US Pat. No. 10,342,115

HIGH-FREQUENCY-TUNING SLIDING ELECTRICAL CONTACT

HEFEI CAS ION MEDICAL AND...

1. A high-frequency-tuning sliding electrical contact, comprising a tuning ring, sliding between an outer sleeve and an inner sleeve; wherein the outer sleeve is sleeved on the inner sleeve; the tuning ring comprises an inner elastic piece, an upper base, an outer elastic piece and a lower base; the upper base and the lower base are welded as an integrity; the inner elastic piece and the outer elastic piece are uniformly provided along an axial direction and welded on the lower base; pull rods are welded to an upper side face of the upper base; and upper ends of the pull rods are driven by a motor to move up and down, such that the turning ring slides up and down between the outer sleeve and the inner sleeve along the pull rods to realize frequency tuning, and suitable for realizing high-frequency tuning in a small gap range, so that the availability and maintainability of the tuning ring are better.