BED WITH A THREE-WAY FOLDING MECHANISM

Abstract

A bed with a three-way folding mechanism includes a frame, several bed legs and several load-bearing bars, the frame is enclosed by two horizontal bars and two vertical bars in the horizontal direction, the bed legs are mounted on the frame in the vertical direction, the horizontal bars include at least two first bars rotatably connected by an hinged structure, the two first bars are foldable in the vertical direction, the vertical bars include at least two second bars hinged together by a rotation-connecting structure, so that the two second bars are foldable horizontally toward the interior of the frame, the folding mechanism includes an assembly base, a shaft and a strip slot, the assembly base is fixed to the vertical bar with an extension portion sleeved on the outer circumference of the horizontal bar and is hinged to the slot formed on the horizontal bar through the shaft.

Description

CROSS-REFERENCE TO RELATED APPLICATION

This application claims the priority benefit of China application no. 202320341754.8, filed on Feb. 28, 2023. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.

BACKGROUND

Technical Field

The disclosure relates to the technical field of furniture manufacturing, and in particular, relates to a bed with a three-way folding mechanism.

Description of Related Art

Currently, most of the existing beds bodies are composed of multiple parts, such as the frame at the head of the bed, the frame at the end of the bed, two side-plates, the bed legs and the skeleton in the middle; the above mentioned parts are assembled through the bolt and nut structure to form a flat bed; however, the existing beds are huge in size, with the width being at least more than 1 m, and the length being at least 1.8 m, such that the bed with such a big volume has to be disassembled during transportation and reassembled when being transported indoors.

Although a part of the volume of the bed is reduced for being completely disassemble during transportation, new problems as follows also arise: (1) as the bed has been completely disassembled into many parts, the difficulty for assembly increases accordingly, while the consumer is assembling the bed by himself, it is difficult to identify the right direction, and it often occurs that when the consumer realized that some parts of the bed frame have not been assembled or assembled in wrong direction, the whole assembly process is almost completed, resulting in disassembly and reassembly, and installation deviation is prone to occur while the consumer is carrying out the assembly process by himself, resulting in unstable of the bed and being prone to loosen while bearing a weight, which will cause a large number of complaints, returns and other situations; (2) the volume of the bed after being disassembled has not been reduced a lot, and the size can only be reduced in one direction of length or width; however, the freight for exporting the existing bed is calculated by volume, the freight for exporting the existing bed is still quite high, the transportation cost for exporting the bed body is high, and the profit margin left for the producers and the sellers has been mangled, resulting in sacrificing the quality of the raw materials and the manufacturing quality for profit; for the abovementioned issues, many designers have designed various foldable beds, but these beds can be folded only in one direction of the length or width.

In light of the above, the existing bed still needs further improvement to meet the needs of easy installation and compact volume.

SUMMARY

The objective of the disclosure is to overcome the above-mentioned defects or problems in the BACKGROUND section by providing a bed with a three-way folding mechanism which is simple in structure, easy to assemble and implement, thus solving the defect of the existing bed body which cannot simultaneously meet the requirement of easy installation and compact volume for facilitating transportation.

To accomplish the foregoing objective, the following technical solutions are adopted by the disclosure.

A bed with a three-way folding mechanism includes a frame body, several bed legs and several load-bearing bars, the frame body is enclosed by two horizontal bars and two vertical bars in the horizontal direction; the several legs are mounted on the frame body along the vertical direction.

Each of the horizontal bars includes at least two first bars, the two first bars are rotatably connected to each other through an articulated structure, such that the two first bars are foldable along the vertical direction.

Each of the two vertical bars includes at least two second bars, the two second bars are hinged to each other through a rotation-connecting structure, such that the two second bars foldable towards the interior of the frame body along the horizontal direction.

A folding mechanism is provided at the joint of the horizontal bar and the vertical bar for making the horizontal bar and the vertical bar connected are foldable relative to each other; the folding mechanism includes an assembly base, a shaft and a slot, the assembly base is fixedly connected to the vertical bar, and an extension portion of the assembly base is sleeved on an outer circumference of the horizontal bar, and the assembly base is hinged to the slot formed on the horizontal bar through the shaft, so that the vertical bar is foldable relative to the horizontal bar in the horizontal direction.

