BED FRAME STRUCTURE

Abstract

The bed frame structure, including leg posts and beams. An upper part of each leg post has connection wing plates. Each connection wing plate is quickly assembled/disassembled with an end portion of a respective beam through at least one quick-connect assembly. Each quick-connect assembly has a quick-connect hole and a quick-connect fastener on a respective connection wing plate and the corresponding end portion of the respective beam. No tools are required assembly. Users can achieve connection of a leg post and a beam manually through a corresponding pair of quick-connect hole and quick-connect fastener, such that assembly of the bed frame is easy and effort-saving.

Description

TECHNICAL FIELD

The present invention relates to the technical field of beds, particularly to a bed frame structure.

BACKGROUND OF THE INVENTION

A bed frame generally comprises a bed frame body and bed support legs. The bed frame body is generally rectangular formed by enclosure of two longitudinal bed beams and two lateral bed beams. A plurality of rods or slat frames are installed in the middle of the bed frame to form a support for a bed board or a mattress.

Existing bed frame bodies and bed support legs are usually locked and fixed by fasteners such as screws or bolts, requiring tools for frequent tightening operations. Assembly is therefore complicated and cumbersome, and small parts like screws and bolts may be easily lost, resulting in low efficiency of assembly and disassembly, and thus resulting in poor user's experience.

BRIEF SUMMARY OF THE INVENTION

It is an object of the present invention to provide a bed frame structure which can be assembled and disassembled without using any tools, thus being advantageous in quick and convenient assembly and disassembly.

To obtain the above object, the present invention provides the following technical solutions:

A bed frame structure, comprising a plurality of leg posts and a plurality of beams; a plurality of connection wing plates are provided at an upper portion of each of the plurality of leg posts, and each of the plurality of connection wing plates is capable of being quickly assembled with and disassembled from a corresponding end portion of a respective one of the plurality of beams through at least one quick-connect assembly; each of said at least one quick-connect assembly comprises a quick-connect hole disposed on one of a respective connection wing plate and the corresponding end portion of the respective one of the plurality of beams, and a quick-connect fastener disposed on another one of said respective connection wing plate and the corresponding end portion of the respective one of the plurality of beams.

Further, the plurality of leg posts comprise nine leg posts; the plurality of beams comprise six first beams and six second beams, wherein said first beams are longer than said second beams; the nine leg posts are arranged in a three-by-three array; each of two ends of each of the six first beams is connected to a respective one of two adjacent leg posts adjacent to each other along a longitudinal direction of the bed frame structure through at least one respective quick-connect assembly, and each of two ends of each of the six second beams is connected to a respective one of two adjacent leg posts adjacent to each other along a lateral direction of the bed frame structure through at least one respective quick-connect assembly; a plurality of slats extending along the lateral direction of the bed frame structure are installed between every two adjacent first beams of the six first beams adjacent to each other along the lateral direction of the bed frame structure.

Further, the quick-connect hole comprises an upper hole and a lower hole, wherein the upper hole is larger than the lower hole; a bottom side of the upper hole is in communication with a top side of the lower hole; the quick-connect fastener comprises a stud and a limiting head that extends radially out of an outer end of the stud; an outer diameter of the limiting head is not greater than an inner diameter of the upper hole and not less than an inner diameter of the lower hole; an outer diameter of the stud is not greater than the inner diameter of the lower hole.

Further, the quick-connect hole is an inverted conical shaped hole tapering downwardly from a top side towards a bottom side thereof; the top side of the inverted conical shaped hole is shaped as an upper convex arc, and the bottom side of the inverted conical shaped hole is shaped as a lower convex arc; the quick-connect fastener comprises a stud and a limiting head that extends radially out of an outer end of the stud; an outer diameter of the limiting head is not greater than an inner diameter of the upper convex arc and not less than an inner diameter of the lower convex arc.

Further, the quick-connect hole is a vertically extending rectangular hole; the quick-connect fastener is a vertical limiting plate perpendicular to the corresponding end portion of the respective one of the plurality of beams; a vertical limiting groove is formed at a bottom side of the vertical limiting plate adjacent to the corresponding end portion of the respective one of the plurality of beams; a height and a width of the vertical limiting plate are not greater than a height and a width of the vertically extending rectangular hole, and the vertical limiting groove engages with the respective connection wing plate at a lower side of the vertically extending rectangular hole.

