| CPC A47L 11/4088 (2013.01) [A47L 11/28 (2013.01); A47L 11/4038 (2013.01); A47L 2201/00 (2013.01)] | 13 Claims |
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1. A robot cleaner comprising:
a main body portion;
a plurality of cleaner fixing portions provided at a lower portion of the main body portions;
a plurality of cleaners for wet cleaning being fixed to the plurality of cleaner fixing portions, respectively;
a liquid supply portion provided in the main body portion and storing a liquid and supplying the stored liquid to at least one of the plurality of cleaners;
a liquid distribution member provided at a lower portion of the main body portion and directly supplying the stored liquid to at least one cleaner of the plurality of cleaners; and
a flow path portion providing a movement path of the liquid from the liquid supply portion to the liquid distribution member,
wherein the flow path portion includes a pump for moving the liquid passing through the flow path portion and a check valve for preventing the liquid present in the flow path portion from being ejected to an outside of the robot cleaner when the pump does not operate,
wherein the flow path portion further includes a first flow path through which the liquid supplied from the liquid supply portion passes first, a second flow path connecting the first flow path to the pump, a third flow path connecting the pump to the check valve, and a fourth flow path connecting the check valve to the liquid distribution member, and
wherein the liquid supplied from the liquid supply portion reaches the liquid distribution member sequentially by passing through the first flow path, the second flow path, the pump, the third flow path, the check valve, and the fourth flow path.
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