Patent ID: 11919748
Assignee: XUZHOU COAL MINE SAFETY EQUIPMENT MANUFACTURE CO., LTD.
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 1:
2. The hoist for the transferred materials in the underground auxiliary transportation system according to claim 1, wherein each of the end beams is a foldable structure, including:
one fixed end beam unit, and two foldable end beam units connected at both ends of the fixed end beam unit, wherein the two foldable end beam units are respectively a first foldable end beam unit and a second foldable end beam unit, the two foldable end beam units are rotatable relative to the fixed end beam unit, and the end beam further includes:
a first folding arm, a second folding arm, connecting seats, hinging seats and a first hydraulic cylinder, wherein,
the first folding arm and the second folding arm are hinged with each other at adjacent ends, and another end of the first folding arm is fixedly connected to a respective one of the connecting seats, the respective one of the connecting seats is mounted on the first foldable end beam unit, and is slidable on the first foldable end beam unit;
another end of the second folding arm is fixedly connected to a respective one of hinging seats, and the respective one of the hinging seats is mounted on the second foldable end beam unit and is slidable on the second foldable end beam unit; and
the first hydraulic cylinder is connected between the first folding arm and the second folding arm, a cylinder barrel of the first hydraulic cylinder is hinged with the first folding arm through a hinged joint, and an outer end of a piston rod of the first hydraulic cylinder is hinged with the second folding arm.