Door lock and vehicle

Abstract

The present invention discloses a door lock and a vehicle. The door lock includes: a primary lock including an inner-opening connecting arm, an inner-opening rocker arm, and a transmission pin. The inner-opening connecting arm and the inner-opening rocker arm are pivotally mounted on the housing of the door lock. The inner-opening connecting arm is provided with a first groove extending in a first direction. The inner-opening rocker arm is provided with a second groove, and the second groove includes a first sub-groove and a second sub-groove. The first end of the first sub-groove is connected to the second end of the second sub-groove. Both ends of the transmission pin extend into the first groove and the second groove respectively; a secondary lock is used to drive the transmission pin to move; when the transmission pin is located at the second end of the first sub-groove, the inner-opening connecting arm and the inner-opening rocker arm are linked through the transmission pin around their respective pivot axes; when the transmission pin is located at the first end of the first sub-groove and the inner-opening rocker arm rotates in the unlocking direction, the second sub-groove moves to cooperate with the transmission pin. For the door lock of the present invention, the secondary lock can lock or unlock the primary lock, which can avoid accidental operations on the door handle by children in the vehicle, and the riding safety is relatively high.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle manufacturing, and more particularly to a door lock and a vehicle having the door lock. Background Art

[0002] With the increasing concern of parents and families about child safety, the child lock function has gradually spread from high-end vehicle configurations to ordinary household vehicle configurations. Currently, the structure of ordinary child locks is relatively complex, with many components, and the transmission process is complicated and has a high failure rate, leaving room for improvement. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, an object of the present invention is to provide a door lock with a simple structure that can achieve locking and unlocking of the child lock.

[0004] The door lock according to an embodiment of the present invention includes: a primary lock, the primary lock includes: an inner-opening connecting arm, an inner-opening rocker arm, and a transmission pin. The inner-opening connecting arm and the inner-opening rocker arm are pivotally mounted on the housing of the door lock. The inner-opening connecting arm is provided with a first groove extending in a first direction, and the inner-opening rocker arm is provided with a second groove. The second groove includes a first sub-groove extending in the first direction and a second sub-groove provided around the pivot axis of the inner-opening rocker arm. The first end of the first sub-groove is connected to the second end of the second sub-groove, and both ends of the transmission pin extend into the first groove and the second groove respectively; a secondary lock, the secondary lock is used to drive the transmission pin to move along the first groove and the first sub-groove; wherein, when the transmission pin is located at the second end of the first sub-groove, the inner-opening connecting arm and the inner-opening rocker arm are linked through the transmission pin around their respective pivot axes; when the transmission pin is located at the first end of the first sub-groove and the inner-opening rocker arm rotates in the unlocking direction, the second sub-groove moves to cooperate with the transmission pin, and the movements of the inner-opening connecting arm and the inner-opening rocker arm are separated.

[0005] For the door lock according to an embodiment of the present invention, the secondary lock can drive the transmission pin to move in the first groove and the first sub-groove to perform secondary locking or unlocking of the primary lock. Thus, it is possible to prevent children in the vehicle from accidentally operating the door handle, and the riding safety is relatively high.

[0006] For the door lock according to an embodiment of the present invention, the pivot axis of the inner-opening connecting arm coincides with the pivot axis of the inner-opening rocker arm and is perpendicular to the first direction.

[0007] For the door lock according to an embodiment of the present invention, the pivot axis of the inner-opening connecting arm intersects the axis in the length direction of the first groove, and the pivot axis of the inner-opening connecting arm is spaced apart from and opposite to the first end of the first groove.

[0008] A door lock according to an embodiment of the present invention, the first end of the first groove is disposed opposite to the first end of the first sub-groove, the second end of the first groove is disposed opposite to the second end of the first sub-groove, the transmission pin includes a first sub-pin and a second sub-pin coaxially arranged, the first sub-pin extends into the first groove, and the second sub-pin extends into the first sub-groove.

[0009] A door lock according to an embodiment of the present invention, the second sub-groove is arc-shaped, and the center of the second sub-groove is located on the pivot axis of the inner opening rocker arm.

[0010] A door lock according to an embodiment of the present invention, the secondary lock includes a driving device and a secondary lock push rod, the driving device is power-coupled to the secondary lock push rod for driving the secondary lock push rod to move in a first direction, and the secondary lock push rod cooperates with the transmission pin to drive the transmission pin to move in the first direction.

[0011] A door lock according to an embodiment of the present invention, the secondary lock push rod includes: a push rod body, the driving device is power-coupled to the push rod body; a claw, the claw is connected to the push rod body, the claw defines a card slot that opens in a direction away from the push rod body, the transmission pin extends into the card slot, and the claw is used to drive the transmission pin to move in the first direction.

