Super lock of automobile sliding door
By designing the linkage mechanism and actuator of the super lock for car sliding doors, the problem of the inability to effectively prevent the inner handle from unlocking and opening the door in existing technologies has been solved, realizing the super lock function of the vehicle and improving the anti-theft and security of the vehicle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MAGNA AUTOMOTIVE PARTS (SUZHOU) CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-04-21
AI Technical Summary
The sliding doors of existing MPV models cannot effectively prevent the inner handle from unlocking after the vehicle is locked. This means that the super lock function cannot be used in the event of theft, and the vehicle cannot meet the high anti-theft level of some countries and regions, which affects insurance premiums.
A super lock for automotive sliding doors has been designed, including a linkage mechanism, an unlocking component, a locking mechanism, and an actuator. Through the cooperation of the inner opening link, the positioning link, and the locking pin, the actuator drives the locking pin to slide to the closed position, making it impossible for both the inner and outer handles to unlock, thus providing a super lock function.
It effectively prevents the car doors from being opened from the inside in the event of a vehicle theft, improving the anti-theft performance of the vehicle door locks and meeting high anti-theft level requirements.
Smart Images

Figure CN224149345U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle door lock technology, and in particular to a super lock for automobile sliding doors. Background Technology
[0002] Currently, the sliding doors of MPV models, after locking the vehicle, can only prevent the outer door handle from unlocking and opening the door. Pulling the inner door handle can trigger the unlocking action of the inner door locking mechanism, thus allowing the door to be opened. In other words, it cannot prevent the inner handle from unlocking and opening the door. Therefore, it cannot effectively prevent the door from being opened from the inside in the event of a theft. It does not have a superlock function (a superlock function means that when locked, both the inner and outer handles will be disabled, and the door cannot be opened by normal operation). It does not meet the high anti-theft level of some countries and regions, which will affect insurance premiums.
[0003] Therefore, there is an urgent need for a super lock for car sliding doors to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a super lock for car sliding doors, which can further enhance the anti-theft performance of vehicle door locks.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] This utility model provides a super lock for automotive sliding doors, comprising:
[0007] A linkage mechanism includes an inwardly opening link, a positioning link, and a locking pin. The inwardly opening link is hinged to the positioning link. One end of the positioning link has a locking groove. The locking groove includes a first elongated groove and a second elongated groove that are connected. The length direction of the first elongated groove and the length direction of the second elongated groove are set at an angle. One end of the inwardly opening link has a slot. The locking pin is placed in both the slot and the locking groove.
[0008] The unlocking component and the locking mechanism are provided. The locking mechanism is used to lock the rear door to the vehicle body. The unlocking component is connected between the other end of the inward opening link and the locking mechanism and can trigger the locking mechanism to unlock.
[0009] An actuator is provided to drive the locking pin to slide within the locking groove and has an open position for unlocking the locking mechanism and a closed position for locking the locking mechanism.
[0010] As a preferred technical solution of the above-mentioned super lock for sliding doors of automobiles, the linkage mechanism further includes a first link, the actuator is tractively connected to the first link, and can drive the first link to rotate so that the first link drives the lock stop pin to slide in the lock groove.
[0011] As a preferred technical solution of the aforementioned automotive sliding door super lock, the actuator includes a drive component, a worm gear, and a worm. The drive component is pulsatorically connected to the worm and can drive the worm to rotate. The worm gear is meshed with the worm. The first connecting rod is provided with a gear structure, and the worm gear is meshed with the gear structure.
[0012] As a preferred technical solution for the aforementioned automotive sliding door super lock, the driving component is a motor.
[0013] As a preferred technical solution for the aforementioned automotive sliding door super lock, the linkage mechanism further includes an elastic element, which is configured to limit the rotation angle of the first linkage.
[0014] As a preferred technical solution for the aforementioned super lock for automotive sliding doors, the elastic element is a torsion spring.
