A new type of sliding door locking actuator mechanism assembly

Abstract

The utility model belongs to the technical field of automobile parts, disclose a new type of sliding door locking actuator mechanism assembly, it includes base and the cover board that cooperates with base, still includes setting on the base drive mechanism, support subassembly and lock tongue, support subassembly is fixed on the base, lock tongue slidingly connected on support subassembly, drive mechanism cooperates with lock tongue, and drives lock tongue to move on drive mechanism and realizes locking or unlocking, still be equipped with the noise reduction spare of lock tongue adaptation on the base. The utility model's noise reduction spare can reduce the noise, and the use comfort is good, and the emergency unlocking structure can be in outside through corresponding tool and emergency unlocking structure cooperation realizes manual unlocking, and the overall practicality is strong, the symmetrical layout of wheel system and lock tongue can reduce production cost, simplify production management, improve assembly efficiency and strengthen product versatility, set up waterproof adhesive tape in the end outer periphery of the shaft exposure base and cover board to prevent the internal component, further strengthened the practicality of use.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to a novel sliding door locking actuator assembly. Background Technology

[0002] In the automotive industry, sliding doors are a common type of vehicle door, widely used in various models such as commercial vehicles and vans. Sliding doors typically open and close by sliding, relying primarily on the coordinated operation of a mechanical transmission structure and an electric power assist system. However, existing sliding doors suffer from a significant problem in practical use: accidental opening.

[0003] During normal driving, sliding doors may open on their own without the user's active intervention due to factors such as road bumps, vehicle vibrations, or accidental external impacts. This not only poses a safety hazard to passengers but may also cause items inside the vehicle to fall out and even affect driving safety. For example, at high speeds, a sliding door suddenly opening could throw passengers out of the vehicle, causing a serious traffic accident.

[0004] To address the problem of accidental opening of car sliding doors, researchers in this field have designed various actuators that can effectively solve this problem. However, existing sliding door actuators have many components and relatively complex structures. Furthermore, during operation, the collision between mechanical parts when the actuator locks or unlocks generates significant noise. This noise not only affects the comfort of passengers and reduces the driving experience, but may also interfere with normal communication among occupants. In addition, most existing sliding door actuators lack emergency unlocking functions; in emergencies, such as vehicle accidents leading to electronic system failure or actuator malfunction, occupants may not be able to open the sliding door in time to escape, increasing the risk of being trapped. Based on the above, it is clear that current sliding door locking actuators generally suffer from low practicality. Utility Model Content

[0005] The purpose of this utility model is to propose a novel sliding door locking actuator assembly, which has a simple structure and strong practicality.

[0006] The technical solution adopted to achieve the purpose of this utility model is: a novel sliding door locking actuator mechanism assembly, including a base and a cover plate that cooperates with the base, and also including a drive mechanism, a bracket assembly and a locking tongue disposed on the base; the bracket assembly is fixed on the base, and the locking tongue is slidably connected to the bracket assembly; the drive mechanism cooperates with the locking tongue and drives the locking tongue to move on the drive mechanism to achieve locking or unlocking; the base is also provided with a noise reduction component adapted to the locking tongue.

[0007] The working principle of this utility model device is as follows: the drive mechanism moves the locking tongue left and right on the bracket assembly, causing the end of the locking tongue near the sliding door to extend out of the base or retract into the base. In actual design, the sliding door is also provided with a lock hole corresponding to the locking tongue. When the end of the locking tongue near the sliding door extends out of the base, it is inserted into the lock hole to lock and prevent the sliding door from being opened accidentally; when the end of the locking tongue near the sliding door retracts into the base, the locking tongue is released, and the sliding door can slide. The schematic diagram of the above process is shown below. Figure 1 As shown. During the locking or unlocking process of the latch, the end face or other parts of the latch are prone to collision with the inner wall of the base. The noise reduction component in this invention includes one or more parts, mainly located at the position where the latch and the inner wall of the base will collide. This reduces noise during the collision between the latch and the base, lowering the noise generated by the collision between mechanical parts when the actuator locks or unlocks, thus improving user comfort and practicality. The specific number and position of the noise reduction components can be adjusted according to the shape of the latch.

[0008] In this utility model, the drive mechanism includes a motor, a worm gear, a first gear, and a second gear; the motor is fixed on the base, the worm gear is fixed on the output end of the motor, and both the worm gear and the second gear mesh with the first gear; the locking tongue is provided with serrations that mesh with the second gear.