[0012] A door lock according to an embodiment of the present invention, the claw includes a first arm and a second arm oppositely arranged in the first direction, and the free ends of the first arm and the second arm are both provided with guiding surfaces that extend obliquely away from each other.

[0013] A door lock according to an embodiment of the present invention further includes: a first limit pin and a second limit pin, both the first limit pin and the second limit pin are installed on the housing of the door lock, the push rod body is provided with a first guiding hole and a second guiding hole, both the first guiding hole and the second guiding hole extend in the first direction, the first limit pin penetrates through the first guiding hole, and the second limit pin penetrates through the second guiding hole.

[0014] A door lock according to an embodiment of the present invention, the axis of the first guiding hole in the length direction is parallel and spaced apart from the axis of the second guiding hole in the length direction.

[0015] A door lock according to an embodiment of the present invention, the first guiding hole narrows inward from both ends to the middle, and the second guiding hole is oblong.

[0016] A door lock according to an embodiment of the present invention, the push rod body is provided with a plurality of weight-reducing holes spaced apart along the length direction.

[0017] According to a vehicle door lock of one embodiment of the present invention, the driving device includes a power source and a transmission member, the output end of the power source is dynamically coupled to the input end of the transmission member, and the output end of the transmission member is dynamically coupled to the push rod body.

[0018] According to a vehicle door lock according to an embodiment of the present invention, the transmission member includes: an input turbine and an output gear, the input turbine and the output gear are coaxially arranged, a worm is provided at the output end of the power source, the input turbine is dynamically coupled to the worm, a rack is provided at the end of the push rod body away from the transmission pin, and the output gear and the rack are dynamically coupled.

[0019] According to a vehicle door lock according to an embodiment of the present invention, the shell includes a first shell and a second shell, the inward opening connecting arm and the inward opening rocker arm can be pivotally mounted on the first shell, the driving device and the secondary lock push rod are both mounted on the second shell, the second shell is buckled with the second shell, and the transmission pin extends into the slot during the buckling process.

[0020] The present invention also provides a vehicle.

[0021] The vehicle according to the embodiment of the present invention is provided with the door lock described in any one of the above embodiments.

[0022] The advantages of the vehicle and the above-mentioned door lock over the prior art are the same and will not be repeated here.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 is an exploded view of a door lock according to an embodiment of the present invention;

[0026] Figure 2 is a schematic structural diagram of a door lock in a locked state according to an embodiment of the present invention;

[0027] Figure 3 is a schematic structural diagram of a vehicle door lock in an unlocked state according to an embodiment of the present invention;

[0028] Figure 4 is a perspective view of a door lock according to an embodiment of the present invention;

[0029] Figure 5 is a top view of a door lock according to an embodiment of the present invention;

[0030] Figures 6 - 7 It is an exploded view of a car door lock according to another embodiment of the present invention.

[0031] Reference numerals:

[0032] Car door lock 100,

[0033] Inner opening connecting arm 11, first groove 111, inner opening rocker arm 12, second groove 121, first sub-groove 122, second sub-groove 123, transmission pin 13,

[0034] Push rod body 2, claw 21, card slot 22, first arm 23, second arm 24, guide surface 25, first guide hole 26, second guide hole 27, weight reduction hole 28, rack 29,

[0035] First limit pin 31, second limit pin 32, outer opening rocker arm 33, outer opening connecting arm 34, locking arm 35, locking tongue 36, outer opening rocker arm pin 37,

[0036] Drive device 4, power source 41, worm 42, input turbine 43, output gear 44,

[0037] Housing 5, first housing 51, second housing 52. Detailed implementation manners

[0038] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0039] Refer to Figures 1 - 5 Describe the car door lock 100 according to an embodiment of the present invention. The car door lock 100 can implement the locking and unlocking of the child lock of the vehicle. When there are children in the car, the child lock can be locked, and when the child lock is locked, the vehicle occupants cannot open the door through the inner opening handle. Thus, it can prevent children from accidentally opening the door and causing unnecessary dangerous accidents, improve the riding safety, and the structure of the car door lock 100 is simple and the locking state is stable.

[0040] As Figures 1 - 5 shown, the car door lock 100 according to an embodiment of the present invention includes: a primary lock and a secondary lock.

[0041] As Figure 1As shown in the figure, the inside-opening lock includes an inside-opening connecting arm 11, an inside-opening rocker arm 12, and a transmission pin 13. The inside-opening connecting arm 11 is pivotally mounted on the housing 5 of the vehicle door lock 100, that is, the inside-opening connecting arm 11 can rotate relative to the housing 5 of the vehicle door lock 100. The inside-opening rocker arm 12 is pivotally mounted on the housing 5 of the vehicle door lock 100, that is, the inside-opening rocker arm 12 can rotate relative to the housing 5 of the vehicle door lock 100.

