Automobile door lock structure and automobile

Abstract

An automobile door lock structure and an automobile. The automobile door lock structure comprises a locking assembly (1), a sector gear (2), a driving assembly (3), a linkage mechanism (4) and a manual unlocking mechanism (5), wherein the locking assembly (1) comprises a ratchet wheel (11) and a pawl (12), and the ratchet wheel (11) and the pawl (12) are selectively engagable; the driving assembly (3) is connected to the sector gear (2); the linkage mechanism (4) comprises an engagement link (41), an unlocking rod (42) and a transmission pin (43), and the sector gear (2) and the engagement link (41) can be selectively and synchronously rotated by means of the transmission pin (43); and the manual unlocking mechanism (5) is connected to the transmission pin (43).

Description

Automobile door lock structure and automobile

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on April 2, 2024, with application number 202420667841.7, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of automobile technology, for example, to an automobile door lock structure and an automobile. Background Art

[0003] Car is a common means of transportation used to carry people and / or goods. Car door locks, as an important part of a car, can control the opening and locking of the car doors.

[0004] With the development of the automobile industry, passengers have increasing requirements for the safety performance of automobiles, including the need for 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 opening accidentally.

[0005] 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. Moreover, 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. Summary of the Invention

[0006] The present application provides a car door lock structure and a car, which can automatically lock the car door when it is half-locked by causing the ratchet and the pawl to be attracted 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, which can cause the attraction link to rotate independently, thereby achieving unlocking of the car door and improving safety performance.

[0007] In a first aspect, the present application provides a vehicle door lock structure, comprising:

[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 drive assembly, wherein the drive 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 to rotate, an unlocking lever and a transmission pin for driving the pawl to rotate, the sector teeth and the engaging link selectively rotating synchronously via 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] Optionally, 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] Optionally, the manual unlocking mechanism includes 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 is transmission-connected to the transmission pin;

[0014] A first engaging groove is provided on the sector tooth, and a second engaging groove is provided on the suction link. The connecting rod is used to drive the transmission pin to selectively move into the first engaging groove and the second engaging groove, so that the sector tooth and the suction link can selectively engage and rotate synchronously.

[0015] Optionally, the suction link is connected to a reset spring for resetting the suction link to an initial position after the sector teeth and the suction link stop rotating synchronously.

[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] Optionally, 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, for providing a force to the transmission pin through the connecting rod.

[0018] Optionally, the automobile door lock structure also includes a position detection component, which can selectively abut against the fan teeth to determine whether the fan teeth are 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 teeth to rotate according to the position of the fan teeth.

[0019] Optionally, the manual unlocking mechanism further includes a limit member, which is arranged on the same side of the fan teeth as the position detection member, 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] Optionally, the position detection component is a reset switch, which includes a retractable probe connected to the controller. The sector teeth are connected to a positioning block, which can selectively abut against the probe.

[0021] Optionally, the drive assembly includes a drive member, a worm and a bevel gear, wherein the drive member is connected to the worm and is used to drive the worm to rotate, and the bevel gear is respectively engaged with the worm and the sector teeth and is used to rotate the sector teeth.

[0022] In a second aspect, the present application provides a car comprising a body, a door and a car door lock structure as described in any one of claims 1 to 9, 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 this application:

[0024] A car door lock structure comprises: a locking assembly, the locking assembly including a ratchet and a pawl, the ratchet and the pawl being selectively engaged; a sector tooth and a drive assembly, the drive assembly being connected to the sector tooth for driving the sector tooth to rotate; a linkage mechanism, the linkage mechanism including an engagement link for driving the ratchet to rotate, an unlocking rod and a transmission pin for driving the pawl to rotate, the sector tooth and the engagement link being selectively rotated synchronously via the transmission pin; and a manual unlocking mechanism, the manual unlocking mechanism being connected to the transmission pin for selectively releasing the synchronous rotation of the sector tooth and the engagement link.

