Pickup truck tailgate door lock

Abstract

The utility model relates to a pickup rear apron door lock and relates to the field of automobile door lock. The technical scheme comprises an executor assembly arranged on a cover plate, which comprises a sealed cavity formed by an executor shell and an executor box cover, a motor, a worm installed on the power output end of the motor and a worm wheel in meshing transmission with the worm in the sealed cavity, and the turbine shaft of the worm wheel extends to the outside of the sealed cavity and is connected with an electric opening rocker arm. The lock body assembly comprises a ratchet linkage plate rotatably arranged on the cover plate, a ratchet wheel and a ratchet rotatably arranged between the bottom plate and the cover plate, and a mechanical unlocking rocker arm rotatably arranged on the bottom plate. The electric opening rocker arm is in transmission connection with the ratchet linkage plate, the mechanical unlocking rocker arm is in transmission connection with the ratchet linkage plate, and the ratchet linkage plate is in transmission connection with the ratchet. In this case, the transmission structures of the mechanical unlocking and the electric opening are independently designed, do not interfere with each other, have high reliability, and the worm and worm gear transmission structure has small noise.

Description

Technical Field

[0001] This utility model relates to the field of automotive door lock technology, and in particular to a pickup truck rear panel door lock. Background Technology

[0002] With the upgrading of the automotive industry towards intelligence and connectivity, users' demands for the convenience and security of vehicle operation are increasing, making the application of electronic control technology in door lock systems a trend. For pickup trucks, the tailgate serves as a core cargo passage, and its door lock performance directly affects the vehicle's practicality. However, most pickup truck tailgate door locks currently suffer from numerous problems. Traditional mechanical locks require manual operation and are prone to jamming and malfunction due to wear, resulting in high maintenance costs and failing to meet users' demands for efficient use. Even with electronic control door opening technology, existing solutions have significant shortcomings.

[0003] The shortcomings of existing electronic door opening technology are as follows: First, the transmission structure is poorly designed, resulting in loud noise during operation and affecting the user experience; second, the transmission structures of mechanical and electric unlocking are not designed independently, making them prone to mutual interference, leading to low reliability and frequent unlocking failures. Summary of the Invention

[0004] The purpose of this utility model is to provide a pickup truck rear panel door lock to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A pickup truck tailgate lock, comprising: An actuator assembly, disposed on a cover plate, includes a sealed cavity formed by an actuator housing and an actuator cover. Within the sealed cavity are a motor, a worm gear mounted on the power output end of the motor, and a worm wheel meshing with the worm gear. The worm wheel's worm shaft extends to the outside of the sealed cavity and is connected to an electrically operated rocker arm. The lock body assembly includes a pawl linkage plate rotatably disposed on the cover plate, a ratchet and pawl rotatably disposed between the base plate and the cover plate, and a mechanical unlocking rocker arm rotatably disposed on the base plate. Specifically, the first linkage part of the electric unlocking rocker arm is driven to the second linkage part of the pawl linkage plate, the third linkage part of the mechanical unlocking rocker arm is driven to the fourth linkage part of the pawl linkage plate, and the fifth linkage part of the pawl linkage plate is driven to the sixth linkage part of the pawl.

[0006] In one possible implementation, the electrically operated rocker arm has a protruding post, the ratchet linkage plate has an electrically operated unlocking bend, and the protruding post is connected to the electrically operated unlocking bend in a transmission manner.

[0007] In one possible implementation, the mechanical unlocking rocker arm has a mechanical unlocking bend, and the pawl linkage plate has a pawl linkage plate pin, with the mechanical unlocking bend and the pawl linkage plate pin being connected in a driving manner.

[0008] In one possible implementation, the pawl linkage plate has a pawl linkage groove, the pawl has a pawl pin, and the pawl linkage groove is connected to the pawl pin in a driving connection.

[0009] In one possible implementation, the mechanical unlocking rocker arm is provided with a mechanical unlocking rocker arm return spring for resetting, and the worm gear is provided with a worm gear return spring for resetting.

