CN211369896U

CN211369896U - Self-resetting system of automobile door lock fastener

Info

Publication number: CN211369896U
Application number: CN201922077925.7U
Authority: CN
Inventors: 孙治国; 范建彬; 周旭坤; 楚俊鹏
Original assignee: Henan Lanjiya Intelligent Technology Co Ltd
Current assignee: Henan Lanjiya Intelligent Technology Co Ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-08-28
Anticipated expiration: 2029-11-27

Abstract

The utility model discloses an automobile door lock fastener is from reset system, including lock body mechanical part and automatically controlled action part, lock body mechanical part includes base, upper cover plate, rocking arm, driving lever, pawl, ratchet, pawl spring and ratchet spring, automatically controlled action part includes fastener and from reset signal switch; the base is provided with a U-shaped opening, the pawl and the ratchet wheel are respectively arranged at two sides of the U-shaped opening, and the pawl and the ratchet wheel are meshed; the self-reset signal switch is arranged on the base corresponding to the fixed block and matched with the fixed block; the locking device is arranged below the base and corresponds to the shifting rod, and the shifting rod is connected with an output shaft of the locking device penetrating through the base; the locking device and the self-reset signal switch are connected with the BCM of the vehicle. The utility model provides a compact structure is reasonable small, can positive reverse accurate reset, safe and reliable's automobile door lock dead lock is from reset system.

Description

Self-resetting system of automobile door lock fastener

Technical Field

The utility model belongs to the technical field of the automobile door lock, in particular to automobile door lock dead lock is from reset system.

Background

Along with the gradual improvement of the development of the automobile industry, the requirements of various host factories on the light weight of automobiles are higher and higher, and the light weight of the automobiles is to reduce the preparation quality of the automobiles as much as possible on the premise of ensuring the strength and the safety performance of the automobiles, so that the dynamic property of the automobiles is improved, the fuel consumption is reduced, and the exhaust pollution is reduced. The automobile door lock as an automobile body accessory also has the following trend, and develops towards the directions of complete functions, small volume, light weight and the like. At present, a common door lock self-reset system is mostly in small transmission ratio helical gear transmission, and reset is realized under the action of a torsional spring. The customer input of the sealing reaction force of the tail gate is generally larger, the transmission ratio has to be increased, the common practice is to adopt multi-stage transmission or increase the number of teeth of a driven wheel, but the appearance size of the locking device is increased, the weight is certainly increased, and therefore a mechanism which does not influence the design of the locking device to give the output force and accurately resets in the forward direction and the reverse direction has to be needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a compact structure is reasonable small, can positive reverse accurate reset, safe and reliable's automobile door lock dead lock is from reset system.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

a self-resetting system of a locking device of an automobile door lock comprises a mechanical part of a lock body and an electric control action part, wherein the mechanical part of the lock body comprises a base, an upper cover plate, a rocker arm, a lifting rod, a pawl, a ratchet wheel, a pawl spring and a ratchet wheel spring; the base is provided with a U-shaped opening, the pawl and the ratchet wheel are respectively arranged at two sides of the U-shaped opening, and the pawl is meshed with the ratchet wheel; the pawl and the ratchet wheel are provided with pawl shaft mounting holes and ratchet wheel shaft mounting holes, the pawl and the ratchet wheel are respectively fixed on the base through a pawl shaft and a ratchet wheel shaft arranged in the pawl shaft mounting holes and the ratchet wheel shaft mounting holes, and the pawl spring and the ratchet wheel spring are arranged in the pawl mounting holes and the ratchet wheel mounting holes through the pawl shaft and the ratchet wheel shaft; the rocker arm is fixed on the upper cover plate through a rocker arm shaft arranged in the middle, and a first shifting block, a second shifting block, a limiting block and a fixed block are arranged on the rocker arm; the self-reset signal switch is arranged on the base corresponding to the fixed block and matched with the fixed block; a first shifting block shaft and a second shifting block shaft are respectively arranged below the first shifting block and the second shifting block, and the shifting rod is arranged at a position corresponding to the first shifting block shaft; the base is provided with a sliding groove, the locking device is arranged below the base and corresponds to the shifting rod, and the shifting rod is connected with an output shaft of the locking device penetrating through the base; the locking device and the self-reset signal switch are connected with the BCM of the vehicle.

