Carrier slide-bar device in arc motion

A carrier slide-bar device in arc motion, comprising:

• a first slide bar, assembled with a first sliding member and a first driving band, two ends of the first driving band being fixedly connected to the first slide bar, the first sliding member being pivotally provided with a first driving wheel and two first idle wheels, the first driving wheel being driven by a first power source to rotate, the first driving band passing through one of the two first idle wheels and passing through the first driving wheel and then being wound on the other of the two first idle wheels, and the first sliding member being provided with a cylindrical bar;
• a second slide bar, assembled with a second sliding member and a second driving band, two ends of the second driving band being fixedly connected to the second slide bar, the second sliding member being pivotally provided with a second driving wheel and two second idle wheels, the second driving wheel being driven by a second power source to rotate, the second driving band passing through one of the two second idle wheels and passing through the second driving wheel and then being wound on the other of the two second idle wheels, and the second sliding member being provided with a pivot bar;
• a third slide bar on which a carrier is mounted, the third slide bar being assembled with a carrier seat and a third driving band, two ends of the third driving band being fixedly connected to the third slide bar, the carrier seat being pivotally provided with a third driving wheel and two third idle wheels, the third driving wheel being driven by a third power source to rotate, the third driving band passing through one of the two third idle wheels and passing through the third driving wheel and then being wound on the other of the two third idle wheels, and the cylindrical bar and the pivot bar being respectively pivotally connected to the bottom of the third slide bar.