Vehicle door lock with anti-falling and anti-blocking functions

Abstract

A vehicle door lock with anti-escape and anti-blocking functions comprises a carrier, a lock plate, a first unlocking member, a second unlocking member and a relay member rotatably connected to the carrier. The lock plate has a blocking block and a first blocked portion. The first unlocking member has a driven portion, a protruding column and a first blocking portion blocking the first blocked portion. The second unlocking member has a protruding arm, a second blocked portion and a second blocking portion blocking the protruding column. The relay member has a driving portion, a top portion and a third blocked portion. When the relay member is rotated, the top portion pushes the second unlocking member to release the protruding column, the first blocking portion leaves the first blocked portion to release the lock plate, the blocking block blocks the second blocked portion and the protruding arm blocks the third blocked portion. Thus, the anti-escape effect of preventing the first blocking portion from escaping or leaving the first blocked portion and the anti-blocking effect of preventing the first unlocking member from blocking the rotation of the lock plate are achieved.

Description

Technical Field

[0001] This invention relates to car door locks, and in particular to a car door lock that combines anti-detachment and anti-blocking functions. Background Technology

[0002] Regarding car door locks, they are mainly installed on the car doors and function in conjunction with the locking rods fixed to the vehicle body.

[0003] The existing door lock has a lock plate and an unlocking member that are side by side. The locking plate and the first blocked part of the unlocking member use the frictional force between them in the tangential direction to keep the unlocking member blocking the lock plate in the locked state.

[0004] However, since the existing door locks rely solely on the tangential friction between the lock plate and the unlocking component to maintain the locking state, the unlocking component is prone to detaching or slipping from the lock plate due to factors such as vibration, which in turn affects the locking state of the door lock.

[0005] Furthermore, in existing car door locks, when the door is half-closed (i.e., not fully closed), the unlocking component, due to its resetting action, causes its stop to block the second blocked part of the lock plate, preventing the lock plate from rotating and thus making the door unable to open. To overcome this problem of the door being unable to open due to being half-closed, the inventors of this invention discovered, after research, that currently, the only solution is to add two more unlocking components, resulting in a total of three unlocking components. Combined with the existing frame, lock plate, and braking components of the car door lock, this leads to an excessive number of components, an overly complex structure, and a susceptibility to malfunction. Summary of the Invention

[0006] The purpose of this invention is to provide a car door lock that has both anti-detachment and anti-blocking functions.

[0007] To achieve the above objectives, the present invention provides a car door lock with both anti-detachment and anti-blocking functions, comprising: a carrier; a lock plate rotatably connected to the carrier and having a stop block and a first blocked portion; a first unlocking member rotatably connected to the carrier and having a first stop portion, a driven portion, and a protrusion, the first stop portion blocking the first blocked portion; and a second unlocking member rotatably connected to the carrier and having a second stop portion, a protruding arm, and a second blocked portion. The first unlocking member has a first stop portion that blocks the protrusion, and a relay member that is rotatably connected to the carrier and has a driving portion, a top portion and a third blocked portion, the driving portion and the driven portion corresponding to each other; wherein the relay member rotates relative to the carrier, the top portion pushes up the second unlocking member to release the protrusion, the first stop portion moves away from the first blocked portion to release the locking plate, the locking plate is stopped by the stop block at the second blocked portion, and the second unlocking member blocks the third blocked portion by the protruding arm.

[0008] Compared with the prior art, the present invention has the following effects: it has both the anti-disengagement effect of preventing the first stop part from slipping off or disengaging from the first blocked part and the anti-blocking effect of preventing the first unlocking member from resetting and blocking the rotation of the lock plate. Attached Figure Description

[0009] Figure 1 This is a three-dimensional schematic diagram of the door lock of the present invention when viewed from the rear.

[0010] Figure 2 This is a three-dimensional schematic diagram of the door lock of the present invention when viewed from the front.

[0011] Figure 3 This invention is based on Figure 1 A three-dimensional exploded diagram.

[0012] Figure 4 This invention is based on Figure 2 A three-dimensional exploded diagram.

[0013] Figure 5 and Figure 6 These are rear and front view schematic diagrams of the door lock of the present invention in its initial state.

[0014] Figure 7 This is a rear view schematic diagram of the door lock of the present invention when the relay member raises the second unlocking member.