[0042] It should be noted that the inside-opening rocker arm 12 is connected to the inside-opening handle of the vehicle door lock 100. When the vehicle door personnel drive the inside-opening handle, the inside-opening handle pulls the inside-opening rocker arm 12 to move. The inside-opening connecting arm 11 is connected to the inside-opening unlocking mechanism of the vehicle door lock 100. Driving the inside-opening connecting arm 11 to move can unlock the vehicle door lock 100. The inside-opening connecting arm 11 and the inside-opening rocker arm 12 can transmit the driving force through the transmission pin 13. In this way, when the vehicle occupants open the inside-opening handle, the driving force can be transmitted to the inside-opening unlocking mechanism through the inside-opening handle, the inside-opening rocker arm 12, the transmission pin 13, and the inside-opening connecting arm 11 to achieve the opening of the vehicle door.

[0043] As Figure 1 shown in the figure, the inside-opening connecting arm 11 is provided with a first slot 111 extending in the first direction. The inside-opening rocker arm 12 is provided with a second slot 121. The second slot 121 includes a first sub-slot 122 and a second sub-slot 123. The first sub-slot 122 extends in the first direction, that is, both the first sub-slot 122 and the first slot 111 extend in the first direction. The second sub-slot 123 is around the pivot axis of the inside-opening rocker arm 12. The first end of the first sub-slot 122 is connected to the second end of the second sub-slot 123, that is, the first sub-slot 122 and the second sub-slot 123 are connected. Among them, both the first slot 111 and the first sub-slot 122 can be oblong holes, and the second sub-slot 123 can be an arc-shaped oblong hole.

[0044] Both ends of the transmission pin 13 extend into the first slot 111 and the second slot 121 respectively. As Figure 1 shown in the figure, the transmission pin 13 includes a first sub-pin and a second sub-pin arranged coaxially. The first sub-pin extends into the first slot 111, and the second sub-pin extends into the second slot 121. And the axes of the first sub-pin and the second sub-pin are both parallel and spaced apart from the pivot axis of the inside-opening rocker arm 12. The axes of the first sub-pin and the second sub-pin are both parallel and spaced apart from the pivot axis of the inside-opening connecting arm 11.

[0045] In this way, when the inner opening rocker arm 12 rotates around the pivot axis, if the second sub-pin is located in the first sub-slot 122, the inner opening rocker arm 12 can drive the second sub-pin to rotate around the pivot axis of the inner opening rocker arm 12, and when the inner opening rocker arm 12 drives the second sub-pin to move, the first sub-pin and the second sub-pin move synchronously, so that the first sub-pin drives the inner opening connecting arm 11 to move to unlock the door lock 100; if the second sub-pin is located in the second sub-slot 123, when the inner opening rocker arm 12 rotates, it will avoid the transmission pin 13 through the second sub-slot 123, thereby, the rotation of the inner opening rocker arm 12 does not drive the transmission pin 13 to move, that is, the transmission pin 13 cannot transmit the driving force of the inner opening rocker arm 12 to the inner opening connecting arm 11, and the door lock 100 is in a locked state.

[0046] The secondary lock is used to drive the transmission pin 13 to move along the first groove 111 and the first sub-groove 122, that is, the secondary lock can drive the transmission pin 13 to move along the first direction. The secondary lock can be driven by a motor, and the motor can be connected to the control system of the whole vehicle. Therefore, the driver can electrically control the secondary lock to realize automatic driving of the transmission pin 13.

[0047] Among them, Figure 3 As shown, when the driving pin 13 is located at the second end of the first sub-slot 122, that is, the driving pin 13 is located at the right end of the first sub-slot 122 ( Figure 3 The inner opening connecting arm 11 and the inner opening rocker arm 12 are linked together around their respective pivot axes through the transmission pin 13, and the second end of the first sub-groove 122 is the end of the first sub-groove 122 away from the second sub-groove 123, that is, when the transmission pin 13 is located at the end of the first sub-groove 122 away from the second sub-groove 123, the driving force of the inner opening rocker arm 12 can be transmitted to the inner opening connecting arm 11 through the transmission pin 13. At this time, the primary lock is in an unlocked state, that is, the inner opening rocker arm 12 can drive the inner opening connecting arm 11 to move through the transmission pin 13 to realize the opening of the door lock 100, so that the people in the car can open the door lock 100 through the manual inner opening handle.

