Jib DEVICE AND Concrete-pumping vehicles containing Jib DEVICE

摘要

Jib 1. Concrete-pumping device for a vehicle comprising a foldable boom comprising a first boom pivotably connected to the rotary platform Concrete-pumping vehicle, and a second boom pivotally connected to the first boom, the first boom in the folded state extends in the direction of the vehicle cab Concrete-pumping, a second boom disposed above the first streloy.2. Jib device according to Claim. 1, wherein the first boom further extends to a position above the achievement kabinoy.3. Jib device according to Claim. 1, wherein the second boom extends from the tail end of the first boom to the rear of the vehicle or a Concrete-pumping further extends beyond the rear chasti.4. Jib device according to any one of claims. 1-3, wherein the folding boom further comprises the third boom pivotably connected to the tail end of the second boom, the folded third boom is located on the side of the turntable, which is closer to the rear of Concrete-pumping vehicle and situated under the second streloy.5 . Jib device according to claim. 4 in which collapsible boom further comprises a fourth boom pivotally connected to the tail of the third boom end, the fourth boom in the folded state is disposed between the second and third booms and the tail end of the fourth arrow is placed on the second boom to be displaceable. 6. Jib device according to claim. 5, wherein the folding boom further comprises a fifth boom pivotally connected to the tail end of the fourth boom, the boom in the folded fifth STATUS