Laboratory water sample sampling device for environmental monitoring

The invention discloses a laboratory water sample sampling device for environmental monitoring, relates to the technical field of sampling equipment, and mainly aims to solve the problem that samplessampled by a multi-layer sampling device are easy to mix. The sampling device comprises a water sampling barrel, a plurality of partition plates are arranged on the outer side wall of the connecting rod pipe; the interior of the water sampling barrel is divided into a plurality of sampling cavities by the partition plates, a water inlet hole is formed in the outer wall of each sampling cavity, anannular groove is formed in the outer wall of the water sampling barrel, a rotary sealing ring sleeve which rotates on the annular groove in a sealed mode is installed in the annular groove, and a lifting rod is further arranged on the upper end face of the top cover body. According to the device, a plurality of sampling chambers in the water sampling barrel can be communicated with the outside byutilizing the rotating act