Automobile self-suction self-unlocking and door lock driver

Abstract

The present application relates to a kind of automobile self-suction self-unlocking and door lock driver, automobile self-suction self-unlocking includes lock bottom plate, ratchet wheel, pawl and ratchet wheel on ratchet wheel connecting plate, ratchet wheel connecting plate is equipped with ratchet wheel one stop detection block and ratchet wheel two stop detection block, ratchet wheel one side is equipped with ratchet wheel one stop position switch and ratchet wheel two stop position switch;Ratchet wheel or ratchet wheel connecting plate is connected with ratchet wheel ice-breaking push arm, and ratchet wheel ice-breaking push arm is connected with ice-breaking pull line;The pawl connecting plate of pawl is equipped with pawl push piece;Self-suction rocker arm is connected with self-suction pull line, when self-suction rocker arm rotates, the self-suction connecting arm set pushes ratchet wheel from half-lock position to full-lock position;Electric opening rocker arm is equipped with rocker arm push piece, and rocker arm push piece rotates with electric opening rocker arm, by pawl push piece push pawl rotates, release ratchet wheel.Door lock driver is used to control self-suction pull line and ice-breaking pull line.The present application is used for the opening and closing of automobile side door, so that door opening, door closing is more relaxed, noise is lower, prolongs the service life of door lock and door hinge.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of automobile accessories, and particularly relates to a self-suction and self-opening lock and door lock driver for an automobile. BACKGROUND

[0002] At present, the opening mode of the side door lock of an automobile on the market is realized by manually operating the inner and outer handles of the door, that is, the door opening action is realized by manual operation; when the side door lock is closed, the ratchet wheel is rotated to a certain angle, and the pawl clamps the ratchet wheel due to the spring action, so that the locking action is achieved; this process depends on the closing force of the passenger, and if the force is not enough, the door cannot be completely locked, and the passenger needs to close the door again until the door is completely locked. The traditional door lock has a single function, and in the current background of continuous intelligentization, it has been far from meeting the market demand, so the automobile door lock with a self-suction function is more and more welcomed by manufacturers and users.

[0003] However, few manufacturers have developed a self-opening lock for the side door of an automobile, and only the lock body structure with self-suction and self-opening functions has been proposed for the tail door lock, but the structure is not suitable for the side door of an automobile. SUMMARY

[0004] The purpose of the present application is to provide a self-suction and self-opening lock and door lock driver for an automobile, which is used for the opening and closing of the side door of an automobile, so that the door opening and closing is more relaxed and the noise is lower, and the service life of the door lock and the door hinge is prolonged.

[0005] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows: a self-suction and self-opening lock for an automobile, comprising a lock bottom plate, a ratchet wheel and a pawl, the ratchet wheel and the pawl are respectively rotatably installed on the ratchet wheel shaft and the pawl shaft of the lock bottom plate, and when the ratchet wheel is in the full locking position, the pawl is engaged with the ratchet wheel to prevent the ratchet wheel from being reset and unlocked; further comprising a ratchet wheel connecting plate, the ratchet wheel connecting plate is arranged on the ratchet wheel, the ratchet wheel connecting plate is provided with a ratchet wheel one-stop detection block and a ratchet wheel two-stop detection block, and the ratchet wheel one side is provided with a ratchet wheel one-stop position switch and a ratchet wheel two-stop position switch; a pawl connecting plate is arranged on the pawl, and the pawl connecting plate is provided with a pawl pushing piece; the ratchet wheel or the ratchet wheel connecting plate is further connected with a ratchet wheel ice-breaking pushing arm, and the ratchet wheel ice-breaking pushing arm is connected with an ice-breaking pulling wire;

[0006] A self-suction rocker arm, the rotation axis of the self-suction rocker arm is parallel to the rotation axes of the ratchet wheel and the pawl; a position of the self-suction rocker arm away from the rotation center thereof is connected with a self-suction pulling wire, and the self-suction rocker arm is provided with a self-suction connecting arm; in the process of the self-suction pulling wire pulling the self-suction rocker arm to rotate, the self-suction connecting arm pushes the ratchet wheel to rotate from the half-locking position to the full-locking position;

[0007] The electric opening rocker arm is arranged perpendicularly to the rotation axis of the ratchet wheel, and a rocker arm tab is arranged on the electric opening rocker arm.

