Automobile door lock device

Abstract

The invention relates to the technical field of automobile locks, in particular to an automobile door lock device which utilizes a specific transmission structure to achieve unlocking transmission, is high in expandability and improves product universality, a locking mechanism and an unlocking mechanism are installed in a door lock shell, and the locking mechanism comprises a worm connected with a motor and a toothed rotating block matched with the worm. The toothed rotating block is movably connected with one end of a long connecting rod, a locking block is arranged at the other end of the long connecting rod, a first limiting groove is formed in the locking block, and the unlocking mechanism comprises an unlocking driving block, a first rotating transmission block, a second rotating transmission block and a door lock unlocking block; the unlocking driving block is rotationally installed on the door lock shell, one end of the unlocking driving block is connected with the unlocking pull rod, and the other end of the unlocking driving block abuts against the transmission stress side of the first rotating transmission block. A first moving head at one end of the unlocking transmission block is movably arranged in the first limiting groove, and a second moving head at the other end of the unlocking transmission block is movably arranged in the second limiting groove.

Description

Technical Field

[0001] The invention relates to the technical field of automobile locks, in particular to an automobile door lock device. Background Art

[0002] Cars are currently a common means of transportation, and car doors are an important component. Door lock devices for closing the car doors are installed on the car doors. The door locks can be opened by pulling outward to unlock and pulling inward to unlock. When pulling outward to unlock, the locked state on the car door needs to be changed to the unlocked state, and then the outer door handle can be pulled to open the car door. The unlocked state is achieved by motor drive. The existing transmission method directly drives the locking mechanism to drive the unlocking mechanism to enter the unlocked state by the motor. Although the transmission is direct, the scalability is poor. The structure needs to be redesigned for new functions, and the versatility is poor. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a car door lock device, which utilizes a unique transmission structure to achieve unlocking transmission, has strong scalability, and improves product versatility.

[0004] The technical solution is as follows: a car door lock device, which includes a door lock housing, a locking mechanism and an unlocking mechanism installed in the door lock housing, characterized in that the locking mechanism includes a worm connected to a motor, a toothed rotating block matched with the worm, the toothed rotating block movably connected to one end of a long connecting rod, the other end of the long connecting rod is provided with a locking block, a first limiting groove is provided on the locking block, the unlocking mechanism includes an unlocking drive block, a first rotating transmission block, a second rotating transmission block, and a door lock unlocking block, the unlocking drive block is rotatably installed on the door lock housing and one end is connected to the unlocking pull rod and the other end is connected to the first rotating The transmission force-bearing side of the rotating transmission block is abutted, and a second limiting groove is opened on the second rotating transmission block. The first moving head at one end of the unlocking transmission block is movably set in the first limiting groove, and the second moving head at the other end is movably set in the second limiting groove. The transmission head of the first rotating transmission block cooperates with the unlocking transmission block, and the transmission head of the second rotating transmission block cooperates with the door lock unlocking block; when the first rotating transmission block rotates, it pushes the unlocking transmission block to move, and the unlocking transmission block drives the second rotating transmission block to rotate, and the transmission head of the second rotating transmission block pushes the door lock unlocking block to rotate to achieve unlocking.

