Torque type pipe joint, pipe joint assembly and pipeline connecting structure

The utility model provides a torque type pipe joint, a pipe joint assembly and a pipeline connecting structure. The torque type pipe joint comprises a sleeve shell, and a threaded joint, a floating piece and an elastic piece are sequentially installed on the sleeve shell; the threaded connector is installed at one end of the sleeve shell and rotationally connected with the sleeve shell. The floating piece and the elastic piece are both arranged in the sleeve shell, and the floating piece is in sliding fit with the sleeve shell in the axial direction of the sleeve shell; clamping teeth are arranged on the threaded connector, a plurality of clamping grooves are distributed in the floating piece in the circumferential direction, and the clamping teeth can be meshed with the clamping grooves. The sleeve shell is provided with a first limiting structure used for limiting the threaded connector to move in the axial direction of the sleeve shell. A second limiting structure used for limiting rotation of the floating