Deep water body sampling device for water environment monitoring

The invention belongs to the technical field of water environment monitoring equipment, and particularly relates to a deep water body sampling device for water environment monitoring. The device comprises a main body, a shell used for sealing the lower end space of the main body is arranged on the outer side of the main body, and a cable used for driving the main body to move is arranged at the upper end of the main body. The main body is connected with the reel through the cable, the cable is lowered to sample the deep water body, at the moment, the pulling rope is pulled up to drive the shell to be recycled to seal the space at the lower end of the main body, and the water body can be stored in the shell to complete sampling, so that the sampling requirement of the deep water body is met, and the accuracy of detection data is improved; the pulling rope drives the shell to ascend, so that an annular clamping plate extrudes a guide slope to be slidably connected into an annular clamping groove, and at the mom