A double-pull unlocking mechanism of a door lock with an inner opening and an electric release of a connecting rod

Abstract

This utility model relates to an inward-opening double-pull unlocking mechanism for an electrically released door lock with linkage transmission. It sequentially includes an inward-opening pull rod, an inward-opening double-pull transition rod, a double-pull release transition rod, a double-pull transmission rod, a central control transmission gear, a central control transmission rod, and a central control transmission transition rod. After the inward-opening transition rod is released from its limit position, the rotation of the inward-opening pull rod drives the electrically released rod to rotate via the inward-opening transition rod. The rotation of the electrically released rod pushes the outward-opening release rod, and the rotation of the outward-opening release rod pushes the pawl release rod to release the pawl, thus completing the unlocking process. This utility model achieves the same inward-opening double-pull unlocking as a mechanical lock, aiming to solve the technical defect of existing electrically unlocking systems that cannot mechanically release the central locking system under power failure conditions. By setting a two-stage mechanical transmission structure, the complete action of central unlocking and lock tongue release can be completed by pulling the inward-opening handle twice consecutively without relying on electric drive, ensuring that the vehicle door can still be mechanically unlocked in emergency situations such as collisions and power outages.

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