Double-pull unlocking automobile door lock structure

Abstract

The invention relates to a double-pull unlocking automobile door lock structure which comprises an electric opening release rod, an inner opening coupling rod, a bumper and an inner opening pull rod. When the inward-opening pull rod moves towards the inward-opening coupling rod for the first time, the protruding arc-shaped structure on the inward-opening pull rod makes contact with the shifting arm of the safety rod, the safety rod and the inward-opening coupling rod are promoted to rotate, and therefore the arc face of the inward-opening coupling rod is meshed with the end face of the branch arm of the inward-opening pull rod. When the inward opening pull rod moves towards the inward opening coupling rod for the second time, the inward opening coupling rod and the first circular shaft on the electric opening release rod are driven to move through the branch arm and the arc surface, the electric opening release rod is promoted to rotate around the rivet, and therefore a release mechanism of the lock body is driven. On the basis that the overall layout of the door lock is not changed, double-pull unlocking is achieved.

Description

Technical Field

[0001] The present invention relates to the field of automotive door locks, and particularly to an automotive door lock structure with double-pull unlocking. Background Art

[0002] With the development of the automotive market, the requirements for the automation and intelligence of the automotive opening and closing system have been gradually increasing. The automation, lightweight, and functional modularization of the side doors have also been gradually improved. The electrification of the door opening and closing has become the standard configuration of the side door lock. In order to enhance the diversification of products, some customers have cancelled the electric opening method inside the vehicle, and the inside vehicle opening method is double-pull unlocking with a mechanical inner handle.

[0003] However, most of the mechanical inner handle double-pull unlocking structures on the market are separate structures. If a mechanical inner handle double-pull unlocking structure needs to be installed, the original electrified door lock structure needs to be removed, resulting in the loss of the electric unlocking and locking functions.

[0004] Therefore, it is necessary to provide an automotive door lock structure with double-pull unlocking to achieve double-pull unlocking without changing the overall layout of the lock. Summary of the Invention

[0005] The purpose of the present invention is to provide an automotive door lock structure with double-pull unlocking to achieve double-pull unlocking without changing the overall layout of the lock.

[0006] To solve the problems existing in the prior art, the present invention provides an automotive door lock structure with double-pull unlocking, including:

[0007] An electric opening release rod, which is installed on the door lock housing through a rivet. The electric opening release rod has a first round shaft, and the rotation plane of the rivet and the first round shaft is parallel. When the electric opening release rod rotates around the rivet, it drives the release mechanism of the lock body;

[0008] An inner opening coupling rod, which is rotatably installed on the first round shaft. The inner opening coupling rod has a first convex column and a second convex column perpendicular to the rotation plane. The first convex column and the second convex column are respectively arranged on opposite sides of the inner opening coupling rod. The end of the inner opening coupling rod far from the first round shaft is set as an arc surface; an inner opening coupling rod spring is provided on the inner opening coupling rod;

[0009] A safety lever, which is rotatably installed around a rotating shaft and is always located between the rivet and the first round shaft. The safety lever has a dial arm and an arc surface, and the first convex column is always in contact with the arc surface under the action of the inner opening coupling rod spring;

[0010] An inboard pull rod, the inboard pull rod is in a hook shape, the first end of the inboard pull rod is rotatably installed on the rivet, the second end of the inboard pull rod is provided with a protruding arc structure, a branch arm is arranged in the middle part of the inboard pull rod, the hook shape of the inboard pull rod surrounds the inboard coupling rod, and the inboard pull rod is provided with an inboard pull rod return spring;

[0011] When the inboard pull rod moves towards the inboard coupling rod for the first time, the protruding arc structure contacts the dial arm, prompting the safety lever and the inboard coupling rod to rotate, so that the arc surface meshes with the end surface of the branch arm; when the inboard pull rod moves towards the inboard coupling rod for the second time, the inboard coupling rod and the first round shaft are driven to move through the branch arm and the arc surface, prompting the electric release lever to rotate around the rivet.

