Automobile door lock structure and automobile

Abstract

The utility model belongs to the technical field of automobiles, and discloses an automobile door lock structure and an automobile, the automobile door lock structure comprises a locking assembly, a sector gear, a driving assembly, a linkage mechanism and a manual unlocking mechanism, the locking assembly comprises a ratchet wheel and a pawl, and the ratchet wheel and the pawl are selectively attracted; the driving assembly is connected with the sector gear; the linkage mechanism comprises a suction connecting rod, an unlocking rod and a transmission pin, and the sector gear and the suction connecting rod selectively and synchronously rotate through the transmission pin; and the manual unlocking mechanism is connected with the transmission pin. Thus, under the action of the driving piece, the ratchet wheel and the pawl are selectively meshed, the vehicle door can be automatically switched to the locking state in the semi-locking state, the transmission pin is driven to move through the manual unlocking mechanism, and the sector gear and the suction connecting rod are selectively and synchronously rotated; when the driving assembly is abnormal, the pull-in connecting rod can rotate independently to unlock the vehicle door, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, in particular to an automobile door lock structure and an automobile. Background Art

[0002] A car is a common means of transportation used to carry people and / or goods. As an important part of a car, a car door lock can control the opening and locking of the car door.

[0003] With the development of the automobile industry, passengers have increasing requirements for the safety performance of automobiles, including the sensitivity and safety of automobile door locks. Automobile door locks include a locking mechanism and a driving component that controls the locking or unlocking of the locking mechanism. Under the action of the driving component, the locking mechanism can limit the door after being locked to prevent the door from being opened accidentally.

[0004] However, when the car door is subjected to a small force, the locking mechanism is likely to be only in a half-locked state. In order to completely lock the car door, a greater force is needed to close the door. And after the car door is locked, when the driving component fails, the locking mechanism cannot be driven to the unlocked state by the driving component, making the car door unable to be opened, posing a major safety hazard. Utility Model Content

[0005] The utility model aims to provide a car door lock structure and a car, which can automatically lock the car door when it is half-locked by making the ratchet and the pawl attract under the action of a driving component, thereby reducing the force required to lock the car door, and when the driving component is abnormal, the manual unlocking mechanism drives the transmission pin to move, so that the attraction connecting rod can rotate independently, thereby realizing unlocking of the car door and improving safety performance.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] In a first aspect, a vehicle door lock structure comprises:

[0008] A locking assembly, the locking assembly comprising a ratchet and a pawl, the ratchet and the pawl being selectively engageable;

[0009] Sector teeth and a driving assembly, wherein the driving assembly is connected to the sector teeth and is used to drive the sector teeth to rotate;

[0010] A linkage mechanism, the linkage mechanism comprising an engaging link for driving the ratchet wheel to rotate, an unlocking lever and a transmission pin for driving the pawl to rotate, and the sector teeth and the engaging link can selectively rotate synchronously through the transmission pin;

[0011] A manual unlocking mechanism is connected to the transmission pin and is used to selectively release the synchronous rotation of the sector teeth and the suction connecting rod.

[0012] Preferably, the unlocking rod is connected to a connecting block, and the fan teeth can be selectively connected to the connecting block, so that when the fan teeth rotate to push the connecting block to drive the unlocking rod to rotate, the end of the unlocking rod away from the connecting block pushes the pawl to rotate.

[0013] Preferably, the manual unlocking mechanism comprises an emergency opening rod and a connecting rod, one end of the connecting rod is transmission-connected to the emergency opening rod, and the other end of the connecting rod is transmission-connected to the transmission pin;

[0014] The sector teeth are provided with a first meshing groove, the suction connecting rod is provided with a second meshing groove, and the connecting rod is used to drive the transmission pin to selectively move into the first meshing groove and the second meshing groove, so that the sector teeth and the suction connecting rod can selectively mesh and rotate synchronously.

[0015] Preferably, the suction link is connected to a reset spring, which is used to reset the suction link to an initial position after the sector teeth and the suction link are released from synchronous rotation;

[0016] The unlocking rod is connected to an unlocking spring, one end of which is connected to the connecting rod, and is used to provide a force to the transmission pin so that the transmission pin is located in the first engagement groove and the second engagement groove.

[0017] Preferably, the linkage mechanism also includes a second rivet, and the emergency opening rod, the unlocking rod and the unlocking spring are all mounted on the second rivet. One end of the unlocking spring abuts against the connecting rod, and the other end is fixedly connected to the unlocking rod, so as to provide a force to the transmission pin through the connecting rod.