[0015] As a preferred technical solution of the aforementioned automotive sliding door super lock, the linkage mechanism further includes a second link, a pull rod, and an inward opening handle. The second link, the inward opening link, and the positioning link are hinged together. The second link has a sliding groove. One end of the pull rod is slidably disposed in the sliding groove, and the other end of the pull rod is connected to the inward opening handle. The other end of the positioning link is provided with a fixing pin, which can abut against the end of the second link near the inward opening handle.
[0016] As a preferred technical solution for the aforementioned automotive sliding door super lock, the linkage mechanism further includes an outward opening link, which is driven by the positioning link and can drive the positioning link to rotate.
[0017] As a preferred technical solution of the aforementioned automotive sliding door super lock, the unlocking component includes a first unlocking cable, the locking mechanism includes a rear door front lock, one end of the first unlocking cable is connected to the inward opening linkage, and the other end of the first unlocking cable is connected to the rear door front lock and can trigger the rear door front lock to unlock.
[0018] As a preferred technical solution of the aforementioned automotive sliding door super lock, the unlocking component further includes a second unlocking cable, and the locking mechanism further includes a rear door lock. One end of the second unlocking cable is connected to the inward opening linkage, and the other end of the second unlocking cable is connected to the rear door lock, and can trigger the rear door lock to unlock.
[0019] The beneficial effects of this utility model are as follows:
[0020] This utility model provides a super lock for a car sliding door. The super lock includes a linkage mechanism, an unlocking component, a locking mechanism, and an execution mechanism. The linkage mechanism includes an inward opening link, a positioning link, and a locking pin. The inward opening link is hinged to the positioning link. One end of the positioning link has a locking groove. The locking groove includes a first elongated groove and a second elongated groove that are connected. The length direction of the first elongated groove and the length direction of the second elongated groove are set at an angle. One end of the inward opening link has a slot. The locking pin is placed in both the slot and the locking groove. The locking mechanism is used to lock the rear door to the vehicle body. The unlocking component is connected between the other end of the inward opening link and the locking mechanism and can trigger the locking mechanism to unlock. The execution mechanism is used to drive the locking pin to slide in the locking groove and has an open position that can unlock the locking mechanism and a closed position that can lock the locking mechanism. With this configuration, the actuator can drive the lock pin to slide to the closed position, so that the lock pin only slides laterally with the second long slot and cannot push the inner opening linkage to rotate. That is, it cannot pull the unlocking component to trigger the locking mechanism to unlock. Both inner and outer release and door opening are ineffective, which has a super lock function and further ensures the security of the car door lock. Attached Figure Description
[0021] Figure 1 A partial structural diagram of the super lock for automotive sliding doors provided by this utility model. Figure 1 ;
[0022] Figure 2 A partial structural diagram of the super lock for automotive sliding doors provided by this utility model. Figure 2 ;
[0023] Figure 3 Schematic diagram of the linkage mechanism and actuator provided by this utility model Figure 1 ;
[0024] Figure 4 Schematic diagram of the linkage mechanism and actuator provided by this utility model Figure 2 ;
[0025] Figure 5 Schematic diagram of the linkage mechanism and actuator provided by this utility model Figure 3 ;
[0026] Figure 6 Schematic diagram of the linkage mechanism and actuator provided by this utility model Figure 4 ;
[0027] Figure 7 Schematic diagram of the linkage mechanism and actuator provided by this utility model Figure 5 ;
[0028] Figure 8 Schematic diagram of the linkage mechanism and actuator provided by this utility model Figure 6 ;
[0029] Figure 9 Schematic diagram of the linkage mechanism and actuator provided by this utility model Figure 7 ;
[0030] Figure 10 Schematic diagram of the linkage mechanism and actuator provided by this utility model Figure 8 ;
[0031] Figure 11 Schematic diagram of the linkage mechanism and actuator provided by this utility model Figure 9 ;
[0032] Figure 12 Schematic diagram of the linkage mechanism and actuator provided by this utility model Figure 10 ;
[0033] Figure 13 Schematic diagram of the linkage mechanism and actuator provided by this utility model Figure 10 one;
[0034] Figure 14 Schematic diagram of the linkage mechanism and actuator provided by this utility model Figure 10 two;
[0035] Figure 15 Schematic diagram of the linkage mechanism and actuator provided by this utility model Figure 10 three;
[0036] Figure 16 Schematic diagram of the linkage mechanism and actuator provided by this utility model Figure 10 Four.
