3results about How to "Large deformation range" patented technology

The invention relates to the technical field of industrial guide pipe linings, in particular to a guide pipe polytetrafluoroethylene lining connecting piece with an adjustable expansion structure, which comprises a main piece part, the outer sides of the two ends of the main piece part are movably connected with connecting parts, and the outer sides of the connecting parts are in close contact with a guide pipe lining. The main part comprises a first rigid pipe, a second rigid pipe and a stainless steel corrugated pipe, the opposite sides of the first rigid pipe and the second rigid pipe are fixedly connected with clamping rings, and the two ends of the stainless steel corrugated pipe are fixedly connected with the two clamping rings respectively. According to the guide pipe polytetrafluoroethylene lining connecting piece with the adjustable expansion structure, the length can be adjusted through cooperation of the main piece part and the connecting part, and the stainless steel corrugated pipe and the modified fluororubber hose section of the main piece part are combined to compensate for different axis deviations of a pipeline; the corrugated hollow sealing pipe sleeve of the connecting part can be tightly attached to the guide pipe lining to prevent media from making contact with the inner wall of the pipeline, and the advantage of being stably fixed to the outer pipe of the guide pipe is achieved.

The invention relates to the technical field of cable detection, and discloses cable tensile strength detection equipment which comprises a main support, a first supporting ring, a second supporting ring and a clamp, the first supporting ring and the second supporting ring are arranged on the upper side and the lower side of the main support correspondingly, and the first supporting ring and the second supporting ring jointly rotate and are connected with the clamp in a sleeving mode; the two ends of a to-be-tested cable are clamped and wound by the clamps on the upper side and the lower side of the main support respectively, and the two clamps rotate reversely at the same time to stretch the to-be-tested cable. Compared with the prior art, the device has the advantages that the larger the tensile force is, the tighter the clamping is, the self-locking clamping is formed, the slipping problem is avoided, the upper clamp and the lower clamp synchronously and reversely rotate to wind a cable, axial uniform stress is achieved, cable damage is avoided, cable stretching is conducted through winding, and the device has a large deformation range; winding stretching and clamp retracting and releasing are driven by the same power source, equipment is simple, samples are convenient to take and place, and use is easy.

This invention discloses a linear displacement actuator based on a single-pass shape memory alloy, comprising a housing, within which a movable cam is disposed. An auxiliary spring and a shape memory alloy spring are respectively disposed on opposite sides of the movable cam. Electrode plate I and electrode plate II are respectively disposed at both ends of the shape memory alloy spring. An output rod is connected to the movable cam via rollers. This invention solves the problem of difficulty in achieving high-precision deformation control in existing actuators due to the nonlinear deformation characteristics of shape memory alloys.