[0010] In one possible implementation, a sealing ring for sealing is provided on the inner side of the sealed cavity, located on the outer periphery of the turbine shaft of the worm gear.

[0011] In one possible implementation, the electrically operated rocker arm is mounted to the turbine shaft of the worm gear using self-tapping screws.

[0012] In one possible implementation, the pawl linkage plate is rotatably riveted to the cover plate via a pawl linkage plate riveting shaft, and the mechanical unlocking rocker arm is rotatably riveted to the base plate via a mechanical unlocking rocker arm riveting shaft.

[0013] In one possible implementation, the pawl is rotatably riveted between the base plate and the cover plate via a pawl rivet shaft, and the ratchet is rotatably riveted between the base plate and the cover plate via a ratchet rivet shaft.

[0014] In one possible implementation, the actuator housing and the actuator cover are formed into a sealed cavity by laser welding or ultrasonic welding.

[0015] The beneficial effects of the technical solution provided by this utility model include at least the following: This technical solution includes an actuator assembly mounted on a cover plate, comprising a sealed cavity formed by an actuator housing and an actuator cover. Within the sealed cavity are a motor, a worm gear mounted on the motor's power output end, and a worm wheel meshing with the worm gear. The worm wheel's worm shaft extends to the outside of the sealed cavity and connects to an electrically operated rocker arm. It also includes a lock body assembly comprising a pawl linkage plate rotatably mounted on the cover plate, a ratchet and pawl rotatably mounted between a base plate and the cover plate, and a mechanical unlocking rocker arm rotatably mounted on the base plate. Specifically, the first linkage part of the electrically operated rocker arm is driven by the second linkage part of the pawl linkage plate, the third linkage part of the mechanical unlocking rocker arm is driven by the fourth linkage part of the pawl linkage plate, and the fifth linkage part of the pawl linkage plate is driven by the sixth linkage part of the pawl. In this configuration, the transmission structures for mechanical and electric unlocking are independently designed, without interference, resulting in high reliability and low noise from the worm gear transmission structure. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] Figure 1 This is a front view schematic diagram of a pickup truck rear panel door lock provided in an exemplary embodiment of the present invention.

[0018] Figure 2 This diagram shows a side cross-sectional view of a pickup truck rear panel door lock provided in an exemplary embodiment of the present invention.

[0019] Figure 3 An axonometric view of a pickup truck rear panel door lock provided in an exemplary embodiment of the present invention is shown.

[0020] Figure 4 The diagram shows a rear view of a pickup truck rear panel door lock provided in an exemplary embodiment of the present invention.

[0021] Figure 5 A schematic diagram of the mechanical unlocking rocker arm of a pickup truck rear panel door lock provided in an exemplary embodiment of the present invention is shown.

[0022] Figure 6 A schematic diagram of the pawl linkage plate of a pickup truck rear panel door lock provided in an exemplary embodiment of the present invention is shown.

[0023] Figure 7 A schematic diagram of the structure of the electric rocker arm of the pickup truck rear panel door lock provided in an exemplary embodiment of the present invention is shown.

[0024] In the picture: 1. Electric motor; 2. Worm gear; 3. Worm gear; 4. Worm gear return spring; 5. Actuator housing; 6. Actuator housing cover; 7. Electric rocker arm; 7-1. Electric rocker arm convex post; 8. Sealing ring; 9. Self-tapping screws; 10. Cover plate; 11. Ratchet linkage plate riveting shaft; 12. Pawl linkage plate; 12-1. Electric unlocking bending plate; 12-2. Pawl linkage groove; 13. Base plate; 14. Mechanical unlocking rocker arm; 14-1. Mechanical unlocking bending arm; 15. Mechanical unlocking rocker arm return spring; 16. Mechanical unlocking rocker arm riveting shaft; 17. Claws; 18. Ratcheted rivet shaft; 19. Pawl pin; 20. Ratchet; 21. Ratchet riveting pin; 22. Pawl linkage plate pin. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In this specification, identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings of this utility model, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions towards or away from a specific component, respectively. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more.

