A central control structure of a motor vehicle door lock

Abstract

The utility model relates to a kind of central control structure of motor vehicle door lock, and its working principle is as follows, pull rod is located in position one, transition rod and convex part constitute cooperation, external opening lever moves from position three to position four, promote opening lever common movement, the latter promotes ratchet movement, release the restriction to lock tongue, to realize the unlocking action of door lock, position one is usually called as insurance release position;When pull rod is located in position two, transition rod and convex do not constitute cooperation, external opening lever moves from position three to position four, cannot promote opening lever common movement the latter cannot promote ratchet movement, the restriction of ratchet to lock tongue remains, cannot be unlocked, position two is usually called as upper insurance position;When insurance release state, external opening lever groove rotates and drives second limit post and convex portion rotation, realize unlocking.The utility model can simultaneously retain outer opening mechanical release and central control insurance function, not only can improve security, but also keep and conventional central control door lock control logic downward compatible.

Description

Technical Field

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

[0002] With the development and increasing demands of the automotive market, the requirements for automation, electrification, and independence in automotive opening and closing systems are gradually increasing. This includes improvements in the automation, electrification, and modularization of side door locks. Therefore, it is necessary to provide a central locking structure for vehicle door locks that can simultaneously retain both external mechanical release and central locking safety functions. For doors equipped with electric opening capabilities, this not only enhances security but also maintains backward compatibility with conventional central locking control logic. Utility Model Content

[0003] The purpose of this utility model is to provide a central control structure for motor vehicle door locks that can simultaneously retain the external mechanical release and central control safety functions. For some car doors equipped with electric opening functions, it can not only improve safety, but also maintain backward compatibility with conventional central control door lock control logic.

[0004] To address the problems existing in the prior art, this utility model provides a central control structure for a motor vehicle door lock, comprising:

[0005] A pull rod having a first end and a second end facing opposite directions; the first end is provided with a groove, and the pull rod slides along its length direction through a protrusion located in the groove; the second end is provided with a pull rod groove.

[0006] The transition rod is provided with a first limiting post and a second limiting post. The first limiting post is engaged in the pull rod groove. The pull rod groove drives the first limiting post to move, thereby driving the second limiting post to move to achieve locking or unlocking.

[0007] An external opening rod is provided, one end of which is disposed on the housing and rotates along the second axis. The other end of the external opening rod is provided with an external opening rod hole for connection with an external pull wire. An external opening rod groove is also provided on the side of the external opening rod. The second limiting post moves as the external opening rod groove rotates.

[0008] An opening rod is mounted on the housing and rotates along a second axis. The opening rod has a protrusion near the second limiting post. When the second limiting post is flush with the protrusion, it is in the unlocked state. When the second limiting post is away from the protrusion, it is in the locked state. In the unlocked state, the external opening rod groove rotates, causing the second limiting post and the protrusion to rotate, thereby unlocking the device.

[0009] Optionally, the central control structure of the vehicle door lock also includes a transition rod torsion spring, one end of which is limited to the first limiting post, giving the first limiting post a force in the direction of unlocking.

[0010] Optionally, in the central control structure of the motor vehicle door lock, when the lock is released, the opening lever, the external opening lever, and the transition lever rotate coaxially and are located on the second axis.

[0011] Optionally, the central control structure of the motor vehicle door lock also includes a worm torsion spring, one end of which is fixed to the worm wheel and the other end is fixed to the housing.

[0012] Optionally, in the central control structure of the vehicle door lock, the external opening lever hole is connected to an external device via the external pull cable.

[0013] Optionally, the central control structure of the vehicle door lock also includes:

[0014] The motor is mounted on the housing;

[0015] A worm gear, which is fixedly connected to the rotor of the motor;

[0016] A worm gear is mounted on the housing and rotates along a first axis. The turbine is driven by the worm. The worm gear is provided with the protrusion.

[0017] In the central control structure of the motor vehicle door lock provided by this utility model, this mechanism is equipped with an independent motor and transmission mechanism, and is combined with the vehicle control logic. It can simultaneously retain the external mechanical release and central control safety functions, which not only improves safety, but also maintains backward compatibility with conventional central control door lock control logic. Attached Figure Description

[0018] Figure 1 This is a schematic diagram illustrating the unlocking of the overall structure of the motor vehicle door lock mechanism provided in an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram illustrating the overall structure of the motor vehicle door lock mechanism provided in an embodiment of the present utility model.

[0020] Figure 3-6 A diagram illustrating the working state of a motor vehicle door lock mechanism provided in an embodiment of this utility model;

[0021] Figure 7 This is a partial schematic diagram of a motor vehicle door lock mechanism provided in an embodiment of the present utility model.