Further, the quick-connect hole is a horizontally extending rectangular hole; the quick-connect fastener is a horizontal limiting plate protruding out from the corresponding end portion of the respective one of the plurality of beams and extending downwardly by an angle with respect to the corresponding end portion of the respective one of the plurality of beams so as to be spaced apart from the corresponding end portion of the respective one of the plurality of beams and therefore define a horizontal limiting groove with respect to the corresponding end portion of the respective one of the plurality of beams; a height and a width of the horizontal limiting plate are not greater than a height and a width of the horizontally extending rectangular hole, and the horizontal limiting groove engages with the respective connection wing plate at a lower side of the horizontally extending rectangular hole.

Further, the quick-connect hole is an insertion slot, and the quick-connect fastener is an insertion tongue.

Further, each of the plurality of connection wing plates is vertically welded and fixed to an outer wall of the upper portion of a respective leg post, and vertically extending along a same axial direction as the respective leg post.

Further, each of the plurality of connection wing plates is vertically arranged on an outer wall of the upper portion of a respective leg post, and vertically extending along a same axial direction as the respective leg post; an inner side edge of each of the plurality of connection wing plates adjacent to the respective leg post is connected to a locking part that engages the outer wall of the respective leg post; the locking part is locked and fixed to at least one locking hole provided on the outer wall of the respective leg post through at least one locking screw; each of two vertical sides of the locking part is connected to a respective one of the plurality of connection wing plates so that two connection wing plates are connected to two vertical sides of the locking part respectively, and the two connection wing plates are circumferentially spaced apart by 90 degrees.

Further, each of the plurality of connection wing plates comprises a fixing plate and a connecting plate parallel and spaced apart from each other; an inner side edge of the fixing plate is connected to an outer wall of the upper portion of a respective leg post; an outer side edge of the fixing plate and an outer side edge of the connecting plate are integrally connected through an arc-shaped connecting section; the quick-connect hole of each of said at least one quick-connect assembly 4 is provided on the connecting plate.

Further, a connecting sleeve is fitted on the upper portion of each of the plurality of leg posts, and on each of the plurality of leg posts, a coupling assembly is provided between the connecting sleeve and a respective leg post; the connecting sleeve has a sleeve hole that penetrates through a top end and a bottom end of the connecting sleeve; the sleeve hole is a tapered hole that tapers upwardly from the bottom end towards the top end of the connecting sleeve; at least one of said plurality of connection wing plates is connected to an outer wall of the connecting sleeve; an annular groove is provided on an outer wall of the upper portion of the respective leg post; the coupling assembly comprises two half-sleeves that detachably connect with each other; an inner wall of the coupling assembly removably engages the outer wall of the respective leg post; an annular rib protrudes from the inner wall of the coupling assembly and engages with the annular groove; an outer wall of the coupling assembly is a tapered wall that corresponds to the sleeve hole; the connecting sleeve sleeves the coupling assembly.

Further, each of the plurality of beams has an irregular or a square cross section, and in case where each of the plurality of beams has a square cross section, each of two end portions of each of the plurality of beams is compressed to form a narrowed opening on one side.

Further, each of the plurality of beams is also provided with a connecting plate on each of two ends of each of the plurality of beams; the connecting plate is fixed at the narrowed opening of each of the plurality of beams; said at least one quick-connect assembly is provided between an outer end portion of the connecting plate and a respective one of the plurality of connection wing plates of a respective leg post.

Further, said at least one quick-connect assembly comprises two quick-connect assemblies, such that the outer end portion of the connecting plate has two quick-connect holes or two quick-connect fasteners vertically spaced apart from each other, and a spacing between the two quick-connect holes or the two quick-connect fasteners is not less than a vertical width of a respective one of the plurality of beams.

Further, a first through hole is provided on each of the plurality of connection wing plates, and a second through hole corresponding to the first through hole is provided on the end portion of each of the plurality of beams; each of the plurality of connection wing plates and the respective one of the plurality of beams are locked together through a hand-tightened bolt and a nut; the hand-tightened bolt passes through the first through hole and the second through hole in sequence.

Further, said at least one quick-connect assembly comprises two quick-connect assemblies arranged vertically spaced apart from each other, and each of the plurality of connecting wing plates and the end portion of the respective one of the plurality of beams are mutually connected through the two quick-connect assemblies; the hand-tightened bolt passes through between the two quick-connect assemblies.

Further, said plurality of leg posts comprise four leg posts; said plurality of beams comprise four beams; the four leg posts are arranged at four corners of the bed frame structure; the four beams are arranged to connect the four leg posts to form a rectangular shaped bed frame structure; each of two ends of each of the four beams is connected to a respect one of the four leg posts through said at least one quick-connect assembly; a plurality of slats extending laterally are arranged between two of the four leg posts which are longitudinally or laterally adjacent to each other.