[0009] Furthermore, it also includes a fixed shaft and a rotating shaft that are respectively matched with the first gear and the second gear; and the worm, the first gear and the second gear are arranged symmetrically with the locking tongue.

[0010] The fixed shaft is fixed to the base, and the first gear is sleeved on the fixed shaft through a bearing;

[0011] The two ends of the rotating shaft pass through the base and the cover plate respectively, and are rotatably connected to the base and the cover plate through bearings. The second gear is fixedly sleeved on the rotating shaft. An emergency unlocking structure is provided on the end face of both ends of the rotating shaft, and a waterproof rubber strip is also provided on the outer periphery of the end of the rotating shaft that protrudes from the base and the cover plate.

[0012] Furthermore, the base is also equipped with a snap-fit ​​device with a snap-fit ​​groove. The end of the worm gear is embedded in the snap-fit ​​groove and is in clearance fit with the snap-fit ​​groove.

[0013] Furthermore, the bracket assembly includes a fixing plate and an assembly tube; the fixing plate is fixed to the vehicle body, the assembly tube is fixed to the fixing plate, and after passing through the fixing plate, one end is placed inside the base and the other end is placed outside the fixing plate; the locking tongue is slidably disposed inside the assembly tube.

[0014] Furthermore, a through groove is provided on the side of the assembly tube near the second gear; the locking tongue includes a cylindrical part and a toothed part, the toothed part being located in the through groove; the serrations on the locking tongue are located on the toothed part and are located on the side of the toothed part near the second gear.

[0015] The end of the assembly tube that mates with the toothed part is also provided with a sliding groove. The toothed part is also provided with a limit pin on the side corresponding to the sliding groove. The limit pin is embedded in the sliding groove and slides in the sliding groove as the locking tongue slides.

[0016] Furthermore, the noise reduction component includes a first noise reduction component and a second noise reduction component disposed within the base; the first noise reduction component is disposed on the inner wall of the base near the end of the toothed portion, and is used to reduce noise by contacting the end of the toothed portion when unlocking; the second noise reduction component is disposed on the inner wall of the base near the side of the fixing plate, and is used to reduce noise by contacting the limiting pin when locking.

[0017] Furthermore, a limiting component that cooperates with the limiting pin is provided on the inner wall of the base near the fixed plate, and the second noise reduction component is fixed on the limiting component; during the sliding unlocking process of the limiting pin following the lock tongue, the limiting pin collides with the second noise reduction component on the limiting component.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. This utility model has a simple structure and is easy to assemble and disassemble. By setting a noise reduction component to cooperate with the locking tongue, noise can be reduced during the collision between the locking tongue and the base, thereby reducing the noise generated by the collision between mechanical parts when the actuator locks or unlocks, and improving the comfort and practicality of use.

[0020] 2. This utility model has an emergency unlocking structure on the end faces of both ends of the rotating shaft. When the motor cannot rotate due to power failure or other reasons, it can be manually unlocked by using the corresponding tools in conjunction with the emergency unlocking structure, which further enhances its practicality.

[0021] 3. The wheel system and locking tongue in this utility model are arranged in a symmetrical manner, which can reduce production costs, simplify production management, improve assembly efficiency and enhance product versatility.

[0022] 4. In this utility model, the waterproof strip provided on the outer periphery of the end of the shaft that protrudes from the base and the cover plate can play a role in waterproofing and dustproofing, and protect the components inside the base. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram illustrating the working principle of this utility model.

[0025] Figure 2This is a schematic diagram of the overall structure of this utility model.

[0026] Figure 3 This is a schematic diagram of the structure of this utility model after the cover plate is removed and it is in a locked state.

[0027] Figure 4 This is a schematic diagram of the structure of this utility model after the cover plate has been removed and the device is in the unlocked state.

[0028] Figure 5 yes Figure 4 A structural diagram from another perspective.

[0029] Figure 6 This is a side view structural diagram of the drive mechanism and locking tongue of this utility model.

[0030] Figure 7 This is a three-dimensional structural diagram of the drive mechanism and locking tongue of this utility model.

[0031] Figure 8 yes Figure 7 A structural diagram from another perspective.

[0032] Figure 9 This is a structural schematic diagram of the drive mechanism of this utility model.

[0033] Figure 10 yes Figure 9 A structural diagram from another perspective.

[0034] Figure 11 This is a schematic diagram of the structure of the locking tongue of this utility model.

[0035] Figure 12 This is a schematic diagram of a gear train and locking tongue combination according to this utility model.