[0048] like Figure 2 As shown, the driving pin 13 is located at the first end of the first sub-slot 122, that is, the driving pin 13 is located at the left end of the first sub-slot 122 ( Figure 2When the inner opening rocker arm 12 rotates in the unlocking direction at the left end of the middle part, the second sub-slot 123 moves to cooperate with the transmission pin 13, and the movement of the inner opening connecting arm 11 is separated from that of the inner opening rocker arm 12. The first end is the end of the first sub-slot 122 close to the second sub-slot 123, and the first end of the first sub-slot 122 communicates with the second sub-slot 123. Thus, when the transmission pin 13 is located at the end of the first sub-slot 122 close to the second sub-slot 123, the transmission pin 13 is located in the second sub-slot 123, and the extending direction of the second sub-slot 123 is the same as the direction in which the inner opening rocker arm 12 rotates around its pivot axis. At this time, the primary lock is in the locked state. When the inner opening rocker arm 12 rotates, the transmission pin 13 moves relative to the inner opening rocker arm 12 within the second sub-slot 123, so that there is no power transmission between the inner opening rocker arm 12 and the inner opening connecting arm 11. In this way, the vehicle occupants cannot open the door through the inner opening handle, thereby preventing the accidental operation of the inner opening handle when there are children in the vehicle and avoiding the accidental opening of the door during the driving of the vehicle, improving the driving safety of the vehicle and ensuring the safe riding of the vehicle occupants.

[0049] In this way, by driving the transmission pin 13 to move in the first direction through the secondary lock, the secondary locking or unlocking of the primary lock can be controlled. When there are children in the vehicle, the secondary lock locks the primary lock, and the primary lock cannot be directly opened through the inner opening handle; when there are no children in the vehicle, the secondary lock unlocks the primary lock, and the primary lock can be opened through the inner opening handle, improving the riding safety.

[0050] Thus, the primary lock can be used as the inner door lock of the vehicle, and the secondary lock can be used as the child lock of the vehicle. The secondary lock can be used to control the locking state of the primary lock, that is, when the secondary lock is in the locked state, the door cannot be opened through the primary lock, and when the secondary lock is in the unlocked state, the door can be opened through the primary lock.

[0051] According to the door lock 100 of the embodiment of the present invention, the secondary lock can drive the transmission pin 13 to move within the first slot 111 and the first sub-slot 122 to perform secondary locking or unlocking of the primary lock. Thus, the accidental operation of the vehicle door handle by children in the vehicle can be avoided, and the riding safety is relatively high.

[0052] In some embodiments, the pivot axis of the inner opening connecting arm 11 coincides with the pivot axis of the inner opening rocker arm 12, and the pivot axis of the inner opening connecting arm 11 is perpendicular to the first direction. In this way, the inner opening rocker arm 12 and the inner opening connecting arm 11 rotate at the same angle, and when the inner opening rocker arm 12 rotates, the inner opening rocker arm 12 can drive the inner opening connecting arm 11 through the transmission pin 13 to achieve synchronous movement of the three, thereby realizing the opening of the door lock 100, improving the rationality of the structural design of the door lock 100, and the coaxial installation of the inner opening connecting arm 11 and the inner opening rocker arm 12 can reduce the overall assembly difficulty of the door lock 100.

[0053] In some embodiments, the pivot axis of the inward-opening connecting arm 11 intersects the axis in the length direction of the first slot 111, and the pivot axis of the inward-opening connecting arm 11 is spaced apart from and opposite to the first end of the first slot 111. As shown in Figure 1 , the extending direction of the first slot 111 is perpendicular to the pivot axis of the inward-opening connecting arm 11. The first end of the first slot 111 is the end close to the inward-opening connecting arm 11, that is, the axis of the first slot 111 is spaced apart from the axis of the inward-opening connecting arm 11. In this way, when the transmission pin 13 rotates around the pivot axis of the inward-opening rocker arm 12, the transmission pin 13 drives the inward-opening connecting arm 11 to rotate. Thus, when the first sub-pin of the transmission pin 13 is located in the first slot 111 and the second sub-pin is located in the second sub-slot 123, the driving force output by the inward-opening rocker arm 12 can drive the inward-opening connecting arm 11 to rotate. At this time, the primary lock of the door lock 100 is in the unlocked state, and the unlocking of the door lock 100 can be realized.

[0054] In some embodiments, the first end of the first slot 111 is disposed opposite to the first end of the first sub-slot 122, and the second end of the first slot 111 is disposed opposite to the second end of the first sub-slot 122. The transmission pin 13 includes a first sub-pin and a second sub-pin disposed coaxially. The first sub-pin extends into the first slot 111, and the second sub-pin extends into the first sub-slot 122. In this way, when the first sub-pin is located at the first end of the first slot 111, the second sub-pin is located at the first end of the first sub-slot 122. And when the first sub-pin moves from the first end to the second end in the first slot 111 and the second sub-pin moves from the first end to the second end in the first sub-slot 122, the moving directions and speeds of the first sub-pin and the second sub-pin are the same during the movement. Thus, the control state of the secondary lock on the primary lock can be switched from the unlocked state to the locked state. The structures of the inward-opening connecting arm 11 and the inward-opening rocker arm 12 are simple, and the structural design is reasonable, and it is easy to realize the switching of the unlocked state.

