Closed liquid sampling device

The utility model belongs to the technical field of liquid sample sampling device, specific saying so relates to a closed liquid sampling device, mainly the closed liquid sampling device in order to provide a novel structure, effectual assurance workman's sample safety, this liquid sampling device includes the airtight sampling box body, upper portion at the airtight sampling box body is providedwith open -close plate, inside at the airtight sampling box body is provided with the sampling bottle, upper portion at the airtight sampling box body is provided with the sample cell, the sample cellis linked together through the direct sampling bottle with internal of airtight sampling box of sample connection, still be provided with the sample valve on the inside sample cell of the airtight sampling box body, side at the airtight sampling box body is provided with transparent viewing window, still is provided with the handle hole in transparent viewing window's lower part, the effectual sampling precision who guara