Pipeline connecting device

The utility model discloses a pipeline connecting device, and relates to the technical field of pipeline connection. The device comprises a first pipeline clamp, a second pipeline clamp, a connecting rod, a supporting plate, a fixing structure, a buffering structure and a linkage rod. The first pipeline clamp is connected with the second pipeline clamp through a fixing structure, a buffer block is fixed to the outer side wall of the second pipeline clamp, buffer sliding grooves are formed in the two end faces of the buffer block respectively, and buffer structures are arranged in the buffer sliding grooves and connected with the connecting rod through linkage rods. Limiting pieces are fixedly connected to the two ends of the second pipeline clamp correspondingly and hinged to one ends of connecting rods through rotating shafts, and supporting plates are fixedly connected to the other ends of the connecting rods. Compared with a traditional screw fixing mode, the device is more convenient, faster and more stab