Self-suction tail door lock clutch mechanism of automobile

Abstract

The utility model relates to a self-suction tail door lock technology field of car especially a kind of self-suction tail door lock clutch mechanism of car. The bottom plate is riveted with the clutch rocker arm rivet axle and is matched with the clutch connecting rod of clutch rocker arm;The side of rocker body is equipped with limiting arm and limiting protrusion, and there is gap between limiting arm and limiting protrusion, forms the bayonet, and the other side of rocker body is equipped with second rocker arm, and one end of rocker body is equipped with the bending part that is bent downward, and bending part is set on clutch rocker arm rivet axle. There is a clutch rocker arm unlocking camber surface on clutch rocker arm, clutch function is carried out at any position during self-suction process, clutch connecting rod is loosened, and ratchet assembly is released;Bevel gear rotates and drives clutch connecting rod, unlocking rocker arm, finally pushes clutch connecting rod reset, completes clutch and reset function, and the function of self-suction lock is realized through clutch mechanism, structure is simple, and reliability is high, realizes clutch function, compared with prior art, less parts, more simple.

Description

Technical Field

[0001] This utility model relates to the field of automotive self-priming tailgate lock technology, and in particular to an automotive self-priming tailgate lock clutch mechanism. Background Technology

[0002] A self-closing electric tailgate lock is a lock installed at the rear of a vehicle to automatically engage and lock the tailgate when it is closed, ensuring it remains closed while the vehicle is in motion. By combining motor drive and mechanical locking, the self-closing tailgate lock achieves automatic closing and locking of the tailgate, improving both convenience and security, and represents an advanced design for modern automotive tailgate locks.

[0003] When a car's self-priming tailgate lock is in use and it automatically primes to the non-fully locked position, if the car experiences a power outage or malfunction, the motor stops working. Under the action of the gears connected to the motor, the clutch linkage will limit the ratchet assembly, preventing it from rotating clockwise to unlock. In this case, the car's self-priming electric tailgate cannot be opened.

[0004] Furthermore, in the field of door lock clutch disengagement, existing technologies, such as the Chinese patent CN213953295U which discloses a clutch disengagement mechanism for door locks, achieve clutch control through the linkage of a stop plate, a toothed plate, a self-closing rocker arm, and a ratchet / pawl. However, the structure is redundant and complex, requiring as many as six core linkage components, including a base plate, a stop plate, a toothed plate, a self-closing rocker arm, a ratchet, and a pawl. The large number of parts and cumbersome assembly process result in high manufacturing costs. Additionally, the large space occupation and the stacked layout of multiple components increase the overall thickness of the mechanism, making it difficult to adapt to the requirements of ultra-thin smart door locks. Therefore, due to its complexity and reliability issues, this design limits its application in low-cost, highly integrated scenarios. Summary of the Invention

[0005] The technical problem to be solved by this utility model is: in order to solve the problems existing in the prior art in the background art, to provide a car self-closing tailgate lock clutch mechanism that realizes the function of self-closing lock, has a simple structure, high reliability, and realizes the clutch function.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a car self-priming tailgate lock clutch mechanism, including a base plate, bevel gears and a clutch linkage. The bevel gears are riveted to the base plate by bevel gear riveting shafts, and the bevel gears and the clutch linkage are riveted to each other by clutch linkage riveting shafts. A clutch rocker arm that cooperates with the clutch linkage is riveted to the base plate by a clutch rocker arm riveting shaft.

[0007] The clutch rocker arm includes a rocker arm body. One side of the rocker arm body is provided with a limiting arm and a limiting protrusion. There is a gap between the limiting arm and the limiting protrusion to form a bayonet. The other side of the rocker arm body is provided with a second rocker arm. One end of the rocker arm body is provided with a downwardly bent part, which is sleeved on the clutch rocker arm rivet shaft.

[0008] Furthermore, the limiting arm includes a horizontal straight arm and a hook arm. The inner transition surface at the connection between the horizontal straight arm and the hook arm is a clutch rocker arm unlocking arc surface, and the inner side of the end of the hook arm has a clutch rocker arm limiting slot.

