Patent ID: 8056936

Claim:
A telescopic pipe structure for a marine light, comprising a telescopic pipe and a positioning device, the telescopic pipe comprising a second pipe and a fixed pipe, the fixed pipe having an outer threaded portion at an upper end thereof for insertion of a lower section of the second pipe, the positioning device being adapted for controlling the telescopic pipe in a fixed status or in an adjustable status, the positioning device comprising a rotatable lid, a resilient sleeve, and a metallic ring, and characterized by: the rotatable lid being in a cylinder shape and comprising a central accommodating space, a contracted opening at an upper end, an inner threaded portion at a central inner wall, a pair of grooves longitudinally formed at the inner threaded portion each groove of the pair of grooves being located in a position directly opposite one another, and a skidproof surface around an outer wall thereof; the resilient sleeve comprising a central through hole and a flange at an upper end thereof; the metallic ring having a central hole, the metallic ring forms a continuous ring; thereby, the metallic ring holding against the upper end of the fixed pipe and a lower end of the resilient sleeve, respectively, the rotatable lid being turned clockwise or counterclockwise for changing the second pipe in a fixed status or in an adjustable status, and wherein the pair of grooves are configured to allow the metallic ring to be inserted along the pair of grooves to thereby pass through the threaded portion into the central accommodating space and then be turned at 90 degrees to engage with the top of the inner threaded portion.