Further, the folding mechanism further comprises a locking assembly for locking the horizontal bar and the vertical bar and making an end face of the horizontal bar urges against a side face of the vertical bar when the horizontal bar and the vertical bar are perpendicular to each other in the horizontal direction.

Further, the locking assembly comprises a screw locking member and a combination seat, the combination seat is confined in the horizontal bar and located between the shaft and the assembly seat, the screw locking member is disposed on the assembly seat, and one end of the screw locking member penetrates through the side face of the vertical bar and the end face of the horizontal bar in turns and then is in screw joint with the combination seat, so that the side face of the vertical bar and the end face of the horizontal bar urge against each other.

Further, the screw locking member urges against a peripheral wall of the shaft when the side face of the vertical bar and the end face of the horizontal bar urges against each other.

Further, the bed with a three-way folding mechanism further includes a support bar, the support bar is parallel to the horizontal bar and removably cooperates with the rotation-connecting structure on the vertical bar to limit and support the two second bars on the vertical bar and make the two second bars in unfolded state be in the same line, and the support bar is also used to support each of the several load-bearing bars.

Further, the rotation-connecting structure on the vertical bar comprises a support, a pivot and a position-limiting member, the support comprises an opening portion, a position-limiting surface, an avoiding space and a receiving portion, the opening portion is for placing the second bar and rotatably cooperates with the second bar through the pivot, the position-limiting surface is for confining the side wall of the second bar and for the two second bars in unfolded state to rest against thereon and keeping the two second bars in the same line, the avoiding space is located between the two second bars and is for placing the position-limiting member, the receiving part is for mounting the support bar, when the second bars are in unfolded state, the position-limiting member penetrates through the avoiding space in the support and urges against an end face of the support bar, so that the support bar is removably fixed to the support, and the position-limiting member blocks the rotation stroke of the second bar portion.

Further, the articulated structure on the horizontal bar comprises an articulated seat, an articulated shaft and a strut formed on the articulated seat, the articulated seat is formed with an accommodating part for accommodating the two first bars and is hinged with the two first bars through the articulated shaft, opposite surfaces of the two first bars are inclined surface and an avoiding portion for rotation is formed between the two inclined surfaces, when the two first bars are on the articulated seat and in a horizontal position, upper surfaces of the two first bars exposed out the articulated seat are flush with each other.

Further, the several bed legs are correspondingly hinged to the horizontal bar and the vertical bar respectively, and a folding direction of the bed legs on the horizontal bar is perpendicular to that of the bed legs on the vertical bar.

Further, each of the several bed legs comprises a supporting leg and a bracket which are integrally formed, the bracket is provided with a hole and is hinged to the horizontal bar and the vertical bar through a spindle, and the supporting leg is set eccentrically relative to the spindle.

Based on the above description of the disclosure, the disclosure exhibits the following beneficial effects compared to the related art.

The bed with a three-way folding mechanism disclosed by the disclosure is simple in structure, easy to operate and easy to implement, thus solving the defect of the existing bed which cannot simultaneously meet the requirement of easy installation and compact volume for facilitating transportation; the bed described in the disclosure makes it possible that the horizontal bar (the bar in the length direction), the vertical bar (the bar in the width direction) and the bed leg (the bar in the height direction) connected are foldable; the horizontal bar can be folded in half to make the original length of the bed body longer than 1.8 m be reduced at least a half, the fold of the vertical bar makes the original width of at least 1 m be reduced to 0.1-0.2 m, and the bed leg is also foldable; more importantly, the fold of the disclosure is achieved without disassembling the horizontal bar, the vertical bar and the bed leg, which will significantly reduce the installation difficulty and time, and consumers themselves do not need to spend a lot of time to assemble the bed body, and the assembly of the bed body of the disclosure can be realized by simply unfolding the frame body and the bed leg and then fixing them, the situation of wrong installation, reverse installation and the like thus will be avoided. Compared with the existing foldable bed which can only be folded in one direction (i.e., only in the horizontal direction or in the vertical direction), by folding the bed body in three directions disclosed by the disclosure, the bed body of an original volume of at least 1.8*1.0*0.3 m in length, width and height respectively will be reduced to 0.9*0.2*0.05 m. The volume after being folded will be reduced to ⅛ to 1/10 of the original volume, which will greatly reduce the freight cost of overseas transportation and enhance the competitiveness of the product in overseas market; furthermore, the parts on the frame body are hinged to each other without disassembling, so there is no need to search for corresponding parts and strictly follow the steps as per the installation manual, which greatly reduces the installation time and the probability of misassembly.

