Bridge type sand sucker

The utility model provides a bridge type sand sucker and relates to the field of sand suckers. Comprising a pool body, a bridge body is fixedly installed on the upper surface of the pool body, a first supporting frame is fixedly installed on the lower surface of the bridge body, a moving device is installed on the inner side of the first supporting frame, a supporting rod is fixedly installed on the inner side of the first supporting frame, and the side face of the supporting rod is sleeved with a sliding block; a second supporting frame is fixedly installed on the side face of the sliding block. According to the bridge type sand suction machine, through cooperative use of the first screws, the supporting plate and the sand suction pump, the first screws can rotate, meanwhile, transmission wheels on the first screws can be driven by the first screws to drive a belt to rotate, and the other first screw is driven by the belt to rotate; the two first screws drive the supporting plate to move up and down, and the