Automobile right front door lock

Abstract

The invention discloses an automobile right front door lock, and relates to the technical field of automobile door lock bodies, the automobile right front door lock comprises a shell, a motor and a worm, the motor and the worm are both arranged in the shell, the worm and an output shaft of the motor are coaxially fixed, a locking swing arm, a clamping plate, a spring bolt and a locking assembly are further arranged in the shell, the locking swing arm is rotatably connected to the shell, and the clamping plate is rotatably connected to the locking assembly. Worm gear teeth are arranged on the circumferential side wall of the locking swing arm and meshed with the worm; the clamping plate and the spring bolt are both rotationally connected to the shell, and the spring bolt is engaged with or disengaged from the clamping plate when swinging, so that the vehicle door is locked or unlocked; when the locking swing arm swings, the locking assembly exerts or relieves limitation on swing of the spring bolt. The automobile door lock body assembling device has the effect of improving the automobile door lock body assembling efficiency and the use safety.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle door lock bodies, and in particular to a right front door lock of a vehicle. Background Art

[0002] Car door locks are an important part of car safety and convenience. They not only meet the basic function of locking the car doors and ensure the safety of the vehicle when driving and parking, but are also closely related to the vehicle's anti-theft system, comfort configuration, etc., to prevent the vehicle from being illegally invaded. At the same time, they can also support functions such as remote control keys and keyless entry, effectively improving the convenience of car use.

[0003] In the relevant technology of automobile door locks, the automobile door lock mainly includes a housing and a driving motor. The driving motor is installed in the housing. A worm gear and a turntable are arranged inside the housing. A worm is arranged on the output shaft of the driving motor. The worm gear is meshed with the worm gear, and the turntable is meshed with the worm gear. The driving motor drives the turntable to rotate through the meshing worm gear combination, thereby realizing the locking or unlocking related actions of the automobile door lock.

[0004] Inside the housing, since the worm wheel needs to mesh with both the worm and the turntable, high requirements are placed on the installation position and assembly accuracy of the worm wheel, worm, turntable and motor, which increases the difficulty of installing these components. It also affects the installation of other components in the housing, reducing the installation efficiency of the car door lock. Summary of the invention

[0005] In order to reduce the difficulty of installing a car door lock and improve the installation efficiency of the car door lock, the present application provides a car right front door lock.

[0006] The present application provides a right front door lock for a car, which adopts the following technical solution: A right front door lock of an automobile comprises a housing, a motor and a worm, wherein the motor and the worm are both arranged in the housing, and the worm is coaxially fixed with the output shaft of the motor, and the housing is also provided with a A locking swing arm is rotatably connected to the housing, and a worm gear is provided on a circumferential side wall of the locking swing arm, and the worm gear is meshed with the worm; The card plate and the lock tongue are both rotatably connected to the housing, and the lock tongue engages or disengages with the card plate when swinging to achieve locking or unlocking of the door; A locking assembly is used to impose or release restrictions on the swing of the lock tongue when the locking swing arm swings.

[0007] Optionally, the locking assembly includes a locking arm and an opening hook, the opening hook is slidably connected to the shell, and the opening hook overlaps with the lock tongue so that the lock tongue can be driven to swing when the opening hook moves, the locking arm is rotationally connected to the shell, and the rotation axis is perpendicular to the rotation axis of the locking swing arm, and the locking arm applies or releases restrictions on the movement of the opening hook when it swings, and a driving slot is circumferentially provided on the locking arm, and a driving protrusion is provided on the circumferential side wall of the locking swing arm, and the driving protrusion is engaged in the driving slot.

[0008] Optionally, the locking arm is provided with a locking slot, and the side wall of the opening hook is provided with a locking protrusion. When the locking arm swings, the locking protrusion is engaged in the locking slot to limit the movement of the opening hook.

[0009] Optionally, a locking transmission arm is slidably connected in the shell, a transmission slot is provided at one end of the locking transmission arm, and a lock core rotating arm is hinged at the other end. The lock core rotating arm is rotatably connected in the shell, and the driving protrusion is simultaneously engaged in the transmission slot. When the lock core rotating arm swings, the locking transmission arm drives the locking swing arm to swing to achieve mechanical locking.

