公开(公告)号：US20200055699A1

公开(公告)日：2020-02-20

申请号：US16545346

申请日：2019-08-20

Applicant: Otis Elevator Company

Inventor： Qing Li ,  Kai Kang ,  ShengYu Wang ,  Hebin Bai ,  Jianjia Li

IPC: B66B5/02

Abstract: An elevator balanced-load rescue device, an elevator, and an elevator balanced-load rescue method are provided by the present disclosure. The elevator balanced-load rescue device includes: a clamping wheel set including a driving wheel and a driven wheel that cooperate with each other; wherein the clamping wheel set has a clamping position and a releasing position; in the clamping position, the driving wheel and the driven wheel move toward each other to clamp a traction belt connected between an elevator car and an elevator counterweight; and in the releasing position, the driving wheel and the driven wheel move opposite to each other to release the traction belt; a transmission shaft which has a first end connected to the driving wheel of the clamping wheel set, and which transmits a torque to the driving wheel; and an energy storage device associated with the transmission shaft.

公开(公告)号：US11492232B2

公开(公告)日：2022-11-08

申请号：US16545346

申请日：2019-08-20

Applicant: Otis Elevator Company

Inventor： Qing Li ,  Kai Kang ,  ShengYu Wang ,  Hebin Bai ,  Jianjia Li

IPC: B66B5/02

Abstract: An elevator balanced-load rescue device, an elevator, and an elevator balanced-load rescue method are provided by the present disclosure. The elevator balanced-load rescue device includes: a clamping wheel set including a driving wheel and a driven wheel that cooperate with each other; wherein the clamping wheel set has a clamping position and a releasing position; in the clamping position, the driving wheel and the driven wheel move toward each other to clamp a traction belt connected between an elevator car and an elevator counterweight; and in the releasing position, the driving wheel and the driven wheel move opposite to each other to release the traction belt; a transmission shaft which has a first end connected to the driving wheel of the clamping wheel set, and which transmits a torque to the driving wheel; and an energy storage device associated with the transmission shaft.