Bed tail lifting device

The utility model relates to a bed tail lifting device which comprises a bed body, a supporting rod arranged at the bottom of the bed body and a height adjusting assembly, the height adjusting assembly comprises a supporting leg and an outer sleeve, one end of the supporting leg is inserted into the outer sleeve in a sliding mode, the other end of the supporting leg extends out of the outer sleeve and is connected with the supporting rod, and a power piece used for driving the supporting leg to slide is arranged in the outer sleeve. The supporting legs can slide up and down, the height of the bed tail can be adjusted according to medical needs, a patient is made to be in a head-low-foot-high-position state, and leakage of cerebrospinal fluid is reduced; the outer sleeve is horizontally placed on the ground in a surface contact mode, the contact face between the outer sleeve and the ground is increased, and compared with wheels, the stability of the bed body is improved, and secondary injury to a patient is no