Locking device of automobile central control door lock

Abstract

The utility model relates to the technical field of automobile locking devices, and discloses an automobile central control door lock locking device which comprises a locking device shell, a motor box is arranged on the locking device shell, a drive motor is arranged in the motor box, a connector is arranged on one side of the locking device shell, a guide sleeve is fixedly installed in the connector, and the guide sleeve is fixedly connected with the motor box. A guide sleeve is arranged in the locking device shell, a movable rod is slidably installed in the guide sleeve, an oval linkage disc used for controlling the movable rod to stretch out and draw back is arranged in the locking device shell, a tray is fixedly installed in the locking device shell, a driving shaft is rotatably installed on the tray, and the oval linkage disc is fixedly installed on the outer circle of the driving shaft. The driving shaft is controlled to rotate by 180 degrees each time, so that the oval linkage disc pushes and pulls the movable rod to stretch out and draw back, a traditional gear transmission mode is avoided for control, the mechanical wear rate is reduced, meanwhile, vibration and noise are reduced, and the effect of prolonging the service life of the fastener is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile door lock actuators, in particular to a central control door lock actuator for automobiles. Background Art

[0002] An automobile central control door lock actuator is a device used to control the state of vehicle door locks and is usually part of the vehicle safety system. Its main function is to control the vehicle door locks electronically or mechanically, enabling the driver and passengers to conveniently lock and unlock the vehicle doors through the in-vehicle central control system or remote control.

[0003] After retrieval, the application number 201310055993.8 discloses a microswitch type automobile central control door lock actuator and its production process, including: shaft circlip, actuator action output swing rod, sealing ring, return torsion spring, worm gear, locking buffer pad, actuator output shaft, sector gear, unlocking buffer block, driving cam block, worm gear rotating shaft, lower actuator housing, motor electrode, microswitch terminal, microswitch, motor, pinion gear, worm and upper actuator housing. The signal extraction mechanism of the central control door lock actuator replaces the reed and slide of the traditional actuator with a high-performance microswitch and appropriately designs and adjusts the corresponding mechanism of the actuator.

[0004] The actuator in the above technical solution is similar to the prior art, and the actuator is controlled by the transmission method of gears, worm gears and worms. The gears will wear during the movement process. The wear of the gear tooth surface affects the normal operation of the actuator. At the same time, the wear will cause the transmission efficiency to decrease and the service life to shorten, affecting the quality of the actuator.

[0005] Therefore, we propose a central control door lock actuator for automobiles. Content of the Utility Model

[0006] The utility model mainly solves the above technical problems and provides a central control door lock actuator for automobiles.

[0007] In order to achieve the above object, the utility model adopts the following technical scheme. A central control door lock actuator for automobiles includes an actuator housing, a motor box is provided on the actuator housing, a driving motor is provided in the motor box, a connector is provided on one side of the actuator housing, a guide sleeve is fixedly installed in the connector, and a movable rod is slidably installed in the guide sleeve;

[0008] Inside the latch housing, there is an oval linkage plate for controlling the telescoping of the movable rod. A tray is fixedly installed inside the latch housing. A drive shaft is rotatably installed on the tray. One end of the drive shaft away from the tray is fixedly connected to the output end of the drive motor in the motor box. The oval linkage plate is fixedly installed on the outer circle of the drive shaft. The drive motor in the motor box controls the free rotation of the drive shaft, so that the drive shaft controls the free rotation of the oval linkage plate.

[0009] Four oval chutes are provided around the outer surface of the oval linkage plate. One end of the movable rod away from the sleeve is provided with a ball shaft connection seat. A ball shaft is provided on the ball shaft connection seat. The ball shaft is movably distributed in the oval chute.

[0010] Preferably, a ball raceway is provided on the top surface of the tray.

[0011] Preferably, a support post is provided on the bottom surface of the oval linkage plate. A ball is provided at the lower end of the support post. The ball is movably distributed in the ball raceway. The oval linkage plate drives the ball to slide along the ball raceway during rotation.

