Automobile door lock inward-opening double-pull opening mechanism

Abstract

The utility model relates to the technical field of automobile door locks, in particular to an automobile door lock inward-opening double-pull opening mechanism which comprises a shell and a lock body, an inward-opening rocker arm connected with an inner handle is arranged on the shell, and the inward-opening rocker arm is connected with a locking connecting rod through an inner locking rocker arm and used for driving the locking connecting rod to move in a reciprocating mode. The inward opening rocker arm is connected with an inward opening linkage arm; an outward opening linkage arm and an opening rocker arm are arranged on the lock body, and a sliding arm is arranged between the outward opening linkage arm and the opening rocker arm; after the locking connecting rod reciprocates, the sliding arm can return to the unlocking direction under the action of the return spring, so that the outward opening linkage arm and the opening rocker arm are in lap joint; the inward-opening linkage arm pushes the outward-opening linkage arm and the opening rocker arm to move, and the opening rocker arm drives the pawl to move, unhook and release the ratchet wheel. Unlocking can be achieved only by pulling the inner opening handle, operation is simplified, meanwhile, a door lock mechanism is simplified, cost is saved, and the door lock is the development trend of door lock bodies at home and abroad.

Description

Technical Field

[0001] This utility model relates to the field of automotive door lock technology, specifically to an inward-opening double-pull mechanism for automotive door locks. Background Technology

[0002] Ratchet-pawl door locks are a common automotive door lock structure that uses the interaction of a ratchet and a pawl to lock and unlock the door. This structure is widely used in automotive door locks due to its high reliability and security. The working principle of a ratchet-pawl door lock is based on the mechanical engagement of the ratchet and pawl. When the door is closed, the latch strikes the ratchet, causing it to rotate and engage the latch. When the door reaches the closed position, the pawl stops the ratchet, limiting its rotation and keeping the door closed. During unlocking, the release mechanism releases the ratchet by actuating the pawl, allowing the ratchet to rotate and unlock the door.

[0003] Existing car door locks are basically single-pull inward-opening mechanisms, where the locking and unlocking parts are separate. Unlocking is achieved via a pull cable connected to an inward-locking button, which affects user experience. Therefore, we propose a double-pull inward-opening mechanism for car door locks. Utility Model Content

[0004] The purpose of this utility model is to provide an internal double-pull opening mechanism for car door locks. Unlocking can be achieved simply by pulling the internal opening handle, simplifying the operation and streamlining the door lock mechanism to save costs. This is the trend in the development of door lock bodies both domestically and internationally. It solves the problem that the internal locking and opening parts of car door locks are separate, and the unlocking is achieved by connecting the internal locking button to the pull cable, which affects the user experience.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an inward-opening double-pull opening mechanism for a car door lock, comprising a housing and a lock body, wherein an inward-opening rocker arm connected to an inward handle is provided on the housing, the inward-opening rocker arm is connected to a locking linkage through an inward-locking rocker arm and is used to drive the locking linkage to reciprocate; an inward-opening linkage arm is connected to the inward-opening rocker arm.

[0006] The lock body is provided with an outward opening linkage arm and an opening rocker arm. A sliding arm is provided between the outward opening linkage arm and the opening rocker arm. The locking link is used to restrict the movement of the sliding arm. After the locking link reciprocates, it can cause the sliding arm to return to the unlocking direction under the action of the return spring, so that the outward opening linkage arm and the opening rocker arm can overlap.

[0007] The inner opening linkage arm is used to push the outer opening linkage arm and the opening rocker arm connected to the outer opening linkage arm to move. The opening rocker arm is used to drive the pawl of the lock body to move to disengage and release the ratchet.

[0008] Preferably, the inner handle is connected to the inner opening rocker arm through an inner opening cable. The inner opening cable is fixed to the housing by clamping, and the joint of the inner opening cable is hung on the inner opening rocker arm.

[0009] Preferably, the inner opening rocker arm is installed on the inner opening rocker arm shaft inside the housing, and the inner opening linkage arm is riveted to the inner opening rocker arm through an inner opening linkage shaft.

[0010] Preferably, the inner locking rocker arm is installed on the inner locking shaft of the housing. One end of the notch is clamped onto the cylinder of the locking connecting rod to form an overlap. The waist-shaped slot of the locking connecting rod is installed on the locking connecting rod mounting column of the housing, and the locking connecting rod can reciprocate along it.

[0011] Preferably, the outer opening linkage arm and the opening rocker arm are sequentially installed on the opening shaft of the lock body. One side of the sliding arm is placed inside the chute of the opening rocker arm, and the cylinder on the other side is placed inside the waist-shaped slot of the opening rocker arm and can reciprocate along the waist-shaped slot. The flanging of the opening rocker arm is placed outside the pawl connecting shaft to form an overlap.

