Charging structure, charging base, cleaning device base and cleaning equipment

The invention discloses a charging structure, and belongs to the field of ground cleaning equipment, the charging structure comprises a shell, a charging needle, an elastic piece and a charging wire, the elastic piece comprises a main body, a fixed section and a connecting end, the connecting end is fixedly connected with the charging wire, the shell comprises a cover plate and a support, and the fixed section and the support are buckled to enable the main body to be installed in the support. At least one part of the charging needle is located in the shell and abuts against the main body to achieve electrical connection, the charging needle can move in a reciprocating mode in the deformation direction of the main body under the action of external force, the cover plate is buckled with the support, and when the main body is in a natural state, the charging needle abuts against the cover plate. On the premise of ensuring simple manufacturing process and high reliability by adopting a power supply mode of connec