[0036] Figure 13 yes Figure 12 A top-view structural diagram.

[0037] In the diagram: 1. Base; 2. Cover plate; 3. Drive mechanism; 4. Bracket assembly; 5. Locking tongue; 6. Serrated edge; 7. Fixed shaft; 8. Rotating shaft; 9. Emergency unlocking structure; 10. Snap-fit ​​device; 11. Snap-fit ​​groove; 12. Through groove; 13. Sliding groove; 14. Limiting pin; 15. First noise reduction component; 16. Second noise reduction component; 17. Limiting component; 18. Sealing ring; 19. Waterproof strip;

[0038] 301. Motor; 302. Worm gear; 303. First gear; 304. Second gear;

[0039] 401. Fixing plate; 402. Assembly tube;

[0040] 501. Cylindrical part; 502. Toothed part. Detailed Implementation

[0041] The illustrated embodiments are provided to better illustrate the present invention, but the content of the present invention is not limited to the illustrated embodiments. Therefore, non-essential improvements and adjustments made to the implementation schemes by those skilled in the art based on the above-described content of the present invention still fall within the protection scope of the present invention.

[0042] like Figures 2 to 13 As shown, this utility model provides a novel sliding door locking actuator assembly, including a base 1 and a cover plate 2 that cooperates with the base 1, and also includes a drive mechanism 3, a bracket assembly 4 and a locking tongue 5 disposed on the base 1; the bracket assembly 4 is fixed on the base 1, and the locking tongue 5 is slidably connected to the bracket assembly 4; the drive mechanism 3 cooperates with the locking tongue 5 and drives the locking tongue 5 to move on the drive mechanism 3 to achieve locking or unlocking; the base 1 is also provided with a noise reduction component adapted to the locking tongue 5.

[0043] The device of this utility model is mainly used to be installed on the C-pillar of a car, one on each side of the sliding door. When locking is required, the locking tongue 5 extends out of the base 1 at the end near the sliding door under the action of the drive mechanism 3 and cooperates with the lock hole on the sliding door. When unlocking is required, the end near the sliding door retracts into the base 1 under the action of the drive mechanism 3 to achieve unlocking.

[0044] The base 1 is mainly used to install various components. Through the cooperation of the base 1 and the cover plate 2, the drive mechanism 3, the bracket assembly 4 and the locking tongue 5 are integrated into the base 1, which protects the components, prevents external interference, and ensures the normal operation of the equipment.

[0045] like Figures 3 to 5 , Figure 12 and Figure 13 As shown, the drive mechanism 3 is mainly used to control the movement of the latch 5. In this utility model, the drive mechanism 3 includes a motor 301, a worm gear 302, a first gear 303, and a second gear 304. The motor 301 is fixed on the base 1, and the worm gear 302 is fixed at the output end of the motor 301. Both the worm gear 302 and the second gear 304 mesh with the first gear 303. The latch 5 is provided with serrations 6 that mesh with the second gear 304. When the motor 301 is powered on, the worm gear 302 rotates, driving the first gear 303 to rotate, and the first gear 303 rotates, driving the second gear 304 to rotate. Since the second gear 304 meshes with the serrations 6 on the latch 5, the latch 5 moves laterally along the opening and closing direction of the sliding door under the rotation of the second gear 304, and the locking function of the sliding door is achieved through the linear movement of the latch 5.

[0046] During the locking or unlocking process of the latch 5, the end face or other parts of the latch 5 are prone to collision with the inner wall of the base 1. The noise reduction component in this invention includes one or more parts, mainly located at the positions where the latch 5 and the inner wall of the base 1 will collide. This reduces noise during the collision between the latch 5 and the base 1, thereby reducing the noise generated by the collision between mechanical parts when the actuator locks or unlocks, and improving the comfort of use. The specific number and position of the noise reduction components can be adjusted according to the shape of the latch 5.

[0047] like Figures 3 to 5 , Figure 12 and Figure 13 As shown, this utility model also includes a fixed shaft 7 and a rotating shaft 8 that are respectively matched with the first gear 303 and the second gear 304;

[0048] The fixed shaft 7 is fixed on the base 1, and the first gear 303 is sleeved on the fixed shaft 7 through a bearing;

[0049] The two ends of the rotating shaft 8 pass through the base 1 and the cover plate 2 respectively, and are rotatably connected to the base 1 and the cover plate 2 through bearings. The second gear 304 is fixedly sleeved on the rotating shaft 8, and an emergency unlocking structure 9 is provided on the end face of both ends of the rotating shaft 8.