Preferably, a return spring is arranged between the lower part of the limiting block and the base.

Preferably, a first characteristic surface, a second characteristic surface and a third characteristic surface are arranged on the fixed block at positions corresponding to the self-reset signal switch.

Preferably, the fastener comprises a motor, a worm wheel and an output gear, an output shaft of the motor is connected with the worm, the worm is meshed with the worm wheel, the worm wheel is coaxially provided with a coaxial gear, the coaxial gear is meshed with the output gear, the output gear is provided with an output gear shaft, and the upper end of the output gear shaft penetrates through the base to be connected with a shifting lever above the output gear shaft.

Preferably, the deflector rod is of a V-shaped structure, and the first deflector rod shaft is arranged in the middle of the V-shaped structure of the deflector rod.

The utility model has the advantages that:

1. the fixed block is provided with a first characteristic surface, a second characteristic surface and a third characteristic surface at the position corresponding to the self-reset signal switch, when the rocker arm acts, the self-reset signal switch is matched with different characteristic surfaces to generate a level change signal and transmit the level change signal to the vehicle BCM, and the vehicle BCM receives the signal and controls the locking device to act, so that the rocker arm is driven to act and reset, and the automobile tail door lock is locked and released. The reset and the action of the whole operating system are completed by the operation of the electric control action part, and compared with the traditional spring reset design, the spring reset device can accurately reset in the forward and reverse directions, and is quicker and safer.

2. Be provided with return spring between stopper below and the base, can also provide supplementary resilience force for the reseing of rocking arm when carrying on spacingly to the rocking arm.

3. The coaxial gear that is provided with of worm wheel, coaxial gear and output gear intermeshing set up coaxial gear and can be with the effectual transmission for output gear of the power that comes from the motor, and then make output gear axle can pass through the driving lever with power and transmit for the rocker, whole action process safety is effective.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the present invention.

Fig. 3 is a schematic diagram of a swing arm structure of the self-resetting mechanism.

Fig. 4 is a schematic view of the structure of the tail gate lock for suction locking.

Fig. 5 is a schematic structural view of the electric unlocking of the tail gate lock.

FIG. 6 is a schematic view of the internal transmission gear of the latch.

Detailed Description

The self-resetting system of the automobile door lock fastener shown in fig. 1-6 comprises a mechanical part of a lock body and an electric control action part, wherein the mechanical part of the lock body comprises a base 1, an upper cover plate 2, a rocker arm 6, a driving lever 10, a pawl 5, a ratchet 15, a pawl spring 3 and a ratchet spring 14, the electric control action part comprises a fastener 9 and a self-resetting signal switch 7, the fastener 9 and the self-resetting signal switch 7 are connected with a vehicle BCM, the electric control action part is controlled to act through the vehicle BCM processing, and the vehicle BCM and the self-resetting signal switch can adopt a device commonly used in the prior art. The base 1 is provided with a U-shaped opening, the pawl 5 and the ratchet wheel 15 are respectively arranged at two sides of the U-shaped opening, the pawl 5 is meshed with the ratchet wheel 15, and the ratchet wheel 15 is provided with a clamping hook for locking and releasing the automobile tail door. The pawl 5 and the ratchet wheel 15 are provided with a pawl shaft mounting hole 16 and a ratchet wheel shaft mounting hole 17, and the pawl 5 and the ratchet wheel 15 are respectively fixed on the base 1 through a pawl shaft 4 and a ratchet wheel shaft 13 which are arranged in the pawl shaft mounting hole 16 and the ratchet wheel shaft mounting hole 17; the pawl spring 3 and the ratchet spring 14 are respectively arranged in the pawl shaft mounting hole 16 and the ratchet shaft mounting hole 17 through the pawl shaft 4 and the ratchet shaft 13 to provide restoring force for restoring the pawl 5 and the ratchet 15.

