Aperture device and sliding assembly thereof

Abstract

An aperture device and a sliding assembly thereof. The sliding assembly includes a first assembly member, a second assembly member and a plurality of balls. The first assembly component has a first surface and a plurality of first accommodating grooves, the first surface is perpendicular to an axis, and the plurality of first accommodating grooves are arranged on the first surface. The second assembly member has a second surface and a plurality of second accommodating grooves, the second surface is perpendicular to the axis and corresponds to the first surface, and the plurality of second accommodating grooves are respectively arranged corresponding to the plurality of first accommodating grooves. The balls are arranged in a plurality of first accommodating grooves and a plurality of second accommodating grooves, whereby the first surface slides relatively with respect to the second surface in a manner of rotating around an axis. The first accommodating grooves include at least one first limiting groove, the plurality of second accommodating grooves include at least one second limiting groove, the first limiting grooves and the second limiting grooves are arranged correspondingly, and each of the first limiting groove and each of the second limiting groove have two groove walls which are arranged facing each other and inclined relative to the axis.