Novel door lock central control structure

Abstract

The utility model belongs to the technical field of automobile door lock, provide a new type door lock central control structure, include: rotating part, its axis is along to the arrangement, the rotating part's circumference side is provided with first worm wheel portion and second worm wheel portion respectively, lock rocker and lock button, its axis is along y direction arrangement, its one end is provided with the third worm wheel portion that is engaged with first worm wheel portion, its other end is connected lock button through the pull line. The application utilizes lock rocker, lock button transmission to solve the lock action, can more clearly intuitive identification car door's solution lock state, also can manual dial button unlock, more convenient also safer.

Description

Technical Field

[0001] This utility model relates to the field of automotive door locks, and in particular to a novel door lock central control structure. Background Technology

[0002] The central locking system is an important component of automotive installation and convenience features. By controlling the forward and reverse rotation of the motor, it drives various transmission components to separate or engage the ratchet and pawl, thereby unlocking and closing the car doors. Utility Model Content

[0003] This utility model provides a novel door lock central control structure, which adds a rocker arm and a button to the original central control structure to transmit the locking and unlocking actions. It can more clearly and intuitively identify the lock and unlock status of the car door, and can also be unlocked by manually pressing the button, which is more convenient and safer.

[0004] This utility model provides the following technical solution: This utility model discloses a novel central control structure for a door lock, which is installed inside the outer shell of the door lock and includes: A rotating component, the axis of which is arranged along the y-direction, and a first worm gear portion and a second worm gear portion are respectively provided on the circumferential side surface of the rotating component; A motor and a worm gear, wherein the worm gear is connected to the output end of the motor and meshes with the first worm wheel portion; A locking linkage arm and an opening linkage arm are provided, with their axes arranged along the z-direction. One end of the locking linkage arm is movably connected to the rotating component, and the other end of the locking linkage arm is movably connected to the opening linkage arm. The pawl linkage arm has its axis arranged along the z-direction, and one end of it hooks with the end of the opening linkage arm that is close to the locking linkage arm. The locking rocker arm has its axis arranged along the y-direction. One end of the rocker arm is provided with a third worm gear that meshes with the first worm gear, and the other end of the rocker arm is connected to a locking button via a pull wire.

[0005] Furthermore, a notch is provided on the circumferential side of the rotating component, and a first lever is provided at one end of the locking linkage arm extending in the z-direction, the first lever being assembled in the notch.

[0006] Furthermore, a second lever is provided at the other end of the locking linkage arm near the side of the pawl linkage arm, and the second lever abuts against the side of the opening linkage arm near the pawl linkage arm.

[0007] Furthermore, it also includes: A micro-motion signal switch is disposed on one circumferential side of the rotating component. When the rotating component rotates to one side, the rotating component contacts the micro-motion signal switch, and when the rotating component rotates to the other side, the rotating component separates from the micro-motion signal switch.

[0008] Furthermore, the circumferential side of the rotating component is provided with a connected arc surface and a plane, the axis of the arc surface is located on the rotation axis of the rotating component, and the radius of the arc surface is greater than the perpendicular distance between the rotation axis and the plane. When the rotating component rotates to one side, the micro-motion signal switch contacts the arc surface; when the rotating component rotates to the other side, the micro-motion signal switch separates from the plane.

[0009] Furthermore, it also includes: A limiting block is fixed inside the outer shell, and a limiting groove is provided on the radial side of the rotating component, with the limiting block located inside the limiting groove.

[0010] Beneficial effects: The central control structure enables electric locking and unlocking functions. By using the locking rocker arm and locking button to transmit the locking and unlocking actions, the door's locking and unlocking status can be identified more clearly and intuitively. It can also be unlocked manually by pressing the button, which is more convenient and safer. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate 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, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a first-view assembly drawing of this utility model; Figure 2 This is a second-view assembly drawing of this utility model; Figure 3 This is the assembly drawing between the opening connecting arm and the pawl connecting arm; Figure 4 This is an assembly diagram of the transmission components and the micro-motion switch. In the diagram: 1-Rotating component, 1a-Rotating shaft, 1b-Arc surface, 1c-Flat surface, 101-First worm gear, 102-Second worm gear, 103-Notch, 104-Limiting groove, 2-Motor, 3-Worm, 4-Locking linkage arm, 4a-Locking linkage shaft, 401-First lever, 402-Second lever, 5-Opening linkage arm, 5a-Opening linkage shaft, 501-First hook, 6-Pawl linkage arm, 6a-Pawl linkage shaft, 601-Second hook, 7-Locking rocker arm, 7a-Locking rocker arm shaft, 701-Third worm gear, 8-Locking button, 9-Micro-motion switch, 10-Limiting block. Detailed Implementation

[0012] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0013] like Figure 1 and Figure 2 As shown, this utility model provides a novel central control structure for a door lock, which is installed inside the door lock housing and includes: a rotating component 1, whose axis is arranged along the y-direction, and a first worm gear portion 101 and a second worm gear portion 102 are respectively provided on the circumferential side of the rotating component 1; a motor 2 and a worm 3, the worm 3 being drivenly connected to the output end of the motor 2 and meshing with the first worm gear portion 101; a locking linkage arm 4 and an opening linkage arm 5, whose axes are arranged along the z-direction, one end of the locking linkage arm 4 being movably connected to the rotating component 1, and the other end of the locking linkage arm 4 being movably connected to the opening linkage arm 5; a pawl linkage arm 6, whose axis is arranged along the z-direction, and one end of which hooks with the end of the opening linkage arm 5 near the locking linkage arm 4; and a locking rocker arm 7, whose axis is arranged along the y-direction, one end of which is provided with a third worm gear portion 701 that meshes with the first worm gear portion 101, and the other end of which is connected to a locking button 8 via a pull wire.

