A multi-purpose interlocking bed

Abstract

This utility model discloses a multi-purpose modular bed, including a bed frame and a guardrail assembly. The bed frame has a headboard end, a footboard end, and a connecting end for assembly with a main bed. The guardrail assembly includes a main guardrail located at one end opposite the connecting end and two side guardrails located at the headboard end and the footboard end, respectively. The main guardrail is fixedly connected between the two side guardrails. The headboard end and the footboard end of the bed frame each have two bed legs, each bed leg located at a corner of the bed frame. By setting an insert structure between the guardrail assembly and the bed legs, the guardrail assembly can be quickly and easily assembled or separated from the bed frame. This allows the modular bed to be used in conjunction with the main bed or separated from the main bed and used as a small bed or table, achieving the purpose of multiple uses and meeting the needs of users.

Description

Technical Field

[0001] This utility model relates to the field of furniture, and in particular to a multi-purpose interlocking bed. Background Technology

[0002] A modular bed is a specially designed bed to meet the needs of families where children and adults share a bedroom or who want to increase their sleeping space. Modular beds typically consist of a bed frame and bed legs. One side of the bed frame is used to connect with the main bed in the bedroom, while the other three sides of the bed frame usually have guardrails that extend above the top of the bed frame to prevent children from rolling off the modular bed.

[0003] Modular beds can be used in conjunction with a main bed, and can also be used as a standalone table or small bed by removing the guardrails. However, most existing bed frames and guardrails are integrated structures that cannot be disassembled. For example, in the modular bed patent with publication number CN217488149, the modular bed includes a bed frame and a bed board; a bed leg is installed at each of the four corners of the bed frame, and a railing is installed around the perimeter of the bed frame; the bed legs extend upwards, exceeding the height of the bed board, and the railing is installed between adjacent bed legs; in this patent, the lower half of the bed leg is the support for the bed frame, and the upper half of the bed leg is the mounting carrier for the railing. Therefore, the upper and lower parts of the bed legs of this type of modular bed cannot be disassembled, making it difficult to switch between a bed and a table, and failing to achieve the purpose of multi-purpose use.

[0004] Furthermore, in order to make the modular bed multi-functional, the bed frame and guardrail can be connected by screws. However, this requires frequent screw removal and installation when assembling or disassembling the guardrail, resulting in poor operability and convenience. Summary of the Invention

[0005] This utility model provides a multi-purpose modular bed. By setting an insert structure between the guardrail assembly and the bed legs, the guardrail assembly can be quickly and easily assembled or separated from the bed frame. This allows the modular bed to be used in conjunction with the main bed, or it can be separated from the main bed and used as a small bed or table, thus achieving the purpose of one bed serving multiple purposes and meeting the needs of users.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A multi-purpose modular bed includes a bed frame and a guardrail assembly. The bed frame has a headboard end, a footboard end, and a connecting end for assembly with a main bed. The guardrail assembly includes a main guardrail located at one end opposite the connecting end and two side guardrails located at the headboard end and the footboard end, respectively. The main guardrail is fixedly connected between the two side guardrails. The headboard end and the footboard end of the bed frame each have two bed legs, each bed leg located at a corner of the bed frame. Each side guardrail is provided with an insert structure between it and the two bed legs at the headboard end or the footboard end.

[0008] The modular bed has a modular mode and an independent mode. In the modular mode, the modular end is connected to the main bed, and each side rail is fixed to the corresponding bed leg by a plug-in structure, so that the railing assembly surrounds the upper part of the bed frame. In the independent mode, the modular end is separated from the main bed, and each side rail is pulled out from the corresponding bed leg, so that the railing assembly is detached from the bed frame. At this time, the modular bed switches to the independent mode.

[0009] As a preferred option, it also includes extension legs for connecting with the bed legs; when the modular bed is in independent mode and the extension legs are installed at the bottom of the bed legs, the modular bed switches to table support mode; when the extension legs are removed, the bottom of the bed legs contact the ground, and the modular bed switches to tatami support mode; so that when the modular bed is used independently, it can function as both a table and a tatami.

