Patents by Inventor Huazhong Sun

Huazhong Sun 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: 11865660
    Abstract: The invention discloses a woodwork milling fence device with a precision fine-tuning function, comprising two guide rods, an electric router fence body, fence board, fence positioning fine-tuning mechanism, fence board fine-tuning mechanism, two fence locking handle devices and an eccentric dust outlet; the guide rods are respectively provided with T-shaped bosses, the T-shaped bosses cooperate with first square nuts and first screws to position the two guide rods in parallel on the electric router fence body, and the fence positioning fine-tuning mechanism is arranged between the two guide rods, and adopts a first dovetail guiding structure, to push the electric router fence body forward or backward; the fence board fine-tuning mechanism is fixed on an aluminum fence, to adjust forward or backward movements of the fence board by the second dovetail guiding structure.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: January 9, 2024
    Assignee: Harvey woodworking Technology (Nanjing) Co., Ltd.
    Inventors: Xiaogang Qin, Qinghai Xu, Huazhong Sun
  • Publication number: 20230321774
    Abstract: A device for pressing materials guided by rollers for a carpentry cutting includes a device body, two base body fixing blocks, an adjustment mechanism and two pressing mechanisms. The device body includes a fist base body and a second base body. The two base body fixing blocks are arranged to press both sides of the base body, respectively. The adjustment mechanism includes a pushing mechanism configured to move the two pressing mechanisms along a direction from the first base body toward the second base body, two compressing mechanisms configured to compress a play between the first base body and the pressing mechanisms and a reset mechanism. Each of the pressing mechanisms includes a roller fixing block connected with the sliding block, and two rollers with a same rolling direction, the two rollers are respectively mounted on both sides of the roller fixing block.
    Type: Application
    Filed: November 3, 2022
    Publication date: October 12, 2023
    Inventors: Jian DING, Xiaogang QIN, Qinghai XU, Huazhong SUN
  • Publication number: 20220355428
    Abstract: The invention discloses a woodwork milling fence device with a precision fine-tuning function, comprising two guide rods, an electric router fence body, fence board, fence positioning fine-tuning mechanism, fence board fine-tuning mechanism, two fence locking handle devices and an eccentric dust outlet; the guide rods are respectively provided with T-shaped bosses, the T-shaped bosses cooperate with first square nuts and first screws to position the two guide rods in parallel on the electric router fence body, and the fence positioning fine-tuning mechanism is arranged between the two guide rods, and adopts a first dovetail guiding structure, to push the electric router fence body forward or backward; the fence board fine-tuning mechanism is fixed on an aluminum fence, to adjust forward or backward movements of the fence board by the second dovetail guiding structure.
    Type: Application
    Filed: June 23, 2021
    Publication date: November 10, 2022
    Inventors: Xiaogang Qin, Qinghai Xu, Huazhong Sun
  • Patent number: 10159990
    Abstract: The dust separation apparatus includes a dust intake unit including a blower, an inertial separation unit, a centrifugal separation unit, and a filtering separation unit. The dust intake unit, the inertial separation unit, the centrifugal separation unit, and the filtering separation unit are sequentially connected in series and together form a horizontal structure. The inertial separation unit and the centrifugal separation unit are connected in a horizontal-axis direction to form an inertial and centrifugal separation unit. A dust collection box is provided below and connected to the inertial and centrifugal separation unit. The filtering separation unit includes a dust collection barrel. The intelligent control system includes the dust separation apparatus and an intelligent control unit.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: December 25, 2018
    Assignee: HARVEY INDUSTRIES CO., LTD.
    Inventors: Yi Hua, Qinghai Xu, Xinning Li, Xiaogang Qin, Huizi Pan, Huazhong Sun
  • Publication number: 20170333918
    Abstract: The dust separation apparatus includes a dust intake unit including a blower, an inertial separation unit, a centrifugal separation unit, and a filtering separation unit. The dust intake unit, the inertial separation unit, the centrifugal separation unit, and the filtering separation unit are sequentially connected in series and together form a horizontal structure. The inertial separation unit and the centrifugal separation unit are connected in a horizontal-axis direction to form an inertial and centrifugal separation unit. A dust collection box is provided below and connected to the inertial and centrifugal separation unit. The filtering separation unit includes a dust collection barrel. The intelligent control system includes the dust separation apparatus and an intelligent control unit.
    Type: Application
    Filed: August 23, 2016
    Publication date: November 23, 2017
    Applicant: HARVEY INDUSTRIES CO., LTD.
    Inventors: Yi HUA, Qinghai XU, Xinning LI, Xiaogang QIN, Huizi PAN, Huazhong SUN
  • Patent number: D792568
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: July 18, 2017
    Assignee: NANJING HARVEY INDUSTRIES CO., LTD.
    Inventors: Yi Hua, Qinghai Xu, Xinning Li, Xiaogang Qin, Huizi Pan, Huazhong Sun