Automobile door heaven and earth lock with self-suction, electric unlocking and self-suction interruption functions

Abstract

The invention discloses an automobile door heaven and earth lock with self-suction, electric opening and self-suction interruption functions, which comprises a shell, a ratchet wheel, a self-suction assembly and an interruption assembly, the self-suction assembly comprises a driving device, a transmission structure and a self-suction rod, the transmission structure is composed of a transmission gear and a sector gear and drives the self-suction rod to drive the ratchet wheel to rotate, and the sector gear drives the ratchet wheel to rotate. The interruption assembly comprises a brake device and a release rod, the release rod drives the self-suction rod to be separated from the ratchet wheel under driving of the brake device, interruption of the suction process is achieved, the reverse movement of the self-suction rod can also be linked with the pawl to release limiting of the ratchet wheel, and the ratchet wheel is automatically reset under the action of the torsional spring to achieve electric opening operation. Driving, self-suction, braking and unlocking structures are highly integrated in the small shell, efficient cooperation of suction control, resistance interruption and elastic unlocking is achieved through the linkage assembly, suction reliability and safety are guaranteed, and quick response and intelligent control under the small size are achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile door locks, and in particular relates to an automobile door top and bottom lock with self-priming, electric opening and self-priming interruption functions. Background Art

[0002] With the continuous advancement of automotive intelligence and safety, door locks, as crucial actuators for ensuring reliable door closure and occupant safety, are facing higher technical requirements for their structural design and functional integration. In recent years, door locks with a "self-priming function" have gradually become standard equipment in mid- to high-end vehicles. These locks actively close the door to a fully locked position through an electric drive system when the door is not fully closed, preventing problems such as ajar and accidental closure, improving user convenience and overall vehicle safety.

[0003] To further mitigate potential risks associated with the door's self-priming process, such as pinching fingers or obstruction, some door lock designs incorporate a "self-priming interruption" feature. This feature quickly disengages the locking mechanism upon detecting an anomaly, terminating the locking process and ensuring the safety of both personnel and equipment. Door lock technology with both a locking and interruption function has become a key development direction for automotive door locks.

[0004] Existing self-priming interruption technologies often utilize components such as a drive module, a self-priming push rod, a ratchet, and a connecting rod mechanism to collaboratively control the engagement and interruption of the lock. For example, the applicant previously proposed a vehicle door lock device with both engagement and interruption functions in their invention patent application number CN222731310U. This device uses an electric drive to drive a self-priming push rod to push a ratchet to achieve engagement and locking. When interruption is required, the push rod is disengaged from the ratchet by releasing a linkage rod to connect the interruption mechanism, completing the self-priming interruption process. This technical structure demonstrates certain practicality and reliability in implementing basic self-priming and interruption control logic, and is suitable for conventional-sized door lock devices.

[0005] However, driven by the trend toward lighter and smaller vehicles, and the increasing demand for efficient space utilization in compact areas like door frames and floor locks, automotive door locks are gradually evolving towards miniaturization. Due to their smaller size and more compact structure, these locks are suitable for installation in extremely limited spaces. This poses greater challenges to the lock's structural integration, responsiveness, and spatial adaptability.

[0006] In this type of automotive door lock application scenario, the existing door lock structure with self-priming interruption function still has certain technical limitations, which are specifically manifested in the following aspects: First: In terms of structural miniaturization and adaptability, although the existing door lock structure is fully functional, it is composed of multiple mechanical units, including pawls, self-priming push rods, ratchet wheels and multi-stage connecting rods. Its overall structure still relies on a relatively ample installation space and is difficult to be effectively arranged inside the car door lock. There are problems such as assembly interference and motion conflict, which limits its feasibility of application in small-sized shells.

[0007] Second: In terms of transmission path and response efficiency, traditional door lock structures mostly rely on multi-stage connecting rods and compound drive paths to achieve attraction and interruption control. There are problems such as long transmission path, poor action synchronization, and response delay. It is not conducive to use in high-frequency opening and closing or working conditions requiring rapid emergency response. It is difficult to meet the dual requirements of automobile door floor lock systems for high efficiency and high responsiveness.

[0008] Third: In terms of structural integration and reliability, existing solutions usually arrange the drive device, self-priming mechanism and interruption mechanism in the form of dispersed components, and the system integration is relatively low. Not only does it take up a large space and have complex connections, but it is also difficult to achieve systematic coordinated motion control in a micro-housing. There are reliability risks such as unstable transmission coupling and uneven reset, which affect its long-term operation and user experience.

[0009] In addition, the existing suction interruption mechanism also has shortcomings in power output capacity and structural flexibility. Although the car door top and bottom lock has a compact structure, it still needs to provide sufficient locking force to cope with the vibration and impact that may be generated during vehicle operation. The traditional multi-stage mechanism is difficult to balance force output and structural stability after reducing its size, and the transmission efficiency and engagement accuracy are difficult to guarantee, which further limits its practical application in miniaturized door locks.