[0014] As is easily understood, in the prior art, the locking linkage arm 4 is equipped with a locking linkage shaft 4a, the opening linkage arm 5 is equipped with an opening linkage shaft 5a, and the pawl linkage arm 6 is equipped with a pawl linkage shaft 6a, and torsion springs are installed on their respective shafts, which helps the components to reset.

[0015] In the prior art, the door lock is opened and closed by the engagement of a pawl and a ratchet, a structure that has been fully disclosed in the prior art; the engagement relationship of the linkage components (opening linkage arm 5 and pawl linkage arm 6) required for unlocking the door lock is shown in the attached figure. Figure 3 As shown, when the door lock is opened, the opening linkage arm 5 moves along the x-direction. The first hook 501 at the end of the opening linkage arm 5 hooks the second hook 601 at the end of the pawl linkage arm 6 and pushes it in the x-direction, so that the pawl linkage arm 6 rotates clockwise around its own pawl linkage axis 6a, and finally drives the pawl at the bottom of the pawl linkage arm 6 to rotate, thus opening the door lock.

[0016] With attachment Figure 1 Taking the coordinate system in the middle as an example, in this mode, the door lock is in the unlocked state. The opening linkage arm 5 and the pawl linkage arm 6 are hooked together. The locking linkage arm 4 can hook the opening linkage arm 5, and then drive the pawl below the pawl linkage arm 6 to rotate and open the door lock. The locking button 8 is located at the door for easy operation.

[0017] When locking is required, the central control structure operates as follows: Motor 2 drives worm gear 3 to rotate clockwise. Worm gear 3, through the first worm wheel 101, drives rotating component 1 to rotate clockwise around its own rotation axis 1a. Rotating component 1, on one hand, moves one end of locking linkage arm 4, causing locking linkage arm 4 to rotate counterclockwise. On the other hand, the other end of locking linkage arm 4 moves opening linkage arm 5 clockwise, causing the first hook 501 to move forward relative to the second hook 601 and move away from the second hook 601. Thus, opening linkage arm 5 and pawl linkage arm 6 are separated, and pawl linkage arm 6 cannot be rotated, so the closed state of the door lock cannot be changed, achieving the purpose of locking. At the same time, rotating component 1, through the meshing of the second worm wheel 102 and the third worm wheel 701, drives locking rocker arm 7 to rotate counterclockwise around its own locking rocker arm axis 7a, causing the other end of locking rocker arm 7 to move downward. By tightening the pull cable, the locking button 8 is pulled to visually display the locking status of the door lock.

[0018] When unlocking is required, the central control structure operates as follows: Motor 2 drives worm 3 to rotate in the opposite direction. Worm 3 drives rotating component 1 to rotate counterclockwise via first worm wheel 101. Rotating component 1, on one hand, moves the other end of locking linkage arm 4, causing linkage arm 4 to rotate clockwise, thus resetting locking linkage arm 4. Opening linkage arm 5 is reset by torsion spring, and first hook 501 re-hooks second hook 601. Thus, opening linkage arm 5 and pawl linkage arm 6 are interlocked. By opening linkage arm 5, the pawl linkage arm 6 can be rotated, thereby changing the closed state of the door lock and achieving the purpose of unlocking. At the same time, rotating component 1, on the other hand, drives locking rocker arm 7 to rotate clockwise around its own locking rocker arm shaft 7a through the meshing of second worm wheel 102 and third worm wheel 701. This causes the other end of locking rocker arm 7 to be pushed upward, and the locking status of the door lock can be visually displayed by releasing the locking button 8 by loosening the pull cable.

[0019] Secondly, when the door lock is locked, the locking button 8 can be pressed to pull the cable, raising the other end of the locking rocker arm 7 so that the locking rocker arm 7 rotates clockwise. The meshing of the second worm gear part 102 and the third worm gear part 701 drives the rotating part 1 to rotate counterclockwise, thus achieving the unlocking function.

[0020] Therefore, by using the locking rocker arm and locking button to transmit the locking and unlocking actions, the locking and unlocking status of the car door can be identified more clearly and intuitively. The door can also be unlocked by manually pressing the button, which is more convenient and safer.

[0021] It should be noted that in actual use, the x, y, and z axes of the central control structure will change with the installation direction, but this will not affect the realization of the central control structure's functions.

