This icon is meant to represent a link of chain. It is composed of three links that are represented by intersecting spherical shapes connected by a straight line. It looks just like three links of chain that interlock together.
This Link icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 6,000 icons, all in the same style and quality.