[0055] In some embodiments, as shown in Figure 1 , the second sub-slot 123 is arc-shaped, and the center of the second sub-slot 123 is located on the pivot axis of the inward-opening rocker arm 12. In this way, when the transmission pin 13 is located in the second sub-slot 123, the transmission pin 13 does not contact the inner wall of the second sub-slot 123 during the rotation of the inward-opening rocker arm 12. The transmission pin 13 rotates around the pivot axis relative to the inward-opening rocker arm 12, and the second sub-slot 123 just avoids the transmission pin 13. At this time, the rotation of the inward-opening rocker arm 12 does not drive the inward-opening connecting arm 11 to rotate, and the primary lock is in the locked state, realizing the locking action of the child lock. The structural design of the inward-opening connecting arm 11 is more reasonable and practical.

[0056] In some embodiments, the secondary lock includes a driving device 4 and a secondary lock push rod. The driving device 4 is power-coupled to the secondary lock push rod. The driving device 4 is configured to drive the secondary lock push rod to move in a first direction. The secondary lock push rod cooperates with a transmission pin 13 to drive the transmission pin 13 to move in the first direction. Wherein, the driving device 4 may include a driving motor, and the driving force output by the driving motor can be used to drive the secondary lock push rod to move. During the movement of the secondary lock push rod, the transmission pin 13 is driven to move in the first direction, and by adjusting the forward and reverse rotation of the driving motor, the secondary lock push rod and the transmission pin 13 can move forward or backward in the first direction, thereby realizing the switching between the locked state and the unlocked state of the secondary lock to the primary lock.

[0057] Wherein, the driving device 4 can be connected to the control system of the whole vehicle. The driver and passengers can output a control signal for the secondary lock through the control system, so that the secondary lock can be switched between the locked state and the unlocked state. The control process is simple, the operation difficulty is low, and at the same time, the intelligent degree of the control of the door lock 100 is improved.

[0058] As Figure 1 shown, the secondary lock push rod includes a push rod body 2 and a claw 21.

[0059] The driving device 4 is power-coupled to the push rod body 2. The claw 21 is connected to the push rod body 2. The extending direction of the claw 21 is perpendicular to the extending direction of the push rod body 2. The claw 21 defines a card slot 22 that opens in a direction away from the push rod body 2. The transmission pin 13 extends into the card slot 22. The opening direction of the card slot 22 is perpendicular to the first direction. The claw 21 is configured to drive the transmission pin 13 to move in the first direction. In this way, when the driving device 4 drives the push rod body 2 to move in the first direction, the push rod body 2 drives the claw 21 to move. The transmission pin 13 is stuck in the card slot 22 of the claw 21, and the inner wall of the claw 21 presses against the transmission pin 13 and drives the transmission pin 13 to move in the first direction, realizing the switching between the locked state and the unlocked state of the child lock.

[0060] The claw 21 includes a first arm 23 and a second arm 24 that are oppositely arranged in the first direction. The first arm 23 and the second arm 24 define the card slot 22. The transmission pin 13 extends between the first arm 23 and the second arm 24. When the push rod body 2 moves in the first direction, the first arm 23 or the second arm 24 pushes the transmission pin 13 to move in the first direction.

[0061] Wherein, the free ends of the first arm 23 and the second arm 24 are both provided with a guiding surface 25. The guiding surfaces 25 extend obliquely in a direction away from each other. Thus, the first arm 23 and the second arm 24 define a flared card slot 22. It should be noted that, as Figure 6 and Figure 7As shown, the housing 5 of the door lock 100 includes a first housing 51 and a second housing 52. The inner-opening connecting arm 11 and the inner-opening rocker arm 12 are both installed on the first housing 51. The inner-opening rocker arm 12 is fixed to the first housing 51 through an inner-opening rocker arm pin. Thus, the transmission pin 13 is connected to the first housing 51 through the inner-opening connecting arm 11 and the inner-opening rocker arm 12. The secondary lock push rod and the driving device 4 are both installed on the second housing 52, and the card slot 22 of the push rod body 2 faces upward and is open. The first housing 51 is buckled with the second housing, and during the buckling process, the transmission pin 13 extends into the card slot 22. For example, the first housing 51 is adapted to be buckled with the second housing 52 from top to bottom, and during the buckling process, the transmission pin 13 extends into the card slot 22 from top to bottom. In this way, when assembling the door lock 100, the transmission pin 13 extends into the card slot 22 from the open end of the card slot 22, that is, the transmission pin 13 extends from the free ends of the first arm 23 and the second arm 24 to between the first arm 23 and the second arm 24. The transmission pin 13 can enter the card slot 22 along the guiding surface 25 of the first arm 23 or the guiding surface 25 of the second arm 24, increasing the tolerance of the position deviation of the transmission pin 13 from the card slot 22, greatly reducing the difficulty of installing the transmission pin 13 into the card slot 22, and more accurately and quickly buckling the first housing 51 and the second housing 52, which is convenient for realizing the overall assembly of the door lock 100.

