An expandable and collapsible support device for multiple use enables attaining an expanded open state for use or return to a compact closed state in mere seconds. The device includes an accordion-style frame that expands laterally from a compact closed state to an expanded open state for use, and a material support cover forming the top of the device and attachable to the frame to provide a support surface above ground level for the device.

An expandable and collapsible support device for multiple use enables attaining an expanded open state for use or return to a compact closed state in mere seconds. The device includes an accordion-style frame that expands laterally from a compact closed state to an expanded open state for use, and a material support cover forming the top of the device and attachable to the frame to provide a support surface above ground level for the device.

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.

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.

An expandable and collapsible support device for multiple use enables attaining an expanded open state for use or return to a compact closed state in mere seconds. The device includes an accordion-style frame that expands laterally from a compact closed state to an expanded open state for use, and a material support cover forming the top of the device and attachable to the frame to provide a support surface above ground level for the device.

An expandable and collapsible support device for multiple use enables attaining an expanded open state for use or return to a compact closed state in mere seconds. The device includes an accordion-style frame that expands laterally from a compact closed state to an expanded open state for use, and a material support cover forming the top of the device and attachable to the frame to provide a support surface above ground level for the device.

The invention discloses a self locking folding bedstead, which comprises two transverse rods and self locking cross mechanisms. The self locking cross mechanism comprises a shearing mechanism, two second connecting rods and two third connecting rods, and the shearing mechanism comprises two first connecting rods. One end of the second connecting rod can be rotatably connected to the transverse rod, the other end can be rotatably connected to the first connecting rod, the third connecting rod can be rotatably connected to the second connecting rod, and the third connecting rod can be rotatably connected to the other first connecting rod. The shearing mechanism, two second connecting rods and two third connecting rods cooperate to form two sets of symmetrically arranged hinge four connecting rods mechanism. The self locking cross mechanism is provided with a limiting mechanism to limit the maximum angle of deployment, and the angle of the opening facing downward formed by the two third connecting rods of the self locking cross mechanism at the maximum deployment angle is greater than 180 degrees. It has the following advantages: the mechanism can be kept in the self locking state, so that the bed width and bed height are fixed, so that the bed surface can be tightened, stable and non-dumping, comfortable to use.

The invention discloses a self locking folding bedstead, which comprises two transverse rods and self locking cross mechanisms. The self locking cross mechanism comprises a shearing mechanism, two second connecting rods and two third connecting rods, and the shearing mechanism comprises two first connecting rods. One end of the second connecting rod can be rotatably connected to the transverse rod, the other end can be rotatably connected to the first connecting rod, the third connecting rod can be rotatably connected to the second connecting rod, and the third connecting rod can be rotatably connected to the other first connecting rod. The shearing mechanism, two second connecting rods and two third connecting rods cooperate to form two sets of symmetrically arranged hinge four connecting rods mechanism. The self locking cross mechanism is provided with a limiting mechanism to limit the maximum angle of deployment, and the angle of the opening facing downward formed by the two third connecting rods of the self locking cross mechanism at the maximum deployment angle is greater than 180 degrees. It has the following advantages: the mechanism can be kept in the self locking state, so that the bed width and bed height are fixed, so that the bed surface can be tightened, stable and non-dumping, comfortable to use.

A foldable bed frame includes a plurality of support assemblies and a plurality of foldable assemblies, the support assembly includes a support pillar and a slidable component, the slidable component is slidably connected to the support pillar, the foldable assembly includes two connection rods intersecting with each other, the two connection rods of a same foldable assembly are located between two adjacent support pillars. An inflatable bed includes a bed body, an inflatable pump, a connection assembly and the foldable bed frame, the inflatable pump is mounted in the interior of the bed body.

A foldable bed frame includes a plurality of support assemblies and a plurality of foldable assemblies, the support assembly includes a support pillar and a slidable component, the slidable component is slidably connected to the support pillar, the foldable assembly includes two connection rods intersecting with each other, the two connection rods of a same foldable assembly are located between two adjacent support pillars. An inflatable bed includes a bed body, an inflatable pump, a connection assembly and the foldable bed frame, the inflatable pump is mounted in the interior of the bed body.