(2) The locking assembly provided by the disclosure prevents the horizontal bar and the vertical bar in unfolded state from folding under external force, thus improving the overall stability of the bed body in unfolded state.

(3) By providing the screw locking member and the combination seat, stable and firm cooperation is realized, the screw locking member is not only fixed to the end face of the horizontal bar, but also fixed to the combination seat in the horizontal bar, so that the end face of the horizontal bar and the side face of the vertical bar tightly urge against each other, thus stabilizing the whole frame body.

(4) The screw locking member urges against an peripheral wall of the shaft when the side face of the vertical bar and the end face of the horizontal bar urge against each other, so that the shaft cannot move in the slot, and the axis of the shaft is perpendicular to that of the screw-locking member, further realizing the stable cooperation of the horizontal bar and the vertical bar in unfolded state.

(5) The support bar provided by the disclosure cooperates with the articulated structure on the vertical bar, which not only enhances the support capacity (when the width of the bed is greater than 1.2 m, the support bar provided will enhance the overall load-bearing capacity of the bed body), but also urges against the rotation-connecting structure on the vertical bar to prevent the vertical bars in unfolded state from folding towards the interior of the frame body, so that the bed body can be easily folded when it needs to be folded for storage, and also can achieve a good load-bearing capacity when it needs to be unfolded for use.

(6) The rotation-connecting structure on the vertical bar not only facilitates the storage of the two second bars in folded state, but also provides stable support and prevents the two second bars in unfolded state deforming and folding, and through the cooperation of the position-limiting surface and the position-limiting member, rotation of the two bars in unfolded state is limited, the corresponding roles and effects in both folded state and unfolded state are ensured.

(7) The avoiding part for rotating is provided by the disclosure for the articulated structure on the horizontal bar, so that the two first bars would not interfere with each other while rotating and folding towards each other, and the upper surfaces of the two first bars in unfolded state are flushed with each other, thus good appearance and good load-bearing capacity are guaranteed.

(8) The bed legs of the disclosure are installed on the horizontal bar and vertical bar respectively, and the folding direction of the bed legs on the horizontal bar is perpendicular to that of the bed legs on the vertical bar, the volume of the bed body after being folded thus will be reduced greatly, and there will be no interference during the folding process.

BRIEF DESCRIPTION OF THE DRAWINGS

To make the technical solutions provided in the embodiments of the disclosure more clearly illustrated, several accompanying drawings required by the embodiments for description are briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the disclosure, and for a person having ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort.

FIG. 1 a schematic exploded diagram of a bed according to an embodiment of the disclosure.

FIG. 2 a three-dimensional schematic diagram of the bed according to an embodiment of the disclosure.

FIG. 3 is a three-dimensional schematic diagram of a horizontal bar according to an embodiment of the disclosure in folded state.

FIG. 4 is a three-dimensional schematic diagram of a vertical bar according to an embodiment of the disclosure in folded state.

FIG. 5 a three-dimensional schematic diagram of a support bar according to an embodiment of the disclosure in folded state.

FIG. 6 is a three-dimensional schematic diagram of the horizontal bar and vertical bar according to an embodiment of the disclosure in folded state.

FIG. 7 is a first three-dimensional schematic diagram the horizontal bar, the vertical bar and bed legs the bed according to an embodiment of the disclosure in folded state.

FIG. 8 is a second three-dimensional schematic diagram the horizontal bar, the vertical bar and bed lags of the bed according to an embodiment of the disclosure in folded state.

FIG. 9 a cross-sectional view of a folding mechanism according to an embodiment of the disclosure.

FIG. 10 is a cross-sectional view of the folding mechanism according to an embodiment of the disclosure when the horizontal bar and the vertical bar are folding towards each other.

