Patents by Inventor Lefeng Liu

Lefeng Liu 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).

  • Patent number: 10637331
    Abstract: A servo (1) includes a power input device (14), a gear assembly (15) drive-connected to the power input device (14), a power output frame (13) that is driven to rotate by the gear assembly (15), an output shaft (131) arranged at the power output frame (13), a magnetic encoding assembly (121) that is arranged at a rotation center axis of the power output frame (13) and used to detect a rotation angle of the output shaft (131) relative to the rotation center axis, and a circuit board (12) connected to the magnetic encoding assembly (121) and the power input device (14). The magnetic encoding assembly (121) does not tend to be affected by environment, to accurately detect the rotation angle of the output shaft (131) relative to the rotation center axis. Meanwhile, the magnetic encoding assembly (121) is simple to structure and light in weight, which facilitates it to be fixed to the servo (1).
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: April 28, 2020
    Assignee: UBTECH ROBOTICS CORP.
    Inventors: Xuchao Du, Xinpu Chen, Meichun Liu, Lefeng Liu, Wenquan Shu, Youjun Xiong
  • Patent number: 10632609
    Abstract: A linkage mechanism includes a chest assembly of a robot; a servo arranged within the chest assembly and comprising an output shaft; a first linkage member including a first end and a second opposite end, the first end being connected to the output shaft; a forearm assembly rotatably connected to the second end of the first linkage member; and a second linkage member. Opposite ends of the second linkage member are rotatably connected to the chest assembly and the forearm assembly.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: April 28, 2020
    Assignee: UBTECH ROBOTICS CORP.
    Inventors: Youjun Xiong, Xiaopeng Wu, Lefeng Liu
  • Patent number: 10518184
    Abstract: An assembly for a robot includes a shoulder, an arm rotatably connected to the shoulder, an armor decorative member connected to the arm and located adjacent to the shoulder, and a connection assembly located between and rotatably connected to the arm and the armor decorative member. Relative rotation between the arm and the connection assembly and between the armor decorative member and the connection assembly enables the arm to continue to rotate after an upper end of the armor decorative member comes into contact with the shoulder.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: December 31, 2019
    Assignee: UBTECH ROBOTICS CORP
    Inventors: Youjun Xiong, Xinpu Chen, Lefeng Liu, Tanfu Xiao
  • Patent number: 10427064
    Abstract: The present disclosure relates to a building block set including at least two building components that can be built together to form at least one track. The building block set includes a base, fixing brackets, and a partition sheet. Each fixing bracket includes a pair of supporting sheets facing each other, a pivot shaft connected between the two supporting sheets, and two hook-shaped portions respectively extending from the supporting sheets along a direction away from the pivot shaft.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: October 1, 2019
    Assignee: UBTECH ROBOTICS CORP.
    Inventors: Youjun Xiong, Dingkai Xing, Yumiao Wu, Lefeng Liu
  • Publication number: 20190168126
    Abstract: An assembly for a robot includes a shoulder, an arm rotatably connected to the shoulder, an armor decorative member connected to the arm and located adjacent to the shoulder, and a connection assembly located between and rotatably connected to the arm and the armor decorative member. Relative rotation between the arm and the connection assembly and between the armor decorative member and the connection assembly enables the arm to continue to rotate after an upper end of the armor decorative member comes into contact with the shoulder.