[0050] The fixed shaft 7 primarily supports the first gear 303. A bearing is installed between the first gear 303 and the fixed shaft 7 to ensure smooth rotation of the first gear 303 and reduce friction and wear. In this invention, the fixed shaft 7 is fixed to the base 1 and does not rotate with the first gear 303.

[0051] The rotating shaft 8 is fixedly connected to the second gear 304, and the rotating shaft 8 is fixed to the base 1 and the cover plate 2 by bearings. This structure ensures that the rotating shaft 8 rotates flexibly while simultaneously rotating in tandem with the second gear 304. Furthermore, this invention provides emergency unlocking structures 9 on the end faces of both ends of the rotating shaft 8. Since the rotating shaft 8 passes through the base 1 and the cover plate 2, the end faces of the rotating shaft 8 are exposed. When the motor 301 fails to rotate due to power failure or other reasons, it can be manually unlocked externally using appropriate tools in conjunction with the emergency unlocking structures 9, making it highly practical.

[0052] In this invention, the emergency unlocking structure 9 provided on the end faces of both ends of the rotating shaft 8 can be a hexagonal groove, a flathead screwdriver, or a Phillips head groove, etc., which can be rotated to unlock manually using the corresponding tools (such as an Allen wrench, a flathead screwdriver, or a Phillips head screwdriver). In actual design, other structures can also be used, depending on the specific needs.

[0053] like Figure 12 and Figure 13As shown, the gear train (including worm 302, first gear 303 and second gear 304) and locking tongue 5 in this utility model are arranged symmetrically.

[0054] This utility model's symmetrical design requires only one specification of wheel system and latch 5 parts to be produced during the manufacturing process. These parts are completely identical in structure and size, with no distinction between left and right. Furthermore, during vehicle assembly, whether it is the left or right door, this single specification of parts can be used directly for installation, without the need to distinguish and select additional symmetrical structure parts specifically designed for one side of the door.

[0055] Traditional design methods often require manufacturing different specifications of parts for the left and right doors to meet the different installation requirements and structural characteristics of each door. This not only increases the complexity and cost of the production process but also places higher demands on production management.

[0056] Compared with traditional methods, the symmetrical layout structure in this utility model has the following advantages:

[0057] (1) During production, only one specification of part needs to be produced, which reduces the development and manufacturing costs of molds, as well as the procurement costs of raw materials and inventory management costs.

[0058] (2) During assembly, assembly workers no longer need to spend time and effort to distinguish between different specifications of parts. They only need to follow the unified installation steps. This not only improves the assembly speed but also reduces assembly errors caused by incorrect part selection, thereby improving product quality and production efficiency.

[0059] (3) The symmetrical layout significantly improves the versatility of vehicle parts. When repairing and replacing parts, repair personnel can more easily obtain suitable parts without having to consider whether the vehicle door is on the left or right side, thus improving repair efficiency and customer satisfaction.

[0060] Furthermore, since the wheel system and locking tongue 5 are arranged symmetrically, the central shaft 8 of this utility model is provided with emergency unlocking structure 9 on both the base 1 and the cover plate 2, so that there are emergency unlocking structures 9 inside and outside the vehicle after assembly, which can realize emergency unlocking on both sides, meet the customer's symmetrical assembly needs, and is highly practical.

[0061] like Figures 3 to 5 As shown, in this utility model, a snap-fit ​​device 10 is also provided on the base 1. The snap-fit ​​device 10 is provided with a snap-fit ​​groove 11. The end of the worm 302 is embedded in the snap-fit ​​groove 11 and is in clearance fit with the snap-fit ​​groove 11. The snap-fit ​​device 10 of this utility model is mainly used to limit the end of the worm 302, reduce the sway amplitude of the worm 302 during rotation, and ensure the stable operation of the device.

[0062] like Figures 3 to 10 As shown, in this utility model, the bracket assembly 4 includes a fixing plate 401 and an assembly tube 402. The fixing plate 401 is fixed to the vehicle body, and the assembly tube 402 is fixed to the fixing plate 401. After passing through the fixing plate 401, one end of the assembly tube 402 is placed inside the base 1, and the other end is placed outside the fixing plate 401. The locking tongue 5 is slidably disposed inside the assembly tube 402. In this utility model, the fixing plate 401 mainly serves a fixing function, and the inner cavity of the assembly tube 402 serves as a channel for the sliding of the locking tongue 5. When the actuator locks, the locking tongue 5 moves along the direction of the fixing plate 401 inside the assembly tube 402 under the action of the drive mechanism 3 until it extends out of the assembly tube 402 to achieve locking.