FIG. 11 is a three-dimensional schematic diagram of a support according to an embodiment of the disclosure.

DESCRIPTION OF THE EMBODIMENTS

The accompanying drawings in the embodiments of the disclosure are included to provide a clear and complete description of the technical solutions provided in the embodiments of the disclosure. Obviously, the described embodiments are preferred embodiments of the disclosure, and should not be regarded as exclusion of other embodiments. Based on the embodiments of the disclosure, all other embodiments obtained by a person of ordinary skill in the art without making any inventive effort fall within the scope that the disclosure seeks to protect

Unless otherwise clearly defined in the claims, specification, and the above-mentioned drawings of the disclosure, the terms “first”, “second”, or “third” and so on are used to distinguish different objects, not used to describe a specific order.

Unless otherwise clearly defined in the claims, specification, and the above-mentioned drawings of the disclosure, for location words, such as the use of the terms “center”, “transverse”, “perpendicular”, “horizontal”, “vertical”, “top”, “bottom”, “inner”, “outer”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “clockwise”, “counterclockwise”, and other indication orientations or positional relationships are based on the orientations and positional relationships shown in the drawings, are provided to facilitate the description of the disclosure and simplify the description, and are not intended to indicate or imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, so cannot be understood as limiting the specific protection scope of the disclosure.

In the claims, the description and the drawings of the disclosure, unless otherwise explicitly defined, if the term “fixed connection” or “fixedly connected” is used, it should be understood in a broad sense, that is, any connection method without displacement relationship and relative rotation relationship between the two, that is, including non-removable fixed connection, removably fixed connection, connected as a whole, and fixed connection through other devices or components.

In the claims, specification, and the above-mentioned drawings of the disclosure, if the words “include”, “have”, and variations thereof are used, it is intended to indicate “include but not be limited to”.

With reference to FIG. 1 to FIG. 11, a bed with a three-way folding mechanism according to an embodiment of the disclosure is disclosed, the bed can be folded for storage and is quite stable while bearing pressure when being unfolded.

The bed includes a frame body 1, several bed legs 2 and several load-bearing bars 3.

With reference to FIG. 1, the frame body 1 is enclosed by two horizontal bars 11 and two vertical bars 12 in the horizontal direction, in the embodiment, the horizontal bars 11 and the vertical bars 12 are square steel members, it should be noted that the horizontal bars 11 in the embodiment refer to the bars along the length direction, while the vertical bars 12 are the bars arranged along the width direction; the horizontal bars 11 and the vertical bars 12 are respectively connected end to end in the horizontal plane to form the rectangular frame body 1, and the bed legs 2 are mounted on the frame body 1 along the vertical direction (i.e. height direction).

With reference to FIG. 1 to FIG. 3, each horizontal bar 11 comprises at least two first bars 111, the two first bars 111 are rotatably connected through an articulated structure 4, and the two first bars 111 are foldable in the vertical direction, in the embodiment, the articulated structure 4 on the horizontal bar 11 comprises an articulated seat 41, an articulated shaft 42 and a strut 43 formed on the articulated seat 41, the articulated seat 41 is formed with an accommodating part for accommodating the two first bars 111 and is hinged to the two first bars 111 through the articulated shaft 42, opposite end faces of the two first bars 111 are inclined surfaces 111A, and an avoiding part 112 for rotating is formed between the two inclined surfaces 111A, when the two first bars 111 are located on the articulated seat 41 and are in a horizontal state, upper surfaces of the two first bars 111 exposed out of the articulated seat 41 are flush with each other.