[0008] The lock opening motor drives the worm to rotate, and the worm drives the worm wheel to rotate.

[0009] The worm wheel is provided with a worm wheel position switch.

[0010] The ratchet wheel one stop detection block and the ratchet wheel two stop detection block are arranged at different positions on the circumference of the ratchet wheel linkage plate and are at different heights.

[0011] The ratchet wheel shaft of the ratchet wheel is provided with a ratchet wheel return spring for resetting the ratchet wheel.

[0012] The pawl is provided with a pawl position switch on one side, and the pawl linkage plate is provided with a pawl position detection block capable of triggering the pawl position switch.

[0013] The self-suction rocker arm is provided with a clamping groove and a wire groove, the self-suction pull wire head is clamped in the clamping groove, and the self-suction pull wire is clamped in the wire groove.

[0014] The wire groove is an arc-shaped groove and takes the rotation center of the self-suction rocker arm as the center.

[0015] The application further provides a door lock driver for cooperating with the automobile self-suction self-locking device, comprising a shell and a cover plate, the shell and the cover plate are connected by clamping, a driven rocker arm is rotatably arranged in the shell, the driven rocker arm is connected with the ice-breaking pull wire, and an axial protruding stop block is arranged on the driven rocker arm; a third gear is coaxially arranged on the rotation shaft of the driven rocker arm, the third gear is provided with a stop surface, and when the third gear reversely rotates, the stop surface acts on the stop block to make the driven rocker arm rotate to tighten the ice-breaking pull wire; an arc-shaped sliding groove is further arranged on the third gear, and the connecting end of the self-suction pull wire is slidably arranged in the arc-shaped sliding groove, when the third gear positively rotates, the end of the arc-shaped sliding groove acts on the connecting end of the self-suction pull wire to tighten the self-suction pull wire; a motor and a gear transmission mechanism for driving the third gear to rotate are further arranged in the shell.

[0016] The gear transmission mechanism comprises a first gear and a second gear, both of which are double gears, the two ends of the first gear are respectively engaged with the third gear and one end of the second gear, the other end of the second gear is a worm wheel engaged with a worm, and the worm is connected with the motor.

[0017] The self-sucking and self-unlocking structure is compact, the transmission path is simple, the self-sucking and self-unlocking of the automobile side door can be realized, the door closing and opening is more convenient, the noise is lower, the service life of the door lock and the door hinge is prolonged, and the development requirement of the automobile intelligentization is met.

[0018] The self-sucking and self-unlocking structure can also drive the ratchet wheel to rotate by the ice-breaking pull wire when the ratchet wheel is difficult to be unlocked due to icing, and the unlocking action is completed.

[0019] The door lock driver is compact, the self-sucking pull wire and the ice-breaking pull wire are controlled by the forward rotation and reverse rotation of the driving motor and the transmission gear, and the automobile self-sucking and self-unlocking can be well matched.

[0020] The door lock driver is compact, the self-sucking pull wire and the ice-breaking pull wire are controlled by the forward rotation and reverse rotation of the driving motor and the transmission gear, and the automobile self-sucking and self-unlocking can be well matched. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The structure diagram of the self-sucking and self-unlocking structure is shown.

[0022] Figure 2 The structure explosion diagram of the locking mechanism in the self-sucking and self-unlocking structure is shown.

[0023] Figure 3 The structure explosion diagram of the self-unlocking mechanism in the self-sucking and self-unlocking structure is shown.

[0024] Figure 4 The structure explosion diagram of the door lock driver is shown.

[0025] Figure 5 The structure diagram of the first assembly process of the door lock driver is shown.

[0026] Figure 6 The structure diagram of the second assembly process of the door lock driver is shown.

[0027] Figure 7 The assembly diagram of the driven rocker arm and the third gear in the door lock driver is shown.

