Handheld ring for probe protective sleeve and disposable probe protective sleeve assembly

The utility model discloses a handheld ring for a probe protective sleeve, which comprises a cylinder body and an end cover, and the probe protective sleeve is sleeved outside the cylinder body; the edge of the head end of the cylinder body is outwards bent along the radial direction of the cylinder body to form a turnup, and the head end of the cylinder body is provided with a rib ring fixing piece for fixing a rib ring of the probe protective sleeve; the end cover is arranged outside the cylinder in a sleeving mode, the head end of the cylindrical end cover is in butt joint with the turned-over edge, and an annular cavity used for containing the probe protection sleeve is formed among the outer wall of the cylinder, the inner wall of the cylindrical end cover and the turned-over edge. The handheld ring is used for protecting the probe protective sleeve from being polluted by the outside, is convenient to take and sleeve the probe protective sleeve, and is beneficial to solving the problem that cross infecti