Leakproof gas pipeline flange

Abstract

The invention belongs to the technical field of flanges, and particularly relates to a leakproof gas pipeline flange which comprises a left flange, a right flange, a locking module and a seal module.The left flange and the right flange are arranged oppositely; multiple bolts are arranged between the left flange and the right flange; hexagon nuts are arranged on the tail parts of the bolts; No.1 gears are fixedly connected onto the hexagon nuts; the seal module is arranged between the left flange and the right flange; and the locking module is arranged on the left flange. According to the leakproof gas pipeline flange provided by the invention, by utilizing the vibration of a pipe body, a heavy block pushes a rocking bar to move up and down, a rotating plate is rotated so as to enable a No.2 gear to rotate unidirectionally through a pulling block and a right-angle slot, and the No.2 gear re-screws the hexagon nuts through the No.1 gears, so that the automatic locking efficiency of thehexagon nuts is improved, and the sealing efficiency is favorably improved; and by utilizing the mutual extrusion of two annular seal bags, plasticine in the two annular seal bags flows so as to fillgaps among the left flange, the right flange and a pipe body, so that a seal effect of the pipe body is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of flanges, in particular to an anti-leakage gas pipeline flange. Background technique [0002] Pipe flanges are generally disks or rings forming an outer rim at the ends of pipes that are used to join a pipe to another pipe or pipe fitting. The flange usually has a series of bolt holes provided around its periphery to allow the pipe to be secured at the joint. A flange joint refers to the end-to-end connection of two pipes, where the connecting parts each have a flange that bolts the ends of the pipes together. Typically, rubber gaskets are provided between the faces of adjoining flanges of the flange joint. It is important that the faces of the adjoining flanges be as smooth and flat as possible to ensure a proper seal at the joint. When existing rubber gaskets are in contact with flanges, small gaps tend to appear. [0003] There are also some technical solutions for pipeline flanges in the prior art....

AI Technical Summary

Problems solved by technology

However, when the pipe flange is subjected to vibrations, the bolts at the connection position of the two flanges tend to loosen, which leads to the loosening of the flange and the leakage of the pipe. Therefore, a leak-proof gas pipe flange is proposed. It can automatically lock when the pipe body vibrates and the flange becomes loose, improving the sealing efficiency

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