Electric bed

Abstract

Disclosed is an electric bed, which includes: a base bed frame, which is horizontally disposed; at least one adjustable sub-frame, which is rotatably connected to the base bed frame and is rotatable between a horizontal position and a lifting position; a drive device, which is capable of driving the at least one adjustable sub-frame to rotate; and a plurality of bed planks, which are independent from each other and include at least one fixed bed plank and at least one adjustable bed plank. The electric bed further includes a plurality of quick assembly devices disposed on the base bed frame and the adjustable sub-frame for connecting the fixed bed plank to the base bed frame and fixing the adjustable bed plank to the adjustable sub-frame.

What is claimed is: 
     
         1 . An electric bed, comprising:
 a base bed frame, which is horizontally disposed; at least one adjustable sub-frame, which is rotatably connected to the base bed frame and is rotatable between a horizontal position and a lifting position; a drive device, which is capable of driving the at least one adjustable sub-frame to rotate; and a plurality of bed planks, which are independent from each other and include at least one fixed bed plank and at least one adjustable bed plank, wherein the electric bed further comprises a plurality of quick assembly devices disposed on the base bed frame and the adjustable sub-frame for connecting the fixed bed plank to the base bed frame and fixing the adjustable bed plank to the adjustable sub-frame.   
     
     
         2 . The electric bed according to  claim 1 , wherein the quick assembly devices are groove-shaped members having a groove shape complementary to a shape of an edge of each of the plurality of bed planks for fixing the plurality of bed planks in the groove-shaped members. 
     
     
         3 . The electric bed according to  claim 2 , wherein the groove-shaped members are provided thereon with mounting holes for auxiliary mounting elements to thread therethrough and into the plurality of bed planks. 
     
     
         4 . The electric bed according to  claim 3 , wherein the auxiliary mounting elements are bolts. 
     
     
         5 . The electric bed according to  claim 1 , wherein the base bed frame and the at least one adjustable sub-frame each are provided thereon with a drive device fixation element for connecting the drive device. 
     
     
         6 . The electric bed according to  claim 5 , wherein the drive device fixation element is a lug piece that is provided thereon with a fixation hole for fixing an end of the drive device. 
     
     
         7 . The electric bed according to  claim 1 , comprising two adjustable sub-frames including a head frame and a leg frame, the head frame and the leg frame being separated by the at least one fixed bed plank disposed in a middle of the base bed frame and being capable of rotating and lifting in opposite directions. 
     
     
         8 . The electric bed according to  claim 7 , further comprising a foot bed plank disposed at an end of the base bed frame, the foot bed plank being away from the head frame and being configured to be fixed relative to the base bed frame or to flip with the leg frame by the quick assembly devices. 
     
     
         9 . The electric bed according to  claim 1 , wherein the plurality of bed planks are wooden boards or composite boards on which grainy paper is attached. 
     
     
         10 . The electric bed according to  claim 1 , wherein the drive device is a pushrod motor.