Fecha de publicación: 03/01/2023 Fuente: WIPO "circular economy" The utility model discloses a water quality sampling detection analyzer, and particularly relates to the technical field of water quality detection, the water quality sampling detection analyzer comprises a water storage tank, a water inlet pipeline connected with the water storage tank, a sinking plate connected with the water inlet pipeline and an analyzer positioned in the water storage tank, a rotating shaft is rotatably arranged between the two connecting plates, winding rollers are fixedly connected to the two ends of the rotating shaft, positioning round blocks are fixedly connected to one sides of the two winding rollers, first teeth are arranged on the outer surfaces of the two positioning round blocks, rotating round blocks are fixedly connected to one sides of the two positioning round blocks, and the rotating round blocks are fixedly connected to the other sides of the two positioning round blocks. And traction ropes are arranged on the outer surfaces of the two winding rollers. Through mutual cooperation of first teeth and second teeth, a user can more conveniently fix the position of the sinking plate, and meanwhile, due to the arrangement of two traction ropes, the situation that the sinking plate excessively deviates to one side when the sinking plate is folded, and consequently winding is inconvenient is avoided.