Patent ID: 7845286

Claim:
A draft vehicle system comprising: two draft vehicles disposed opposite to each other, each of the two draft vehicles comprising: a draft vehicle body; and a carrying device disposed on a side of the draft vehicle body facing a region between the two draft vehicles for lifting and lowering an object and supporting the object, during carrying the object by the draft vehicle, wherein the carrying device comprises: a base connected with the draft vehicle body to be movable upwards and downwards; and a front carrying arm assembly and a rear carrying arm assembly respectively coupled with the base to support the object during lifting and lowering the object and carrying the object, wherein the rear carrying arm assembly comprises: a base portion coupled with the base to be translated substantially horizontally with respect to the base; a rear carrying arm rotatably connected with the base portion of the rear carrying arm assembly, a rotary arm fixed to the rear carrying arm to be rotatable about an axis together with the rear carrying arm; a cylinder has a piston rod and a cylinder respectively hingedly connected to the rotary arm of the rear carrying arm assembly and the base of the rear carrying arm assembly to drive the rotary arm of the rear carrying arm assembly to rotate so that the rotary arm of the rear carrying arm assembly drives the rear arm to rotate between a spread position and a retracted position.