Taking into account the specific st

Taking into account the specific structure and use requirements of the car, the frame of the mechanism can only be fixed on the chassis under the car. In addition, when the lifting mechanism rises to the upper limit position, it should be kept a certain distance from the ground to facilitate driving, and the tail plate should be kept stable during the lifting process to ensure the safety of the cargo.By comparing the advantages and disadvantages of the above mechanisms, it is determined that the parallelogram mechanism is adopted for the translational movement of the tailboard. Considering the closing effect of the tailboard, it is necessary to make appropriate changes. The changed structure is shown in Figure 2-5.