[0010] To sum up, although the existing door lock technology with self-priming and interruption functions has realized basic functions in traditional structures, it still faces technical bottlenecks such as large structural volume, complex power path, weak response capability and poor integration adaptation in the process of development towards miniaturization, high integration and high response. It is urgent to propose a new suction and interruption mechanism suitable for the car door top and bottom lock structure to achieve efficient coordination between compact structure and precise control, and meet the integrated door lock design requirements of modern automobiles in terms of intelligence, safety and space adaptation. Summary of the Invention

[0011] The present invention aims to solve the technical problems of existing self-priming door lock structures in miniaturized application scenarios, such as large structural volume, complex transmission, slow response and low integration. It discloses a car door top and bottom lock with integrated self-priming, electric opening and self-priming interruption functions. The driving, self-priming, braking and unlocking structures are highly integrated in a small shell, and the linkage components are used to achieve efficient coordination of suction control, resistance interruption and elastic unlocking. It not only ensures the suction reliability and safety, but also realizes rapid response and intelligent control in a small volume. It is suitable for scenarios with limited installation space such as door frames and top and bottom locks.

[0012] In view of this, the present invention provides a car door top and bottom lock with self-priming, electric opening and self-priming interruption functions, comprising: The outer shell is in the shape of a long strip, an arc or a V, and is used to accommodate the installation of the ratchet, the self-priming component and the interruption component; The ratchet wheel can rotate around the first rotating shaft provided thereon and cooperate with the lock catch to realize locking or releasing the vehicle door; The self-priming assembly includes a driving device, a transmission structure, and a self-priming rod. The driving device drives the self-priming rod to move toward or away from the ratchet along a preset path through the transmission structure, thereby driving the ratchet to rotate to achieve the suction and locking of the vehicle door. An interruption assembly, comprising a brake device and a release lever, wherein the release lever is capable of driving the self-priming rod to move away from the ratchet wheel under the drive of the brake device to interrupt the self-priming action; The pawl is rotatably arranged in the housing and is linked with the self-priming rod. When the self-priming rod moves away from the ratchet, the pawl moves synchronously in the direction away from the ratchet to release the limiting constraint on the ratchet, so that the ratchet is automatically reset under the action of the torsion spring on the first rotating shaft, thereby realizing the electric opening of the car door.

[0013] In a preferred example of the present application, the housing includes a substrate, the length of the substrate is L, the height of the substrate is H, the value range of L:H is 1.6~5.6, and H is less than 60mm.

[0014] In a preferred example of the present application, the release lever includes a limiting portion and a rotating portion arranged at an angle, the rotating portion is hingedly rotated relative to the base plate through a fourth rotating shaft, and the limiting portion rotates integrally with the rotating portion, and is used to drive the self-priming rod to disengage in a direction away from the ratchet when the rotating portion rotates.

[0015] In a preferred example of the present application, an outwardly protruding connecting portion is formed at the angle connection between the limiting portion and the rotating portion, a connecting shaft is provided on the connecting portion, and the braking device is pulled and connected to the connecting shaft by a pull rope.

[0016] In a preferred example of the present application, the fourth rotating shaft is arranged on an end of the rotating portion away from the connecting portion and close to the edge of the substrate, and the fourth rotating shaft is arranged on the pawl.

[0017] In a preferred example of the present application, the self-priming rod includes a rod body, and a limiting shaft is provided on the rod body. The limiting portion abuts against the limiting shaft during the self-priming interruption process and drives the self-priming rod to move toward the side away from the ratchet. The limiting shaft drives the pawl to rotate toward the side away from the ratchet during the electric opening process.

[0018] In a preferred example of the present application, the self-priming interruption component also includes a transmission structure, which includes a transmission gear and a fan gear. The fan gear engages and rotates with the transmission gear. The transmission gear can be driven to rotate by the driving device and drives the self-priming rod to move closer to or away from the ratchet through the fan gear.

[0019] In a preferred example of the present application, the transmission gear includes a double-layer first gear portion and a second gear portion, and the first gear portion and the second gear portion are respectively engaged with the driving device and the sector gear for transmission.

[0020] In a preferred example of the present application, a self-priming auxiliary rod is provided on the sector gear, and the self-priming auxiliary rod is hingedly connected to the sector gear through a second rotating shaft, and is hingedly connected to the self-priming rod through a third rotating shaft, for driving the self-priming rod to move as the sector gear rotates.

[0021] In a preferred example of the present application, the ratchet includes a ratchet body, which can rotate around a first rotating axis. A first limiting groove that cooperates with the lock is provided on one side of the ratchet body, and a first boss that cooperates with the self-priming rod is provided on the other side.

[0022] Compared with the prior art, the car door lock with self-priming, electric opening and self-priming interruption functions of the present invention has the following advantages: 1. This application integrates a ratchet, a self-priming component, and an interrupt component in a long, arc-shaped, or V-shaped housing with a main body height of less than 60 mm, so that the entire top and bottom lock device can adapt to the layout requirements in narrow spaces such as door frames and top and bottom locks. The self-priming component adopts a double-layer transmission gear and fan-shaped gear structure driven by an electric drive device, so that the transmission path is distributed along the axial direction of the housing and precisely meshes with the self-priming rod structure. The transmission power is flexibly connected to the self-priming auxiliary rod through the fan gear. The movement trajectory of the self-priming rod is clear and stable, maintaining high power conversion efficiency and smooth and interference-free movement transmission under compact space conditions. The release rod in the interrupt component adopts an angled layout structure between the limit part and the rotating part and is arranged near the edge of the base plate, so that the interrupt function still has a reliable trigger path and sufficient rotation space in a restricted installation environment. The modular function superposition and motion path overlapping design significantly reduce the number of independent components, making the entire mechanism compact, complete, and highly adaptable, suitable for the upgrade and transformation or supporting integration of smart door locks of various models.

