Patent ID: 8245991

Claim:
A supporting arm comprising a mounting seat being adapted to mount on a wall and having a mounting jacket having a bottom; a top; a middle; an external surface; a rear side; a through hole formed through the middle of the mounting jacket; and an abutting face flatly formed on the rear side of the mounting jacket between the middle and the bottom of the mounting jacket; and a top board detachably connected to the mounting jacket and having a mounting end mounted on the top of the mounting jacket; and a connecting end extending out of the top of the mounting jacket; a buffering device connected to the mounting seat and having at least one buffering shaft pivotally connected to the connecting end of the top board and having an upper end pivotally connected to connecting end of the top board; and a lower end; and a connecting frame pivotally connected to the at least one buffering shaft and abutting the mounting jacket and having a front side abutting the abutting face of the mounting jacket; a top end facing to the though hole of the mounting jacket; and a bottom end, wherein the connecting frame pivotally connected to the at least one buffering shaft near the bottom end; and a body connected to the buffering device through the mounting seat and having an external surface; two sides; a pivotal end extending through the through hole of the mounting jacket, pivotally connected to the mounting jacket and securely connected to the connecting frame near the top end to allow the external surface of the body abutting the mounting jacket in the through hole; a pivotal rod mounted in the mounting jacket and pivotally connected to pivotal end of the body; and an extending end formed with the pivotal end.