[0018] Preferably, the automobile door lock structure also includes a position detection component, which can selectively abut against the fan tooth to determine whether the fan tooth is in an initial position. The position detection component is connected to a controller, and the controller is connected to the drive assembly to control the drive assembly to drive the fan tooth to rotate according to the position of the fan tooth.

[0019] Preferably, the manual unlocking mechanism further comprises a limit member, wherein the limit member and the position detecting member are arranged on the same side of the fan teeth, and is used to limit the movement of the suction link when the suction link rotates to the initial position under the action of the reset spring.

[0020] Preferably, the position detection component is a reset switch, which includes a retractable probe connected to the controller, and the sector teeth are connected to a positioning block, which can selectively abut against the probe.

[0021] Preferably, the driving assembly comprises a driving member, a worm and a bevel gear, wherein the driving member is connected to the worm for driving the worm to rotate, and the bevel gear is respectively engaged with the worm and the sector teeth for rotating the sector teeth.

[0022] In a second aspect, a car comprises a body, a door and the car door lock structure as described above, wherein the car door lock structure is respectively connected to the body and the door for locking or unlocking the door.

[0023] Beneficial effects of the utility model:

[0024] A car door lock structure comprises: a locking assembly, the locking assembly comprises a ratchet and a pawl, the ratchet and the pawl can be selectively attracted; a fan tooth and a driving assembly, the driving assembly is connected to the fan tooth and is used to drive the fan tooth to rotate; a linkage mechanism, the linkage mechanism comprises an attraction connecting rod for driving the ratchet to rotate, an unlocking rod and a transmission pin for driving the pawl to rotate, the fan tooth and the attraction connecting rod can be selectively rotated synchronously through the transmission pin; a manual unlocking mechanism, the manual unlocking mechanism is connected to the transmission pin and is used to selectively release the synchronous rotation of the fan tooth and the attraction connecting rod.

[0025] In this way, when the car door needs to be locked, the operator pushes it to the semi-locked state. Under the action of the driving assembly, the fan teeth rotate and drive the suction link to rotate, thereby realizing the suction of the ratchet and the pawl, thereby locking the car door and reducing the force required to close the door. When the driving assembly malfunctions and the fan teeth cannot rotate normally, the manual unlocking mechanism can move the transmission pin to the suction link to release the synchronous rotation with the fan teeth, so that the suction link drives the ratchet to rotate, thereby realizing normal unlocking of the car door and improving safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a car door lock structure in one embodiment of the utility model;

[0027] Figure 2 It is a bottom view of an embodiment of the utility model intended to show the lock buckle;

[0028] Figure 3 It is a structural schematic diagram of the automobile door lock structure from another angle in one embodiment of the utility model;

[0029] Figure 4 It is an exploded view of an embodiment of the utility model for showing the linkage mechanism and the manual unlocking mechanism;

[0030] Figure 5 It is a structural schematic diagram of the automobile door lock structure in the locking process in one embodiment of the utility model;

[0031] Figure 6 It is a structural schematic diagram of the automobile door lock structure in the unlocking process in one embodiment of the utility model;

[0032] Figure 7 It is a structural schematic diagram of a vehicle door lock structure in a manual unlocking process in one embodiment of the utility model.

[0033] In the figure:

[0034] 1. Locking assembly; 11. Ratchet; 111. Locking groove; 12. Pawl; 13. Lock buckle; 2. Fan teeth; 21. First rivet; 22. First sliding groove; 23. First meshing groove; 24. Positioning block; 25. Toggle rod; 3. Driving assembly; 31. Driving member; 32. Worm; 33. Bevel gear; 4. Linking mechanism; 41. Suction connecting rod; 411. Second sliding groove; 412. Second meshing groove; 413. First control part; 414. Reset spring; 42. Unlocking rod; 421. Second control part; 422. Connecting block; 423. Unlocking spring; 43. Transmission pin; 44. Second rivet; 5. Manual unlocking mechanism; 51. Emergency opening rod; 511. Unlocking groove; 52. Connecting rod; 53. Limiting member; 6. Position detection member; 61. Probe. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0036] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0039] See also Figure 1 The utility model provides a car door lock structure, which is arranged on a car door (not shown in the figure), and includes a locking assembly 1, a sector tooth 2, a driving assembly 3, a linkage mechanism 4 and a manual unlocking mechanism 5. The locking assembly 1 includes a ratchet 11 and a pawl 12, and the ratchet 11 and the pawl 12 can be selectively attracted.