[0023] 2. In terms of suction control, the self-priming rod can be pushed toward the ratchet under the action of electric drive and cooperate with the first boss of the ratchet to drive the ratchet to rotate, finally making it engage with the lock limit groove to achieve locking. In this process, the self-priming auxiliary rod is flexibly connected through the second and third rotating shafts to ensure that the self-priming rod moves smoothly and the impact is mitigated. The self-priming path is accurately positioned, the response speed is fast, and the locking stability is strong. In terms of interruption control, the release rod can rotate around the fourth rotating shaft under the traction of the braking device, and its limiting part abuts against the limiting shaft on the self-priming rod to quickly push it away from the ratchet direction to terminate the suction action, forming an electric control The abnormal resistance response mechanism under the condition of the brake effectively avoids safety risks such as pinching hands and objects. In terms of electric opening control, the reverse movement of the self-priming rod drives the pawl to rotate synchronously away from the ratchet and release the limit on the ratchet. The ratchet is automatically reset and unlocked under the action of the torsion spring force set at the first rotating shaft, and there is no need to rely on an independent electric unlocking actuator. The entire action chain consists of a single drive device and a closed-loop control channel composed of a ratchet-self-priming rod-pawl-release rod. The function switching is precise, the response is immediate, and the action is reliable, which is suitable for the high standards of the current intelligent vehicle system for safety response speed.

[0024] 3. While ensuring the efficiency of action execution, this application fully embodies the design concept of low energy consumption and high stability. All key linkage components such as the release rod, self-priming rod, and self-priming auxiliary rod are hinged through independently set rotating shafts and are equipped with torsion spring structures at their rotating parts to achieve automatic reset after action. No external reverse drive is required to complete the closed-loop action, ensuring that the mechanism still has good reset ability and long-term stability under high-frequency use. During the conversion of each function of attraction, interruption and electric opening, power transmission is completed with a shorter path, which shortens the response time and avoids energy loss caused by redundant transmission. It is particularly suitable for automobile door floor and ceiling lock systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the internal structure of a car door lock with self-priming, electric opening and self-priming interruption functions according to an embodiment of the present invention; Figure 2 This is a structural diagram of a car door top and bottom lock and a lock catch in a locked state with self-priming, electric opening and self-priming interruption functions according to an embodiment of the present invention; Figure 3 This is a structural diagram of a car door ceiling lock in a self-priming state with self-priming, electric opening, and self-priming interruption functions according to an embodiment of the present invention; Figure 4 for Figure 3 Schematic diagram of the structure after removing the lock; Figure 5 This is a structural diagram of a car door top and bottom lock with self-priming, electric opening and self-priming interruption functions in the electric opening state according to an embodiment of the present invention; Figure 6 This is a structural diagram of a car door top and bottom lock with self-priming, electric opening and self-priming interruption functions according to the second embodiment of the present invention; Figure 7 This is a right-side structural schematic diagram of a car door top and bottom lock with self-priming, electric opening, and self-priming interruption functions according to an embodiment of the present invention; The marks in the figure are: 1. Housing; 101. Base plate; 2. Driving device; 3. Transmission structure; 31. Transmission gear; 311. First gear part; 312. Second gear part; 32. Fan gear; 321. Second rotating shaft; 33. Self-priming auxiliary rod; 331. Third rotating shaft; 4. Self-priming rod; 41. Rod body; 42. Limiting shaft; 5. Interruption component; 51. Pull rope; 52. Release rod; 521. Limiting part; 522. Rotating part; 523. Connecting part; 524. Connecting shaft; 53. Fourth rotating shaft; 6. Ratchet; 61. Ratchet body; 62. First limiting groove; 63. First boss; 64. First rotating shaft; 7. Lock; 8. Pawl; 9. Self-priming component. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0027] It should be noted that all terms used in the present invention to indicate direction and position, such as "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", "top", "low", "lateral", "longitudinal", "center", etc., are only used to explain the relative positional relationship and connection status between the various components in a certain specific state (as shown in the accompanying drawings). They are only for the convenience of describing the present invention, and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention. In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features.

[0028] In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical connections; direct connections or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0029] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses 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 any one or more embodiments or examples.

[0030] like Figures 1 to 7 As shown, the present application discloses a car door top and bottom lock with self-priming, electric opening and self-priming interruption functions, comprising: The housing 1 is in the shape of an elongated strip, an arc or a V, and is used to accommodate and install the ratchet 6, the self-priming component 9 and the interruption component 5; The ratchet 6 can rotate around the first rotating shaft 64 provided thereon and cooperate with the lock catch 7 to lock or release the vehicle door; The self-priming assembly 9 includes a drive device 2, a transmission structure 3, and a self-priming rod 4. The drive device 2 drives the self-priming rod 4 to move toward or away from the ratchet 6 along a set path through the transmission structure 3, thereby driving the ratchet 6 to rotate and realize the suction and locking of the vehicle door; The interruption assembly 5 includes a brake device and a release rod 52. The release rod 52 can be driven by the brake device and drive the self-priming rod 4 to move away from the ratchet 6 to interrupt the self-priming action; The pawl 8 is rotatably arranged in the housing 1 and is linked to the self-priming rod 4. When the self-priming rod 4 moves away from the ratchet 6, the pawl 8 can synchronously move in the direction away from the ratchet 6, releasing the limit constraint on the ratchet 6, so that the ratchet 6 self-resets under the action of the torsion spring force on the first rotating shaft 64, thereby realizing the electric opening function.