[0012] Preferably, the ratchet wheel is installed on the ratchet wheel shaft, and the pawl is installed on the pawl shaft. One ends of the ratchet wheel shaft and the pawl shaft are both riveted to the door lock cover plate of the lock body, and the other ends are riveted to the connecting plate of the lock body.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] By adding flanging to the inner opening rocker arm and adding a limit to the inner locking rocker arm in the present utility model, the inner opening and unlocking are connected together to achieve linkage. The inner opening handle unlocks with the first pull and opens with the second pull. This enables the user to unlock by simply pulling the inner opening handle, simplifies the operation, and at the same time streamlines the door lock mechanism and saves costs. Brief Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the double-pull mechanism of the present utility model;

[0016] Figure 2 It is a schematic diagram of the movement of the locking connecting rod of the present utility model;

[0017] Figure 3 It is a schematic diagram of the movement of the sliding arm of the present utility model;

[0018] Figure 4 It is a schematic diagram of the movement of the opening rocker arm of the present utility model;

[0019] Figure 5 It is a schematic diagram of the ratchet wheel release of the present utility model;

[0020] Figure 6 It is a schematic diagram of the connection of the installation positions of the double-pull mechanism of the present utility model; [[ID=...]] [[ID=...]]

[0021] Figure 7 This is a schematic diagram showing the installation position connection of the double-pull opening mechanism of this utility model;

[0022] Figure 8 This is a schematic diagram showing the installation position connection of the double-pull opening mechanism of this utility model.

[0023] In the diagram: 1. Inward opening cable; 2. Inward opening rocker arm; 3. Inward locking rocker arm; 4. Locking linkage; 5. Inward opening linkage arm; 6. Inward opening linkage shaft; 7. Outward opening linkage arm; 8. Sliding arm; 9. Opening rocker arm; 10. Pawl; 11. Ratchet; 12. Housing; 13. Lock body; 14. Door lock cover plate; 15. Ratchet shaft; 16. Pawl shaft; 17. Connecting plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1 , 6 As shown in Figures 7 and 8, an inward-opening double-pull opening mechanism for a car door lock includes a housing 12 and a lock body 13. An inward-opening rocker arm 2 connected to an inward handle is provided on the housing 12. The inward-opening rocker arm 2 is connected to a locking link 4 via an inward-locking rocker arm 3 and is used to drive the locking link 4 to reciprocate. An inward-opening linkage arm 5 is connected to the inward-opening rocker arm 2.

[0026] The lock body 13 is provided with an outward opening linkage arm 7 and an opening rocker arm 9. A sliding arm 8 is provided between the outward opening linkage arm 7 and the opening rocker arm 9. The locking link 4 is used to restrict the movement of the sliding arm 8. After the locking link 4 reciprocates, it can cause the sliding arm 8 to return to the unlocking direction under the action of the return spring, so that the outward opening linkage arm 7 and the opening rocker arm 9 are connected.

[0027] The inner opening linkage arm 5 is used to push the outer opening linkage arm 7 and the opening rocker arm 9 connected to the outer opening linkage arm 7 to move. The opening rocker arm 9 is used to drive the pawl 10 of the lock body 13 to move to disengage and release the ratchet 11.

[0028] The inner handle and the inner opening rocker arm 2 are connected by the inner opening cable 1. The inner opening cable 1 is fixed to the housing 12 by snap-fit, and the connector of the inner opening cable 1 is hung on the inner opening rocker arm 2.

[0029] The inner-opening cable 1 is fixed to the housing 12 by a snap-fit. A zinc alloy connector is hung on the inner-opening rocker arm 2, which is mounted on the inner-opening rocker arm shaft of the housing 12. The inner-opening linkage arm 5 is riveted to the inner-opening rocker arm 2 via the inner-opening linkage shaft 6. The inner-locking rocker arm 3 is mounted on the inner-locking shaft of the housing 12. One end of the inner-locking rocker arm 3 has a notch that engages with the cylinder of the locking link 4, forming an overlap. The locking link 4 has an oblong groove mounted on the locking link mounting post of the housing 12, and the locking link 4 reciprocates along it. Figure 6 As shown.

[0030] The outward-opening linkage arm 7 and the opening rocker arm 9 are sequentially installed on the opening shaft of the lock body 13, with the outward-opening linkage arm 7 at the bottom. One side of the sliding arm 8 is placed in the slide groove of the opening rocker arm 9, and the other cylindrical side is placed in the oblong groove of the opening rocker arm 9, reciprocating along the oblong groove. The flange of the opening rocker arm 9 is placed outside the pawl connecting shaft, forming an overlap. Figure 7 As shown.