According to the technical solutions described above, no tools are required during assembly. A user can quickly achieve connection between a leg post and a corresponding beam through a quick-connect hole and a corresponding quick-connect fastener manually without the need for tools, so that assembly of the bed frame structure is easy and effort-saving, thus facilitating self-assembly by the user. After that, slat frames or a plurality of slats are disposed between the beams, and then a mattress is placed on the bed frame structure. The weight of the mattress allows the leg posts and the beams to tightly press against one another to prevent disengagement.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of Embodiment 1 of the present invention;

FIG. 2 is a top view of Embodiment 1 of the present invention;

FIG. 3 illustrates an enlarged perspective view and exploded view of area A in FIG. 1;

FIG. 4 is a first alternative embodiment of the quick-connect assembly of Embodiment 1 of the present invention;

FIG. 5 is a second alternative embodiment of the quick-connect assembly of Embodiment 1 of the present invention;

FIG. 6 is a third alternative embodiment of the quick-connect assembly of Embodiment 1 of the present invention;

FIG. 7 is a fourth alternative embodiment of the quick-connect assembly of Embodiment 1 of the present invention;

FIG. 8 is an alternative configuration of Embodiment 1 of the present invention;

FIG. 9 illustrate a perspective, exploded and top views of a partial structure of Embodiment 2 of the present invention;

FIG. 10 is a schematic view of different assembled status of a leg post and at least one connection wing plate according to Embodiment 2 of the present invention;

FIG. 11 illustrate a perspective and exploded views of a partial structure of Embodiment 3 of the present invention;

FIG. 12 is a top view of a partial structure of Embodiment 3 of the present invention;

FIG. 13 is a sectional view of a partial structure of Embodiment 3 of the present invention;

FIG. 14 is an exploded view of a partial structure of Embodiment 4 of the present invention from different angles;

FIG. 15 illustrate a perspective and an exploded views of a partial structure of Embodiment 5 of the present invention;

FIG. 16 is a schematic view of a beam of Embodiment 5 of the present invention.

FIG. 17 is an exploded view of a partial structure of Embodiment 6 of the present invention.

REFERENCE SIGNS: Bed frame structure 100, leg post 1, locking hole 11, connecting sleeve 12, sleeve hole 121, coupling assembly 13, half-sleeve 131, annular rib 132, annular groove 14, beam 2, long beam 21, short beam 22, platform 23, narrowed opening 24, connecting plate 25, second through hole 26, rivet 27, connection wing plate 3, locking part 31, locking screw 32, fixing plate 33, connecting plate 34, arc-shaped connecting section 35, first through hole 36, quick-connect assembly 4, quick-connect hole 41, upper hole 4111, lower hole 4112, inverted conical shaped hole 412, upper convex arc 4121, lower convex arc 4122, vertically extending rectangular hole 413, horizontally extending rectangular hole 414, insertion slot 415, quick-connect fastener 42, stud 4211, limiting head 4212, vertical limiting plate 423, vertical limiting groove 4231, horizontal limiting plate 424, horizontal limiting groove 4241, insertion tongue 425, slat 5, hand-tightened bolt 61, nut 62, spacing D1, vertical width D2.

DETAILED DESCRIPTION OF THE INVENTION

Embodiment 1

As shown in FIGS. 1 to 3, a bed frame structure 100 according to the present invention comprises a plurality of leg posts 1 and a plurality of beams 2. A plurality of connection wing plates 3 are provided at an upper portion of each of the plurality of leg posts 1, and each of the plurality of connection wing plates 3 is capable of being quickly assembled with and disassembled from a corresponding end portion of a respective one of the plurality of beams 2 through at least one quick-connect assembly 4. Each of said at least one quick-connect assembly 4 comprises a quick-connect hole 41 and a quick-connect fastener 42 disposed on a respective connection wing plate 3 and the end portion of a respective beam 2 respectively.

According to the above technical solutions, during assembly of the bed frame structure 100, without using any tools, a user can manually achieve convenient and rapid connection between a leg post 1 and a beam 2 through a corresponding quick-connect hole 41 and a corresponding quick-connect fastener 42, so that the bed frame can be assembled simply and effortlessly, thereby facilitating self-assembly by users. A plurality of slat frames or slats 5 are placed between the plurality of beams 2, and then a mattress (not shown in the figures) may be placed on the bed frame; a considerable weight of the mattress is capable of pressing against the plurality of leg posts 1 and the plurality of beams 2 to prevent them from disengagement.