[0037] in:
[0038] 1. Inward-opening connecting rod; 101. Slot;
[0039] 2. Positioning link; 201. Locking groove; 2011. First elongated groove; 2012. Second elongated groove;
[0040] 3. Locking pin; 4. First connecting rod;
[0041] 5. Actuator; 51. Drive component; 52. Worm gear; 53. Worm;
[0042] 6. Elastic components;
[0043] 7. Second connecting rod; 701. Slide groove;
[0044] 8. Pull rod; 9. Inward-opening handle; 10. Fixing pin; 11. Outward-opening connecting rod; 12. First connecting end; 13. Second connecting end; 14. Third connecting end. Detailed Implementation
[0045] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying 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 accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0046] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.
[0047] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and connections within two components or interactions between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0048] Unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0049] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0050] like Figures 1 to 16As shown, this embodiment provides a super lock for a car sliding door. The super lock includes: a linkage mechanism, an unlocking component, a locking mechanism, and an actuating mechanism 5. The linkage mechanism includes an inward-opening connecting rod 1, a positioning connecting rod 2, and a locking pin 3. The inward-opening connecting rod 1 is hinged to the positioning connecting rod 2. One end of the positioning connecting rod 2 has a locking groove 201. The locking groove 201 includes a first elongated groove 2011 and a second elongated groove 2012 that communicate with each other. The length direction of the first elongated groove 2011 is parallel to that of the second elongated groove 2012. The length of the linkage 12 is angled. One end of the inward-opening linkage 1 has a slot 101. The locking pin 3 is placed in both the slot 101 and the locking groove 201. The locking mechanism is used to lock the rear door to the vehicle body. The unlocking component is connected between the other end of the inward-opening linkage 1 and the locking mechanism, and can trigger the locking mechanism to unlock. The actuator 5 is used to drive the locking pin 3 to slide in the locking groove 201 and has an open position that can unlock the locking mechanism and a closed position that can lock the locking mechanism. With this configuration, the actuator 5 can drive the locking pin 3 to slide to the closed position, so that the locking pin 3 only slides laterally with the second long groove 2012 and cannot push the inward-opening linkage 1 to rotate, that is, it cannot pull the unlocking component to trigger the locking mechanism to unlock. Both inward and outward door opening are ineffective, which has a super lock function and further ensures the security of the door lock.
[0051] Alternatively, please refer to Figure 11 and Figure 12 As shown, the linkage mechanism also includes a first link 4. An actuator 5 is driven by the first link 4 and can drive the first link 4 to rotate, causing the first link 4 to slide the locking pin 3 within the locking groove 201. The actuator 5 includes a drive member 51, a worm gear 52, and a worm 53. The drive member 51 is driven by the worm gear 53 and can drive the worm gear 53 to rotate. The worm gear 52 is meshed with the worm gear 53. The first link 4 has a gear structure, and the worm gear 52 is meshed with the gear structure. Specifically, the drive member 51 is a motor. With this configuration, the drive member 51 starts and drives the worm gear 53 to rotate, which in turn causes the worm gear 52 to rotate the first link 4 counterclockwise via the gear structure. This rotation of the first link 4 pushes the locking pin 3 to the connection between the first elongated groove 2011 and the second elongated groove 2012, placing the locking pin 3 in the closed position where the locking mechanism is locked.
[0052] In this embodiment, to ensure the stability and reliability of the locking pin 3 when it is in the open or closed position, the linkage mechanism also includes an elastic element 6, which is configured to limit the rotation angle of the first link 4. Specifically, the elastic element 6 is a torsion spring.