[0010] Optionally, a backup locking knob is rotatably connected in the shell, and a backup locking block is provided on the circumferential side wall of the backup locking knob. When the backup locking knob is rotated, the backup locking block swings and pushes the locking arm to swing to achieve door locking.

[0011] Optionally, an outward-opening rocker arm is provided in the shell, one end of the outward-opening rocker arm is rotatably connected to the shell, and the other end extends out of the shell. The shell is provided with an open groove for the outward-opening rocker arm to move. The middle section of the outward-opening rocker arm abuts against the outer wall of the locking protrusion. When the outward-opening rocker arm swings, the opening hook is driven to move through the locking protrusion. An outward-opening tension spring is provided on the side of the outward-opening rocker arm away from the locking protrusion. One end of the outward-opening tension spring is connected to the inner wall of the shell, and the other end is connected to the side wall of the outward-opening rocker arm, which is used for returning the outward-opening rocker arm to its initial position.

[0012] Optionally, an inner opening rocker arm is provided inside the shell, which is rotatably connected to the shell, and the rotation axis is perpendicular to the axis of the locking rocker arm. An unlocking plate is provided on the inner opening rocker arm, and an unlocking protrusion is provided on the circumferential side wall of the locking rocker arm. When the inner opening rocker arm swings, the unlocking plate overlaps the unlocking protrusion to drive the locking rocker arm to swing, thereby unlocking the vehicle door.

[0013] Optionally, the inner opening rocker arm is provided with an inner opening card plate, and the inner opening card plate and the unlocking plate are divergently distributed along the axis of the inner opening rocker arm. An opening rocker arm is provided in the shell, and one end of the opening rocker arm is rotatably connected in the shell, and the rotation axis is perpendicular to the axis of the inner opening rocker arm. The other end of the opening rocker arm extends to overlap the inner opening card plate, and at the same time, the middle part of the opening rocker arm is rotatably connected to the opening hook.

[0014] Optionally, an auxiliary locking arm is rotatably arranged in the shell, and the rotation axis is parallel to the rotation axis of the inner opening rocker arm. The auxiliary locking arm can abut against the unlocking plate after swinging to limit the movement of the unlocking plate. An auxiliary locking structure is also provided in the shell for driving the auxiliary locking arm to swing. An auxiliary locking wall torsion spring is also provided in the shell for returning the auxiliary locking arm to its initial position.

[0015] Optionally, the auxiliary locking structure includes an electromagnet and an auxiliary drive arm. When the electromagnet is energized, it is attracted and fixed to the end of the worm. The auxiliary drive arm is fixed to the side of the electromagnet away from the worm. An auxiliary drive plate is circumferentially provided on the auxiliary locking arm. When the auxiliary drive arm swings, it can overlap with the auxiliary drive plate to cause the auxiliary locking arm to swing.

