Patent Grant
12011093
This application claims the benefit of Chinese Patent Application No. 201910750474.0, filed Aug. 14, 2019, which is incorporated herein by reference in its entirety.
The present disclosure relates to the field of furniture, and specifically to a bed frame.
Foldable beds have become popular furniture products. However, the folding function of the existing foldable beds is usually not ideal, and they may lack sufficient rigidity and stability. Further, since existing bed frames are sold as a whole after the completion of assembly at the factory, consumers can use and store the bed frames only by folding and unfolding the bed frames, but cannot detach or dis-assemble elements of the bed frame. Thus, existing folding bed frames tend to be bulky, requiring excessive storage space and transportation costs.
Accordingly, improved folding bed frames are needed.
A main object of the present disclosure is to provide a bed frame enabling a user to quickly and effectively fold the bed frame. The space occupied by the folded bed frame is small. The folding process is relatively simple and easy to implement, the bed frame exhibits larger strength and better stability and can satisfy the user's many demands.
An aspect of the present disclosure provides a bed frame, comprising:
According to a further embodiment of the invention, the bed frame further comprises a locking mechanism for locking the main body sections relative to the intermediate section when the main body sections rotate to the folded or unfolded position in the vertical plane.
According to a further embodiment of the invention, the bed frame further comprises four connecting rods comprising two left connecting rods extending between the left longitudinal support bar and the intermediate longitudinal support bar and two right connecting rods extending between the right longitudinal support bar and the intermediate longitudinal support bar,
According to a further embodiment of the invention, in any two adjacent bushings, one bushing is provided with a first alignment hole, a ball end leaf spring with a protrusion is disposed in the first alignment hole, the ball end leaf spring is configured to extend out of the first alignment hole under action of an elastic force and retract back into the first alignment hole when subjected to a pressure, the other the bushing is nested around a preceding the bushing, a second alignment hole is disposed on a side face of the other bushing opposite to the first alignment hole, the second alignment hole is configured in a way that when the second alignment hole aligns with the protrusion, the protrusion can extend out under the action of elasticity, automatically enter the second alignment hole and thereby lock the two adjacent bushings relative to one another.
According to a further embodiment of the invention, the bed frame further comprises:
According to a further embodiment of the invention, when the sliding sleeves slide toward each other along the intermediate longitudinal support bar, the bed frame is gradually folded until the bed frame gets into the folded state in which the left longitudinal support bar, the right longitudinal support bar, the intermediate longitudinal support bar and the connecting rods abut against one another; when the sliding sleeves slide away from each other along the intermediate longitudinal support bar, the bed frame is gradually unfolded until the bed frame gets into a state in which the respective connecting rods are perpendicular to the left longitudinal support bar, the right longitudinal support bar and the intermediate longitudinal support bar, respectively.
According to a further embodiment of the invention, the intermediate longitudinal support bar is provided with a pin hole at positions close to its end portions and middle portion respectively, a pin is disposed in the pin hole, and the pin is configured to extend out of the pin hole under the action of an elastic force and retract back into the pin hole when subjected to pressure.
According to a further embodiment of the invention, a receiving hole is disposed on a side of the sliding sleeve opposite to the pin hole, wherein the receiving hole is configured in a way that when the receiving hole is aligned with the pin, the pin can extend out under the action of its elasticity, and automatically enter the receiving hole to lock the sliding sleeve on the intermediate longitudinal support bar.
According to a further embodiment of the invention, the pin holes at the end portions of the intermediate longitudinal support bar are positioned in a way that the connecting rods are perpendicular to the intermediate longitudinal support bar when the connecting rods are locked on the intermediate longitudinal support bar; the pin hole at the middle portion of the intermediate longitudinal support rod is positioned in a way that when the connecting rods are locked, the connecting rods and the intermediate longitudinal support bar abut against one another side by side.
According to a further embodiment of the invention, the pin is a square pin or a round pin.
According to a further embodiment of the invention, the pin holes are provided on an upper surface and/or a lower surface of the intermediate longitudinal support bar.
According to a further embodiment of the invention, the bracket is mounted on the sliding sleeve, and the bracket is provided with a pivot shaft located on both lateral sides of the sliding sleeve and extending in a vertical direction, and the connecting rod is pivotally connected to the bracket via the pivot shaft.
According to a further embodiment of the invention, the bracket comprises an upper plate mounted on an upwardly facing surface of the sliding sleeve and a lower plate fixedly mounted on a downwardly facing surface of the sliding sleeve, both lateral sides of the upper plate and lower plate respectively extend out of the sliding sleeve to form cantilevers, and the pivot shafts are connected between the cantilevers on the same side of the upper plate and lower plate.
According to a further embodiment of the invention, the upper plate comprises two horizontal engagement plates which are respectively connected to two pivot shafts located on both lateral sides of the sliding sleeve, the engagement plates are in a sector shape and provided with a gear structure on an arcuate edge thereof, the gear structures of the two upper plates connected to one sliding sleeve face each other and can mesh with each other, thereby enabling synchronous rotation of the two connecting rods connected to the sliding sleeve.
According to a further embodiment of the invention, an end of the connecting rod connected to the sliding sleeve has an upper side plate and a lower side plate which extend in the horizontal direction and face each other, and the pivot shaft is located between the upper side plate and the lower side plate,
According to a further embodiment of the invention, the upper side plate is formed as a partially circular shape, an edge of the circular shape is formed as a gear structure, a rack extending in the longitudinal direction is disposed on both lateral upper edges of the sliding sleeve respectively, the gear structures of two connecting rods connected to one sliding sleeve can respectively mesh with respective racks so that the two connecting rods connected to the sliding sleeve can rotate synchronously.
According to a further embodiment of the invention, the left longitudinal support bar, the right longitudinal support bar and the intermediate longitudinal support bar respectively comprise two main body sections and an intermediate section connected between the two main body sections, the main body sections and the intermediate section are connected via a connecting sheet, a support bar pivot shaft is mounted on the connecting sheet, the two main body sections are configured to be capable of rotating relative to each other about their respective support bar pivot shafts in a vertical plane relative to the intermediate section so that the bed frame is folded or unfolded in the vertical plane.
According to a further embodiment of the invention, the bed frame further comprises a locking mechanism for locking the main body sections relative to the intermediate section when the main body sections rotate to the folded or unfolded position in the vertical plane.
According to a further embodiment of the invention, the connecting rod comprises a plurality of bushings which are nested one inside another so that the connecting rod is telescopic in its extension direction.