[0040] Among them, see Figure 2 The ratchet 11 and the pawl 12 are both connected to the vehicle door, the vehicle body is provided with a lock catch 13, and the ratchet 11 is provided with a locking groove 111. When the ratchet 11 is in the unlocking position, the lock catch 13 of the vehicle door is located outside the locking groove 111, and the vehicle door is in the unlocking state; when the ratchet 11 rotates until the lock catch 13 enters the locking groove 111, the vehicle door is in a semi-locked state; when the ratchet 11 continues to rotate until the lock catch 13 abuts against the inner wall of the locking groove 111, the vehicle door is in the locked state; the ratchet 11 is provided with a plurality of protrusions on one side facing the pawl 12, so that the pawl 12 can mesh with the ratchet 11 when the vehicle door is in different states; the ratchet 11 is connected with a spring, so that the ratchet 11 can rotate to the unlocking position when the pawl 12 and the ratchet 11 are released from the attraction.

[0041] The driving assembly 3 is connected to the fan tooth 2 and is used to drive the fan tooth 2 to rotate; the linkage mechanism 4 includes an attraction link 41 for driving the ratchet 11 to rotate, an unlocking rod 42 and a transmission pin 43 for driving the pawl 12 to rotate, and the fan tooth 2 and the attraction link 41 can selectively rotate synchronously through the transmission pin 43; the manual unlocking mechanism 5 is connected to the transmission pin 43 and is used to selectively release the synchronous rotation of the fan tooth 2 and the attraction link 41.

[0042] Furthermore, the fan tooth 2 is connected to a first rivet 21, and the fan tooth 2 and the suction link 41 are both mounted on the first rivet 21, and the fan tooth 2 and the suction link 41 are respectively rotatably connected to the first rivet 21, and the end of the suction link 41 facing the ratchet 11 is fixedly connected to a first control portion 413 for pushing the ratchet 11 to rotate; the unlocking rod 42 is arranged on the side of the suction link 41 away from the fan tooth 2 and is rotatably connected to the suction link 41, and the end of the unlocking rod 42 facing the ratchet 12 is fixedly connected to a second control portion 421 for pushing the ratchet 12; the transmission pin 43 passes through the fan tooth 2 and the suction link 41 and is respectively rotatably connected to the fan tooth 2 and the suction link 41.

[0043] When the door is unlocked, the driving assembly 3 drives the sector tooth 2 to rotate in the opposite direction, driving the unlocking rod 42 to push the pawl 12 and the ratchet 11 to release the engagement, and the ratchet 11 is reset under the action of the spring to unlock the door; when the driving assembly 3 abnormally makes the sector tooth 2 unable to rotate, the manual unlocking mechanism 5 drives the driving pin 43 to move, releases the synchronous rotation of the sector tooth 2 and the engagement link 41, and enables the engagement link 41 to rotate alone and push the ratchet 11, so that the ratchet 11 and the ratchet 12 are released, so that the door can be unlocked even under abnormal conditions, thereby improving safety.

[0044] See also Figure 3 In some embodiments, the unlocking rod 42 is connected to a connecting block 422, and the fan tooth 2 can be selectively connected to the connecting block 422, so that when the fan tooth 2 rotates to push the connecting block 422 to drive the unlocking rod 42 to rotate, the end of the unlocking rod 42 away from the connecting block 422 pushes the pawl 12 to rotate.

[0045] Furthermore, the connecting block 422 is fixedly arranged on a side of the unlocking rod 42 facing the fan tooth 2 , and a toggle rod 25 is fixedly arranged on one end of the fan tooth 2 facing the unlocking rod 42 .

[0046] It should be noted that when the fan tooth 2 rotates clockwise, the toggle rod 25 moves away from the connecting block 422. At this time, the fan tooth 2 is disconnected from the unlocking rod 42. When the fan tooth 2 rotates counterclockwise, the toggle rod 25 abuts against the connecting block 422 and drives the unlocking rod 42 to rotate, so that the unlocking rod 42 can drive the pawl 12 to rotate, thereby releasing the engagement between the pawl 12 and the ratchet 11.