[0005] It is further characterized in that a limiting notch is provided on the toothed rotating block, and a limiting block located in the limiting notch is installed on the door lock housing; A first torsion spring is installed on the locking block, one end of the first torsion spring abuts against the locking block, and the other end of the first torsion spring abuts against the unlocking transmission block; A positioning shaft is installed on the door lock housing, the first rotating transmission block and the second rotating transmission block are both rotatably installed on the positioning shaft, a second torsion spring is also mounted on the positioning shaft, one end of the second torsion spring abuts against the door lock housing, and a reset head is provided on the first rotating transmission block and the second rotating transmission block to abut against the other end of the second torsion spring; The bottoms of the reset heads of the first rotating transmission block and the second rotating transmission block are both provided with convex points, and the door lock housing is provided with grooves matching with the convex points; A guide strip is disposed at the end of the locking block, and a guide seat matching with the guide strip is provided on the door lock housing; An anti-drop block is provided on the top of the first moving head of the unlocking transmission block; The toothed rotating block is provided with a boss, the long connecting rod is provided with a guide groove whose size is larger than the boss, and the boss abuts against the inner wall of the guide groove to realize the movable connection between the toothed rotating block and the long connecting rod; A manual unlocking piece is installed on the door lock housing, and a matching pushing block and a pushed block are provided on the manual unlocking piece and the toothed rotating block; A child lock device or an internal unlocking device is installed in the door lock housing; The child lock device comprises an inner unlocking block, an inner unlocking lever, and a lever seat, wherein the inner unlocking block and the inner unlocking lever are rotatably mounted on the inner unlocking shaft, one end of the inner unlocking block is provided with an inner unlocking head, the second rotating transmission block is provided with an inner unlocking transmission head cooperating with the inner unlocking head, the other end of the inner unlocking block is provided with a rotatable lock block, and the lever seat is rotatably connected to the door lock housing; when the lever seat is in the child lock unlocking position, the inner unlocking lever contacts the rotatable lock block when actuated and drives the inner unlocking block to rotate, and the inner unlocking head pushes the second rotating transmission block to unlock the inside of the door; when the lever seat is rotated to the child lock locked position, the rotatable lock block is contacted and rotated by the lever seat, and the inner unlocking lever does not contact with the rotatable lock block when actuated, and cannot drive the inner unlocking block to rotate to unlock the inside; The inner unlocking device includes an inner unlocking block, which is rotatably mounted on the inner unlocking shaft, one end of the inner unlocking block is provided with an inner unlocking head and a connecting rod unlocking head, the second rotating transmission block is provided with an inner unlocking transmission head that cooperates with the inner unlocking head, the long connecting rod is provided with an unlocking protrusion that cooperates with the connecting rod unlocking head, and the other end of the inner unlocking block is connected to the inner handle driving mechanism.

[0006] After adopting the present invention, an unlocking mechanism consisting of an unlocking drive block, a first rotating transmission block, a second rotating transmission block, a door lock unlocking block, and an unlocking transmission block is designed, and a long connecting rod transmission method is adopted between the locking mechanism driven by the motor to realize the unlocking and locking functions. The multi-stage transmission structure can conveniently add extended functions without changing the original structure, thereby effectively improving the versatility of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a schematic diagram of the interior of the door lock housing in the unlocked state of the present invention; Figure 2 for Figure 1 The schematic diagram when the long connecting rod and the unlocking transmission block are omitted; Figure 3 for Figure 2 Schematic diagram from another perspective; Figure 4 To show the installation diagram of the second torsion spring; Figure 5 To show the schematic diagram of the positioning shaft and groove; Figure 6 This is a diagram of the installation of a child lock on the back of the door lock housing; Figure 7 To show the installation diagram of the manual release part; Figure 8 It is a schematic diagram of the components of a child lock device; Fig. 9 for Figure 1 Top view; Fig.10 It is a schematic diagram of the long connecting rod and the unlocking transmission block in the locked state; Fig.11 This is a schematic diagram of the interior of the door lock housing in the locked state of the present invention. DETAILED DESCRIPTION