According to a further embodiment of the invention, in any two adjacent bushings, one bushing is provided with a first alignment hole, a ball end leaf spring with a protrusion is disposed in the first alignment hole, the ball end leaf spring is configured to extend out of the first alignment hole under action of an elastic force and retract back into the first alignment hole when subjected to a pressure, the other the bushing is nested around a preceding bushing, a second alignment hole is disposed on a side face of the other bushing opposite to the first alignment hole, the second alignment hole is configured in a way that when the second alignment hole aligns with the protrusion, the protrusion can extend out under the action of elasticity, automatically enter the second alignment hole and thereby lock the two adjacent bushings relative to one another.
According to a further embodiment of the invention, the bed frame is configured to be engageable with a tongue member for mounting a headboard or bedhead member, the tongue member comprises a tongue, an upwardly open slot is provided at the end of the left longitudinal support bar and right longitudinal support bar, and the slot is configured to receive the tongue.
According to a further embodiment of the invention, the left longitudinal support bar, the right longitudinal support bar, and the intermediate longitudinal support bar are respectively provided with downwardly extending legs at both ends and in the middle.
In one embodiment, the legs are also pivotally connected to respective longitudinal support bars, the legs are rotatable and foldable relative to the respective longitudinal support bars, and in the folded state the legs abut against the respective longitudinal support bars side by side.
Another aspect of the present disclosure provides a bed frame, comprising:
According to a further embodiment of the invention, when the sliding sleeves slide toward each other along the left longitudinal support bar or right longitudinal support bar, the bed frame is gradually folded until the bed frame gets into the folded state in which the left longitudinal support bar, the right longitudinal support bar, the intermediate longitudinal support bar and the connecting rods abut against one another; when the sliding sleeves slide away from each other along the left longitudinal support bar or right longitudinal support bar, the bed frame is gradually unfolded until the bed frame gets into a state in which the respective connecting rods are perpendicular to the left longitudinal support bar, the right longitudinal support bar and the intermediate longitudinal support bar, respectively.
According to a further embodiment of the invention, a pin hole is disposed on the left longitudinal support bar or right longitudinal support bar at positions close to its end portions and middle portion and at a transition position between the end portions and the middle portion, respectively, a pin is disposed in the pin hole, and the pin is configured to extend out of the pin holes under the action of an elastic force and retract back into the pin holes when subjected to pressure.
According to a further embodiment of the invention, a receiving hole is disposed on a side of the sliding sleeve opposite to the pin hole, wherein the receiving hole is configured in a way that when the receiving hole is aligned with the pin, the pin can extend out under the action of its elasticity, and automatically enter the receiving hole to lock the sliding sleeve on the corresponding left longitudinal support bar or right longitudinal support bar.
According to a further embodiment of the invention, the pin holes at the end portions of the left longitudinal support bar or right longitudinal support bar are positioned in a way that the connecting rods are perpendicular to the intermediate longitudinal support bar when the connecting rods are locked on the left longitudinal support bar or right longitudinal support bar; the pin hole at the middle portion of left longitudinal support bar or right longitudinal support bar is positioned in a way that when the connecting rods are locked, the connecting rods and the intermediate longitudinal support bar abut against one another side by side; the pin hole at a transition position of left longitudinal support bar or right longitudinal support bar is positioned in a way that when the connecting rods are locked, an angle between the connecting rods and the intermediate longitudinal support bar is an acute angle.
According to a further embodiment of the invention, the pin is a square pin or a round pin.
According to a further embodiment of the invention, the pin holes are provided on an upper surface and/or a lower surface of the left longitudinal support bar or the right longitudinal support bar.
According to a further embodiment of the invention, the bracket is mounted on the sliding sleeve, and the bracket is provided with a pivot shaft located on both lateral sides of the sliding sleeve and extending in a vertical direction, and the connecting rod is pivotally connected to the bracket via the pivot shaft.
According to a further embodiment of the invention, the bracket comprises an upper plate mounted on an upwardly facing surface of the sliding sleeve and a lower plate fixedly mounted on a downwardly facing surface of the sliding sleeve, both lateral sides of the upper plate and lower plate respectively extend out of the sliding sleeve to form cantilevers, and the pivot shafts are connected between the cantilevers on the same side of the upper plate and lower plate.
According to a further embodiment of the invention, the upper plate comprises two horizontal engagement plates which are respectively connected to two pivot shafts located on both lateral sides of the sliding sleeve, the engagement plates are in a sector shape and provided with a gear structure on an arcuate edge thereof, the gear structures of the two upper plates connected to one sliding sleeve face each other and can mesh with each other, thereby enabling synchronous rotation of the two connecting rods connected to the sliding sleeve.
According to a further embodiment of the invention, an end of the connecting rod connected to the sliding sleeve has an upper side plate and a lower side plate which extend in the horizontal direction and face each other, and the pivot shaft is located between the upper side plate and the lower side plate, and
According to a further embodiment of the invention, the upper side plate is formed as a partially circular shape, an edge of the circular shape is formed as a gear structure, a rack extending in the longitudinal direction is disposed on both lateral upper edges of the sliding sleeve respectively, the gear structures of two connecting rods connected to one sliding sleeve can respectively mesh with respective racks so that the two connecting rods connected to the sliding sleeve can rotate synchronously.
According to a further embodiment of the invention, the left longitudinal support bar, the right longitudinal support bar and the intermediate longitudinal support bar respectively comprise two main body sections and an intermediate section connected between the two main body sections, the main body sections and the intermediate section are connected via a connecting sheet, a support bar pivot shaft is mounted on the connecting sheet, the two main body sections are configured to be capable of rotating relative to each other about their respective support bar pivot shafts in a vertical plane relative to the intermediate section so that the bed frame is folded or unfolded in the vertical plane.
According to a further embodiment of the invention, the bed frame further comprises a locking mechanism for locking the main body sections relative to the intermediate section when the main body sections rotate to the folded or unfolded position in the vertical plane.
According to a further embodiment of the invention, the connecting rod comprises a plurality of bushings which are nested one inside another so that the connecting rod is telescopic in its extension direction.
According to a further embodiment of the invention, in any two adjacent bushings, one bushing is provided with a first alignment hole, a ball end leaf spring with a protrusion is disposed in the first alignment hole, the ball end leaf spring is configured to extend out of the first alignment hole under action of an elastic force and retract back into the first alignment hole when subjected to a pressure, the other the bushing is nested around a preceding the bushing, a second alignment hole is disposed on a side face of the other bushing opposite to the first alignment hole, the second alignment hole is configured in a way that when the second alignment hole aligns with the protrusion, the protrusion can extend out under the action of elasticity, automatically enter the second alignment hole and thereby lock the two adjacent bushings relative to one another.