[0047] In this way, by setting the connecting block 422, when the vehicle door needs to be unlocked, the fan tooth 2 can be connected to the unlocking rod 42 in transmission, so that the pawl 12 and the ratchet 11 are released from the engagement; when the vehicle door needs to be locked, the unlocking rod 42 is released from the fan tooth 2, so that the unlocking rod 42 is not easy to interfere with the engagement of the ratchet 11 and the pawl 12, thereby realizing flexible adjustment of the locking state of the vehicle door.

[0048] It is understandable that the setting positions of the connecting block 422 and the toggle rod 25 can be adjusted according to actual needs so as to achieve the selective transmission connection between the sector teeth 2 and the unlocking rod 42.

[0049] See also Figure 4 In some embodiments, the manual unlocking mechanism 5 includes an emergency opening rod 51 and a connecting rod 52 , one end of the connecting rod 52 is transmission-connected to the emergency opening rod 51 , and the other end of the connecting rod 52 is transmission-connected to the transmission pin 43 .

[0050] In this embodiment, the connecting rod 52 is arranged on the side of the suction link 41 away from the fan tooth 2, and the emergency opening rod 51 is arranged on the side of the connecting rod 52 away from the suction link 41. An unlocking groove 511 is provided at one end of the emergency opening rod 51, one end of the connecting rod 52 passes through the unlocking groove 511 and is hinged to the emergency opening rod 51, and the other end is sleeved on the end of the transmission pin 43 away from the suction link 41.

[0051] It should be noted that when the driving assembly 3 works normally, the relative position of the emergency opening rod 51 and the base plate on which the automobile door lock structure is installed remains unchanged. When an abnormality occurs in the driving assembly 3, the emergency opening rod 51 can move up and down, and drive the connecting rod 52 and the transmission pin 43 to move, so that the transmission pin 43 moves to release the synchronous rotation of the fan teeth 2 and the suction connecting rod 41.

[0052] In this way, when the fan tooth 2 cannot be driven by the driving component 3, the emergency opening rod 51 is moved so that the suction connecting rod 41 can be separated from the fan tooth 2 and rotate independently, so that the toggle rod 25 to toggle the connecting block 422, so that the unlocking rod 42 pushes the pawl 12 and the ratchet 11 to release the suction, so as to achieve the effect of being able to unlock the car door when the driving component 3 is abnormal, so that the occupants can leave the car in time, and it is convenient for maintenance personnel to repair the driving component 3, thereby improving the safety of the car door lock.

[0053] Further, see Figure 4 A first meshing groove 23 is provided on the fan tooth 2, and a second meshing groove 412 is provided on the suction link 41. The connecting rod 52 is used to drive the transmission pin 43 to selectively move into the first meshing groove 23 and the second meshing groove 412, so that the fan tooth 2 and the suction link 41 can selectively mesh and rotate synchronously.

[0054] Among them, the first meshing groove 23 is arc-shaped, and the length direction of the first meshing groove 23 is parallel to the rotation direction of the fan tooth 2. A circular first sliding groove 22 is also provided on the fan tooth 2, and the first sliding groove 22 is located below the first meshing groove 23. The first sliding groove 22 is connected to the end of the first meshing groove 23 that is away from the gear tooth on the fan tooth 2; an arc-shaped second sliding groove 411 is also provided on the suction link 41, and the length direction of the second sliding groove 411 is parallel to the rotation direction of the suction link 41, and the second meshing groove 412 is a circular groove, and the second meshing groove 412 is connected to the second sliding groove 411, and the second meshing groove 412 is located above the second sliding groove 411.

[0055] It should be noted that when the emergency opening rod 51 drives the connecting rod 52 and the transmission pin 43 to move, the transmission pin 43 moves from the second engagement groove 412 to the second sliding groove 411. At this time, the suction connecting rod 41 can rotate freely when the fan teeth 2 cannot rotate, so that the car door can be unlocked normally when the driving assembly 3 is abnormal.

[0056] It is understandable that the length and width of the first meshing groove 23 and the second meshing groove 412 can be adjusted according to the diameter of the driving pin 43, and no further details are given here.

[0057] In this way, by manually moving the emergency opening rod 51, the transmission pin 43 can be disengaged from the second engagement groove 412, and the suction connecting rod 41 can be rotated independently, so that the door can be opened normally when the sector tooth 2 is stuck, thereby improving the safety performance.