[0016] In summary, the present application includes at least one of the following beneficial effects: 1. By directly arranging worm gear teeth on the circumferential side wall of the locking swing arm, the worm gear teeth mesh with the worm, which is equivalent to the locking swing arm directly meshing with the worm, so that the motor can directly drive the locking swing arm to move through the meshing worm and worm gear teeth, without the need to add additional transmission components such as a turntable, thereby streamlining the internal structure of the lock body and effectively reducing the difficulty of installation. In addition, the locking swing arm and the locking arm are engaged together through a combination of a driving protrusion and a driving slot, so that the swing of the locking swing arm can drive the locking arm to swing synchronously, and after the locking arm swings, it can directly lock or unlock the opening hook, thereby realizing the final locking or unlocking state of the door. In the process of locking or unlocking, there is only the linkage between the locking swing arm, the locking arm and the opening hook, without the need for other additional locking structures, further streamlining the internal structure of the lock body and greatly reducing the difficulty of assembling the lock body; 2. In the locking or unlocking action, the locking swing arm can be driven by the motor to swing the worm gear linkage in the vehicle, and the lock cylinder rotating arm can be rotated by the key outside the vehicle to drive the locking transmission arm to move upward, and then the locking swing arm is driven to swing by the locking transmission arm. In addition, the backup locking knob can be directly rotated, and then the locking arm is directly driven to swing by the backup locking block. The above three methods can lock the door, providing users with a variety of ways to lock the door. In addition, the above three locking methods all lock the door by driving the locking swing arm or the locking arm to swing. The locking structure is simple and more compact, and the locking or unlocking action is more accurate and fast. 3. By arranging an auxiliary locking arm in the housing, when the electromagnet is energized, the electromagnet and the worm are attracted together, and the worm can drive the electromagnet and the auxiliary driving arm to rotate and swing together. During the swinging process of the auxiliary driving arm, it will overlap with the auxiliary driving plate, so that the auxiliary driving plate will swing synchronously, and the swinging of the auxiliary driving plate will drive the auxiliary locking arm to swing synchronously. After the auxiliary locking arm swings, it will move to the swinging path of the unlocking plate, and the auxiliary locking arm will abut against the unlocking plate. At this time, when the inner opening rocker arm is pulled in the car, the auxiliary locking arm will limit the swinging of the inner opening rocker arm by abutting against the unlocking plate. Therefore, the door cannot be unlocked by pulling the inner handle from inside the car. The energization of the electromagnet can be directly controlled by the button on the driver's side, or directly set in advance by the car computer. If the co-driver wants to unlock the door by pulling the inner handle while the car is driving, or the co-driver pulls the inner handle accidentally, the door will be unlocked directly. At this time, the co-driver may open the door and fall out of the car. When the driver needs to keep the co-driver in the car at all times, he can actively press the button on the driver's side to control the energization of the electromagnet. At this time, the co-driver cannot unlock the door by pulling the inner handle, thereby reducing the occurrence of accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram showing the front side of the right front door lock of a car according to an embodiment of the present application; Figure 2 is an exploded view showing the overall structure of a door lock according to an embodiment of the present application; Figure 3 It is a structural schematic diagram showing the engagement state of the card plate and the lock tongue in an embodiment of the present application; Figure 4 is a schematic diagram showing the structure of the interior of a door lock according to an embodiment of the present application; Figure 5 It is a structural schematic diagram showing the connection relationship between the locking swing arm and the locking arm in an embodiment of the present application; Figure 6 This is a structural schematic diagram showing the connection relationship between the lock tongue and the opening hook in an embodiment of the present application; Figure 7 This is a schematic diagram showing the structure of the opening hook and the opening rocker arm in the embodiment of the present application; Figure 8 This is a structural diagram showing the mechanical unlocking principle of an embodiment of the present application; Fig. 9 It is a structural schematic diagram showing the working principle of the auxiliary locking arm in an embodiment of the present application.

[0018] Explanation of the reference numerals: 1. housing; 11. front upper housing; 12. front lower housing; 13. lock body base; 131. backup locking knob; 132. opening rocker arm; 14. lock body mounting plate; 15. motor; 16. worm; 17. clamping plate; 18. locking tongue; 2. locking swing arm; 21. driving protrusion; 22. locking swing arm torsion spring; 23. worm gear; 24. unlocking protrusion; 3. locking arm; 31. driving slot; 32. locking slot ; 4. Open hook; 41. Connecting shaft; 42. Locking protrusion; 43. Connecting slot; 5. Locking transmission arm; 51. Transmission slot; 52. Lock core rotating arm; 6. Outward opening rocker arm; 61. Outward opening push plate; 62. Outward opening tension spring; 7. Inward opening rocker arm; 71. Unlocking plate; 72. Inward opening card plate; 73. Inward opening torsion spring; 8. Auxiliary locking arm; 81. Auxiliary driving plate; 9. Electromagnet; 91. Auxiliary driving arm; 92. Moving part. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-9 This application is described in further detail.

[0020] The present application embodiment discloses a right front door lock of a car, referring to Figure 1 and Figure 2 The right front door lock of the automobile includes a housing 1, which is used to provide installation positions and installation spaces for various parts of the lock body. The housing 1 includes a front upper housing 11 and a front lower housing 12, which are distributed on the left and right and are snap-fitted as a whole. A receiving cavity is formed between the front upper housing 11 and the front lower housing 12 for installing other parts of the lock body. A lock body base 13 is also fixed to the receiving cavity inside the housing 1, and the lock body base 13 divides the internal cavity of the housing 1 into two independent cavities. The outer wall of the lock body base 13 is detachably connected to a lock body mounting plate 14, which can be detachably connected by bolts. The door lock can be fixed on the door through the lock body mounting plate 14 during installation.