[0012] Preferably, retaining edges are provided on both the upper and lower sides of the oval chute.

[0013] Preferably, a sleeve is fixedly installed at the outer end of the movable rod. A connecting ear is provided at the outer end of the sleeve. By controlling the telescoping of the movable rod, the movable rod controls the lifting and lowering of the door through the cooperation of the connecting ear and the external connecting rod, thereby controlling the locking of the car door.

[0014] Preferably, multiple groups of wires for connecting with an external controller and a power source are provided on the latch housing.

[0015] Beneficial Effects

[0016] The present utility model provides a latch for a car central control door lock. It has the following beneficial effects:

[0017] (1). For this latch of the car central control door lock, by controlling the drive shaft to rotate 180 degrees each time, the oval linkage plate pushes and pulls the movable rod to extend and retract back and forth. The oval linkage plate controls the movable rod, avoiding the traditional control method using gear transmission, reducing the mechanical wear rate, and also reducing vibration and noise, achieving the effect of improving the service life of the latch.

[0018] (2). For this latch of the car central control door lock, the oval linkage plate drives the ball to slide along the ball raceway during rotation. The support post provided supports the oval linkage plate, achieving the effect of improving the smoothness of the oval linkage plate during rotation. Description of the Drawings

[0019] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary. For those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained based on the provided drawings.

[0020] The structures, ratios, sizes, etc. disclosed in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical substance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention.

[0021] Figure 1 Schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 Schematic diagram of the three-dimensional structure of the movable rod and the elliptical linkage disc of the present invention;

[0023] Figure 3 Schematic diagram of the three-dimensional structure of the movable rod of the present invention;

[0024] Figure 4 Schematic diagram of the three-dimensional structure of the elliptical linkage disc of the present invention.

[0025] Legend description:

[0026] 1. Latch housing; 2. Motor box; 3. Connector; 4. Movable rod; 5. Sleeve; 6. Connecting ear; 7. Wire; 8. Guide sleeve; 9. Tray; 10. Driving shaft; 11. Elliptical linkage disc; 12. Ball shaft connection seat; 13. Ball shaft; 14. Elliptical chute; 15. Baffle; 16. Support column; 17. Ball; 18. Ball groove. Specific embodiments

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0028] Embodiment: An automotive central locking latch, as Figures 1-4As shown in the figure, it includes a latch housing 1. A motor box 2 is provided on the latch housing 1. A driving motor is provided inside the motor box 2. A connector 3 is provided on one side of the latch housing 1. A guide sleeve 8 is fixedly installed inside the connector 3. A movable rod 4 is slidably installed inside the guide sleeve 8. A sleeve 5 is fixedly installed at the outer end of the movable rod 4. A connecting ear 6 is provided at the outer end of the sleeve 5. By controlling the telescopic movement of the movable rod 4, the movable rod 4 controls the lifting and lowering of the door through the cooperation with an external connecting rod, thereby controlling the door lock;

[0029] Further, an oval linkage disk 11 for controlling the telescopic movement of the movable rod 4 is provided inside the latch housing 1. A tray 9 is fixedly installed inside the latch housing 1. A driving shaft 10 is rotatably installed on the tray 9. One end of the driving shaft 10 away from the tray 9 is fixedly connected to the output end of the driving motor inside the motor box 2. The oval linkage disk 11 is fixedly installed on the outer circle of the driving shaft 10. By controlling the driving motor inside the motor box 2 to freely rotate the driving shaft 10, the driving shaft 10 controls the free rotation of the oval linkage disk 11;