[0058] See also Figure 4 In some embodiments, the suction link 41 is connected to a reset spring 414, which is used to reset the suction link 41 to the initial position after the synchronous rotation of the sector teeth 2 and the suction link 41 is released. The unlocking lever 42 is connected to an unlocking spring 423, one end of which is connected to the connecting rod 52, and is used to provide a force to the transmission pin 43, so that the transmission pin 43 is located in the first meshing groove 23 and the second meshing groove 412.

[0059] Among them, the return spring 414 is a torsion spring, and the return spring 414 is sleeved on the first rivet 21. The return spring 414 extends outward with two ends, one end is clamped with the suction link 41, and the other end is fixedly connected to the base plate (not shown in the figure) for mounting the automobile door lock structure, so that the suction link 41 and the fan tooth 2 can stop rotating synchronously. Under the action of the return spring 414, the suction link 41 can be reset to the initial position, so that the first control part 413 is disengaged from the ratchet 11, and the ratchet 11 is reset under the elastic force generated by the spring connected thereto and the sealing return force of the car door.

[0060] Furthermore, the unlocking spring 423 is a torsion spring, and the unlocking spring 423 extends two ends, one end of which abuts against one end of the connecting rod 52 extending out of the emergency opening rod 51, and the other end is fixedly connected to the unlocking rod 42. When the connecting rod 52 is driven by the emergency opening rod 51 to move downward, the transmission pin 43 disengages from the first engaging groove 23 and the second engaging groove 412, and the unlocking rod 42 rotates at the same time.

[0061] In this way, by providing the return spring 414 and the unlocking spring 423, the door can be unlocked through mechanical transmission when an abnormality occurs in the driving assembly 3, thereby avoiding the situation where the door cannot be opened when an abnormality occurs in the vehicle circuit, thereby improving safety.

[0062] See also Figure 4 In some embodiments, the linkage mechanism 4 further includes a second rivet 44, the emergency opening rod 51, the unlocking rod 42 and the unlocking spring 423 are all sleeved on the second rivet 44, one end of the unlocking spring 423 abuts against the connecting rod 52, and the other end is fixedly connected to the unlocking rod 42, and is used to provide a force to the transmission pin 43 through the connecting rod 52. The unlocking spring 423 is clamped with the second rivet 44.

[0063] It should be noted that, under normal conditions, the unlocking spring 423 continuously applies upward pressure to one end of the connecting rod 52 toward the emergency opening rod 51, so that the connecting rod 52 is always hinged with the emergency opening rod 51, the relative position of the emergency opening rod 51 and the substrate for mounting the vehicle door lock structure remains unchanged, and the transmission pin 43 is always located in the first meshing groove 23 and the second meshing groove 412, thereby driving the synchronous rotation of the fan teeth 2 and the suction connecting rod 41. When the emergency opening rod 51 drives the connecting rod 52 to move downward, the unlocking spring 423 drives the unlocking rod 42 to rotate, thereby pushing the pawl 12 to rotate until it is disconnected from the ratchet wheel 11, thereby unlocking the vehicle door.

[0064] It can be understood that after the driving assembly 3 returns to normal, the emergency opening rod 51 is released, and the unlocking spring 423 drives the connecting rod 52 to reset, so that the connecting rod 52 drives the transmission pin 43 to slide again into the first meshing groove 23 and the second meshing groove 412, so that the fan teeth 2 and the suction link 41 resume synchronous rotation. The fan teeth 2 and the suction link 41 can be rotated synchronously or separately only through the emergency opening rod 51, thereby improving maintenance efficiency.

[0065] In this way, the second rivet 44 can connect the emergency opening rod 51, the unlocking rod 42 and the unlocking spring 423, so that the unlocking rod 42 can be stably connected to the connecting rod 52, thereby adjusting the position of the transmission pin 43 as needed, facilitating accurate locking and unlocking of the vehicle door, and improving the stability and safety of the vehicle door lock structure.

[0066] See also Figure 3In some embodiments, the automobile door lock structure further includes a position detection member 6, which can selectively abut against the sector tooth 2 to determine whether the sector tooth 2 is in the initial position. The position detection member 6 is connected to a controller (not shown in the figure), which is connected to the driving assembly 3 to control the driving assembly 3 to drive the sector tooth 2 to rotate according to the position of the sector tooth 2. The position detection member 6 is fixedly connected to the substrate on which the automobile door lock structure is installed.

