Blood drawing auxiliary device for common diseases in pediatric department

The invention discloses a blood drawing auxiliary device for common diseases in the pediatric department. The device comprises a first box body, a bottom plate, a heating layer, a power supply module, a second box body, an upper cover, a plurality of disinfection cotton blocks, a piston mechanism and the like. According to the blood drawing auxiliary device for the common diseases in the pediatric department, when blood drawing queuing is carried out in the laboratory department, a patient puts a limb to be subjected to blood drawing into the device before blood drawing, a switch assembly can be closed by buckling the first box body, a piston pushes the disinfection cotton blocks in place, and the heating layer starts to heat, so that the blood drawing part is heated while the blood drawing part is disinfected, and the vein blood vessel is expanded and exposed; preparation before puncture is carried out by utilizing the queuing time, when the puncture of the patient is carried out, the used disinfection cotto