[0009] Furthermore, a torsion spring is fitted onto the shaft of the clutch rocker arm rivet, and the bent part of the clutch rocker arm is located below the torsion spring.

[0010] Furthermore, the bending section includes a straight bar section and a cross bar section, and mounting holes are provided on the surface of the cross bar section.

[0011] Furthermore, one end of the clutch linkage is bent downward to form a bent end, and a first opening is provided on the bent end. A clutch linkage pin is installed in the first opening. A second opening is provided on the other end of the clutch linkage, and a clutch linkage clutch shaft is installed in the second opening. A rivet hole is provided in the middle of the clutch linkage.

[0012] Furthermore, a ratchet assembly is mounted on the base plate via a ratchet rivet shaft. The base plate is provided with a baffle, and a limiting block is provided at the edge of the ratchet assembly. The limiting block is located within the area formed between the baffle and the clutch linkage pin in the clutch linkage.

[0013] Furthermore, a pawl assembly is mounted on the base plate via a pawl rivet shaft, and a pawl protrusion is mounted on one end of the pawl assembly.

[0014] Furthermore, an unlocking rocker arm is installed on the base plate via an unlocking rocker arm rivet shaft. One end of the unlocking rocker arm has a rivet shaft hole, and the other end of the unlocking rocker arm has a notch. A pawl protrusion is engaged in the notch. One side of the unlocking rocker arm has an extension limiting part that extends toward the clutch rocker arm rivet shaft.

[0015] Furthermore, a limiting area is formed between the extended limiting part and the limiting block in the ratchet assembly, and the clutch linkage pin in the clutch linkage rotates within this limiting area.

[0016] Furthermore, an emergency rocker arm is installed via an emergency rocker arm rivet. One end of the emergency rocker arm is a handle end, and the other end is a toggle end. The toggle end is located near the pawl protrusion and is used to actuate the pawl protrusion.

[0017] The beneficial effects of this utility model are:

[0018] (1) The clutch rocker arm of this utility model has a clutch rocker arm unlocking arc surface, and the clutch rocker arm can perform the clutch function at any position during the self-priming process;

[0019] (2) The rotation of the bevel gear drives the clutch linkage and the unlocking rocker arm, ultimately pushing the clutch linkage back to its original position, completing the clutch and return function. Furthermore, the clutch mechanism supplements the self-locking function, resulting in a simple structure, high reliability, and effective clutch operation.

[0020] (3) Compared with the existing structure, it has fewer parts, occupies less space, and has a compact and simple structure. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a utility model Figure 1 A schematic diagram of the structure after removing the clutch rocker arm and unlocking the rocker arm;

[0024] Figure 3 This is a schematic diagram of the clutch rocker arm of this utility model;

[0025] Figure 4 This is a schematic diagram of the clutch linkage of this utility model;

[0026] Figure 5 This is a schematic diagram of the clutch and unlocking mechanism of this utility model;

[0027] Figure 6 This is a schematic diagram of the clutch unlocking and return mechanism of this utility model;

[0028] Figure 7 This is a schematic diagram of the structure of the clutch unlocking and return to position of this utility model;

[0029] Figure 8 This is a schematic diagram of the fully locked structure of this utility model;