[0015] Figure 8 and Figure 9 These are rear and front views of the door lock of the present invention when the first unlocking member continues to rotate.

[0016] Figure 10 and Figure 11 These are rear and front views of the door lock of the present invention when the second unlocking member blocks the relay member.

[0017] Figure 12 and Figure 13 These are rear and front view schematic diagrams of the door lock of the present invention when the second unlocking member no longer blocks the relay member.

[0018] Explanation of symbols in the attached diagram:

[0019] 1: Carrier;

[0020] 11: First page;

[0021] 12: Second page;

[0022] 13: First trench;

[0023] 14: Second trench;

[0024] 15: Groove;

[0025] 151: Through hole;

[0026] 2: Lock plate;

[0027] 21a, 21b: First blocked part;

[0028] 22: Stop;

[0029] 23: Tiger's Mouth;

[0030] 3: First unlocking component;

[0031] 31: First stop part;

[0032] 32: The passive part;

[0033] 33: Convex column;

[0034] 4: Second unlocking component;

[0035] 41: Stop arm;

[0036] 412: Second stop;

[0037] 42: convex body;

[0038] 422: The second blocked part;

[0039] 43: Top;

[0040] 44: Extending arm;

[0041] 5: Relay;

[0042] 51: Driving Department;

[0043] 52: Top arm;

[0044] 521: Top;

[0045] 53: The third blocked part;

[0046] 54: Pulling part;

[0047] 6a, 6b: Flexible components;

[0048] L: Locking bar. Detailed Implementation

[0049] The detailed description and technical content of the present invention are illustrated below with reference to the accompanying drawings. However, the accompanying drawings are provided for reference and illustration only and are not intended to limit the present invention.

[0050] This invention provides a car door lock that combines anti-detachment and anti-blocking functions, which can be applied to various car doors such as front doors, rear doors and tailgates, and even engine compartment doors (commonly known as engine hoods).

[0051] like Figures 1 to 6As shown, the present invention provides a door lock (hereinafter referred to as the door lock) that combines anti-detachment and anti-blocking functions, used to connect with a locking rod L fixed to the vehicle body (see...). Figure 6 The interaction includes: a carrier 1, a locking plate 2, a first unlocking component 3, a second unlocking component 4, and a relay component 5.

[0052] The carrier 1 has a first surface 11 and a second surface 12 that are opposite to each other. Specifically, the carrier 1 also has a first groove 13, a second groove 14, and a through hole 151 penetrating the first surface 11 and the second surface 12. Preferably, it also has... Figure 4 As shown, a groove 15 is formed on the first surface 11 of the carrier 1, and a through hole 151 is opened at one point of the groove 15.

[0053] The locking plate 2 is rotatably connected to the first surface 11 of the carrier 1, and an elastic component 6a is provided between the locking plate 2 and the carrier 1. A stop block 22 protrudes from one side of the locking plate 2 (the side adjacent to the first surface 11), and two first blocked portions 21a and 21b and a tiger's mouth 23 are formed on the outer periphery of the locking plate 2. Figure 6 As shown, in the initial state, the locking rod L is locked in the jaw 23 of the locking plate 2.

[0054] The first unlocking member 3 is rotatably connected to the first surface 11 of the carrier 1, and an elastic component 6b is provided between the first unlocking member 3 and the carrier 1. The first unlocking member 3 has a first stop portion 31, a driven portion 32, and a protrusion 33. Wherein, as... Figure 5 and Figure 6 As shown, in the initial state, the first stop 31 stops at one of the first blocked parts 21a of the locking plate 2, the driven part 32 passes through the first groove 13, and the protrusion 33 passes through the second groove 14.