[0067] It should be noted that the initial position of the fan tooth 2 is the position when the door is unlocked, that is, the position of the fan tooth 2 when it abuts against the position monitoring component. When the fan tooth 2 abuts against the position detection component 6, the position detection component 6 sends a signal to the controller to indicate that the fan tooth 2 is in a position where it can be driven. After the controller receives the signal from the position detection component 6, the controller sends a signal to the drive component 3, which enables the drive component 3 to drive the fan tooth 2 to rotate.

[0068] In this way, under the action of the position detection part 6, it is possible to determine whether the fan tooth 2 is in the initial state and whether it has the conditions for rotation, thereby facilitating the driving component 3 to drive the fan tooth 2 as needed, and when the abnormal driving component 3 returns to normal, it is possible to determine whether the fan tooth 2 is normally reset based on the signal feedback from the position detection part 6.

[0069] See also Figure 3 and Figure 4 In some embodiments, the manual unlocking mechanism 5 also includes a limit member 53, which is arranged on the same side of the fan tooth 2 as the position detection member 6, and is used to limit the movement of the suction link 41 when the suction link 41 rotates to the initial position under the action of the reset spring 414.

[0070] In this embodiment, the limiting member 53 is a retaining spring, which has two ends extending outward, one end of which is fixedly connected to the base plate for mounting the automobile door lock structure, and the other end faces the suction connecting rod 41.

[0071] It should be noted that the suction link 41 rotates under the force of the return spring 414. When the suction link 41 rotates to the side wall and abuts against the retaining spring, the force of the retaining spring and the force of the return spring 414 offset each other, so that the suction link 41 is in a stationary state.

[0072] In this way, when the fan tooth 2 cannot rotate normally, the retaining spring can limit the position of the suction link 41, so that it pushes the unlocking rod 42 to rotate to the desired position, and prevents the suction link 41 from excessively rotating under the action of the reset spring 414, thereby causing damage to surrounding parts.

[0073] It is understandable that the limit member 53 can also be a structure made of other elastic materials, such as a block structure made of rubber, which can offset the force of the reset spring 414 and limit the further rotation of the suction link 41. The specific structure and material of the limit member 53 can be adjusted according to actual needs and will not be listed in detail here.

[0074] See also Figure 3 In some embodiments, the position detection member 6 is a reset switch, which includes a retractable probe 61, which is connected to the controller, and the sector tooth 2 is connected to a positioning block 24, which can selectively abut against the probe 61. The positioning block 24 is a wedge-shaped block structure, which is fixedly arranged on the side of the sector tooth 2 facing the position detection member 6, and the tip of the positioning block 24 faces the position detection member 6.

[0075] It should be noted that during the rotation of the fan teeth 2, both sides of the tip of the positioning block 24 may abut against the probe 61. Setting the probe 61 of the reset switch as a retractable probe 61 can reduce the interference with the rotation of the fan teeth 2, while ensuring that when the fan teeth 2 rotate to the initial position, the probe 61 transmits a signal to the controller in a timely manner.

[0076] In this way, when the sector tooth 2 rotates to abut against the probe 61, the probe 61 sends a signal to the controller, so that the driving component 3 can drive the sector tooth 2 to rotate forward or reverse according to the controller signal, thereby locking or unlocking the door.

[0077] See also Figure 3 In some embodiments, the driving assembly 3 includes a driving member 31, a worm 32 and a bevel gear 33. The driving member 31 is connected to the worm 32 for driving the worm 32 to rotate. The bevel gear 33 is respectively engaged with the worm 32 and the fan tooth 2 for rotating the fan tooth 2.

[0078] In this embodiment, the driving member 31 is a motor, which is fixedly mounted on a substrate on which the automobile door lock structure is installed. The worm 32 is coaxially fixedly connected to the output end of the motor. The bevel gear 33 is arranged below the worm 32 and meshes with the worm 32. The side wall of the bevel gear 33 is provided with gear teeth, and the gear teeth on the bevel gear 33 mesh with the gear teeth on the fan teeth 2. The motor is connected to the controller to receive the control signal of the controller.

[0079] It can be understood that when the motor receives the control signal, it can drive the worm 32 to rotate forward or reverse, so that the bevel gear 33 drives the sector gear 2 to rotate forward or reverse.

[0080] In the present utility model, the working modes of the automobile door lock structure include an attraction mode, an unlocking mode and a manual unlocking mode after the attraction process stops unexpectedly, as follows.

[0081] 1. Suction mode.