[0010] Preferably, the system also includes a lifting leg assembly for connecting to the bed legs. The lifting leg assembly includes a base and a lifting seat that is lifted and connected to the base. The lifting seat is connected to the bed legs. When the modular bed is in modular mode, the lifting seat is raised and lowered so that the upper end of the bed frame is flush with the upper end of the main bed. When the modular bed is in independent mode, the lifting seat is raised and lowered to adjust the support height of the bed frame, thus meeting the needs of the modular bed when used independently.

[0011] As an option, it also includes sofa upholstery. In independent mode, the sofa upholstery is placed on top of the bed frame, allowing the bed to switch to sofa support mode.

[0012] Preferably, the side rail includes two side uprights corresponding to the positions of the two bed legs at the head or foot of the bed. Both the side uprights and the bed legs are hollow tubular components. The insertion structure includes an insert between the top of the bed leg and the bottom of the corresponding side upright. Both ends of the insert have plugs, which are inserted into or removed from the bed leg and the side upright, respectively, so that the railing assembly can be combined or separated from the bed frame. No additional insert accessories are required; the existing hollow bed legs and side uprights can be used for insertion and assembly, enabling quick assembly and disassembly of the railing assembly from the bed frame.

[0013] Preferably, a connector is provided between the main guardrail and each side guardrail, and the connector is detachably connected to both the main guardrail and the corresponding side guardrail; this facilitates disassembly and packaging during transportation, saving transportation space.

[0014] Preferably, at least one of the two side rails includes a side support rotatably connected to the bed frame and a side rail frame rotatably connected to the side support. The side rail frame can rotate in a direction close to or away from the main rail to open or close the side rail. When the side rail frame is closed, it and the side support together form a barrier to protect the head or foot of the bed. When the side rail frame is open, the child can leave the head or foot of the bed by himself or with the help of family members.

[0015] Preferably, a locking switch is provided between the side rail frame and the bed frame. The locking switch can control the side rail to lock or unlock, allowing the side rail to switch between open and closed states.

[0016] Preferably, the locking switch is a self-spring-loaded pin assembly; the self-spring-loaded pin assembly is low in cost, simple to operate, and allows the side railing to quickly switch between open and closed states.

[0017] Preferably, the side rail includes two side posts corresponding to two bed legs at the head or foot of the bed, and the insertion structure includes a connector fixed to one of the bottom end of the side post and the top end of the bed leg, and a slot on the other side post and the top end of the bed leg, wherein the connector is inserted into or removed from the slot to assemble or detach the rail assembly from the bed frame.

[0018] The beneficial effects of this utility model, which adopts the above technical solution, are as follows:

[0019] This invention utilizes an insert structure between the guardrail assembly and the bed legs, allowing the guardrail assembly to be quickly installed or removed according to actual needs. When the modular bed is used in conjunction with the main bed, the guardrail assembly can be installed on the bed frame through the insert structure, forming a barrier area extending beyond the top of the bed frame. When the modular bed is used independently, the guardrail assembly can be pulled out of the bed frame, allowing the modular bed to be used as a separate bed or table, eliminating the cumbersome installation process and meeting the need for a multi-functional bed. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the splicing bed;

[0021] Figure 2 An exploded view of the modular bed;

[0022] Figure 3 This is a diagram illustrating the connection between the modular bed and the main bed.

[0023] Figure 4 Enlarged view of the locking switch and joint assembly;

[0024] Figure 5 A schematic diagram showing the two side guardrails rotating and opening;

[0025] Figure 6 A diagram illustrating the switching of the modular bed to tatami support mode;

[0026] Figure 7 This is a diagram illustrating the switching of the modular bed to table support mode.

[0027] Figure 8 A diagram illustrating the switching between a modular bed and a lift bed or lift table;

[0028] Figure 9This is a diagram illustrating the switching of a modular bed to sofa support mode.

[0029] Figure 10 A schematic diagram of the insert between the side guardrail and the bed leg;

[0030] Figure 11 In Example 2, a schematic diagram of the structure of the insert between the side guardrail and the bed leg is shown.

