Double-floating-ball float switch detection device

The utility model discloses a detection device for a double-floating-ball float switch. The detection device comprises a supporting base; the two supporting plates are arranged on the two sides of the supporting base, and supporting grooves are formed in the two supporting plates correspondingly; the sliding plate unit comprises four sliding plates, a plurality of arc-shaped clamping grooves are formed in the upper portion of each sliding plate at intervals, and the two ends of each sliding plate extend into the supporting grooves; a front sliding plate group and a rear sliding plate group are respectively formed between the front sliding plate and the rear sliding plate through connecting rods; the linkage unit is arranged on the lower portion of the sliding plate unit and comprises a pull rod and a link plate, the outer end of the pull rod extends out of the supporting base and is provided with a pull head, the inner end of the pull rod is hinged to the link plate, the link plate is hinged to the rear slidi