Circulating water spraying structure of rain test box

The invention discloses a rain test box circulating water spraying structure which comprises a machine body, a placing frame is fixedly connected in the machine body, a clamping rod is slidably connected to the placing frame, a fastening bolt is in threaded connection to the clamping rod, a heating lamp is embedded in the inner wall of the upper end of the machine body, and a spraying assembly is arranged in the machine body. And a swing assembly is arranged in the machine body. According to the rain test device, the spraying assembly is arranged, in the rain test process, after primary spraying is completed, when a heating lamp is used for simulating the solarization effect, water on the surface of a test article can be evaporated, part of water absorbed by the test article can be evaporated to dryness, and meanwhile, a heat absorption plate absorbs heat emitted by the heating lamp; therefore, the gas in the heat conduction shell is heated and expanded, the heat conduction sleeve is driven ...