[0062] In some embodiments, as Figure 1 shown, the door lock 100 further includes a first limit pin 31 and a second limit pin 32. The first limit pin 31 and the second limit pin 32 are both installed on the housing 5 of the door lock 100, and both the first limit pin 31 and the second limit pin 32 are relatively fixed to the housing 5. The push rod body 2 is provided with a first guiding hole 26 and a second guiding hole 27. The first guiding hole 26 and the second guiding hole 27 both extend along a first direction. The first limit pin 31 penetrates through the first guiding hole 26, and the second limit pin 32 penetrates through the second guiding hole 27. In this way, when the push rod body 2 moves along the first direction, the first limit pin 31 moves relative to the push rod body 2 in the first guiding hole 26, and the second limit pin 32 moves relative to the push rod body 2 in the second guiding hole 27. The first limit pin 31 and the second limit pin 32 can play a role in guiding and limiting the push rod body 2, ensuring that the push rod body 2 can accurately move along the first direction, avoiding the actual movement direction of the push rod body 2 from deviating from the designed direction, improving the accuracy of controlling unlocking and locking of the door lock 100, and making the overall structural design of the door lock 100 more reasonable.

[0063] In some embodiments, the axis along the length direction of the first guiding hole 26 is parallel and spaced apart from the axis along the length direction of the second guiding hole 27, that is, both the first guiding hole 26 and the second guiding hole 27 extend along a first direction, and the first guiding hole 26 and the second guiding hole 27 are spaced apart in a direction perpendicular to the first direction, as Figure 1As shown in the figure, the push rod body 2 includes at least two parallel sections, the first guide hole 26 and the second guide hole 27 are respectively arranged in the two parallel sections, and the two parallel sections are staggered along the width direction. Therefore, it can be ensured that the push rod can move stably along the first direction, and the transmission pin 13 can accurately and reliably switch the control state of the child lock, thereby improving the reliability of the door lock 100.

[0064] Among them, the first guide hole 26 narrows inward from both ends to the middle, the second guide hole 27 is an oblong hole, the second limit pin 32 can move relative to the push rod body 2 along the first direction in the second guide hole 27, the first limit pin 31 can move relative to the push rod body 2 along the first direction in the first guide hole 26, and the middle position of the first guide hole 26 can generate a smaller friction resistance with the first limit pin 31, that is, during the movement of the push rod body 2, a certain friction resistance needs to be overcome to enable the first limit pin 31 to switch from one end of the first guide hole 26 to the other end. In this way, the push rod body 2 can be prevented from spontaneously moving when not driven by the driving force of the driving device 4, thereby preventing the child lock from automatically locking or unlocking, and improving the reliability and safety of the door lock 100.

[0065] In one embodiment, the push rod body 2 is provided with a plurality of weight-reducing holes 28 spaced apart and distributed along the length direction. The weight-reducing holes 28 can reduce the weight of the overall structure of the push rod body 2, while saving the materials required for producing the push rod body 2 and reducing the cost.

[0066] In some embodiments, the driving device 4 includes a power source 41 and a transmission member. The output end of the power source 41 is power-coupled with the input end of the transmission member, and the output end of the transmission member is power-coupled with the push rod body 2. The power source 41 may include a driving motor. The output end of the driving motor is power-coupled with the input end of the transmission member. The driving force output by the driving motor can be transmitted to the push rod body 2 through the transmission member, thereby realizing the power output and transmission of the driving device 4, ensuring that the driving device 4 can accurately drive the push rod to move and realize the switching of the locked state and the unlocked state of the secondary lock.

[0067] In one embodiment, the transmission member includes an input turbine 43 and an output gear 44, the input turbine 43 and the output gear 44 are coaxially arranged, a worm 42 is provided at the output end of the power source 41, the input turbine 43 is power-coupled with the worm 42, a rack 29 is provided at the end of the push rod body 2 away from the transmission pin 13, and the output gear 44 is power-coupled with the rack 29. In this way, the driving force output by the power source 41 can be transmitted to the input turbine 43 through the worm 42, and output to the rack 29 by the output gear 44, and push the push rod body 2 to move along the first direction. Among them, the rotation of the power source 41 is converted into the linear motion of the push rod body 2 through the transmission member, so as to realize the unlocking and locking process of the child lock.