[0031] Figure 12 A schematic diagram of the locking switch installed between the bed legs and the side guardrail frame;

[0032] The attached figures are labeled as follows: 1-bed frame, 11-bed legs, 11a-slot, 12-through hole, 13-self-spring-loaded pin assembly, 131-pin seat, 132-plug seat, 133-pin, 134-control button, 14-elevation feet, 2-main guardrail, 21-main upright, 22-upper crossbar, 23-lower crossbar, 24-lifting connection assembly, 25-connector, 251-screw hole, 3-side guardrail, 31-side bracket, 32-side guardrail frame, 3a-first upright, 3b-second upright, 4-connector, 41-avoidance hole, 42-plug hole, 5-mattress, 6-joint assembly, 61-rotating joint, 6a-insertion, 6b-plug, 6c-plug connector, 7-lifting foot assembly, 71-base, 72-lifting seat, 8-sofacial upholstery. Detailed Implementation

[0033] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0035] The specific embodiments of this utility model are as follows:

[0036] Example 1: As Figure 1-10 , Figure 12As shown, this embodiment provides a multi-purpose modular bed, including a bed frame 1 and a guardrail assembly. The bed frame 1 in this embodiment is lightweight and is an integral structure welded from multiple hollow tubes. The upper end of the bed frame 1 can be used to place a mattress 5. The bed frame 1 has a headboard end, a footboard end, and a splicing end for joining with a main bed. The guardrail assembly includes a main guardrail 2 located at one end opposite to the splicing end and two side guardrails 3 located at the headboard end and the footboard end, respectively. The main guardrail 2 is fixedly connected between the two side guardrails 3 and located at one end opposite to the splicing end. Both the side guardrails 3 and the main guardrail 2 are frame structures composed of multiple hollow tubes. Protective net curtains can be installed on the main guardrail 2 and the side guardrails 3 to provide protection. The headboard end and the footboard end of the bed frame 1 each have two bed legs 11, each bed leg 11 located at a corner of the bed frame 1. Each side guardrail 3 is provided with an insert structure between it and the two bed legs 11 at the headboard end or the footboard end.

[0037] The modular bed has both modular and independent modes; in modular mode, such as... Figure 3 As shown, the splicing end is spliced ​​with the main bed, and each side guardrail 3 is fixed to the corresponding bed leg 11 by a plug-in structure, so that the guardrail assembly surrounds the upper part of the bed frame 1; the splicing end is separated from the main bed, and each side guardrail 3 is pulled out from the corresponding bed leg 11, so that the guardrail assembly is detached from the bed frame 1, at which time the splicing bed switches to independent mode.

[0038] Furthermore, such as Figure 10 As shown, for easy insertion or disassembly, the side rail 3 in this embodiment includes two side uprights corresponding to the positions of the two bed legs 11 at the head or foot of the bed. The two side uprights are the outermost frame rods of the side rail 3. Both the side uprights and the bed legs 11 are hollow tubes. The insertion structure includes an insertion part 6a between the top of the bed leg 11 and the bottom of the corresponding side upright. The insertion part 6a has plugs 6b at both ends. The two plugs 6b are inserted into or removed from the bed leg 11 and the side upright, respectively, so that the railing assembly can be combined or separated from the bed frame 1. No additional insertion accessories are required. Only the original hollow structure of the bed leg 11 and the side upright are used for insertion and assembly, so as to achieve quick assembly and disassembly of the railing assembly and the bed frame 1.

[0039] Furthermore, such as Figure 1 As shown, the insert 6a can also be a joint assembly 6. The joint assembly 6 includes two hinged rotating joints 61. Each rotating joint 61 includes a hinged end, and two plugs 6b are respectively disposed on opposite ends of the hinged ends of the two rotating joints 61. In this way, in addition to ensuring that the guardrail assembly can be inserted and removed normally, the side guardrail 3 can also be rotated toward one side of the bed frame 1 during transportation and packaging, so that it overlaps on the upper end of the bed frame 1, further saving packaging space and transportation costs.

[0040] Furthermore, such as Figure 6-7As shown, the modular bed also includes extension legs 14 for connecting with the bed legs 11. Extension legs 14 are an optional component of the modular bed. When the modular bed is used in independent mode and extension legs 14 are installed at the bottom of the bed legs 11, the modular bed switches to table support mode. At this time, the bed frame 1 with the extension legs 14 can be used as a table after removing the guardrail assembly. When extension legs 14 are removed, the bottom of the bed legs 11 contacts the ground. Since the support height of the upper surface of the bed frame 1 is reduced, the modular bed switches to tatami support mode. This allows the modular bed to function as both a table and a tatami mat when used independently.

