Energy-saving spray volume metering device for automobile rain drop test

The invention relates to an energy-saving spray volume metering device for an automobile rain drop test. The device comprises a measuring bracket and a collected rain measuring mechanism arranged on the measuring bracket, wherein roller wheels are arranged at the bottom of the measuring bracket. The device further comprises an electric control box, wherein the electric control box is provided with a signal receiver, an amplifier and a display instrument, the collected rain measuring mechanism comprises a drain pipe which is vertically arranged on the measuring bracket and a rain collecting funnel which is arranged above the drain pipe, and a drain valve and a wireless tele-transmission flowmeter are further arranged at one side of the bottom of the drain pipe sequentially. Compared with the prior art, the device has the advantages that the structure is simple, economical and practical, the spray volume can be online measured in real time, the repeatability is good, the accuracy is high, no zero drift exists, and the spray volume of a rain drop test room can be accurately metered.