[0068] It should be noted that if Figure 7As shown, the primary lock further includes an outward-opening rocker arm 33, an outward-opening connecting arm 34, a locking arm 35, and a latch 36. The outward-opening rocker arm 33, the outward-opening connecting arm 34, the locking arm 35, and the latch 36 are all pivotally mounted on the second housing 52. Among them, the outward-opening rocker arm 33 is pivotally mounted on the second housing 52 through an outward-opening rocker arm pin 37 (second limit pin 32). The inward-opening connecting arm 11 is connected to the outward-opening rocker arm 33. The outward-opening rocker arm 33 is connected to the outward-opening connecting arm 34. The outward-opening connecting arm 34 is connected to the locking arm 35. The locking arm 35 is used to drive the latch 36 to lock or unlock. The latch 36 is pivotally mounted on the second housing 52 through a latch pin (first limit pin 31).

[0069] Therefore, the unlocking process of the primary lock is as follows: When the occupant inside the vehicle pulls the inward-opening handle, the inward-opening handle pulls the inward-opening rocker arm 12. The inward-opening rocker arm 12 drives the inward-opening connecting arm 11 through the transmission pin 13. The inward-opening rocker arm 12 and the inward-opening connecting arm 11 rotate clockwise along the inward-opening rocker arm pin. The inward-opening connecting arm 11 drives the outward-opening rocker arm 33. The outward-opening rocker arm 33 rotates clockwise along the outward-opening rocker arm pin 37. Thus, the outward-opening rocker arm 33 drives the outward-opening connecting arm 34, and the outward-opening connecting arm 34 drives the locking arm 35, so that the locking arm 35 rotates clockwise along the locking arm pin, thereby disengaging the blocking of the latch 36, and further unlocking the vehicle door lock 100.

[0070] The following describes the specific locking and unlocking processes of the child lock of the vehicle door lock 100 according to an embodiment of the present invention.

[0071] Locking process: When the vehicle door lock 100 receives a signal for locking the child lock, the drive motor of the power source 41 is powered on. The worm 42 of the drive motor drives the input turbine 43 to rotate. The rotation of the input turbine 43 drives the output gear 44 to rotate. Thus, the push rod body 2 is driven to perform a linear motion through the rack 29 provided on the push rod body 2. The push rod body 2 is further provided with a pawl 21. The pawl 21 drives the transmission pin 13 to move further. The transmission pin 13 is disposed between the inward-opening connecting arm 11 and the inward-opening rocker arm 12. And the first groove 111 and the second groove 121 are provided on the inward-opening connecting arm 11 and the inward-opening rocker arm 12. When the transmission pin 13 moves to the left side of the first sub-groove 122 of the second groove 121 on the inward-opening rocker arm 12, the locking action of the child lock is achieved. At this time, the vehicle door cannot be unlocked and opened by pulling the inside handle.

[0072] Unlocking action: When the door lock 100 receives a signal for unlocking the child lock, the drive motor of the power source 41 is powered on. The drive motor drives the input turbine 43 to rotate. The rotation of the input turbine 43 drives the output gear 44 to rotate. Thereby, the push rod body 2 is driven to perform a linear motion through the rack 29 provided on the push rod body 2. The claw 21 on the push rod body 2 drives the transmission pin 13 to perform a linear motion. When the transmission pin 13 moves to the right side of the first sub-slot 122 of the second slot 121 on the inner opening rocker arm 12, at this time the child lock is unlocked. At this time, when unlocking through the door handle, effective unlocking can be achieved, thereby opening the door.

[0073] Assembly process of the door lock 100 according to an embodiment of the present invention: First, place the transmission pin 13 between the inner opening rocker arm 12 and the inner opening connecting arm 11, so that the first sub-pin and the second sub-pin of the transmission pin 13 are respectively placed in the first slot 111 of the inner opening connecting arm 11 and the first sub-slot 122 of the inner opening rocker arm 12. Then place it at the corresponding position of the first housing 51 and fix it on the first housing 51 through the inner opening rocker arm pin. Then fasten it and assemble it on the second housing 52 of the secondary lock push rod. Among them, since the card slot 22 of the claw 21 of the secondary lock push rod is in a flared shape, the tolerance of the position deviation of the transmission pin 13 from the card slot 22 can be increased more greatly. In this way, the first housing 51 and the second housing 52 can be fastened together more accurately and quickly, improving production efficiency and saving labor costs.

[0074] The present invention also proposes a vehicle.

[0075] According to the vehicle of the embodiment of the present invention, the door lock 100 of any one of the above embodiments is provided. The driver and passengers can drive the push rod body 2 to act by controlling the driving device 4 to realize the unlocking or locking of the child lock. The structure of the door lock 100 is simple, the control process is easy to implement, and both the locked state and the unlocked state are stable and reliable.