[0012] Optionally, in the automotive door lock structure with double-pull unlocking,

[0013] After the first movement of the inboard pull rod ends, the inboard pull rod resets under the action of the inboard pull rod return spring.

[0014] Optionally, in the automotive door lock structure with double-pull unlocking,

[0015] After the first movement of the inboard pull rod ends, the door lock is in the deactivated state;

[0016] After the second movement of the inboard pull rod ends, the door lock is in the unlocked state.

[0017] Optionally, in the automotive door lock structure with double-pull unlocking, the automotive door lock structure further includes a safety transition rod, and the safety transition rod is linked with the safety lever.

[0018] Optionally, in the automotive door lock structure with double-pull unlocking, a safety signal switch is arranged on the safety transition rod.

[0019] Optionally, in the automotive door lock structure with double-pull unlocking, the automotive door lock structure further includes a child safety structure, and the child safety structure includes:

[0020] A connecting rod, the connecting rod has a top surface,

[0021] The connecting rod moves towards the direction away from the second convex post under the action of the motor, and the second convex post is always in contact with the top surface under the action of the inboard coupling rod spring, driving the inboard coupling rod to rotate, so that the arc surface meshes with the end surface of the branch arm.

[0022] Optionally, in the automotive door lock structure with double-pull unlocking,

[0023] The motor drives the connecting rod to move towards the direction away from the second convex post through a worm and a gear.

[0024] Optionally, in the double-pull unlocking automotive door lock structure, the automotive door lock structure further includes:

[0025] A gear spring that drives the connecting rod to move towards the direction close to the second convex post, pushing the inner-opening coupling rod to rotate, so that the arc surface is separated from the end surface of the split arm.

[0026] Optionally, in the double-pull unlocking automotive door lock structure, a child safety signal switch is provided on the connecting rod.

[0027] Optionally, in the double-pull unlocking automotive door lock structure, the safety rod is provided with a protrusion, and a swing arm resets the safety rod through the protrusion.

[0028] In the double-pull unlocking automotive door lock structure provided by the present invention, on the basis of not changing the overall layout of the lock, double-pull unlocking is realized, which can not only have the electric unlocking function but also the manual double-pull unlocking function; and the electric child safety function is realized through the motor and the transmission mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Front and back state diagrams of the door lock before the first movement of the inner-opening pull rod provided by the embodiment of the present invention;

[0030] Figure 2 Front and back state diagrams of the door lock during the first movement of the inner-opening pull rod provided by the embodiment of the present invention;

[0031] Figure 3 Front and back state diagrams of the door lock at the end of the first movement of the inner-opening pull rod provided by the embodiment of the present invention;

[0032] Figure 4 Front and back state diagrams of the door lock when the insurance is released provided by the embodiment of the present invention;

[0033] Figure 5 Front and back state diagrams of the door lock during the second movement of the inner-opening pull rod provided by the embodiment of the present invention;

[0034] Figure 6 Front and back state diagrams of the door lock when it is unlocked provided by the embodiment of the present invention;

[0035] Figure 7 Door lock state diagram before the connecting rod releases the insurance provided by the embodiment of the present invention;

[0036] Figure 8 Door lock state diagram after the connecting rod releases the insurance provided by the embodiment of the present invention;

[0037] Figure 9 Operation timing logic flowchart provided by the embodiment of the present invention.

[0038] Among them, 15 - insurance signal switch; 41 - insurance transition rod; 52 - electric opening release rod; 52a - first round shaft; 59 - rivet; 56 - inner opening pull rod return spring; 57 - inner opening pull rod; 57a - split arm; 57b - protruding arc structure; 54 - inner opening coupling rod; 54a - arc surface; 54b - first convex column; 54c - second convex column; 55 - inner opening coupling rod spring; 27 - insurance rod; 27a - arc surface; 27b - dialing arm; 28 - eccentric member; 25 - swing arm; 150 - motor; 151 - gear spring; 152 - worm; 153 - gear; 153a - column; 154 - connecting rod; 154a - top surface; 16 - child insurance signal switch. Detailed implementation manners

[0039] The following will describe the detailed implementation manners of the present invention in more detail with reference to the schematic diagrams. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the drawings are in a very simplified form and use non - precise scales, only for the purpose of facilitating and clearly assisting in explaining the purpose of the embodiments of the present invention.

