Auxiliary door locking device for vehicle door

Abstract

The invention provides an auxiliary door locking device for a vehicle door. Auxiliary locking of the vehicle door is achieved by installing a set of connection rod locking mechanism which is composed of a lower stop block assembly, a first pull rod, a middle shaft assembly, a second pull rod, an upper back side stop block assembly, a third pull rod and an upper front side stop block assembly on a vehicle door assembly, the situation that three connection lock points are additionally arranged in the positions between the vehicle door and a side wall door frame during locking is achieved, and the three connection lock points, an existing vehicle door hinge and a common door lock jointly act to further enhance the locking strength of the vehicle door so that the vehicle door can be effectively prevented from being deformed when a driving cab is heavily impacted; and thus, the integral rigidity of the vehicle door is greatly improved, and the driving safety is ensured.

Description

technical field [0001] The invention relates to the technical field of automobile doors, in particular to door lock technology, and more specifically to an auxiliary door lock device for a car door. Background technique [0002] In the prior art, the locking of most vehicles is based on connecting hinges and ordinary door locks. Although it can meet the requirements of ordinary locking, it is difficult for some vehicles to be used under special conditions. To meet the needs of use, for example, under the working conditions such as the car door is often subjected to large shock waves, the ordinary car door lock will frequently open involuntarily, causing damage to the car door and the door lock structure, and there is no guarantee in this case. At the same time, when the door is subjected to a large impact, if the locking strength of the door lock is poor, it will not only lead to the involuntary opening of the door, but also pose a threat to the safety of the occupants in th...

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Problems solved by technology

[0002] In the prior art, the locking of most vehicles is based on connecting hinges and ordinary door locks. Although it can meet the requirements of ordinary locking, it is difficult for some vehicles to be used under special conditions. To meet the needs of use, for example, under the working conditions such as the car door is often subjected to large shock waves, the ordinary car door lock will frequently open involuntarily, causing damage to the car door and the door lock structure, and there is no guarantee in this case. At the same time, when the door is subjected to a large impact, if the locking strength of the door lock is poor, it will not only lead to the involuntary opening of the door, but also pose a threat to the safety of the occupants in the cab. The door lock structure commonly used in vehicles in the prior art has defects such as poor locking strength and inability to withstand large impacts, which in turn makes the anti-collision rigidity of the entire car door very limited, which has gradually become a problem that needs to be considered in vehicle design safety

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