[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 component, the fan teeth rotate and drive the suction link to rotate, realizing the suction of the ratchet and pawl, thereby locking the car door and reducing the force required to close the car door; when the driving component has an abnormality and the fan teeth cannot rotate normally, the manual unlocking mechanism can move the transmission pin to the suction link and desynchronize the rotation of the fan teeth, so that the suction link drives the ratchet to rotate, realizing normal unlocking of the car door and improving safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG1 is a schematic structural diagram of a car door lock structure according to an embodiment of the present application;

[0027] FIG2 is a bottom view showing a lock buckle according to an embodiment of the present application;

[0028] FIG3 is a structural diagram of a car door lock structure from another angle according to an embodiment of the present application;

[0029] FIG4 is an exploded view showing a linkage mechanism and a manual unlocking mechanism in one embodiment of the present application;

[0030] FIG5 is a schematic structural diagram of a car door lock structure during a locking process according to an embodiment of the present application;

[0031] FIG6 is a structural diagram of a vehicle door lock structure during unlocking in one embodiment of the present application;

[0032] FIG7 is a structural diagram of a car door lock structure during manual unlocking in one embodiment of the present application.

[0033] In the figure: 1. Locking assembly; 11. Ratchet; 111. Locking groove; 12. Pawl; 13. Locking buckle; 2. Fan teeth; 21. First rivet; 22. First sliding groove; 23. First engaging groove; 24. Positioning block; 25. Toggle lever; 3. Driving assembly; 31. Driving member; 32. Worm; 33. Bevel gear; 4. Linking mechanism; 41. Suction connecting rod; 411. Second sliding groove; 412. Second engaging groove; 413. First control part; 414. Return 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 lever; 511. Unlocking groove; 52. Connecting rod; 53. Limiting member; 6. Position detection part; 61. Probe. DETAILED DESCRIPTION

[0034] The present application is described in detail below in conjunction with the accompanying drawings and embodiments. The specific embodiments described herein are used to explain the present application. For ease of description, the accompanying drawings only show portions related to the present application, not all structures.

[0035] In the description of this application, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0036] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Furthermore, the terms "first" and "second" are used solely for descriptive distinction and do not have any special meaning.

[0038] Referring to FIG1 , the present application provides a vehicle door lock structure, which is mounted on a vehicle door and includes a locking assembly 1, sector teeth 2, a drive assembly 3, a linkage mechanism 4, and a manual unlocking mechanism 5. The locking assembly 1 includes a ratchet 11 and a pawl 12, which can selectively engage.

[0039] 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 unlocked position, the lock catch 13 of the vehicle door is located outside the locking groove 111, and the vehicle door is in the unlocked 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 the side facing the pawl 12, which are used to enable the pawl 12 to engage with the ratchet 11 when the vehicle door is in different states; the ratchet 11 is connected to a spring, which is used to disengage the pawl 12 from the ratchet 11, and the ratchet 11 can be rotated to the unlocked position.

[0040] The drive 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 be selectively rotated 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.

[0041] In some embodiments, 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 suction link 41 is fixedly connected to the first control part 413 at one end facing the ratchet 11, 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 unlocking rod 42 is fixedly connected to the second control part 421 at one end facing the pawl 12, for pushing the pawl 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.

[0042] When the door is unlocked, the driving assembly 3 drives the sector gear 2 to rotate in the opposite direction, driving the unlocking rod 42 to push the pawl 12 and the ratchet 11 to be disengaged, and the ratchet 11 is reset under the action of the spring to unlock the door. When the driving assembly 3 abnormally causes the sector gear 2 to be unable to rotate, the manual unlocking mechanism 5 drives the driving pin 43 to move, releasing the synchronous rotation of the sector gear 2 and the attraction link 41, so that the attraction link 41 can rotate alone and push the ratchet 11, so that the ratchet 11 and the pawl 12 are disengaged, so that the door can be unlocked even under abnormal conditions, thereby improving safety.

[0043] Referring to Figure 3, in some embodiments, the unlocking rod 42 is connected to the 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.

