| 摘要 |
PURPOSE: A window cleaning device is provided to conveniently clean windows by making a window cleaning device separable and to improve the appearance by making the window cleaning device embedded. CONSTITUTION: A window cleaning device comprises: a connecting part(23) installed on a fixed frame(1) at an upper portion of a window(5) and connected to a water supply pipe; water spraying unit(21,22,23) having a pipeline(21) and nozzle holes(22) for spraying water to the window; sliding members(32) guided on guide rails(33) retained on the fixed frame; reciprocating units(11) installed on the fixed frame to reciprocatingly move the sliding members; and cleaning units(25,26) installed on the sliding members or mounting parts(31) of a motor(11) to clean the window. A brush(26) is in contact with the window in the pressure generated by a displacement unit, and cleaning effect is improved. With the window cleaning device, windows of a building are cleaned easily.
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