Double-pull unlocking automobile door lock structure

Abstract

The utility model relates to a double-pull unlocking automobile door lock structure. The double-pull unlocking automobile door lock structure comprises an electric opening release rod, an inner opening coupling rod, a safety rod 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] This utility model relates to the field of automotive door locks, and in particular to a double-pull unlocking automotive door lock structure. Background Technology

[0002] With the development of the automotive market, the requirements for automation and intelligence of automotive opening and closing systems are gradually increasing. The automation, lightweighting, and modularization of side doors are also gradually improving. Electric opening and closing of car doors has become the standard configuration of side door locks. Some customers, in order to enhance product diversity, have canceled the electric opening method inside the car and opted for a mechanical inner handle double-pull unlocking method.

[0003] However, most mechanical internal handles with double-pull unlocking on the market are separate structures. If you need to install a mechanical internal handle with double-pull unlocking, you need to remove the original electric door lock structure and lose the electric unlocking function.

[0004] Therefore, it is necessary to provide a double-pull unlocking car door lock structure that can achieve double-pull unlocking without changing the overall layout of the lock. Utility Model Content

[0005] The purpose of this utility model is to provide a double-pull unlocking car door lock structure that achieves double-pull unlocking without changing the overall layout of the lock.

[0006] To address the problems existing in the prior art, this utility model provides a double-pull unlocking car door lock structure, comprising:

[0007] An electrically operated release lever is mounted on the door lock housing by a rivet. The electrically operated release lever has a first circular shaft, and the rotation planes of the rivet and the first circular shaft are parallel. When the electrically operated release lever rotates around the rivet, it drives the release mechanism of the lock body.

[0008] An internally opening coupling rod is rotatably mounted on the first circular shaft. The internally opening coupling rod has a first protrusion and a second protrusion perpendicular to the plane of rotation. The first protrusion and the second protrusion are respectively disposed on opposite sides of the internally opening coupling rod. The end of the internally opening coupling rod away from the first circular shaft is set as an arc surface. The internally opening coupling rod is provided with an internally opening coupling rod spring.

[0009] A bumper, which is rotatably mounted about a pivot and is always located between a rivet and a first round shaft, the bumper having a lever arm and an arc surface, the first protrusion always being in contact with the arc surface under the action of an inner coupling rod spring;

[0010] An inward-opening pull rod, wherein the inward-opening pull rod is in the shape of a hook, the first end of the inward-opening pull rod is rotatably mounted on the rivet, the second end of the inward-opening pull rod is provided with a protruding arc structure, a split arm is provided in the middle part of the inward-opening pull rod, the hook shape of the inward-opening pull rod surrounds the inward-opening coupling rod, and the inward-opening pull rod is provided with an inward-opening pull rod return spring;

[0011] 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 face of the split arm; when the inner-opening pull rod moves toward the inner-opening coupling rod for the second time, the split arm and the arc surface drive the inner-opening coupling rod and the first circular shaft to move, causing the electric release rod to rotate around the rivet.

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

[0013] After the first movement of the inward-opening tie rod, the inward-opening tie rod returns to its original position under the action of the inward-opening tie rod return spring.

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

[0015] After the inward-opening lever completes its first movement, the door lock is in the unlocked state;

[0016] After the inward-opening lever completes its second movement, the door lock is in the unlocked state.

[0017] Optionally, in the double-pull unlocking car door lock structure, the car door lock structure further includes a safety transition rod, which is linked to the safety rod.

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

[0019] Optionally, in the double-pull unlocking car door lock structure, the car door lock structure also includes a child safety mechanism, which includes:

[0020] Connecting rod, the connecting rod having a top surface,

[0021] The connecting rod moves away from the second protrusion under the action of the motor. The second protrusion is always in contact with the top surface under the action of the inner coupling rod spring, which drives the inner coupling rod to rotate so that the arc surface meshes with the end face of the split arm.