[0021] Reference Figure 2 and Figure 3The housing 1 is provided with a motor 15, a worm 16, a card plate 17 and a lock tongue 18, wherein the motor 15 and the worm 16 are a group, which are arranged on one side of the lock body base 13, the motor 15 is fixed in the housing 1, the worm 16 is rotatably connected in the housing 1, and the worm 16 is coaxially fixed with the output shaft of the motor 15; the card plate 17 and the lock tongue 18 are a group, which are arranged on the other side of the lock body base 13, the card plate 17 is rotatably connected to the lock body base 13 through the card plate 17 axis, and the lock tongue 18 is rotatably connected to the lock body base 13 through the lock tongue 18 axis, and the rotation axis of the card plate 17 and the lock tongue 18 are parallel. In the initial state, the lock tongue 18 is meshed with the card plate 17, at which time the card plate 17 cannot swing, and the lock column of the car door lock is clamped in the groove of the card plate 17, so that the lock column is always clamped in the card plate 17, and the car door is in a locked state. When the door needs to be opened, one end of the lock tongue 18 swings downward, so that the lock tongue 18 is disengaged from the card plate 17. At this time, the card plate 17 can swing freely, so that the lock column can be pulled out from the card plate 17 to open the door. The card plate 17 and the lock tongue 18 are both provided with a torsion spring, so that the card plate 17 and the lock tongue 18 can always be engaged in the initial state. As for the setting method of the torsion spring, it is a conventional method and will not be repeated here.

[0022] Reference Figure 4 and Figure 5 In order to enable the door to be locked or unlocked normally after closing, a locking swing arm 2, a locking arm 3 and an opening hook 4 are arranged in the housing cavity on one side of the motor 15 in the housing 1, wherein the locking swing arm 2 and the locking arm 3 are both rotatably connected to the housing 1, and the rotation axes of the locking swing arm 2 and the locking arm 3 are arranged vertically, the locking swing arm 2 is rotatably connected to the inner wall of the front lower shell 12, and the locking arm 3 is rotatably connected to the lock body base 13 through the locking arm 3 connecting plate. A driving slot 31 is circumferentially provided on the locking arm 3, and the driving slot 31 is in an inwardly concave arc shape, and the locking swing arm 2 is integrally formed with a driving protrusion 21 on the circumferential side wall, and the driving protrusion 21 is engaged in the driving slot 31, so that when the locking swing arm 2 swings, the locking arm 3 can be driven to swing synchronously through the engagement of the driving protrusion 21 with the driving slot 31. A locking swing arm torsion spring 22 is also provided on the locking swing arm 2. One end of the locking swing arm torsion spring 22 is fixed to the side wall of the locking swing arm 2, and the other end is fixed to the inner wall of the front lower shell 12. The locking swing arm torsion spring 22 is used to always keep the locking swing arm 2 swinging to the position that drives the locking arm 3 to limit the opening of the hook 4. When the locking swing arm 2 swings to unlock the vehicle door, the locking swing arm torsion spring 22 drives the locking swing arm 2 to return to the locked position.

[0023] Reference Figure 4 and Figure 7The opening hook 4 is slidably connected to the lock body base 13, and the opening hook 4 is arranged at a position corresponding to the free end of the lock tongue 18. The opening hook 4 and the lock tongue 18 are connected as a whole through a connecting shaft 41. Specifically, one end of the connecting shaft 41 is inserted into the free end of the lock tongue 18, and the other end is inserted into the side wall of the opening hook 4. Specifically, a connecting slot 43 is provided on the side wall of the opening hook 4, and the connecting shaft 41 is inserted into the connecting slot 43, and the connecting shaft 41 abuts against the inner wall of the opening hook 4 at the connecting slot 43. An arc-shaped limiting groove is provided on the lock body base 13, and the connecting shaft 41 is slidably connected to the limiting groove. The opening hook 4 can drive the free end of the lock tongue 18 to swing along the direction in which the limiting groove is provided through the connecting shaft 41, thereby realizing the action of unlocking the lock tongue 18.

