EXPLOSION-PROOF DECOMPRESSION PLATE

• US 20100236153A1
• Filed: 03/17/2009
• Published: 09/23/2010
• Est. Priority Date: 03/17/2009
• Status: Active Grant

• Current Assignee: San Ford Machinery Co., Ltd.
• Original Assignee: San Ford Machinery Co., Ltd.
• Inventors: CHENG, Mao-Nan
• Granted Patent: US 8,418,412 B2
• Time in Patent Office: Days
• US Class Current: 52/1
• CPC Class Codes: E06B 5/12 against air pressure, explosion, or gas

Abstract

An explosion-proof decompression plate is provided outside the explosion-proof window of an architecture or equipment. A convex part that protrudes out of the window is formed in the center of the decompression plate, and a flange is formed around the convex part. Further, a confined space is formed inside the decompression plate that is opposite to the convex part. Several thru holes are formed on the flange, and a lock-joint portion of which the area is smaller than the thru hole is formed. Several joint ribs easily splitting are formed between the flange and the lock-joint portions to connect. Accordingly, when the air blast occurs in the architecture or equipment, the decompression plate is thrust away by the blast pressure caused by the air blast and an open mouth is formed to vent out the blast pressure.

Claims

1. An explosion-proof decompression plate, mainly serving as a plate, in which a convex part that protrudes outwards is formed in the center of the decompression plate, a flange is formed around the convex part, a confined space is formed inside the decompression plate that is opposite to the convex part, several thru holes are formed on the flange, and a lock-joint portion of which the area is smaller than the thru hole is formed, several joint ribs are formed between the flange and the lock-joint portions, the two ends of each of the joint ribs are separately conjoint to the flange and the lock-joint portions, and a first lock hole is formed passing through each lock-joint portion.

2. The explosion-proof decompression plate according to claim 1, wherein the decompression plate is mounted onto a frame, the frame is mainly formed with a base plate, an open mouth of which the area is smaller than the decompression plate is formed passing through the center of base plate, around the circumference of mouth, a second lock hole opposite to the first lock hole on the decompression plate is formed, the circumference of base plate transversally stretches along the central axis of open mouth to form a containing space where the decompression plate is contained, and the base plate is formed with several third lock holes around the open mouth to mount the frame to the outside of explosion-proof window of an architecture or equipment.

3. The explosion-proof decompression plate according to claim 2, wherein a seal ring surrounding the open mouth of base plate is provided between the decompression plate and the frame.

4. The explosion-proof decompression plate according to claim 2, wherein at least one position limiting unit is further connected between the decompression plate and the frame.

5. The explosion-proof decompression plate according to claim 4, wherein the position limiting unit comprises a screw bolt passing through the decompression plate and the frame, at least two gaskets set around the screw bolt, and a cap nut mounted onto the end of screw bolt.