[0076] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0077] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A car door lock, characterized in that, Comprising: A primary lock, the primary lock comprising: an inboard opening connecting arm, an inboard opening rocker arm, and a transmission pin. The inboard opening connecting arm and the inboard opening rocker arm are pivotally mounted to the housing of the vehicle door lock. The inboard opening connecting arm is provided with a first groove extending in a first direction, and the inboard opening rocker arm is provided with a second groove. The second groove includes a first sub-groove extending in the first direction and a second sub-groove disposed around the pivot axis of the inboard opening rocker arm. The first end of the first sub-groove is connected to the second end of the second sub-groove, and both ends of the transmission pin extend into the first groove and the second groove respectively; A secondary lock, the secondary lock being configured to drive the transmission pin to move along the first groove and the first sub-groove; wherein, When the transmission pin is located at the second end of the first sub-groove, the inboard opening connecting arm and the inboard opening rocker arm are linked by the transmission pin about their respective pivot axes; When the transmission pin is located at the first end of the first sub-groove and the inboard opening rocker arm rotates in the unlocking direction, the second sub-groove moves to cooperate with the transmission pin, and the movements of the inboard opening connecting arm and the inboard opening rocker arm are separated; The first end of the first groove is disposed opposite to the first end of the first sub-groove, and the second end of the first groove is disposed opposite to the second end of the first sub-groove. The transmission pin includes a first sub-pin and a second sub-pin disposed coaxially. The first sub-pin extends into the first groove, and the second sub-pin extends into the first sub-groove; The second sub-groove is arc-shaped, and the center of the second sub-groove is located on the pivot axis of the inboard opening rocker arm.

2. The car door lock according to claim 1, characterized in that, The pivot axis of the inboard opening connecting arm coincides with the pivot axis of the inboard opening rocker arm and is perpendicular to the first direction.

3. The door lock according to claim 1, characterized in that The pivot axis of the inboard opening connecting arm intersects the axis in the length direction of the first groove, and the pivot axis of the inboard opening connecting arm is spaced apart from the first end of the first groove in an opposite manner.

4. The door lock according to any one of claims 1-3, characterized in that, The secondary lock includes a driving device and a secondary lock push rod. The driving device is power-coupled to the secondary lock push rod and is configured to drive the secondary lock push rod to move in the first direction. The secondary lock push rod cooperates with the transmission pin to drive the transmission pin to move in the first direction.

5. The door lock according to claim 4, characterized in that, The secondary lock push rod includes: A push rod body, the driving device being power-coupled to the push rod body; A claw, the claw being connected to the push rod body. The claw defines a card slot that opens in a direction away from the push rod body. The transmission pin extends into the card slot, and the claw is configured to drive the transmission pin to move in the first direction.

6. The door lock according to claim 5, characterized in that, The claw includes a first arm and a second arm disposed opposite to each other in the first direction. The free ends of the first arm and the second arm are each provided with a guiding surface that extends obliquely in a direction away from each other.

7. The door lock according to claim 5, characterized in that, Further comprising: A first limit pin and a second limit pin. The first limit pin and the second limit pin are both mounted to the housing of the vehicle door lock. The push rod body is provided with a first guiding hole and a second guiding hole. Both the first guiding hole and the second guiding hole extend in the first direction. The first limit pin penetrates through the first guiding hole, and the second limit pin penetrates through the second guiding hole.

8. The door lock according to claim 7, characterized in that, The axis in the length direction of the first guiding hole is parallel and spaced apart from the axis in the length direction of the second guiding hole.

9. The door lock according to claim 7, characterized in that, The first guide hole narrows inward from both ends to the middle, and the second guide hole is an oblong shape.

10. The door lock according to claim 5, characterized in that, The push rod body is provided with a plurality of weight-reducing holes which are spaced apart and distributed along the length direction.

11. The door lock according to claim 5, characterized in that, The driving device comprises a power source and a transmission member, wherein the output end of the power source is power-coupled with the input end of the transmission member, and the output end of the transmission member is power-coupled with the push rod body.

12. The door lock according to claim 11, characterized in that, The transmission member includes: an input turbine and an output gear, the input turbine and the output gear are coaxially arranged, a worm is provided at the output end of the power source, the input turbine is dynamically coupled with the worm, a rack is provided at one end of the push rod body away from the transmission pin, and the output gear is dynamically coupled with the rack.

13. The door lock according to claim 5, characterized in that, The shell includes a first shell and a second shell. The inward-opening connecting arm and the inward-opening rocker arm can be pivotally mounted on the first shell. The driving device and the secondary lock push rod are both mounted on the second shell. The first shell is snapped together with the second shell, and the transmission pin extends into the slot during the snapping process.

14. A vehicle, characterized in that, A vehicle door lock according to any one of claims 1 to 13 is provided.

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