[0055] The second unlocking member 4 is rotatably connected to the second surface 12 of the carrier 1. It has a second stop 412, a second blocked portion 422, and a protruding arm 44. Preferably, the second unlocking member 4 also protrudes a stop arm 41, a protrusion 42, and a top portion 43. The second stop 412 is formed at one location on the stop arm 41; the second blocked portion 422 is formed at one location on the protrusion 42; and the top portion 43 is located between the stop arm 41 and the protrusion 42. Furthermore, a height difference portion (component symbol not shown) may be formed between the top portion 43 and the second unlocking member 4. Figure 5 and Figure 6 As shown, in the initial state, the stop arm 41 is positioned between the two ends of the second groove 14 (or: the stop arm 41 is positioned on the movement path of the protrusion 33), so that the second stop portion 412 blocks the protrusion 33; the second blocked portion 422 of the protrusion 42 is located on the rotation path of the aforementioned stop block 22. Therefore, even in the event of conditions such as vibration, such as Figure 6As shown, when the first stop portion 31 of the first unlocking member 3 is stopped at the first blocked portion 21a of the locking plate 2, the first unlocking member 3 will be unable to rotate because the protrusion 33 is blocked by the second stop portion 412. Since the first unlocking member 3 cannot rotate, the first stop portion 31 will not disengage or slip off from the first blocked portion 21a. In other words, the present invention has an anti-disengagement effect that prevents the first stop portion 31 from slipping off or disengaging from the first blocked portion 21a.

[0056] The relay member 5 is rotatably connected to the second surface 12 of the carrier 1 and is coaxially arranged with the aforementioned first unlocking member 3. The relay member 5 has a driving part 51, a top 521, a third blocking part 53, and a pulling part 54. Preferably, the relay member 5 also has a protruding top arm 52, one portion of which the top 521 is formed. Figure 5 and Figure 6 As shown, in the initial state, the driving part 51 and the driven part 32 interfere with each other and are in contact (of course, they may only correspond to each other but not yet in contact, not shown in the figure); the aforementioned top 43 is located on the rotation path of the top 521; the third blocked part 53 corresponds to the aforementioned protruding arm 44; the pulling part 54 is connected to and is actuated by the door handle (not shown in the figure).

[0057] like Figure 7 As shown, when the user pulls the aforementioned pulling part 54 via the door handle (e.g., manual, electric control, or remote control, which will not be further explained hereafter), the relay 5 drives the driven part 32 via the driving part 51, causing the first unlocking member 3 to rotate relative to the carrier 1 along with the relay 5. At this time, the correspondingly swaying top arm 52 pushes the top 43 with its top 521, raising the second unlocking member 4, so that the second stop part 412 of the stop arm 41 no longer blocks the protrusion 33, that is, it is in the state of releasing the protrusion 33.

[0058] like Figure 8 and Figure 9 As shown, the user continues to pull, and the first unlocking component 3 continues to rotate relative to the carrier 1 along with the relay component 5. At this time, as... Figure 8 The second unlocking member 4 is pushed higher, and the first unlocking member 3, with the protrusion 33, moves from one end of the second groove 14 to the other, so that the protrusion 33 is in the removed position; as Figure 9 After the first unlocking member 3 continues to rotate, its first stop part 31 separates from the first blocked part 21a and releases the locking plate 2, so that the locking plate 2 is in a rotatable state.

[0059] like Figure 10 and Figure 11 As shown, the user no longer pulls the aforementioned pull part 54, and the locking plate 2 can rotate because it has been released. At this time, as... Figure 10The top 521 of the actuator 5 enters the aforementioned height difference section, causing the protruding arm 44 to stop the third blocked section 53; in Figure 10 During this process, the first unlocking member 3 begins to reverse along with the relay member 5 due to the action of the elastic component 6b. However, because the third blocked part 53 of the relay member 5 is blocked by the protruding arm 44 of the second unlocking member 4, it cannot reverse. The first unlocking member 3 also cannot reverse because the driven part 32 is blocked by the driving part 51 of the relay member 5. Consequently, the protruding post 33 cannot reverse back to its initial position and remains in the aforementioned moved-out position. As for the stop 22 of the locking plate 2, it is located in the groove 15 (see... Figure 4 It slides inside and protrudes from the through hole 151, contacting the second blocked part 422. For example... Figure 11 This reveals that the lock plate 2 has rotated counterclockwise, and because the first unlocking member 3 is blocked by the driven part 51 as mentioned above, the first unlocking member 3 is unable to reset to block the other first blocked part 21b of the lock plate 2 by the first stop part 31. Thus, the lock plate 2 can still rotate and the door can still be opened when the door is half closed (i.e., the door is not fully closed) or half open. In other words, the present invention has the anti-blocking effect of preventing the first unlocking member 3 from resetting and blocking the rotation of the lock plate 2.