Specifically, the bed frame structure 100 in this embodiment comprises nine leg posts 1 of a same height and twelve beams 2. The twelve beams 2 comprise six long beams 21 and six short beams 22. The nine leg posts 1 are arranged in a three-by-three array (a grid consisting of three columns and three rows). Each of two ends of each of the six long beams 21 is connected to a respective one of two adjacent leg posts 1 adjacent to each other along a longitudinal direction of the bed frame structure 100 through said at least one quick-connect assembly 4 between a corresponding connection wing plate 3 of the respective one of the two adjacent leg posts 1 adjacent to each other along the longitudinal direction of the bed frame structure 100 and a corresponding one of the two ends of a respective long beam 21, and each of two ends of each of the six short beams 22 is connected to a respective one of two adjacent leg posts 1 adjacent to each other along a lateral direction of the bed frame structure 100 through said at least one quick-connect assembly 4 between a corresponding connection wing plate 3 of the respective one of the two adjacent leg posts 1 adjacent to each other along the lateral direction of the bed frame structure 100 and a corresponding one of the two ends of a respective short beam 22. A plurality of slats 5 extending along the lateral direction of the bed frame structure 100 are installed between every two adjacent long beams 21 of the six long beams 21 adjacent to each other along the lateral direction of the bed frame structure 100.

In this embodiment, there are a plurality of beams 2 comprising short beams 22 of a shorter length to reduce packaging and transportation costs of the bed frame structure 100. Of course, with reference to FIG. 8, it is also possible to provide only four leg posts 1 and four beams 2, and two of the four beams 2 have a same length, and another two of the four beams 2 have another same length; accordingly, the simplest form of the bed frame structure 100 can be formed.

In this embodiment, the quick-connect hole 41 is provided on each of the plurality of connection wing plates 3 of each of the plurality of leg posts 1. The quick-connect hole 41 comprises an upper hole 4111 and a lower hole 4112, wherein the upper hole 4111 is larger than the lower hole 4112; a bottom side of the upper hole 4111 is in communication with a top side of the lower hole 4112. The quick-connect fastener 42 corresponding to the quick-connect hole 41 is provided at a corresponding end portion of each of the plurality of beams 2. The quick-connect fastener 42 comprises a stud 4211 and a limiting head 4212 that extends radially out of an outer end of the stud 4211. An outer diameter of the limiting head 4212 is not greater than an inner diameter of the upper hole 4111 and not less than an inner diameter of the lower hole 4112; an outer diameter of the stud 4211 is not greater than the inner diameter of the lower hole 4112. During assembly, the quick-connect fastener 42 is aligned with and then inserted into the upper hole 4111, and then moved downward to be limited within the lower hole 4112.

With reference to FIG. 4, the quick-connect hole 41 is an inverted conical shaped hole 412 tapering downwardly from a top side towards a bottom side thereof. The top side of the inverted conical shaped hole 412 is shaped as an upper convex arc 4121, and the bottom side of the inverted conical shaped hole 412 is shaped as a lower convex arc 4122. The quick-connect fastener 42 comprises a stud 4211 and a limiting head 4212 that extends radially out of an outer end of the stud 4211. An outer diameter of the limiting head 4212 is not greater than an inner diameter of the upper convex arc 4121 and not less than an inner diameter of the lower convex arc 4122, so that the limiting head 4212 can be inserted from an upper part of the inverted conical shaped hole 412 and being limited at a lower part of the inverted conical shaped hole 412.

With reference to FIG. 5, the quick-connect hole 41 is a vertically extending rectangular hole 413. The quick-connect fastener 42 is a vertical limiting plate 423 perpendicular to the end portion of a respective beam 2; a vertical limiting groove 4231 is formed at a bottom side of the vertical limiting plate 423 adjacent to the end portion of the respective beam 2. A height and a width of the vertical limiting plate 423 are not greater than a height and a width of the vertically extending rectangular hole 413, and the vertical limiting groove 4231 is configured to engage with a respective connection wing plate 3 at a lower side of the vertically extending rectangular hole 413.

With reference to FIG. 6, the quick-connect hole 41 is a horizontally extending rectangular hole 414. The quick-connect fastener 42 is a horizontal limiting plate 424 protruding out from the end portion of a respective beam 2 and extending downwardly by an angle with respect to the end portion of the respective beam 2 so as to be spaced apart from the end portion of the respective beam 2 and therefore define a horizontal limiting groove 4241 with respect to the end portion of the respective beam 2. A height and a width of the horizontal limiting plate 424 are not greater than a height and a width of the horizontally extending rectangular hole 414, and the horizontal limiting groove 4241 is configured to engage with a respective connection wing plate 3 at a lower side of the horizontally extending rectangular hole 414.

With reference to FIG. 7, the quick-connect hole 41 is an insertion slot 415, and the corresponding quick-connect fastener 42 is an insertion tongue 425.