[0022] Among them, 11-locking tongue; 12-pawl; 18-opening rod; 18a-protrusion; 61-external opening rod; 61a-external opening rod hole; 61b-external opening rod groove; 63-transition rod; 63a-first limiting post; 63b-second limiting post; 64-transition rod torsion spring; 65-pull rod; 65a-pull rod mounting post; 65b-pull rod slide groove; 81-motor; 82-worm gear; 83-worm wheel; 83a-protrusion post; 85-worm torsion spring; 165-external pull cable. Detailed Implementation

[0023] The specific embodiments of this utility model will now be described in more detail with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0024] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] With the development and increasing demands of the automotive market, the requirements for automation, electrification, and independence in automotive opening and closing systems are gradually increasing. This includes improvements in the automation, electrification, and modularization of side door locks. Therefore, it is necessary to provide a central locking structure for vehicle door locks that can simultaneously retain both external mechanical release and central locking safety functions. For doors equipped with electric opening capabilities, this not only enhances security but also maintains backward compatibility with conventional central locking control logic.

[0026] To address the problems existing in the prior art, this utility model provides a central control structure for a motor vehicle door lock, with reference to... Figure 1-7 The following structures can be mounted on different housings, including:

[0027] Motor 81, wherein motor 81 is mounted on the housing;

[0028] Worm 82, which is fixedly connected to the rotor of motor 81;

[0029] The worm wheel 83 is mounted on the housing and rotates along the first axis. The worm is driven by the worm 82. The worm wheel 83 is provided with a protrusion 83a.

[0030] A pull rod 65 has a first end and a second end facing opposite directions. The first end is provided with a groove, and the protrusion 83a is located in the groove to drive the pull rod 65 to slide along its length. The second end is provided with a pull rod groove 65b.

[0031] The transition rod 63 is provided with a first limiting post 63a and a second limiting post 63b. The first limiting post 63a is engaged in the pull rod groove 65b. The pull rod groove 65b drives the first limiting post 63a to move, thereby driving the second limiting post 63b to move to achieve locking or unlocking.

[0032] Preferably, the first limiting post 63a and the second limiting post 63b are not parallel to the transition rod 63.

[0033] An external opening rod 61 is provided, one end of which is disposed on the housing and rotates along the second axis. The other end of the external opening rod 61 is provided with an external opening rod hole 61a connected to an external pull wire 165. An external opening rod groove 61b is also provided on the side of the external opening rod 61. The second limiting post 63b moves with the rotation of the external opening rod groove 61b.

[0034] Preferably, the direction of the external opening rod groove 61b is nearly parallel to the sliding direction of the pull rod 65, and the external pull line 165 includes a Bowden line, wherein the first axis and the second axis are perpendicular to each other.

[0035] An opening lever 18 is mounted on the housing and rotates along a second axis. A protrusion 18a is provided on the opening lever 18 near the second limiting post 63b. When the second limiting post 63b is flush with the protrusion 18a, it is in the unlocked state; when the second limiting post 63b is away from the protrusion 18a, it is in the locked state. In the unlocked state, the external opening lever groove 61b rotates, causing the second limiting post 63b and the protrusion 18a to rotate, thus unlocking the mechanism (see reference). Figure 2 ).

[0036] Among them, reference Figure 3-7The sliding range of the second limiting post 63b within the external opening rod groove 61b is between position one and position two. Position one (i.e., the unlocked position) is the position where the second limiting post 63b is flush with the protrusion 18a. Position two (i.e., the locked position) is the position where the second limiting post 63b is furthest from the protrusion 18a. The rotation range of the external opening rod 61 when pulled by an external device is between position three and position four. Position three is the position when the external opening rod 61 is not pulled, and position four is the position when the external opening rod 61 is being pulled.

[0037] In one embodiment, when the lever 65 is in position one, the transition lever 63 and the protrusion 18a engage; the movement of the external opening lever 61 from position three to position four can push the opening lever 18 to move together; the latter pushes the pawl 12 to move, releasing the restriction on the bolt 11, thereby realizing the unlocking action of the door lock; when the lever 65 is in position two, the transition lever 63 and the protrusion 18a do not engage. The movement of the external opening lever 61 from position three to position four cannot push the opening lever 18 to move together; the latter cannot push the pawl 12 to move, the restriction of the pawl 12 on the bolt 11 remains, and the lock cannot be unlocked.