According to a further embodiment of the invention, the bed frame is configured to be engageable with a tongue member for mounting a headboard, the tongue member comprises a tongue, an upwardly open slot is provided at the end of the left longitudinal support bar and right longitudinal support bar, and the slot is configured to receive the tongue.
According to a further embodiment of the invention, the left longitudinal support bar, the right longitudinal support bar, and the intermediate longitudinal support bar are respectively provided with downwardly extending legs at both ends and in the middle.
In one embodiment, the legs are also pivotally connected to respective longitudinal support bars, the legs are rotatable and foldable relative to the respective longitudinal support bars, and in the folded state the legs abut against the respective longitudinal support bars side by side.
A further aspect of the present disclosure provides a bed frame, comprising:
According to a further embodiment of the invention, the additional links comprise two additional links, and the two additional links are located on the same side relative to the intermediate longitudinal support bar; or
According to a further embodiment of the invention, the additional links comprise two additional links, and the two additional links are located on different sides relative to the intermediate longitudinal support bar, and one ends of the two additional links are respectively connected to opposing ends of the intermediate longitudinal support bar.
According to a further embodiment of the invention, the additional links comprise four additional links
According to a further embodiment of the invention, when the sliding sleeves slide toward each other along the intermediate longitudinal support bar, the bed frame is gradually folded until the bed frame gets into the folded state in which the left longitudinal support bar, the right longitudinal support bar, the intermediate longitudinal support bar and the connecting rods abut against one another; when the sliding sleeves slide away from each other along the intermediate longitudinal support bar, the bed frame is gradually unfolded until the bed frame gets into a state in which the respective connecting rods are perpendicular to the left longitudinal support bar, the right longitudinal support bar and the intermediate longitudinal support bar, respectively.
According to a further embodiment of the invention, the intermediate longitudinal support bar is provided with a pin hole at positions close to its end portions and middle portion respectively, a pin is disposed in the pin hole, and the pin is configured to extend out of the pin hole under the action of an elastic force and retract back into the pin hole when subjected to pressure.
According to a further embodiment of the invention, a receiving hole is disposed on a side of the sliding sleeve opposite to the pin hole, wherein the receiving hole is configured in a way that when the receiving hole is aligned with the pin, the pin can extend out under the action of its elasticity, and automatically enter the receiving hole to lock the sliding sleeve on the intermediate longitudinal support bar.
According to a further embodiment of the invention, the pin holes at the end portions of the intermediate longitudinal support bar are positioned in a way that the connecting rods are perpendicular to the intermediate longitudinal support bar when the connecting rods are locked on the intermediate longitudinal support bar; the pin hole at the middle portion of the intermediate longitudinal support rod is positioned in a way that when the connecting rods are locked, the connecting rods and the intermediate longitudinal support bar abut against one another side by side.
According to a further embodiment of the invention, the pin is a square pin or a round pin.
According to a further embodiment of the invention, the pin holes are provided on an upper surface and/or a lower surface of the intermediate longitudinal support bar.
According to a further embodiment of the invention, the bracket is mounted on the sliding sleeve, and the bracket is provided with a pivot shaft located on both lateral sides of the sliding sleeve and extending in a vertical direction, and the connecting rod is pivotally connected to the bracket via the pivot shaft.
According to a further embodiment of the invention, the bracket comprises an upper plate mounted on an upwardly facing surface of the sliding sleeve and a lower plate fixedly mounted on a downwardly facing surface of the sliding sleeve, both lateral sides of the upper plate and lower plate respectively extend out of the sliding sleeve to form cantilevers, and the pivot shafts are connected between the cantilevers on the same side of the upper plate and lower plate.
According to a further embodiment of the invention, the upper plate comprises two horizontal engagement plates which are respectively connected to two pivot shafts located on both lateral sides of the sliding sleeve, the engagement plates are in a sector shape and provided with a gear structure on an arcuate edge thereof, the gear structures of the two upper plates connected to one sliding sleeve face each other and can mesh with each other, thereby enabling synchronous rotation of the two connecting rods connected to the sliding sleeve.
According to a further embodiment of the invention, an end of the connecting rod connected to the sliding sleeve has an upper side plate and a lower side plate which extend in the horizontal direction and face each other, and the pivot shaft is located between the upper side plate and the lower side plate, and
the bracket includes a bearing frame and a retaining plate, the bearing frame is fixedly mounted on a lower side of the sliding sleeve and extending laterally relative to the sliding sleeve to be supported below the lower side plate, and the retaining plate is positioned above the lower side plate to achieve limitation of the end of the connecting rod connected to the sliding sleeve in the vertical direction.
According to a further embodiment of the invention, the upper side plate is formed as a partially circular shape, an edge of the circular shape is formed as a gear structure, a rack extending in the longitudinal direction is disposed on both lateral upper edges of the sliding sleeve respectively, the gear structures of two connecting rods connected to one sliding sleeve can respectively mesh with respective racks so that the two connecting rods connected to the sliding sleeve can rotate synchronously.
According to a further embodiment of the invention, the left longitudinal support bar, the right longitudinal support bar and the intermediate longitudinal support bar respectively comprise two main body sections and an intermediate section connected between the two main body sections, the main body sections and the intermediate section are connected via a connecting sheet, a support bar pivot shaft is mounted on the connecting sheet, the two main body sections are configured to be capable of rotating relative to each other about their respective support bar pivot shafts in a vertical plane relative to the intermediate section so that the bed frame is folded or unfolded in the vertical plane.
According to a further embodiment of the invention, the bed frame further comprises a locking mechanism for locking the main body sections relative to the intermediate section when the main body sections rotate to the folded or unfolded position in the vertical plane.
According to a further embodiment of the invention, the connecting rod comprises a plurality of bushings which are nested one inside another so that the connecting rod is telescopic in its extension direction.
According to a further embodiment of the invention, in any two adjacent bushings, one bushing is provided with a first alignment hole, a ball end leaf spring with a protrusion is disposed in the first alignment hole, the ball end leaf spring is configured to extend out of the first alignment hole under action of an elastic force and retract back into the first alignment hole when subjected to a pressure, the other the bushing is nested around a preceding the bushing, a second alignment hole is disposed on a side face of the other bushing opposite to the first alignment hole, the second alignment hole is configured in a way that when the second alignment hole aligns with the protrusion, the protrusion can extend out under the action of elasticity, automatically enter the second alignment hole and thereby lock the two adjacent bushings relative to one another.