[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "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 drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0041] Most mechanical inner handles with double - pull unlocking on the market are of separate structures. If a mechanical inner handle with double - pull unlocking needs to be installed, the original electrified door lock structure needs to be removed, resulting in the loss of the electric unlocking and locking functions.

[0042] To solve the problems existing in the prior art, the present invention provides an automotive door lock structure with double - pull unlocking, including:

[0043] An electric opening release rod 52, the electric opening release rod 52 is installed on the door lock housing through a rivet 59, the electric opening release rod 52 has a first round shaft 52a, the rotation planes of the rivet 59 and the first round shaft 52a are parallel, and when the electric opening release rod 52 rotates around the rivet 59, it drives the release mechanism of the lock body;

[0044] An inwards-opening coupling rod 54 is rotatably mounted on the first round shaft 52a. The inwards-opening coupling rod 54 has a first convex post 54b and a second convex post 54c perpendicular to the rotation plane. The first convex post 54b and the second convex post 54c are respectively arranged on opposite sides of the inwards-opening coupling rod 54. The end of the inwards-opening coupling rod 54 far from the first round shaft 52a is an arc surface 54a. An inwards-opening coupling rod spring 55 is provided on the inwards-opening coupling rod 54;

[0045] A safety lever 27 is rotatably mounted around a rotating shaft and is always located between the rivet 59 and the first round shaft 52a. It has a dialing arm 27b and an arc surface 27a. The first convex post 54b is always in contact with the arc surface 27a under the action of the inwards-opening coupling rod spring 55;

[0046] An inwards-opening pull rod 57 is in a hook shape. The first end of the inwards-opening pull rod 57 is rotatably mounted on the rivet 59. The second end of the inwards-opening pull rod 57 is provided with a protruding arc-shaped structure 57b. A split arm 57a is arranged in the middle of the inwards-opening pull rod 57. The hook shape of the inwards-opening pull rod 57 surrounds the inwards-opening coupling rod 54. An inwards-opening pull rod return spring 56 is provided on the inwards-opening pull rod 57;

[0047] As Figures 1-4 shown, the specific working principle of releasing the safety is as follows: When the inwards-opening pull rod 57 moves towards the inwards-opening coupling rod 54 for the first time (i.e., when the inwards-opening pull rod 57 starts to move after receiving a force in the Figure 1 direction), when the inwards-opening pull rod 57 moves a certain distance, the protruding arc-shaped structure 57b contacts the dialing arm 27b. At this time, the inwards-opening pull rod 57 continues to move, causing the safety lever 27 to move in the clockwise direction. The first convex post 54b is always in contact with the arc surface 27a under the action of the inwards-opening coupling rod spring 55, so that the inwards-opening coupling rod 54 also rotates clockwise. When the protruding arc-shaped structure 57b of the inwards-opening pull rod 57 moves to the limit position of the safety lever 27, the safety lever 27 and the inwards-opening coupling rod 54 are in the position of releasing the safety. After the first movement of the inwards-opening pull rod 57 ends, the inwards-opening pull rod 57 returns under the action of the inwards-opening pull rod return spring 56. At this time, referring to Figure 4 , the arc surface 54a of the inwards-opening coupling rod 54 meshes with the end face of the split arm 57a, and the door lock completes releasing the safety.