[0041] Furthermore, such as Figure 8 As shown, the modular bed also includes a lifting leg assembly 7 for connection with the bed legs 11. The lifting leg assembly 7 is also an optional component of the modular bed and is an existing structure. The lifting leg assembly 7 includes a base 71 and a lifting seat 72 that is lifted and connected to the base 71. The base 71 has multiple longitudinally spaced stop holes, and the lifting seat 72 has a spring pin. The spring pin engages with the corresponding stop hole, which can keep the lifting seat 72 stable after it is raised and lowered to a predetermined position. The lifting seat 72 is connected to the bed legs 11. When the modular bed is in modular mode, the lifting seat 72 is raised and lowered so that the upper end of the bed frame 1 is flush with the upper end of the main bed, preventing a support gap between the main bed and the modular bed. When the modular bed is in independent mode, the lifting seat 72 is raised and lowered to a predetermined position to adjust the support height of the bed frame 1, thus meeting the needs of the modular bed when used as a lifting table or a lifting bed independently.

[0042] Furthermore, such as Figure 9 As shown, the modular bed also includes a sofa upholstery 8, which is also an optional component. When the modular bed is in independent mode and the guardrail assembly is removed, placing the sofa upholstery 8 on top of the bed frame 1 switches the modular bed to sofa support mode. At this time, the modular bed can be used as a separate small sofa.

[0043] Furthermore, to facilitate the transportation and packaging of the modular bed and save on transportation costs and space, the main guardrail 2 and the two side guardrails 3 are not an integral structure, but are detachably connected. A connector 4 is provided between the main guardrail 2 and each side guardrail 3, and the connector 4 is detachably connected to both the main guardrail 2 and the corresponding side guardrail 3. Specifically, the main guardrail 2 includes two main uprights 21, with an upper crossbar 22 and a lower crossbar 23 between the two main uprights 21. The two side uprights on the side guardrail 3 can be divided into a first upright 3a near the splicing end and a second upright 3b near the opposite end of the splicing end. Each second upright 3a corresponds to the position of the corresponding main upright 21. The connector 4 is located between the second upright 3a and the main upright 21, and the connector 4 can be fixed using one or more of the following methods: socket connection, screw connection, etc. In this embodiment, to ensure stable connection, a screw and sleeve method is used for fixing. The connector 4 includes two insertion holes 42. The top of the second upright 3a and the top of the main upright 21 are respectively inserted into the two insertion holes 42 to form a sleeve fixing effect. Simultaneously, to further ensure the structural stability of the guardrail assembly, a connector plug (not shown) is inserted and fixed to the top of the second upright 3a and the top of the main upright 21. The connector plug has a threaded hole, and the connector 4 has a clearance hole 41 larger than the corresponding threaded hole. Each screw passes through the clearance hole 41 and is locked into the threaded hole, forming a more stable screw fixing effect. In actual use, the user can either simply fix the second upright 3b and the main upright 21 by sleeve connection using the connector 4, or add screws after sleeve fixing to enhance the stability of the guardrail assembly.

[0044] Furthermore, a protective net curtain can be installed between the upper horizontal bar 22 and the lower horizontal bar 23 in the main guardrail 2. In order to make the net curtain adjustable, both ends of the upper horizontal bar 22 are slidably connected to the corresponding second upright bar 3b through the lifting connection assembly 24. The lifting connection assembly 24 is an existing structure, which usually includes a sliding sleeve slidably connected to the second upright bar 3b. The sliding sleeve and the second upright bar 3b are positioned by screws or elastic pins (not shown). A rotating sleeve is rotatably connected to the sliding sleeve. The rotating sleeve is fitted on the end of the upper horizontal bar. When the upper horizontal bar 22 is raised or lowered, the rotating sleeve compensates for the problem of asynchronous raising and lowering at both ends of the upper horizontal bar 22 by rotating itself, preventing the upper horizontal bar 22 from getting stuck during raising and lowering.