According to a further embodiment of the invention, the bed frame is configured to be engageable with a tongue member for mounting a headboard, the tongue member comprises a tongue, an upwardly open slot is provided at the end of the left longitudinal support bar and right longitudinal support bar, and the slot is configured to receive the tongue.
According to a further embodiment of the invention, the left longitudinal support bar, the right longitudinal support bar, and the intermediate longitudinal support bar are respectively provided with downwardly extending legs at both ends and in the middle.
In one embodiment, the legs are also pivotally connected to respective longitudinal support bars, the legs are rotatable and foldable relative to the respective longitudinal support bars, and in the folded state the legs abut against the respective longitudinal support bars side by side.
A further aspect of the present disclosure provides a bed frame, comprising:
According to a further embodiment of the invention, the additional links comprise two additional links, and the two additional links are located on the same side relative to the intermediate longitudinal support bar; or
According to a further embodiment of the invention, the additional links comprise two additional links, and the two additional links are located on different sides relative to the intermediate longitudinal support bar, and one ends of the two additional links are respectively connected to opposing ends of the intermediate longitudinal support bar.
According to a further embodiment of the invention, the additional links comprise four additional links
According to a further embodiment of the invention, when the sliding sleeves slide toward each other along the left longitudinal support bar or right longitudinal support bar, the bed frame is gradually folded until the bed frame gets into the folded state in which the left longitudinal support bar, the right longitudinal support bar, the intermediate longitudinal support bar and the connecting rods abut against one another; when the sliding sleeves slide away from each other along the left longitudinal support bar or right longitudinal support bar, the bed frame is gradually unfolded until the bed frame gets into a state in which the respective connecting rods are perpendicular to the left longitudinal support bar, the right longitudinal support bar and the intermediate longitudinal support bar, respectively.
According to a further embodiment of the invention, the left longitudinal support bar or right longitudinal support bar is provided with a pin hole at positions close to its end portions and middle portion respectively and at a transition position between the end portions and the middle portion, respectively, a pin is disposed in the pin hole, and the pin is configured to extend out of the pin hole under the action of an elastic force and retract back into the pin hole when subjected to pressure.
According to a further embodiment of the invention, a receiving hole is disposed on a side of the sliding sleeve opposite to the pin hole, wherein the receiving hole is configured in a way that when the receiving hole is aligned with the pin, the pin can extend out under the action of its elasticity, and automatically enter the receiving hole to lock the sliding sleeve on the left longitudinal support bar or right longitudinal support bar.
According to a further embodiment of the invention, the pin holes at the end portions of the left longitudinal support bar or right longitudinal support bar are positioned in a way that the connecting rods are perpendicular to the intermediate longitudinal support bar when the connecting rods are locked on the left longitudinal support bar or right longitudinal support bar; the pin hole at the middle portion of left longitudinal support bar or right longitudinal support bar is positioned in a way that when the connecting rods are locked, the connecting rods and the intermediate longitudinal support bar abut against one another side by side; the pin hole at the transition position of left longitudinal support bar or right longitudinal support bar is positioned in a way that when the connecting rods are locked, an angle between the connecting rods and the intermediate longitudinal support bar is an acute angle.
According to a further embodiment of the invention, the pin is a square pin or a round pin.
According to a further embodiment of the invention, the pin holes are provided on an upper surface and/or a lower surface of the left longitudinal support bar or the right longitudinal support bar.
According to a further embodiment of the invention, the bracket is mounted on the sliding sleeve, and the bracket is provided with a pivot shaft located on both lateral sides of the sliding sleeve and extending in a vertical direction, and the connecting rod is pivotally connected to the bracket via the pivot shaft.
According to a further embodiment of the invention, the bracket comprises an upper plate mounted on an upwardly facing surface of the sliding sleeve and a lower plate fixedly mounted on a downwardly facing surface of the sliding sleeve, both lateral sides of the upper plate and lower plate respectively extend out of the sliding sleeve to form cantilevers, and the pivot shafts are connected between the cantilevers on the same side of the upper plate and lower plate.
According to a further embodiment of the invention, the upper plate comprises two horizontal engagement plates which are respectively connected to two pivot shafts located on both lateral sides of the sliding sleeve, the engagement plates are in a sector shape and provided with a gear structure on an arcuate edge thereof, the gear structures of the two upper plates connected to one sliding sleeve face each other and can mesh with each other, thereby enabling synchronous rotation of the two connecting rods connected to the sliding sleeve.
According to a further embodiment of the invention, an end of the connecting rod connected to the sliding sleeve has an upper side plate and a lower side plate which extend in the horizontal direction and face each other, and the pivot shaft is located between the upper side plate and the lower side plate, and
the bracket includes a bearing frame and a retaining plate, the bearing frame is fixedly mounted on a lower side of the sliding sleeve and extending laterally relative to the sliding sleeve to be supported below the lower side plate, and the retaining plate is positioned above the lower side plate to achieve limitation of the end of the connecting rod connected to the sliding sleeve in the vertical direction.
According to a further embodiment of the invention, the upper side plate is formed as a partially circular shape, an edge of the circular shape is formed as a gear structure, a rack extending in the longitudinal direction is disposed on both lateral upper edges of the sliding sleeve respectively, the gear structures of two connecting rods connected to one sliding sleeve can respectively mesh with respective racks so that the two connecting rods connected to the sliding sleeve can rotate synchronously.
According to a further embodiment of the invention, the left longitudinal support bar, the right longitudinal support bar and the intermediate longitudinal support bar respectively comprise two main body sections and an intermediate section connected between the two main body sections, the main body sections and the intermediate section are connected via a connecting sheet, a support bar pivot shaft is mounted on the connecting sheet, the two main body sections are configured to be capable of rotating relative to each other about their respective support bar pivot shafts in a vertical plane relative to the intermediate section so that the bed frame is folded or unfolded in the vertical plane.
According to a further embodiment of the invention, the bed frame further comprises a locking mechanism for locking the main body sections relative to the intermediate section when the main body sections rotate to the folded or unfolded position in the vertical plane.
According to a further embodiment of the invention, the connecting rod comprises a plurality of bushings which are nested one inside another so that the connecting rod is telescopic in its extension direction.
According to a further embodiment of the invention, in any two adjacent bushings, one bushing is provided with a first alignment hole, a ball end leaf spring with a protrusion is disposed in the first alignment hole, the ball end leaf spring is configured to extend out of the first alignment hole under action of an elastic force and retract back into the first alignment hole when subjected to a pressure, the other the bushing is nested around a preceding bushing, a second alignment hole is disposed on a side face of the other bushing opposite to the first alignment hole, the second alignment hole is configured in a way that when the second alignment hole aligns with the protrusion, the protrusion can extend out under the action of elasticity, automatically enter the second alignment hole and thereby lock the two adjacent bushings relative to one another.