[0008] See Figures 1 to 10 As shown, a car door lock device comprises a door lock housing 1, a locking mechanism and an unlocking mechanism are installed in the door lock housing 1, the locking mechanism comprises a worm 3 connected to a motor 2, a toothed rotating block 4 matched with the worm 3, the toothed rotating block 4 is movably connected to one end of a long connecting rod 5, the other end of the long connecting rod 5 is provided with a locking block 6, a first limiting groove 7 is provided on the locking block 6, the unlocking mechanism comprises an unlocking drive block 8, a first rotating transmission block 9, a second rotating transmission block 10, and a door lock unlocking block 11, the unlocking drive block 8 is rotatably installed on the door lock housing 1, one end of the unlocking pull rod 12 is connected, and the other end abuts against the transmission force side of the first rotating transmission block 9, Figure 1As described in the above, a pressure head 13 is installed on the unlocking drive block 8 to resist the transmission force side of the first rotating transmission block 9, a second limiting groove 14 is provided on the second rotating transmission block 10, a first moving head 16 at one end of the unlocking transmission block 15 is movably arranged in the first limiting groove 7, and a second moving head 17 at the other end is movably arranged in the second limiting groove 14, the transmission head of the first rotating transmission block 9 cooperates with the unlocking transmission block 15, and the transmission head of the second rotating transmission block 10 cooperates with the door lock unlocking block 11; in the unlocking state: when the first rotating transmission block 9 rotates, it pushes the unlocking transmission block 15 to move, the unlocking transmission block 15 drives the second rotating transmission block 10 to rotate, and the transmission head of the second rotating transmission block 10 pushes the door lock unlocking block 11 to rotate to achieve unlocking; in the locked state, Fig.11 As shown, at this time, the motor 2 drives the worm 3, the worm 3 drives the toothed rotating block 4 to rotate, the long connecting rod 5 moves to the left, drives the unlocking transmission block 15 to move left, and the second moving head 17 changes its position in the second limiting groove 14. At this time, when the first rotating transmission block 9 rotates, it cannot contact the unlocking transmission block 15, which is equivalent to idling. The second rotating transmission block 10 is not affected and the door cannot be opened.

[0009] A limit notch 18 is provided on the toothed rotating block 4, and a limit block 19 located in the limit notch 18 is installed on the door lock housing 1 to ensure that the toothed rotating block 4 does not rotate excessively. A guide bar 20 is provided at the end of the locking block 6, and a guide seat 21 cooperating with the guide bar 20 is provided on the door lock housing 1 to ensure that the long connecting rod 5 can move along a straight line without swinging up and down, thereby achieving reliable locking and unlocking.

[0010] The locking block 6 is provided with a first torsion spring 22, one end of the first torsion spring 22 abuts against the locking block 6, and the other end abuts against the unlocking transmission block 15. Under the unlocking operation, the unlocking transmission block 15 moves, and the first moving head 16 moves to the left in the first limiting groove 7. After the unlocking is completed, after the unlocking driving block 8 is released, the first torsion spring 22 can reset the unlocking transmission block 15. An anti-slip block 26 is provided on the top of the first moving head 16 of the unlocking transmission block 15 to prevent it from escaping from the first limiting groove 7.

[0011] A positioning shaft 23 is installed on the door lock housing 1, and the first rotating transmission block 9 and the second rotating transmission block 10 are both rotatably installed on the positioning shaft 23. A second torsion spring 24 is also mounted on the positioning shaft 23, and one end of the second torsion spring 24 abuts against the door lock housing 1. The first rotating transmission block 9 and the second rotating transmission block 10 are both provided with a reset head that abuts against the other end of the second torsion spring 24, which is also for resetting the first rotating transmission block 9 and the second rotating transmission block 10 after rotation.

[0012] The bottom of the reset head of the first rotating transmission block 9 and the second rotating transmission block 10 are both provided with a convex point, and a groove 25 matching with the convex point is opened on the door lock housing 1. When the first rotating transmission block 9 and the second rotating transmission block 10 are not in action, the convex point is stuck in the groove 25, which can prevent the first rotating transmission block 9 and the second rotating transmission block 10 from rotating during non-unlocking operation.

[0013] A boss 26 is provided on the toothed rotating block 4, and a guide groove 27 slightly larger than the boss 26 is provided on the long connecting rod 5. The boss 26 abuts against the inner wall of the guide groove 27 to realize the movable connection between the toothed rotating block 4 and the long connecting rod 5. When the toothed rotating block 4 rotates, the boss 26 swings, allowing the long connecting rod 5 to move horizontally to the left and right.

