2results about How to "Control stiffness" patented technology

This invention discloses a telescopic mechanism, system, and method for an internal alignment device for small and medium diameter pipes. The mechanism includes a hydraulic cylinder, a male mold, a female mold, and a universal coupling. The male mold is fitted inside the female mold. The female mold connects to the rear support of the internal alignment device. The male mold connects to the front support of the internal alignment device. One end of the universal coupling connects to the front support of the internal alignment device, and the other end connects to the piston rod of the hydraulic cylinder. When the piston rod of the hydraulic cylinder extends outward, it pushes the universal coupling to move the male mold away from the female mold. The system includes at least one displacement sensor, a front support of the internal alignment device, a rear support of the internal alignment device, a controller, and a telescopic mechanism. This mechanism, system, and method can flexibly switch the telescopic state of the telescopic mechanism according to the conditions of the pipeline, allowing the internal alignment device to smoothly pass through bends in small and medium diameter pipes.

The utility model discloses a catheter robot, including outer catheter instrument and inner catheter instrument, the inner catheter instrument at least partially movably set in outer catheter instrument, the outer catheter instrument includes first conductor, first joint part and first memory alloy silk, first memory alloy silk sets up on first joint part, first conductor is connected with first memory alloy silk, and is used for the electrification or heating of first memory alloy silk to change the rigidity of first joint part to make outer catheter instrument support inner catheter instrument movement. The catheter robot of the utility model is strong.