[0063] like Figures 6 to 11 As shown, in this utility model, the assembly tube 402 has a through groove 12 on the side near the second gear 304; the locking tongue 5 includes a cylindrical part 501 and a toothed part 502, the toothed part 502 is located at the through groove 12; the serrations 6 on the locking tongue 5 are located on the toothed part 502 and are located on the side of the toothed part 502 near the second gear 304.

[0064] The through slot 12 is mainly to ensure that the serrations 6 on the latch 5 can smoothly mesh with the second gear 304, thereby driving the latch 5 to move laterally. The cylindrical part 501 is used to cooperate with the external sliding door. When locking is required, the end of the cylindrical part 501 is inserted into the lock hole of the sliding door. The toothed part 502 mainly meshes with the second gear 304 to obtain the power for horizontal movement.

[0065] like Figure 8 and Figure 10 As shown, a sliding groove 13 is provided at one end of the assembly tube 402 that cooperates with the toothed part 502. A limiting pin 14 is also provided on the side of the toothed part 502 corresponding to the sliding groove 13. The limiting pin 14 is embedded in the sliding groove 13 and slides in the sliding groove 13 following the sliding of the locking tongue 5.

[0066] The upper end of the limiting pin 14 extends out of the sliding groove 13, which serves as a limiting mechanism. Specifically, during the movement of the locking tongue 5, the locking tongue 5 itself will not rotate because the limiting pin 14 is engaged in the sliding groove 13. This prevents the locking tongue 5 from rotating, ensuring the meshing connection between the saw teeth 6 and the second gear 304, and guaranteeing the normal transmission of the device.

[0067] like Figure 4 and Figure 5As shown, in this utility model, the noise reduction component includes a first noise reduction component 15 and a second noise reduction component 16 disposed in the base 1; the first noise reduction component 15 is disposed on the inner wall of the base 1 near the end of the toothed portion 502, and is used to reduce noise by contacting the end of the toothed portion 502 when unlocking; the second noise reduction component 16 is disposed on the inner wall of the base 1 near the side of the fixing plate 401, and is used to reduce noise by contacting the limiting pin 14 when locking.

[0068] During operation, the main source of noise in the actuator is the impact sound of the latch 5 striking the base 1. This invention reduces this impact sound by incorporating noise-reducing components inside the base 1. Both the first noise-reducing component 15 and the second noise-reducing component 16 in this invention are made of soft rubber. To ensure the device's durability, the latch 5 is made of metal. However, metal is a material with high hardness and a high modulus of elasticity. When metal collides with a hard object, the impact force causes significant vibration, resulting in a loud noise. Soft rubber, on the other hand, has good elasticity and flexibility. When metal impacts soft rubber, the rubber deforms, absorbing some of the impact energy and reducing the amplitude of the metal's vibration. Furthermore, the rubber's cushioning effect allows the metal's vibration to decay rapidly, shortening the vibration time. Therefore, this invention, by designing the first noise-reducing component 15 and the second noise-reducing component 16, can reduce the noise of the latch 5 colliding with the base 1 during locking or unlocking, thereby improving user comfort.

[0069] like Figures 3 to 8 , Figure 11 As shown, a limiting member 17 that cooperates with the limiting pin 14 is also provided on the inner wall of the base 1 near the fixed plate 401, and the second noise reduction member 16 is fixed on the limiting member 17; during the sliding unlocking process of the limiting pin 14 following the locking tongue 5, the limiting pin 14 collides with the second noise reduction member 16 on the limiting member 17.

[0070] The latch 5 moves along the sliding door direction until the limiting pin 14 collides with the second noise reduction component 16 on the limiting component 17. At this time, the latch 5 engages with the lock hole on the sliding door to achieve locking. During the unlocking process, the latch 5 moves in the opposite direction until the end of the toothed part 502 collides with the first noise reduction component 15. At this time, the latch 5 retracts into the base 1 and disengages from the lock hole on the sliding door to achieve unlocking.