[0030] In the diagram: 1. Base plate; 2. Ratchet assembly; 3. Pad assembly; 3-1. Pad protrusion; 4. Ratchet rivet pin; 5. Pad rivet pin; 6. Unlocking rocker arm; 6-1. Unlocking rocker arm limit point; 7. Bevel gear; 8. Clutch linkage; 8-1. Clutch linkage clutch shaft; 8-2. Clutch linkage pin; 8-3. First opening; 8-4. Second opening; 8-5. Riveting hole; 9. Clutch rocker arm; 9-1. Clutch rocker arm unlocking arc surface; 9-2. Clutch rocker arm limit latch; 9-3. Rocker arm Body; 9-4. Limiting arm; 9-4-1. Horizontal straight arm; 9-4-2. Hook arm; 9-5. Limiting protrusion; 9-6. Bayonet; 9-7. Second rocker arm; 9-8. Bending part; 10. Unlocking rocker arm rivet shaft; 11. Clutch linkage rivet shaft; 12. Clutch rocker arm rivet shaft; 13. Bevel gear rivet shaft; 14. Emergency rocker arm; 15. Emergency rocker arm rivet shaft; 16. Torsion spring; 17. Mounting hole; 18. Baffle; 19. Limiting block; 20. Extended limiting part; 21. Limiting protrusion. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0032] like Figures 1-8 The illustrated automotive self-priming tailgate lock clutch mechanism includes a base plate 1, bevel gears 7, and a clutch linkage 8. The bevel gears 7 are riveted to the base plate 1 via a bevel gear riveting shaft 13 and rotate around the bevel gear riveting shaft 13, ensuring stable installation and rotation of the bevel gears. The bevel gears 7 are riveted to the clutch linkage 8 via a clutch linkage riveting shaft 11. A clutch rocker arm 9, which cooperates with the clutch linkage 8, is riveted to the base plate 1 via a clutch rocker arm riveting shaft 12 and rotates around the clutch rocker arm riveting shaft 12. The design of the clutch rocker arm 9 ensures that the action of the clutch linkage 8 can be effectively controlled when needed to realize the clutch function. Compared with the existing structure, there are fewer parts.

[0033] like Figure 3 As shown, the clutch rocker arm 9 includes a rocker arm body 9-3. One side of the rocker arm body 9-3 is provided with a limiting arm 9-4 and a limiting protrusion 9-5, with a gap between the limiting arm 9-4 and the limiting protrusion 9-5 forming a locking slot 9-6. One end of the rocker arm body 9-3 is provided with a downwardly bent portion 9-8, which is sleeved on the clutch rocker arm rivet shaft 12. The other side of the rocker arm body 9-3 is provided with a second rocker arm 9-7. By manually moving the second rocker arm 9-7, the clutch rocker arm 9 rotates clockwise around the clutch rocker arm rivet shaft 12, disengaging the clutch linkage 8 and engaging the clutch function.

[0034] like Figure 3As shown, the limiting arm 9-4 plays a crucial role in the self-priming electric tailgate lock of an automobile. It not only provides structural stability and operational convenience but also ensures reliable unlocking and closing of the tailgate in emergencies. It includes a horizontal straight arm 9-4-1 and a hook arm 9-4-2. The inner transition surface at the connection between the horizontal straight arm 9-4-1 and the hook arm 9-4-2 is the clutch rocker arm unlocking arc surface 9-1, providing a smooth transition surface and reducing friction during the rotation of the clutch linkage 8, making the rotation of the clutch linkage 8 smoother. The inner end of the hook arm 9-4-2 has a clutch rocker arm limiting slot 9-2. By limiting the range of motion of the clutch linkage 8, the clutch rocker arm limiting slot 9-2 improves the safety of the tailgate lock system, preventing the tailgate from opening due to accidental operation during driving. This ensures that the tailgate lock system can work efficiently and reliably in both normal operation and emergency situations.

[0035] A torsion spring 16 is fitted on the shaft of the clutch rocker arm rivet 12. The torsion spring 16 provides elastic restoring force, which enables the clutch rocker arm 9 to automatically return to its initial position after operation, improving the convenience and reliability of operation. The bent part 9-8 of the clutch rocker arm 9 is located below the torsion spring 16. This design ensures the stability and fixation of the bent part 9-8, so that the clutch rocker arm 9 will not be displaced or loosened during operation.

[0036] The bending section 9-8 includes a straight bar section and a cross bar section, and the surface of the cross bar section is provided with mounting holes 17.

[0037] like Figure 4 As shown, one end of the clutch link 8 is bent downward to form a bent end, and a first opening 8-3 is provided on the bent end. The clutch link pin 8-2 is installed in the first opening 8-3. The other end of the clutch link 8 is provided with a second opening 8-4, and the clutch link clutch shaft 8-1 is installed in the second opening 8-4. A riveting hole 8-5 is provided in the middle of the clutch link 8.

