A structurally compact and multifunctional front door lock assembly for a vehicle

Abstract

The present invention discloses a compact and multifunctional front door lock assembly for an automobile. The front door lock assembly of the present invention is compact, the positions and mating relationships of various components are reasonable, and it has diverse functions. In addition to the basic functions of external opening, internal opening, central control, and key insurance, while keeping the positional relationships of the structures of other components unchanged, by only changing the structure of the internal locking rocker arm and cooperating with the internal locking linkage rod and the internal opening linkage plate, a single-opening pull-lock function, a non-straddling unlocking function, or a double-pull unlocking function can be customized according to the personalized choices of customers. Moreover, an emergency locking function can be selected to meet the personalized needs of different customers at the lowest cost and with the least number of part replacements.

Description

Technical Field

[0001] The invention relates to a multifunctional automobile front door lock assembly with compact structure. Background Art

[0002] The front door lock of a car usually has an outside opening function, which opens the door lock through the outside opening rocker arm; an inside opening function, which opens the door lock through the inside opening rocker arm, and a central control function, which directly realizes the unlocking function of the door lock through the motor; the key insurance function, the outside locking rocker arm drives the outside locking toggle plate to realize the unlocking function of the door lock. According to the personalized needs of the user, it is usually necessary to customize the single-opening zipper function according to the customer's personalized choice. In the locked state, the inside opening rocker arm directly opens the door lock, or the non-cross-type unlocking function, the inside locking rocker arm makes the outside opening invalid, and the inside locking rocker arm has a Move the inner locking linkage rod so that the inner locking linkage rod cannot drive the inner opening linkage plate, and the inner opening fails, thereby realizing the unlocking function of the door lock; or the double-pull unlocking function, in the locked state, the inner opening rocker arm directly acts on the inner locking rocker arm, so that the inner locking linkage rod returns to the initial position, drives the inner opening linkage plate, and then realizes the inner opening function to open the door lock; in order to realize these functions, it is necessary to increase the cost of parts and mold opening, etc. On the other hand, the design space of the door lock is usually limited. Therefore, it is urgent to realize the multi-function of the door lock in a smaller volume. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the technical requirement of the prior art that a door lock with multiple functions in a smaller volume is urgently needed, and to provide a compact and multifunctional automobile front door lock assembly.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A multifunctional automobile front door lock assembly comprises a bottom plate, a lock body and an upper cover plate, wherein the bottom plate is covered with the lock body and the lock body is provided with the upper cover plate;

[0006] A pawl shaft and a ratchet shaft are arranged on the reverse side of the bottom plate, a pawl is arranged on the pawl shaft, and a ratchet matched with the pawl is arranged on the ratchet shaft; a mounting hole for a pawl pull pin is arranged on the pawl, and a pawl buffer block is arranged between the pawl pull pin and the pawl;

[0007] A ratchet buffer block matched with the ratchet is arranged on the reverse side of the lock body; a lock buffer block is arranged between the ratchet and the lock body; a locking toggle plate is arranged on the front side of the lock body, a worm wheel is arranged on the right side of the locking toggle plate, a motor is arranged on the right side of the worm wheel, the worm of the motor is meshed with the worm wheel, and a conductive plate sub-assembly is arranged on the motor; an inner opening linkage plate shaft is arranged on the left side of the locking toggle plate, one end of the inner opening linkage plate shaft is fixed on the bottom plate, and the other end passes through the lock body, an inner opening toggle plate is arranged between the inner opening linkage plate shaft and the lock body, and the inner opening toggle plate can toggle the ratchet pawl pin;

[0008] The locking toggle plate can be toggled by the inner locking rocker arm on the upper cover plate. The locking toggle plate is assembled with the turbine. There is a waist-shaped hole on the locking toggle plate, and a boss matching the waist-shaped hole is arranged on the turbine;