[0048] As Figures 4-6 shown in FIGS. 8 and 9, the specific working principle of unlocking is as follows: When the inwards-opening pull rod 57 moves towards the inwards-opening coupling rod 54 for the second time (i.e., when the inwards-opening pull rod 57 starts to move after receiving a force in the Figure 4 direction), the inwards-opening coupling rod 54 and the first round shaft 52a are driven to move through the split arm 57a and the arc surface 54a, prompting the electric opening release rod 52 to rotate around the rivet 59. The electric opening release rod 52 drives the release mechanism of the lock body to open the lock. At this time, the door lock is in the unlocked state.

[0049] Preferably, the vehicle door lock structure further includes a safety transition lever 41, and the safety transition lever 41 is linked with the safety lever 27. A safety signal switch 15 is arranged on the safety transition lever 41, and the safety signal switch 15 timely feeds back the state of unlocking the safety.

[0050] Reference Figures 7-9 , the vehicle door lock structure further includes a child safety structure, and the child safety structure includes:

[0051] a connecting rod 154, and the connecting rod 154 has a top surface 154a.

[0052] The rotation of the motor 150 drives the rotation of the worm 152, and the worm 152 drives the gear 153 to move counterclockwise. The post 153a on the gear 153 is connected to the rectangular groove of the connecting rod 154, driving the connecting rod 154 to move away from the second convex post 54c. The second convex post 54c is always in contact with the top surface 154a under the action of the inner-opening coupling rod spring 55, driving the inner-opening coupling rod 54 to rotate clockwise around the first circular shaft 52a, so that the arc surface 54a meshes with the end surface of the split arm 57a, realizing unlocking of the safety. Of course, the motor 150 can also drive the gear 153 to move clockwise, so that the connecting rod 154 moves towards the direction close to the second convex post 54c, pushing the inner-opening coupling rod 54 to rotate, so that the arc surface 54a separates from the end surface of the split arm 57a, realizing locking of the safety.

[0053] Preferably, the vehicle door lock structure further includes:

[0054] a gear spring 151. After the motor 150 is powered on to realize unlocking of the safety, the motor 150 is powered off, and the gear spring 151 automatically drives the connecting rod 154 to move towards the direction close to the second convex post 54c, pushing the inner-opening coupling rod 54 to rotate, so that the arc surface 54a separates from the end surface of the split arm 57a, realizing locking of the safety. This avoids the operator forgetting to lock the safety, thus realizing automatic locking of the child safety.

[0055] Preferably, a child safety signal switch 16 is provided on the connecting rod 154. One implementation of the child safety signal switch 16 is at normal pressure and is provided on the electrical unit. When in the upper child safety position, the connecting rod 154 is away from the child safety signal switch 16 and the switch is in the off state; when in the child safety release position, the connecting rod 154 presses on the child safety signal switch 16 and the switch is in the on state. Another implementation of the child safety signal switch 16 is not at normal pressure and is provided on the electrical unit. When in the upper child safety position, the connecting rod 154 is away from the child safety signal switch 16 and the switch is in the on state; when in the child safety release position, the connecting rod 154 presses on the child safety signal switch 16 and the switch is in the off state. Triggering the child safety signal switch 16 during both upper and lower child safety operations and feeding back to the vehicle body ensures the reliability of the system.

[0056] Generally, the bumper 27 is provided with a protrusion, and a swing arm 25 causes the bumper 27 to reset through the protrusion. The swing arm 25 swings through another motor and gears to control the rotation of the bumper 27. For details, refer to the patent text with the patent application number "202411125839.8". Preferably, the bumper 27 has an eccentric member 28 to make the position of the bumper 27 more stable.

[0057] In summary, in the double-pull unlocking automotive door lock structure provided by the present invention, double-pull unlocking is achieved without changing the overall layout of the lock, which can not only perform the electric unlocking function but also the manual double-pull unlocking; and the electric child safety function is realized through the motor and the transmission mechanism.

[0058] The above are only the preferred embodiments of the present invention and do not impose any limitation on the present invention. Any person skilled in the art within the technical field, without departing from the technical solution of the present invention, makes any form of equivalent substitution or modification and other changes to the disclosed technical solution and technical content of the present invention, which are still within the content of the technical solution of the present invention and still fall within the protection scope of the present invention.