[0044] In some embodiments, the connecting block 422 is fixedly provided on a side of the unlocking rod 42 facing the sector tooth 2 , and a toggle rod 25 is fixedly provided on an end of the sector tooth 2 facing the unlocking rod 42 .

[0045] 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.

[0046] In this way, by setting the connecting block 422, when the car door needs to be unlocked, the fan tooth 2 can be connected to the unlocking rod 42 in a transmission manner, so that the pawl 12 and the ratchet 11 are disengaged. When the car door needs to be locked, the unlocking rod 42 is disengaged 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 car door locking state.

[0047] The setting positions of the connecting block 422 and the toggle rod 25 can be adjusted according to actual needs, so that the sector teeth 2 and the unlocking rod 42 can be selectively connected in transmission.

[0048] 4 , in some embodiments, the manual unlocking mechanism 5 includes an emergency opening lever 51 and a connecting rod 52 . One end of the connecting rod 52 is transmission-connected to the emergency opening lever 51 , and the other end of the connecting rod 52 is transmission-connected to the transmission pin 43 .

[0049] In this embodiment, the connecting rod 52 is disposed on the side of the engaging link 41 facing away from the sector teeth 2, and the emergency opening lever 51 is disposed on the side of the connecting rod 52 facing away from the engaging link 41. An unlocking slot 511 is defined at one end of the emergency opening lever 51. One end of the connecting rod 52 passes through the unlocking slot 511 and is hingedly connected to the emergency opening lever 51. The other end of the connecting rod 52 is sleeved on the end of the transmission pin 43 facing away from the engaging link 41.

[0050] When the driving assembly 3 is working 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 the driving assembly 3 malfunctions, 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.

[0051] 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 attraction 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 attraction, so that the car door can still be unlocked when the driving component 3 has an abnormality, so that the people in the car 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.

[0052] In some embodiments, referring to FIG. 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.

[0053] 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. 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 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. The length direction of the second sliding groove 411 is parallel to the rotation direction of the suction link 41. The second meshing groove 412 is a circular groove. 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.

[0054] 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 tooth 2 cannot rotate, so that the car door can be unlocked normally when the driving component 3 is abnormal.

[0055] The length and width of the first engagement groove 23 and the second engagement groove 412 can be adjusted according to the diameter of the transmission pin 43 , which will not be detailed here.

[0056] 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 car door can be opened normally when the sector tooth 2 is stuck, thereby improving safety performance.

[0057] Referring to Figure 4 , in some embodiments, the pull-in link 41 is connected to a return spring 414 for returning the pull-in link 41 to its initial position after the synchronous rotation between the sector teeth 2 and the pull-in 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 , for applying force to the transmission pin 43 , causing it to be positioned within the first engagement slot 23 and the second engagement slot 412 .

[0058] 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 for installing the car door lock structure, so that the suction link 41 and the fan tooth 2 are released from synchronous rotation. 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 to it and the sealing return force of the car door.

[0059] In some embodiments, the unlocking spring 423 is a torsion spring, and the unlocking spring 423 extends two ends, one end 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.

[0060] 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 drive assembly 3, thereby avoiding the situation where the door cannot be opened when an abnormality occurs in the vehicle circuit, thereby improving safety.

[0061] Referring to FIG. 4 , in some embodiments, the linkage mechanism 4 further includes a second rivet 44 . The emergency opening lever 51 , the unlocking lever 42 , and the unlocking spring 423 are all sleeved on the second rivet 44 . The unlocking spring 423 abuts the connecting rod 52 at one end and is fixedly connected to the unlocking lever 42 at the other end, thereby applying a force to the transmission pin 43 via the connecting rod 52 . The unlocking spring 423 is engaged with the second rivet 44 .

[0062] Under normal conditions, the unlocking spring 423 continuously applies upward pressure to one end of the connecting rod 52 toward the emergency opening lever 51, maintaining the connecting rod 52 always hinged to the emergency opening lever 51 and the relative position of the emergency opening lever 51 to the base plate on which the vehicle door lock structure is mounted. This also keeps the transmission pin 43 always located within the first meshing groove 23 and the second meshing groove 412, thereby driving the synchronous rotation of the sector teeth 2 and the pull-in connecting rod 41. When the emergency opening lever 51 drives the connecting rod 52 downward, the unlocking spring 423 drives the unlocking lever 42 to rotate, thereby pushing the pawl 12 to rotate until it is disconnected from the ratchet wheel 11, thereby unlocking the vehicle door.