[0009] An outer-opening rocker arm is arranged on one side of the front of the bottom plate through which the pawl shaft passes. There is an outer-opening bushing between the outer-opening rocker arm and the pawl shaft 18. One end of the support plate is riveted to the pawl shaft, and the other end is riveted to the turbine. The support plate can play a reinforcing role and disperse the force received by the pawl shaft; an outer-opening toggle rod is arranged on the outer-opening rocker arm, and a pawl bushing is arranged between the pawl and the pawl shaft; the locking toggle plate can enable the outer-opening toggle rod to toggle the pawl pin;

[0010] During specific implementation, the lock catch ring on the vehicle pushes the ratchet to rotate to a certain angle and engages with the pawl. After reaching the engagement position, the car door is locked; when opening, the outer-opening cable or rod drives the outer-opening rocker arm, and the outer-opening rocker arm drives the outer-opening toggle rod to toggle the pawl pin, so that the pawl disengages from the engagement position with the ratchet; the inner-opening cable drives the inner-opening rocker arm, and the inner-opening rocker arm drives the inner-opening toggle plate to toggle the pawl pin, so that the pawl and the ratchet disengage from the engagement position.

[0011] The front door lock assembly of the present invention has a compact structure, reasonable positions and mating relationships of various components, and diverse functions. In addition to the basic outer-opening function, inner-opening function, central control function, and key insurance function, while keeping the positional relationships of the structures of other components unchanged, only by changing the structure of the inner locking rocker arm and cooperating with the inner locking linkage rod and the inner-opening linkage plate, the single-opening pull-lock function or the non-leaping unlocking function or the double-pull unlocking function can be customized according to the personalized selection of customers, so as to meet the personalized needs of different customers with the lowest cost and the least increase in parts. Brief Description of the Drawings

[0012] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention. In the drawings:

[0013] Figure 1 is an exploded structural schematic diagram of the lock body assembly of the present invention under the single-opening unlocking function;

[0014] Figure 2 is a structural schematic diagram of the single-opening pull-lock mechanism;

[0015] Figure 3 is a structural schematic diagram of the inner-opening rocker arm in the single-opening pull-lock mechanism;

[0016] Figure 4 is a structural schematic diagram of the non-leaping unlocking mechanism;

[0017] Figure 5Schematic diagram of the structure of the inner opening rocker arm of the non-step unlocking mechanism;

[0018] Figure 6 Schematic diagram of the structure of the double-pull unlocking mechanism;

[0019] Figure 7 Schematic diagram of the structure of the inner opening rocker arm of the double-pull unlocking mechanism.

[0020] Figure 8 Schematic diagram of the structure of the outer locking rocker arm;

[0021] Figure 9 Schematic diagram of the structure of the outer locking toggle plate;

[0022] Figure 10 Schematic diagram of the structure after the outer locking toggle plate and the outer locking rocker arm are snap-connected;

[0023] Figure 11 Partial schematic diagram of the structure of the present invention;

[0024] Figure 12 Partial schematic diagram of the structure of the present invention;

[0025] Figure 13 Schematic diagram of the structure of the emergency locking function of the present invention. Detailed implementation manners

[0026] 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 only for the purpose of illustrating and explaining the present invention, and are not used to limit the present invention.

[0027] Embodiment

[0028] As Figure 1 shown, a multifunctional front door lock assembly for an automobile includes a bottom plate 19, a lock body 13 and an upper cover plate 1. The lock body 13 is covered on the bottom plate 19, and the upper cover plate 1 is arranged on the lock body 13;

[0029] A pawl shaft 18 and a ratchet shaft 28 are arranged on the reverse side of the bottom plate. A pawl 16 is arranged on the pawl shaft 18, and a ratchet 29 cooperating with the pawl is arranged on the ratchet shaft 28; an installation hole for a pawl pull pin 14 is arranged on the pawl 16, and a pawl buffer block 15 is arranged between the pawl pull pin 14 and the pawl 16;