[0031] Ratchet 11 is mounted on ratchet shaft 15, and pawl 10 is mounted on pawl shaft 16. One end of ratchet shaft 15 and pawl shaft 16 are riveted to the door lock cover plate 14 of lock body 13, and the other end is riveted to the connecting plate 17 of lock body 13. Pawl 10 disengages to release ratchet 11.

[0032] Working principle of the double-pull opening mechanism for car door locks:

[0033] 1. When the inner handle is pulled for the first time, the inner opening cable 1 drives the inner opening rocker arm 2. The protruding flange of the inner opening rocker arm 2 drives the inner locking rocker arm 3 to rotate. The inner locking rocker arm 3 is connected to the locking linkage 4, pushing the locking linkage 4 in the unlocking direction. Figure 2 As shown, this causes the sliding arm 8 to return to its unlocking position under the action of the return spring. At this time, the outward opening linkage arm 7 and the opening rocker arm 9 are engaged, as shown. Figure 3 As shown.

[0034] 2. When the inner handle is pulled a second time, the inner opening cable 1 drives the inner opening rocker arm 2, and the inner opening linkage arm 5, riveted to the inner opening rocker arm 2, moves together, pushing the outer opening linkage arm 7. At this time, the outer opening linkage arm 7 and the opening rocker arm 9 are in an overlapping state, and the opening rocker arm 9 rotates under the push of the outer opening linkage arm 7, as... Figure 4 As shown.

[0035] 3. Turning the rocker arm 9 pushes the pawl shaft 16, causing the pawl 10 to disengage, releasing the ratchet 11, and opening the door lock. Figure 5 As shown.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-pull opening mechanism for an automotive door lock, comprising a housing (12) and a lock body (13), characterized in that: The housing (12) is provided with an inner opening rocker arm (2) connected to the inner handle. The inner opening rocker arm (2) is connected to the locking link (4) through the inner locking rocker arm (3) and is used to drive the locking link (4) to reciprocate. An inner opening linkage arm (5) is connected to the inner opening rocker arm (2). The lock body (13) is provided with an outward opening linkage arm (7) and an opening rocker arm (9). A sliding arm (8) is provided between the outward opening linkage arm (7) and the opening rocker arm (9). The locking link (4) is used to restrict the movement of the sliding arm (8). After the locking link (4) reciprocates, it can cause the sliding arm (8) to return to the unlocking direction under the action of the return spring, so that the outward opening linkage arm (7) and the opening rocker arm (9) form an overlap. The inner opening linkage arm (5) is used to push the outer opening linkage arm (7) and the opening rocker arm (9) connected to the outer opening linkage arm (7) to move. The opening rocker arm (9) is used to drive the pawl (10) of the lock body (13) to move to disengage and release the ratchet (11).

2. The car door lock inward double-pull opening mechanism according to claim 1, characterized in that: The inner handle is connected to the inner opening rocker arm (2) via an inner opening cable (1). The inner opening cable (1) is fixed to the housing (12) by a snap-fit, and the connector of the inner opening cable (1) is hung on the inner opening rocker arm (2).

3. The double-pull opening mechanism for an inward-opening car door lock according to claim 1, characterized in that: The inner opening rocker arm (2) is mounted on the inner opening rocker arm shaft of the housing (12), and the inner opening linkage arm (5) is riveted to the inner opening rocker arm (2) through the inner opening linkage shaft (6).

4. The double-pull opening mechanism for an inward-opening car door lock according to claim 1, characterized in that: The inner locking rocker arm (3) is installed on the inner locking shaft of the housing (12), and one end notch is engaged with the cylinder of the locking link (4) to form an overlap. The oblong groove of the locking link (4) is installed on the locking link mounting post of the housing (12), and the locking link (4) can reciprocate along it.

5. The double-pull opening mechanism for an inward-opening car door lock according to claim 1, characterized in that: The outward-opening linkage arm (7) and the opening rocker arm (9) are sequentially installed on the opening shaft of the lock body (13). One side of the sliding arm (8) is placed in the sliding groove of the opening rocker arm (9), and the cylinder on the other side is placed in the oval groove of the opening rocker arm (9) and can reciprocate along the oval groove. The flange of the opening rocker arm (9) is placed outside the pawl connecting shaft to form an overlap.

6. The double-pull opening mechanism for an inward-opening car door lock according to claim 1, characterized in that: The ratchet (11) is mounted on the ratchet shaft (15), and the pawl (10) is mounted on the pawl shaft (16). One end of the ratchet shaft (15) and the pawl shaft (16) are riveted to the door lock cover plate (14) of the lock body (13), and the other end is riveted to the connecting plate (17) of the lock body (13).

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