Efficient solar heating device with good anti-freezing effect

The invention relates to an efficient solar heating device with a good anti-freezing effect. The device comprises a bottom plate, two water tanks and at least two heat collecting pipes, the water tanks are fixed to the bottom plate, the heat collecting pipes are evenly distributed between the two water tanks in the direction parallel to the bottom plate, the two ends of each heat collecting pipe are fixed to the two water tanks respectively, the two water tanks communicate with each other through the heat collecting pipes, and a cleaning mechanism is arranged on each heat collecting pipe. Auxiliary mechanisms are arranged at the tops of the two water tanks, each cleaning mechanism comprises a cleaning rod and two rotating components, the cleaning rods are parallel to the heat collecting pipes, the cleaning rods abut against the heat collecting pipes, and the two rotating components of each cleaning mechanism are arranged at the two ends of the corresponding heat collecting pipe respectively. According to the