Patent ID: 8014135

Claim:
An opening mechanism comprising: a base, whereon an opening is formed; a covering connected to the base in a detachable manner, the covering comprising: a main body for covering the opening, whereon a breach is formed; a hook connected to the main body for hooking the base; and a buckling part connected to a side of the main body, the buckling part comprising two lateral walls and a bottom connected to the two lateral walls, and a groove and a positioning slot being formed on the bottom; a sliding component, an end of the sliding component being disposed on the breach of the main body and passing through the buckling part in a slidable manner, an engaging part being formed on a first side of the sliding component for engaging with a fixing end and being installed inside the groove in a slidable manner, a positioning part being formed on the side of the sliding component, and the positioning slot being for contacting against the positioning part so as to position the sliding component; and an elastic component installed on the side of the main body and disposed on a second side of the sliding component for providing elastic force to the sliding component so as to drive the engaging part of the sliding component to engage with the fixing end.