[0030] A ratchet buffer block 31 cooperating with the ratchet 29 is arranged on the reverse side of the lock body 13; a lock catch buffer block 30 is arranged between the ratchet 29 and the lock body 13;

[0031] On the front of the lock body 13, there are a locking toggle plate 7 and a ratchet shaft 18. On the right side of the locking toggle plate 7, there is a worm gear 27. On the right side of the worm gear 27, there is a motor 23, and the worm 22 of the motor meshes with the worm gear 27. On the upper part of the motor 23, there is a conductive plate sub-assembly 21; on the left side of the locking toggle plate 7, there is an inside-opening linkage plate shaft 12. One end of the inside-opening linkage plate shaft 12 is fixed on the bottom plate 19, and the other end passes through the lock body 13. Between the inside-opening linkage plate shaft 12 and the lock body 13, there is an inside-opening toggle plate 10, and the inside-opening toggle plate 10 can toggle the pawl pin 14;

[0032] The locking toggle plate 7 is related to the inside locking rocker arm on the upper cover plate. The locking toggle plate 7 is assembled with the worm gear 27. There is an oblong hole on the locking toggle plate 7, and there is a boss on the worm gear 27 that cooperates with the oblong hole;

[0033] On one side of the front of the bottom plate through which the pawl shaft 18 passes, there is an outside-opening rocker arm 11. Between the outside-opening rocker arm 11 and the pawl shaft 18, there is an outside-opening bushing 9. One end of the support plate 26 is riveted to the pawl shaft 18, and the other end is riveted to the worm gear; on the outside-opening rocker arm 11, there is an outside-opening toggle rod 8. Between the pawl 16 and the pawl shaft 18, there is a pawl bushing 17; the locking toggle plate 7 can make the outside-opening toggle rod 8 toggle the pawl pin 14;

[0034] On one side of the upper cover plate 1, there is an inside-opening rocker arm shaft 5. On the inside-opening rocker arm shaft 5, there is an inside-opening rocker arm 2. Between the inside-opening rocker arm 2 and the inside-opening rocker arm shaft 5, there is an inside-opening shaft sleeve 6; on the upper cover plate on the other side of the inside-opening rocker arm 2, there is an inside locking rocker arm shaft 4. Inside the inside locking rocker arm shaft 4, there is an inside locking rocker arm 3. There is a movement space for the inside-opening rocker arm 2 on the inside locking rocker arm 3; on the reverse side of the upper cover plate 1, there is an outside locking toggle plate 25, and on the front, there is an outside locking rocker arm 24; the outside locking rocker arm 24 passes through the upper cover plate and is assembled with the outside locking toggle plate 25 through barbs. The outside locking toggle plate 25 is used to actuate the worm gear 27, and the worm gear 27 makes the locking toggle plate 7 act, and further makes the outside-opening toggle rod 8 act.

[0035] During specific implementation, the lock catch ring on the vehicle pushes the ratchet 29 to rotate to a certain angle and meshes with the pawl 16. After reaching the meshing position, the car door is locked; when opening, the outside-opening cable or rod drives the outside-opening rocker arm 11, and the outside-opening rocker arm 11 drives the outside-opening toggle rod 8 to toggle the pawl pin 14, so that the pawl 16 is disengaged from the meshing position with the ratchet 29; the inside-opening cable drives the inside-opening rocker arm 2, and the inside-opening rocker arm 2 drives the inside-opening toggle plate 10 to toggle the pawl pin 14, so that the pawl 16 and the ratchet 29 are disengaged from the meshing position.

[0036] I. General functions

[0037] Outside-opening function: The outside-opening rocker arm 11 pushes the outside-opening toggle rod 8, and the outside-opening toggle rod 8 toggles the pawl pin 14 to open the door lock by the pawl 16;

[0038] Inward opening function: The inward opening rocker arm 2 pushes the inward opening toggle plate 10, and the inward opening toggle plate 10 toggles the pawl pin 14 to open the door lock by the pawl 16;

[0039] Central control function: The motor 23 drives the worm gear 27 to rotate and directly acts on the locking toggle plate 7, causing the outward opening lever 8 and the pawl pin 14 to be misaligned, realizing the unlocking and locking functions of the door lock.

