2results about How to "Adjustable movement speed" patented technology

This utility model belongs to the technical field of mechanical parts inspection tools, and relates to a workpiece inner cone theoretical diameter difference gauge. It includes a base, a reference seat and a measuring frame on the base. The measuring frame includes a support column, a cylinder, a measuring frame pressure plate, and a guide positioning mandrel. The support column is mounted on the base, and the cylinder is mounted on the support column. The measuring frame pressure plate is connected to the cylinder via a universal joint. The guide positioning mandrel is located at the center of the measuring frame pressure plate. The outer diameter of the measuring frame pressure plate is the same as the theoretical outer diameter of the workpiece. The guide positioning mandrel has a conical guide surface adapted to the inner cone of the workpiece. This utility model, through precise structural design and positioning method, uses the workpiece reference surface as the positioning reference, uses the measuring frame pressure plate to locate the theoretical diameter of the workpiece's conical inner hole, and measures the distance from the circumference of this theoretical diameter to the end face of the reference seat using an indicator. This improves the stability and accuracy of the measurement, is easy to operate, and saves labor.

The utility model relates to fluid filling equipment technical field, concretely to a multifunctional drip-proof filling head, including valve main body, filling nozzle, sealing rod, valve core guide rod and cylinder, valve core guide rod is located in the valve main body, its upper end is connected with the piston rod of cylinder through elastic pin structure, its lower end and the upper end of sealing rod adopt the joint structure connection of horizontal slide, the elastic pin structure includes quick -mounting joint, quick -joint locating pin and positioning spring, is equipped with V -groove on quick -joint locating pin, the upper end of valve core guide rod is equipped with annular groove, the lower part of V -groove and annular groove joint cooperation, press quick -joint locating pin to make V -groove and annular groove separate to unlock valve core guide rod, when releasing, V -groove and annular groove joint to lock valve core guide rod under the action of positioning spring, the utility model discloses compact structure, convenient to assemble and disassemble, reliable sealing, applicable to a variety of filling specifications, has improved filling efficiency and operation convenience significantly.