[0024] An inwardly recessed locking slot 32 is provided on the circumferential side wall of the locking arm 3, and an outwardly protruding locking protrusion 42 is integrally formed on the side wall of the opening hook 4. In the initial state, the locking arm 3 swings to a position where the locking protrusion 42 is engaged with the locking slot 32. At this time, the locking protrusion 42 on the opening hook 4 is engaged with the locking slot 32, thereby limiting the movement of the opening hook 4. At this time, the door is in a locked state and cannot be directly opened by the outer opening handle or the inner opening handle.

[0025] Furthermore, the motor 15 is directly embedded in the inner wall of the front lower shell 12, and the worm 16 is rotatably connected to the front lower shell 12, and the motor 15 can directly drive the worm 16 to rotate. A worm gear 23 is integrally formed on the circumferential side wall of the locking swing arm 2, and the worm gear 23 is meshed with the worm 16. When the motor 15 receives a locking command, the motor 15 drives the worm 16 to rotate, and can directly drive the locking swing arm 2 to swing through the meshing worm gear 23, thereby realizing the electric locking operation of the door, without the need to add additional transmission components such as a turntable, simplifying the structure inside the lock body, and effectively reducing the difficulty of installation, and the locking swing arm 2 and the locking arm 3 are engaged together through the combination of the driving protrusion 21 and the driving slot 31, so that the swinging of the locking swing arm 2 can drive the locking arm 3 to swing synchronously, and after the locking arm 3 swings, it can directly lock or unlock the opening hook 4, thereby realizing the final locking or unlocking state of the door. During the locking or unlocking process, only the linkage between the locking swing arm 2, the locking arm 3 and the opening hook 4 is required, and no other additional locking structure is required, which further simplifies the internal structure of the lock body and greatly reduces the difficulty of assembling the lock body.

[0026] Further, see Figures 3 to 8The inner wall of the front lower shell 12 is slidably connected with a locking transmission arm 5, one end of which is provided with a transmission slot 51, and the other end is rotatably connected with a lock core rotating arm 52, which is rotatably connected to the inner wall of the front upper shell 11, and an unlocking lock core is fixed on the lock core rotating arm 52, which is used to insert a door key, so as to lock or unlock the door outside the vehicle. The driving protrusion 21 on the locking swing arm 2 is also clamped in the transmission slot 51 of the locking transmission arm 5, and the lock core rotating arm 52 drives the locking transmission arm 5 to slide when the lock core rotating arm 52 swings, and then the locking transmission arm 5 drives the locking swing arm 2 to swing, thereby realizing the mechanical locking or unlocking action.

[0027] A backup locking knob 131 is rotatably connected in the lock body base 13, and a protruding backup locking block is integrally formed on the circumferential side wall of the backup locking knob 131, and the locking arm 3 is located on the swinging path of the backup locking block. When the backup locking knob 131 is manually driven to rotate, the protruding backup locking block swings and pushes the locking arm 3 to swing, thereby realizing the door locking operation.

[0028] During the locking or unlocking action, the motor 15 can drive the worm gear 16 to drive the locking swing arm 2 to swing in a linkage manner inside the vehicle; the lock cylinder rotating arm 52 can also be rotated by a key outside the vehicle, thereby driving the locking transmission arm 5 to move upward, and then the locking swing arm 2 is driven to swing by the locking transmission arm 5; in addition, the backup locking knob 131 can be directly rotated, and then the locking arm 3 is directly driven to swing through the backup locking block. The above three methods can all lock the door, providing users with a variety of ways to lock the door, and the above three locking methods all achieve locking of the door by driving the locking swing arm 2 or the locking arm 3 to swing, the locking structure is simple and more compact, and the locking or unlocking action is more accurate and fast.