With reference to FIG. 1, FIG. 2, FIG. 4 and FIG. 11, each of the vertical bar 12 includes at least two second bars 121, the two second bars 121 are hinged to each other by a rotation-connecting structure 5, so that the hinged two second bars 121 are foldable towards the interior of the frame body 1 in the horizontal direction, in the embodiment, the rotation-connecting structure 5 located on the vertical bar 12 includes a support 51, a pivot 52 and a position-limiting member 53, the support 51 includes an opening portion 511, a position-limiting surface 512, an avoiding space 513 and a receiving portion 514, the opening portion 511 is for accommodating the second bars 121 and rotatably cooperates with the second bars 121 through the pivot 52, the position-limiting surface 512 is used to confine side walls of the second bars 121, and the two second bars 121 urge against the position-limiting surface 512 when in unfolded state to make sure the two second bars 121 are in the same line, the avoiding space 513 is located between the two second bars 121 and for placing the position-limiting member 53, the receiving portion 514 is for limiting and mounting a support bar 6, when the two second bars 121 are in unfolded state, the position-limiting member 53 penetrating through the avoiding space 513 in the support 51 and urges against the end face of the support bar 6 to make sure that the support bar 6 is detachably fixed to the support 51, and the position-limiting member 53 blocks the rotation stroke of the second bars 121, that is, the rotation of the second bars 121 is blocked by the position-limiting member 53.

With reference to FIG. 1, FIG. 2, FIG. 9 and FIG. 10, a folding mechanism 7 is provided at the joint of the horizontal bar 11 and the vertical bar 12 to mark sure that the horizontal bar 11 and the vertical bar 12 connected can be foldable.

The folding mechanism 7 includes an assembly seat 71, a shaft 72 and a slot 73.

The assembly seat 71 is fixedly connected to the vertical bar 12 and an upper extension portion 710 of the assembly seat 71 is sleeved on the outer circumference of the horizontal bar 11, and the assembly seat 71 is hinged to the slot 73 formed on the horizontal bar 11 through the shaft 72, so that the vertical bar 12 is foldable relative to the horizontal bar 11 in the horizontal direction.

The folding mechanism 7 further comprises a locking assembly 74 for locking the horizontal bar 11 and the vertical bar 12 when the horizontal bar 11 and the vertical bar 12 are perpendicular to each other in the horizontal direction, and making sure that the end face of the horizontal bar 11 urge against the side face of the vertical bar 12, it should be noted that the locking assembly 74 comprises a screw locking member 741 and a combination seat 742, the combination seat 742 is located in the horizontal bar 11 and is between the shaft 72 and the assembly seat 71, the screw locking member 741 is mounted on the assembly seat 71 and one end of the screw locking member 741 penetrates through the side face of the vertical bar 12 and the end face of the horizontal bar 11 in turns and then threadedly connected with the combination seat 742 to make sure that the side face of the vertical bar 12 urges against the end face of the vertical bar 11.

The bed legs 2 are correspondingly hinged to the horizontal bar 11 and the vertical bar 12 respectively, and the folding direction of the bed leg 2 on the horizontal bar 11 is perpendicular to that of the bed leg 2 on the vertical bar 12, it should be noted that the bed leg 2 in the embodiment includes a supporting leg 21 and a bracket 22, the bracket 22 is provided with a hole 221 and is hinged to the horizontal bar 11 and vertical bar 12 through a spindle 23, and the supporting leg 21 is eccentrically set relative to the spindle 23.

More specifically, the screw locking member 741 urges against the outer peripheral wall of the shaft 72 when the side face of the vertical bar 12 urges against the end face of the horizontal bar 11.

More specifically, in the embodiment, when the length of the vertical bar 12 is greater than 1.2 m, the support bar 6 is also provided in the middle portion of the vertical bar 12, the support bar 6 is parallel to the horizontal bar 11 and detachably cooperates with the rotation-connecting structure 5 on the vertical bar 12 to guarantee that the two second bars 121 of the vertical bar 12 in unfolded state are in the same line and to support load-bearing bars 3.

As shown in FIG. 1 to FIG. 11, the bed with a three-way folding mechanism 7 according to an embodiment of the disclosure mainly comprises the following: frame body 1, two horizontal bars 11, first bar 111, two vertical bars 12, second bar 121, at least four bed legs 2, supporting leg 21, bracket 22, spindle 23, several load-bearing bars 3, articulated seat 41, articulated shaft 42, strut 43, support 51, pivot 52, position-limiting member 53, support bar 6, assembly seat 71, shaft 72, slot 73, screw locking member 741 and combination seat 742.

