Water bath case having lifting function and provided with test tube rack

The invention relates to the technical field of water bath cases, in particular to a water bath case having a lifting function and provided with a test tube rack. The water bath case comprises a case body and the test tube rack and further comprises a test tube rack lifting device, wherein the test tube rack lifting device comprises two inverted-U-shaped lifting frames, the two lifting frames are symmetrically distributed on two sides of the case body, case walls of two sides of the case body are located in openings of the lifting frames, and the test tube rack is located between the two lifting frames and connected and fixed with the two lifting frames; the lifting device further comprises spring butt plates and locating shafts which are connected and fixed with outer side frame walls of the lifting frames, each locating shaft is inserted into and penetrates through the outer side frame wall of the corresponding lifting frame from the outer part of one spring butt plate, the end part of the locating shaft is