[0029] An outward opening rocker arm 6 is provided in the housing 1, and the outward opening rocker arm 6 is located on the same side as the locking arm 3. One end of the outward opening rocker arm 6 is rotatably connected to the side wall of the lock body base 13, and the other end extends out of the housing 1, and the lock body base 13 and the front upper shell 11 are both provided with an opening slot for the outward opening rocker arm 6 to move. One end of the outward opening rocker arm 6 located outside the housing 1 is used to connect the outward opening pull rope, and then connected to the outward opening handle through the outward opening pull rope, so that the user can drive the outward opening rocker arm 6 to swing by pulling the outward opening handle outside the vehicle.

[0030] An outward opening push plate 61 is integrally formed at the middle section of the outward opening rocker arm 6, and the outward opening push plate 61 abuts against the outer wall of the locking protrusion 42 of the opening hook 4. When the outward opening rocker arm 6 swings, the locking protrusion 42 drives the opening hook 4 to move, thereby realizing the door opening action. An outward opening tension spring 62 is provided on the side of the outward opening rocker arm 6 away from the locking protrusion 42, one end of the outward opening tension spring 62 is connected to the inner wall of the lock body base 13, and the other end is connected to the side wall of the outward opening rocker arm 6, and the outward opening tension spring 62 is used to return the outward opening rocker arm 6 to the initial position.

[0031] An inner opening rocker arm 7 is provided inside the housing 1, and the inner opening rocker arm 7 is rotatably connected to the inner wall of the front lower housing 12, and the rotation axis is parallel to the rotation axis of the locking rocker arm 2. An unlocking plate 71 and an inner opening clamping plate 72 are integrally formed on the inner opening rocker arm 7, and the inner opening clamping plate 72 and the unlocking plate 71 are both distributed in a divergent shape along the rotation axis of the inner opening rocker arm 7. One end of the inner opening rocker arm 7 extends out of the housing 1 for connection with the inner opening pull rope, and the inner opening pull rope is connected to the inner opening handle, so that pulling the inner opening handle can drive the inner opening rocker arm 7 to swing. An opening rocker arm 132 is provided on the side of the lock body base 13 close to the locking arm 3, and one end of the opening rocker arm 132 is rotatably connected to the side wall of the lock body base 13, and the rotation axis is perpendicular to the rotation axis of the inner opening rocker arm 7. The other end of the opening rocker arm 132 extends inward until it overlaps with the inner opening clamping plate 72, and the middle part of the opening rocker arm 132 is rotatably connected to the opening hook 4.

[0032] The locking swing arm 2 is integrally formed with an unlocking protrusion 24 on the circumferential side wall. The unlocking protrusion 24 is located on the swinging path of the unlocking plate 71. When the inner opening handle is pulled once, the inner opening rocker arm 7 swings and drives the unlocking plate 71 to swing along. At this time, the unlocking plate 71 can overlap with the unlocking protrusion 24 to drive the locking swing arm 2 to swing, thereby realizing the action of unlocking the door; when the inner opening handle is pulled again, the inner opening rocker arm 7 swings again. Since the locking arm 3 has swung to a state of being separated from the opening hook 4 at this time, the swinging of the inner opening card plate 72 can drive the opening rocker arm 132 to swing. After the opening rocker arm 132 swings, it can drive the opening hook 4 connected to it to slide, thereby realizing the action of opening the door. The inner opening rocker arm 7 is also provided with an inner opening torsion spring 73, which can return the inner opening rocker arm 7 to its initial position after the inner opening rocker arm 7 moves.

[0033] Reference Figure 8 and Fig. 9 In order to further improve the safety of the car door lock when in use, an auxiliary locking arm 8 is rotatably arranged on the inner wall of the front lower shell 12, and the rotation axis is perpendicular to the rotation axis of the inner opening rocker arm 7. The auxiliary locking arm 8 can abut against the unlocking plate 71 after swinging to limit the movement of the unlocking plate 71 on the inner opening rocker arm 7, thereby limiting the unlocking function of the inner opening rocker arm 7, and an auxiliary locking wall torsion spring is also provided on the auxiliary locking arm 8, which has a similar function to other return torsion springs and can return the auxiliary locking arm 8 to its initial position, which will not be repeated here.