    Type: Application
    Filed: August 9, 2018
    Publication date: June 6, 2019
    Inventors: Youjun XIONG, Xinpu Chen, Lefeng Liu, Tanfu Xiao
  • Publication number: 20190160656
    Abstract: A linkage mechanism includes a chest assembly of a robot; a servo arranged within the chest assembly and comprising an output shaft; a first linkage member including a first end and a second opposite end, the first end being connected to the output shaft; a forearm assembly rotatably connected to the second end of the first linkage member, and a second linkage member. Opposite ends of the second linkage member are rotatably connected to the chest assembly and the forearm assembly.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 30, 2019
    Inventors: Youjun Xiong, Xiaopeng Wu, Lefeng Liu
  • Patent number: 10029187
    Abstract: A toy assembling apparatus is disclosed. The toy assembling apparatus includes at least one connector, and each connector having at least one of a first connecting portion and a second connecting portion. The first connecting portion includes a connection plate and a connection pillar disposed on the connection plate. The second connecting portion includes a left side board, a right side board, a back side board, a bottom board, and a top board, which jointly form a containing slot for inserting the first connecting portion. The containing slot includes a plate slot for containing the connection plate and a pillar slot for containing the connection pillar. Limit grooves or limit protrudes are formed on the connection pillar. The pillar slot has protrudes or grooves formed thereon correspondingly. The limit grooves match the limit protrudes, such that the first connecting portion matches the second connecting portion of another connector tightly.
    Type: Grant
    Filed: December 25, 2016
    Date of Patent: July 24, 2018
    Assignee: UBTECH ROBOTICS CORP.
    Inventors: Lefeng Liu, Yumiao Wu, Dingkai Xing, Xiongyuan Fang, Xinpu Chen
  • Publication number: 20180169534
    Abstract: The present disclosure relates to a building block set including at least two building components that can be built together to form at least one track. The building block set includes a base, fixing brackets, and a partition sheet. Each fixing bracket includes a pair of supporting sheets facing each other, a pivot shaft connected between the two supporting sheets, and two hook-shaped portions respectively extending from the supporting sheets along a direction away from the pivot shaft.
    Type: Application
    Filed: March 16, 2017
    Publication date: June 21, 2018
    Inventors: Youjun Xiong, Dingkai Xing, Yumiao Wu, Lefeng Liu
  • Patent number: 9931577
    Abstract: The present invention discloses a servo of an entertainment robot that includes a servo main body and a servo plate. The servo main body includes a casing and an output shaft. The casing is a hexahedron. The servo plate is fixed to the output shaft of the servo main body. The servo plate includes a square drive plate. At least one surface of the servo main body includes a T slot having an opening at one end. The size of the T slot matches the size of the drive plate of the servo plate. Tools are not needed for assembling/disassembling during the assembling of entertainment robots, thereby reducing the complexity during assembling, lowering the assembly difficulty, simplifying the assembling process, increasing the joy of DIY, and providing more space for the users to bring into play their imaginations.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: April 3, 2018
    Assignee: UBTECH ROBOTICS CORP.
    Inventors: Yumiao Wu, Youjun Xiong, Lefeng Liu
  • Patent number: 9889388
    Abstract: A toy building block robot and a main control box thereof are disclosed. The main control box comprises a toy building-block robot main control housing, a toy building-block robot main control board, and a battery. The toy building-block robot main control board is installed in the toy building-block robot main control housing. The battery is connected to the toy building-block robot main control board, so as to supply power to the toy building-block robot main control board. A plurality of connection mechanisms are disposed on the toy building-block robot main control housing for engaging the toy building-block robot main control housing with other components of the toy building block robot. In the present disclosure, whether the assembly of the components in the main control box, or the engagement between the main control box and other components of the toy building block robot, can both be realized through a connection mechanism.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: February 13, 2018
    Assignee: UBTECH ROBOTICS CORP.
    Inventors: Lefeng Liu, Yumiao Wu, Dingkai Xing
  • Patent number: 9815192
    Abstract: A servo and a robot with the servo are provided. The servo comprises a power input apparatus with a first output shaft, a deceleration apparatus, and a power output mechanism. The deceleration apparatus comprises a first-stage deceleration mechanism and a second-stage deceleration mechanism. The power output mechanism comprises a second output shaft and an output bearing fixedly installed on the second output shaft, wherein the second output shaft is an external spline output shaft. Through the external spline output shaft and the output bearing disposed on the power output mechanism, the servo could directly connect with an exterior component through the external spline output shaft, and the strength is improved. As a result, the friction between the servo and the exterior component is reduced, and the lifetime is therefore increased.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: November 14, 2017
    Assignee: UBTECH ROBOTICS CORP.