[0028] Marked in the diagram: 1. Lock base plate, 2. Ratchet, 201. Protrusion, 3. Ratchet shaft, 4. Ratchet return spring, 5. Ratchet linkage plate, 6. Pad, 7. Pad shaft, 8. Pad linkage plate, 801. Pad lever, 9. Pad position switch, 10. Ratchet first position switch, 11. Self-priming rocker arm shaft, 12. Ratchet second position switch, 13. Self-priming linkage arm shaft, 14. Self-priming linkage arm, 15. Self-priming rocker arm, 16. Self-priming pull cable, 17. Ratchet ice-breaking push arm, 18. 19. Ice-breaking pull line; 20. Pawl position detection block; 21. Electric rocker arm; 22. Rocker arm paddle; 23. Electric rocker arm shaft; 24. Worm gear position switch; 25. Worm gear; 26. Worm gear shaft; 27. Unlocking motor; 28. Housing; 29. ​​Limit block; 30. Driven rocker arm; 21. Stop block; 32. Driver motor; 33. First gear; 34. Second gear; 35. Third gear; 36. Arc-shaped groove; 37. Stop surface; 38. Cover plate. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the invention in any way.

[0030] Example 1:

[0031] See attached document Figures 1-3 As shown, a self-priming and self-unlocking car includes a lock base plate 1, a ratchet 2, a ratchet linkage plate 5, a pawl 6, a pawl position switch 9, a ratchet first position switch 10, a ratchet second position switch 12, a self-priming linkage arm 14, a self-priming rocker arm 15, a self-priming pull cable 16, a ratchet ice-breaking push arm 17, an ice-breaking pull cable 18, an electric unlocking rocker arm 20, a worm gear position switch 22, a worm gear 23, and an unlocking motor 25.

[0032] The lock base plate 1 is fixedly equipped with a ratchet shaft 3, a pawl shaft 7, a self-priming rocker arm shaft 11, and a self-priming connecting arm shaft 13.

[0033] The ratchet wheel 2 is arranged to rotate around a ratchet wheel shaft 3, the ratchet wheel shaft 3 is provided with a ratchet wheel return spring 4 for resetting the ratchet wheel 2, the ratchet wheel 2 is connected with a ratchet wheel linkage plate 5, the circumferential surface of the ratchet wheel linkage plate 5 is provided with a ratchet wheel first stop detection block and a ratchet wheel second stop detection block, the ratchet wheel first stop detection block and the ratchet wheel second stop detection block are two plate blocks which are axially distributed and circumferentially staggered; two position switches are arranged on one side of the ratchet wheel 2, which are a ratchet wheel first stop position switch 10 and a ratchet wheel second stop position switch 12, the ratchet wheel first stop position switch 10 is used in cooperation with the ratchet wheel first stop detection block, the ratchet wheel second stop position switch 12 is used in cooperation with the ratchet wheel second stop detection block, so as to provide an action signal for a door lock driver, the door lock driver drives a self-sucking pull wire to be tightened or relaxed. When the ratchet wheel first stop detection block triggers the ratchet wheel first stop position switch 10, the ratchet wheel 2 is in a full lock position, at this time, the vehicle door lock catch and the ratchet wheel 2 are completely locked. When the ratchet wheel second stop detection block triggers the ratchet wheel second stop position switch 12, the ratchet wheel 2 is in a half lock position, at this time, the vehicle door lock catch and the ratchet wheel 2 are not completely locked.

[0034] The ratchet wheel linkage plate 5 is further provided with a ratchet wheel ice breaking push arm 17, the ratchet wheel ice breaking push arm 17 is connected with an ice breaking pull wire 18, when ice breaking is needed, the ice breaking pull wire 18 is tightened, the ratchet wheel ice breaking push arm 17 drives the ratchet wheel linkage plate 5 to rotate, and then drives the ratchet wheel 2 to rotate in the unlocking direction.

[0035] The pawl 6 is rotatably arranged around the pawl shaft 7, the pawl 6 is provided with a pawl linkage plate 8, the pawl linkage plate 8 synchronously acts with the pawl 6, the circumferential surface of the pawl linkage plate 8 is provided with a pawl pushing piece 801 and a pawl position detection block 19; a pawl position switch 9 is arranged on one side of the pawl 6 for detecting the pawl position detection block 19. The pawl 6 is engaged with the ratchet wheel 2 to prevent the ratchet wheel 2 from rotating in the unlocking direction, the pawl 6 is connected with a pawl return spring to reset the pawl 6.