[0053] Specifically, please refer to Figure 13 and Figure 14As shown, this embodiment provides the following technical solution by way of example: the linkage mechanism further includes a second connecting rod 7, a pull rod 8 and an inner opening handle 9. The second connecting rod 7, the inner opening connecting rod 1 and the positioning connecting rod 2 are hinged. The second connecting rod 7 is provided with a sliding groove 701. One end of the pull rod 8 is slidably disposed in the sliding groove 701. The other end of the pull rod 8 is connected to the inner opening handle 9. The other end of the positioning connecting rod 2 is provided with a fixing pin 10. The fixing pin 10 can abut against the end of the second connecting rod 7 near the inner opening handle 9. With this configuration, when the locking pin 3 is in the closed position where the locking mechanism is locked, it applies force to the inner opening handle 9, causing the pull rod 8 to move horizontally to the right. The pull rod 8 will cause the second connecting rod 7 to rotate clockwise. The second connecting rod 7 abuts against the fixing pin 10, causing the fixing pin 10 to drive the positioning connecting rod 2 to rotate clockwise. At this time, the locking pin 3 only slides laterally with the second elongated groove 2012, so that the locking pin 3 cannot push the inner opening connecting rod 1 to rotate clockwise, that is, it cannot pull the unlocking component to trigger the locking mechanism to unlock, and the inner release door opening fails.
[0054] Alternatively, please refer to Figure 15 and Figure 16 As shown, the linkage mechanism also includes an outward opening link 11, which is connected to the positioning link 2 and can drive the positioning link 2 to rotate. With this configuration, when the locking pin 3 is in the closed position where the locking mechanism is locked, it applies a horizontal leftward force to the outward opening link 11, causing the positioning link 2 to rotate clockwise. At this time, the locking pin 3 only slides laterally with the second elongated groove 2012, preventing the locking pin 3 from pushing the inward opening link 1 to rotate clockwise, thus preventing the unlocking component from being pulled and triggering the locking mechanism to unlock, and rendering the outward release door opening ineffective.
[0055] Furthermore, the outward-opening connecting rod 11 is provided with an outward-opening pull cable connection end and an electric unlocking pull cable connection end.
[0056] It should be noted that, please refer to Figures 5 to 10 As shown, during unlocking, the drive unit 51 starts and drives the worm gear 53 to rotate the worm wheel 52, which in turn drives the first connecting rod 4 to rotate clockwise through the gear structure. This causes the locking pin 3 to fall onto the bottom wall of the first elongated groove 2011, and the elastic member 6 restricts the first connecting rod 4 to this state. At this time, the force applied to the inward opening handle 9 causes the pull rod 8 to move horizontally to the right. The pull rod 8 will drive the second connecting rod 7 to rotate clockwise. The second connecting rod 7 abuts against the fixing pin 10, causing the fixing pin 10 to drive the positioning connecting rod 2 to rotate clockwise. This, in turn, causes the locking pin 3 to push the inward opening connecting rod 1 to rotate clockwise, pulling the unlocking component and triggering the locking mechanism to unlock and open the door. The force applied to the outward opening connecting rod 11 to move horizontally to the left causes the positioning connecting rod 2 to rotate clockwise. At this time, the locking pin 3 pushes the inward opening connecting rod 1 to rotate clockwise, pulling the unlocking component and triggering the locking mechanism to unlock and open the door.
[0057] In this embodiment, the unlocking component includes a first unlocking cable, a second unlocking cable, and a third unlocking cable. The locking mechanism includes a rear door front lock, a rear door rear lock, and a limit lock. One end of the first unlocking cable is connected to the inward opening linkage 1, and the other end of the first unlocking cable is connected to the rear door front lock, and can trigger the rear door front lock to unlock. One end of the second unlocking cable is connected to the inward opening linkage 1, and the other end of the second unlocking cable is connected to the rear door rear lock, and can trigger the rear door rear lock to unlock. One end of the third unlocking cable is connected to the linkage mechanism, and the other end of the third unlocking cable is connected to the limit lock, and can trigger the limit lock to unlock.