According to a further embodiment of the invention, the bed frame is configured to be engageable with a tongue member for mounting a headboard, the tongue member comprises a tongue, an upwardly open slot is provided at the end of the left longitudinal support bar and right longitudinal support bar, and the slot is configured to receive the tongue.
According to a further embodiment of the invention, the left longitudinal support bar, the right longitudinal support bar, and the intermediate longitudinal support bar are respectively provided with downwardly extending legs at both ends and in the middle.
In one embodiment, the legs are also pivotally connected to respective longitudinal support bars, the legs are rotatable and foldable relative to the respective longitudinal support bars, and in the folded state the legs abut against the respective longitudinal support bars side by side.
In the bed frame provided by the present disclosure, the longitudinal support bars are set to include a plurality of sections which are pivotally connected. Such arrangement can enable quick and effective folding of the bed frame. The space occupied by the folded bed frame is small. The folding process is relatively simple and easy to implement, and the bed frame can satisfy many demands of the user.
In addition, the bed frame of the present disclosure is configured to be detachable, which not only facilitates the manufacturer to transport in a small transportation space, thereby saving transportation costs, but also allows users to easily disassemble and reassemble the bed frame to save storage space.
Reference may be made to preferred embodiments shown in the figures to enable better understanding of the above and other objects, features, advantages and functions of the present disclosure. The same reference numerals in the figures denote the same parts. Those skilled in the art should appreciate that the figures are intended to schematically illustrate the preferred embodiments of the present disclosure, and not intended to impose any limitations to the scope of the present disclosure. All parts in the figures are not drawn to scale.
Specific embodiments of the present disclosure will now be described in detail with reference to the figures. Those skilled in the art can implement other manners of the present disclosure on the basis of the preferred embodiments, and other manners also fall within the scope of the present disclosure.
Referring to
Referring to
It should be appreciated that extension directions of the various components mentioned in the present disclosure (for example, “a transverse direction”, “a longitudinal direction” and “a vertical direction”) all refer to the extensions directions of the components in the case that the bed frame is placed in a horizontal plane, so directional terms mentioned in the text should be understood to be relative terms rather than absolute terms. Furthermore, it can be understood that both “transverse direction” and “longitudinal direction” are horizontal directions, and they together define a horizontal plane, and the vertical direction is a direction perpendicular to the horizontal plane.
Further referring to
The bed frame is configured to be foldable in a vertical plane so as to reduce the space occupied in the folded state. Referring to
A first through hole extending and running through transversely is disposed at an end of each of the main body sections adjacent to the intermediate section 12, the connecting sheet 14 is provided with a second through hole on a side connected to the main body section. When the second through hole is aligned with the first through hole, a support bar pivot shaft 15 can run through the first through hole and second through hole so that the two main body sections can rotate relative to each other about their respective support bar pivot shafts 15 in a vertical plane relative to the intermediate section 12, so that the bed frame is folded or unfolded in the vertical plane.
More preferably, a length of the intermediate section 12 may be set equal to that of the legs 8 (which will be described in detail later), so that the bed frame, after being folded in the vertical surface, may form a relatively standard rectangle in the vertical surface, as shown in
Preferably, one end of each connecting rod 5 is pivotally attached to an end of the left longitudinal support bar 1 or right longitudinal support bar 2 about a pivot shaft, and the other end of the connecting rod is pivotally attached to a corresponding bracket about a pivot shaft. As such, when the sliding sleeve 4 slides along the intermediate longitudinal support bar 3, the end of the connecting rod 5 connected to the corresponding bracket moves along with the sliding sleeve 4, thereby driving the connecting rod 5 to move in a horizontal plane and thereby transversely unfolding or folding the bed frame.
Specifically, when the two sliding sleeves 4 slide toward each other along the intermediate longitudinal support bar 3, the bed frame is gradually folded until it gets into a folded state in which the left longitudinal support bar 1, the right longitudinal support bar 2 and the intermediate longitudinal support bar 3 abut against one another side by side, the folded state being shown by
In order to fix the sliding sleeve 4 on the intermediate longitudinal support bar 3 and thereby fix the connecting rods 5, a pin hole is provided on a surface of the intermediate longitudinal support bar 3, an elastic pin is disposed in the pin hole, the pin hole is configured to extend out of the pin hole under the action of an elastic force and retract back into the pin hole when subjected to a pressure, a surface of the sliding sleeve 4 corresponding to the pin hole is provided with a receiving hole 41, and the pin and the receiving hole 41 can engage with each other to lock the sliding sleeve 4. Specifically, the pin hole includes end pin holes and a middle pin hole which respectively receive end pins and a middle pin, and the end pin holes and the middle pin hole are respectively located at the intermediate longitudinal support bar 3 close to its end positions and close to a middle position.
Wherein, the end pin is used to engage with the receiving hole 41 to fix the connecting rod 5 perpendicular to the longitudinal support bar. When the end pin engages with the receiving hole 41, the connecting rod 5 extends transversely, and the bed frame is in the unfolded state as stated above; the middle pin is used to engage with the receiving hole 41 to fix the connecting rod 5 parallel to the longitudinal support bar, and when the middle pin engages with the receiving hole 41, the bed frame is in the folded state as described above.
Preferably, an intermediate pin hole may be provided at an intermediate position between the end pin hole and the middle pin hole to fix the bed frame in a semi-unfolded state, which may be similar to that shown in
More preferably, more pin holes and pins at multiple different positions may be disposed so that the angle between the connecting rods 5 and respective longitudinal support bars gradually changes such that the bed frame can be fixed at different positions to change more sizes. For example, when the bed frame is completely folded in the horizontal plane, it is formed as a single size bed frame; when the bed frame is semi-unfolded in the horizontal plane, it is formed as a twin size bed frame; next, the bed frame may be further unfolded again for many times such that the bed frame is formed as a full size bed frame, a queen size bed frame, a king size bed frame, a California king size bed frame or the like.
Preferably, the pin may be a round pin 61 (as shown in
The arrangement of the connection of the connecting rod 5 to the sliding sleeve 4 may have various implementation modes, and several examples are shown in
In the solution shown in
Then turning to
Further referring to
On the other hand, in order to further adjust the size of the bed frame in the transverse direction, the connecting rod 5 may be arranged to include at least two bushings which are nested one inside the other so that the connecting rod 5 is telescopic in its extension direction. When the bed frame is already in the unfolded state, the size of the bed frame as a whole in the transverse direction can be further adjusted by adjusting the size of an overlapping portion between adjacent bushings.