[0040] Key insurance function: The outer locking rocker arm 24 drives the outer locking toggle plate 25, the outer locking toggle plate 25 toggles the worm gear 27, and the worm gear 27 drives the locking toggle plate 7, causing the outward opening lever 8 and the pawl pin 14 to be misaligned, realizing the unlocking and locking functions of the door lock;

[0041] II. One-of-three unlocking functions:

[0042] Single-pull unlocking function:

[0043] As Figures 2 - 3 shown, the inward opening rocker arm 2 is respectively provided with a first inward opening rocker arm claw 51 that cooperates with the inner locking rocker arm 3 and a second inward opening rocker arm claw 52 that cooperates with the inward opening toggle plate 10, so that the inward opening rocker arm 2 moves along the inner locking rocker arm 3 and toggles the inward opening toggle plate 10. Figure 2 (a) is a front structural schematic diagram of the single-pull unlocking mechanism, Figure 2 (b) is a back structural schematic diagram of the single-pull unlocking mechanism; Figure 3 (a) is a front structural schematic diagram of the inward opening rocker arm in the single-pull unlocking mechanism, Figure 3 (b) is a back structural schematic diagram of the inward opening rocker arm in the single-pull unlocking mechanism;

[0044] In the locked state, the first inward opening rocker arm claw 5 of the inward opening rocker arm 2 moves along the inner locking rocker arm 3, and its second inward opening rocker arm claw 52 toggles the inward opening toggle plate 10, and the inward opening toggle plate 10 toggles the pawl pin 14 to open the door lock by the pawl 16;

[0045] Under the single-pull unlocking function, the inward opening rocker arm 2 has no waist-shaped hole, and there is an extra second inward opening rocker arm claw 52 that can push the inward opening toggle plate 10 and a first inward opening rocker arm claw 51 that cooperates with the inner locking rocker arm 3.

[0046] Non-straddling unlocking function:

[0047] As Figures 4 - 5 shown, the inward opening rocker arm 2 is provided with a waist-shaped hole for installing the inner locking linkage rod (60), and an inward opening linkage plate 61 is further provided on the inward opening bushing 6, and the inner locking rocker arm 3 can drive the inner locking linkage rod 60 to move.

[0048] Figure 4 (a) is a front structural schematic diagram of the non-straddling unlocking mechanism; Figure 4(b) is a schematic structural view of the reverse side of the non-step unlocking mechanism; Figure 5 (a) is a schematic structural view of the front side of the lower inner opening rocker arm of the non-step unlocking mechanism; Figure 5 (b) is a schematic structural view of the reverse side of the lower inner opening rocker arm of the non-step unlocking mechanism;

[0049] The inner locking rocker arm 3 toggles the locking toggle plate 7, separating the outer opening toggle rod 8 from the pawl toggle pin 14, rendering the outer opening ineffective. The inner locking rocker arm 2 drives the inner locking linkage rod 60, such that the inner locking linkage rod 60 cannot drive the inner opening linkage plate 61, making the inner opening ineffective, thus achieving the unlocking and locking functions of the door lock;

[0050] The inner opening rocker arm 2 under the non-step unlocking function is provided with an oblong hole 63.

[0051] Double-pull unlocking function:

[0052] Under the double-pull unlocking function, the inner opening rocker arm 2 is provided with an oblong hole for installing the inner locking linkage rod 60 and a first inner opening rocker arm claw 51 that cooperates with the inner locking rocker arm 3.

