Jiuhe has obtained another patent related to concrete pump trucks

According to information from the State Intellectual Property Office, Qingdao Jiuhe Heavy Industry Machinery Co., Ltd. has obtained a patent titled "An Automatic Locking Device for Concrete Pump Truck Outriggers and a Concrete Pump Truck."

The patent abstract states that this utility model belongs to the field of concrete pump truck technology and discloses an automatic locking device for concrete pump truck outriggers and a concrete pump truck. The utility model discloses an automatic locking device for the support legs of a concrete pump truck, which is applied to a concrete pump truck. Before the construction of pumping concrete, the retraction drive mechanism drives the locking shaft to retract relative to the lock body, the locking shaft disengages from the moving path of the lock tongue, and the inner leg is extended relative to the outer leg. When the support legs need to be retracted before the pump truck travels, the inner leg is retracted relative to the outer leg, and the external force of the lock tongue on the inner leg squeezes the lock shaft to push the lock shaft to retract relative to the lock body. After the inner leg is retracted relative to the outer leg, under the elastic force of the elastic member, the lock shaft is extended relative to the lock body to block the lock tongue, thereby preventing the inner leg from extending relative to the outer leg. The extension and retraction process of the above-mentioned support legs and the cooperation of the lock shaft and the lock tongue realize the automatic locking and unlocking of the support legs, reduce the safety hazards of the support legs, and further improve the operating efficiency of the concrete pump truck.