Extendable and retractable cleaning apparatus
    1.
    发明授权
    Extendable and retractable cleaning apparatus 失效
    可伸缩清洁装置

    公开(公告)号:US4646768A

    公开(公告)日:1987-03-03

    申请号:US626126

    申请日:1984-06-29

    CPC分类号: F28G1/16 B08B3/02 F22B37/483

    摘要: An extendable and retractable cleaning apparatus includes a multi-stage extendable and retractable arm assembly formed of a plurality of cylindrical members assembled in a telescopic manner, an ejection nozzle provided at a tip end of the innermost cylindrical member of the arm assembly, a mount housing surrounding a substantially central portion of the arm assembly to rotatably support the arm assembly and a casing integrally formed at a base end of the outermost cylindrical member of the arm assembly to form a pressure chamber in cooperation with the assembly. A rotational driving device is provided within the housing for rotationally driving the arm assembly. A washing liquid feed hose is connected to the ejection nozzle. A compressed air feed pipe has one end mounted to the casing to communicate with the pressure chamber. A control device controls the amount and speed of extension and retraction of the arm assembly and includes a perforated metallic belt connected to a base end of the innermost cylindrical member.

    摘要翻译: 可伸缩清洁装置包括由伸缩组装的多个圆柱形构件形成的多级可伸缩臂组件,设置在臂组件的最内圆柱形构件的顶端的喷嘴,安装壳体 围绕臂组件的基本中心部分以可旋转地支撑臂组件和整体形成在臂组件的最外圆柱形构件的基端处的壳体,以与组件协作形成压力室。 旋转驱动装置设置在壳体内用于旋转地驱动臂组件。 洗涤液供给软管与喷嘴连接。 压缩空气供给管的一端安装到壳体以与压力室连通。 控制装置控制臂组件的延伸和缩回的量和速度,并且包括连接到最内圆柱形构件的基端的穿孔金属带。