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1. A swimming pool sewage suction machine, comprising a base, a control system, a battery assembly, a driving wheel assembly, a sealing box, a water pump assembly, a collecting box, a top cover assembly, a brush assembly and a charging device, wherein the control system is positioned inside the sealing box, the charging device is arranged on the base and is electrically connected to the control system inside the sealing box, the battery assembly is arranged inside the sealing box and is electrically connected to the control system, the brush assembly is arranged on a bottom of the base, the swimming pool sewage suction machine has an X axis, a Y axis and a Z axis at a center along the length direction, width direction and height direction respectively, wherein the swimming pool sewage suction machine further comprises a collision plate assembly, a collision return assembly, a rotary rod assembly, a magnetic induction piece and a Hall plate, wherein the sealing box is arranged on a middle part of the bottom of the base, the driving wheel assembly and the water pump assembly are connected to the sealing box respectively and are electrically connected to the control system, the interior of the base is divided into an inner ring water distribution bin and an outer ring water distribution bin through the collecting box, a gas-liquid circulation hole is further defined in both a front end and a rear end of the bottom of the base and communicated with the outer ring water distribution bin, a sewage suction opening communicated with the inner ring water distribution bin is defined on a bottom of the collecting box, a sewage inlet corresponding to the sewage suction opening is further defined on the bottom of the base, the inner ring water distribution bin is annular, a middle part of the collecting box is provided with an up-down through annular docking base and is sleeved on the water pump assembly, a filter screen is arranged on a side wall of the annular docking base, an opening is defined a top part of the collecting box, and the top cover assembly is rotationally connected to the base and covers the opening on the top part of the collecting box, the collision plate assembly is arranged on an edge of the base and extends into the base, the collision return assembly is arranged inside the base and provides a restoring force for the collision plate assembly, the rotary rod assembly is rotationally connected inside the base, one end of the rotary rod assembly is connected to the collision plate assembly, the magnetic induction piece is arranged on the other end of the rotary rod assembly, the Hall plate is arranged inside the sealing box and cooperates with the magnetic induction piece, and the Hall plate is electrically connected to the control system.
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