Multi-layer nested inner container easy to disassemble and clean and sperm extractor comprising same

A sperm extractor, comprising a multi-layer nested inner container, an outer housing, and a control component;

• wherein the multi-layer nested inner container comprises a soft cup, a hard inner long cylinder and an outer cylinder;
• wherein the soft cup is arranged in a cavity of the hard inner long cylinder in an interference fit manner to form a detachable assembly, the hard inner long cylinder is sleeved with the outer cylinder with a gap between the two, at least part of an outer surface of the hard inner long cylinder is provided with stoppers, and the stoppers abut against the outer cylinder to form interference fit;
• wherein the inner container is fixed in an inner cavity of the outer housing in a snap fit manner, an opening of the outer housing is in the same direction as an opening of the inner container, the inner cavity of the outer housing also contains the control component, and a vibration part of the control component is connected with the soft cup to control the vibration of the soft cup;
• wherein the opening of the outer housing is further provided with a guide ring in a snap fit manner, and a protective cover is arranged on the guide ring.