[0060] like Figure 12 and Figure 13 As shown, the locking plate 2 continues to rotate, causing its stop 22 to push the second blocked part 422 further up the second unlocking member 4, and maintaining the stop 22 blocking the second blocked part 422, thus keeping the second unlocking member 4 in the pushed-up state. This causes the protruding arm 44 of the second unlocking member 4 to no longer block the third blocked part 53. At this time, the relay 5 returns to its initial state by reversing (see...). Figure 12 As for the first unlocking component 3, it cannot rotate because it is blocked by the outer periphery of the locking plate 2 (see...). Figure 13 The protrusion 33 of the first unlocking component 3 remains in the aforementioned moved-out position (see...). Figure 12 As for the lock plate 2, it rotates counterclockwise due to the opening action, so that the web 23 faces the direction where the door can be opened (see...). Figure 13 ).

[0061] Of course, simply closing the car door at this point will cause the locking lever L to rotate the locking plate 2 clockwise, thereby actuating other components and causing all components of the car door lock of this invention to return to their original positions. Figure 5 and Figure 6 The initial state is shown.

[0062] The above description is merely a preferred embodiment of the present invention and does not limit the scope of the patent. All equivalent structural changes made based on the description and drawings of the present invention are also included within the scope of the present invention and are hereby declared.

Claims

1. A car door lock that combines anti-detachment and anti-blocking functions, characterized in that, include: One carrier; A locking plate is rotatably connected to the carrier and has a stop and a first blocked part; A first unlocking component is rotatably connected to the carrier and has a first stop portion, a driven portion and a protrusion, wherein the first stop portion stops at the first blocked portion; A second unlocking member is rotatably connected to the carrier and has a second stop, a protruding arm and a second blocked part, wherein the second stop blocks the protruding post; as well as A relay member is rotatably connected to the carrier and has a driving part, a top and a third blocked part, the driving part and the blocked part corresponding to each other; The relay rotates relative to the carrier, the top pushes up the second unlocking member to release the protrusion, the first stop part moves away from the first blocked part to release the locking plate, the locking plate is stopped by the stop block at the second blocked part, and the second unlocking member blocks the third blocked part with the protruding arm.

2. The door lock with both anti-detachment and anti-blocking functions as described in claim 1, characterized in that, The carrier has a through hole, and the locking plate and the second unlocking member are respectively connected to two opposite surfaces of the carrier. The stop block is blocked by the second blocked part through the through hole.

3. The door lock with both anti-detachment and anti-blocking functions according to claim 2, characterized in that, One side of the carrier has a recessed groove, and the through hole is opened at one point in the groove. The block is exposed to the through hole by sliding in the groove and is blocked at the second blocked part.

4. The door lock with both anti-detachment and anti-blocking functions according to claim 1, characterized in that, The second unlocking member has a protruding arm, and the second stop portion is formed at one point of the arm. The arm blocks the protrusion by blocking the movement path of the protrusion, thereby allowing the second stop portion to block the protrusion.

5. The door lock with both anti-detachment and anti-blocking functions according to claim 1, characterized in that, The second unlocking member has a protrusion, and the second blocked part is formed at one point of the protrusion. The protrusion keeps the second unlocking member in the state of releasing the protrusion by the second blocked part being blocked by the stop block.

6. The door lock with both anti-detachment and anti-blocking functions according to claim 1, characterized in that, The relay has a protruding top arm, the top being formed at one point on the top arm, and the second unlocking member has a top that the relay pushes the top with the top by rotating the top, the top being located on the rotation path of the top.

7. The door lock with both anti-detachment and anti-blocking functions according to claim 1, characterized in that, The carrier has a groove, and the first unlocking member and the second unlocking member are respectively connected to two opposite surfaces of the carrier. The protrusion is located in the groove and moves within the groove.

8. The door lock with both anti-detachment and anti-blocking functions according to claim 1, characterized in that, The locking plate further raises the second unlocking member by pushing the second blocked part with the stop block, and the protruding arm blocks the third blocked part.

9. The door lock with both anti-detachment and anti-blocking functions according to claim 1, characterized in that, The carrier has a first surface and a second surface that are opposite to each other and has a through hole and a groove. The locking plate and the first unlocking member are both connected to the first surface, the relay member and the second unlocking member are both connected to the second surface, the stop block is blocked at the second blocked part through the through hole, and the protrusion is located in the groove and moves in the groove.

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