For example, in the bed frame of
Preferably, the bed frame is also engageable with a tongue member 9 for mounting a headboard, the tongue member 9 comprises a tongue 91, an upwardly open slot 16 is further provided at the end of the left longitudinal support bar 1 and right longitudinal support bar 2, and the tongue 91 can be inserted into the slot 16.
At the same time, in other embodiments not shown, the bed frame may also have other arrangements. For example, it is also possible to arrange the legs 8 below the longitudinal support bars to be foldable, for example to pivotally connect the legs 8 to the longitudinal support bars, the legs 8 being capable of abutting against the respective longitudinal support bars when the legs 8 are folded.
In the present embodiment, two sliding sleeves 4 are disposed spaced apart on both the left longitudinal support bar 1 and right longitudinal support bar 2, and the sliding sleeves 4 are slideable on the longitudinal support bars. Therefore, in the present embodiment, there are a total of four sliding sleeves 4, and the sliding sleeves 4 each are provided with a bracket.
There are still a total of four connecting rods 5, one end of each connecting rod 5 is pivotally attached to the end of the intermediate longitudinal support bar 3 about a pivot shaft, and the other end of the connecting rod 5 is pivotally attached to a corresponding bracket about a pivot shaft.
Wherein, when the sliding sleeve 4 slides along the corresponding longitudinal support bar, one end of the sliding sleeve 4 mounted on the bracket moves along with the sliding sleeve 4, thereby driving the connecting rod 5 to rotate in a horizontal plane, and thereby causing the bed frame to be in an unfolded state or folded state.
Other configurations and arrangements of the present embodiment are similar to those of the previous embodiment, and are not described any longer herein for the sake of simplicity.
In the solutions shown in
In the solution shown in
In another solution, there may be four additional links 56 which are connected one to one with the four connecting rods.
In other embodiments not shown, it is also possible to additionally provide additional links on the basis of the bed frame of the second embodiment. Specifically, the bed frame may further comprise at least two additional links extending between the left longitudinal support bar and the connecting rod or between the right longitudinal support bar and the connecting rod, one end of each additional link is pivotally attached to one end of the left longitudinal support bar or right longitudinal support bar, the other end is pivotally connected to the connecting rod, and, the additional links can be driven to move in the horizontal plane when the connecting rod moves in the horizontal plane.
The additional links may also be arranged in many ways. For example, the additional links may comprise two additional links, and the two additional links are located on the same side relative to the intermediate longitudinal support bar; or the two additional links are located on different sides relative to the intermediate longitudinal support bar.
Preferably, the two additional links are located on different sides relative to the intermediate longitudinal support bar, and one end of each of the two additional links is connected to an opposed end of the intermediate longitudinal support bar.
Or, there are four additional links which may be connected one to one with the four connecting rods.
The provision of the additional links can reinforce the strength of the bed frame; especially when the bed frame is in a semi-unfolded state, the additional links can function to assist in supporting. Moreover, the provision of the additional links can also enable more firm and stable connection between the intermediate longitudinal support bar and the left longitudinal support bar and the right longitudinal support bar.
In the bed frame provided by the present disclosure, the support bars for bearing weight are connected via the connecting rods, the connecting rods are driven to move by enabling an end of the connecting rods to slide on the support bars, thereby achieving the unfolding or folding of the bed frame. Such arrangement can enable quick and effective folding of the bed frame. The space occupied by the folded bed frame is small. The folding process is relatively simple and easy to implement. Furthermore, the bed frame exhibits better strength and stability. In either the unfolded state or folded state, the bed frame can bear a larger weight and can satisfy many demands of the user.
The following are additional embodiments, beginning with embodiment 21 as listed below:
21. A bed frame, comprising:
22. The bed frame according to claim 21, wherein a pin hole is disposed on the left longitudinal support bar or right longitudinal support bar at positions close to its end portions and middle portion, respectively, a pin is disposed in the pin hole, and the pin is configured to extend out of the pin holes under the action of an elastic force and retract back into the pin holes when subjected to pressure.
23. The bed frame according to claim 22, wherein a pin hole is also disposed on a middle position between the end portions and the middle portion, a pin is disposed in the pin hole, and the pin is configured to extend out of the pin holes under the action of an elastic force and retract back into the pin holes when subjected to pressure.
24. The bed frame according to claim 23, wherein a receiving hole is disposed on a side of the sliding sleeve facing the pin hole, wherein the receiving hole is configured in a way that when the receiving hole is aligned with the pin, the pin can extend out under the action of its elasticity, and automatically enter the receiving hole to lock the sliding sleeve on the corresponding left longitudinal support bar or right longitudinal support bar.
25. The bed frame according to claim 24, wherein the pin holes at the end portions of the left longitudinal support bar or right longitudinal support bar are positioned in a way that the connecting rods are perpendicular to the intermediate longitudinal support bar when the connecting rods are locked on the left longitudinal support bar or right longitudinal support bar; the pin hole at the middle portion of left longitudinal support bar or right longitudinal support bar is positioned in a way that when the connecting rods are locked, the connecting rods and the intermediate longitudinal support bar abut against one another side by side; the pin hole at a transition position of left longitudinal support bar or right longitudinal support bar is positioned in a way that when the connecting rods are locked, an angle between the connecting rods and the intermediate longitudinal support bar is an acute angle so that a width of the bed frame is adapted for dimension requirements of a twin size bed.
26. The bed frame according to claim 22, wherein the pin is a square pin or a round pin.
27. The bed frame according to claim 22, wherein the pin holes are provided on an upper surface and/or a lower surface of the left longitudinal support bar or the right longitudinal support bar.
28. The bed frame according to claim 21, wherein the bracket is mounted on the sliding sleeve, and the bracket is provided with a pivot shaft located on both lateral sides of the sliding sleeve and extending in a vertical direction, and the connecting rod is pivotally connected to the bracket via the pivot shaft.
29. The bed frame according to claim 28, wherein the bracket comprises an upper plate mounted on an upwardly facing surface of the sliding sleeve and a lower plate fixedly mounted on a downwardly facing surface of the sliding sleeve, both lateral sides of the upper plate and lower plate respectively extend out of the sliding sleeve to form cantilevers, and the pivot shafts are connected between the cantilevers on the same side of the upper plate and lower plate.