The various configurations of the quick-connect assembly 4 described above with reference to FIGS. 3-7 are all capable of achieving quick and convenient assembly and disassembly.

In this embodiment, each of the plurality of connection wing plates 3 is vertically welded and fixed to an outer wall of an upper portion of a respective leg post 1, and vertically extending along a same axial direction as the respective leg post 1. With reference to FIG. 2, four of the plurality of leg posts 1 located at four corners of the bed frame structure 100 respectively each has two connection wing plates 3; four of the plurality of leg posts 1 located in the middle of four sides of the bed frame structure 100 respectively each has three connection wing plates 3; a leg post 1 of the plurality of leg posts 1 located in a center of the bed frame structure 100 has four connection wing plates 3; accordingly, quick assembly and disassembly with respective long beam(s) 21 and short beam(s) 22 are facilitated.

As shown in FIG. 3, in this embodiment, each of the plurality of beams 2 is embodied as having an irregular cross section with at least one platform 23 protruding out from a middle of at least one side thereof; a corresponding one of two ends of each of the plurality of slats 5 is rested on a corresponding one of said at least one platform 23 of a respective beam 2; specifically, each of two of the long beams 21 located in the middle of the bed frame structure 100 has two platforms 23 disposed along two longitudinal sides thereof, thereby facilitating the placement of the slats 5 on the two longitudinal sides thereof. Of course, the slats 5 can also be engaged and connected with the plurality of beams 2 according to other prior art connections, which will not be further elaborated here as such connections are not the focus of the technical improvements of the present invention.

Embodiment 2

As shown in FIGS. 9 and 10, the structures of this second embodiment are basically the same as those of Embodiment 1, except in that each of the plurality of connection wing plates 3 has a different structure in this second embodiment that allows each of the plurality of connection wing plates 3 to be detached and replaced.

In this second embodiment, each of the plurality of connection wing plates 3 is also vertically arranged on an outer wall of an upper portion of a respective leg post 1, and vertically extending along a same axial direction as the respective leg post 1. An inner side edge of each of the plurality of connection wing plates 3 adjacent to the respective leg post 1 is connected to a locking part 31 that engages the outer wall of the respective leg post 1. Specifically, in this second embodiment, each of two vertical sides of the locking part 31 is connected to a respective one of the plurality of connection wing plates 3 so that two connection wing plates 3 are connected to two vertical sides of the locking part 31 respectively, and the two connection wing plates 3 are circumferentially spaced apart by 90 degrees. Of course, it is also possible to provide only one connection wing plate 3 on only one of the two vertical sides of the locking part 31.

In this second embodiment, the locking part 31 is locked and fixed to at least one locking hole 11 provided on the outer wall of the respective leg post 1 through at least one locking screw 32. This locking and fixing operation of the locking part 31 is already done at the factory during manufacture; further, four groups of said at least one locking hole 11, wherein one or more locking holes 11 is present in each of the four groups, can be distributed evenly at 90-degree intervals around the outer wall of the respective leg post 1. Specifically, each of four groups of said at least one locking hole 11 comprises two locking holes 11 vertically spaced apart from each other. Thus, with reference to FIG. 10, one or more connection wing plates 3 can be connected to the respective leg post 1 at different positions, thereby adjusting a quantity of connection wing plates 3 on the respective leg post 1 and achieving modular production and reducing production costs.

Embodiment 3

As shown in FIGS. 11 to 13, the structures of this third embodiment are basically the same as those of Embodiment 1, except in that each of the plurality of connection wing plates 3 has a different structure in this third embodiment.

In this third embodiment, each of the plurality of connection wing plates 3 comprises a fixing plate 33 and a connecting plate 34 parallel and spaced apart from each other. An inner side edge of the fixing plate 33 is connected, for example fixed by welding, to an outer wall of an upper portion of a respective leg post 1.

An outer side edge of the fixing plate 33 and an outer side edge of the connecting plate 34 are integrally connected through an arc-shaped connecting section 35. Specifically, the fixing plate 33 and the connecting plate 34 can be formed by bending a single plate.

The quick-connect hole 41 of each of said at least one quick-connect assembly 4 is provided on the connecting plate 34. Thus, with reference to FIG. 12, when a corresponding quick-connect fastener 42 provided at the end portion of a respective one of the plurality of beams 2 is inserted into the quick-connect hole 41, the fixing plate 33 may conceal the quick-connect fastener 42, ensuring the aesthetic appearance of the bed frame structure while also preventing the protruding quick-connect fastener 42 from scratching users causing injuries.

