Patents by Inventor Jianjia Li

Jianjia Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Elevator balance weight rescue device, an elevator and an elevator balance weight rescue method
    Patent number: 11492232
    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.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: November 8, 2022
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Qing Li, Kai Kang, ShengYu Wang, Hebin Bai, Jianjia Li
  • ELEVATOR BALANCE WEIGHT RESCUE DEVICE, AN ELEVATOR AND AN ELEVATOR BALANCE WEIGHT RESCUE METHOD
    Publication number: 20200055699
    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.
    Type: Application
    Filed: August 20, 2019
    Publication date: February 20, 2020
    Inventors: Qing Li, Kai Kang, ShengYu Wang, Hebin Bai, Jianjia Li