Sampling device

The utility model discloses a sampling device which comprises a first fixing block, the top of the first fixing block is fixedly connected with a traction rope, the inner wall of the first fixing block is rotatably connected with a screen drum, and the inner wall of the screen drum is slidably connected with a balancing weight. Through the arrangement of the traction rope, the first fixed clamping block, the screen drum and the balancing weight, the balancing weight brings the sampling equipment into the water bottom to sample water resources in a water source, so that the problem that the sampling equipment can only perform sampling on the water side is effectively solved, the condition that a subsequent detection result deviates is effectively avoided, and the sampling efficiency is improved. The pulling rope avoids the situation that the equipment sinks into the water to cause the loss of a sampled sample, the reliability of the equipment is improved, the coverage of the screen drum effectively prevents aq