[0058] In this embodiment, please refer to Figure 2 As shown, the first connecting end 12, the second connecting end 13 and the third connecting end 14 are respectively used to connect the first unlocking pull wire, the second unlocking pull wire and the third unlocking pull wire.
[0059] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A super lock for a sliding door of an automobile, characterized in that, include: The linkage mechanism includes an inwardly opening connecting rod (1), a positioning connecting rod (2), and a locking pin (3). The inwardly opening connecting rod (1) is hinged to the positioning connecting rod (2). One end of the positioning connecting rod (2) is provided with a locking groove (201). The locking groove (201) includes a first elongated groove (2011) and a second elongated groove (2012) that are connected. The length direction of the first elongated groove (2011) is set at an angle to the length direction of the second elongated groove (2012). One end of the inwardly opening connecting rod (1) is provided with a slot (101). The locking pin (3) is placed in both the slot (101) and the locking groove (201). The unlocking component and the locking mechanism are used to lock the rear door to the vehicle body. The unlocking component is connected between the other end of the inner opening link (1) and the locking mechanism and can trigger the locking mechanism to unlock. The actuator (5) is used to drive the locking pin (3) to slide within the locking groove (201) and has an open position that can unlock the locking mechanism and a closed position that can lock the locking mechanism.
2. The automotive sliding door super lock according to claim 1, characterized in that, The linkage mechanism also includes a first link (4), and the actuator (5) is connected to the first link (4) and can drive the first link (4) to rotate so that the first link (4) drives the locking pin (3) to slide in the locking groove (201).
3. The automotive sliding door super lock according to claim 2, characterized in that, The actuator (5) includes a drive member (51), a worm wheel (52) and a worm (53). The drive member (51) is connected to the worm (53) and can drive the worm (53) to rotate. The worm wheel (52) is meshed with the worm (53). The first connecting rod (4) is provided with a gear structure, and the worm wheel (52) is meshed with the gear structure.
4. The automotive sliding door super lock according to claim 3, characterized in that, The driving component (51) is a motor.
5. The automotive sliding door super lock according to claim 2, wherein The linkage mechanism further includes an elastic element (6) configured to limit the rotation angle of the first link (4).
6. The automotive sliding door super lock according to claim 5, wherein The elastic element (6) is a torsion spring.
7. The automotive sliding door super lock according to any one of claims 1-6, characterized in that, The linkage mechanism also includes a second link (7), a pull rod (8), and an inner opening handle (9). The second link (7), the inner opening link (1), and the positioning link (2) are hinged. The second link (7) has a sliding groove (701). One end of the pull rod (8) is slidably disposed in the sliding groove (701). The other end of the pull rod (8) is connected to the inner opening handle (9). The other end of the positioning link (2) is provided with a fixing pin (10). The fixing pin (10) can abut against the end of the second link (7) near the inner opening handle (9).
8. The automotive sliding door super lock according to any one of claims 1-6, characterized in that, The linkage mechanism also includes an outward-opening link (11), which is connected to the positioning link (2) and can drive the positioning link (2) to rotate.
9. The automotive sliding door super lock according to any one of claims 1-6, characterized in that, The unlocking component includes a first unlocking cable, and the locking mechanism includes a rear door front lock. One end of the first unlocking cable is connected to the inward opening linkage (1), and the other end of the first unlocking cable is connected to the rear door front lock and can trigger the rear door front lock to unlock.
10. The automotive sliding door super lock according to claim 9, characterized in that, The unlocking component also includes a second unlocking cable, and the locking mechanism also includes a rear door lock. One end of the second unlocking cable is connected to the inner opening linkage (1), and the other end of the second unlocking cable is connected to the rear door lock and can trigger the rear door lock to unlock.