[0034] Furthermore, an electromagnet 9 is also provided on the inner wall of the front lower shell 12. The electromagnet 9 includes an auxiliary drive arm 91 and a movable part 92 that can be telescopically movable. The auxiliary drive arm 91 is fixed to the side of the electromagnet 9 away from the movable part 92. The movable part 92 can be fixed by suction with the end of the worm 16 after the electromagnet 9 is energized, so that the electromagnet 9 and the worm 16 are combined as a whole. At this time, the electromagnet 9 can drive the auxiliary drive arm 91 to rotate with the worm 16. The auxiliary locking arm 8 is integrally formed with an auxiliary drive plate 81 in the circumferential direction, so that the auxiliary locking arm 8 is L-shaped as a whole. In the initial state, the auxiliary drive arm 91 overlaps with the auxiliary drive plate 81. When the auxiliary drive arm 91 swings, it can drive the auxiliary drive plate 81 to swing. After the auxiliary drive plate 81 swings, it drives the auxiliary locking arm 8 to swing. After the auxiliary locking arm 8 swings, it overlaps with the unlocking plate 71. At this time, the unlocking plate 71 is restricted by the auxiliary locking arm 8 and cannot swing, so that the unlocking function of the inner opening rocker arm 7 fails.

[0035] At this time, when the inner opening rocker arm 7 is pulled in the car, the auxiliary locking arm 8 will limit the swing of the inner opening rocker arm 7 by abutting against the unlocking plate 71, so the door cannot be unlocked by pulling the inner handle in the car. The power supply of the electromagnet 9 can be directly controlled by the button on the main driver's side, or directly set in advance by the vehicle system. If the co-driver wants to unlock the door by pulling the inner opening handle during the driving process of the car, or the co-driver accidentally pulls the inner opening handle, the door will be directly unlocked. At this time, if the co-driver pulls the inner opening handle again, the door will be directly opened. This design allows the passenger on the co-driver to unlock and open the right door at will. In some extreme cases, there is a risk that the co-driver opens the door and falls out of the car. When the main driver needs to keep the co-driver passenger in the car all the time, he can actively press the button on the main driver's side to control the power supply of the electromagnet 9. At this time, the co-driver cannot unlock the door by pulling the inner opening handle, thereby reducing the occurrence of accidents.

[0036] The implementation principle of a right front door lock of a car in the embodiment of the present application is as follows: the motor 15 can directly control the swing of the locking arm 3 through the meshing worm 16 and the locking swing arm 2 to realize the electric locking or unlocking operation of the door; the lock cylinder rotating arm 52 can be driven to swing by a key from the outside, thereby driving the locking transmission arm 5 to slide, and then driving the locking swing arm 2 to swing through the locking transmission arm 5, thereby realizing the mechanical locking or unlocking operation of the door; the backup locking knob 132 can also be directly rotated to drive the locking arm 3 to swing, thereby locking the door Locking operation; the outward-opening rocker arm 6 indirectly drives the lock tongue 18 to swing by directly driving the opening hook 4 to move, thereby opening the vehicle door; the inner-opening rocker arm 7 drives the locking rocker arm 2 to swing once through the unlocking plate 71 to unlock the vehicle door, and can also drive the opening rocker arm 133 to swing once through the inner-opening card plate 72 to open the vehicle door; after the electromagnet 9 is energized, it drives the auxiliary locking arm 8 to swing through the auxiliary driving arm 91, and the auxiliary locking arm 8 overlaps the unlocking plate 71 to achieve the locking operation of the inner-opening rocker arm 7.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A right front door lock for an automobile, comprising a housing, a motor and a worm, wherein the motor and the worm are both arranged in the housing, and the worm is coaxially fixed with the output shaft of the motor, and is characterized in that: The housing is also provided with A locking swing arm is rotatably connected to the housing, and a worm gear is provided on a circumferential side wall of the locking swing arm, and the worm gear is meshed with the worm; The card plate and the lock tongue are both rotatably connected to the housing, and the lock tongue engages or disengages with the card plate when swinging to achieve locking or unlocking of the door; A locking assembly is used to impose or release restrictions on the swing of the lock tongue when the locking swing arm swings.

