Sampler

An elastic sealing piece is located between an outer sleeve and a sampling cylinder, after sampling of the sampler is finished, an operator applies force to a pushing part, the pushing part pushes the elastic sealing piece to axially extend out of a gap, and the elastic sealing piece extends out of the gap under the action of a guide conical cylinder. The lower end parts of the elastic sealing pieces are relatively closed to close the lower end opening of the sampling barrel, so that samples in the sampling barrel are prevented from being leaked outside; when the elastic sealing element is used for sampling, the gap between the sampling cylinder and the outer sleeve cannot generate resistance to sample introduction, after sampling is finished, the elastic sealing element axially extends out to form a structure for sealing the port of the sampling cylinder, a sample in the sampling cylinder cannot be influenced, and the sampling device is simple in structure, easy to carry and convenient to operate on site. 本实