Active pipe clamp

The utility model relates to an active pipe clamp, which is used for clamping pipelines in hydraulic and pneumatic systems and various pipeline systems. The active pipe clamp comprises a base plate (6) provided with a slide slot (6-2), a screw rod, a press plate (3) and a pipe clamp piece (4), wherein the pipe clamp piece (4) is provided with a screw rod hole. Through that special screw rods (7) are arranged and the end of the screw rod hole of the pipe clamp piece (4) is provided with a cavity (4-3) matched with a screw nut, when multi-layer pipelines are clamped, multi-layer pipe clamps are connected into a whole body through connection and extension between the special screw rods (7). Each layer of pipe clamp presses the pipe clamp piece (4) to clamp tightly the pipeline through a screw nut (7-1) with a blind screw hole at the end of each special screw rod (7) and the bottom of the cavity (4-3). Consequently when the pipeline on the base layer needs maintenance, the special screw rod (7) on the upper layer is just removed in segments, and the maintenance work can be carried out under the condition that the use of the pipeline on the lower layer is not effected to overcome the shortage of the prior art.