Sealed colorimetric tube

• Main Authors: XIA JUNZE, SHAO ZHIHAO, YU WEIWEI, LIN CONGYONG, CHI YEYAN, XIE YIHAN
• Format: Patent
• Language: Chinese; English
• Published: 07.01.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The utility model relates to a sealed colorimetric tube which comprises a colorimetric tube, a colorimetric tube plug, gauze, a cotton thread and a sealing ring, the sealing ring is divided into a fixed section and a rotating section which are connected along the axial direction, and the rotating section can rotate around the axis relative to the fixed ring; the cotton thread penetrates through the sealing ring, and two ends are respectively connected with the fixed section and the rotating section; a connecting piece is hinged to the peripheral face of the rotating section, a plurality of protruding blocks are arranged on the fixed section along the peripheral face, and the positions of the protruding blocks are all matched with the connecting piece. Cotton threads can be conveniently wound on the rotating end of the rotating sealing ring, the connecting piece is connected with the protruding block on the fixed end for fixing, the colorimetric tube is tightly wrapped by the gauze, and gas in the colorimetric