30. The bed frame according to claim 33, wherein the upper plate comprises two horizontal meshing plates which are respectively connected to two pivot shafts located on both lateral sides of the sliding sleeve, the meshing plates are in a sector shape and provided with a gear structure on an arcuate edge thereof, the gear structures of the two upper plates connected to one sliding sleeve face each other and can mesh with each other, thereby enabling synchronous rotation of the two connecting rods connected to the sliding sleeve.
31. The bed frame according to claim 28, wherein an end of the connecting rod connected to the sliding sleeve has an upper side plate and a lower side plate which extend in the horizontal direction and face each other, and the pivot shaft is located between the upper side plate and the lower side plate, and the bracket includes a bearing frame and a retaining plate, the bearing frame is fixedly mounted on a lower side of the sliding sleeve and extending laterally relative to the sliding sleeve to be supported below the lower side plate, and the retaining plate is positioned above the lower side plate to achieve limitation of the end of the connecting rod connected to the sliding sleeve in the vertical direction.
32. The bed frame according to claim 31, wherein the upper side plate is formed as a partially circular shape, an edge of the circular shape is formed as a gear structure, a rack extending in the longitudinal direction is disposed on both lateral upper edges of the sliding sleeve respectively, the gear structures of two connecting rods connected to one sliding sleeve can respectively mesh with respective racks so that the two connecting rods connected to the sliding sleeve can rotate synchronously.
33. The bed frame according to claim 21, wherein the bed frame is configured to be engageable with a tongue member for mounting a headboard, the tongue member comprises a tongue, an upwardly open slot is provided at the end of the left longitudinal support bar and right longitudinal support bar, and the slot is configured to receive the tongue.
34. The bed frame according to claim 21, wherein the left longitudinal support bar, the right longitudinal support bar, and the intermediate longitudinal support bar are respectively provided with downwardly extending legs at both ends and in the middle.
35. The bed frame according to claim 34, wherein the legs are also pivotally connected to respective longitudinal support bars, the legs are rotatable and foldable relative to the respective longitudinal support bars, and in the folded state the legs abut against the respective longitudinal support bars side by side.
36. Abed frame, comprising:
37. The bed frame according to claim 36 wherein
38. The bed frame according to claim 36 wherein the additional links comprise two additional links, and the two additional links are located on different sides relative to the intermediate longitudinal support bar, and one ends of the two additional links are respectively connected to opposing ends of the intermediate longitudinal support bar.
39. The bed frame according to claim 36 wherein the additional links comprise four additional links
40. The bed frame according to claim 36 wherein when the sliding sleeves slide toward each other along the intermediate longitudinal support bar, the bed frame is gradually folded until the bed frame gets into the folded state in which the left longitudinal support bar, the right longitudinal support bar, the intermediate longitudinal support bar and the connecting rods abut against one another; when the sliding sleeves slide away from each other along the intermediate longitudinal support bar, the bed frame is gradually unfolded until the bed frame gets into a state in which the respective connecting rods are perpendicular to the left longitudinal support bar, the right longitudinal support bar and the intermediate longitudinal support bar, respectively.
41. The bed frame according to claim 36, wherein the intermediate longitudinal support bar is provided with a pin hole at positions close to its end portions and middle portion respectively, a pin is disposed in the pin hole, and the pin is configured to extend out of the pin hole under the action of an elastic force and retract back into the pin hole when subjected to pressure.
42. The bed frame according to claim 39, wherein a pin hole is also disposed on a middle position between the end portions and the middle portion, a pin is disposed in the pin hole, and the pin is configured to extend out of the pin holes under the action of an elastic force and retract back into the pin holes when subjected to pressure.
43. The bed frame according to claim 40, wherein a receiving hole is disposed on a side of the sliding sleeve facing the pin hole, wherein the receiving hole is configured in a way that when the receiving hole is aligned with the pin, the pin can extend out under the action of its elasticity, and automatically enter the receiving hole to lock the sliding sleeve on the intermediate longitudinal support bar.
44. The bed frame according to claim 41, wherein the pin holes at the end portions of the intermediate longitudinal support bar are positioned in a way that the connecting rods are perpendicular to the intermediate longitudinal support bar when the connecting rods are locked on the intermediate longitudinal support bar; the pin hole at the middle portion of the intermediate longitudinal support bar is positioned in a way that when the connecting rods are locked, the connecting rods and the intermediate longitudinal support bar abut against one another side by side; the pin hole at the middle position of the intermediate longitudinal support rod is positioned in a way that when the connecting rods are locked, an angle between the connecting rods and the intermediate longitudinal support bar is an acute angle so that a width of the bed frame is adapted for dimension requirements of a twin size bed.
45. The bed frame according to claim 41, wherein the pin is a square pin or a round pin.
46. The bed frame according to claim 41, wherein the pin holes are provided on an upper surface and/or a lower surface of the intermediate longitudinal support bar.
47. The bed frame according to claim 36, wherein the bracket is mounted on the sliding sleeve, and the bracket is provided with a pivot shaft located on both lateral sides of the sliding sleeve and extending in a vertical direction, and the connecting rod is pivotally connected to the bracket via the pivot shaft.
48. The bed frame according to claim 45, wherein the bracket comprises an upper plate mounted on an upwardly facing surface of the sliding sleeve and a lower plate fixedly mounted on a downwardly facing surface of the sliding sleeve, both lateral sides of the upper plate and lower plate respectively extend out of the sliding sleeve to form cantilevers, and the pivot shafts are connected between the cantilevers on the same side of the upper plate and lower plate.
49. The bed frame according to claim 46, wherein the upper plate comprises two horizontal meshing plates which are respectively connected to two pivot shafts located on both lateral sides of the sliding sleeve, the meshing plates are in a sector shape and provided with a gear structure on an arcuate edge thereof, the gear structures of the two upper plates connected to one sliding sleeve face each other and can mesh with each other, thereby enabling synchronous rotation of the two connecting rods.
50. The bed frame according to claim 47, wherein an end of the connecting rod connected to the sliding sleeve has an upper side plate and a lower side plate which extend in the horizontal direction and face each other, and the pivot shaft is located between the upper side plate and the lower side plate, and
51. The bed frame according to claim 48, wherein the upper side plate is formed as a partially circular shape, an edge of the circular shape is formed as a gear structure, a rack extending in the longitudinal direction is disposed on both lateral upper edges of the sliding sleeve respectively, the gear structures of two connecting rods connected to one sliding sleeve can respectively mesh with respective racks so that the two connecting rods connected to the sliding sleeve can rotate synchronously.