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

[0023] The motor drives the connecting rod to move away from the second protrusion via a worm gear and gears.

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

[0025] A gear spring drives the connecting rod to move toward the direction of the second protrusion, pushing the inner coupling rod to rotate so that the arc surface separates from the end face of the split arm.

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

[0027] Optionally, in the double-pull unlocking car door lock structure, the safety bar has a protrusion, and a swing arm resets the safety bar through the protrusion.

[0028] The double-pull unlocking car door lock structure provided by this utility model achieves double-pull unlocking without changing the overall layout of the lock, enabling both electric and manual double-pull unlocking; and an electric child safety function is implemented through a motor and transmission mechanism. Attached Figure Description

[0029] Figure 1 A front and back view diagram of the front door lock during the first movement of the inward-opening lever, provided for an embodiment of this utility model;

[0030] Figure 2 A front and back view diagram of the door lock during the first movement of the inward-opening lever, provided for an embodiment of this utility model;

[0031] Figure 3 A front and back view of the door lock after the first movement of the inward-opening lever, provided for an embodiment of this utility model;

[0032] Figure 4 Front and back views of a door lock being unlocked, as provided in this embodiment of the utility model;

[0033] Figure 5 A front and back view diagram of the door lock during the second movement of the inward-opening lever, provided for an embodiment of this utility model;

[0034] Figure 6 Front and back views of the door lock unlocking provided in this embodiment of the utility model;

[0035] Figure 7 A diagram showing the door lock state before the connecting rod is unlocked, provided in an embodiment of this utility model.

[0036] Figure 8 This is a diagram showing the state of the door lock after the connecting rod has been deactivated, as provided in an embodiment of this utility model.

[0037] Figure 9 The operation timing logic flowchart provided for the embodiments of this utility model.

[0038] Among them, 15-safety signal switch; 41-safety transition rod; 52-electric 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 protruding post; 54c-second protruding post; 55-inner opening coupling rod spring; 27-safety rod; 27a-arc surface; 27b-toggle arm; 28-eccentric component; 25-swing arm; 150-motor; 151-gear spring; 152-worm gear; 153-gear; 153a-post; 154-connecting rod; 154a-top surface; 16-child safety signal switch. Detailed Implementation

[0039] 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.

[0040] 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.

[0041] Most mechanical internal handles with double-pull unlocking on the market have a separate structure. If you need to install a mechanical internal handle with double-pull unlocking, you need to remove the original electric door lock structure and lose the electric unlocking function.

[0042] To address the problems existing in the prior art, this utility model provides a double-pull unlocking car door lock structure, comprising:

[0043] An electrically operated release lever 52 is mounted on the door lock housing by a rivet 59. The electrically operated release lever 52 has a first circular shaft 52a. The rotation planes of the rivet 59 and the first circular shaft 52a are parallel. When the electrically operated release lever 52 rotates around the rivet 59, it drives the release mechanism of the lock body.

[0044] An inner-opening coupling rod 54 is rotatably mounted on the first circular shaft 52a. The inner-opening coupling rod 54 has a first protrusion 54b and a second protrusion 54c perpendicular to the plane of rotation. The first protrusion 54b and the second protrusion 54c are respectively disposed on opposite sides of the inner-opening coupling rod 54. The end of the inner-opening coupling rod 54 away from the first circular shaft 52a is set as an arc surface 54a. The inner-opening coupling rod 54 is provided with an inner-opening coupling rod spring 55.

[0045] The safety bar 27 is rotatably mounted about a pivot and is always located between the rivet 59 and the first round shaft 52a. The safety bar 27 has a lever arm 27b and an arc surface 27a. The first protrusion 54b is always in contact with the arc surface 27a under the action of the inner coupling rod spring 55.

