlock release auxiliary rod 20 drives the superlock link 21 to rotate counterclockwise, and the superlock link 21 drives the inner locking auxiliary rod 22 to rotate clockwise when rotating counterclockwise, driving the inner locking auxiliary rod 22 and the electric opening release auxiliary rod 3 to the superlock locking position, and the inner release pull rod 23 disengages from the inner locking auxiliary rod 22 when it is pulled and rotated.

[0083] When the super lock mechanism is unlocked, the inner locking auxiliary rod 22 returns to the state of being connected to the inner release rod 23 under the action of the third return spring. When the inner release rod 23 is pulled, the inner locking auxiliary rod 22 and the electric release auxiliary rod 3 can rotate together, thereby pushing the release rod 14 to rotate and open the door lock.

[0084] This configuration defines the superlock mechanism of the multi-functional car door lock described in this application. When the superlock mechanism is in the locked state, the electric opening gear 12 drives the first transmission linkage 17 to rotate clockwise, thereby driving the superlock release auxiliary rod 20 to move upward. The superlock linkage 21 then rotates counterclockwise, causing the inner locking auxiliary rod 22 to rotate clockwise. This drives the inner locking auxiliary rod 22 and the electric opening release auxiliary rod 3 together to the superlock locking position. At this time, the inner release lever 23 disengages from the inner locking auxiliary rod 22 when it is pulled and rotated, ensuring that the door lock is in the locked state. In the unlocked state, the third return spring causes the inner locking auxiliary rod 22 to return to the state of being connected to the inner release lever 23. Pulling the inner release lever 23 can drive the inner locking auxiliary rod 22 and the electric opening release auxiliary rod 3 to rotate together, ultimately pushing the release lever 14 to rotate and open the door lock. This series of actions ensures the efficiency and reliability of the superlock mechanism in the locking and unlocking process, and improves the security and flexibility of the door lock.

[0085] The multi-functional car door lock disclosed in this application is based on an integrated drive device via an electric opening gear 12, which enables efficient switching between multiple functions such as electric opening, central locking and release, and super lock locking and unlocking. The design incorporates a locking lever auxiliary rod 13 and various spring mechanisms to ensure coordinated operation between components, thereby enhancing the lock's security and reliability. This multi-functional car door lock reduces the number of components, simplifies the structure, lowers production and maintenance costs, improves system stability, avoids potential failure points caused by the coordinated operation of multiple components, optimizes the user experience, and makes door lock operation more convenient and smooth, meeting the modern consumer demand for automotive safety and intelligence.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-functional car door lock, characterized in that, include: The driving device includes an electric opening gear (12), which can perform the electric opening function, the switching function between the central locking state and the central unlocking state of the central locking mechanism, and the switching function between the locking state and the unlocking state of the super lock mechanism when rotating. The door lock mechanism includes an electric release lever (2), an electric release auxiliary lever (3), and a release lever (14). When the electric release gear (12) performs the electric release function, it drives the electric release lever (2) and the electric release auxiliary lever (3) to rotate together, thereby pushing the release lever (14) to rotate and open the door lock. The central locking mechanism includes an outer locking link (1). When the electric opening gear (12) rotates, the outer locking link (1) can drive the outer locking link (1) to slide or rotate, thereby engaging or disengaging the electric opening release rod (2) and the electric opening release auxiliary rod (3). The super lock mechanism includes a super lock link (21), which can be directly or indirectly driven to rotate by the electric opening gear (12), thereby locking or unlocking the inner locking auxiliary rod (22). The inner locking auxiliary rod (22) is connected to the electric opening release auxiliary rod (3). When the inner locking auxiliary rod (22) is in the locked position, the inner release pull rod (23) and the inner locking auxiliary rod (22) pull-unlock function are disabled.

2. The multi-functional car door lock according to claim 1, characterized in that, The electric release rod (2) is provided with a rotating shaft (11), and a release locking clutch spring (4) is provided on the rotating shaft (11). The release locking clutch spring (4) can connect the electric release rod (2) and the electric release auxiliary rod (3) into one unit. The outer locking link (1) drives the extension end of the release locking clutch spring (4) to move away from the electric release auxiliary rod (3) through horizontal movement or rotation, and separates the electric release rod (2) from the electric release auxiliary rod (3).

