Sample storage equipment for drainage basin slope runoff sampling device

The sample storage equipment comprises a tray, an annular frame is connected to the outer edge of the tray, a shaft sleeve is arranged on the outer wall of the top of the tray, a rotating shaft is connected to the inner wall of the shaft sleeve in an inserted mode, and a volute spring is arranged at the bottom end of the rotating shaft; the two ends of the volute spring are arranged on the side wall of the rotating shaft and the inner side wall of the shaft sleeve correspondingly, the outer wall of the top of the rotating shaft is vertically and fixedly connected with a connecting rod, and an induction magnetic brush is arranged at the end of the connecting rod. Different numbers of sampling tanks can be placed on the annular frame according to the sample collection period or collection frequency, the sampling tanks correspond to different discharging ends, the induction magnetic brush rotates to reach the magnetic cover, the corresponding control valves are opened and closed, it is guaranteed that the period