Patents by Inventor Hanqing Zheng

Hanqing Zheng 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).

  • Publication number: 20230339081
    Abstract: A power tool includes a main housing, a drive mechanism, a working head, and a connection assembly. The connection assembly includes an input portion connected to the drive mechanism and an output portion connected to an output shaft. The connection assembly rotates the working head about a first axis relative to the main housing. The power tool includes a first transmission path. When the working head rotates about the first axis relative to the main housing, components in the first transmission path are allowed to deform or to be displaced along a direction of the first transmission path.
    Type: Application
    Filed: July 6, 2023
    Publication date: October 26, 2023
    Inventors: Hanqing Zheng, Xiangqing Fu, Changwei Zuo, Shubin Tong, Xu Wang, Binbin Chen
  • Publication number: 20230330719
    Abstract: A pipe cleaning machine includes: a handle for holding; a drum connected to the handle and rotatable with respect to the handle; a cable disposed in the drum; an electric motor driving the cable to rotate and including an electric motor shaft extending along a first axis; and a cable feeding assembly for feeding the cable. The drum includes an exposed portion, where the ratio of the surface area of the exposed portion to the total surface area of the drum is greater than or equal to 40% and less than or equal to 100%.
    Type: Application
    Filed: June 16, 2023
    Publication date: October 19, 2023
    Inventors: Hanqing Zheng, Xiangqing Fu, Liang Chen
  • Publication number: 20230264338
    Abstract: A power tool includes a main housing in which a drive mechanism is disposed and a working head connected to an end of the main housing and rotating relative to the main housing about a first axis. The working head includes an output shaft and the output shaft is driven by the drive mechanism to rotate about a second axis. The main housing is provided with a window portion and the window portion is configured to display an internal structure of the power tool.
    Type: Application
    Filed: April 13, 2023
    Publication date: August 24, 2023
    Inventors: Hanqing Zheng, Xiangqing Fu
  • Publication number: 20230172111
    Abstract: A foldable pole assembly includes a connecting pole assembly and a joint mechanism. The connecting pole assembly includes a first connecting pole and a second connecting pole. The joint mechanism connects the first connecting pole to the second connecting pole and includes a locked state and an unlocked state. The joint mechanism includes an operating member including a first state and a second state. When the operating member is in the first state, the joint mechanism is in the locked state, and when the operating member is in the second state, the joint mechanism is in the unlocked state. The operating member is switched between the first state and the second state through a single motion.
    Type: Application
    Filed: November 23, 2022
    Publication date: June 8, 2023
    Inventors: Hanqing Zheng, Xiangqing Fu
  • Publication number: 20230128074
    Abstract: A power tool includes an output assembly and a battery pack. The output assembly is disposed at an end portion of a first handle, the output assembly includes at least two output units spaced apart and used for connecting working accessories, and the output assembly is rotatable about a shift axis to shift an output unit among the at least two output units to a working position or a non-working position. The battery pack is disposed at a bottom of a body, the battery pack includes a standing surface through which the power tool is capable of standing, and when the power tool stands, a projection of a center of gravity of the power tool on the standing surface is in the standing surface.
    Type: Application
    Filed: December 20, 2022
    Publication date: April 27, 2023
    Inventors: Hanqing Zheng, Xiangqing Fu, Liang Chen, Chunrui Li
  • Publication number: 20230019359
    Abstract: A torque output tool includes an output shaft, a motor, a transmission assembly, and a gearbox. The gearbox is used for accommodating the transmission assembly. The transmission assembly includes a first planetary gearset and a second planetary gearset. The transmission assembly is capable of being switched to a first state and a second state such that the transmission assembly outputs a first gear ratio or a second gear ratio separately, where the first gear ratio is greater than the second gear ratio. When the transmission assembly outputs the first gear ratio, a rotational speed of the output shaft is greater than or equal to 300 r/min and less than or equal to 800 r/min. A length of the gearbox in an axial direction is greater than or equal to 38 mm and less than or equal to 46 mm.
    Type: Application
    Filed: September 30, 2022
    Publication date: January 19, 2023
    Inventors: Chunrui Li, Shubin Tong, Hejun Wang, Hanqing Zheng
  • Publication number: 20230007837
    Abstract: An electric drill and an electric tool, including: a housing provided with an air inlet and an air outlet; a motor received in the housing, wherein the motor at least comprises a motor shaft; a drill bit, acting on a workpiece; the motor shaft is connected to the drill bit; a gearbox arranged in the housing for accommodating the transmission assembly; a fan supported by the motor shaft; wherein the gearbox is formed with a passage, and at least a part of a flow path of an airflow that enters the housing from the air inlet and flows out of the housing from the air outlet is provided on the passage.
    Type: Application
    Filed: June 22, 2022
    Publication date: January 12, 2023
    Inventors: Hanqing Zheng, Chunrui Li, Rui Zhan