Aperture device and sliding assembly thereof

Abstract

An aperture device and a sliding assembly thereof, wherein the sliding assembly is used for generating sliding rotation around an axis, and the sliding assembly includes a first assembly member, a second assembly member, and a plurality of balls. The first assembly member has a first surface and a plurality of first accommodating grooves arranged on the first surface. The second assembly member has a second surface and a plurality of second accommodating grooves respectively arranged corresponding to the plurality of first accommodating grooves. The balls are disposed in the plurality of first accommodating grooves and the plurality of second accommodating grooves, whereby the first surface slides relatively to the second surface in a manner of rotating around the axis. The first accommodating grooves include a plurality of first limiting grooves, the plurality of second accommodating grooves include a plurality of second limiting grooves arranged corresponding to the plurality of first limiting grooves, and the plurality of first limiting grooves The groove and the plurality of second limiting grooves each have two groove walls which are arranged facing each other and inclined relative to the axis. At least one ball is arranged in each first limiting groove and each second limiting groove that are arranged correspondingly.

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