Convertible vacuum-blower
    3.
    发明授权
    Convertible vacuum-blower 失效
    可转换真空鼓风机

    公开(公告)号:US4694528A

    公开(公告)日:1987-09-22

    申请号:US886815

    申请日:1986-07-18

    IPC分类号: A47L5/14 B02C18/06

    CPC分类号: A47L5/14

    摘要: A convertible vacuum-blower which includes a housing having an air inlet and an air outlet is disclosed. A motor and an impeller are supported in the housing. The impeller is supported for rotary motion and is driven by the motor. The impeller is in fluid communication with both the air inlet and the air outlet. The air inlet is selectively covered by an apertured, removable air inlet cover. A mechanism removably secures the air inlet cover to the housing. A switch mechanism is carried by the housing and allows the motor to operate when the air inlet is covered, but not when the air inlet is uncovered. A first switch actuator is carried by the air inlet cover for actuating the switch mechanism when the cover is secured to the housing covering the air inlet. A removable vacuum nozzle also includes a second switch actuator for actuating the switch means when the vacuum nozzle is secured to the housing covering the air inlet.

    摘要翻译: 公开了一种包括具有空气入口和空气出口的壳体的敞篷式真空鼓风机。 电机和叶轮支撑在外壳中。 叶轮支撑旋转运动,由电机驱动。 叶轮与空气入口和出气口流体连通。 空气入口由有孔的可拆卸空气入口盖选择性地覆盖。 机构将进气口罩可拆卸地固定在壳体上。 开关机构由壳体承载,并且允许电机在空气入口被覆盖时进行操作,而不是当空气入口未被覆盖时操作。 当盖被固定到覆盖空气入口的壳体时,第一开关致动器由进气盖承载,用于致动开关机构。 可拆卸真空喷嘴还包括第二开关致动器,用于当真空喷嘴固定到覆盖空气入口的壳体时致动开关装置。