The utility model belongs to the field of
underwater rock
mass fracturing
engineering, and particularly relates to an anti-
buoyancy lotus-shaped base of an
underwater liquid oxygen fracturing
pipe and a
machining mold of the anti-
buoyancy lotus-shaped base. The anti-
buoyancy lotus-shaped base comprises a
barrel, a conical cap and a plurality of elastic limiting petals, the overall structure is simple, when used, the anti-buoyancy lotus-shaped base is installed at the lower end of the fracturing
pipe, the conical cap has the guiding function, and the limiting petals are arranged on the
barrel. A step between a sleeve and a
drill hole can be easily penetrated through, so that normal running of the sleeve is ensured; and the plurality of elastic limiting petals are elastically propped against the hole wall, so that the facing buoyancy during
underwater installation of the fracturing
pipe is effectively resisted, the installation of the fracturing pipe at a specified position is ensured, a foundation is built for the subsequent stable operation of the underwater
liquid oxygen fracturing pipe, and the safety and reliability of the fracturing pipe in an underwater environment are powerfully ensured. The
machining die is simple in structure and low in cost, and batch
machining of the anti-buoyancy lotus-shaped base can be achieved.