[0038] A ratchet assembly 2 is mounted on the base plate 1 via a ratchet rivet 4. The base plate 1 is provided with a baffle 18, and a limiting block 19 is provided at the edge of the ratchet assembly 2. The limiting block 19 is located in the local area formed between the baffle 18 and the clutch linkage pin 8-2 in the clutch linkage 8, which restricts the movement range of the ratchet assembly 2, ensures that it works in a specific area, and improves the safety of the system.

[0039] A ratchet assembly 3 is mounted on the base plate 1 via a ratchet rivet shaft 5, and a ratchet protrusion 3-1 is mounted on one end of the ratchet assembly 3.

[0040] like Figure 1As shown, an unlocking rocker arm 6 is mounted on the base plate 1 via an unlocking rocker arm rivet shaft 10. One end of the unlocking rocker arm 6 has a rivet shaft hole, and the other end has a notch. A pawl protrusion 3-1 is engaged in the notch, allowing the unlocking rocker arm 6 to precisely control the movement of the pawl protrusion 3-1 and achieve the unlocking function. One side of the unlocking rocker arm 6 is provided with an extension limiting part 20 extending toward the clutch rocker arm rivet shaft 12, which limits the range of motion of the clutch linkage pin 8-2 in the clutch linkage 8, ensuring that it works within a specific area and improving the safety of the system.

[0041] A limiting area is formed between the extended limiting part 20 and the limiting block 19 in the ratchet assembly 2, and the clutch linkage pin 8-2 in the clutch linkage 8 rotates within this limiting area.

[0042] like Figure 5 As shown, an emergency rocker arm 14 is also installed via an emergency rocker arm rivet 15. The emergency rocker arm rivet 15 is installed on the upper plate that mates with the base plate 1. One end of the emergency rocker arm 14 is a handle end, and the other end is a toggle end. The toggle end is located near the pawl protrusion 3-1 and is used to toggle the pawl protrusion 3-1, thereby driving the pawl assembly 3 to rotate clockwise. After the pawl assembly 2 rotates clockwise, it will move away from the pawl rivet 5. The ratchet assembly 2 can rotate clockwise by the spring return force, thus completing the unlocking.

[0043] In addition, a limiting protrusion 21 is provided on the inner wall of the base plate 1 to limit the rotation range of the bevel gear 7.

[0044] Movement process:

[0045] If an accident occurs during the automatic start-up process and the automatic start-up fails to return to its original position, such as... Figure 1 and Figure 8 As shown, manual emergency unlocking is required from inside the vehicle. Manually move the clutch rocker arm 9 to rotate clockwise around the clutch rocker arm rivet shaft 12. When the clutch rocker arm unlocking arc surface 9-1 disengages from the clutch linkage clutch shaft 8-1, the clutch linkage 8 rotates counterclockwise around the clutch linkage rivet shaft 11 until the clutch linkage clutch shaft 8-1 contacts the clutch rocker arm limit latch 9-2 and remains in this position.

[0046] Simultaneously, the emergency rocker arm 14 is moved to disengage the pawl assembly 3 from the ratchet assembly 2, allowing the ratchet assembly 2 to rotate clockwise back to the unlocked position. Figure 5 As shown.

[0047] On the other hand, when the ratchet assembly 2 returns to the unlocked position, the bevel gear 7 rotates counterclockwise around the bevel gear rivet shaft 13, as... Figure 6As shown; when the clutch linkage pin 8-2 contacts the unlocking rocker arm limit point 6-1, the clutch linkage 8 will rotate clockwise around the clutch linkage rivet 11 until the clutch linkage 8 returns to its original position. At this time, the clutch linkage pin 8-1 coincides with the unlocking arc surface 9-1 of the clutch rocker arm, as shown. Figure 7 As shown.