The preparing and folding process:

(1) preparing two horizontal bars 11, each horizontal bar 11 is composed of at least two first bars 111 hinged together, in the embodiment two first bars 111 are adopted for illustration, and each first bar 111 is longer than 0.9 m, and the two first bars 111 are connected to the articulated seat 41 through the articulated shaft 42, and the opposite sides of the two first bars 111 are provided with the inclined surface 111A, it should be noted that a lower portion of the articulated seat 41 is extending to form the strut 43, the strut 43 serves the same purpose as the bed legs 2; preparing at least two horizontal bars 11 in this way.

(2) preparing two vertical bars 12, each vertical bar 12 is composed of at least two second bars 121 hinged together; in the embodiment, the two second bars 121 (the length of the two second bars 121 in the embodiment is greater than 0.5 m) are placed to the opening portion 511 on the support 51, and are hinged to the support 51 through the pivot 52; it should be noted that there is an avoiding space 513 between the two second bars 121 for the two second bars 121 to rotate, and by providing the position-limiting surface 512, the support 51 at the location of the rotation-connecting structure of the second bars 121 can only be foldable towards the interior of the frame body 1, further, a side opposite to the position-limiting surface 512 is provided with the receiving part 514 for receiving the support bar 6.

(3) preparing the support bar 6 in the same way as that of the horizontal bar 11, the support bar 6 here is used to enhance the load-bearing capacity and is generally provided when the width of the frame body 1 is greater than 1.2 m (i.e. the support bar 6 is provided when the length of the vertical bar 12 is greater than 1.2 m to enhance the overall stability and reliability of the bed body).

(4) mounting the bed leg 2, the bed leg 2 includes the supporting leg 21 and the bracket 22, the length of the whole bed leg 2 is greater than 0.3 m, the bracket 22 is located at the end portion of the supporting leg 21 and is provided with a hole 221, the hole 221 is eccentrically set relative to the supporting leg 21, and the bed leg 2 is hinged to the horizontal bar 11 and the vertical bar 12 through the hole 221 on the bracket 22; in the embodiment, the rotation direction of the bed leg 2 located on the two horizontal bars 11 is perpendicular to that of the bed leg 2 located on the vertical bar 12, the bed leg 2 is hinged to the support bar 6 in the same way.

(5) Connecting the horizontal bar 11 to the vertical bar 12 through the folding structure as follows:

In the disclosure, the combination seat 742 is provided in the horizontal bar 11, the slot 73 penetrates through the upper surface and the lower surface of the horizontal bar 11, subsequently, the assembly seat 71 is welded to the side portion of the vertical bar 12 and provided with two extension arms 710 (i.e. extension portion 710) extending towards the horizontal bar 11, the horizontal bar 11 is placed right to the position between the two extension arms 710, the shaft 72 passes through the slot 73 to realize the hinge joint of the vertical bar 12 and the horizontal bar 11; it should be noted that the slot 73 is arranged along the length direction of the horizontal bar 11, the screw locking member 741 passes through the vertical bar 12, enters the horizontal bar 11, and passes through and is threadedly connected to the combination seat 742;

The remaining free ends of the horizontal bar 11 and of the vertical bar 12 are hinged respectively in the above manner, so that the whole frame body 1 and the bed legs 2 are proper connected and can be foldable freely;

While folding:

(1) First, folding the two bed legs 2 located on the horizontal bars 11 and set on the same side inwards the horizontal bars 11.

(2) Folding the two second bars 121 relative to each other so that the supports 51 in the middle of the two vertical bars 12 move toward the interior of the frame body 1 (i.e., the inner sides of the horizontal bars 11), during which the folding mechanism 7 at the joint of the vertical bar 12 and the horizontal bar 11 is released, that is, the assembly seat 71 on the vertical bar 12 is displaced outward along the length direction of the horizontal bar 11 by a certain distance, the distance is the length of the slot 73, at the moment, the vertical bar 12 is released from the constraint of the end face of the horizontal bar 11, then rotate and fold the vertical bar 12 relative to the horizontal bar 11 around the shaft 72, which makes the two second bars 121 of the vertical bar 12 fold inward, the vertical bar 12 on the other side is also folded in the same way; the original width of the frame body 1 of at least 1 m is reduced to the width of four second bars 121, and in practice the width of the frame body 1 after being folded is 0.1-0.2 m.

(3) Folding the bed legs 2 set on the vertical bars 12.

