Long-distance pipe pushing construction relay interval friction-reducing pushing force relay device

Abstract

This utility model discloses a friction-reducing thrust relay device for intermediate sections in long-distance pipe jacking construction, relating to the field of pipe jacking equipment. The utility model includes a first connecting pipe, an outer protective cover fixedly connected to the outer surface of the first connecting pipe, an opening groove disposed on the inner surface of the first connecting pipe, a hydraulic cylinder fixedly connected to the inner surface of the opening groove, and a second connecting pipe fixedly connected to the end of the hydraulic cylinder away from the first connecting pipe. By incorporating an oil supply pipe, nozzle, filter element, L-shaped connecting frame, fixing block, inclined block, guide rod, oil inlet tank, stainless steel spring, inclined pressure block, and oil inlet pipe, this utility model can form a stable oil film on the outer surface of the outer protective cover within a large load range, thereby effectively reducing friction during pipe jacking movement between intermediate sections, thus significantly reducing construction difficulty. By incorporating an oil storage tank, oil pump, first delivery pipe, and second delivery pipe, lubricating oil can be continuously supplied to the inside of the oil inlet tank, ensuring the stability of the lubrication process.

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