The utility model provides a water spraying device and a photovoltaic cleaning
robot. The water spraying device comprises a
robot body, at least one rolling
brush module and a water spraying
assembly. At least one rolling
brush module comprises a bracket and a rolling
brush; the rolling brush is rotatably connected to the bracket; the support is arranged in front of or behind the
robot body and connected with the robot body. The water spraying
assembly comprises a supporting base, a water inlet
pipe, a flow dividing piece and a water spraying piece. The supporting base is installed on the robot body. The water inlet
pipe penetrates through the supporting base. The flow dividing piece is located between the water inlet
pipe and the water spraying piece and communicates with the water inlet pipe and the water spraying piece. Water entering from the water inlet pipe is conveyed to the water spraying part under the
shunting action of the
shunting part, sprayed out by the water spraying part and shunted based on the
shunting part, so that one water inlet pipe can be compatible with a plurality of water spraying parts, water spraying of the plurality of water spraying parts is realized, the adoption of a plurality of water inlet pipes is avoided, and the water inlet pipe of the water spraying device is prevented from being twisted.