The structure of test tube boxes

A test tube box, including a box cover and a box body, is characterized in that a test tube fixing device is provided between the panel and the box body. A test tube opening is set on one side of the upper open box body, and a cover is set at the test tube opening. The box cover is set on the upper part of the box body and is connected to it in an active manner. The fixing device includes a support plate, a rubber sleeve, an extrusion block, a fixing block, and an insertion hole. The rubber sleeve is placed on the upper part of the test tube insertion hole, and the fixing block fixes the position of the rubber sleeve. The extrusion block is placed on the edge of the rubber sleeve, and one end of the extrusion block is in a circular arc shape. The edge of the circular arc extends out of the insertion hole and does not cover; The upper part of the test tube holder is fixedly connected to the box cover, and the outer edge of the test tube holder is matched with the inner wall of the box and connected to it in a movable manner. A test tube groove is set on the test tube holder, and a mark is set on the inner wall of the test tube groove& Nbsp