[0082] See also Figure 2 and Figure 5 , the ratchet 11 and the pawl 12 are in the unlocked state, at which time the positioning block 24 abuts against the probe 61, and it can be determined that the sector tooth 2 is in the initial position. When the operator closes the door to the semi-locked position (i.e. the lock catch 13 slides into the locking groove 111), the driving member 31 is energized to make the worm 32 rotate forward, driving the sector tooth 2 to rotate clockwise (i.e. Figure 5 As the transmission pin 43 is located in the first meshing groove 23 and the second meshing groove 412 under the action of the unlocking spring 423, the fan tooth 2 drives the suction connecting rod 41 to rotate synchronously, so that the first control part 413 pushes the ratchet 11 to rotate, so that the lock buckle 13 and the ratchet 11 are engaged and locked, and the ratchet 11 and the pawl 12 are attracted to achieve the locking of the door.

[0083] After the door is locked, the driving member 31 is energized in the reverse direction, so that the fan tooth 2 drives the suction link 41 to rotate counterclockwise until the positioning block 24 abuts against the probe 61. The probe 61 transmits a position signal to the controller, so that the controller controls the driving member 31 to cut off the power, thereby completing the resetting of the fan tooth 2 and the suction link 41.

[0084] 2. Unlock mode.

[0085] See also Figure 2 and Figure 6 When the door is locked, the ratchet 11 and the pawl 12 are in the locked state. When the door needs to be unlocked, the driving member 31 is energized, so that the driving member 31 drives the bevel gear 33 to drive the sector gear 2 to rotate counterclockwise (i.e. Figure 6 The unlocking lever 42 is rotated by the toggle lever 25 on the fan tooth 2, so that the second control part 421 drives the pawl 12 to rotate, thereby releasing the engagement between the pawl 12 and the ratchet 11, and the ratchet 11 is reset under the action of the spring, so that the lock buckle 13 slides out of the locking groove 111, thereby unlocking the door.

[0086] After the car door is unlocked, the driving member 31 is energized in the reverse direction, so that the fan tooth 2 drives the suction link 41 to rotate clockwise until it abuts against the probe 61. The probe 61 sends a signal to the controller, so that the controller controls the driving member 31 to cut off the power. At the same time, due to the rotation of the suction link 41, the unlocking rod 42 is also reset to the initial position under the action of the unlocking spring 423.

[0087] 3. Manual unlocking mode after the pull-in process stops unexpectedly.

[0088] See also Figure 7In the process of the driving member 31 driving the ratchet 11 and the pawl 12 to engage, if the engagement stops due to external reasons (power supply disconnection, controller failure, etc.), the fan tooth 2 cannot be reset, and the engagement link 41 always remains in contact with the ratchet 11. By pushing the emergency opening rod 51 downward, it drives the connecting rod 52 and the transmission pin 43 to move downward, so that the transmission pin 43 disengages from the first engagement groove 23 and the second engagement groove 412. The engagement link 41 is acted upon by the reset spring 414 and moves in the direction close to the limit member 53. At this time, the transmission pin 43 slides in the second sliding groove 411, and the engagement link 41 moves until it abuts against the limit member 53, that is, returns to the initial position, and the engagement link 41 is disconnected from the ratchet 11.

[0089] At the same time, as the emergency opening rod 51 moves downward, the unlocking spring 423 transmits force to the unlocking rod 42, so that the unlocking rod 42 drives the pawl 12 to rotate, thereby releasing the engagement between the pawl 12 and the ratchet wheel 11, so that the door can be opened normally.

[0090] When the power is restored or the controller fault is eliminated, the driving member 31 is energized to rotate the fan tooth 2. After the positioning block 24 abuts against the probe 61, the controller controls the driving member 31 to cut off the power to stop the fan tooth 2 from rotating. At this time, the first meshing groove 23 coincides with the second meshing groove 412, and the connecting rod 52 pushes the transmission pin 43 upward under the action of the unlocking spring 423, so that the transmission pin 43 enters the first meshing groove 23 and the second meshing groove 412, thereby realizing the synchronous rotation of the fan tooth 2 and the suction connecting rod 41, and restoring the car door lock to its initial state.

[0091] The utility model also provides a car (not shown in the figure), comprising a car body (not shown in the figure), a car door (not shown in the figure) and a car door lock structure, wherein the car door lock structure is connected to the car body and the car door and is used to lock or unlock the car door.