The self-resetting mechanism comprises a rocker arm 6, a latch 9 and a shift lever 10. The structure of the deflector rod 10 is V-shaped; the rocker arm 6 is fixed on the upper cover plate 2 through a rocker shaft 11 arranged in the middle, and the rocker arm 6 is provided with a first shifting block 610, a second shifting block 620, a limiting block 630 and a fixed block 640. A first dial block shaft 611 and a second dial block shaft 621 are respectively arranged below the first dial block 610 and the second dial block 620; the first dial block shaft 611 is arranged in the middle of the V-shaped structure of the dial 10, and the dial 10 rotates to drive the first dial block shaft 611 to move, so as to drive the rocker arm 6 to clockwise or counterclockwise rotate a certain position around the rocker shaft 11. A return spring 12 is arranged between the lower part of the limit block 630 and the base 1, and the rotation of the rocker arm 6 is limited, and meanwhile, an auxiliary resilience force can be provided for resetting the rocker arm 6. The self-reset signal switch 7 is installed on the base 1 corresponding to the fixing block 640 to be matched with the fixing block 640. The fixed block 640 is provided with a first characteristic surface 641, a second characteristic surface 642 and a third characteristic surface 643 at positions corresponding to the self-reset signal switch 7, and when the rocker arm 6 operates, the self-reset signal switch 7 is matched with the corresponding different characteristic surfaces, so that different level changes can be generated, and a level change signal is transmitted to the vehicle BCM.

The locking device 9 is arranged at the position corresponding to the shift lever 10 below the base 1, the locking device 9 comprises a motor 18, a worm 19, a worm wheel 20 and an output gear 22, and the output shaft of the motor 18 is connected with the worm 19, so that the power of the motor 18 is directly transmitted to the worm 19. The worm 19 and the worm wheel 20 are engaged with each other to perform power transmission. The worm wheel 20 is coaxially provided with a coaxial gear 21, the coaxial gear 21 is meshed with an output gear 22, the output gear 22 is provided with an output gear shaft 23, the upper end of the output gear shaft 23 penetrates through the base to be connected with the deflector rod 10 above, and the deflector rod 10 coaxial with the output gear 22 can realize forward and reverse rotation movement under the transmission of kinetic energy of the motor 18 as the motor 18 can be powered up in forward and reverse directions.

When the electric suction reset is realized, the ratchet wheel 15 is positioned at a half-locking position, the vehicle BCM detects a level change signal from the self-reset signal switch 7 and then powers on the locking device 9, the locking device 9 powers on and then drives the shifting lever 10 to rotate anticlockwise, the shifting lever 10 pushes the rocker arm 6 to rotate through the first shifting block shaft 611, further, the second dial block shaft 621 disposed below the second dial block 620 pushes the ratchet 15 to rotate clockwise (locking direction), when the contact surface between the fixed block 640 and the self-reset signal switch 7 is changed from the second characteristic surface 642 to the third characteristic surface 643, the level of the self-reset signal switch 7 is changed, the vehicle body BCM delays for a certain time after detecting the level change, the ratchet 15 moves to the limit position, and the ratchet 15 and the worm wheel 20 are in the locked-rotor state, the BCM of the vehicle body applies reverse voltage to the locking device 9 to enable the shift lever 10 to drive the rocker arm 6 to reset clockwise, meanwhile, the return spring 12 arranged on the limiting block 630 provides auxiliary resilience force for resetting; in the resetting process of the rocker arm 6, the contact surface between the fixed block 640 and the self-resetting signal switch 7 is changed from a third characteristic surface 643 to a second characteristic surface 642, so that the self-resetting signal switch 7 is subjected to a second level change, the vehicle BCM immediately powers off the locking device 9 after detecting the level change, and finally the rocker arm 6 and the shifting lever 10 return to the initial positions to complete all actions of electric attraction.

