Device for simulating water circulation of sponge city

The utility model belongs to the technical field of test equipment, and relates to a sponge city water circulation simulation device which comprises a test bed, a test tank, a water outlet, a diversion trench, a supporting net and four electric push rods. The nozzle is arranged at the upper part of the test bed and is connected with the test bed through a supporting assembly; the rainwater collecting assembly is arranged on the side face of the test bed, is close to the water outlet and the flow guide groove, is connected with the water outlet and the flow guide groove and is used for collecting surface runoff and seepage water of the vegetation buffer zone and metering the runoff quantity and the seepage quantity; the water circulation assembly is arranged on one side of the rainwater collection assembly and connected with the rainwater collection assembly and the spray head. According to the utility model, the supporting net, the nozzle, the rainwater collection assembly and the water circulation assembly a