Double pawl car door lock mechanism

Abstract

The invention discloses a double-pawl automobile door clock mechanism which comprises a base plate, a clamping plate, a first pawl, a second pawl, a first pawl reset spring and a second pawl reset spring. The clamping plate, the first pawl and the second pawl are installed on the base plate and can rotate around a first axis, a second axis and a third axis respectively. The clamping plate is provided with a U-shaped clamping groove capable of being clamped to an automobile body locking pin. The clamping plate is provided with a circular arc face located on the side of the U-shaped clamping groove. The circular arc face is provided with a semi-locking meshed position and a full-locking meshed position. The first pawl is provided with a first extending arm, a second extending arm and a third extending arm which are extended in an integrated mode. The second pawl is provided with a meshed arm capable of abutting against and being separated from the circular arc face and capable of being positioned to the semi-locking meshed position. The first extending arm abuts against the circular arc face and can be positioned on the full-locking meshed position. The first pawl reset spring and the second pawl reset spring are in elastic abutting connection with the first pawl and the second pawl respectively. The second pawl is provided with a protrusion. The second extending arm can be movably located on the two sides of the protrusion. The door lock release force is reduced, and door opening and closing sound is lowered.

Description

technical field [0001] The invention relates to a double-pawl automobile door lock mechanism, in particular to a double-pawl automobile door lock mechanism capable of reducing release force and improving the sound quality of door opening and closing. Background technique [0002] The car door lock mainly includes a lock body, a lock catch and a driving mechanism. The lock body is the main part of the door lock and is generally installed on the car door. The lock buckle (sometimes also called a lock ring or a lock pin) is a part that cooperates with the lock body, and is usually installed on the vehicle body to correspond to the lock body. The driving mechanism refers to the transmission components of actions and forces such as key unlocking and handle unlocking. [0003] At present, most of the lock bodies adopt a counter force two-part structure, and two states of semi-locking and full-locking can be easily realized through a clamping plate and a pawl. [0004] However, ...

AI Technical Summary

Problems solved by technology

When releasing, it is necessary to overcome the frictional resistance of the pawl and the clamping plate on the meshing surface. The frictional resistance increases with the increase of the door sealing force, and the entry of dust during use will also cause the friction coefficient to increase and increase the release. force

Images