Driving mechanism of car door lock

Abstract

The utility model relates to a driving mechanism of a car door lock, which comprises a transmission assembly, a locking connecting rod and a locking rocker arm, the center of the locking connecting rod is rotatably connected in a lock body by utilizing a pin shaft, and the transmission assembly is matched with the locking connecting rod for driving the locking connecting rod to deflect; the center of the locking rocker arm is also rotationally connected into the lock body through a pin shaft, and the top of the locking rocker arm is connected with the locking connecting rod in a hooking mode, so that the position state of the locking rocker arm can be adjusted through deflection movement of the locking connecting rod, and the locking rocker arm is used for opening or closing the lock body. Through cooperative arrangement of the transmission assembly, the locking connecting rod and the locking rocker arm, when the driving mechanism of the car door lock is used, the driving mechanism has the advantages of being simple in structure, stable in cooperative structure, stable and effective in transmission, long in service life, free of large impact noise and good in user experience.

Description

Technical Field

[0001] This application relates to the technical field of vehicle door locks, and in particular to a drive mechanism for a vehicle door lock. Background Technology

[0002] Most car central locking systems consist of a master switch and individual switches. The master switch is installed on the door closest to the driver, allowing the driver to lock or unlock all doors. Individual switches are installed on each of the other doors, allowing individual control of each door.

[0003] Currently, the structure of controlling the doors through individual switches on each door is complex, and the transmission efficiency between the various components is not high. Due to the frequent interaction of forces, they are easily damaged. Once damaged, the entire central locking system needs to be replaced, resulting in high maintenance and operating costs. Utility Model Content

[0004] To address the issues of complex structure, low transmission efficiency between components, and high maintenance and operating costs associated with vehicle door locks, this application provides a drive mechanism for a vehicle door lock.

[0005] The driving mechanism for a car door lock provided in this application adopts the following technical solution:

[0006] A drive mechanism for a car door lock includes a transmission assembly, a locking link, and a locking rocker arm. The center of the locking link is rotatably connected to the lock body via a pin, and the transmission assembly cooperates with the locking link to drive the deflection of the locking link. The center of the locking rocker arm is also rotatably connected to the lock body via a pin, and the top of the locking rocker arm is hooked to the locking link, so that the deflection of the locking link can adjust the position of the locking rocker arm, allowing the locking rocker arm to be used for opening or closing the lock body.

[0007] Furthermore, the transmission assembly includes a worm and a worm wheel segment, which mesh with each other, and the worm wheel segment is formed on the outer wall of the locking link. The worm is rotatably mounted in the lock body by a motor drive, and the worm wheel segment is formed on the upper left of the outer wall of the locking link, with a gap between the worm wheel segment and the pawl of the locking link.

[0008] Furthermore, the transmission assembly includes a rotating rod and a pushing rod. One end of the pushing rod is sleeved on and rotatably connected to a pin passing through the locking link. The other end of the pushing rod is rotatably connected to the adjacent end of the rotating rod. The other end of the rotating rod is rotatably mounted in the lock body by a motor drive. The locking link is securely connected to a pin passing through its center, and the pin passing through the locking link is rotatably connected to the lock body.

[0009] Furthermore, the locking link has a protruding arm on the side near the transmission assembly. The protruding arm is used to connect and cooperate with the transmission assembly. The transmission assembly includes a linear drive source and a support column. The output end of the linear drive source is rotatably connected to the protruding arm. The top of the linear drive source is rotatably connected to the lock body by the support column. The linear drive source is configured as an electric push rod, a hydraulic push rod, or a pneumatic push rod.

[0010] The beneficial technical effects of this application are as follows: through the coordinated arrangement of the transmission components, locking linkage, and locking rocker arm, the drive mechanism of the car door lock has the advantages of simple connection structure, stable cooperation structure, smooth and effective transmission, long service life, no large impact noise, and good user experience when in use. Attached Figure Description

[0011] Figure 1 This is an exploded view of the drive mechanism of the car door lock;

[0012] Figure 2 This is a schematic diagram of the cooperation structure between the transmission component and the locking link in Embodiment 2;

[0013] Figure 3 This is a schematic diagram of the cooperation structure between the transmission component and the locking link in Embodiment 3.

