Four-fold electric bed

Abstract

A four-fold electric bed is provided, and belongs to the technical field of folding beds. The four-fold electric bed includes a rear supporting frame, a front supporting frame, a front hip bed plate, a rear hip bed plate, a leg bed plate, a footboard, a backrest bed plate, a headboard, a first driving member, and a second driving member. The front hip bed plate and the leg bed plate form a first folding unit, and the rear hip bed plate and the backrest bed plate form a second folding unit. The second folding unit can be folded to a bottom of the first folding unit. The headboard can be folded to a top of the backrest bed plate. The footboard can be folded to a bottom of the leg bed plate.

What is claimed is: 
     
         1 . A four-fold electric bed, comprising a rear supporting frame and a front supporting frame,
 wherein a top of one end of the rear supporting frame is fixedly connected with a rear hip bed plate; a top of one end of the front supporting frame is fixedly connected with a front hip bed plate; the front hip bed plate is hinged with the rear hip bed plate through a first hinge member;   one side of the front hip bed plate that is away from the rear hip bed plate is hinged with a leg bed plate; one side of the leg bed plate that is away from the front hip bed plate is hinged with a footboard through a second hinge member; one side of the rear hip bed plate that is away from the front hip bed plate is hinged with a backrest bed plate; one side of the backrest bed plate that is away from the rear hip bed plate is hinged with a headboard through a third hinge member; a first driving member for driving the backrest bed plate to rotate upwards is arranged at a bottom of the rear hip bed plate; and a second driving member for driving the leg bed plate to rotate upwards is arranged at a bottom of the front hip bed plate.   
     
     
         2 . The four-fold electric bed according to  claim 1 , wherein the front hip bed plate and the leg bed plate form a first folding unit, and the rear hip bed plate and the backrest bed plate form a second folding unit; the second folding unit is folded to a bottom of the first folding unit; the headboard is folded to a top of the backrest bed plate; and the footboard is folded to a bottom of the leg bed plate. 
     
     
         3 . The four-fold electric bed according to  claim 2 , wherein the rear supporting frame comprises two rear supporting rods; the two rear supporting rods are respectively fixed at two ends of the bottom of the rear hip bed plate; a first mounting slot is provided in one end of each rear supporting rod that is away from the rear hip bed plate; rear expansion rods are fixedly mounted in the first mounting slots through two groups of first locking bolts; and first supporting legs are mounted at bottoms of the rear expansion rods through screws. 
     
     
         4 . The four-fold electric bed according to  claim 3 , wherein the first driving member comprises a first linear actuator; a cylinder of the first linear actuator is fixed at the bottom of the rear hip bed plate; a first cross bar is rotatably connected between the two rear supporting rods; two ends of the first cross bar are fixedly connected with first push rods; upper ends of the first push rods are rotatably connected with first rollers; the first rollers are in rolling contact with a bottom of the backrest bed plate; a bottom of one end of the first cross bar is fixedly connected with a first connection base; and an end portion of a piston rod of the first linear actuator is hinged with a lower end of the first connection base. 
     
     
         5 . The four-fold electric bed according to  claim 1 , wherein the front supporting frame comprises two front supporting rods; the two front supporting rods are respectively fixed at two ends of the bottom of the front hip bed plate; a second mounting slot is provided in one end of each front supporting rod that is away from the front hip bed plate; front expansion rods are fixedly mounted in the second mounting slots through two groups of second locking bolts; and second supporting legs are mounted at bottoms of the front expansion rods through screws. 
     
     
         6 . The four-fold electric bed according to  claim 5 , wherein the second driving member comprises a second linear actuator; a cylinder of the second linear actuator is fixed at the bottom of the front hip bed plate; a second cross bar is rotatably connected between the two front supporting rods; two ends of the second cross bar are fixedly connected with second push rods; upper ends of the second push rods are rotatably connected with second rollers; the second rollers are in rolling contact with a bottom of the leg bed plate; a bottom of one end of the second cross bar is fixedly connected with a second connection base; and an end portion of a piston rod of the second linear actuator is hinged with a lower end of the second connection base. 
     
     
         7 . The four-fold electric bed according to  claim 6 , wherein the front expansion rods are hinged with the footboard through first connection plates. 
     
     
         8 . The four-fold electric bed according to  claim 1 , wherein the rear supporting frame and the front supporting frame are both arranged in a splayed manner. 
     
     
         9 . The four-fold electric bed according to  claim 1 , wherein the rear supporting frame and the front supporting frame are staggered. 
     
     
         10 . The four-fold electric bed according to  claim 6 , wherein a first motor slot for accommodating a motor of the first linear actuator is reserved in the bottom of the rear hip bed plate; and a second motor slot for accommodating a motor of the second linear actuator is reserved in the bottom of the front hip bed plate.