[0031] The present application discloses a car door skylight lock with self-priming, electric opening and self-priming interruption functions. Its structure takes high integration and compactness as the core design goals, and is adapted to the installation environment in the narrow door structure of modern cars. The skylight lock includes a long, arc-shaped or V-shaped shell 1 for compactly accommodating a ratchet 6, a self-priming component 9 and an interruption component 5, wherein the ratchet 6 is a core locking component, which is rotatable on a first rotating shaft 64 and cooperates with a door lock catch 7 to achieve door locking. The self-priming component 9 is composed of a driving device 2, a transmission structure 3 and a self-priming rod 4. The driving device 2 accurately transmits power to the self-priming rod 4 through the transmission structure 3, so that it moves along a set path and drives the ratchet 6 to rotate, thereby realizing the locking process. The structural arrangement is reasonable, the power transmission is accurate, and the door is not fully closed. When the door is unlocked, the self-priming rod 4 is automatically released and the latch 52 is released, so that the door is automatically unlocked. When the door is closed, the driving device 2 starts, and the output power is converted by the transmission structure 3 and acts on the self-priming rod 4, so that the self-priming rod 4 moves in the direction close to the ratchet 6 and cooperates with it, pushing the ratchet 6 to a position engaged with the lock catch 7 to complete the locking. If the system detects an object or resistance during the attraction process, the braking device immediately responds and drives the release rod 52 to rotate and push the self-priming rod 4 away from the ratchet 6, thereby disengaging it from the ratchet 6, terminating the attraction process and preventing the door lock from continuing to close, avoiding pinching or causing damage to the mechanism. In the electric opening condition, the self-priming rod 4 retreats under the drive of the reverse movement of the transmission structure 3, and at the same time drives the pawl 8 to rotate synchronously in the direction away from the ratchet 6, so that the pawl 8 releases the limit constraint on the ratchet 6. At this time, the ratchet 6 is automatically reset around the first rotating shaft 64 under the action of the torsion spring elastic force, and disengages the lock catch 7 to realize automatic opening of the door lock. The entire attraction, disengagement and reset process is automatically completed under the linkage of the self-priming component, the interruption component and the pawl structure, with a short control path, fast action and seamless function switching.

[0032] The present application integrates the ratchet 6, the self-priming component 9 and the interruption component 5 in a compact shell structure, so that the skylight lock can simultaneously realize the three functions of automatic suction, abnormal interruption and electric unlocking in a small space. The self-priming component 9 uses electric drive control to accurately push the ratchet 6, so that the lock buckle 7 closes quickly to avoid the risk of ajar. The interruption component 5 realizes real-time interruption response to the self-priming process through the release rod structure, significantly improving the safety control capability when encountering obstacles, thereby ensuring that the occupants are not pinched or foreign objects are not stuck. The introduction of the pawl structure realizes the linkage release of the self-priming rod and the ratchet state, so that the ratchet can automatically reset and complete unlocking under the drive of the torsion spring. This structure does not require an external electric device to complete the electric opening operation after release, effectively reducing power resource consumption and the number of components. The entire mechanism is constructed through relatively independent suction, interruption and electric opening functional modules and establishes a precise linkage relationship, so that the system has a clear action response path, stable execution force and good control consistency in each link of locking, interruption and unlocking, significantly improving the overall performance of the car door skylight lock in terms of intelligent safety, energy saving efficiency and structural adaptability.

[0033] As a preferred example of the present application, the housing 1 includes a base plate 101 having a length L and a height H, with the ratio L:H ranging from 1.6 to 5.6, and H less than 60 mm. In this example, the base plate 101 serves as the mounting carrier for the entire mechanism and can be arranged in a strip, arc, or V-shaped configuration, flexibly adapting to the various spatial requirements of the vehicle door interior. It not only secures the drive unit 2, transmission assembly 3, self-priming rod 4, and release lever 52, but also rationally allocates the mounting area for each module through its length-to-height ratio and external layout, enabling the various functional components to be arranged linearly or in an arc along the surface of the base plate 101 while maintaining continuity and non-interference in the motion path. When the transmission assembly 3 or the release lever 52 drives the self-priming rod 4 toward or away from the ratchet 6 to achieve the closing or interrupting function, the base plate 101, through its rational layout, ensures a clear mechanical transmission path between the various components, stable support, and smooth movement. The overall structure can efficiently and collaboratively complete the self-priming closing and interrupting response processes within a confined space. Preferably, H≤55mm.