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

[0047] like Figure 1-4 As shown, the specific working principle of the safety release is as follows: When the inner opening pull rod 57 moves towards the inner opening coupling rod 54 for the first time (i.e., the inner opening pull rod 57 is subjected to...), Figure 1 (After the force in the direction is applied, the movement begins). When the inner opening pull rod 57 moves to a certain distance, the protruding arc-shaped structure 57b contacts the lever arm 27b. At this time, the inner opening pull rod 57 continues to move, causing the safety rod 27 to move clockwise. The first protrusion 54b, under the action of the inner opening coupling rod spring 55, always contacts the arc surface 27a, thereby causing the inner opening coupling rod 54 to rotate clockwise as well. When the protruding arc-shaped structure 57b of the inner opening pull rod 57 moves to the limit position of the safety rod 27, the safety rod 27 and the inner opening coupling rod 54 are in the unlocked position. After the first movement of the inner opening pull rod 57 is completed, the inner opening pull rod 57 is reset under the action of the inner opening pull rod reset spring 56. At this time, refer to Figure 4 The arc surface 54a of the inner coupling rod 54 engages with the end face of the split arm 57a, and the door lock is unlocked.

[0048] like Figure 4-6 As shown in Figure 9, the specific working principle of unlocking is as follows: When the inner opening pull rod 57 moves towards the inner opening coupling rod 54 for the second time (i.e., the inner opening pull rod 57 is subjected to...), Figure 4 (After the force in the direction starts to move), the inner opening coupling rod 54 and the first circular shaft 52a are driven to move through the split arm 57a and the arc surface 54a, causing 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 car door lock structure further includes a safety transition rod 41, which is linked to the safety rod 27. A safety signal switch 15 is provided on the safety transition rod 41, which promptly provides feedback on the unlocked / disarmed status.

[0050] refer to Figure 7-9 The car door lock structure also includes a child safety mechanism, which includes:

[0051] Connecting rod 154, the connecting rod 154 having a top surface 154a,

[0052] The motor 150 rotates, driving the worm gear 152 to rotate. The worm gear 152 drives the gear 153 to move counterclockwise. The post 153a on the gear 153 connects to the rectangular slot of the connecting rod 154, causing the connecting rod 154 to move away from the second protrusion 54c. Under the action of the inner coupling rod spring 55, the second protrusion 54c is always in contact with the top surface 154a, causing the inner coupling rod 54 to rotate clockwise around the first circular shaft 52a, so that the arc surface 54a meshes with the end face of the split arm 57a, thus releasing the safety. Of course, the motor 150 can also drive the gear 153 to move clockwise, causing the connecting rod 154 to move closer to the second protrusion 54c, pushing the inner coupling rod 54 to rotate, so that the arc surface 54a separates from the end face of the split arm 57a, thus engaging the safety.

[0053] Preferably, the car door lock structure also includes:

[0054] A gear spring 151 automatically drives the connecting rod 154 to move towards the second protrusion 54c after the motor 150 is energized to release the safety. This pushes the inner coupling rod 54 to rotate, causing the arc surface 54a to separate from the end face of the split arm 57a, thus engaging the safety. This prevents the operator from forgetting to engage the safety, thereby automatically engaging the child safety.

[0055] Preferably, the connecting rod 154 is equipped with a child safety signal switch 16. One implementation of the child safety signal switch 16 is under constant pressure and is located on the electrical unit. When the child safety switch is engaged, the connecting rod 154 is away from the child safety signal switch 16, and the switch is in the open state. When the child safety switch is disengaged, the connecting rod 154 presses down on the child safety signal switch 16, and the switch is in the closed state. Another implementation of the child safety signal switch 16 is not under constant pressure and is located on the electrical unit. When the child safety switch is engaged, the connecting rod 154 is away from the child safety signal switch 16, and the switch is in the closed state. When the child safety switch is disengaged, the connecting rod 154 presses down on the child safety signal switch 16, and the switch is in the open state. Both engaging and disengaging the child safety switch trigger the child safety signal switch 16 and send feedback to the vehicle body, ensuring the reliability of the system.

