公开(公告)号：US10233722B2

公开(公告)日：2019-03-19

申请号：US15752585

申请日：2016-10-31

Applicant: JIANGSU UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Wenxian Tang ,  Jian Zhang ,  Shijie Su ,  Hua Li ,  Yuan Li ,  Yun Chen ,  Shuyan Wang

IPC: E21B41/04 ,  E21B34/04 ,  E21B43/013 ,  E21B33/035 ,  E21B33/043 ,  E21B34/16

Abstract: A moving-rotating linear covering tool, comprising a port, a primary oil cylinder, a piston rod, a rear end cover, a base sleeved on the right end of the primary oil cylinder, and a handle fixedly connected onto the outer cylinder of the base. The port is fixedly connected to the left end of the primary oil cylinder, the center thereof being provided with a circular hole that clearance-fits the piston rod arranged in the primary oil cylinder. A circular flange of the rear end cover is fixedly connected onto the right end face of the primary oil cylinder. The base is connected to a guide supporting sheath sleeved, in a clearance-fitted way, on the outer cylinder of the primary oil cylinder. A bearing seat is provided on the right end wall of the base Two screw holes are symmetrically provided at the right end face of the rear end cover.