Cross country vehicle and vehicle door hinge assembly thereof

Abstract

The invention discloses a cross country vehicle and a vehicle door hinge assembly thereof. The vehicle door hinge assembly thereof comprises a first hinge plate fixedly mounted on the vehicle body of the cross country vehicle, a second hinge plate fixedly mounted on the vehicle door of the cross country vehicle and a rotary connecting part, and the second hinge plate is rotatably mounted on the first hinge plate through the rotary connecting part; the rotary connecting part comprises a rotary shaft sequentially penetrating through a first through hole and a second through hole, and a bolt detachably mounted at the first end of the rotary shaft, the rotary shaft is fixed to the first hinge plate through the bolt, and the second hinge plate is rotatably connected with the rotary shaft through the second through hole. In use, when a lock of the vehicle door failure occurs and the vehicle door cannot be opened, the vehicle door is needed to be dismantled in emergency, the bolt detachably connected with the rotary shaft is firstly dismantled, then the rotary shaft is knocked out, thus the first hinge plate is separated from the second hinge plate, the vehicle door can be dismantled from the vehicle body, and quick dismantling of the vehicle door is achieved.

Description

technical field [0001] The invention belongs to the technical field of special vehicles, in particular to an off-road vehicle and a door hinge assembly thereof. Background technique [0002] In the vehicle, the door needs to be installed on the car body through the door hinge to ensure the opening and closing of the door. As the main component of the car door, the door hinge has an important impact on the safety, reliability and usability of the door. The design of the car door hinge depends on the weight of the car door, the use environment and the layout form. According to the hinge layout form, there are exposed hinges and concealed hinges in the prior art. For passenger cars and commercial vehicles, in order to ensure the shape and appearance of the body, most of them use hidden hinges; for special vehicles, in order to improve the maintainability and reliability of hinges, most of them use exposed hinges. However, during the use of special off-road vehicles, due to the...

AI Technical Summary

Problems solved by technology

However, during the use of special off-road vehicles, due to the harsh working conditions, the locks are prone to damage, and the existing hinge assembly is difficult to disassemble, and the quick disassembly of the door cannot be realized.

Moreover, during the use of special off-road vehicles, the door needs to be able to withstand the shock wave. The shock wave acting on the door has a very short time and a great force, which has high requirements for the strength and toughness of the door hinge. The existing ordinary hinge The structure cannot meet its strength requirements and is easily damaged; some special off-road vehicles need to be used in an environment of -40°C, which requires high low-temperature performance of the door hinges, while the toughness of ordinary hinges decreases in low-temperature environments, and fatigue fractures are prone to occur In addition, off-road vehicles have high requirements for the bearing capacity of the door hinges, which need to bear a large force. In order to improve the bearing capacity, the volume and thickness of the hinges need to be increased, which leads to the larger volume and heavier weight of the door hinges. Heavy, not only affects the appearance quality of the vehicle, but also is not conducive to the lightweight design of the vehicle

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