Patent ID: 6402117
Filing Date: 2002-06-11
Classification: E01F,E04H

Abstract:
A display frame fixing device comprising:an elongate threaded rod embedded in the ground and having a little upper section exposing out of the ground; a base having female threads in a center bottom, an insert member formed in an upper portion, said female threads engaging with said little upper section of said elongate threaded rod, said insert member having two annular inclined surfaces abutting on each other; a fixing cylinder having a center hole to fit around said base, two openings formed in an annular wall of a lower end, a notch formed near each said opening and having a lateral small hole communicating with each said opening, an insert block fitted in each said opening having a lateral small hole and two sloped surfaces formed to abut on each other vertically in an inner side, a pin inserting in said each lateral hole of each said notch and also in said lateral hole of each said insert block so as to pivotally connect each said insert block in each said opening, and male threads formed in an outer surface of the end; an elongate cylinder having a center through hole, a smaller diameter section formed in a lower portion and a smallest diameter end section fitting in said center hole of said fixing cylinder, said center through hole used for inserting a pole or a bar of a display frame; and, a sleeve movably fitting around said elongate cylinder and having female threads in a lower end to engage with said upper male threads of said fixing cylinder, an annular sloped surface formed in an inner wall of a lower end, and a plurality of lateral pin-holes formed spaced apart in a lower portion for pins to fit therein.