[0053] As Figures 6 - 7 shown, the inner opening rocker arm 2 is provided with an oblong hole 63 for installing the inner locking linkage rod 60 and a first inner opening rocker arm claw 51 that cooperates with the inner locking rocker arm 3. An inner opening linkage plate 61 is also provided on the inner opening bushing 6. The inner locking rocker arm 3 can drive the inner locking linkage rod 60 to move. Figure 7 (a) is a schematic front structural view of the inner opening rocker arm under the double-pull unlocking mechanism, Figure 7 (b) is a schematic front structural view of the inner opening rocker arm under the double-pull unlocking mechanism;

[0054] In the locked state, the inner opening rocker arm 2 directly acts on the inner locking rocker arm 3 through the first inner opening rocker arm claw 51 that cooperates with the inner locking rocker arm 3, causing the inner locking linkage rod 60 to return to its initial position, driving the inner opening linkage plate 61, and then realizing the inner opening function to open the door lock.

[0055] As Figures 8 - 10 shown, six barbs 64 are provided on one side of the outer locking rocker arm 24 facing the upper cover plate. Six barb insertion holes 65 that cooperate with the barbs are provided on the outer locking toggle plate 25. The outer locking rocker arm 24 passes through the upper cover plate and is snap-connected to the outer locking toggle plate 25. This assembly method is not only simple and convenient but also not easily detached.

[0056] Figure 11 This is a partial structural view of the present invention; Figure 11 It shows a schematic combined state diagram of several components such as the locking toggle plate 7, the outer opening rocker arm 11, the outer opening toggle rod 8, the pawl toggle pin 14, and the pawl 16 together.

[0057] Figure 12 This is a partial structural view of the present invention;Figure 12 (a) and Figure 12 (b) respectively show schematic diagrams of the combined state of several components, namely the outer locking rocker arm 24, the outer locking toggle plate 25, the worm gear 27, and the outer opening toggle rod 8, from the front and back sides.

[0058] In addition, the lock body of the present invention can also choose whether to add an emergency locking function. Specifically, it includes an emergency lock rotating block 70 that can toggle the locking toggle plate 7. When the key rotates the emergency rotating block 70, the emergency rotating block 70 can toggle the locking toggle plate 7, causing the outer opening toggle rod 8 to be misaligned with the pawl dial pin 14, thereby realizing the locking function of the door lock.

[0059] Figure 13 It is a schematic diagram of the structure of the emergency locking function of the present invention. Figure 13 (a) shows the positional relationship among the locking toggle plate 7, the outer opening toggle rod 8, and the pawl dial pin 14; Figure 13 (b) shows the installation position of the emergency lock rotating block 70.

