Chemical component standardized sample placing support device

The utility model discloses a chemical component standardized sample placing support device, relates to the technical field of test tube placing supports, aims to solve the problem of test tube sample storage, and comprises a pair of supports and a connecting plate, the opposite sides of the pair of supports are connected through the connecting plate, and the connecting plate is connected with the supports through the connecting plate. Corresponding cross-shaped sliding grooves are formed in the middles of the supports respectively, the upper end and the lower end in each cross-shaped sliding groove are fixedly connected with one end of a sliding rod respectively, and the pair of sliding rods is provided with a set of evenly-distributed cross-shaped through grooves. The limiting holes of the upper L-shaped plate and the lower L-shaped plate are matched with the corresponding supporting plates, so that test tubes filled with different steel samples can be placed, if the test tubes are short, the test tubes can