Heavy truck HOWO standard cab tilting mechanism comprises a front bracket assembly 1, limit 2 and 3 locking assembly of three parts. Front bracket assembly, stopper and locking assembly is affixed to the cab stringers, Jinan Delong cab, front bracket assembly is to achieve a torsion bar twisting torque and weight cab moment into each other's structure, locking structure is equivalent to switch cab tilting mechanism; stopper is completely flipped newcomer supporting role in the cab prevent the cab flipped down. When heavy truck HOWO standard cab always become locked state, that is when the cab tilting angle of 0 °. In this case, the maximum torsion angle of the torsion bar, the torsion bar of the maximum torque, the maximum torque of the cab's weight, but the torsion bar of the torque is greater than the weight of the cab moment; when releasing the locked state, since the torsion bar is greater than the driving torque Room heavy torque, the torque effect of the torsion bar in the cab automatically flips forward to an angle later still, Gansu Delong Cab, shown in Figure 2-2, this time the cab flip angle α is small, Delong Cab parts, torsion torque moment equal weight with cab; when the person applying smaller upward thrust locking mechanism position in the cab, the cab started to roll forward, slowly release the energy of the torsion bar, Delong cab, the cab of heavy torque decreasing, flip the speed gradually slowed down; when the rollover to the maximum position, which is slightly more than the center of gravity of the cab central vertical flip, then re-torque is almost zero, then Gently push the cab, the cab rely stopper fixed residual torque of the torsion bar so that the stopper is in tension. Gansu Delong cab, Delong cab, Jinan Yiu Cheung (high-quality businesses) are provided by Jinan Yiu Cheung Trading Company. Jinan Yiu Cheung Trading Company (www.jinanyaoxiang.com) is specialized in "auto parts, lubricants, rubber products, hardware" of the enterprise, the company adhering to the "honesty, hard service" concept, to provide you with the most quality products and services. Welcome to inquire! Contact: Cui round.