When the electric unlocking reset is realized, the door lock is in a full-lock or half-lock state, and after a driver triggers an electric unlocking button, the BCM of the vehicle powers on the locking device 9; after the fastener 9 is powered on, the driving lever 10 is driven to rotate clockwise, the driving lever 10 drives the rocker arm 6 to rotate through the first shifting block shaft 611, and then the second shifting block shaft 621 arranged below the second shifting block 620 pushes the pawl 5 to rotate anticlockwise (opening direction) until the pawl 5 is disengaged from the ratchet wheel 15, and the ratchet wheel 15 rotates anticlockwise under the action of the resilience force of the ratchet wheel spring 14, so that the door lock is opened; when the pawl 5 moves to the limit position, the contact surface between the fixed block 640 and the self-reset signal switch 7 is changed from the second characteristic surface 642 to the first characteristic surface 641, so that the self-reset signal switch 7 is subjected to level change, the vehicle body BCM applies reverse voltage to the fastener 9, and the rocker arm 6 is reset anticlockwise under the auxiliary action of the return spring 12 arranged on the limit block 630; in the resetting process of the rocker arm 6, the contact surface between the fixed block 640 and the self-reset signal switch 7 is changed from the first characteristic surface 641 to the second characteristic surface 642, so that the self-reset signal switch 7 generates a second level change, the vehicle body BCM immediately powers off the locking device 9 after detecting the level change, and finally the rocker arm 6 and the shift lever 10 return to the initial positions to complete all actions of electric opening.

Claims

1. A self-resetting system of a vehicle door lock fastener comprises a lock body mechanical part and an electric control action part, and is characterized in that: the lock body mechanical part comprises a base, an upper cover plate, a rocker arm, a deflector rod, a pawl, a ratchet wheel, a pawl spring and a ratchet wheel spring, and the electric control action part comprises a locking device and a self-reset signal switch; the base is provided with a U-shaped opening, the pawl and the ratchet wheel are respectively arranged at two sides of the U-shaped opening, and the pawl is meshed with the ratchet wheel; the pawl and the ratchet wheel are provided with pawl shaft mounting holes and ratchet wheel shaft mounting holes, the pawl and the ratchet wheel are respectively fixed on the base through a pawl shaft and a ratchet wheel shaft arranged in the pawl shaft mounting holes and the ratchet wheel shaft mounting holes, and the pawl spring and the ratchet wheel spring are arranged in the pawl mounting holes and the ratchet wheel mounting holes through the pawl shaft and the ratchet wheel shaft; the rocker arm is fixed on the upper cover plate through a rocker arm shaft arranged in the middle, and a first shifting block, a second shifting block, a limiting block and a fixed block are arranged on the rocker arm; the self-reset signal switch is arranged on the base corresponding to the fixed block and matched with the fixed block; a first shifting block shaft and a second shifting block shaft are respectively arranged below the first shifting block and the second shifting block, and the shifting rod is arranged at a position corresponding to the first shifting block shaft; the base is provided with a sliding groove, the locking device is arranged below the base and corresponds to the shifting rod, and the shifting rod is connected with an output shaft of the locking device penetrating through the base; the locking device and the self-reset signal switch are connected with the BCM of the vehicle.

2. An automotive door lock latch self-resetting system according to claim 1, wherein: and a return spring is arranged between the lower part of the limiting block and the base.

3. An automotive door lock latch self-resetting system according to claim 2, wherein: and a first characteristic surface, a second characteristic surface and a third characteristic surface are arranged on the fixed block at positions corresponding to the self-reset signal switch.

4. An automotive door lock latch self-resetting system according to claim 3, wherein: the fastener comprises a motor, a worm wheel and an output gear, wherein the output shaft of the motor is connected with the worm, the worm is meshed with the worm wheel, the worm wheel is coaxially provided with a coaxial gear, the coaxial gear is meshed with the output gear, the output gear is provided with an output gear shaft, and the upper end of the output gear shaft penetrates through the base to be connected with a shifting lever above the output gear shaft.

5. An automotive door lock latch self-resetting system according to claim 4, wherein: the shifting lever is of a V-shaped structure, and the first shifting block shaft is arranged in the middle of the V-shaped structure of the shifting lever.