Integrated vehicle door lock for heavy-duty vehicle, light-duty vehicle and commercial vehicle

Abstract

The invention discloses an integrated door lock for a heavy truck, a light truck and a commercial vehicle. The integrated door lock comprises a lock body and a shell, a ratchet shaft and a pawl shaft are arranged on the lock body, and a ratchet and a ratchet return spring are arranged on the ratchet shaft from bottom to top; a pawl, a pawl return spring, an outward opening rocker arm and an outward opening return spring are arranged on the pawl shaft; the ratchet wheel and the pawl are arranged on the lower side of the lock body. A locking mechanism is arranged on the upper side of the lock body. A motor, an electric rocker arm, an inward opening rocker arm, an inward opening arm and a connecting rod are arranged on the shell, one end of the motor is sleeved with a worm, the worm is meshed with the electric rocker arm, and one end of the electric rocker arm is connected with a locking mechanism on the lock body; the locking mechanism is provided with an outward opening linkage arm, a locking shifting arm, a locking linkage arm, an outer locking linkage arm and an outer locking rocker arm; the outer side of the outward-opening linkage arm is sleeved with an outward-opening rocker arm. The transmission mechanism is novel and reasonable in structure and compact in installation, the number of transmission parts is reduced, the transmission efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of automobile door locks, in particular to a front door lock for heavy-duty and light-duty commercial vehicles. Background technique [0002] The existing car door lock is basically a split structure, the circuit part and the mechanical part are separated, and its locking or unlocking is realized through the connection and transmission of the pull rod of the electric actuator and the mechanical part of the lock body. If there is a deviation in the relative installation position or the deformation of the parts, it will cause a series of performance instability such as the feedback signal, which will affect the user's use. And the lock body of the present invention is an integral lock body, and its actuator and the lock body are integrated, and the above problems can be effectively avoided by the transmission of the internal gear and worm. The integrated lock body is the product of the improvement of the spli...

AI Technical Summary

Problems solved by technology

[0002] The existing car door lock is basically a split structure, the circuit part and the mechanical part are separated, and its locking or unlocking is realized through the connection and transmission of the pull rod of the electric actuator and the mechanical part of the lock body. If there is a deviation in the relative installation position or the deformation of the parts, it will cause a series of performance instability such as the feedback signal, which will affect the user's use

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