Patent ID: 8649502

Claim:
A protection cover mechanism, comprising: a protective cover; a hollow hinge tube connected to the protective cover; a first hinge cover body connected to the hollow hinge tube and comprising at least one positioning rib; a spring disposed in the first hinge cover body and abutting the hollow hinge tube; a hollow driven member movably disposed in the first hinge cover body and abutting the spring, wherein the spring is abutted between the hollow hinge tube and the hollow driven member, the hollow driven member comprises a protrusion, and the positioning rib of the first hinge cover body is positioned on the hollow driven member, forcing the hollow driven member to move linearly with respect to the first hinge cover body; and a fixing base comprising a hollow tube fit on the hollow driven member and having an annular inner guide track with an undulated profile, wherein the protrusion of the hollow driven member abuts the annular inner guide track, and when the protective cover rotates with respect to the fixing base, the protrusion of the hollow driven member slides along the annular inner guide track of the fixing base and the hollow driven member forces the spring to be compressed and released.