Oil tank bottom shell check ring convenient to use

The utility model relates to the technical field of oil tank bottom shell check rings, in particular to an oil tank bottom shell check ring convenient to use, which comprises a main body, a concave through groove is formed in the side edge of the main body, a first through hole is formed in the front surface of the main body, the first through hole penetrates through the concave through groove and penetrates through the main body, and a fixing shaft is movably connected in the first through hole. A concave through groove is formed in the main body, a fixing block is arranged in the concave through groove, an arc-shaped ring is fixedly connected to the side, away from the main body, of the fixing block, the arc-shaped ring and the main body are symmetrically designed, a second through hole is formed in the fixing block, and the second through hole is movably connected with the fixing shaft. According to the oil tank bottom shell check ring, the whole check ring is divided into a plurality of component combinat