Rapid bayonet joint

The utility model relates to a rapid bayonet joint which comprises a joint body and a sealing gasket. A retractable clamping portion is arranged at the end portion of the joint body along the circumferential direction, the clamping portion is clamped at the position of an installation hole via a connected piece, the sealing gasket sleeves the joint body, and the joint body is also provided with a sealing gasket limiting portion which compresses and fixes the sealing gasket on the connected piece after installation. The rapid bayonet joint is simple in integral structure, and convenient and reliable in installation, improves the installation efficiency, requires no tools as a wrench in the installation process, saves the installation space, and realizes a denser wiring environment by installing more joints in a limited space.