3. The multi-functional car door lock according to claim 2, characterized in that, A first limiting baffle (8) is provided on the rotating shaft (11), and a second limiting baffle (10) is provided on the electric release auxiliary rod (3). A clutch groove (9) is formed between the first limiting baffle (8) and the second limiting baffle (10). The second limiting baffle (10) and the first limiting baffle (8) form a misalignment groove in the inward and outward directions, which is used to separate the electric release rod (2) from the electric release auxiliary rod (3) when the release locking clutch spring (4) is pushed outward by the first limiting rod (7) on the outer locking link (1).

4. The multi-functional car door lock according to claim 3, characterized in that, The length of the second limiting baffle (10) in the inner and outer directions is less than the length of the first limiting baffle (8) in the inner and outer directions. A first limiting flange (801) is provided at the end of the clutch groove (9) away from the electric release auxiliary rod (3). The first limiting flange (801) is provided on the first limiting baffle (8).

5. The multi-functional car door lock according to claim 4, characterized in that, The release locking clutch spring (4) has an inwardly recessed bent portion (401) at its extended end near the first limiting rod (7). When the first limiting rod (7) pushes the bent portion (401), it can drive the release locking clutch spring (4) to slide outward. The release locking clutch spring (4) resets when the first limiting rod (7) disengages from the bent portion (401).

6. The multi-functional car door lock according to claim 5, characterized in that, A first connecting part (5) is provided on the outer locking link (1). The first connecting part (5) and the first limiting rod (7) are located on opposite sides of the rotating shaft (11). A first connecting groove (6) is provided on the first connecting part (5). When the electric opening gear (12) rotates, it drives the locking lever auxiliary rod (13) to rotate. The locking lever auxiliary rod (13) extends into the first connecting groove (6) and drives the outer locking link (1) to slide horizontally to the left and right sides when the electric opening gear (12) rotates forward and backward.

7. The multi-functional car door lock according to any one of claims 1 to 6, characterized in that, An external release auxiliary rod (25) is hinged and fixed on the external locking link (1). The external release auxiliary rod (25) can be driven to rotate by the external release pull rod (24). When the external locking link (1) is driven to the central locking state by the electric opening gear (12), the external release auxiliary rod (25) is pulled to one side by the external locking link (1). When the external release pull rod (24) is driven to rotate, it disengages from the external release auxiliary rod (25). When the external locking link (1) is driven to the central unlocking state by the electric opening gear (12), the external release pull rod (24) can drive the external release auxiliary rod (25) to rotate when it rotates, thereby driving the release rod (14) to rotate and open the door lock.

8. The multi-functional car door lock according to claim 7, characterized in that, A locking lever auxiliary rod (13) is provided on the electric gear (12). The locking lever auxiliary rod (13) includes a first transmission link (17) and a second transmission link (18). When the second transmission link (18) rotates with the electric gear (12), it can drive the outer locking link (1) to slide. When the first transmission link (17) rotates with the electric gear (12), it can drive the super lock link (21) to rotate through the super lock release auxiliary rod (20).

9. The multi-functional car door lock according to claim 8, characterized in that, A guide transmission flange (16) is provided on the electric gear (12). When the electric gear (12) rotates counterclockwise, the guide transmission flange (16) can drive the locking lever auxiliary rod (13) to rotate counterclockwise. When the electric gear (12) rotates clockwise, the guide transmission flange (16) can drive the second limiting flange (15) provided at the cantilever end of the electric release rod (2) to rotate clockwise, or it can drive the electric release rod (2) and the locking lever auxiliary rod (13) to rotate clockwise.

10. The multi-functional car door lock according to claim 8, characterized in that, The super lock release auxiliary rod (20) is hinged to the first transmission link (17), the super lock link (21) is located diagonally above the locking lever auxiliary rod (13), and a third reset spring for self-resetting is provided at the connection between the inner locking auxiliary rod (22) and the electric opening release auxiliary rod (3).

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