[0014] Reference numerals: 10, transmission assembly; 11, rotating rod; 12, push rod; 13, linear drive source; 14, support column; 20, locking link; 21, convex arm; 30, locking rocker arm. Detailed Implementation

[0015] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] This application discloses a drive mechanism for a car door lock. (Refer to...) Figure 1The drive mechanism of the car door lock includes a transmission assembly 10, a locking link 20, and a locking rocker arm 30. The center of the locking link 20 is rotatably connected to the lock body via a pin. The transmission assembly 10 cooperates with the locking link 20 to drive its deflection. The center of the locking rocker arm 30 is also rotatably connected to the lock body via a pin, and the top of the locking rocker arm 30 is hooked to the locking link 20, allowing the deflection of the locking link 20 to adjust the position of the locking rocker arm 30, thus enabling it to open or close the lock body. Through the coordinated arrangement of the transmission assembly 10, the locking link 20, and the locking rocker arm 30, the drive mechanism of this car door lock offers advantages such as simple structure, stable fit, smooth and efficient transmission, long service life, minimal impact noise, and a superior user experience. Example 1

[0017] See Figure 1 In this embodiment, the transmission assembly 10 includes a worm and a worm wheel segment, which mesh with each other. The worm wheel segment is formed on the outer wall of the locking link 20, and is located on the upper left side of the outer wall of the locking link 20, so that there is a gap between the worm wheel segment and the pawl of the locking link 20 to avoid interference. In addition, the worm is rotatably mounted in the lock body by a motor drive. When the worm is driven to rotate, it can drive the worm wheel segment and the locking link 20 to deflect. When the locking link 20 deflects, its pawl can drive the locking rocker arm 30 to deflect. Example 2

[0018] See Figure 2 The transmission assembly 10 includes a rotating rod 11 and a pushing rod 12. One end of the pushing rod 12 is sleeved on and rotatably connected to a pin passing through the locking link 20, and the other end of the pushing rod 12 is rotatably connected to the adjacent end of the rotating rod 11. The other end of the rotating rod 11 is rotatably mounted in the lock body by a motor. Thus, when the rotating rod 11 is driven to rotate by the motor, the rotating rod 11 can drive the pushing rod 12 to move, and cause the pushing rod 12 to drive the pin connected to the locking link 20 to deflect.

[0019] In this embodiment, the locking link 20 needs to be securely connected to the pin passing through its center, and the pin passing through the locking link 20 needs to be rotatably connected to the lock body so that when the pin deflects, it can drive the locking link 20 to deflect, and when the locking link 20 deflects, its pawl can drive the locking rocker arm 30 to deflect. Example 3

[0020] See Figure 3The locking link 20 has a protruding arm 21 on the side near the transmission assembly 10, which is used to connect and engage with the transmission assembly 10. In this embodiment, the transmission assembly 10 includes a linear drive source 13 and a support column 14. The output end of the linear drive source 13 is rotatably connected to the protruding arm 21, and the top of the linear drive source 13 is rotatably connected to the lock body via the support column 14. Thus, when the output end of the linear drive source 13 moves telescopically, it can push the protruding arm 21, causing the locking link 20 to deflect. When the locking link 20 deflects, its pawl can drive the locking rocker arm 30 to deflect.

[0021] In this embodiment, the linear drive source 13 can be a drive source with an output end capable of linear motion, such as an electric actuator, hydraulic actuator, or pneumatic actuator, which is already available in the prior art. Wherein:

[0022] An electric linear actuator mainly consists of a motor, a linear actuator, and a control device, enabling remote and centralized control. The structure of an electric linear actuator primarily includes:

[0023] Drive motor: Provides the power source.

[0024] Reduction gear: Used to reduce the speed of the motor and increase the output torque.

[0025] Screw and nut: convert the rotational motion of the motor into linear motion.

