Anchoring back insertion sealing assembly with over-cut shearing function

Abstract

The utility model discloses a kind of anchoring back insertion sealing assembly with over lifting shearing function, including main shaft, the main shaft is divided into sleeve section and shearing section, the outer circle of shearing section is less than the outer circle of sleeve section, further include: anchoring sleeve, it is sleeved on sleeve section, several slots are passed through and are established on the anchoring sleeve, several sleeve pieces are formed by the lower end of anchoring sleeve being divided into several circumferential uniform interval arrangements by several slots, the outer end lower section of sleeve piece has pawl;Shearing ring, it is fixedly sleeved on shearing section, the upper end of shearing ring has chamfer, the lower end of sleeve piece and the chamfer of shearing ring are in contact with arrangement;Shearing pin, shearing ring is fixedly sleeved on shearing section by shearing pin;When needing to be taken off, lifting main shaft can make pawl and packer disengage, solve the limitation that traditional back insertion sealing can only right-handedly take off, guarantee the smooth progress of construction operation.

Images