초록 ▼

The auxiliary frame has a plurality of frame bars made of plastic or metallic material. Each of the frame bars has a hollow inside and has a crossed reinforcing rib installed therein. One side of each of the frame bars forms an embowed reinforcing girder to achieve better reinforcing effect. A throu

The auxiliary frame has a plurality of frame bars made of plastic or metallic material. Each of the frame bars has a hollow inside and has a crossed reinforcing rib installed therein. One side of each of the frame bars forms an embowed reinforcing girder to achieve better reinforcing effect. A through hole and a snap groove are disposed at each side of the reinforcing girder. Two of the frame bars are disposed at opposite sides, while another frame bar is disposed at the top ends of the two frame bars. A fixing element is installed between the bottom ends of the two frame bars at two sides. The two ends of the frame bar at top end are screwed with the two frame bars via a plurality of screws vertically penetrating the through holes at the top ends of the two frame bars. The bottom ends of the two frame bars are screwed with the two ends of the fixing element via a plurality of screws vertically penetrating the through holes at the bottom ends of the two frame bars.

대표청구항 ▼

1. An auxiliary frame for improving a conventional frame comprising a plurality of frame bars made of plastic or metallic material, each of said frame bars having a hollow inside and having a crossed reinforcing rib installed therein, one side of each of said frame bars forming an embowed reinforcin

1. An auxiliary frame for improving a conventional frame comprising a plurality of frame bars made of plastic or metallic material, each of said frame bars having a hollow inside and having a crossed reinforcing rib installed therein, one side of each of said frame bars forming an embowed reinforcing girder to achieve better reinforcing effect, a through hole and a snap groove being disposed at each side of said reinforcing girder, two of said frame bars being disposed at opposite sides, while another said frame bar being disposed at the top ends of said two frame bars, a fixing element being installed between the bottom ends of said two frame bars at two sides, the two ends of said frame bar at top end being screwed with said two frame bars via a plurality of screws vertically penetrating said through holes at the top ends of said two frame bars, the bottom ends of said two frame bars being screwed with the two ends of said fixing element via a plurality of screws vertically penetrating said through holes at the bottom ends of said two frame bars,whereby said auxiliary frame is assembled.