Cleaning device

A pool cleaning robot, comprising:

• a body, wherein the body is provided with a liquid inlet portion, a liquid outlet portion, and a filtering box cavity that is provided inside the body, wherein a second cavity is formed inside the filtering box cavity, wherein an inner space of the body is divided into the second cavity and an additional cavity by the filtering box cavity;
• a filtering assembly, wherein the filtering assembly is provided inside the second cavity in the filtering box cavity and comprises a filtering box, wherein the filtering box comprises a first side surface, a second side surface, a third side surface, and a fourth side surface, wherein the first side surface is opposite to the second side surface, wherein the filtering box cavity is provided with a first side wall corresponding to the first side surface and a second side wall corresponding to the second side surface, wherein the second side wall of the filtering box cavity is provided with a water outlet, wherein the second cavity has an inner space surrounded by the first side wall of the filtering box cavity and the water outlet;
• a main water pump impeller casing, wherein a third cavity is formed inside the main water pump impeller casing;
• and
• a main water pump, wherein at least a part of the main water pump is provided inside the third cavity, wherein the liquid inlet portion, the second cavity, the third cavity, the main water pump, and the liquid outlet portion are in fluid communication, wherein the main water pump is configured to drive water to enter the second cavity through the liquid inlet portion and then flow from the second cavity to the third cavity through the water outlet and finally flow out of the pool cleaning robot from the third cavity through the liquid outlet portion;
• wherein the filtering box is located between the first side wall of the filtering box cavity and the water outlet, and the first side wall of the filtering box cavity is configured to block water in the additional cavity from directly entering the filtering box from a side of the first side wall in a direction facing the main water pump.