The invention relates to an anti-
drop structure for a regulating valve
bushing, which comprises a valve body, a
valve seat, a valve cover, a valve rod, a valve core and a
bushing, wherein the
valve seat is fixed in the valve body, the valve cover is fixed on the valve body, the valve rod is spliced in the valve cover in a sliding and sealing manner, the valve core is fixed at the bottom end part of the valve rod, an end face of the
bushing pushes against limiting steps, a limiting outer
conical surface is arranged at the outer side edge of the other end part of the bushing, and the other end part of the bushing is contacted with a limiting inner
conical surface of an extruding
flange. With the adoption of the structure, tools such as a drilling bit and a screw tap are not required during the
assembly course, as the drilling bit and the screw tap are easy to break when in use to cause work injuries, dangerous
processing procedures are reduced, the requirement for the dimensional tolerances of the bushing and a matching surface of the bushing is lowered, the
assembly is faster and more reliable, the
assembly efficiency is improved, the number of the location steps is increased, the drop of the bushing is effectively prevented, the reliability of a product is improved, the service life of the product is prolonged, and the significant economic benefit is achieved.