[0063] After the drive 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 connecting rod 41 resume synchronous rotation. The fan teeth 2 and the suction connecting rod 41 can be rotated synchronously or separately only through the emergency opening rod 51, thereby improving maintenance efficiency.

[0064] 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 the accurate locking and unlocking of the car door, and improving the stability and safety of the car door lock structure.

[0065] Referring to FIG. 3 , in some embodiments, the vehicle door lock structure further includes a position detector 6 , which selectively abuts against the sector tooth 2 to determine whether the sector tooth 2 is in its initial position. The position detector 6 is connected to a controller, which is connected to the drive assembly 3 to control the drive assembly 3 to rotate the sector tooth 2 based on the position of the sector tooth 2. The position detector 6 is fixedly connected to a base plate on which the vehicle door lock structure is mounted.

[0066] The initial position of the sector tooth 2 is when the door is unlocked, i.e., when the sector tooth 2 abuts the position monitoring member. When the sector tooth 2 abuts the position detecting member 6, the position detecting member 6 sends a signal to the controller indicating that the sector tooth 2 is in a drivable position. Upon receiving the signal from the position detecting member 6, the controller sends a signal to the drive assembly 3, which enables the drive assembly 3 to drive the sector tooth 2 to rotate.

[0067] 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, so that the driving component 3 can 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.

[0068] Referring to Figures 3 and 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.

[0069] In this embodiment, the limiting member 53 is a retaining spring, which extends outward with two ends, 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.

[0070] The suction link 41 rotates under the force of the return spring 414. When the suction link 41 rotates until the side wall abuts 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.

[0071] 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.

[0072] The limiter 53 may 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 further rotation of the suction link 41. The specific structure and material of the limiter 53 can be adjusted according to actual needs, and will not be listed in detail here.

[0073] Referring to FIG. 3 , in some embodiments, the position detection member 6 is a reset switch comprising a retractable probe 61 connected to a controller. The sector teeth 2 are connected to a positioning block 24 that selectively abuts against the probe 61. The positioning block 24 is a wedge-shaped block structure that is fixedly mounted on the side of the sector teeth 2 facing the position detection member 6 , with the tip of the positioning block 24 facing the position detection member 6 .

[0074] During the rotation of the fan tooth 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 tooth 2, and at the same time ensure that when the fan tooth 2 rotates to the initial position, the probe 61 transmits a signal to the controller in a timely manner.

[0075] 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.

[0076] 3 , in some embodiments, the drive assembly 3 includes a drive member 31 , a worm 32 and a bevel gear 33 . The drive 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 sector gear 2 for rotating the sector gear 2 .

[0077] 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 mounted. 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 sector teeth 2; the motor is connected to the controller for receiving the control signal of the controller.

[0078] When the motor receives a control signal, it can drive the worm 32 to rotate forward or reverse, thereby causing the helical gear 33 to drive the sector gear 2 to rotate forward or reverse.

[0079] In this application, the operating modes of the automobile door lock structure include an engagement mode, an unlocking mode, and a manual unlocking mode after the engagement process stops unexpectedly, as follows:

[0080] 1. Attraction mode.

[0081] Referring to Figures 2 and 5 , the ratchet 11 and pawl 12 are in a disengaged state when unlocked, with the positioning block 24 abutting against the probe 61, confirming that the sector tooth 2 is in its initial position. When the operator closes the vehicle door to the semi-locked position (i.e., the lock catch 13 slides into the locking groove 111), power is supplied to the driver 31 to cause the worm 32 to rotate forward, driving the sector tooth 2 to rotate clockwise (i.e., in the direction indicated by the arrow in Figure 5 ). Because the transmission pin 43 is located within the first meshing groove 23 and the second meshing groove 412 under the action of the unlocking spring 423, the sector tooth 2 drives the engaging link 41 to rotate synchronously, causing the first control portion 413 to rotate the ratchet 11, causing the lock catch 13 to engage and lock with the ratchet 11, and the ratchet 11 to engage with the pawl 12, thereby locking the vehicle door.