[0045] Furthermore, such as Figure 1As shown, the lower crossbar 23 on the main guardrail 2 is connected between the two bed legs 11 at the head and foot of the bed. Specifically, connectors 25 are inserted into the openings at both ends of the lower crossbar 23. Each connector 25 has a single screw hole 251, and each bed leg 11 has a corresponding through hole 12. The screw passes through and is screwed into the screw hole 251 to connect the end of the lower crossbar 23 to the bed leg 11. The screw can completely lock the lower crossbar 23 to the bed leg 11. During packing and transportation, the screw needs to be removed and the main guardrail 2 should be stacked on top of the bed frame 1. Alternatively, the screw can not completely lock the lower crossbar 23 to the bed leg 11, so that the lower crossbar 23 is rotatably connected to the two bed legs 11. During transport and packing, the main guardrail 2 can be directly rotated and stacked on top of the bed frame 1, which also saves transport space.

[0046] Furthermore, to facilitate children getting in and out of bed, at least one of the two side rails 3 includes a side support 31 rotatably connected to the bed frame 1 and a side rail frame 32 rotatably connected to the side support 31. The side rail frame 32 and the side support 31 are also rotatably connected via a joint assembly 6. The first upright 3a is part of the side rail frame 32, and the second upright 3b is part of the side support 31. The side rail frame 32 can rotate in a direction close to or away from the main rail 2 to open or close the side rail 3. In this embodiment, both side rails 3 have a support 31 and a rotatable side rail frame 32. When the side rail frame 32 is closed, it and the side support 31 together form a barrier to protect the head or foot of the bed. When the side rail frame 32 is open, the child can leave the bed from the head or foot of the bed by himself or with the help of family members.

[0047] Furthermore, a locking switch is provided between the side guardrail frame 32 and the bed frame 1. Specifically, the locking switch is located between the first upright 3a near the splicing end and the bed leg 11. The locking switch can control the locking or unlocking of the side guardrail 3, allowing the side guardrail 3 to switch between open and closed states. For ease of operation, the locking switch is a self-spring-loaded pin assembly 13. The self-spring-loaded pin assembly 13 is low in cost and simple to operate, allowing the side guardrail 3 to quickly switch between open and closed states. The self-spring-loaded pin assembly 13 is an existing mechanism, and its specific structure is quite diverse, and can be as follows: Figure 4 The exposed pin assembly on the first upright 3a and the bed leg 11 can also be, to ensure the simple appearance of the assembled bed, as shown in the image. Figure 12The connector-type pin assembly 13, which is inserted into the first upright 3a and the bed leg 11 as described above, typically includes a pin seat 131 on the bed leg 11, a plug seat 132 on the first upright 3a, and a pin 133 between the two. The plug seat 132 has a pin hole, and the pin 133 is slidably connected to the pin seat 131. The pin seat 131 is provided with a spring acting on the pin 133, allowing the pin 133 to elastically extend into or disengage from the pin hole. At the same time, the pin seat 131 is provided with a control button 134, which can be a button or a push-pull button. In the locked state, the spring is compressed, and the pin 133 is locked in the pin hole. Applying the control button 134 can disengage the pin 133 from the pin hole. For the specific principle and internal structure, please refer to the content of the pin patent with publication number CN221761674, which will not be repeated here.

[0048] Example 2: This example differs from the examples above in that, as follows... Figure 11 As shown, the insertion structure in this embodiment includes a connector 6c fixed to one of the bottom end of the side upright and the top end of the bed leg 11, and a slot 11a fixed to the other of the bottom end of the side upright and the top end of the bed leg 11. In this embodiment, the connector 6c is set at the bottom end of the side upright and the slot 11a is set at the top end of the bed leg 11 for explanation. Unlike the above embodiment, the connector 6c is integrally formed at the bottom end of the side upright. The forming method can be welding or stamping, rather than by insertion. The bed leg 11 is a hollow structure and has a tubular slot 11a. The contour of the slot 11a of the connector 6c matches the contour of the connector 6c. The connector 6c is inserted into or removed from the slot 11a, so that the guardrail assembly is combined or separated from the bed frame 1. Similarly, the guardrail assembly and the bed leg 11 can form a plug-in connection.