52. The bed frame according to claim 36, wherein the bed frame is configured to be engageable with a tongue member for mounting a headboard, the tongue member comprises a tongue, an upwardly open slot is provided at the end of the left longitudinal support bar and right longitudinal support bar, and the slot is configured to receive the tongue.
53. The bed frame according to claim 36, wherein the left longitudinal support bar, the right longitudinal support bar, and the intermediate longitudinal support bar are respectively provided with downwardly extending legs at both ends and in the middle.
54. The bed frame according to claim 53, wherein the legs are also pivotally connected to respective longitudinal support bars, the legs are rotatable and foldable relative to the respective longitudinal support bars, and in the folded state the legs abut against the respective longitudinal support bars side by side.
55. A bed frame, comprising:
56. The bed frame according to claim 55, wherein
57. The bed frame according to claim 56, wherein the additional links comprise two additional links, and the two additional links are located on different sides relative to the intermediate longitudinal support bar, and one ends of the two additional links are respectively connected to opposing ends of the intermediate longitudinal support bar.
58. The bed frame according to claim 55, wherein the additional links comprise four additional links.
59. The bed frame according to claim 55, wherein when the sliding sleeves slide toward each other along the left longitudinal support bar or right longitudinal support bar, the bed frame is gradually folded until the bed frame gets into the folded state in which the left longitudinal support bar, the right longitudinal support bar, the intermediate longitudinal support bar and the connecting rods abut against one another; when the sliding sleeves slide away from each other along the left longitudinal support bar or right longitudinal support bar, the bed frame is gradually unfolded until the bed frame gets into a state in which the respective connecting rods are perpendicular to the left longitudinal support bar, the right longitudinal support bar and the intermediate longitudinal support bar, respectively.
60. The bed frame according to claim 55, wherein he left longitudinal support bar or right longitudinal support bar is provided with a pin hole at positions close to its end portions and middle portion respectively and at a transition position between the end portions and the middle portion, respectively, a pin is disposed in the pin hole, and the pin is configured to extend out of the pin hole under the action of an elastic force and retract back into the pin hole when subjected to pressure.
61. The bed frame according to claim 60, wherein a pin hole is also disposed on a middle position between the end portions and the middle portion, a pin is disposed in the pin hole, and the pin is configured to extend out of the pin holes under the action of an elastic force and retract back into the pin holes when subjected to pressure.
62. The bed frame according to claim 61, wherein a receiving hole is disposed on a side of the sliding sleeve facing the pin hole, wherein the receiving hole is configured in a way that when the receiving hole is aligned with the pin, the pin can extend out under the action of its elasticity, and automatically enter the receiving hole to lock the sliding sleeve on the left longitudinal support bar or right longitudinal support bar.
63. The bed frame according to claim 62, wherein the pin holes at the end portions of the left longitudinal support bar or right longitudinal support bar are positioned in a way that the connecting rods are perpendicular to the intermediate longitudinal support bar when the connecting rods are locked on the left longitudinal support bar or right longitudinal support bar; the pin hole at the middle portion of left longitudinal support bar or right longitudinal support bar is positioned in a way that when the connecting rods are locked, the connecting rods and the intermediate longitudinal support bar abut against one another side by side; the pin hole at a transition position of left longitudinal support bar or right longitudinal support bar is positioned in a way that when the connecting rods are locked, an angle between the connecting rods and the intermediate longitudinal support bar is an acute angle so that a width of the bed frame is adapted for dimension requirements of a twin size bed.
64. The bed frame according to claim 60, wherein the pin is a square pin or a round pin.
65. The bed frame according to claim 60, wherein the pin holes are provided on an upper surface and/or a lower surface of the left longitudinal support bar or the right longitudinal support bar.
66. The bed frame according to claim 55, wherein the bracket is mounted on the sliding sleeve, and the bracket is provided with a pivot shaft located on both lateral sides of the sliding sleeve and extending in a vertical direction, and the connecting rod is pivotally connected to the bracket via the pivot shaft.
67. The bed frame according to claim 66, wherein the bracket comprises an upper plate mounted on an upwardly facing surface of the sliding sleeve and a lower plate fixedly mounted on a downwardly facing surface of the sliding sleeve, both lateral sides of the upper plate and lower plate respectively extend out of the sliding sleeve to form cantilevers, and the pivot shafts are connected between the cantilevers on the same side of the upper plate and lower plate.
68. The bed frame according to claim 67, wherein the upper plate comprises two horizontal meshing plates which are respectively connected to two pivot shafts located on both lateral sides of the sliding sleeve, the meshing plates are in a sector shape and provided with a gear structure on an arcuate edge thereof, the gear structures of the two upper plates connected to one sliding sleeve face each other and can mesh with each other, thereby enabling synchronous rotation of the two connecting rods connected to the sliding sleeve.
69. The bed frame according to claim 66, wherein an end of the connecting rod connected to the sliding sleeve has an upper side plate and a lower side plate which extend in the horizontal direction and face each other, and the pivot shaft is located between the upper side plate and the lower side plate, and
70. The bed frame according to claim 69, wherein the upper side plate is formed as a partially circular shape, an edge of the circular shape is formed as a gear structure, a rack extending in the longitudinal direction is disposed on both lateral upper edges of the sliding sleeve respectively, the gear structures of two connecting rods connected to one sliding sleeve can respectively mesh with respective racks so that the two connecting rods connected to the sliding sleeve can rotate synchronously.
71. The bed frame according to claim 55, wherein the bed frame is configured to be engageable with a tongue member for mounting a headboard, the tongue member comprises a tongue, an upwardly open slot is provided at the end of the left longitudinal support bar and right longitudinal support bar, and the slot is configured to receive the tongue.
72. The bed frame according to claim 55, wherein the left longitudinal support bar, the right longitudinal support bar, and the intermediate longitudinal support bar are respectively provided with downwardly extending legs at both ends and in the middle.
73. The bed frame according to claim 72, wherein the legs are also pivotally connected to respective longitudinal support bars, the legs are rotatable and foldable relative to the respective longitudinal support bars, and in the folded state the legs abut against the respective longitudinal support bars side by side.
The above depictions of various embodiments of the present disclosure are provided to those having ordinary skill in the art for depiction purpose, and are not intended to exclude other embodiments from the present disclosure or limit the present disclosure to a single disclosed embodiment. As described above, various alternatives and modifications of the present disclosure will be apparent to those of ordinary skill in the art. Accordingly, although some alternative embodiments have been described in detail, those having ordinary skill in the art will understand or readily develop other embodiments. The disclosure is intended to cover all alternatives, modifications and variations of the present disclosure described herein, as well as other embodiments falling within the spirit and scope of the present disclosure described herein.
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