[0082] After the car 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 sends a position signal to the controller, so that the controller controls the driving member 31 to cut off the power, thereby completing the reset of the fan tooth 2 and the suction link 41.

[0083] 2. Unlock mode.

[0084] Referring to Figures 2 and 6, when the car door is locked, the ratchet 11 and the pawl 12 are in an engaged and locked state. When the car door needs to be unlocked, power is supplied to the driving member 31, so that the driving member 31 drives the bevel gear 33 to drive the fan tooth 2 to rotate counterclockwise (i.e., the direction indicated by the arrow in Figure 6). The toggle lever 25 on the fan tooth 2 rotates the toggle unlocking lever 42, 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. The ratchet 11 is reset under the action of the spring, so that the lock catch 13 slides out of the locking groove 111, thereby unlocking the car door.

[0085] 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.

[0086] 3. Manual unlocking mode after the pull-in process stops unexpectedly.

[0087] Referring to Figure 7, during 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.

[0088] At the same time, as the emergency opening rod 51 moves downward, the unlocking spring 423 transmits force to the unlocking rod 42, causing the unlocking rod 42 to drive the pawl 12 to rotate, thereby releasing the engagement between the pawl 12 and the ratchet 11, allowing the car door to open normally.

[0089] 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. 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, 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.

[0090] The present application also provides a car, comprising a car body, a car door 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.

Claims

1. A car door lock structure, comprising: A locking assembly (1), comprising a ratchet (11) and a pawl (12), wherein the ratchet (11) and the pawl (12) are selectively engageable; Sector teeth (2) and a driving assembly (3), wherein the driving assembly (3) is connected to the sector teeth (2) and is used to drive the sector teeth (2) to rotate; A linkage mechanism (4), the linkage mechanism (4) comprising an engaging link (41) for driving the ratchet (11) to rotate, an unlocking lever (42) for driving the pawl (12) to rotate, and a transmission pin (43), wherein the sector teeth (2) and the engaging link (41) can selectively rotate 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, wherein: 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, wherein: The manual unlocking mechanism (5) comprises 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); The sector teeth (2) are 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 teeth (2) and the suction connecting rod (41) can selectively mesh and rotate synchronously.

4. The automobile door lock structure according to claim 3, wherein: The suction link (41) is connected to a reset spring (414) for resetting the suction link (41) to an initial position after the sector teeth (2) and the suction link (41) stop rotating synchronously. 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, wherein: 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) is in contact with the connecting rod (52), and the other end of the unlocking spring (423) 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).

6. The automobile door lock structure according to claim 4, further comprising: A position detection member (6) is selectively in contact with the sector tooth (2) and is used to determine whether the sector tooth (2) is located at an initial position. The position detection member (6) is connected to a controller, and the controller is connected to the drive assembly (3) and is used to control 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, wherein: The manual unlocking mechanism (5) further includes a limiting member (53), which is arranged on the same side of the sector tooth (2) as the position detecting member (6) and is used to limit the movement of the suction connecting rod (41) when the suction connecting rod (41) rotates to the initial position under the action of the return spring (414).

8. The automobile door lock structure according to claim 6, wherein: The position detection member (6) is a reset switch, comprising a retractable probe (61), the probe (61) being connected to the controller, the sector teeth (2) being connected to a positioning block (24), the positioning block (24) being selectively in contact with the probe (61).

9. The automobile door lock structure according to any one of claims 1 to 5, wherein: 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 engaged with the worm (32) and the sector teeth (2) and is used to rotate the sector teeth (2).

10. An automobile comprising a vehicle body, a vehicle door, and the automobile door lock structure according to any one of claims 1 to 9, wherein the automobile 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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