Patent ID: 8448618

Claim:
A variable valve lift device equipped with a swing arm variably lifting an exhaust valve or an intake valve, wherein the swing arm comprises: an outer body in which a mounting groove is formed in the middle portion thereof; an inner body mounted inside the mounting groove of the outer body and with a rear end thereof pivotally-connected to the outer body in the outer body; and a latching portion formed in the outer body and the inner body and fixing or releasing a front end portion of the inner body to the outer body, wherein the latching portion includes: an elastic member inserted into a spring groove formed in the front end portion of the inner body; a guide slidably disposed at a front end portion of the elastic member in the spring groove to be elastically moved by the elastic member toward an inner side surface of the mounting groove; a latching pin slidably inserted into a pin groove formed in the inner side surface of the mounting groove, wherein the pin groove is positioned to correspond to the spring groove when the inner body and the outer body are coupled; and a hydraulic pressure supply portion supplying hydraulic pressure to an inner side of the pin groove to insert a front end portion of the latching pin into the spring groove.