[0036] The self-sucking rocker shaft 11 is rotatably arranged with a self-sucking rocker arm 15, the self-sucking rocker arm 15 is a fan-shaped structure, the rotation center of the self-sucking rocker arm 15 is the center position of the fan-shaped structure, a clamping groove is arranged on the self-sucking rocker arm 15 away from the center position, the clamping groove is clamped with the pull wire head of a self-sucking pull wire 16, an arc-shaped groove is arranged on the fan-shaped surface of the self-sucking rocker arm 15, the arc-shaped groove is centered on the rotation center of the self-sucking rocker arm 15, the self-sucking pull wire 16 is clamped in the arc-shaped groove, the self-sucking pull wire 16 is tightened or relaxed to drive the self-sucking rocker arm 15 to rotate. The self-sucking linkage arm 14 is connected on the fan-shaped surface of the self-sucking rocker arm 15, the self-sucking linkage arm 14 synchronously acts with the self-sucking rocker arm 15. In the process that the self-sucking rocker arm 15 drives the self-sucking linkage arm 14 to rotate, the end of the self-sucking linkage arm 14 can push the protruding part 201 on the ratchet wheel 2, and then drives the ratchet wheel 2 to rotate in the locking direction, so as to realize self-sucking locking of the vehicle door.

[0037] The lock bottom plate 1 is provided with a notch, the vehicle door lock catch enters the notch and is locked with the ratchet wheel 2.

[0038] The rotation axes of the ratchet wheel 2, the ratchet wheel linkage plate 5, the pawl 6, the pawl linkage plate 8, the self-sucking rocker arm 15 and the self-sucking linkage arm 14 in the above structure are parallel and all perpendicular to the plane of the lock bottom plate 1. A side plate perpendicular to the lock bottom plate 1 is further connected to the lock bottom plate 1, and the electric opening rocker arm 20 is rotatably installed on the side plate. The electric opening rocker arm 20 is provided with a rocker arm push piece 2001 in the circumferential direction, which is in contact with the pawl push piece 801 on the pawl linkage plate 8 and used to push the pawl linkage plate 8 to rotate the pawl 6 in the direction of unlocking the ratchet wheel 2. The electric opening rocker arm 20 is provided with a worm wheel 23 and a motor 25 with a worm on one side. The worm wheel 23 is rotatably installed on the side plate, and the worm wheel 23 is provided with a protrusion used to push the electric opening rocker arm 20 to rotate. The unlocking motor 25 is fixed on the side plate, and the unlocking motor 25 drives the worm to rotate, which drives the worm wheel 23 to rotate. The protrusion on the worm wheel 23 pushes the electric opening rocker arm 20 to rotate, and further pushes the ratchet wheel linkage plate 8 and the ratchet wheel 6 to rotate.

[0039] The worm wheel 23 is provided with a worm wheel position detection block, and the worm wheel 23 is provided with a worm wheel position switch 22 on one side. During the rotation of the worm wheel 23 to push the electric opening rocker arm 20 to rotate, the worm wheel position detection block can trigger the worm wheel position switch 22, so as to control the unlocking motor 25 to stop and perform reverse action to drive the worm wheel 23 to reset.

[0040] The rotation axes of the electric opening rocker arm 20 and the worm wheel 23 are parallel and perpendicular to the rotation axis of the ratchet wheel 2.

[0041] The self-sucking self-unlocking of the application includes a locking mechanism and a self-opening mechanism. The locking mechanism can realize self-sucking locking of the vehicle door, and the self-opening mechanism is used to realize unlocking of the vehicle door. When the door lock is frozen and cannot be normally unlocked, the self-opening mechanism can also realize ice-breaking unlocking.

[0042] In the locking mechanism, the main components include a ratchet wheel, a ratchet wheel linkage plate, a self-sucking rocker arm, a self-sucking linkage arm and a self-sucking pull wire.