[0038] Optionally, the central control structure of the motor vehicle door lock also includes a transition rod torsion spring 64, one end of which is limited to the first limiting post 63a, giving the first limiting post 63a a force in the direction of unlocking.

[0039] Typically, the second end of the pull rod 65 is also provided with a pull rod mounting post 65a, the transition rod torsion spring 64 is sleeved on the pull rod mounting post 65a, and the other end of the transition rod torsion spring 64 is fixed on the pull rod 65.

[0040] Preferably, a transition rod torsion spring 64 is provided, elastically connecting the pull rod 65 and the transition rod 63 to maintain their sliding coupling in the sliding direction. When the pull rod 65 is in position two (upper safety), the external pull cable 165 pulls and holds the external opening rod 61, entering... Figure 6 In the current state; if motor 81 drives pull rod 65 to position one (safety released), because transition rod 63 is blocked by protrusion 18a, transition rod 63 cannot continue to move. Transition rod torsion spring 64 temporarily decouples pull rod 65 and transition rod 63, entering the state. Figure 7 This state is commonly referred to as the tension lock working state. Until the external pull cable 165 releases and the external opening lever 61 returns to position three, the transition lever torsion spring 64 pushes the transition lever 63 back into the sliding coupling state. Returning to... Figure 3 The state.

[0041] Optionally, in the central control structure of the motor vehicle door lock, when the lock is released, the opening lever 18, the external opening lever 61, and the transition lever 63 rotate coaxially and are located on the second axis.

[0042] Optionally, the central control structure of the motor vehicle door lock also includes a worm torsion spring 85, one end of which is fixed to the worm wheel 83 and the other end is fixed to the housing.

[0043] Specifically, by setting a suitable eccentric angle, the worm gear 83 can be stably positioned at one of the two extreme angles, thus providing a gear shift feel.

[0044] Optionally, in the central control structure of the vehicle door lock, the external opening rod hole 61a is connected to an external device via the external pull cable 165.

[0045] The external device includes an external operating handle for the vehicle.

[0046] In summary, the central control structure of the motor vehicle door lock provided by this utility model is equipped with an independent motor and transmission mechanism, and is combined with the vehicle control logic. It can simultaneously retain the external mechanical release and central control safety functions, which not only improves safety, but also maintains backward compatibility with conventional central control door lock control logic.

[0047] The above are merely preferred embodiments of this utility model and do not constitute any limitation on this utility model. Any equivalent substitutions or modifications made by those skilled in the art to the technical solutions and contents disclosed in this utility model without departing from the scope of the technical solutions of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A central control structure for a motor vehicle door lock, characterized in that, include: A pull rod having a first end and a second end facing opposite directions; the first end is provided with a groove, and the pull rod slides along its length direction through a protrusion located in the groove; the second end is provided with a pull rod groove. The transition rod is provided with a first limiting post and a second limiting post. The first limiting post is engaged in the pull rod groove. The pull rod groove drives the first limiting post to move, thereby driving the second limiting post to move to achieve locking or unlocking. An external opening rod is provided, one end of which is disposed on the housing and rotates along the second axis. The other end of the external opening rod is provided with an external opening rod hole for connection with an external pull wire. An external opening rod groove is also provided on the side of the external opening rod. The second limiting post moves as the external opening rod groove rotates. An opening rod is mounted on the housing and rotates along a second axis. The opening rod has a protrusion near the second limiting post. When the second limiting post is flush with the protrusion, it is in the unlocked state. When the second limiting post is away from the protrusion, it is in the locked state. In the unlocked state, the external opening rod groove rotates, causing the second limiting post and the protrusion to rotate, thereby unlocking the device.

2. The central control structure of the motor vehicle door lock as described in claim 1, characterized in that, It also includes a transition rod torsion spring, one end of which is confined to the first limiting post, giving the first limiting post a force toward the direction of releasing the safety device.

3. The central control structure of the motor vehicle door lock as described in claim 1, characterized in that, When the safety is released, the opening lever, the external opening lever, and the transition lever rotate coaxially and are located on the second axis.

4. The central control structure of the motor vehicle door lock as described in claim 1, characterized in that, It also includes a worm torsion spring, one end of which is fixed to the worm wheel and the other end is fixed to the housing.

5. The central control structure of the motor vehicle door lock as described in claim 1, characterized in that, The external opening rod hole is connected to an external device via the external pull wire.

6. The central control structure of the motor vehicle door lock as described in claim 4, characterized in that, Also includes: The motor is mounted on the housing; A worm gear, which is fixedly connected to the rotor of the motor; A worm gear is mounted on the housing and rotates along a first axis. The worm gear is driven by the worm and has the protrusion on it.

Images