Floor drain

A device, comprising:

• a drain base adapted to be fixed on a floor;
• a drain body comprising an upper end, a lower end, and a cavity;
• a drain cup, the drain cup comprising a cup body, a stem, and a base;
• a supporting frame;
• and
• a reset member;
• wherein:
• the upper end of the drain body is integrated with the drain base, or is detachably connected to the drain base;
• the cup body comprises a lower end provided with a through hole;
• and the stem is disposed between the cup body and the base and connected to the cup body;
• the cup body, the stem, and the base are fixed on the reset member;
• the cup body is disposed in the cavity;
• a space between the drain body and the drain cup forms an annular channel, and the annular channel communicates with the through hole;
• the annular channel comprises a water inlet and a water outlet;
• the water outlet is a drainage outlet disposed on the lower end of the drain body;
• the base is adapted to open or close the drainage outlet;
• the supporting frame is connected to the upper end of the drain body and the reset member;
• the drain cup is supported by the supporting frame via the reset member;
• the drain cup and the reset member are movable with respect to the supporting frame for opening or closing the water outlet;
• the annular channel or the cup body is adapted to collect water from the floor;
• and
• when water enters the device, the annular channel or the cup body collect water from the floor, and the drain cup and the reset member are driven to move by the gravity of the water collected in the annular channel or the cup body for automatically opening the water outlet.