[0022] In one embodiment, please refer to the appendix. Figure 1The movable connection between the rotating part 1 and the locking linkage arm 4 is as follows: a notch 103 is provided on the circumferential side of the rotating part 1, and a first lever 401 is provided at one end of the locking linkage arm 4 extending in the z direction. The first lever 401 is assembled in the notch 103.

[0023] In one embodiment, please refer to the appendix. Figure 2 The movable connection between the locking linkage arm 4 and the opening linkage arm 5 is specifically as follows: a second lever 402 is provided on the other end of the locking linkage arm 4 near the side of the pawl linkage arm 6, and the second lever 402 abuts against the side of the opening linkage arm 5 near the pawl linkage arm 6.

[0024] This application requires real-time feedback of the door lock's locking and unlocking signals. Please refer to the appendix. Figure 1 and attached Figure 2 This application also includes a micro-motion signal switch 9, which is disposed on one circumferential side of the rotating member 1. When the rotating member 1 rotates to one side, the rotating member 1 contacts the micro-motion signal switch 9; when the rotating member 1 rotates to the other side, the rotating member 1 separates from the micro-motion signal switch 9. The micro-motion signal switch 9 feeds back a central control signal through a connection to the control system, indicating the unlocked or locked status of the door lock.

[0025] In one specific embodiment, as shown in the appendix Figure 4 As shown, the circumferential side of the rotating component 1 is provided with a connected arc surface 1b and a plane 1c. The axis of the arc surface 1b is located on the rotation axis 1a of the rotating component 1, and the radius of the arc surface 1b is greater than the perpendicular distance between the rotation axis 1a and the plane 1c. When the rotating component 1 rotates to one side, the micro-motion signal switch 9 contacts the arc surface 1b; when the rotating component 1 rotates to the other side, the micro-motion signal switch 9 separates from the plane 1c. It is easy to understand that as soon as the micro-motion signal switch 9 contacts the arc surface 1b, a central control signal indicating unlocking is fed back to the control system; as soon as the micro-motion signal switch 9 leaves the arc surface 1b, a central control signal indicating locking is fed back to the control system.

[0026] To prevent the rotating part 1 from rotating beyond its travel range and to reduce motion interference or jamming of the various linked components, please refer to the appendix. Figure 2This application also includes a limiting block 10, fixed inside the outer casing. A limiting groove 104 is provided on the radial side of the rotating member 1, and the limiting block 10 is located within the limiting groove 104. Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel door lock central control structure, disposed within the outer casing of the door lock, characterized in that, include: The rotating component (1) has its axis arranged along the y direction, and a first worm gear part (101) and a second worm gear part (102) are respectively provided on the circumferential side surface of the rotating component (1). The motor (2) and the worm (3) are connected to the output end of the motor (2) and mesh with the first worm wheel (101); The locking linkage arm (4) and the opening linkage arm (5) are arranged along the z-direction, respectively. One end of the locking linkage arm (4) is movably connected to the rotating part (1), and the other end of the locking linkage arm (4) is movably connected to the opening linkage arm (5). The pawl linkage arm (6) has its axis arranged along the z direction, and one end of it is hooked to the end of the opening linkage arm (5) near the locking linkage arm (4); The locking rocker arm (7) has its axis arranged along the y direction. One end of the rocker arm is provided with a third worm gear (701) that meshes with the first worm gear (101), and the other end of the rocker arm is connected to a locking button (8) via a pull wire.

2. The novel door lock central control structure according to claim 1, characterized in that: The rotating part (1) is also provided with a notch (103) on its circumferential side surface. One end of the locking linkage arm (4) extends in the z direction and is provided with a first lever (401). The first lever (401) is assembled in the notch (103).

3. The novel door lock central control structure according to claim 1, characterized in that: A second lever (402) is provided at the other end of the locking linkage arm (4) near the side of the pawl linkage arm (6), and the second lever (402) abuts against the side of the opening linkage arm (5) near the pawl linkage arm (6).

4. The novel door lock central control structure according to claim 1, characterized in that, Also includes: A micro-motion signal switch (9) is disposed on one circumferential side of the rotating member (1). When the rotating member (1) rotates to one side, the rotating member (1) contacts the micro-motion signal switch (9). When the rotating member (1) rotates to the other side, the rotating member (1) separates from the micro-motion signal switch (9).

5. The novel door lock central control structure according to claim 4, characterized in that: The circumferential side of the rotating component (1) is provided with a connected arc surface (1b) and a plane (1c). The axis of the arc surface (1b) is located on the rotation axis (1a) of the rotating component (1), and the radius of the arc surface (1b) is greater than the vertical distance between the rotation axis (1a) and the plane (1c). When the rotating member (1) rotates to one side, the micro-motion signal switch (9) contacts the arc surface (1b); when the rotating member (1) rotates to the other side, the micro-motion signal switch (9) separates from the plane (1c).

6. The novel door lock central control structure according to claim 1, characterized in that, Also includes: The limiting block (10) is fixed inside the outer shell, and the radial side of the rotating part (1) is provided with a limiting groove (104), and the limiting block (10) is located in the limiting groove (104).

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