High-reliability burglary-preventive control mechanism for automobile door lock

Abstract

The invention relates to a high-reliability burglary-preventive control mechanism for an automobile door lock, which comprises a lock shell and further comprises a motor, a worm, a worm gear, a spring, a swing rod, a manual security locking / unlocking pull rod, an unlocking pull rod, a pull rod return spring, a transitional pull rod, a pawl, a pawl return spring and a bolt, which are mounted in the lock shell. The worm is mounted on a motor shaft, a worm gear shaft is perpendicular to the motor shaft, a swing rod shaft is parallel to the worm gear shaft, the worm gear is provided with a groove in a special geometrical shape and capable of pushing a cylindrical boss at the top of the swing rod to push the swing rod to swing, positioning of the swing rod is realized through a slide on the lock shell, and an eccentric spring is mounted on the swing rod. The manual security locking / unlocking pull rod is mounted on the swing rod shaft, a clamping groove of the manual security locking / unlocking pull rod clamps a cylindrical boss at the tail end of the swing rod, the unlocking pull rod is connected with the pawl through the transitional pull rod, and the swing rod can swing to drive the transitional draw rod to rotate around a hinge on the pawl to be separated from the unlocking pull rod, so that the unlocking pull rod cannot unlock, and security is realized. The cam shaped groove on the worm gear is symmetrical, the worm gear only needs to rotate by 180 degrees to complete security locking / unlocking actions, and the high-reliability burglary-preventive control mechanism is high in transmission efficiency.

Description

technical field [0001] The invention relates to an anti-theft control mechanism of an automobile door lock with high reliability, which is a control mechanism for automatically / manually securing or releasing the security after the door lock is locked. Background technique [0002] As cars gradually enter thousands of households, people have put forward higher and higher requirements for car door locks. While getting diversified functions and features, more attention should be paid to its reliability and convenience, and the car door lock anti-theft mechanism is required to have more stable quality, longer life, better safety performance and more convenient operability. In addition to all the functions of locking, unlocking, securing and disarming the door locks on the market, it is also required to realize these functions more and more conveniently. For example, after the doors are fully locked, it is required to realize automatic securing. Functions such as reconciliation ...

AI Technical Summary

Problems solved by technology

[0003] At present, in the automatic car door lock anti-theft mechanism installed in the middle and high-end cars, the control mechanism adopted for the upper / unlock safety mostly adopts gear transmission or rack and pinion transmission, and interference between the gear teeth is easy to occur.

In addition, in order to ensure manual and automatic interference, it is often necessary to add a return spring to the mechanism, which increases the operating resistance of the control mechanism and reduces the reliability of the mechanism.

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