[0034] As a preferred example of the present application, the release lever 52 includes a limiting portion 521 and a rotating portion 522 arranged at an angle. The rotating portion 522 is hinged and rotated relative to the base plate 101 through a fourth rotating shaft 53. The limiting portion 521 rotates integrally with the rotating portion 522, and is used to drive the self-priming rod 4 to disengage in a direction away from the ratchet 6 when the rotating portion 522 rotates. In the example of the present application, the release rod 52 in the interruption component 5 adopts an integrated design consisting of a limiting portion 521 and a rotating portion 522, and the two are arranged at an angle, preferably 60°~150°, wherein the rotating portion 522 is hinged to the door lock substrate 101 through the fourth rotating shaft 53 to form a stable rotating fulcrum, so that the release process is not affected by space interference and the movement is smooth, and the limiting portion 521 rotates as a whole with the movement of the rotating portion 522, and forms a contact relationship with the self-priming rod 4 within a specific path. When the release action occurs, the limiting portion 521 can efficiently and accurately separate the self-priming rod 4 from the meshing state with the ratchet 6 under the mechanical cooperation of the angle arrangement, thereby achieving the effect of terminating the ratchet 6 suction drive, interrupting the self-priming process and preventing the car door from continuing to be sucked and locked.

[0035] The present application adopts a release rod 52 with an integrally formed structure of an angled limiting portion 521 and a rotating portion 522. Compared with the ordinary linear push-pull release structure, the present application has higher control accuracy and structural adaptability. The angled layout enables the limiting portion 521 to have a clear direction of action and trajectory during rotation, and can accurately contact and disengage the meshing relationship between the self-priming rod 4 and the ratchet 6 within a very short stroke, effectively avoiding abnormal phenomena such as jamming, offset or invalid contact, and at the same time realizing complex release control in a very small space, greatly improving the compactness and action reliability of the car door sky and earth lock interruption structure, so that the door can still respond and terminate the suction action in the first time in sudden situations such as foreign object obstruction, finger pinching risk or control system failure, thereby ensuring the safety of occupants and equipment and enhancing the stability and practical value of the overall door lock system.

[0036] As a preferred example of the present application, an outwardly protruding connecting portion 523 is formed at the angle connection between the limiting portion 521 and the rotating portion 522, a connecting shaft 524 is provided on the connecting portion 523, and the braking device is pulled and connected to the connecting shaft 524 by a pull rope 51. In the example of the present application, an outwardly protruding connecting portion 523 is provided at the angle position between the limiting portion 521 and the rotating portion 522 in the release rod 52 structure. The connecting portion 523 serves as a key connecting structure for the pull-interruption action. A connecting shaft 524 is provided on it. The braking device forms a stable connection with the connecting shaft 524 through a flexible pull rope 51. Through this arrangement, the tension input path can be clearly constructed and the transmission efficiency can be guaranteed without increasing the structural size of the release rod 52. This structure can not only efficiently transmit the tension of the pull rope 51 to the release rod 52 body, but also avoid the interference problem caused by insufficient space in the conventional arrangement. At the same time, a spatially independent and clearly moving linkage path is formed between the braking device and the release rod 52, ensuring the continuous and reliable operation of the door lock interruption function under frequent use or complex working conditions, and helping to improve the stability and response speed of the overall interruption action. It is especially suitable for scenarios with compact structural space and limited control paths such as car door floor locks.

[0037] As a preferred example of the present application, the fourth rotating shaft 53 is disposed on the rotating portion 522 at an end away from the connecting portion 523. In the example of the present application, during the design process of the release lever 52 structure, the fourth rotating shaft 53 was precisely arranged at the end of the rotating portion 522 away from the connecting portion 523 and positioned close to the edge of the base plate 101. This layout design is based on a systematic consideration of the overall rotation path and force distribution of the release lever 52. The placement away from the connecting portion 523 maximizes the swing radius of the release lever 52, thereby enhancing its rotational response efficiency under tension. The spatial arrangement close to the edge of the base plate 101 provides more room for the release lever 52 to rotate, effectively avoiding possible motion interference with adjacent components during the release process. It also facilitates the realization of a reasonable mechanism layout within the compact car door lock housing, making the overall structure more regular and more integrated. The arrangement of the rotating shaft position achieves a dual improvement in the optimization of the rotation fulcrum and the movement space without increasing the overall size of the mechanism, which is a refined design that balances structural compactness and functional responsiveness. Preferably, the rotating shaft of the pawl 8 is also arranged at a position close to the edge of the substrate 101, and the fourth rotating shaft 53 for rotating the release lever 52 is arranged on the pawl 8, which further enhances the compactness of the entire system structure and the efficiency of motion coordination. In this structure, the ratchet 6 is elastically pre-tightened by a torsion spring arranged on the first rotating shaft 64. When the pawl 8 moves away from the ratchet 6 and releases the restriction on the ratchet 6, the ratchet 6 can self-reset under the action of elastic force to complete the electric opening operation. This design not only expands the ratchet control method in the self-priming and interruption states, but also further improves the response speed and structural coordination of the entire system.

