Single-rubber-cylinder staged fracturing soluble bridge plug

The utility model discloses a single rubber sleeve staged fracturing soluble bridge plug, which relates to the technical field of bridge plugs and comprises a device body, a push rod is arranged in the device body, trapezoidal connecting blocks are fixedly connected to the peripheries of the left side and the right side of the rod wall of the push rod, trapezoidal arc blocks are arranged on one surfaces of the trapezoidal connecting blocks, and the trapezoidal arc blocks are arranged on the other surfaces of the trapezoidal connecting blocks. Fixing openings are formed in the positions, located on one sides of the multiple trapezoidal arc blocks, of the surface of the device body, multiple connecting balls are rotationally connected to one faces of the multiple trapezoidal arc blocks, telescopic grooves are formed in the centers of the faces of the multiple trapezoidal arc blocks, and first sliding grooves are formed in the opposite sides of the inner walls of the multiple telescopic grooves; an elastic struc