[0056] Typically, the bumper 27 has a protrusion, and a swing arm 25 resets the bumper 27 via the protrusion. The swing arm 25 is oscillating via a separate motor and gears, thereby controlling the rotation of the bumper 27. See patent application number "202411125839.8" for details. Preferably, the bumper 27 has an eccentric member 28 to further stabilize its position.

[0057] In summary, the double-pull unlocking car door lock structure provided by this utility model achieves double-pull unlocking without changing the overall layout of the lock, enabling both electric and manual double-pull unlocking; and an electric child safety function is implemented through the motor and transmission mechanism.

[0058] 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 double-pull unlocking car door lock structure, characterized in that, include: An electrically operated release lever is mounted on the door lock housing by a rivet. The electrically operated release lever has a first circular shaft, and the rotation planes of the rivet and the first circular shaft are parallel. When the electrically operated release lever rotates around the rivet, it drives the release mechanism of the lock body. An internally opening coupling rod is rotatably mounted on the first circular shaft. The internally opening coupling rod has a first protrusion and a second protrusion perpendicular to the plane of rotation. The first protrusion and the second protrusion are respectively disposed on opposite sides of the internally opening coupling rod. The end of the internally opening coupling rod away from the first circular shaft is set as an arc surface. The internally opening coupling rod is provided with an internally opening coupling rod spring. A bumper, which is rotatably mounted about a pivot and is always located between a rivet and a first round shaft, the bumper having a lever arm and an arc surface, the first protrusion always being in contact with the arc surface under the action of an inner coupling rod spring; An inward-opening pull rod, wherein the inward-opening pull rod is in the shape of a hook, the first end of the inward-opening pull rod is rotatably mounted on the rivet, the second end of the inward-opening pull rod is provided with a protruding arc structure, a split arm is provided in the middle part of the inward-opening pull rod, the hook shape of the inward-opening pull rod surrounds the inward-opening coupling rod, and the inward-opening pull rod is provided with an inward-opening pull rod return 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 face of the split arm; when the inner-opening pull rod moves toward the inner-opening coupling rod for the second time, the split arm and the arc surface drive the inner-opening coupling rod and the first circular shaft to move, causing the electric release rod to rotate around the rivet.

2. The double-pull unlocking car door lock structure as described in claim 1, characterized in that, After the first movement of the inward-opening tie rod, the inward-opening tie rod returns to its original position under the action of the inward-opening tie rod return spring.

3. The double-pull unlocking car door lock structure as described in claim 2, characterized in that, After the inward-opening lever completes its first movement, the door lock is in the unlocked state; After the inward-opening lever completes its second movement, the door lock is in the unlocked state.

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

5. The double-pull unlocking car door lock structure as described in claim 4, characterized in that, A safety signal switch is installed on the safety transition rod.

6. The double-pull unlocking car door lock structure as described in claim 1, characterized in that, The car door lock structure also includes a child safety mechanism, which includes: Connecting rod, the connecting rod having a top surface, The connecting rod moves away from the second protrusion under the action of the motor. The second protrusion is always in contact with the top surface under the action of the inner coupling rod spring, which drives the inner coupling rod to rotate so that the arc surface meshes with the end face of the split arm.

7. The double-pull unlocking car door lock structure as described in claim 6, characterized in that, The motor drives the connecting rod to move away from the second protrusion via a worm gear and gears.

8. The double-pull unlocking car door lock structure as described in claim 6, characterized in that, The car door lock structure also includes: A gear spring drives the connecting rod to move toward the direction of the second protrusion, pushing the inner coupling rod to rotate so that the arc surface separates from the end face of the split arm.

9. The double-pull unlocking car door lock structure as described in claim 6, characterized in that, The connecting rod is equipped with a child safety signal switch.

10. The double-pull unlocking car door lock structure as described in claim 1, characterized in that, The bumper has a protrusion, and a swing arm uses the protrusion to reset the bumper.

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