[0043] The self-sucking process based on the locking mechanism is as follows: during the closing process of the vehicle door, the door lock catch enters the gap on the side of the lock bottom plate 1, and then enters the locking groove on the ratchet wheel 2 and pushes the ratchet wheel 2 to rotate in the locking direction by a certain angle. When the ratchet wheel two stop detection block on the ratchet wheel linkage plate 5 triggers the ratchet wheel two stop position switch 12, the ratchet wheel two stop position switch 12 generates a signal. According to the signal, the door lock driver controls the self-sucking pull wire 16 to be tightened to pull the self-sucking rocker arm 15 and drive the self-sucking linkage arm 14 to push the ratchet wheel 2, so that the ratchet wheel 2 is further rotated in the locking direction. When the ratchet wheel one stop detection block on the ratchet wheel linkage plate 5 triggers the ratchet wheel one stop position switch 10, the ratchet wheel 2 is completely engaged with the door lock catch. According to the signal of the ratchet wheel one stop position switch 10, the door lock driver stops working, the self-sucking pull wire 16 resets, and the self-sucking locking work of the vehicle door is completed.

[0044] In the process, when the door is closed to trigger the ratchet gear second gear position switch 12, the door is in the half-lock state, the ratchet gear 2 is in the half-lock position, and then the self-suction action is performed by the self-suction pull wire to complete the locking of the door. After locking, the ratchet gear is in the full-lock position. Therefore, when closing the door, there is no need to force the door to be closed, which can protect the door hinge and prolong the service life of the hinge.

[0045] The self-opening process based on the self-opening mechanism is as follows: when the ratchet gear 2 is in the full-lock position, the unlocking motor 25 works to rotate the worm gear 23 driven by the worm, the worm gear 23 pushes the electric opening rocker arm 20 to rotate in the clockwise direction, Figure 3 The rocker arm tab 2001 of the electric opening rocker arm 20 pushes the pawl tab 801 on the pawl connecting plate 8 to drive the pawl connecting plate 8 and the pawl 6 to rotate in the counterclockwise direction, Figure 3 The pawl 6 is unlocked from the ratchet gear 2, thereby releasing the ratchet gear 2, and the ratchet gear 2 is reset under the action of the ratchet gear reset spring 4, i.e. the ratchet gear 2 rotates in the unlocking direction, the locking of the door lock catch is released, and the self-opening work is completed.

[0046] When the pawl 6 is disengaged from the ratchet gear 2, if the ratchet gear 2 cannot be reset under the action of the ratchet gear reset spring 4 due to freezing at this time, i.e. the ratchet gear connecting plate 5 does not trigger the ratchet gear first gear position switch 10, the door lock driver starts the ice-breaking pull wire 18, pulls the ratchet gear ice-breaking push arm 17, and drives the ratchet gear 2 to rotate in the unlocking direction, thereby releasing the locking of the door.

[0047] Embodiment 2:

[0048] As shown in Figures 4-6 , a door lock driver is used in cooperation with the self-suction and self-opening lock of the automobile in embodiment 1 to control the actions of the self-suction pull wire and the ice-breaking pull wire.

[0049] Referring to the assembly process sequence diagram of Figure 4 , a door lock driver includes a housing 26, a driven rocker arm 27, a driver motor 28, a first gear 29, a second gear 30, a third gear 31, a cover plate 32, a self-suction pull wire 16, and an ice-breaking pull wire 18. The housing 26 and the cover plate 32 are connected by buckling, and the driven rocker arm 27, the driver motor 28, the first gear 29, the second gear 30, and the third gear 31 are installed inside. The self-suction pull wire 16 and the ice-breaking pull wire 18 pass through the holes on the side of the housing 26, the self-suction pull wire 16 is connected with the third gear 31, and the ice-breaking pull wire 18 is connected with the driven rocker arm 27.

[0050] The connection relationship and position relationship of the above-mentioned components in the present application will be described in detail below in combination with the assembly process sequence diagram of Figure 5 , 6 .

[0051] AsFigure 5 As shown, during the installation process of step one, the first gear 29, the driven rocker arm 27, the ice-breaking pull line 18, and the driver motor 28 are installed inside the housing 26.

[0052] Specifically, the first gear 29 is rotatably mounted inside the housing 26, and the driven rocker arm 27 is fan-shaped, with its center as the rotation center, and is mounted inside the housing 26. The driven rocker arm 27 is provided with a connecting hole for connecting to the connector at the end of the ice-breaking pull line 18; in the reverse direction of the driven rocker arm 27 (… Figure 5 During the counter-clockwise rotation, the ice-breaking cable 18 is tightened, and the other end of the ice-breaking cable 18 pulls the ratchet 2 in the self-locking mechanism, thus unlocking the door lock by breaking the ice. A limit block 2601 is provided on the housing 26, and the limit block 2601 is located at the point where the rocker arm 27 rotates in the forward direction (…). Figure 5 The path of rotation (clockwise) is used to limit the rotation amplitude of the rocker arm 27 in the positive direction; the motor 28 is connected to a worm gear and is fixed in a motor fixing slot inside the housing 26.