[0030] Further, oval sliding grooves 14 are provided around the outer surface of the oval linkage disk 11. Baffle edges 15 are provided on both the upper and lower sides of the oval sliding grooves 14. A ball shaft connecting seat 12 is provided at the end of the movable rod 4 away from the sleeve 5. A ball shaft 13 is provided on the ball shaft connecting seat 12. The ball shaft 13 is movably distributed inside the oval sliding groove 14. By controlling the rotation of the oval linkage disk 11, the oval linkage disk 11 controls the forward and backward telescopic movement of the movable rod 4 through the ball shaft 13. By controlling the driving shaft 10 to rotate 180 degrees each time, the oval linkage disk 11 pushes and pulls the movable rod 4 to move forward and backward. By controlling the movable rod 4 through the oval linkage disk 11, the traditional control method using gear transmission is avoided, reducing the mechanical wear rate, and at the same time reducing vibration and noise;

[0031] Further, a ball bearing groove 18 is provided on the top surface of the tray 9. A supporting column 16 is provided at the bottom surface of the oval linkage disk 11. A ball bearing 17 is provided at the lower end of the supporting column 16. The ball bearing 17 is movably distributed inside the ball bearing groove 18. During the rotation of the oval linkage disk 11, the ball bearing 17 is driven to slide along the ball bearing groove 18. The supporting column 16 provided plays a supporting role for the oval linkage disk 11, improving the smoothness of the rotation of the oval linkage disk 11. Multiple groups of wires 7 are provided on the latch housing 1. The wires 7 are connected to an external controller and a power source.

[0032] The working principle of the present utility model:

[0033] By controlling the driving shaft 10 to rotate 180 degrees each time, the oval linkage disk 11 pushes and pulls the movable rod 4 to move forward and backward. By controlling the movable rod 4 through the oval linkage disk 11, the traditional control method using gear transmission is avoided, reducing the mechanical wear rate, and at the same time reducing vibration and noise.

[0034] During the rotation of the elliptical linkage disk 11, the ball 17 is driven to slide along the ball groove 18. The supporting column 16 provided plays a supporting role for the elliptical linkage disk 11, improving the smoothness of the rotation of the elliptical linkage disk 11.

[0035] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An automotive central control door lock actuator, comprising an actuator housing (1), a motor box (2) is provided on the actuator housing (1), and a drive motor is provided in the motor box (2), characterized in that: One side of the latch housing (1) is provided with a connector (3), and a guide sleeve (8) is fixedly installed inside the connector (3), and a movable rod (4) is slidably installed inside the guide sleeve (8). An oval linkage disk (11) for controlling the telescopic movement of the movable rod (4) is arranged inside the latch housing (1). A tray (9) is fixedly installed inside the latch housing (1), and a drive shaft (10) is rotatably installed on the tray (9). One end of the drive shaft (10) away from the tray (9) is fixedly connected to the output end of the drive motor inside the motor box (2), and the oval linkage disk (11) is fixedly installed on the outer circumference of the drive shaft (10). Elliptical chutes (14) are formed around the outer surface of the oval linkage disk (11). One end of the movable rod (4) away from the sleeve (5) is provided with a ball shaft connection seat (12), and a ball shaft (13) is arranged on the ball shaft connection seat (12), and the ball shaft (13) is movably distributed in the elliptical chutes (14).

2. The central control door lock actuator for an automobile according to claim 1, wherein: A ball raceway (18) is formed on the top surface of the tray (9).

3. The central control door lock actuator for a vehicle according to claim 2, characterized in that: A support post (16) is arranged on the bottom surface of the oval linkage disk (11), and a ball (17) is arranged at the lower end of the support post (16). The ball (17) is movably distributed in the ball raceway (18), and the oval linkage disk (11) drives the ball (17) to slide along the ball raceway (18) during rotation.

4. The central control door lock actuator for an automobile according to claim 1, wherein: Flanges (15) are arranged on both the upper and lower sides of the elliptical chutes (14).

5. The central control door lock actuator for an automobile according to claim 1, wherein: A sleeve (5) is fixedly installed at the outer end of the movable rod (4), and a connecting ear (6) is arranged at the outer end of the sleeve (5).

6. The central control door lock actuator for a vehicle according to claim 1, wherein: Multiple groups of wires (7) for connecting to an external controller and a power source are arranged on the latch housing (1).

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