Test tube rack

The utility model discloses a test tube rack which comprises a first support and a second support matched with the first support, the first support and the second support are respectively provided with a first opening and a second opening matched with a test tube, the test tube penetrates through the first opening or the second opening and then is placed on the test tube rack, and the first support and the second support are connected to define a cavity. The first support and the second support can move relatively. According to the test tube rack, the size of the test tube rack can be changed through relative movement of the first bracket and the second bracket, so that the size of the test tube rack can be adjusted according to the quantity of the placed test tubes when the test tubes are not fully placed, and the size of the test tube rack can be changed according to the quantity of the placed test tubes. 本实用新型公开一种试管架，包括：第一支架以及和第一支架匹配的第二支架，第一支架和第二支架上分别设有与试管匹配的第一开口和第二开口，试管穿过第一开口或第二开口后放置在试管架上，第一支架和第二支架连接且围成一空