Also, in this third embodiment, a connecting sleeve 12 is also fitted on the upper portion of each of the plurality of leg posts 1, and on each of the plurality of leg posts 1, a coupling assembly 13 is provided between the connecting sleeve 12 and a respective leg post 1.

With reference to FIG. 13, the connecting sleeve 12 has a sleeve hole 121 that penetrates through top end and bottom end of the connecting sleeve 12. The sleeve hole 121 is a tapered hole that tapers upwardly from the bottom end towards the top end of the connecting sleeve 12. At least one of said plurality of connection wing plates 3 is connected to an outer wall of the connecting sleeve 12. An annular groove 14 is provided on an outer wall of the upper portion of the respective leg post 1. The coupling assembly 13 comprises two half-sleeves 131 that detachably connect with each other. An inner wall of the coupling assembly 13 removably engages the outer wall of the respective leg post 1; an annular rib 132 protrudes from the inner wall of the coupling assembly 13 and engages with the annular groove 14. An outer wall of the coupling assembly 13 is a tapered wall that corresponds to the sleeve hole 121. The connecting sleeve 12 sleeves the coupling assembly 13.

By providing the connecting sleeve 12, a top end of the respective leg post 1 is exposed, allowing for connection to a headboard or footboard (not shown in the figures).

Under gravity force or pressure from the corresponding beams 2, the connecting sleeve 12 will be pressed downwardly to be tightly fitted on the coupling assembly 13. Due to the increasing pressure from the connecting sleeve 12 on the outer wall of the coupling assembly 13 resulted from the tapered sleeve hole 121 as the connecting sleeve 12 moves downwardly, the coupling assembly 13 can tightly clamp on the respective leg post 1 so that the annular rib 132 tightly engages the annular groove 14, thereby ensuring the stability of connection between the connecting sleeve 12 and the respective leg post 1.

Embodiment 4

As shown in FIG. 14, the structures of this fourth embodiment are basically the same as those of Embodiment, except that the structures of the plurality of beams 2 in this fourth embodiment are different.

In this fourth embodiment, each of the plurality of beams 2 is a square beam which can save materials while increasing the structural strength of the beams 2, thereby improving the load-bearing capacity of the bed frame structure.

In this fourth embodiment, each of two end portions of each of the plurality of beams 2 is compressed to form a narrowed opening 24 on one side. The quick-connect fastener 42 of each of said at least one quick-connect assembly 4 protrudes from another side, which is a flat side opposite to said one side disposed with the narrowed opening 24, of each of the two end portions of each of the plurality of beams 2. The narrowed opening 24 facilitates convenient assembly.

Embodiment 5

As shown in FIGS. 15 and 16, the structures of this fifth embodiment are basically the same as those of Embodiment 4, except that each of the plurality of beams 2 in this fifth embodiment is also provided with a connecting plate 25 on at least one of two ends of each of the plurality of beams 2.

Specifically, the connecting plate 25 is fixed at the narrowed opening 24 of each of the plurality of beams 2. An inner end of the connecting plate 25 is inserted and fixed inside the narrowed opening 24 by riveting through two rivets 27. Said at least one quick-connect assembly 4 is provided between an outer end portion of the connecting plate 25 and a respective one of the plurality of connection wing plates 3 of a respective leg post 1. In this fifth embodiment, Said at least one quick-connect assembly 4 comprises two quick-connect assemblies 4.

The connecting plate 25 facilitates independent manufacturing of said at least one quick-connect assembly 4, before being connected to a beam 2, thereby improving production efficiency of the bed frame structure.

Moreover, the outer end portion of the connecting plate 25 has two quick-connect holes 41 or two quick-connect fasteners 42 vertically spaced apart from each other, and a spacing D1 between the two quick-connect holes 41 or the two quick-connect fasteners 42 is not less than a vertical width D2 of a respective one of the plurality of beams 2.

Thus, when the width D2 of a beam 2 is designed to be relatively small for material-saving purpose, the connecting plate 25 can be used to increase the spacing D1 between the two quick-connect fasteners 42. Hence, when the beam 2 is quickly fastened to a respective connection wing plate 3 using the connecting plate 25, the two quick-connect fasteners 42 and the narrowed opening 24 of the beam 2 are positioned to define a substantially triangular shape, which can effectively ensure the stability of the connection between the beam 2 and the respective leg post 1, thereby improving the overall stability of the bed frame structure 100.

