Liquid management for floor-traversing robots

An autonomous floor-traversing robot, comprising:

• a wheeled chassis comprising a chassis housing and at least one motorized wheel configured to propel the chassis across a floor, the chassis defining an interior compartment disposed beneath a chassis ceiling;
• a cover extending across at least a central area of the chassis ceiling;
• and
• a graspable handle connected to the chassis and located outside the cover so as to be accessible from above the robot, the handle arranged to enable lifting of the robot;
• wherein the chassis ceiling has an upper surface defining one or more open drainage channels extending beneath the cover from a corner of a mounting bay retaining the handle and configured to conduct liquid toward an edge region of the robot.

An autonomous floor-traversing robot, comprising:

• a wheeled chassis comprising a chassis housing and at least one motorized wheel configured to propel the chassis across a floor, the chassis defining an interior compartment disposed beneath a chassis ceiling;
• a cover extending across at least a central area of the chassis ceiling;
• and
• a button plate coupled to an inner surface of the cover, the button plate comprising:
• a substantially flat base;
• a grommet situated within the base, the grommet comprising a flexible diaphragm;
• and
• a disk retained by an inner flange of the grommet, the disk positioned above an activatable mechanical button disposed beneath the chassis ceiling.