Patents by Inventor Chunhu Wang

Chunhu Wang 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: 10329844
    Abstract: An anchor rod multi-section reaming machine tool and an application thereof are provided. The machine tool is used cooperatively with an anchor rod drill rig. A hydraulic cylinder is fixed at a lower end of a drill rod of the anchor rod drill rig. A lower end of the piston rod is fixed at an upper portion of an arch pressing device fixing disc. An arch pressing device comprises a pair of upper arch arms and a pair of lower arch arms, upper ends of the upper arch arms are rotatably connected with a central position of a lower portion of the arch pressing device fixing disc, lower ends of the upper arch arms are rotatably connected with upper ends of the lower arch arms, and lower ends of the lower arch arms are rotatably connected with a central position of an upper portion of a base plate.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: June 25, 2019
    Assignee: HONGYUAN ZHONGKE FOUNDATION ENGINEERING (BEIJING) CO., LTD.
    Inventors: Chunlong Wang, Chunhu Wang
  • Publication number: 20170247950
    Abstract: The invention discloses an anchor rod multi-section reaming machine tool and an application thereof. The machine tool is used cooperatively with an anchor rod drill rig (M), wherein a hydraulic cylinder (41) is connected with a hydraulic station (1) through a pipe, and the hydraulic cylinder (41) is fixed at a lower end of a drill rod (M1) of the anchor rod drill rig (M) and connected with the hydraulic station (1). A piston (412) is arranged inside a cylinder body (411) of the hydraulic cylinder (41) and axially moves relative to the cylinder body (411) such that the cylinder body (411) is divided into a hydraulic cylinder upper chamber (4111) and a hydraulic cylinder lower chamber (4112) which have variable volume.
    Type: Application
    Filed: December 3, 2015
    Publication date: August 31, 2017
    Inventors: Chunlong Wang, Chunhu Wang