[0038] As a preferred example of the present application, the self-priming rod 4 includes a rod body 41, and a limiting shaft 42 is provided on the rod body 41. The limiting portion 521 abuts against the limiting shaft 42 during the self-priming interruption process and drives the self-priming rod 4 to move toward the side away from the ratchet 6. The limiting shaft 42 drives the pawl 8 to rotate toward the side away from the ratchet 6 during the electric opening process. In the automobile door lock with self-priming, electric opening and self-priming interruption functions described in the present application, the self-priming rod 4 is composed of a rod body 41, and a limit shaft 42 is provided on the rod body 41. The limit shaft 42 serves as a dual-action transmission point for the interruption action and the electric opening action. During the self-priming interruption process, the limit shaft 42 forms a contact relationship with the limit part 521 on the release rod 52. When the release rod 52 rotates under the action of the braking device, the limit part 521 and the limit shaft 42 are in stable contact and continuously apply force, so that the self-priming rod 4 moves away from the ratchet 6 in a predetermined direction, and then disengages the ratchet 6, completing the interruption of the suction action; at the same time, in the electric opening working state In this state, the limit shaft 42 can also drive the pawl 8 set in the shell 1 to rotate synchronously with the movement of the self-priming rod 4, so that the pawl 8 and the ratchet 6 are disengaged, and the rotational freedom of the ratchet 6 is released, so that it can reset itself under the action of the rotating shaft torsion spring, thereby completing the disengagement of the ratchet 6 and the lock buckle 7, and realizing the electric unlocking action. The limit shaft 42 forms a functional center for the dual actions of interruption and electric opening through precise arrangement and reasonable structural fulcrum, which not only reduces the number of structural elements, but also significantly improves the control accuracy, movement efficiency and response stability of the overall structure. It is an innovative design with the advantages of multi-functional control and structural integration.

[0039] The present application realizes an optimized configuration of mechanism reuse and function integration by integrating a limit shaft 42 on the self-priming rod 4 as a common triggering node for self-priming interruption and electric opening. This structure not only ensures that the release rod 52 and the self-priming rod 4 can be in stable contact and efficiently apply force under the interruption condition, ensuring that the self-priming action is quickly terminated, but also can smoothly drive the pawl 8 out of the ratchet 6 during the electric opening action, providing the ratchet 6 with unlocking freedom, so that it can rely on elastic force to complete automatic reset, thereby simplifying the action path and transmission chain of the entire door lock system, improving the structural simplicity and component reliability, and greatly reducing the manufacturing difficulty and assembly complexity, providing the car door sky and earth lock with higher response speed, lower failure rate and stronger adaptability in multiple scenarios and high-frequency use, so that the car door sky and earth lock system can achieve a compact structure and high integration while covering multi-functional control requirements including suction, interruption and electric opening, comprehensively improving user experience and intelligent safety control level.

[0040] As a preferred example of the present application, the transmission structure 3 includes a transmission gear 31 and a sector gear 32. The sector gear 32 engages and rotates with the transmission gear 31. The transmission gear 31 can be driven to rotate by the driving device 2 and drives the self-priming rod 4 to move closer to or away from the ratchet 6 through the sector gear 32. In the example of the present application, the transmission structure 3 adopts a two-stage linkage mechanism composed of a transmission gear 31 meshing with a sector gear 32. The transmission gear 31 is connected to the output end of the drive device 2, and realizes forward and reverse rotation under the drive of the motor or other driving source. The rotational power is transmitted to the self-priming rod 4 through the sector gear 32 meshing therewith. The design of the sector gear 32 not only expands the lever arm and improves the output control accuracy of the self-priming rod 4, but also effectively adapts to the limited structural space inside the car door lock. Through the arrangement of the transmission structure, the path of power from the motor output end to the self-priming rod 4 is simplified and coherent, and the self-priming rod 4 can be moved in both directions according to the change of the rotation direction of the transmission gear 31, thereby realizing active control of the self-priming closing action and automatic switching of the interruption preparation state. This design gives the power transmission link the advantages of fast directional response, controllable motion path, and high structural integration.

[0041] In the example of the present application, the transmission gear 31 includes a double-layered first gear portion 311 and a second gear portion 312, which mesh with the drive device 2 and the sector gear 32, respectively. By adopting a transmission structure 3 composed of the transmission gear 31 and the sector gear 32, the present application not only significantly improves power transmission efficiency and output control accuracy, but also achieves flexible control of the movement direction of the self-priming rod 4 through its compact meshing relationship. Especially in the space-constrained automobile door lock structure, this meshing mechanism can fully utilize the limited space inside the shell for staggered arrangement, effectively reducing the axial stacking thickness and overall structural dimensions. In terms of functional implementation, this structure can achieve the forward and backward switching of the self-priming rod 4 by simply changing the direction of the motor, without the need for a complex reversing mechanism, which helps to improve product integration and manufacturing simplicity. In addition, the meshing structure has strong rigidity and low wear, can maintain stable transmission efficiency and power output over a long period of time, and ensure that the self-priming and interruption actions remain accurate and consistent after repeated operation, providing strong structural support and functional guarantee for the high-frequency use environment of automobile door locks. In the example of the present application, the thickness of the car door top and bottom lock does not exceed 40 mm.

[0042] As a preferred example of the present application, a self-priming auxiliary rod 33 is provided on the sector gear 32, and the self-priming auxiliary rod 33 is hingedly connected to the sector gear 32 through a second rotating shaft 321, and is hingedly connected to the self-priming rod 4 through a third rotating shaft 331, for driving the self-priming rod 4 to move as the sector gear 32 rotates. In the example of the present application, a self-priming auxiliary rod 33 is provided at the outer edge of the sector gear 32, one end of the auxiliary rod is hingedly fixed to the sector gear 32 through the second rotating shaft 321, and the other end is connected to the self-priming rod 4 through the third rotating shaft 331, so that when the sector gear 32 rotates, a power transmission path with variable angle response characteristics is formed. The setting of the auxiliary rod makes the movement relationship between the sector gear 32 and the self-priming rod 4 no longer a rigid linkage, but a flexible guidance and continuous drive are achieved through an articulated system composed of two rotating shafts, which not only cushions the impact of movement, but also improves the smoothness and directional control ability of the self-priming rod movement.