Further, to prevent accidental disengagement of a beam 2 and a corresponding connection wing plate 3 on a respective leg post 1, this fifth embodiment also provides a first through hole 36 on each of the plurality of connection wing plates 3, and a second through hole 26 corresponding to the first through hole 36 is provided on the end portion of a respective one of the plurality of beams 2. Thus, each of the plurality of connection wing plates 3 and the respective one of the plurality of beams 2 can be locked together through a hand-tightened bolt 61 and a nut 62. The hand-tightened bolt 61 passes through the first through hole 36 and the second through hole 26 in sequence. No tools are required for the locking operation, and the respective one of the plurality of beams 2 and a respective leg post 1 can be locked to prevent disengagement.

Moreover, the hand-tightened bolt 61 can pass through between two quick-connect assemblies 4, that is to say, the first through hole 36 and the second through hole 26 are positioned between the two quick-connect assemblies 4, enabling even better locking effect.

Embodiment 6

As shown in FIG. 17, the structures of this sixth embodiment are basically the same as those of Embodiment 1, except that the quick-connect hole 41 is provided on the end portion a respective one of the plurality of beams 2, and the quick-connect fastener 42 is provided on a respective one of the plurality of connection wing plates 3 of a respective one of the plurality of leg posts 1. Similarly, quick and convenient assembly and disassembly can also be achieved by using the above configurations of embodiment 6.

Claims

1. A bed frame structure, comprising a plurality of leg posts and a plurality of beams; a plurality of connection wing plates are provided at an upper portion of each of the plurality of leg posts, and each of the plurality of connection wing plates is capable of being assembled with and disassembled from a corresponding end portion of a respective one of the plurality of beams through at least one quick-connect assembly; each of said at least one quick-connect assembly comprises a quick-connect hole disposed on one of a respective connection wing plate and the corresponding end portion of the respective one of the plurality of beams, and a quick-connect fastener disposed on another one of said respective connection wing plate and the corresponding end portion of the respective one of the plurality of beam.

2. The bed frame structure of claim 1, wherein the plurality of leg posts comprise nine leg posts; the plurality of beams comprise six first beams and six second beams, wherein said first beams are longer than said second beams; the nine leg posts are arranged in a three-by-three array; each of two ends of each of the six first beams is connected to a respective one of two adjacent leg posts adjacent to each other along a longitudinal direction of the bed frame structure through at least one respective quick-connect assembly, and each of two ends of each of the six second beams is connected to a respective one of two adjacent leg posts adjacent to each other along a lateral direction of the bed frame structure through at least one respective quick-connect assembly; a plurality of slats extending along the lateral direction of the bed frame structure are installed between every two adjacent first beams of the six first beams adjacent to each other along the lateral direction of the bed frame structure.

3. The bed frame structure of claim 1, wherein the quick-connect hole comprises an upper hole and a lower hole, wherein the upper hole is larger than the lower hole; a bottom side of the upper hole is in communication with a top side of the lower hole; the quick-connect fastener comprises a stud and a limiting head that extends radially out of an outer end of the stud; an outer diameter of the limiting head is not greater than an inner diameter of the upper hole and not less than an inner diameter of the lower hole; an outer diameter of the stud is not greater than the inner diameter of the lower hole.

4. The bed frame structure of claim 1, wherein the quick-connect hole is an inverted conical shaped hole tapering downwardly from a top side towards a bottom side thereof; the top side of the inverted conical shaped hole is shaped as an upper convex arc, and the bottom side of the inverted conical shaped hole is shaped as a lower convex arc; the quick-connect fastener comprises a stud and a limiting head that extends radially out of an outer end of the stud; an outer diameter of the limiting head is not greater than an inner diameter of the upper convex arc and not less than an inner diameter of the lower convex arc.

5. The bed frame structure of claim 1, wherein the quick-connect hole is a vertically extending rectangular hole; the quick-connect fastener is a vertical limiting plate perpendicular to the corresponding end portion of the respective one of the plurality of beams; a vertical limiting groove is formed at a bottom side of the vertical limiting plate adjacent to the corresponding end portion of the respective one of the plurality of beams; a height and a width of the vertical limiting plate are not greater than a height and a width of the vertically extending rectangular hole, and the vertical limiting groove engages with the respective connection wing plate at a lower side of the vertically extending rectangular hole.

6. The bed frame structure of claim 1, wherein the quick-connect hole is a horizontally extending rectangular hole; the quick-connect fastener is a horizontal limiting plate protruding out from the corresponding end portion of the respective one of the plurality of beams and extending downwardly by an angle with respect to the corresponding end portion of the respective one of the plurality of beams so as to be spaced apart from the corresponding end portion of the respective one of the plurality of beams and therefore define a horizontal limiting groove with respect to the corresponding end portion of the respective one of the plurality of beams; a height and a width of the horizontal limiting plate are not greater than a height and a width of the horizontally extending rectangular hole, and the horizontal limiting groove engages with the respective connection wing plate at a lower side of the horizontally extending rectangular hole.