[0048] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A self-priming tailgate lock clutch mechanism for automobiles, characterized in that: It includes a base plate (1), bevel gears (7) and clutch linkage (8). The bevel gears (7) are riveted to the base plate (1) by bevel gear riveting shaft (13). The bevel gears (7) and clutch linkage (8) are riveted to each other by clutch linkage riveting shaft (11). A clutch rocker arm (9) that cooperates with the clutch linkage (8) is riveted to the base plate (1) by clutch rocker arm riveting shaft (12). The clutch rocker arm (9) includes a rocker arm body (9-3). One side of the rocker arm body (9-3) is provided with a limiting arm (9-4) and a limiting protrusion (9-5). There is a gap between the limiting arm (9-4) and the limiting protrusion (9-5) to form a bayonet (9-6). The other side of the rocker arm body (9-3) is provided with a second rocker arm (9-7). One end of the rocker arm body (9-3) is provided with a downwardly bent part (9-8). The bent part (9-8) is sleeved on the clutch rocker arm rivet shaft (12).

2. The automotive self-priming tailgate lock clutch mechanism according to claim 1, characterized in that: The limiting arm (9-4) includes a horizontal straight arm (9-4-1) and a hook arm (9-4-2). The inner transition surface at the connection between the horizontal straight arm (9-4-1) and the hook arm (9-4-2) is the clutch rocker arm unlocking arc surface (9-1). The inner side of the end of the hook arm (9-4-2) has a clutch rocker arm limiting slot (9-2).

3. The automotive self-priming tailgate lock clutch mechanism according to claim 1, characterized in that: A torsion spring (16) is fitted on the shaft of the clutch rocker arm rivet shaft (12), and the bent part (9-8) of the clutch rocker arm (9) is located below the torsion spring (16).

4. The automobile self-priming tailgate lock clutch mechanism according to claim 1, characterized in that: The bending part (9-8) includes a straight rod part and a cross rod part, and the surface of the cross plate part is provided with mounting holes (17).

5. The automotive self-priming tailgate lock clutch mechanism according to claim 1, characterized in that: One end of the clutch link (8) is bent downward to form a bent end. A first opening (8-3) is provided on the bent end. A clutch link pin (8-2) is installed in the first opening (8-3). A second opening (8-4) is provided on the other end of the clutch link (8). A clutch link clutch shaft (8-1) is installed in the second opening (8-4). A riveting hole (8-5) is provided in the middle of the clutch link (8).

6. The automotive self-priming tailgate lock clutch mechanism according to claim 1, characterized in that: The base plate (1) is equipped with a ratchet assembly (2) mounted by a ratchet rivet shaft (4). The base plate (1) is provided with a baffle (18). A limiting block (19) is provided at the edge of the ratchet assembly (2). The limiting block (19) is located in the area formed between the baffle (18) and the clutch linkage pin (8-2) in the clutch linkage (8).

7. The automotive self-priming tailgate lock clutch mechanism according to claim 1, characterized in that: The base plate (1) is equipped with a pawl assembly (3) mounted by a pawl rivet shaft (5), and a pawl protrusion (3-1) is mounted on one end of the pawl assembly (3).

8. The automobile self-priming tailgate lock clutch mechanism according to claim 7, characterized in that: The base plate (1) is equipped with an unlocking rocker arm (6) mounted by an unlocking rocker arm rivet shaft (10). One end of the unlocking rocker arm (6) is provided with a rivet shaft hole, and the other end of the unlocking rocker arm (6) is provided with a notch. A pawl protrusion (3-1) is engaged in the notch. One side of the unlocking rocker arm (6) is provided with an extension limiting part (20) extending toward the clutch rocker arm rivet shaft (12).

9. The automobile self-priming tailgate lock clutch mechanism according to claim 8, characterized in that: The extended limiting part (20) and the limiting block (19) in the ratchet assembly (2) form a limiting area, and the clutch linkage pin (8-2) in the clutch linkage (8) rotates within this limiting area.

10. The automotive self-priming tailgate lock clutch mechanism according to claim 7, characterized in that: An emergency rocker arm (14) is also installed via an emergency rocker arm rivet (15). One end of the emergency rocker arm (14) is a handle end, and the other end of the emergency rocker arm (14) is a toggle end. The toggle end is located near the pawl protrusion (3-1) and is used to toggle the pawl protrusion (3-1).

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