Electric suction lock mechanism provided with three-stage lock positions

Abstract

The invention belongs to the technical field of automobile door locks and particularly relates to an electric suction lock mechanism provided with three-stage lock positions. The electric suction lockmechanism comprises a base plate and a lock hook pawl system which is arranged on the base plate; the lock hook pawl system comprises a lock hook, a lock hook electric part, a pawl, a pawl elastic part and a detecting device; the lock hook and the pawl are both rotationally arranged on the base plate; the lock hook, in the rotating direction, is sequentially provided with three lock positions, including a first-stage lock position, a second-stage lock position and a third-stage lock position; a lock bump matched with the lock positions extends out of the pawl; when the lock hook rotates to realize locking, the lock bump sequentially slides across the third-stage lock position and the second-stage lock position and is locked in the first-stage lock position; the lock hook elastic part andthe pawl elastic part are correspondingly used for providing resilience force for the lock hook and the pawl so that the lock bump can be locked at different lock positions; and the detecting device is used for detecting the locking state of the lock hook and is in signal connection with a central control system in an automobile so as to control an electric execution system to drive the lock hookand the pawl to rotate to implement the locking and unlocking actions.

Description

technical field [0001] The invention belongs to the technical field of automobile door locks, and in particular relates to an electric suction lock mechanism with three-stage lock positions. Background technique [0002] With the development of the automobile industry, passengers' requirements for car comfort and operability are also gradually increasing. At present, the car trunk lock system is an important part of the car body system components. For the car trunk lock system, the passenger's There is also a growing focus on switching on and off for humanity and reliability. [0003] At present, the car trunk lock system on the market is divided into electric suction lock and low matching lock system. The electric suction lock system automatically controls the unlocking and locking function of the tail box lock through the key signal. It does not need manual operation to unlock and lock the tail box lock, but there are only two levels of lock positions. The lock is fixed o...

AI Technical Summary

Problems solved by technology

The electric suction lock system automatically controls the unlocking and locking function of the tail box lock through the key signal. It does not need manual operation to unlock and lock the tail box lock, but there are only two levels of lock positions. The lock is fixed on the body, and the lock of the tail box lock The hook is inserted into the lock buckle to complete the locking function. When the tailgate is closed, the tailgate lock will feedback the signal when it enters the second-level lock position to perform self-absorption operation. When it enters the first-level lock position, it will lock the tailgate. As for the closing process of the car trunk, there are currently only two levels of locks, and the journey from the second level to the first level is relatively short. The tailgate system itself needs to overcome a large sealing force to make the tailgate lock into the second level lock. The self-suction operation starts when the tailgate system is in the second position, and other components of the tailgate system need to overcome a relatively large sealing force; in addition, the tailgate system fails to work due to a failure during the locking process, and the tailgate lock has not yet entered the secondary lock position, and the automatic suction operation fails , the tailgate is easy to pop open, in addition to inconvenient operation, there are also potential safety hazards; and when the car body is violently bumped or hit by a violent impact, the lock hook pops out of the first and second lock positions, and there is no other lock position to lock the lock hook. The car tailgate pops open when the hook is disengaged from the lock, posing a safety hazard

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