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Please see Figures 1 to 4 The pickup truck tailgate lock includes: an actuator assembly mounted on a cover plate 10, comprising a sealed cavity formed by an actuator housing 5 and an actuator cover 6, wherein a motor 1, a worm gear 2 mounted on the power output end of the motor 1, and a worm wheel 3 meshing with the worm gear 2 are disposed within the sealed cavity, and the worm wheel 3's worm shaft extends to the outside of the sealed cavity and is connected to an electric unlocking rocker arm 7; and a lock body assembly including a pawl linkage plate 12 rotatably mounted on the cover plate 10, a ratchet 20 and a pawl 17 rotatably mounted between a base plate 13 and the cover plate 10, and a mechanical unlocking rocker arm 14 rotatably mounted on the base plate 13; wherein the first linkage part of the electric unlocking rocker arm 7 is drivenly connected to the second linkage part of the pawl linkage plate 12, the third linkage part of the mechanical unlocking rocker arm 14 is drivenly connected to the fourth linkage part of the pawl linkage plate 12, and the fifth linkage part of the pawl linkage plate 12 is drivenly connected to the sixth linkage part of the pawl 17.

[0029] In this embodiment, the sealed cavity provides protection for components such as the motor and worm gear. The motor power is transmitted to the electric unlocking rocker arm via the worm gear and worm wheel reduction, forming an electric drive chain. The lock body assembly uses a rotatable pawl linkage plate as an intermediate hub to receive power from both the electric unlocking rocker arm and the mechanical unlocking rocker arm. Regardless of whether it is electric or mechanical drive, the pawl is ultimately driven by the pawl linkage plate, causing the pawl to separate from the ratchet. This design ensures that the two unlocking methods are independent and reliable, while also simplifying the structure by sharing a linkage path.

[0030] For details, please refer to Figure 6 and Figure 7 The electric rocker arm 7 has a protruding post 7-1, and the ratchet linkage plate 12 has an electric unlocking bend 12-1. The protruding post 7-1 is connected to the electric unlocking bend 12-1 in a transmission connection.

[0031] In this embodiment, during electric unlocking, the electric unlocking rocker arm rotates, and its protruding post rotates accordingly, contacting and pushing the electric unlocking bend of the pawl linkage plate. Through this transmission, the pawl linkage plate rotates, thereby causing subsequent components to move, realizing the separation of the pawl and ratchet to complete unlocking.

[0032] For more details, see [link to relevant documentation]. Figure 5 and Figure 6 The mechanical unlocking rocker arm 14 has a mechanical unlocking bend 14-1, and the pawl linkage plate 12 has a pawl linkage plate pin 22. The mechanical unlocking bend 14-1 and the pawl linkage plate pin 22 are connected in a transmission manner.

[0033] In this embodiment, during mechanical unlocking, the mechanical unlocking rocker arm rotates, and its mechanical unlocking bend moves accordingly, contacting and pushing the pawl linkage plate pin of the pawl linkage plate. Through this transmission, the pawl linkage plate rotates, thereby causing subsequent components to move, realizing the separation of the pawl from the ratchet and completing the unlocking.

[0034] Specifically, see Figure 4 and Figure 6 The pawl linkage plate 12 has a pawl linkage groove 12-2, and the pawl 17 has a pawl pin 19. The pawl linkage groove 12-2 and the pawl pin 19 are connected in a transmission manner.

[0035] In this embodiment, the pawl linkage groove on the pawl linkage plate and the pawl pin on the pawl form a transmission connection. When the pawl linkage plate rotates, the pawl linkage groove will drive the pawl pin to move, thereby causing the pawl to rotate and separate from the ratchet, thus completing the unlocking action.

[0036] More specifically, see Figure 3 and Figure 5 The mechanical unlocking rocker arm 14 is equipped with a mechanical unlocking rocker arm return spring 15 for resetting; see reference. Figure 1 and Figure 2 The worm gear 3 is equipped with a worm gear return spring 4 for resetting.