Claims

1. A double-pull unlocking automobile door lock structure, characterized in that: include: An electric release lever, the electric release lever is mounted on the door lock housing by rivets, the electric release lever has a first circular axis, the rotation plane of the rivet and the first circular axis are parallel, and when the electric release lever rotates around the rivet, the release mechanism of the lock body is driven; An inner-opening coupling rod, the inner-opening coupling rod is rotatably mounted on the first circular axis, the inner-opening coupling rod has a first convex column and a second convex column perpendicular to the rotation plane, the first convex column and the second convex column are respectively arranged on two opposite sides of the inner-opening coupling rod, and the end of the inner-opening coupling rod away from the first circular axis is set as an arc surface; the inner-opening coupling rod is provided with an inner-opening coupling rod spring; A safety rod, the safety rod is rotatably installed around a rotating shaft and is always located between the rivet and the first circular shaft, the safety rod has a lever arm and an arc surface, and the first protrusion is always in contact with the arc surface under the action of the inner opening coupling rod spring; An inner opening tie rod, the inner opening tie rod is in the shape of a hook, the first end of the inner opening tie rod is rotatably mounted on the rivet, the second end of the inner opening tie rod is provided with a protruding arc structure, a branch arm is provided in the middle part of the inner opening tie rod, the hook shape of the inner opening tie rod surrounds the inner opening coupling rod, and the inner opening tie rod is provided with an inner opening tie rod reset spring; When the inner-opening pull rod moves toward the inner-opening coupling rod for the first time, the protruding arc structure contacts the lever arm, causing the safety rod and the inner-opening coupling rod to rotate so that the arc surface engages with the end surface of the branch arm; when the inner-opening pull rod moves toward the inner-opening coupling rod for the second time, the branch arm and the arc surface drive the inner-opening coupling rod and the first circular shaft to move, causing the electric opening release rod to rotate around the rivet.

2. The double-pull unlocking automobile door lock structure according to claim 1, characterized in that: After the first movement of the inner opening pull rod is completed, the inner opening pull rod is reset under the action of the inner opening pull rod reset spring.

3. The double-pull unlocking automobile door lock structure according to claim 2, characterized in that: After the first movement of the inner opening lever is completed, the door lock is in the unlocked state; After the second movement of the inner opening pull rod is completed, the door lock is in the unlocked state.

4. The double-pull unlocking automobile door lock structure according to claim 1, characterized in that: The automobile door lock structure also includes a safety transition rod, which is linked to the safety rod.

5. The double-pull unlocking automobile door lock structure according to claim 4, characterized in that: A safety signal switch is arranged on the safety transition rod.

6. The double-pull unlocking automobile door lock structure according to claim 1, characterized in that: The car door lock structure also includes a child safety structure, which includes: A connecting rod, the connecting rod having a top surface, The connecting rod moves in a direction away from the second boss under the action of the motor, and the second boss is always in contact with the top surface under the action of the inner-open coupling rod spring, driving the inner-open coupling rod to rotate so that the arc surface engages with the end surface of the branch arm.

7. The double-pull unlocking automobile door lock structure according to claim 6, characterized in that: The motor drives the connecting rod to move in a direction away from the second protruding column through the worm and the gear.

8. The double-pull unlocking automobile door lock structure according to claim 6, characterized in that: The car door lock structure also includes: A gear spring drives the connecting rod to move toward the direction close to the second protrusion, and pushes the inner opening coupling rod to rotate, so that the arc surface is separated from the end surface of the branch arm.

9. The double-pull unlocking automobile door lock structure according to claim 6, characterized in that: A child safety signal switch is arranged on the connecting rod.

10. The double-pull unlocking automobile door lock structure according to claim 1, characterized in that: The safety lever is provided with a protrusion, and a swing arm resets the safety lever through the protrusion.

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