[0043] The present application significantly improves the flexibility and response efficiency of the mechanism movement by setting a self-priming auxiliary rod 33 between the sector gear 32 and the self-priming rod 4 and adopting a double-axis hinged connection. On the one hand, the auxiliary rod realizes an angle-adjustable non-rigid motion connection through a double-point hinge, which effectively alleviates the thrust offset and structural interference problems caused by angle changes during the gear driving process, so that the self-priming rod 4 can obtain a stable and precise motion path at any position; on the other hand, the structure has good motion continuity and dynamic adaptability, and can maintain high transmission efficiency and low resistance under different working conditions, avoiding jamming or slow response caused by excessive structural rigidity. In addition, the design also has good structural adaptability and can be flexibly arranged in the limited space inside the car door lock. It does not rely on traditional rigid linkage or linear guide rails, greatly improving the integrability, motion reliability and adaptability of the car door lock with self-priming, electric opening and self-priming interruption functions, providing important support for the realization of small-sized, high-performance smart door locks.

[0044] As a preferred example of the present application, the ratchet 6 includes a ratchet body 61, which can rotate around a first rotating shaft 64. A first limiting groove 62 that cooperates with the lock buckle 7 is provided on one side of the ratchet body 61, and a first boss 63 that cooperates with the self-priming rod 4 is provided on the other side. In the example of the present application, the ratchet 6 adopts a central winding structure, including a ratchet body 61 that can rotate around a first rotating shaft 64. The functional areas on both sides of the ratchet body 61 structure are clearly divided, and one side is provided with a first limiting groove 62 for precise engagement with the lock buckle 7. The limiting groove is designed according to the position and shape characteristics of the lock buckle 7 during the door closing process, and can achieve stable engagement when rotated into place to ensure locking safety; the other side is provided with a first boss 63 for receiving the driving force of the self-priming rod 4. The size and angle of the boss match the self-priming rod 4, so that when the self-priming rod 4 applies force, it can stably push the ratchet 6 to rotate without slipping and offset. The overall size of the ratchet structure is compact, the layout is reasonable, and the movement path is clear. It is suitable for the limited installation space inside the car door top and bottom lock, and can realize mechanical linkage and response control during self-priming closing and interruption.

[0045] In the example of the present application, a torsion spring for driving the corresponding hinged structure to reset is also provided at the second rotating shaft 321 , the third rotating shaft 331 , and the fourth rotating shaft 53 . The present application arranges corresponding torsion springs at the positions of the second rotating shaft 321, the third rotating shaft 331 and the fourth rotating shaft 53 respectively. Each torsion spring cooperates with the hinged structure of the self-priming auxiliary rod 33, the self-priming rod 4 and the release rod 52 to provide a reset force after the respective components complete the action. This design idea is based on the operating requirements of the compact internal space and frequent mechanism actions of the automobile door skylight lock. By configuring an independent elastic reset component at each key rotation point, the components have the ability to automatically return to their original position, thereby achieving precise mechanical reset without the aid of external additional control signals or structural intervention. The entire reset scheme has a simple structure, fast response and high reliability, and has significant advantages in space utilization, assembly convenience and long-term use stability. In addition, the selection of torsion springs at each rotating shaft can adjust the torque according to the motion load of the corresponding component to ensure that different mechanisms have reasonable reset speeds and anti-interference capabilities on their respective action paths, thereby achieving dynamic collaborative optimization of the entire automobile door skylight lock system.

[0046] The automobile door lock disclosed in the present application has the functions of self-priming, electric opening and self-priming interruption. By compactly integrating the driving device 2, the self-priming component 9, the interruption component 5, the ratchet structure and the pawl mechanism into a shell with a main body height not exceeding 60 mm and a main body thickness not exceeding 40 mm, the triple function coordinated control of automatic closing, emergency interruption and electric opening of the door locking process is realized in a limited installation space. The self-priming component 9 is composed of a driving device 2, a two-stage gear meshing transmission structure 3 and a self-priming rod 4 that can slide along a set trajectory, ensuring that the power response of the closing process is fast, the path is clear and the self-priming accuracy is high. At the same time, by setting the self-priming auxiliary rod 33, flexible power guidance is achieved to avoid motion blockage and improve the smoothness of the system operation. It can output a force of up to 800N while ensuring motion accuracy. The interruption component 5 is designed with an integrated release rod having an angle structure between a limiting portion 521 and a rotating portion 522. Under the action of the braking device, the self-priming rod 4 can be accurately and quickly disengaged from the ratchet 6 to terminate the suction process, and a composite control node for the interruption and electric opening functions can be formed through the limit shaft 42. Under the electric opening condition, the limit shaft 42 further links the pawl mechanism to rotate synchronously to release the ratchet 6 limit, so that the ratchet 6 is automatically reset under the action of the torsion spring elastic force to achieve electric unlocking. The entire system uses multiple sets of independent torsion springs to realize the self-resetting action of each functional module at the key rotating shaft, avoiding additional drive consumption and control complexity. At the same time, the shell structure in this application can be flexibly selected into a long strip, V-shaped or arc shape according to the actual installation space, ensuring that the overall door lock structure is reasonably arranged, responds quickly, and operates reliably. It is significantly improved in terms of functional integrity, structural compactness, safety response capability, energy utilization efficiency and adaptability compared with traditional solutions, and is especially suitable for smart car door floor lock system scenarios with high requirements on space utilization, safety control and response speed.

