Locking mechanism of automobile central lock

Abstract

The utility model provides a locking mechanism of an automobile central lock, and belongs to the technical field of automobile door locks. The locking mechanism solves the problems that an existing locking mechanism of an automobile central lock is complex in structure and poor in stability. The locking mechanism of the automobile central control lock comprises a central control lock rod arranged in a sliding mode, one end of the central control lock rod extends to a mechanical key shaft, a driving assembly used for driving the central control lock rod to slide when the mechanical key shaft rotates is arranged between the mechanical key shaft and the central control lock rod, and the central control lock rod is provided with an abutting part capable of abutting against a central control unlocking and locking sliding block. When the abutting part pushes the center control unlocking and locking sliding block, the center control unlocking and locking sliding block and the acting column can keep away from each other. The locking function of the door lock is efficiently achieved through the central control lock rod, the structure is simple and reliable, stability is good, and compared with an existing locking structure of a complex structure, cost is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile door locks and relates to a locking mechanism for an automobile central control lock. Background Art

[0002] At present, the structure of some automobile central control locks includes an outside door cable lever and a slider lever rotatably arranged on an unlocking shaft outside the vehicle, and a central control unlocking slider is rotatably installed on the slider lever through a rotating shaft and a torsion spring. It also includes a block lever and a block rotatably arranged on the block shaft, and a card plate driven by the block. The block lever is provided with an action column. When opening the door, the outside door cable lever is rotated by pulling the wire of the door handle outside, and the outside door cable lever drives the slider lever to rotate together. Under the torsion force of the torsion spring and the blocking action of the slider lever, the central control unlocking slider slides toward the action column and abuts against the action column, thereby driving the block lever and the block to rotate. When the block rotates, it will drive the card plate stuck on the vehicle body lock hook to rotate, so that the card plate is separated from the lock hook to achieve unlocking.

[0003] The locking mechanism of the central locking system of the automobile can block the work of the pull wire of the door handle outside the door to the block lever and block inside the door lock, thereby locking the door. At present, the door locking mechanism on the market has the problems of complex structure, high cost and poor stability. Utility Model Content

[0004] The utility model aims to solve the above problems in the prior art and proposes a vehicle central lock locking mechanism with a relatively simple structure.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] The locking mechanism of the automobile central lock includes a sliding central lock rod, one end of which extends to the mechanical key shaft, and a driving component is provided between the mechanical key shaft and the central lock rod for driving the central lock rod to slide when the mechanical key shaft rotates. The central lock rod has a supporting portion that can be against the central unlocking slider, and when the supporting portion pushes the central unlocking slider, the central unlocking slider and the action column can avoid air.

[0007] When the vehicle door needs to be locked, the mechanical key drives the mechanical key shaft to rotate, and the central control lock rod is driven to slide in the vehicle door by the assembly, and the abutment portion pushes the central control unlocking slider to deviate to the side away from the slider rod, thereby achieving the clearance of the central control unlocking slider and the action column. At this time, the door outside cable lever is pulled to rotate by the outside door handle pull wire, and the door outside cable lever drives the slider rod to rotate together, and under the torsion of the torsion spring and the blocking action of the slider rod, the central control unlocking slider slides toward the action column. Since the central control unlocking slider and the action column are clear, the movement of the central control unlocking slider will not be transmitted to the action column, and will not drive the block rod and the block to rotate, and the door cannot be opened.

[0008] When the vehicle door needs to be unlocked, the mechanical key drives the mechanical key shaft to rotate in the opposite direction, and the central control lock rod slides in the opposite direction in the vehicle door by driving the assembly, and the abutting portion disengages from the push on the central control unlocking slider, and the central control unlocking slider is reset under the action of the torsion spring. At this time, the outside door handle pulls the cable lever to rotate, and the outside door cable lever drives the slider lever to rotate together, so that the central control unlocking slider slides toward the direction of the working column and abuts against the working column, thereby driving the block lever and the block to rotate. When the block rotates, it will drive the card plate stuck on the vehicle body lock hook to rotate, so that the card plate is separated from the lock hook to achieve unlocking.

[0009] In the above-mentioned automobile central lock locking mechanism, the driving component includes a forward finger and a reverse finger arranged on the mechanical key shaft, and the central lock rod has a first lever extending between the forward finger and the reverse finger. When the forward finger moves the first lever, it drives the central lock rod to slide, so that the abutment part pushes the central unlocking slider. When the reverse finger moves the first lever, it drives the central lock rod to slide, so that the central unlocking slider is separated from the push of the abutment part.

[0010] The mechanical key shaft has two states under the action of the mechanical key: an unlocked state and a locked state. When the mechanical key shaft is in the unlocked state, the reverse finger pushes the first lever to make the central control unlocking slider disengage from the push of the abutment portion; when the mechanical key shaft is in the locked state, the forward finger pushes the first lever to make the central control unlocking slider and the action column avoid air.