[0026] Guide sleeve, push rod, and slide: guide and support the push rod to ensure linear motion.

[0027] Spring: Provides cushioning and reset functions. Housing: Protects the internal mechanisms from dust and moisture intrusion.

[0028] Micro switch: Used to control the stroke and speed of the electric linear actuator.

[0029] A hydraulic actuator mainly consists of an actuator (cylinder), a control mechanism (hydraulic control valve assembly), and a power source (oil pump, motor, etc.). Its structural characteristics are as follows:

[0030] Hydraulic cylinder: As an actuator, it converts hydraulic energy into mechanical energy and drives the piston rod to move linearly.

[0031] Hydraulic control valve assembly: including relief valve, suction check valve, speed control valve, etc., is used to control the flow direction, pressure and flow rate of hydraulic oil, thereby achieving precise control of the movement of the hydraulic cylinder.

[0032] Oil pump motor: As a power source, it provides the pressure and flow of hydraulic oil.

[0033] As a common linear drive device, the basic structure of a pneumatic actuator includes:

[0034] Cylinder: The main body of the pneumatic actuator, filled with compressed gas. The shape and size of the cylinder can be customized according to application requirements.

[0035] Piston: It moves inside the cylinder, converting air pressure energy into mechanical energy, and pushing the connecting rod to move in a straight line.

[0036] Connecting rod: Connects the piston to external equipment to transmit power.

[0037] The system of the present invention may further include a control system for controlling the operation of the aforementioned motor or linear drive source to automatically operate the locking linkage and locking rocker arm. It should be understood that the control system is not particularly limited and can be implemented using existing control techniques, which will not be elaborated upon here.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A drive mechanism for a car door lock, characterized in that, The lock includes a transmission assembly (10), a locking link (20), and a locking rocker arm (30). The center of the locking link (20) is rotatably connected to the lock body by a pin. The transmission assembly (10) cooperates with the locking link (20) to drive the deflection of the locking link (20). The center of the locking rocker arm (30) is also rotatably connected to the lock body by a pin. The top of the locking rocker arm (30) is hooked to the locking link (20), so that the deflection of the locking link (20) can adjust the position of the locking rocker arm (30), so that the locking rocker arm (30) is used to open or close the lock body.

2. The driving mechanism for a car door lock according to claim 1, characterized in that, The transmission assembly (10) includes a worm and a worm wheel segment, which mesh with each other, and the worm wheel segment is formed on the outer wall of the locking link (20). The worm is rotatably mounted in the lock body by a motor drive.

3. The driving mechanism for a car door lock according to claim 2, characterized in that, The worm gear segment is formed on the upper left side of the outer wall of the locking link (20), and there is a gap between the worm gear segment and the pawl of the locking link (20).

4. The driving mechanism for a car door lock according to claim 1, characterized in that, The transmission assembly (10) includes a rotating rod (11) and a pushing rod (12). One end of the pushing rod (12) is sleeved on a pin that passes through the locking link (20) and is rotatably connected thereto. The other end of the pushing rod (12) is rotatably connected to the adjacent end of the rotating rod (11). The other end of the rotating rod (11) is rotatably mounted in the lock body by a motor drive.

5. The driving mechanism for a car door lock according to claim 4, characterized in that, The locking link (20) is securely connected to a pin passing through its center, and the pin passing through the locking link (20) is rotatably connected to the lock body.

6. The driving mechanism for a car door lock according to claim 1, characterized in that, The locking link (20) has a protruding arm (21) on the side near the transmission assembly (10), and the protruding arm (21) is used to connect and cooperate with the transmission assembly (10).

7. The driving mechanism for a car door lock according to claim 6, characterized in that, The transmission assembly (10) includes a linear drive source (13) and a support column (14). The output end of the linear drive source (13) is rotatably connected to the convex arm (21), and the top of the linear drive source (13) is rotatably connected to the lock body by the support column (14).

8. The driving mechanism for a car door lock according to claim 7, characterized in that, The linear drive source (13) is configured as an electric actuator, a hydraulic actuator, or a pneumatic actuator.

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