Bedroom bed with adjustable backrest

The bedroom bed with the adjustable backrest comprises a bed board and bed legs arranged at the bottom of the bed board, one side of the bed board is rotationally connected with a rotating shaft, the outer surface of the rotating shaft is fixedly connected with a backrest board, the bottom of the bed board is rotationally connected with a threaded rod, the outer surface of the threaded rod is in threaded connection with a threaded sleeve, and the threaded sleeve is fixedly connected with the backrest board. The outer surface of the rotating shaft is provided with a curved sliding groove, the inner surface of the curved sliding groove is connected with a sliding block in a sliding mode, and the threaded sleeve is connected with the sliding block through a connecting rod. According to the bedroom bed with the adjustable backrest, a threaded rod is rotated to enable a threaded sleeve to move along the threaded rod, the threaded sleeve drives a sliding block to move along a curved sliding groove, the sliding bloc