[0011] In the above-mentioned automobile central lock locking mechanism, a second shift column is provided on the central lock rod, a central lock connecting rod is forked on the second shift column, and one end of the central lock connecting rod away from the second shift column is rotatably sleeved on a gear shaft provided in the vehicle door, and an electric component for driving the central lock connecting rod to rotate around the gear shaft is provided on the gear shaft.

[0012] The end of the central lock connecting rod near the second shifting column is a shifting fork mounted on the second shifting column. The axis of the gear shaft is parallel to the axis of the second shifting column, and the axis of the second shifting column is parallel to the axis of the first shifting column. When the electric component is working, it can drive the central lock connecting rod to rotate forward and reverse, thereby pushing the central lock rod to slide. The function of the central lock connecting rod is the same as that of the driving component. The driving component is mechanically driven, while the central lock connecting rod is electrically driven.

[0013] In the above-mentioned automobile central lock locking mechanism, the electric component includes a motor, a worm driven by the motor, and a worm wheel rotatably mounted on the gear shaft, the worm wheel is meshed with the worm, and a transmission structure is provided between the worm wheel and the central lock connecting rod for driving the central lock connecting rod to rotate in the same direction when the worm wheel rotates.

[0014] When the motor is working, it will drive the worm to rotate, and the worm will mesh with the worm wheel, thereby driving the worm wheel to rotate. The worm wheel drives the central locking connecting rod to rotate around the gear shaft through the transmission structure, and cooperates with the second shift column to push the central locking rod to slide.

[0015] In the above-mentioned automobile central lock locking mechanism, the central lock connecting rod is located on one side of the worm wheel, and the transmission structure includes an arc-shaped slot provided on the worm wheel and a protrusion provided on the central lock connecting rod and extending into the arc-shaped slot, and the width of the arc-shaped slot is greater than the width of the protrusion. When the worm wheel rotates a certain angle, the end surfaces at both ends of the arc-shaped slot begin to push the protrusion, thereby driving the central lock connecting rod to rotate. The arc-shaped slot provides a clearance space for the movement of the protrusion, so that the driving component will not be blocked by the worm wheel when it moves.

[0016] In the above-mentioned automobile central lock locking mechanism, the central lock rod is provided with a shift spring, and the shift spring is provided with a first latching groove and a second latching groove.

[0017] A shift column is provided in the vehicle door. When the first latching groove is latched on the shift column, the central locking lever is in a first state, and the vehicle door is in a locked state; when the second latching groove is latched on the shift column, the central locking lever is in a second state, and the vehicle door is in an unlocked state.

[0018] Compared with the prior art, the automobile central lock locking mechanism has the following advantages:

[0019] The door locking function is efficiently realized through the central locking rod, the structure is simple and reliable, the stability is good, and the cost is low compared to the existing complex locking structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram when the central locking system is in the locked state.

[0021] Figure 2 It is a structural diagram when the central locking system is in unlocked state.

[0022] Figure 3 It is a structural schematic diagram of the locking mechanism of the central control lock of the automobile.

[0023] Figure 4 This is a schematic diagram of the coordination between the worm gear and the central locking connecting rod.

[0024] Figure 5 It is a schematic diagram of the structure of the shift spring.

[0025] In the figure, 1. the outside unlocking shaft; 2. the outside door cable lever; 3. the slider lever; 4. the rotating shaft; 5. the torsion spring; 6. the central control unlocking slider; 7. the block shaft; 8. the block lever; 9. the action column; 10. the central control locking rod; 11. the mechanical key shaft; 12. the abutment portion; 13. the forward claw; 14. the reverse claw; 15. the first lever column; 16. the second lever column; 17. the central control locking connecting rod; 18. the gear shaft; 19. the motor; 20. the worm; 21. the worm wheel; 22. the arc-shaped slot; 23. the raised portion; 24. the shift spring; 25. the first positioning slot; 26. the second positioning slot. DETAILED DESCRIPTION

[0026] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0027] like Figure 1 and Figure 2 The car central lock shown includes an outside door cable lever 2 and a slider lever 3 which are rotatably arranged on an outside vehicle unlocking shaft 1. The outside vehicle unlocking shaft 1 is arranged inside the vehicle door. A central control unlocking slider 6 is rotatably installed on the slider lever 3 through a rotating shaft 4 and a torsion spring 5. Under the action of the torsion spring 5, the central control unlocking slider 6 rests on the slider lever 3.

