| 摘要 |
An underground line fixing bar is provided to prevent access of a mouse by outputting ultrasonic wave of a specific frequency band through an ultrasonic outputting device around an underground line. A rack(10) is installed in an inner wall of an underground tunnel(T) in order to support an underground line(L). A clamp(20) is engaged with the underground line. The clamp includes a first hook, a second hook, and a fixing pin. A clamp transfer device(30) includes a horizontal transfer device and a vertical transfer device. The horizontal transfer device horizontally moves the clamp. The vertical transfer device vertically moves the clamp. A control unit(40) controls operations of a first motor and a second motor of the clamp transfer device. A proximity sensor(60) senses access of a mouse. An ultrasonic outputting device(70) outputs ultrasonic wave of a specific frequency band in order to prevent the access of the mouse. An input unit(50) controls an operation of the control unit. The control unit, the proximity sensor, the ultrasonic outputting device, and the input unit are installed in the rack. |