[0037] In this embodiment, the return spring on the mechanical unlocking rocker arm can drive the rocker arm to reset after mechanical unlocking. The return spring on the worm gear can return the worm gear to its original position after electric unlocking. Both provide reset force to the mechanical and electric drive components respectively, ensuring that each component returns to its initial state after unlocking and guaranteeing normal operation next time.

[0038] Further, see Figure 2 A sealing ring 8 is provided on the inner side of the sealed cavity, located on the outer periphery of the turbine shaft of the worm gear 3. The actuator housing 5 and the actuator cover 6 are formed into a sealed cavity by laser welding or ultrasonic welding. The electrically operated rocker arm 7 is mounted on the turbine shaft of the worm gear 3 by self-tapping screws 9.

[0039] In this embodiment, the sealed cavity is formed by laser or ultrasonic welding of the actuator housing and the actuator cover. The sealing ring on the outer periphery of the worm gear shaft enhances the seal. The welding and the sealing ring work together to prevent dust and moisture from entering and ensure stable operation of the components.

[0040] Furthermore, see Figure 3 and Figure 4The pawl linkage plate 12 is rotatably riveted to the cover plate 10 via the pawl linkage plate riveting shaft 11, and the mechanical unlocking rocker arm 14 is rotatably riveted to the base plate 13 via the mechanical unlocking rocker arm riveting shaft 16. The pawl 17 is rotatably riveted between the base plate 13 and the cover plate 10 via the pawl riveting shaft 18, and the ratchet 20 is rotatably riveted between the base plate 13 and the cover plate 10 via the ratchet riveting shaft 21.

[0041] In this embodiment, the pawl linkage plate is rotatably riveted to the cover plate via a riveting shaft, and the mechanical unlocking rocker arm is mounted on the base plate in the same manner. The pawl and ratchet are riveted between the base plate and the cover plate, and both can rotate around their respective riveting shafts. This riveting method not only fixes the installation position of each component but also ensures their flexible rotation, providing a stable structural foundation for the power transmission during mechanical and electric unlocking and ensuring smooth linkage.

[0042] Next, the working principle of a pickup truck rear panel door lock involved in the embodiments of this utility model will be explained.

[0043] During electric unlocking, the motor power is transmitted to the worm wheel via the worm gear. The worm wheel drives the electric unlocking rocker arm to rotate synchronously through the self-tapping screw. The protrusion of the electric unlocking rocker arm rotates accordingly, making contact with the electric unlocking bend of the pawl linkage plate and pushing it to rotate around the rivet shaft of the pawl linkage plate. At this time, the pawl linkage groove on the pawl linkage plate drives the pawl pin to move, causing the pawl to rotate around its own pawl rivet shaft, and finally disengage from the ratchet, completing the unlocking.

[0044] During mechanical unlocking, the mechanical wire pull drives the mechanical unlocking rocker arm to rotate around the mechanical unlocking rocker arm rivet shaft on the base plate. Its mechanical unlocking bend pushes the pawl linkage plate pin shaft of the pawl linkage plate, which in turn drives the pawl linkage plate to rotate. The subsequent transmission path is the same as in the electric mode. Through the cooperation of the pawl linkage groove and the pawl pin shaft, the pawl disengages from the ratchet, thus unlocking.

[0045] After the lock is unlocked, the worm wheel return spring on the worm wheel drives the worm wheel and the electric unlocking rocker arm to reset, while the mechanical unlocking rocker arm returns to its original position under the action of its own mechanical unlocking rocker arm return spring.

[0046] In summary, this technical solution includes an actuator assembly mounted on a cover plate, comprising a sealed cavity formed by the actuator housing and the actuator cover. Within the sealed cavity are a motor, a worm gear mounted on the motor's power output end, and a worm wheel meshing with the worm gear. The worm wheel's worm shaft extends to the outside of the sealed cavity and connects to an electrically operated rocker arm. It also includes a lock body assembly comprising a pawl linkage plate rotatably mounted on the cover plate, a ratchet and pawl rotatably mounted between the base plate and the cover plate, and a mechanical unlocking rocker arm rotatably mounted on the base plate. Specifically, the first linkage part of the electrically operated rocker arm is driven by the second linkage part of the pawl linkage plate, the third linkage part of the mechanical unlocking rocker arm is driven by the fourth linkage part of the pawl linkage plate, and the fifth linkage part of the pawl linkage plate is driven by the sixth linkage part of the pawl. In this configuration, the transmission structures for mechanical and electric unlocking are independently designed, without interference, resulting in high reliability and low noise from the worm gear transmission structure.