[0028] like Figure 1 and Figure 2 As shown, the central lock also includes a block lever 8 and a block rotatably sleeved on the block shaft 7, and a card plate driven by the block (not shown in the figure). An action column 9 is provided on the block lever 8. When the door is opened, the outer door cable lever 2 is pulled to rotate by the outer door handle pull wire, and the outer door cable lever 2 drives the slider lever 3 to rotate together, so that the central control unlocking slider 6 slides toward the action column 9 and rests on the action column 9, thereby driving the block lever 8 and the block to rotate. When the block rotates, it will drive the card plate stuck on the vehicle body lock hook to rotate, so that the card plate is separated from the lock hook, and the vehicle door is unlocked.

[0029] The automobile central lock locking mechanism is used to make the central control unlocking slider 6 and the action column 9 avoid air, such as Figure 1-3 As shown, it includes a central locking rod 10 slidably arranged in the door, one end of the central locking rod 10 extends to the mechanical key shaft 11, and a driving component is arranged between the mechanical key shaft 11 and the central locking rod 10 for driving the central locking rod 10 to slide when the mechanical key shaft 11 rotates. Figure 3 As shown, the central locking rod 10 has a supporting portion 12 that can be pressed against the central unlocking slider 6. When the supporting portion 12 pushes the central unlocking slider 6, the central unlocking slider 6 and the action column 9 can avoid the air.

[0030] When the vehicle door needs to be locked, the mechanical key drives the mechanical key shaft 11 to rotate, and the central control lock rod 10 is driven by the assembly to slide in the vehicle door, and the abutment portion 12 pushes the central control unlocking slider 6 to deviate to the side away from the slider lever 3, thereby achieving the clearance of the central control unlocking slider 6 and the action column 9. At this time, the door outer cable lever 2 is pulled to rotate by the door outer handle pull wire, and the door outer cable lever 2 drives the slider lever 3 to rotate together, and under the torsion of the torsion spring 5 and the blocking action of the slider lever 3, the central control unlocking slider 6 slides toward the action column 9. Since the central control unlocking slider 6 and the action column 9 are clear, the movement of the central control unlocking slider 6 will not be transmitted to the action column 9, and will not drive the block lever 8 and the block to rotate, and the door cannot be opened.

[0031] When the vehicle door needs to be unlocked, the mechanical key drives the mechanical key shaft 11 to rotate in the opposite direction, and the central control lock rod 10 is driven by the components to slide in the opposite direction in the vehicle door, and the abutment portion 12 is separated from the push on the central control unlocking slider 6. The central control unlocking slider 6 is reset under the action of the torsion spring 5. At this time, the door outer cable lever 2 is pulled to rotate by the pull wire of the door outer handle, and the door outer cable lever 2 drives the slider lever 3 to rotate together, so that the central control unlocking slider 6 slides toward the direction of the action column 9 and abuts against the action column 9, thereby driving the block lever 8 and the block to rotate. When the block rotates, it will drive the card plate stuck on the vehicle body lock hook to rotate, so that the card plate is separated from the lock hook to achieve unlocking.

[0032] like Figure 3 As shown, the driving assembly includes a forward finger 13 and a reverse finger 14 arranged on the mechanical key shaft 11, and the central locking rod 10 has a first lever 15 extending between the forward finger 13 and the reverse finger 14. When the forward finger 13 moves the first lever 15, it drives the central locking rod 10 to slide, so that the abutment 12 pushes the central unlocking slider 6. When the reverse finger 14 moves the first lever 15, it drives the central locking rod 10 to slide, so that the central unlocking slider 6 is separated from the push of the abutment 12.

[0033] The mechanical key shaft 11 has two states under the action of the mechanical key: an unlocked state and a locked state. When the mechanical key shaft 11 is in the unlocked state, the reverse finger 14 pushes the first lever 15 to make the central control unlocking slider 6 break away from the push of the abutment part 12; when the mechanical key shaft 11 is in the locked state, the forward finger 13 pushes the first lever 15 to make the central control unlocking slider 6 and the action column 9 avoid each other.

[0034] like Figure 3 As shown, the central locking rod 10 is provided with a second shift column 16, and the second shift column 16 and the first shift column 15 are located on the same side of the central locking rod 10. A central locking connecting rod 17 is forked on the second shift column 16. One end of the central locking connecting rod 17 away from the second shift column 16 is rotatably sleeved on a gear shaft 18 provided in the vehicle door. The gear shaft 18 is provided with an electric component for driving the central locking connecting rod 17 to rotate around the gear shaft 18.

[0035] One end of the central locking link 17 close to the second shifting column 16 is a shifting fork forked on the second shifting column 16. The axis of the gear shaft 18 is parallel to the axis of the second shifting column 16, and the axis of the second shifting column 16 is parallel to the axis of the first shifting column 15. When the electric component is working, it can drive the central locking link 17 to rotate forward and reverse, thereby pushing the central locking rod 10 to slide. The function of the central locking link 17 is the same as that of the driving component. The driving component is mechanically driven, while the central locking link 17 is electrically driven.