7. The bed frame structure of claim 1, wherein the quick-connect hole is an insertion slot, and the quick-connect fastener is an insertion tongue.

8. The bed frame structure of claim 1, wherein each of the plurality of connection wing plates is vertically welded and fixed to an outer wall of the upper portion of a respective leg post, and vertically extending along a same axial direction as the respective leg post.

9. The bed frame structure of claim 1, wherein each of the plurality of connection wing plates is vertically arranged on an outer wall of the upper portion of a respective leg post, and vertically extending along a same axial direction as the respective leg post; an inner side edge of each of the plurality of connection wing plates adjacent to the respective leg post is connected to a locking part that engages the outer wall of the respective leg post; the locking part is locked and fixed to at least one locking hole provided on the outer wall of the respective leg post through at least one locking screw; each of two vertical sides of the locking part is connected to a respective one of the plurality of connection wing plates so that two connection wing plates are connected to two vertical sides of the locking part respectively, and the two connection wing plates are circumferentially spaced apart by 90 degrees.

10. The bed frame structure of claim 1, wherein each of the plurality of connection wing plates comprises a fixing plate and a connecting plate parallel and spaced apart from each other; an inner side edge of the fixing plate is connected to an outer wall of the upper portion of a respective leg post; an outer side edge of the fixing plate and an outer side edge of the connecting plate are integrally connected through an arc-shaped connecting section; the quick-connect hole of each of said at least one quick-connect assembly 4 is provided on the connecting plate.

11. The bed frame structure of claim 1, wherein a connecting sleeve is fitted on the upper portion of each of the plurality of leg posts, and on each of the plurality of leg posts, a coupling assembly is provided between the connecting sleeve and a respective leg post; the connecting sleeve has a sleeve hole that penetrates through a top end and a bottom end of the connecting sleeve; the sleeve hole is a tapered hole that tapers upwardly from the bottom end towards the top end of the connecting sleeve; at least one of said plurality of connection wing plates is connected to an outer wall of the connecting sleeve; an annular groove is provided on an outer wall of the upper portion of the respective leg post; the coupling assembly comprises two half-sleeves that detachably connect with each other; an inner wall of the coupling assembly removably engages the outer wall of the respective leg post; an annular rib protrudes from the inner wall of the coupling assembly and engages with the annular groove; an outer wall of the coupling assembly is a tapered wall that corresponds to the sleeve hole; the connecting sleeve sleeves the coupling assembly.

12. The bed frame structure of claim 1, wherein each of the plurality of beams has an irregular or a square cross section.

13. The bed frame structure of claim 12, wherein each of the plurality of beams has said square cross section, and each of two end portions of each of the plurality of beams is compressed to form a narrowed opening on one side; each of the plurality of beams is also provided with a connecting plate on each of two ends of each of the plurality of beams; the connecting plate is fixed at the narrowed opening of each of the plurality of beams; said at least one quick-connect assembly is provided between an outer end portion of the connecting plate and a respective one of the plurality of connection wing plates of a respective leg post.

14. The bed frame structure of claim 13, wherein said at least one quick-connect assembly comprises two quick-connect assemblies, such that the outer end portion of the connecting plate has two quick-connect fasteners vertically spaced apart from each other, and a spacing between the two quick-connect fasteners is not less than a vertical width of a respective one of the plurality of beams.

15. The bed frame structure of claim 1, wherein a first through hole is provided on each of the plurality of connection wing plates, and a second through hole corresponding to the first through hole is provided on the end portion of each of the plurality of beams; each of the plurality of connection wing plates and the respective one of the plurality of beams are locked together through a hand-tightened bolt and a nut; the hand-tightened bolt passes through the first through hole and the second through hole in sequence.

16. The bed frame structure of claim 15, wherein said at least one quick-connect assembly comprises two quick-connect assemblies arranged vertically spaced apart from each other, and each of the plurality of connecting wing plates and the end portion of the respective one of the plurality of beams are mutually connected through the two quick-connect assemblies; the hand-tightened bolt passes through between the two quick-connect assemblies.

17. The bed frame structure of claim 1, wherein said plurality of leg posts comprise four leg posts; said plurality of beams comprise four beams; the four leg posts are arranged at four corners of the bed frame structure; the four beams are arranged to connect the four leg posts to form a rectangular shaped bed frame structure; each of two ends of each of the four beams is connected to a respect one of the four leg posts through said at least one quick-connect assembly; a plurality of slats extending laterally are arranged between two of the four leg posts which are laterally adjacent to each other.