[0053] like Figure 6 As shown, during the installation process of step two, the second gear 30, the third gear 31, and the self-priming pull line 16 are installed.

[0054] Specifically, the second gear 30 is rotatably mounted between the worm and the first gear 29. The second gear 30 is a double gear with unequal diameters, meshing simultaneously with both the worm and the first gear 29. The driver motor 28 drives the second gear 30 through the worm, and the second gear 30 drives the first gear 29 to rotate. The third gear 31 is coaxially mounted with the driven rocker arm 27. One end face of the third gear 31, on which a gear ring is provided, has a stop surface 3102. The surface of the driven rocker arm 27 has an axially protruding stop block 2701. The stop surface 3102 and the stop block 2701 are also provided. The engagement mechanism allows the third gear 31 to drive the driven rocker arm 27 to rotate during ice breaking, while the driven rocker arm 27 remains unaffected by the third gear 31 during self-priming. The first gear 29 is a double gear with unequal diameters; it meshes with both the second and third gears 30, thereby driving the third gear 31 to rotate. An arc-shaped groove 3101 is provided on the other end face of the third gear 31 opposite to the stop surface 3102, and the connecting end of the self-priming pull cable 16 is slidably connected in the arc-shaped groove 3101. The third gear 31 is in the forward direction (…). Figure 6When the self-priming pull cable 16 rotates clockwise, the connecting end of the self-priming pull cable 16 is located at one end of the arc-shaped slide groove 3101, the self-priming pull cable 16 is tightened, and the self-priming and self-unlocking ratchet connected to the other end of the self-priming pull cable 16 is pulled, locking the door latch and realizing the self-priming locking of the door. At this time, the stop surface on the third gear 31 moves away from the stop block 2701 of the driven rocker arm 27, so the driven rocker arm 27 will not rotate and remains stationary; the third gear 31 rotates counterclockwise (in the reverse direction). Figure 6 When the third gear 31 rotates counterclockwise, the arc-shaped groove 3101 slides relative to the connecting end of the self-priming pull cable 16, and the self-priming pull cable 16 is not pulled. Meanwhile, the stop surface on the third gear 31 acts on the stop block 2701 of the rocker arm 27, causing the rocker arm 27 to rotate counterclockwise. Figure 5 , 6 Rotate counterclockwise (in the middle) to tighten the ice-breaking line 9.

[0055] The working process of the self-priming function and ice-breaking function of the door lock driver is described below.

[0056] The self-priming function is achieved as follows: When the ratchet second position switch 12 is triggered, a corresponding action signal is generated. The driver motor starts according to this signal, driving the second gear 30 to rotate, which in turn drives the third gear 31 forward through the first gear 29. Figure 6 The self-closing cable 16 is pulled taut by rotating clockwise. The other end of the self-closing cable 16 pulls the ratchet in the car lock, causing the ratchet 2 to rotate further in the locking direction, so that the ratchet can self-closing the door lock latch. Then the driver motor 28 reverses to the initial state.

[0057] The ice-breaking function is implemented as follows: When the ratchet cannot be reset and unlocked due to freezing, the ratchet linkage plate 5 does not trigger the ratchet first position switch 10, the driver motor 28 rotates in reverse, and through the transmission of the worm, the second gear 30, and the first gear 29, drives the third gear 31 in reverse ( Figure 6 The third gear 31 rotates counterclockwise, and pushes the rocker arm 27 to rotate synchronously, thereby tightening the ice-breaking cable 18. The other end of the ice-breaking cable 18 pulls the frozen ratchet 2 to rotate in the unlocking direction, releasing the lock on the car door.

[0058] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Those skilled in the art should understand that modifications or equivalent substitutions can be made to the specific implementation of the present invention with reference to the above embodiments. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention are within the protection scope of the pending claims.