    Inventors: Xuchao Du, Lefeng Liu, Hongyu Ding, Wenquan Shu, Youjun Xiong
  • Publication number: 20170274295
    Abstract: A toy assembling apparatus is disclosed. The toy assembling apparatus includes at least one connector, and each connector having at least one of a first connecting portion and a second connecting portion. The first connecting portion includes a connection plate and a connection pillar disposed on the connection plate. The second connecting portion includes a left side board, a right side board, a back side board, a bottom board, and a top board, which jointly form a containing slot for inserting the first connecting portion. The containing slot includes a plate slot for containing the connection plate and a pillar slot for containing the connection pillar. Limit grooves or limit protrudes are formed on the connection pillar. The pillar slot has protrudes or grooves formed thereon correspondingly. The limit grooves match the limit protrudes, such that the first connecting portion matches the second connecting portion of another connector tightly.
    Type: Application
    Filed: December 25, 2016
    Publication date: September 28, 2017
    Inventors: LEFENG LIU, YUMIAO WU, DINGKAI XING, XIONGYUAN FANG, XINPU CHEN
  • Publication number: 20170274294
    Abstract: A toy building block robot and a main control box thereof are disclosed. The main control box comprises a toy building-block robot main control housing, a toy building-block robot main control board, and a battery. The toy building-block robot main control board is installed in the toy building-block robot main control housing. The battery is connected to the toy building-block robot main control board, so as to supply power to the toy building-block robot main control board. A plurality of connection mechanisms are disposed on the toy building-block robot main control housing for engaging the toy building-block robot main control housing with other components of the toy building block robot. In the present disclosure, whether the assembly of the components in the main control box, or the engagement between the main control box and other components of the toy building block robot, can both be realized through a connection mechanism.
    Type: Application
    Filed: December 30, 2016
    Publication date: September 28, 2017
    Inventors: LEFENG LIU, YUMIAO WU, DINGKAI XING
  • Patent number: D797204
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: September 12, 2017
    Assignee: UBTECH ROBOTICS, CORP.
    Inventors: Lefeng Liu, Yumiao Wu, Dingkai Xing, Xiongyuan Fang, Xinpu Chen
  • Patent number: D800228
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: October 17, 2017
    Assignee: UBTECH ROBOTICS CORP.
    Inventors: Lefeng Liu, Yumiao Wu, Dingkai Xing, Xiongyuan Fang, Xinpu Chen
  • Patent number: D803950
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: November 28, 2017
    Assignee: UBTECH ROBOTICS CORP.
    Inventors: Lefeng Liu, Yumiao Wu, Dingkai Xing, Xiongyuan Fang, Xinpu Chen
  • Patent number: D809071
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: January 30, 2018
    Assignee: UBTECH ROBOTICS CORP.
    Inventors: Lefeng Liu, Yumiao Wu, Dingkai Xing, Xiongyuan Fang, Xinpu Chen
  • Patent number: D810208
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: February 13, 2018
    Assignee: UBTECH ROBOTICS CORP.
    Inventors: Lefeng Liu, Yumiao Wu, Dingkai Xing, Xiongyuan Fang, Xinpu Chen
  • Patent number: D810837
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: February 20, 2018
    Assignee: UBTECH ROBOTICS CORP.
    Inventors: Lefeng Liu, Yumiao Wu, Dingkai Xing, Xiongyuan Fang, Xinpu Chen
  • Patent number: D892230
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: August 4, 2020
    Assignee: UBTECH ROBOTICS CORP
    Inventors: Yumiao Wu, Lefeng Liu, Qiujie Lin, Xinshui Huang, Youjun Xiong