Revolving shaft controlled movable lamp stand

Claim 1

A revolving shaft controlled movable lamp stand including a stand, a driving mechanism, and an illuminator lamp socket comprising: said driving mechanism comprises an actuating rod having a bottom and an upper end and driven rod, both said actuating rod and said driven rod being pivotally connected by means of an upper revolving shaft; said stand comprising two supporting arms bilaterally disposed to pivotally connect with said actuating rod by means of a located rod; a lower revolving shaft being pivotally connected with said actuating rod at the bottom end thereof; a holder and a handle being made on said lower revolving shaft and said locating rod respectively; said lower revolving shaft and said upper revolving shaft each comprising a circular groove and a hole, each said hole comprising an end a and an end b; a rope being provided to wind round said upper and lower revolving shafts through said holes and circular grooves of said upper and lower revolving shafts, to further let one end of said rope, which comprises a screw rod, be screwed up with the other end of said rope, which comprises a fastening matching means, so as to form a closed circulation; by means of said arrangement, said actuating rod being adjusted to change position by means of the operation through said hole and said handle so as to change the projecting position of the attached illuminator; said driven rod being adjusted by means of the up-and-down displacement of said holder, to drive said lower revolving shaft to provide an angular displacement so as to further let said rope drive said upper revolving shaft to make a synchronous movement and to further let said upper revolving shaft drive said driven rod to displace up-and-down and to change the position of the attached illuminator.