[0060] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A structurally compact and multifunctional front door lock assembly for an automobile, comprising a bottom plate (19), a lock body (13) and an upper cover plate (1). The lock body (13) is covered on the bottom plate (19), and the upper cover plate (1) is arranged on the lock body (13). It is characterized in that: On the reverse side of the bottom plate, there are provided a pawl shaft (18) and a ratchet shaft (28). A pawl (16) is provided on the pawl shaft (18), and a ratchet (29) cooperating with the pawl is provided on the ratchet shaft (28); an installation hole for a pawl dial pin (14) is provided on the pawl (16). On the front surface of the lock body (13), there is provided a locking toggle plate (7). A worm gear (27) is assembled on the right side of the locking toggle plate (7). The worm gear (27) drives the locking toggle plate (7) to move. The worm gear (27) meshes with the worm (22) of the motor (23), and a conductive plate subassembly is provided on the motor; on the left side of the locking toggle plate (7), there is provided an inside-opening linkage plate shaft (12), and an inside-opening toggle plate (10) is provided on the inside-opening linkage plate shaft (12). The inside-opening toggle plate (10) can toggle the pawl dial pin (14). On one side of the bottom plate where the pawl shaft (18) passes through the front surface, there is provided an outside-opening rocker arm (11); an outside-opening toggle rod (8) is provided on the outside-opening rocker arm (11); the locking toggle plate (7) can actuate the outside-opening toggle rod (8) to toggle the pawl dial pin (14). On one side of the upper cover plate (1), there is provided an inside-opening rocker arm shaft (5), and an inside-opening rocker arm (2) is provided on the inside-opening rocker arm shaft (5). An inside-opening shaft sleeve (6) is provided between the inside-opening rocker arm (2) and the inside-opening rocker arm shaft (5); on the upper cover plate (1) on the other side of the inside-opening rocker arm (2), there is provided an inside-locking rocker arm shaft (4), and an inside-locking rocker arm (3) is provided inside the inside-locking rocker arm shaft (4). The inside-opening rocker arm (2) can drive the inside-locking rocker arm (3) to move, and the inside-locking rocker arm (3) is fixedly connected to the locking toggle plate (7); on the reverse side of the upper cover plate (1), there is provided an outside-locking toggle plate (25), and on the front surface, there is provided an outside-locking rocker arm (24); the outside-locking rocker arm (24) passes through the upper cover plate and is assembled with the outside-locking toggle plate (25), and the outside-locking toggle plate (25) can toggle the worm gear (27). On the inside-opening rocker arm (2), there are provided a first inside-opening rocker arm claw (51) cooperating with the inside-locking rocker arm (3) and a second inside-opening rocker arm claw (52) cooperating with the inside-opening toggle plate (10), so that the inside-opening rocker arm (2) moves along the inside-locking rocker arm (3) and toggles the inside-opening toggle plate (10); or a waist-shaped hole (63) for installing an inside-locking linkage rod (60) is provided on the inside-opening rocker arm (2), and an inside-opening linkage plate (61) is further provided on the inside-opening shaft sleeve (6). The inside-locking rocker arm (3) can drive the inside-locking linkage rod (60) to move; or a waist-shaped hole for installing an inside-locking linkage rod (60) and a first inside-opening rocker arm claw (51) cooperating with the inside-locking rocker arm (3) are provided on the inside-opening rocker arm (2), and an inside-opening linkage plate (61) is further provided on the inside-opening shaft sleeve (6); the inside-locking rocker arm (3) can drive the inside-locking linkage rod (60) to move.

2. The structurally compact and multifunctional front door lock assembly for an automobile according to claim 1, characterized in that, A support plate (26) is welded between the worm gear (27) and the pawl shaft (18).

3. The structurally compact and multifunctional front door lock assembly for an automobile according to claim 1, characterized in that, On one side of the outside-locking rocker arm (24) facing the upper cover plate, there are provided a plurality of barbs, and barb insertion holes cooperating with the barbs are provided on the outside-locking toggle plate (25). The outside-locking rocker arm (24) passes through the upper cover plate and is snap-connected with the outside-locking toggle plate (25).

4. The structurally compact and multifunctional front door lock assembly for an automobile according to claim 1, characterized in that, On the reverse side of the lock body (13), there is a ratchet buffer block (31) that cooperates with the ratchet wheel (29); a latch buffer block (30) is provided between the ratchet wheel (29) and the lock body (13).

5. The structurally compact and multifunctional front door lock assembly for an automobile according to claim 1, characterized in that, One end of the inner-opening linkage plate shaft (12) is fixed to the bottom plate (19), and the other end passes through the lock body (13). The inner-opening toggle plate (10) is arranged between the bottom plate (19) and the lock body (13).

6. The structurally compact and multifunctional front door lock assembly for an automobile according to claim 1, characterized in that, An outer-opening bushing (9) is provided between the outer-opening rocker arm (11) and the pawl shaft (18), and a pawl bushing (17) is provided between the pawl (16) and the pawl shaft (18).

7. The structurally compact and multifunctional front door lock assembly for an automobile according to claim 1, characterized in that, It includes an emergency lock rotating block (70) that can toggle the locking toggle plate (7). When the key rotates the emergency rotating block (70), the emergency rotating block (70) can toggle the locking toggle plate (7) to misalign the outer-opening toggle rod (8) and the pawl pin (14), realizing the locking function of the door lock.

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