Energy-saving car washing tank

The invention discloses an energy-saving car washing tank in the technical field of concrete pole pre-embedded foundation structures, which comprises an inlet platform, a car washing tank and a car washing platform, the car washing tank is located between the inlet platform and the car washing platform and is connected with the inlet platform and the car washing platform through ramps, the left side and the right side of the car washing tank are provided with convex arc-shaped side walls, and the arc-shaped side walls are connected with the inlet platform and the car washing platform through ramps. The bottom face of the car washing table is designed to have a certain gradient to drain water towards the side edge of the car washing groove, the arc-shaped side wall is provided with a plurality of grooves and check blocks of different sizes, the bottom face of the car washing groove is provided with a plurality of bottom plate steps and flip bucket bodies at intervals in the front-back direction, the flip bucke