[0092] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A car door lock structure, characterized in that: include: A locking assembly (1), the locking assembly (1) comprising a ratchet (11) and a pawl (12), the ratchet (11) and the pawl (12) being selectively engageable; A sector tooth (2) and a driving assembly (3), wherein the driving assembly (3) is connected to the sector tooth (2) and is used to drive the sector tooth (2) to rotate; A linkage mechanism (4), the linkage mechanism (4) comprising an engaging link (41) for driving the ratchet wheel (11) to rotate, an unlocking lever (42) and a transmission pin (43) for driving the ratchet pawl (12) to rotate, the sector teeth (2) and the engaging link (41) being selectively rotated synchronously via the transmission pin (43); A manual unlocking mechanism (5) is connected to the transmission pin (43) and is used to selectively release the synchronous rotation of the sector teeth (2) and the suction connecting rod (41).

2. The automobile door lock structure according to claim 1, characterized in that: The unlocking rod (42) is connected to a connecting block (422), and the fan tooth (2) can be selectively connected to the connecting block (422), so that when the fan tooth (2) rotates to push the connecting block (422) to drive the unlocking rod (42) to rotate, the end of the unlocking rod (42) away from the connecting block (422) pushes the pawl (12) to rotate.

3. The automobile door lock structure according to claim 1, characterized in that: The manual unlocking mechanism (5) comprises an emergency opening rod (51) and a connecting rod (52), one end of the connecting rod (52) being transmission-connected to the emergency opening rod (51), and the other end of the connecting rod (52) being transmission-connected to the transmission pin (43); The sector tooth (2) is provided with a first meshing groove (23), the suction connecting rod (41) is provided with a second meshing groove (412), and the connecting rod (52) is used to drive the transmission pin (43) to selectively move into the first meshing groove (23) and the second meshing groove (412), so that the sector tooth (2) and the suction connecting rod (41) can selectively mesh and rotate synchronously.

4. The automobile door lock structure according to claim 3, characterized in that: The suction connecting rod (41) is connected to a reset spring (414) for resetting the suction connecting rod (41) to an initial position after the synchronous rotation of the sector teeth (2) and the suction connecting rod (41) is released; The unlocking rod (42) is connected to an unlocking spring (423), one end of which is connected to the connecting rod (52) for providing a force to the transmission pin (43) so that the transmission pin (43) is located in the first engagement groove (23) and the second engagement groove (412).

5. The automobile door lock structure according to claim 4, characterized in that: The linkage mechanism (4) further comprises a second rivet (44), the emergency opening rod (51), the unlocking rod (42) and the unlocking spring (423) are all sleeved on the second rivet (44), one end of the unlocking spring (423) is in contact with the connecting rod (52), and the other end is fixedly connected to the unlocking rod (42), so as to provide a force to the transmission pin (43) through the connecting rod (52).

6. The automobile door lock structure according to claim 4, characterized in that: The automobile door lock structure further comprises a position detection member (6), wherein the position detection member (6) can selectively abut against the sector tooth (2) for determining whether the sector tooth (2) is located at an initial position, and the position detection member (6) is connected to a controller, wherein the controller is connected to the drive assembly (3) for controlling the drive assembly (3) to drive the sector tooth (2) to rotate according to the position of the sector tooth (2).

7. The automobile door lock structure according to claim 6, characterized in that: The manual unlocking mechanism (5) further comprises a limit member (53), wherein the limit member (53) and the position detecting member (6) are arranged on the same side of the sector tooth (2), and are used to limit the movement of the suction link (41) when the suction link (41) rotates to an initial position under the action of the reset spring (414).

8. The automobile door lock structure according to claim 6, characterized in that: The position detection member (6) is a reset switch, which comprises a retractable probe (61). The probe (61) is connected to the controller. The sector teeth (2) are connected to a positioning block (24). The positioning block (24) can selectively abut against the probe (61).

9. The automobile door lock structure according to any one of claims 1 to 5, characterized in that: The driving assembly (3) comprises a driving member (31), a worm (32) and a bevel gear (33); the driving member (31) is connected to the worm (32) and is used to drive the worm (32) to rotate; the bevel gear (33) is respectively meshed with the worm (32) and the sector teeth (2) and is used to rotate the sector teeth (2).

10. An automobile, characterized in that: It comprises a vehicle body, a vehicle door and a vehicle door lock structure as described in any one of claims 1 to 9, wherein the vehicle door lock structure is connected to the vehicle body and the vehicle door and is used to lock or unlock the vehicle door.

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