[0036] like Figure 3 As shown, the electric assembly includes a motor 19, a worm 20 driven by the motor 19, and a worm wheel 21 rotatably sleeved on the gear shaft 18, the worm wheel 21 meshes with the worm 20, and a transmission structure is provided between the worm wheel 21 and the central locking connecting rod 17 for driving the central locking connecting rod 17 to rotate in the same direction when the worm wheel 21 rotates. When the motor 19 is working, it will drive the worm 20 to rotate, the worm 20 meshes with the worm wheel 21, thereby driving the worm wheel 21 to rotate, and the worm wheel 21 drives the central locking connecting rod 17 to rotate around the gear shaft 18 through the transmission structure, and cooperates with the second shifting column 16 to push the central locking rod 10 to slide.

[0037] like Figure 4 As shown, the central locking link 17 is located on one side of the worm wheel 21, and the transmission structure includes an arc-shaped slot 22 provided on the worm wheel 21 and a protrusion 23 provided on the central locking link 17 and extending into the arc-shaped slot 22, and the width of the arc-shaped slot 22 is greater than the width of the protrusion 23. When the worm wheel 21 rotates a certain angle, the end surfaces at both ends of the arc-shaped slot 22 begin to push the protrusion 23, thereby driving the central locking link 17 to rotate. The arc-shaped slot 22 provides a clearance space for the movement of the protrusion 23, so that the driving component will not be blocked by the worm wheel 21 when it moves.

[0038] like Figure 3 As shown, a shift spring 24 is provided on the central locking lever 10. Figure 5 As shown, the shift spring 24 is provided with a first latching groove 25 and a second latching groove 26. A shift column is provided in the vehicle door, and when the first latching groove 25 is latched on the shift column, the central locking lever 10 is in a first state, at which time the vehicle door is in a locked state; when the second latching groove 26 is latched on the shift column, the central locking lever 10 is in a second state, at which time the vehicle door is in an unlocked state.

[0039] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A locking mechanism for a central locking system of an automobile, characterized in that: The invention comprises a central locking rod (10) which is arranged to slide, one end of which extends to a mechanical key shaft (11), a driving component for driving the central locking rod (10) to slide when the mechanical key shaft (11) rotates is arranged between the mechanical key shaft (11) and the central locking rod (10), and the central locking rod (10) has a supporting portion (12) which can be supported on a central unlocking slider, and when the supporting portion (12) pushes the central unlocking slider, the central unlocking slider and the action column can avoid air.

2. The automobile central locking mechanism according to claim 1, characterized in that: The driving assembly comprises a forward pusher claw (13) and a reverse pusher claw (14) arranged on the mechanical key shaft (11); the central control lock rod (10) has a first pusher post (15) extending between the forward pusher claw (13) and the reverse pusher claw (14); when the forward pusher claw (13) pushes the first pusher post (15), the central control lock rod (10) is driven to slide, so that the abutment portion (12) pushes the central control unlocking slider; when the reverse pusher claw (14) pushes the first pusher post (15), the central control lock rod (10) is driven to slide, so that the central control unlocking slider is separated from the push of the abutment portion (12).

3. The automobile central locking mechanism according to claim 1, characterized in that: The central locking rod (10) is provided with a second shifting column (16), a central locking connecting rod (17) is forked on the second shifting column (16), one end of the central locking connecting rod (17) away from the second shifting column (16) is rotatably sleeved on a gear shaft (18) provided in the vehicle door, and the gear shaft (18) is provided with an electric component for driving the central locking connecting rod (17) to rotate around the gear shaft (18).

4. The automobile central locking mechanism according to claim 3, characterized in that: The electric assembly comprises a motor (19), a worm (20) driven by the motor (19), and a worm wheel (21) rotatably sleeved on a gear shaft (18); the worm wheel (21) is meshed with the worm (20); and a transmission structure is provided between the worm wheel (21) and the central locking connecting rod (17) for driving the central locking connecting rod (17) to rotate in the same direction when the worm wheel (21) rotates.

5. The automobile central locking mechanism according to claim 4, characterized in that: The central locking connecting rod (17) is located on one side of the worm wheel (21), and the transmission structure comprises an arc-shaped slot (22) provided on the worm wheel (21) and a protrusion (23) provided on the central locking connecting rod (17) and extending into the arc-shaped slot (22), wherein the width of the arc-shaped slot (22) is greater than the width of the protrusion (23).

6. The automobile central locking mechanism according to claim 1, characterized in that: The central locking rod (10) is provided with a shift spring (24), and the shift spring (24) is provided with a first latching groove (25) and a second latching groove (26).

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