Patent ID: 8842235

Claim:
A fixing structure comprising: a front frame, wherein the front frame with a rectangle shape has four lateral sides, each lateral side includes a flat first extending part, and the four first extending parts form four corners; each of the four corners of the front frame is formed with a first mounting hole and the first mounting hole is used for fixing the front frame from the corner by a fastening member passing through the first mounting hole; each of the four sides of the front frame further includes a second extending part bent extending from the first extending part; the second extending part of at least a lateral side of the front frame is formed with a second mounting hole and the second mounting hole is used for fixing the front frame from the lateral side by a fastening member passing through the second mounting hole; each corner of the front frame has a chamfered edge formed between the two adjacent first extending parts in a horizontal direction, and two obtuse angles are formed between the chamfered edge and the two adjacent first extending parts in the horizontal direction.