This utility model discloses a
flange designed to prevent rotational detachment, comprising two
flange tubes and a connecting mechanism. The opposite ends of the two
flange tubes are in contact with each other, and the connecting mechanism is disposed at the surface connection point of the two flange tubes. The connecting mechanism includes a sealing component and a connecting component. The sealing component is disposed on the surface of the two flange tubes, and the connecting component is disposed on the surface of the sealing component. Therefore, by providing a connecting mechanism, after the two flange tubes are connected by the connecting mechanism, the flange tubes can rotate freely, preventing the two flange tubes from being unable to rotate due to the flange seat connection, thus improving the flange's performance. Simultaneously, the connecting component, in conjunction with the sealing component, ensures that the two flange tubes can rotate freely without detaching, and the connecting component allows for quick installation and disassembly of the two flange tubes, improving operational efficiency.