(4) Taking the articulated seat 41 on the horizontal bar 11 as the hinge point to fold the two first bars 111 relative to each other, at the moment, the folding of the first bars 111 drives the second bars 121 to move along the same rotation direction of the first bar body 111, since the articulated seat 41 is provided with the strut 43, and the width of the strut 43 is equal to the width of the bed leg 2, so there is no interference; the two first bars 111 are respectively folded relative to each other in the same way (it should be noted that, since the second bar 121 of the vertical bar 12 is folded towards the interior of the frame body 1, the bed legs 2 on the vertical bars 12 are also between the two horizontal bars 11 correspondingly, that is, after being folded, the bed legs 2 on the vertical bars 12 are also in the inner sides of the horizontal bars 11); and then the first bars 111 on the two horizontal bars 11 are folded, the bed legs 2 on the two horizontal bars 11 share the same axis with the horizontal bars 11, and the bed legs 2 on the two horizontal bars 111 and the bed legs 2 on the vertical bars 12 will not interfere with each other, and thus make the whole frame body 1 after being folded be a compact rectangle, thus facilitating packaging; as for the size of the frame body 1 after being folded, the length reduces to half of the original length, that is, for a bed body with a length of 1.8 m, a width of 1 m and a height of 1 m, the volume of the bed body after being folded will be reduced to 0.9 m in length, 0.1 m in width and 0.1 m in height; no matter when the width of the bed body is 1 m, 1.2 m, 1.4 m, 1.5 m or 1.8 m the width after being folded will still be 0.1 m, which is a very important advantage in terms of overseas transportation costs.

(5) For the bed body with a width greater than 1.2 m and the support bar 6 is provided in the middle, the support bar 6 will be folded in the same way.

(6) Finally, after the frame body 1 and the support bar 6 being folded respectively, a number of load-bearing bars 3 are packaged together with the frame body 1 for transportation; when the frame body 1 needs to be used, it is only required to unfold the folded frame body 1, fix the articulated parts, and then place the support bar 6 and the load-bearing bars 3 to the corresponding position respectively, a stable bed thus is achieved.

While unfolding:

(1) Unfolding the horizontal bars 11 and the vertical bars 12 along the length direction and the width direction of the body 1 respectively (i.e., first unfold the two first bars 111 of the horizontal bar 11 with the articulated seat 41 as the center of the circle until the two first bars 111 are in the horizontal position, and then pull the two horizontal bars 11 apart along the width direction until the two second bars 121 in the width direction are in the same line), and unfold the bed leg 2 and support on the ground.

(2) When the vertical bar 12 is rotated to a state perpendicular to the horizontal bar 11, the assembly seat is pushed towards the horizontal bar 11, so that the side wall of the vertical bar 12 urges against the end face of the horizontal bar 11, at the moment, the shaft 72 is displaced synchronously to a certain position, then the screw locking member 741 is screwed to threadedly connected to the combination seat 742 inside the horizontal bar 11 and urge against the shaft 72; the remaining three folding mechanisms 7 are fixed in the same way, so as to ensure that the side face and the end face are perpendicular to and urge against each other to realize firm support.

(3) Embedding the support bar 6 to the receiving portion 514 of the support 51 on the vertical bar 12 after unfolding the bed leg 2 on the support bar 6.

(4) Each load-bearing bar 3 is mounted with two ends on the two horizontal bars 11 respectively or with one end on the one horizontal bar 11 and the other end on the support bar 6, wherein the load-bearing bar 3 mounted on the hinged seat 41 of the horizontal bar 11 is also bolted to ensure the stability.

The assembly process is completed through above steps, the whole process is simple, searching for parts, reading drawing and the like during the assembly process is not required, and there is no need to warry about reverse installation, wrong installation; the assembly of the conventional bed body requires at least 2 hours, the bed in the disclosure however can be completed within 10 minutes, such bed can be used indoors and outdoors, is small in size, easy to transport and reduces transportation costs.

The above description of the specification and embodiments is used to explain the scope of protection of the disclosure, but does not constitute a limitation of the scope of protection of the disclosure.