[0071] In this utility model, a sealing ring 18 is provided on the assembly tube 402 on the outside of the fixing plate 401, and a waterproof rubber strip 19 is provided on the outer periphery of the end of the rotating shaft 8 that is exposed on the base 1 and the cover plate 2. The waterproof rubber strip 19 is made of vulcanized rubber. The sealing ring 18 and the waterproof rubber strip 19 mainly play the functions of waterproofing and dustproofing.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A novel sliding door locking actuator mechanism assembly, characterized in that, The device includes a base (1) and a cover plate (2) that cooperates with the base (1), as well as a drive mechanism (3), a bracket assembly (4) and a locking tongue (5) disposed on the base (1); the bracket assembly (4) is fixed on the base (1), and the locking tongue (5) is slidably connected to the bracket assembly (4); the drive mechanism (3) cooperates with the locking tongue (5) and drives the locking tongue (5) to move on the drive mechanism (3) to lock or unlock; the base (1) is also provided with a noise reduction component adapted to the locking tongue (5).

2. The novel sliding door locking actuator mechanism assembly according to claim 1, characterized in that, The drive mechanism (3) includes a motor (301), a worm (302), a first gear (303), and a second gear (304); the motor (301) is fixed on the base (1), the worm (302) is fixed on the output end of the motor (301), and both the worm (302) and the second gear (304) mesh with the first gear (303); the locking tongue (5) is provided with serrations (6) that mesh with the second gear (304).

3. The novel sliding door locking actuator mechanism assembly according to claim 2, characterized in that, It also includes a fixed shaft (7) and a rotating shaft (8) that are respectively matched with the first gear (303) and the second gear (304); and the worm (302), the first gear (303) and the second gear (304) and the locking tongue (5) are arranged in a symmetrical manner. The fixed shaft (7) is fixed on the base (1), and the first gear (303) is sleeved on the fixed shaft (7) through a bearing; The two ends of the rotating shaft (8) pass through the base (1) and the cover plate (2) respectively, and are rotatably connected to the base (1) and the cover plate (2) through bearings. The second gear (304) is fixedly sleeved on the rotating shaft (8). An emergency unlocking structure (9) is provided on the end face of both ends of the rotating shaft (8). A waterproof strip (19) is also provided on the outer periphery of the end of the rotating shaft (8) that is exposed on the base (1) and the cover plate (2).

4. The novel sliding door locking actuator mechanism assembly according to claim 2 or 3, characterized in that, The base (1) is also provided with a snap-fit ​​device (10), and the snap-fit ​​device (10) is provided with a snap-fit ​​groove (11). The end of the worm (302) is embedded in the snap-fit ​​groove (11) and is in clearance fit with the snap-fit ​​groove (11).

5. The novel sliding door locking actuator mechanism assembly according to claim 1, 2, or 3, characterized in that, The bracket assembly (4) includes a fixing plate (401) and an assembly tube (402); the fixing plate (401) is fixed to the vehicle body, and the assembly tube (402) is fixed on the fixing plate (401). After passing through the fixing plate (401), one end is placed inside the base (1) and the other end is placed outside the fixing plate (401); the locking tongue (5) is slidably disposed inside the assembly tube (402).

6. The novel sliding door locking actuator mechanism assembly according to claim 5, characterized in that, The assembly tube (402) has a through groove (12) on the side near the second gear (304); the locking tongue (5) includes a cylindrical part (501) and a toothed part (502), the toothed part (502) is located in the through groove (12); the serrations (6) on the locking tongue (5) are located in the toothed part (502) and are located on the side of the toothed part (502) near the second gear (304); The assembly tube (402) is provided with a sliding groove (13) at one end that mates with the toothed part (502). A limiting pin (14) is also provided on the side of the toothed part (502) corresponding to the sliding groove (13). The limiting pin (14) is embedded in the sliding groove (13) and slides in the sliding groove (13) following the sliding of the locking tongue (5).

7. The novel sliding door locking actuator mechanism assembly according to claim 6, characterized in that, The noise reduction component includes a first noise reduction component (15) and a second noise reduction component (16) disposed in the base (1); the first noise reduction component (15) is disposed on the inner wall of the base (1) near the end of the toothed part (502) and is used to contact the end of the toothed part (502) to reduce noise when unlocking; the second noise reduction component (16) is disposed on the inner wall of the base (1) near the side of the fixing plate (401) and is used to contact the limiting pin (14) to reduce noise when locking.

8. The novel sliding door locking actuator mechanism assembly according to claim 7, characterized in that, On the inner wall of the base (1) near the fixed plate (401), there is also a limiting member (17) that cooperates with the limiting pin (14), and the second noise reduction member (16) is fixed on the limiting member (17); during the sliding unlocking process of the limiting pin (14) following the locking tongue (5), the limiting pin (14) collides with the second noise reduction member (16) on the limiting member (17).

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