[0047] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0048] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A pickup truck rear panel door lock, characterized in that, include: An actuator assembly, disposed on a cover plate (10), includes a sealed cavity formed by an actuator housing (5) and an actuator cover (6). Within the sealed cavity are a motor (1), a worm gear (2) mounted on the power output end of the motor (1), and a worm wheel (3) meshing with the worm gear (2). The worm wheel (3) has its turbine shaft extending to the outside of the sealed cavity and connected to an electrically operated rocker arm (7). The lock body assembly includes a pawl linkage plate (12) rotatably disposed on the cover plate (10), a ratchet (20) and a pawl (17) rotatably disposed between the base plate (13) and the cover plate (10), and a mechanical unlocking rocker arm (14) rotatably disposed on the base plate (13). The first linkage part of the electric unlocking rocker arm (7) is connected to the second linkage part of the pawl linkage plate (12), the third linkage part of the mechanical unlocking rocker arm (14) is connected to the fourth linkage part of the pawl linkage plate (12), and the fifth linkage part of the pawl linkage plate (12) is connected to the sixth linkage part of the pawl (17).

2. The pickup truck rear panel door lock according to claim 1, characterized in that, The electric rocker arm (7) has a protrusion (7-1), and the ratchet linkage plate (12) has an electric unlocking bend (12-1). The protrusion (7-1) is connected to the electric unlocking bend (12-1) in a transmission connection.

3. The pickup truck rear panel door lock according to claim 1, characterized in that, The mechanical unlocking rocker arm (14) has a mechanical unlocking bend (14-1), and the pawl linkage plate (12) has a pawl linkage plate pin (22). The mechanical unlocking bend (14-1) is connected to the pawl linkage plate pin (22) in a transmission connection.

4. The pickup truck rear panel door lock according to claim 1, characterized in that, The pawl linkage plate (12) has a pawl linkage groove (12-2), and the pawl (17) has a pawl pin (19). The pawl linkage groove (12-2) and the pawl pin (19) are connected in a transmission manner.

5. The pickup truck rear panel door lock according to claim 1, characterized in that, The mechanical unlocking rocker arm (14) is provided with a mechanical unlocking rocker arm return spring (15) for resetting, and the worm wheel (3) is provided with a worm wheel return spring (4) for resetting.

6. The pickup truck rear panel door lock according to claim 1, characterized in that, A sealing ring (8) for sealing is provided on the inner side of the sealed cavity, located on the outer periphery of the turbine shaft of the worm gear (3).

7. The pickup truck rear panel door lock according to claim 1, characterized in that, The electrically operated rocker arm (7) is mounted on the turbine shaft of the worm gear (3) by a self-tapping screw (9).

8. The pickup truck rear panel door lock according to claim 1, characterized in that, The pawl linkage plate (12) is rotatably riveted to the cover plate (10) via the pawl linkage plate riveting shaft (11), and the mechanical unlocking rocker arm (14) is rotatably riveted to the base plate (13) via the mechanical unlocking rocker arm riveting shaft (16).

9. The pickup truck rear panel door lock according to claim 1, characterized in that, The pawl (17) is rotatably riveted between the base plate (13) and the cover plate (10) via the pawl rivet shaft (18), and the ratchet (20) is rotatably riveted between the base plate (13) and the cover plate (10) via the ratchet rivet shaft (21).

10. The pickup truck rear panel door lock according to any one of claims 1 to 9, characterized in that, The actuator housing (5) and the actuator cover (6) are formed into a sealed cavity by laser welding or ultrasonic welding.

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