Quick-fitting pipe fitting

A quick-fitting pipe fitting for connecting at least one pipeline element, comprising a pipe fitting body, the pipe fitting body is configured with a pre-installation section, the pre-installation section is movably connected with a pipe clamp assembly, the pipe clamp assembly comprises at least two movable clamp parts and at least one fastener, the at least one fastener is configured to be operated to fasten the at least two movable clamp parts;

• at least one sealing ring is arranged in the pipe clamp assembly,
• wherein each of the at least two movable clamp parts comprises a first movable engagement key and a second movable engagement key, the first movable engagement key has a first movable engagement face configured to engage with a first joint peripheral face of a first coupling end of the at least one pipeline element, and the second movable engagement key has a second movable engagement face in engagement with a second joint peripheral face of a second coupling end of the pipe fitting body,
• wherein the pipe clamp assembly comprises a first movable clamp part and a second movable clamp part and one of the at least one fastener, the first movable clamp part and the second movable clamp part are rotationally connected to the pre-installation section, the one of the at least one fastener is arranged at ends of both the first movable clamp part and the second movable clamp part away from the pre-installation section.