2. The automobile right front door lock according to claim 1, characterized in that: The locking assembly includes a locking arm and an opening hook, the opening hook is slidably connected to the shell, and the opening hook overlaps with the lock tongue, so that the lock tongue can be driven to swing when the opening hook moves, the locking arm is rotationally connected to the shell, and the rotation axis is perpendicular to the rotation axis of the locking swing arm, and the locking arm applies or releases restrictions on the movement of the opening hook when it swings, and a driving slot is circumferentially provided on the locking arm, and a driving protrusion is provided on the circumferential side wall of the locking swing arm, and the driving protrusion is clamped in the driving slot.

3. The automobile right front door lock according to claim 2, characterized in that: The locking arm is provided with a locking slot, and the side wall of the opening hook is provided with a locking protrusion. When the locking arm swings, the locking protrusion is engaged in the locking slot to limit the movement of the opening hook.

4. The automobile right front door lock according to claim 2, characterized in that: A locking transmission arm is slidably connected in the shell, a transmission slot is provided at one end of the locking transmission arm, and a lock core rotating arm is hinged at the other end. The lock core rotating arm is rotatably connected in the shell, and the driving protrusion is simultaneously engaged in the transmission slot. When the lock core rotating arm swings, the locking transmission arm drives the locking swing arm to swing to achieve mechanical locking.

5. The automobile right front door lock according to claim 2, characterized in that: A backup locking knob is rotatably connected in the shell, and a backup locking block is provided on the circumferential side wall of the backup locking knob. When the backup locking knob is rotated, the backup locking block swings and pushes the locking arm to swing to achieve door locking.

6. The automobile right front door lock according to claim 3, characterized in that: An outward-opening rocker arm is provided in the shell, one end of the outward-opening rocker arm is rotatably connected to the shell, and the other end extends out of the shell. An opening groove is provided on the shell for the outward-opening rocker arm to move. The middle section of the outward-opening rocker arm abuts against the outer wall of the locking protrusion. When the outward-opening rocker arm swings, the opening hook is driven to move through the locking protrusion. An outward-opening tension spring is provided on the side of the outward-opening rocker arm away from the locking protrusion. One end of the outward-opening tension spring is connected to the inner wall of the shell, and the other end is connected to the side wall of the outward-opening rocker arm, which is used for returning the outward-opening rocker arm to its initial position.

7. The automobile right front door lock according to claim 2, characterized in that: An inner opening rocker arm is provided inside the shell, which is rotatably connected to the shell, and the rotation axis is parallel to the axis of the locking rocker arm. An unlocking plate is provided on the inner opening rocker arm, and an unlocking protrusion is provided on the circumferential side wall of the locking rocker arm. When the inner opening rocker arm swings, the unlocking plate overlaps the unlocking protrusion to drive the locking rocker arm to swing, thereby unlocking the vehicle door.

8. The automobile right front door lock according to claim 7, characterized in that: The inner opening rocker arm is provided with an inner opening card plate, and the inner opening card plate and the unlocking plate are distributed in a divergent shape along the axis of the inner opening rocker arm. An opening rocker arm is provided in the shell, and one end of the opening rocker arm is rotatably connected in the shell, and the rotation axis is perpendicular to the axis of the inner opening rocker arm. The other end of the opening rocker arm extends to overlap the inner opening card plate, and at the same time, the middle part of the opening rocker arm is rotatably connected to the opening hook.

9. The automobile right front door lock according to claim 7, characterized in that: An auxiliary locking arm is rotatably arranged in the shell, and the rotation axis is perpendicular to the rotation axis of the inner opening rocker arm. The auxiliary locking arm can abut against the unlocking plate after swinging to limit the movement of the unlocking plate. An auxiliary locking structure is also provided in the shell for driving the auxiliary locking arm to swing. An auxiliary locking wall torsion spring is also provided in the shell for returning the auxiliary locking arm to its initial position.

10. The automobile right front door lock according to claim 9, characterized in that: The auxiliary locking structure includes an electromagnet and an auxiliary driving arm. When the electromagnet is energized, it is attracted and fixed to the end of the worm. The auxiliary driving arm is fixed to the side of the electromagnet away from the worm. An auxiliary driving plate is circumferentially provided on the auxiliary locking arm. When the auxiliary driving arm swings, it can overlap with the auxiliary driving plate to cause the auxiliary locking arm to swing.

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