Layered sampling device suitable for different water depths

The utility model belongs to the technical field of equipment for collecting water samples of water bodies, and particularly relates to a stratified sampling device suitable for different water depths, which comprises a supporting mechanism and a plurality of water taking mechanisms positioned on the supporting mechanism, the supporting mechanism comprises a basic connecting rod and a plurality of auxiliary connecting rods sequentially connected to the basic connecting rod. The water taking mechanism comprises a sampling bottle; the sealing plug is movably mounted at a bottle opening of the sampling bottle and is used for blocking the bottle opening of the sampling bottle; the connecting assembly is connected with the sealing plugs on the sampling bottles; wherein the connecting assembly is suitable for driving the sealing plugs to seal or open the corresponding bottle openings, and water samples of a plurality of preset water taking layers can be collected at the same time at a time. 实用新型属于水体水样采集用设备技术领域，具体涉及