Claims

1. A self-locking and self-unlocking mechanism for automobiles, comprising a lock base plate, a ratchet, and a pawl, wherein the ratchet and pawl are rotatably mounted on the ratchet shaft and pawl shaft of the lock base plate, respectively; when the ratchet is in the fully locked position, the pawl engages with the ratchet to prevent the ratchet from resetting and unlocking; characterized in that: It also includes a ratchet linkage plate, which is mounted on the ratchet. The ratchet linkage plate is equipped with a ratchet first gear detection block and a ratchet second gear detection block. A ratchet first gear position switch and a ratchet second gear position switch are provided on one side of the ratchet. A ratchet ice-breaking push arm is also connected to the ratchet or the ratchet linkage plate. The ratchet ice-breaking push arm is connected to the ice-breaking pull line. A pawl linkage plate is disposed on the pawl, and a pawl lever is provided on the pawl linkage plate; The self-priming rocker arm has a rotation axis parallel to the rotation axes of the ratchet and pawl. A self-priming pull line is connected to the self-priming rocker arm at a position away from its rotation center. The self-priming rocker arm is equipped with a self-priming linkage arm. During the rotation of the self-priming rocker arm by the self-priming pull line, the self-priming linkage arm pushes the ratchet to rotate from the half-lock position to the fully locked position. The electric rocker arm has a rotation axis perpendicular to the rotation axis of the ratchet. The electric rocker arm is equipped with a rocker arm lever. During the unlocking process, the electric rocker arm rotates, and the rocker arm lever acts on the pawl lever, pushing the pawl to rotate and release the ratchet.

2. The self-priming and self-unlocking method for automobiles according to claim 1, characterized in that: It also includes an unlocking motor and a worm gear mechanism. The unlocking motor drives the worm gear to rotate through the worm, and the worm gear is provided with a protrusion for pushing the electric unlocking rocker arm to rotate.

3. The self-priming and self-unlocking method for automobiles according to claim 2, characterized in that: A worm gear position switch is provided on one side of the worm gear.

4. The self-priming and self-unlocking method for automobiles according to claim 1, characterized in that: The first and second ratchet detection blocks are respectively located at different positions on the circumference of the ratchet linkage plate and at different heights. The first and second ratchet position switches are stacked on the lock base plate.

5. The self-priming and self-unlocking method for automobiles according to claim 1, characterized in that: A ratchet return spring for ratchet reset is mounted on the ratchet shaft of the ratchet.

6. The self-priming and self-unlocking method for automobiles according to claim 1, characterized in that: A pawl position switch is provided on one side of the pawl, and a pawl position detection block capable of triggering the pawl position switch is provided on the pawl linkage plate.

7. The self-priming and self-unlocking method for automobiles according to claim 1, characterized in that: The self-priming rocker arm is provided with a slot and a wire groove. The pull head of the self-priming pull cord is locked in the slot, and the self-priming pull cord is locked in the wire groove.

8. The self-priming and self-unlocking method for automobiles according to claim 7, characterized in that: The groove is an arc-shaped groove with the rotation center of the self-priming rocker arm as its center.

9. A door lock actuator for use with the self-closing and self-unlocking mechanism of an automobile as described in any one of claims 1-8, comprising a housing and a cover plate, wherein the housing and the cover plate are interlocked, characterized in that: A driven rocker arm is rotatably mounted inside the housing, connected to the ice-breaking cable. An axially protruding stop block is provided on the driven rocker arm. A third gear is coaxially mounted on the shaft of the driven rocker arm, and a stop surface is provided on the third gear. When the third gear rotates in the reverse direction, the stop surface acts on the stop block, causing the driven rocker arm to rotate and tighten the ice-breaking cable. The third gear also has an arc-shaped groove, in which the connecting end of the self-priming cable is slidably disposed. When the third gear rotates in the forward direction, the end of the arc-shaped groove acts on the connecting end of the self-priming cable to tighten it. The housing also contains a motor and a gear transmission mechanism for driving the third gear.

10. A door lock driver according to claim 9, characterized in that: The gear transmission mechanism includes a first gear and a second gear, both of which are double gears. The two ends of the first gear mesh with the third gear and one end of the second gear, respectively. The other end of the second gear is a worm gear that meshes with a worm, and the worm is connected to the motor.

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