| 摘要 |
<p>The present invention relates to a frame bar coupling device forming a structure frame comprising: multiple linear or bent frame bars; a fixing frame coupled to the top or middle of the frame bars to arrange the frame bars at regular intervals; and a rail-type coupling frame having multiple fitting holes bored with the same cross section as the frame bars at regular intervals to fit the frame bars. The frame bar coupling device forming the frame of the structure facilitates coupling, increases coupling force, and reduces assembly time by fitting the coupling frame in both ends or the middle of the frame bars to form the frame of the structure when the structure, such as a security grille, a vinyl greenhouse, a factory structure, a ladder, a guardrail, an awning, a fence, a front entrance, a dog's house, and others, in which multiple frame bars are arranged in parallel or alternatively coupled in a horizontal and vertical directions.</p> |
