Patent ID: 8418412

Claim:
An explosion-proof decompression plate mounted onto a frame, comprising: a convex part that protrudes outwards being formed in the center of the decompression plate; a flange being formed around the convex part; a confined space being formed inside the decompression plate that is opposite to the convex part; at least one through hole being formed on the flange; at least one lock-joint plate having a smaller area than the area of the at least one through hole; at least one joint rib being formed between the flange and the at least one lock-joint plate; the at least one joint rib having two ends, each of the two ends of the at least one joint rib being separately conjoint to the flange and the at least one lock-joint plate; a first lock hole being formed passing through each of the least one lock-joint plate; and at least one position limiting unit connecting the decompression plate to the frame, wherein the frame comprises a base plate; an open mouth having a smaller area than the decompression plate being formed passing through the center of the base plate; a second lock hole opposite to the first lock hole on the decompression plate being formed around the circumference of the open mouth; the circumference of the base plate transversally stretching along the central axis of the open mouth to form a containing space wherein the decompression plate is contained; and the base plate being formed with at least one third lock hole around the open mouth to mount the frame to the outside of an explosion-proof window of an architecture or equipment, and the at least one position limiting unit comprising a screw bolt passing through the decompression plate and the frame and having a length larger than the total thickness of the decompression plate and the frame; a cap nut fixed to a back end of the screw bolt adjacent to the frame; at least two gaskets respectively provided between a front end of the screw bolt and the outside of the decompression plate and between the frame and the cap nut; and a clearance being formed between the cap nut and the frame.