| 摘要 |
A grille includes a rectangular metal open frame formed of two main horizontal metal tubes and two main vertical metal tubes, a plurality of transverse metal tubes connected between the main vertical metal tubes, and a plurality of longitudinal metal tubes arranged into parallel rows in parallel to the main vertical metal tubes between the main horizontal metal tubes, wherein the main horizontal metal tubes each have a plurality of longitudinally spaced through holes, the transverse metal tubes each have a plurality of through holes corresponding to the through holes on the main horizontal metal tubes, and a plurality of screw bolts are respectively inserted through the through holes on the main horizontal metal tubes, the longitudinal metal tubes and the through holes on the transverse metal tubes are respectively screwed up with a respective lock nut to fix the main horizontal metal tubes, the transverse metal tubes and the longitudinal metal tubes together, enabling the main vertical metal tubes to be retained between the main horizontal metal tubes, and the longitudinal metal tubes of same row to be abutted against one another end to end in the through holes on the transverse metal tubes.
|