[0014] A manual unlocking member 28 is installed on the door lock housing 1, and matching pushing blocks 29 and pushed blocks 30 are provided on the manual unlocking member 28 and the toothed rotating block 4. When the car door is open and the motor 2 is not working, in order to allow the long connecting rod 5 and the unlocking transmission block 15 to enter the locked state, the key can be used to rotate the manual unlocking member 28, and the pushing block 29 pushes the pushed block 30, so that the long connecting rod 5 is pushed to the left, thereby changing it to the locked state.

[0015] According to the differences between the front doors and rear doors, they will be equipped with internal unlocking devices and child lock devices respectively.

[0016] The child lock device is installed on the rear door, and the child lock device includes a first inner unlocking block 31, an inner unlocking lever 32, and a lever seat 33. The first inner unlocking block 31 and the inner unlocking lever 32 are both rotatably mounted on the inner unlocking shaft 34. An inner unlocking head 35 is provided at one end of the first inner unlocking block 31, and an inner unlocking transmission head 36 cooperating with the inner unlocking head 35 is provided on the second rotating transmission block 10. A rotatable lock block 37 is provided at the other end of the first inner unlocking block 31, and the lever seat 32 is rotatably connected to the door lock housing 1; Fig.10 In the unlocking state, the lever seat 32 is in the child lock unlocking position. When the inner unlocking lever 32 moves (swings upward), it contacts the rotatable lock block 37 and drives the first inner unlocking block 31 to rotate. The inner unlocking head 31 pushes the second rotating transmission block 10 to unlock the inner side of the door. When the lever on the lever seat 32 is rotated to the child lock locking position, the rotatable lock block 37 is contacted by the lever seat 33 and rotates to the left first. A U-shaped opening is provided on the inner unlocking lever 32. When it swings upward, the inner unlocking lever does not contact the rotatable lock block 37, which is equivalent to idling, and cannot drive the first inner unlocking block 31 to rotate and unlock the inner side, completing the child lock function. 43 in the figure is a third torsion spring, which is used to reset the first inner unlocking block 31 and the inner unlocking lever 32.

[0017] The inner unlocking device is installed in the front door. When the door is opened from the inside, it can be unlocked, that is, the long connecting rod 5 is pushed to the right. The inner unlocking device includes a second inner unlocking block 38, which is rotatably installed on the second inner unlocking shaft 39. One end of the second inner unlocking block 38 is provided with a second inner unlocking head 40 and a connecting rod unlocking head 41. The second rotating transmission block 10 is provided with an inner unlocking transmission head 36 that cooperates with the second inner unlocking head 4. The long connecting rod 5 is provided with an unlocking protrusion 42 that cooperates with the connecting rod unlocking head 41. The other end of the second inner unlocking block 38 is connected to the inner handle driving mechanism. When the door is opened from the inside, the second inner unlocking block 38 rotates, and the unlocking protrusion 42 is first pushed by the connecting rod unlocking head 41, so that the long connecting rod 5 moves to the right, and drives the unlocking transmission block 15 to reach the unlocking position. As the second inner unlocking block 38 continues to rotate, the second rotating transmission block 10 rotates to unlock the inside of the door.

