Patent ID: 7240883

Claim:
A head mount lamp seat comprising: a pivotal unit comprising: a pivotal clement; a connecting seat for fixing the pivotal element and for connecting a cap or a head mount; the connecting seat being formed with a pair of connecting ears; a retaining strip passing through the connecting ears so that the pivotal unit can retain the cap the head mount rapidly; a movable unit comprising: a connecting sheet having two ends, a first movably portion installed at one end of the rod, the first movably portion having an approximate round shape; the first movably portion being pivotally installed to the pivotal element so that the movable unit is pivoted to the pivotal unit by the pivotal element; a first retaining unit being installed to the first movably portion; a second movable portion being installed at another end of the connecting sheet; the second movable portion having an approximate round shape; a second retaining unit being installed to the second movable portion; each of the first retaining unit and the second retaining unit comprising: a spring; two first teeth disks installed to two ends of the spring; each first teeth disk having a first teeth portion facing toward the spring; two second teeth disks installed to outer sides of the two first teeth disks; each second teeth disk having a second teeth portion facing toward the first teeth disk; a stud passing through the pivotal element, the spring, the two first teeth disks and the two second teeth disks; a nut screwing with the stud so as to compress the pivotal element, spring, two first teeth disks and two second teeth disks; thereby the first teeth disks being engaged to the second teeth disks: a rotary unit; the second movable portion serving to make the movable unit to swing along the rotary unit; the rotary unit comprising: a body; a pivotal portion for installing the rotary unit to the second movable portion; a rotary teeth surface protruded from the body and having an axial hole; a sliding path being a concave path in the body and arranged approximately around the rotary teeth surface; a retaining seat for connecting a lamp; a fixed teeth surface corresponding to the rotary teeth surface; the fixed teeth surface being installed below the retaining seat and around the axial hole; thereby the retaining seat being rotatable continuously or step by step with respect to the rotary teeth surface; and an auxiliary unit being installed below the retaining seat with respect to the sliding path.