In the modern logistics and automotive industries, the relentless pursuit of efficiency has driven significant innovation in vehicle design, with a particular focus on lightweight engineering.

During long-term use, frequent opening and closing of the vehicle tailgate subject the hinge and support structure to repeated loads and impacts, easily leading to noise, increased gaps, and loosening.

In applications such as urban delivery, cold chain transportation, and large cargo transport, aluminum alloy tailgates serve as crucial load-bearing and protective components, directly impacting the overall vehicle's efficiency and safety.

The surface treatment process of the carriage frame is also crucial. A smooth surface can reduce friction of the sealing strips, extend their service life, and avoid poor sealing caused by excessive surface roughness.

In response to the characteristics of heavy-duty lifting tailgates, which have large mass and high inertia, the buffer device often adopts a multi-stage shock absorption design.

The connection between the tailgate and the cargo compartment usually adopts a multi-point fixing design, which uses multiple hinges or locks to disperse vibration energy and avoid excessive stress on a single point.