Connector for oil extraction pump and oil extraction device

The utility model discloses a connector for an oil extraction pump and an oil extraction device, and belongs to the technical field of oil equipment. The connector comprises an inner pipe, an outer pipe and a connecting piece, the inner pipe is arranged in the outer pipe, an oil conveying space is formed between the inner pipe and the outer pipe, at least part of the connecting piece is arranged in the inner pipe, a first sealing ring is arranged between the connecting piece and the inner pipe, and the inner pipe is movably arranged on the connecting piece in a sleeving mode through the first sealing ring. An inner ring of the first sealing ring is in sealing contact with the outer wall of the connecting piece, an outer ring of the first sealing ring is in sealing contact with the inner wall of the inner pipe, and the connecting piece is connected with the outer pipe so that the inner pipe can be movably connected with the outer pipe through the connecting piece. According to the scheme, the problem that in t