Needle valve element dismounting device

The utility model particularly discloses a needle valve core dismounting device, which comprises a pull rod, a pull rod, a pull rod, a connecting rod, a connecting rod, a connecting rod and a connecting rod, wherein the head end of the pull rod is detachably connected with the outer end of a valve core of a needle valve; the power part is used for driving the pull rod to axially move outwards; the power part comprises a force bearing mechanism connected to the tail end of the pull rod and an impacting mechanism capable of moving outwards in the axial direction of the pull rod to impact the bearing part. An end cover of the needle valve is detached to expose the outer end of a valve element of the needle valve, then the head end of the pull rod is connected with the outer end of the valve element, the valve element and the pull rod are kept coaxial, then a force bearing mechanism installed at the outer end of the pull rod is impacted through an impact mechanism, and then the valve element is pulled out through