Self-wringing foam cotton mop with labor-saving wringing operation

A self-wringing foam cotton mop with a labor-saving wringing operation, the self-wringing foam cotton mop comprising a mop rod and a foam cotton head, wherein:

• the foam cotton head is rotatably connected to a bottom end of the mop rod;
• a wringing frame is disposed on the mop rod;
• during mopping, the foam cotton head is separated from the wringing frame;
• a squeezing mechanism capable of squeezing the foam cotton head entering the wringing frame is disposed on the wringing frame;
• a position of the squeezing mechanism is changeable, so that the position of the squeezing mechanism when the foam cotton head is moved upward relative to the wringing frame is different from the position of the squeezing mechanism when the foam cotton head is moved downward relative to the wringing frame;
• a first amount of deformation generated by the foam cotton head during an upward movement of the foam cotton head relative to the wringing frame is greater than the second amount of deformation generated by the foam cotton head during a downward movement of the foam cotton head relative to the wringing frame;
• wherein the squeezing mechanism is adapted for squeezing side surfaces of front and rear sides of the foam cotton head;
• when the foam cotton head is moved up relative to the wringing frame, the squeezing mechanism enables the foam cotton head to generate the first amount of deformation in a width direction;
• when the foam cotton head is moved down relative to the wringing frame, the squeezing mechanism enables the foam cotton head to generate the second amount of deformation in the width direction;
• wherein the wringing frame comprises a through hole for allowing an end surface of the foam cotton head to pass therethrough;
• two squeezing mechanisms are respectively arranged on front and rear sides inside the through hole and can swing relative to the wringing frame;
• during a wringing process, the foam cotton head is rotated to allow the end surface to be aligned with the through hole;
• in the process that the foam cotton head enters the through hole and moves up relative to the wringing frame, the two squeezing mechanisms that do not swing enable the foam cotton head to generate the first amount of deformation;
• in the process that the foam cotton head enters the through hole and moves down relative to the wringing frame, the two swung squeezing mechanisms enable the foam cotton head to generate the second amount of deformation;
• at least one of the squeezing mechanisms comprises a squeezing plate and a connecting plate;
• a wringing roller for being contact with the side surfaces of the foam cotton head is disposed on the squeezing plate, and the squeezing plate is rotatably constrained on the wringing frame and is movable up and down within a certain range in an axial direction of the wringing frame;
• one end of the connecting plate is rotatably connected to the wringing frame, while the other end of the connecting plate is hinged to an upper end of the squeezing plate;
• and
• an elastic member for keeping a lower end of the connecting plate in a trend of deflecting close to the side surface of the foam cotton head and a limiting structure for limiting an upward movement of the connecting plate are disposed on the wringing frame.