[0047] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A car door lock with self-priming, electric opening and self-priming interruption functions, characterized in that: include: The housing (1) is in the shape of an elongated strip, an arc or a V-shape, and is used to accommodate the mounting of the ratchet (6), the self-priming component (9) and the interruption component (5); The ratchet (6) is rotatable about a first rotating shaft (64) provided thereon and cooperates with the lock catch (7) to lock or release the vehicle door; A self-priming assembly (9) comprises a driving device (2), a transmission structure (3) and a self-priming rod (4), wherein the driving device (2) drives the self-priming rod (4) via the transmission structure (3) to move along a preset path toward or away from the ratchet (6), thereby driving the ratchet (6) to rotate to achieve suction and locking of the vehicle door; An interruption assembly (5) comprising a braking device and a release rod (52), wherein the release rod (52) is capable of driving the self-priming rod (4) to move away from the ratchet wheel (6) under the driving force of the braking device, thereby interrupting the self-priming action; A ratchet (8) is rotatably disposed in the housing (1) and is linked to the self-priming rod (4). When the self-priming rod (4) moves away from the ratchet (6), the ratchet (8) synchronously moves in a direction away from the ratchet (6) to release the limiting constraint on the ratchet (6), so that the ratchet (6) automatically resets under the action of the torsion spring on the first rotating shaft (64), thereby realizing the electric opening of the vehicle door.

2. The car door lock with self-priming, electric opening and self-priming interruption functions according to claim 1, characterized in that: The housing (1) comprises a base plate (101), the base plate (101) has a length of L, a height of H, a value range of L:H of 1.6 to 5.6, and H is less than 60 mm.

3. The car door top and bottom lock with self-priming, electric opening and self-priming interruption functions according to claim 1 is characterized in that: The release lever (52) comprises a limiting portion (521) and a rotating portion (522) arranged in an angled manner. The rotating portion (522) is hinged and rotated relative to the base plate (101) via a fourth rotating shaft (53). The limiting portion (521) rotates integrally with the rotating portion (522) and is used to drive the self-priming lever (4) to disengage in a direction away from the ratchet (6) when the rotating portion (522) rotates.

4. The car door top and bottom lock with self-priming, electric opening and self-priming interruption functions according to claim 3 is characterized in that: An outwardly convex connecting portion (523) is formed at the angle connecting the limiting portion (521) and the rotating portion (522), a connecting shaft (524) is provided on the connecting portion (523), and the braking device is connected to the connecting shaft (524) by pulling through a pull rope (51).

5. The car door lock with self-priming, electric opening and self-priming interruption functions according to claim 4, characterized in that: The fourth rotating shaft (53) is arranged on an end of the rotating portion (522) away from the connecting portion (523) and is arranged close to the edge of the base plate (101). The fourth rotating shaft (53) is arranged on the pawl (8).

6. The automobile door top and bottom lock with self-priming, electric opening and self-priming interruption functions according to claim 4 or 5, characterized in that: The self-priming rod (4) comprises a rod body (41), a limiting shaft (42) is provided on the rod body (41), the limiting portion (521) abuts against the limiting shaft (42) during the self-priming interruption process and drives the self-priming rod (4) to move toward a side away from the ratchet (6), and the limiting shaft (42) drives the ratchet (8) to rotate toward a side away from the ratchet (6) during the electric opening process.

7. The automobile door top and bottom lock with self-priming, electric opening and self-priming interruption functions according to claim 1, characterized in that: The transmission structure (3) comprises a transmission gear (31) and a sector gear (32), wherein the sector gear (32) meshes with the transmission gear (31) and rotates. The transmission gear (31) can be driven to rotate by the driving device (2) and drives the self-priming rod (4) to move toward or away from the ratchet (6) through the sector gear (32).

8. The automobile door lock with self-priming, electric opening and self-priming interruption functions according to claim 7, characterized in that: The transmission gear (31) comprises a double-layer first gear portion (311) and a second gear portion (312), wherein the first gear portion (311) and the second gear portion (312) are respectively meshed with the driving device (2) and the sector gear (32) for transmission.

9. The automobile door top and bottom lock with self-priming, electric opening and self-priming interruption functions according to claim 8, characterized in that: A self-priming auxiliary rod (33) is provided on the sector gear (32). The self-priming auxiliary rod (33) is hingedly connected to the sector gear (32) via a second rotating shaft (321) and is hingedly connected to the self-priming rod (4) via a third rotating shaft (331), and is used to drive the self-priming rod (4) to move as the sector gear (32) rotates.

10. The automobile door top and bottom lock with self-priming, electric opening and self-priming interruption functions according to claim 1, characterized in that: The ratchet (6) comprises a ratchet body (61) which is capable of rotating about a first rotating shaft (64). A first limiting groove (62) cooperating with the lock catch (7) is provided on one side of the ratchet body (61), and a first boss (63) cooperating with the self-priming rod (4) is provided on the other side.

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