Claims

1. A car door lock device, comprising a door lock housing, wherein a locking mechanism and an unlocking mechanism are installed in the door lock housing, characterized in that: The locking mechanism comprises a worm connected to a motor and a toothed rotating block matched with the worm, the toothed rotating block is movably connected to one end of a long connecting rod, and a locking block is arranged at the other end of the long connecting rod, and a first limiting groove is provided on the locking block, and the unlocking mechanism comprises an unlocking driving block, a first rotating transmission block, a second rotating transmission block, and a door lock unlocking block, the unlocking driving block is rotatably installed on the door lock housing and one end of the unlocking driving block is connected to the unlocking pull rod, and the other end is abutted against the transmission force-bearing side of the first rotating transmission block, a second limiting groove is provided on the second rotating transmission block, a first moving head at one end of the unlocking transmission block is movably arranged in the first limiting groove, and a second moving head at the other end is movably arranged in the second limiting groove, the transmission head of the first rotating transmission block cooperates with the unlocking transmission block, and the transmission head of the second rotating transmission block cooperates with the door lock unlocking block; when the first rotating transmission block rotates, it pushes the unlocking transmission block to move, the unlocking transmission block drives the second rotating transmission block to rotate, and the transmission head of the second rotating transmission block pushes the door lock unlocking block to rotate to achieve unlocking.

2. A vehicle door lock device according to claim 1, characterized in that: A limiting notch is provided on the toothed rotating block, and a limiting block located in the limiting notch is installed on the door lock housing; a first torsion spring is installed on the locking block, and one end of the first torsion spring abuts against the locking block and the other end abuts against the unlocking transmission block.

3. The automobile door lock device according to claim 1, characterized in that: A positioning shaft is installed on the door lock housing, and the first rotating transmission block and the second rotating transmission block are both rotatably installed on the positioning shaft. A second torsion spring is also mounted on the positioning shaft, and one end of the second torsion spring abuts against the door lock housing. The first rotating transmission block and the second rotating transmission block are both provided with a reset head that abuts against the other end of the second torsion spring.

4. The automobile door lock device according to claim 1, characterized in that: The bottoms of the reset heads of the first rotating transmission block and the second rotating transmission block are both provided with convex points, and the door lock housing is provided with grooves matching with the convex points.

5. The automobile door lock device according to claim 1, characterized in that: A guide strip is arranged at the end of the locking block, and a guide seat matching with the guide strip is provided on the door lock housing.

6. The automobile door lock device according to claim 1, characterized in that: The toothed rotating block is provided with a boss, the long connecting rod is provided with a guide groove whose size is larger than the boss, and the boss abuts against the inner wall of the guide groove to realize the movable connection between the toothed rotating block and the long connecting rod.

7. The automobile door lock device according to claim 1, characterized in that: A manual unlocking piece is installed on the door lock housing, and matching pushing blocks and pushed blocks are arranged on the manual unlocking piece and the toothed rotating block.

8. The automobile door lock device according to claim 1, characterized in that: A child lock device or an internal unlocking device is installed in the door lock housing.

9. The automobile door lock device according to claim 1, characterized in that: The child lock device comprises an inner unlocking block, an inner unlocking lever, and a lever seat, wherein the inner unlocking block and the inner unlocking lever are rotatably mounted on the inner unlocking shaft, one end of the inner unlocking block is provided with an inner unlocking head, and the second rotating transmission block is provided with an inner unlocking transmission head cooperating with the inner unlocking head, and the other end of the inner unlocking block is provided with a rotatable lock block, and the lever seat is rotatably connected to the door lock housing; when the lever seat is in the child lock unlocking position, the inner unlocking lever contacts the rotatable lock block when actuated and drives the inner unlocking block to rotate, and the inner unlocking head pushes the second rotating transmission block to unlock the inside of the vehicle door; when the lever seat is rotated to the child lock locked position, the rotatable lock block is contacted and rotated by the lever seat, and the inner unlocking lever does not contact with the rotatable lock block when actuated, and cannot drive the inner unlocking block to rotate to unlock the inside.

10. The automobile door lock device according to claim 1, characterized in that: The inner unlocking device includes an inner unlocking block, which is rotatably mounted on the inner unlocking shaft, one end of the inner unlocking block is provided with an inner unlocking head and a connecting rod unlocking head, the second rotating transmission block is provided with an inner unlocking transmission head that cooperates with the inner unlocking head, the long connecting rod is provided with an unlocking protrusion that cooperates with the connecting rod unlocking head, and the other end of the inner unlocking block is connected to the inner handle driving mechanism.

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