Claims

1. A bed with a three-way folding mechanism comprising a frame body, several bed legs and several load-bearing bars, the frame body is enclosed by two horizontal bars and two vertical bars in the horizontal direction; the several bed legs are mounted on the frame body along the vertical direction, wherein each of the two horizontal bars comprising at least two first bars, the two first bars being rotatably connected to each other through an articulated structure, and the two first bars are foldable along the vertical direction;each of the two vertical bars comprising at least two second bars, the two second bars being hinged to each other through a rotation-connecting structure, such that the two second bars are hinged and foldable towards the interior of the frame body along the horizontal direction;a folding mechanism is provided at a joint of the horizontal bar and the vertical bar for realizing that the horizontal bar and the vertical bar connected are foldable relative to each other, the folding mechanism comprises an assembly base, a shaft and a slot, the assembly base is fixedly connected to the vertical bar, and an extension portion of the assembly base is sleeved on an outer circumference of the horizontal bar, and the assembly base is hinged to the slot formed on the horizontal bar through the shaft, so that the vertical bar is foldable relative to the horizontal bar in the horizontal direction.

2. The bed with a three-way folding mechanism according to claim 1, wherein the folding mechanism further comprises a locking assembly for locking the horizontal bar and the vertical bar and making an end face of the horizontal bar urge against a side face of the vertical bar when the horizontal bar and the vertical bar are perpendicular to each other in the horizontal direction.

3. The bed with a three-way folding mechanism according to claim 2, wherein the locking assembly comprises a screw locking member and a combination seat, the combination seat is confined in the horizontal bar and located between the shaft and the assembly seat, the screw locking member is disposed on the assembly seat, and one end of the screw locking member penetrates through the side face of the vertical bar and the end face of the horizontal bar in turns and then is in screw joint with the combination seat, so that the side face of the vertical bar and the end face of the horizontal bar urge against each other.

4. The bed with a three-way folding mechanism according to claim 3, wherein the screw locking member urges against a peripheral wall of the shaft when the side face of the vertical bar and the end face of the horizontal bar urges against each other.

5. The bed with a three-way folding mechanism according to claim 3 further comprises a support bar, the support bar is parallel to the horizontal bar and removably cooperates with the rotation-connecting structure on the vertical bar to limit and support the two second bars on the vertical bar and make the two second bars in unfolded state be in the same line, and the support bar is also used to support the several load-bearing bars.

6. The bed with a three-way folding mechanism according to claim 5, wherein the rotation-connecting structure on the vertical bar comprises a support, a pivot and a position-limiting member, the support comprises an opening portion, a position-limiting surface, an avoiding space and a receiving portion, the opening portion is for placing the second bar and rotatably cooperates with the second bar through the pivot, the position-limiting surface is for confining the side wall of the second bar and for the two second bars in unfolded state to rest against thereon and keeping the two second bars in the same line, the avoiding space is located between the two second bars and is for placing the position-limiting member, the receiving part is for mounting the support bar, when the second bars are in unfolded state, the position-limiting member penetrates through the avoiding space in the support and urges against an end face of the support bar, so that the support bar is removably fixed to the support, and the position-limiting member blocks the rotation stroke of the second bar.

7. The bed with a three-way folding mechanism as claimed in claim 1, wherein the articulated structure on the horizontal bar comprises an articulated seat, an articulated shaft and a strut formed on the articulated seat, the articulated seat is formed with an accommodating part for accommodating the two first bars and is hinged with the two first bars through the articulated shaft, opposite surfaces of the two first bars are inclined surface and an avoiding portion for rotation is formed between the two inclined surfaces, when the two first bars are on the articulated seat and in a horizontal position, upper surfaces of the two first bars exposed out the articulated seat are flush with each other.

8. The bed with a three-way folding mechanism according to claim 1, wherein the several bed legs are correspondingly hinged to the horizontal bar and the vertical bar respectively, and a folding direction of the bed legs on the horizontal bar is perpendicular to that of the bed legs on the vertical bar.

9. The bed with a three-way folding mechanism according to claim 8, wherein each of the several bed legs comprises a supporting leg and a bracket which are integrally formed, the bracket is provided with a hole and is hinged to the horizontal bar and the vertical bar through a spindle, and the supporting leg is set eccentrically relative to the spindle.