Disclosed are connectors and collapsible bed frames. A collapsible bed frame includes first and second frame units disposed side by side. Each of the first and second frame units comprises a plurality of bar units with adjacent bar units rotatably connected with each other. A collapsible bed frame also includes an inner lateral bar unit disposed between the first and second frame units, and rotatably connected with the first and second frame units. During contraction and expansion, the first frame unit, the second frame unit and the inner lateral bar unit remain substantially on a first plane defined by a top surface of the collapsible bed frame when it is expanded.

A frame and a selectably attachable platform and a selectably attachable head-foot module where only one of the selectably attachable platform and the selectably attachable head-foot module is combined to the frame at a time.

A frame and a selectably attachable platform and a selectably attachable head-foot module where only one of the selectably attachable platform and the selectably attachable head-foot module is combined to the frame at a time.

Disclosed are connectors and collapsible bed frames. A collapsible bed frame includes lateral and longitudinal bar units. Between each of two adjacent lateral bar units, a first longitudinal bar unit is disposed at a first side of the collapsible bed frame and a second longitudinal bar unit is disposed at a second side of the collapsible bed frame. The first and second longitudinal bar units and the two adjacent lateral bar units are rotatably connected with each other by connectors that enable the collapsible bed frame to contract and expand while the lateral and longitudinal bar units are connected with each other.

A frame and a selectably attachable platform and a selectably attachable head-foot module where only one of the selectably attachable platform and the selectably attachable head-foot module is combined to the frame at a time.

A frame and a selectably attachable platform and a selectably attachable head-foot module where only one of the selectably attachable platform and the selectably attachable head-foot module is combined to the frame at a time.

This folding cot has a frame including a first rail member and a second rail member, a sheet material coupled to the frame and extending between the first and second rail members thereof, and a plurality of foldable leg assemblies where each leg assembly being pivotally connected to the first and second rail members, and wherein each leg assembly further includes a first leg pivotally coupled to a second leg. There is a tension spring having a first end attached to the first leg and a second end attached to the second leg.

This folding cot has a frame including a first rail member and a second rail member, a sheet material coupled to the frame and extending between the first and second rail members thereof, and a plurality of foldable leg assemblies where each leg assembly being pivotally connected to the first and second rail members, and wherein each leg assembly further includes a first leg pivotally coupled to a second leg. There is a tension spring having a first end attached to the first leg and a second end attached to the second leg.

A folding bed frame that includes four vertical faces: two ends and two sides. Each face is formed by two slanting bars that are cross hinged together. The upper and lower ends of adjacent slanting bar sets are hinged together to form the whole frame structure. The two vertical faces are corresponding or symmetric, and each includes two sets of slanting bar sets that are hinged through to middle sections of the upper and lower angle plates. There is a vertical rod part on the cross-hinging point of each set of slanting bar set, and its movable position is set by a slide bushing. There is a barrier that is on the cross-hinging point of one of the slanting bars. The barrier can contact the upper part vertical bar, and form two support points with the slide bushing for the vertical bar part.

A folding bed frame that includes four vertical faces: two ends and two sides. Each face is formed by two slanting bars that are cross hinged together. The upper and lower ends of adjacent slanting bar sets are hinged together to form the whole frame structure. The two vertical faces are corresponding or symmetric, and each includes two sets of slanting bar sets that are hinged through to middle sections of the upper and lower angle plates. There is a vertical rod part on the cross-hinging point of each set of slanting bar set, and its movable position is set by a slide bushing. There is a barrier that is on the cross-hinging point of one of the slanting bars. The barrier can contact the upper part vertical bar, and form two support points with the slide bushing for the vertical bar part.