[0049] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A multi-purpose bunk bed, characterized by, The bed frame (1) includes a bed frame (1) and a guardrail assembly. The bed frame (1) has a head end, a foot end, and a splicing end for joining with the main bed. The guardrail assembly includes a main guardrail (2) located at one end opposite to the splicing end and two side guardrails (3) located at the head end and the foot end, respectively. The main guardrail (2) is fixedly connected between the two side guardrails (3). The head end and the foot end of the bed frame (1) each have two bed legs (11), and each bed leg (11) is located at a corner of the bed frame (1). Each side guardrail (3) is provided with an insert structure between it and the two bed legs (11) at the head end or the foot end. The modular bed has a modular mode and an independent mode. In the modular mode, the modular end is connected to the main bed, and each side rail (3) is fixed to the corresponding bed leg (11) by a plug-in structure, so that the railing assembly surrounds the upper end of the bed frame (1). In the independent mode, the modular end is separated from the main bed, and each side rail (3) is pulled out from the corresponding bed leg (11), so that the railing assembly is separated from the bed frame (1). At this time, the modular bed switches to the independent mode.

2. The multi-purpose splicing bed according to claim 1, wherein: It also includes extension legs (14) for connecting with the bed legs (11); when the bed is in independent mode and the extension legs (14) are installed at the bottom of the bed legs (11), the bed switches to table support mode; when the extension legs (14) are removed, the bottom of the bed legs (11) contacts the ground, and the bed switches to tatami support mode.

3. The multi-purpose splicing bed according to claim 1, wherein: It also includes a lifting foot assembly (7) for connecting with the bed legs (11). The lifting foot assembly (7) includes a base (71) and a lifting seat (72) that is lifted and connected to the base (71). The lifting seat (72) is connected to the bed legs (11). When the bed is in the splicing mode, the lifting seat (72) is raised and lowered so that the upper end of the bed frame (1) is flush with the upper end of the main bed. When the bed is in the independent mode, the lifting seat (72) is raised and lowered to adjust the support height of the bed frame (1).

4. The multi-purpose splicing bed according to claim 1, wherein: It also includes a sofa upholstery (8). In the independent mode, the sofa upholstery (8) is placed on top of the bed frame (1), so that the bed switches to the sofa support mode.

5. The multi-purpose splicing bed according to claim 1, wherein: The side rail (3) includes two side uprights corresponding to the positions of the two bed legs (11) at the head or foot of the bed. Both the side uprights and the bed legs (11) are hollow tubes. The insertion structure includes an insert (6a) between the top of the bed leg (11) and the bottom of the corresponding side upright. Both ends of the insert (6a) have plugs (6b). The two plugs (6b) are inserted into or removed from the bed leg (11) and the side upright, respectively, so that the railing assembly is combined or separated from the bed frame (1).

6. The multi-purpose splicing bed according to claim 1, wherein: A connector (4) is provided between the main guardrail (2) and each side guardrail (3), and the connector (4) is detachably connected to both the main guardrail (2) and the corresponding side guardrail (3).

7. The multi-purpose splicing bed according to claim 1, wherein: At least one of the two side rails (3) includes a bracket (31) rotatably connected to the bed frame (1) and a side rail frame (32) rotatably connected to the bracket (31). The side rail frame (32) can rotate in a direction close to or away from the main rail (2) to open or close the side rail (3).

8. The multi-purpose mat as claimed in claim 7, wherein: A locking switch is provided between the side guardrail frame (32) and the bed frame (1). The locking switch can control the side guardrail (3) to lock or unlock, so that the side guardrail (3) can switch between open and closed states.

9. The multi-purpose mat as claimed in claim 8, wherein: The locking switch is a self-spring-loaded pin assembly (13).

10. The multi-purpose splicing bed according to claim 1, wherein: The side rail (3) includes two side posts corresponding to two bed legs (11) at the head or foot of the bed. The insertion structure includes a connector (6c) fixed to one of the bottom of the side post and the top of the bed leg (11), and a slot (11a) on the other side post and the top of the bed leg (11). The connector (6c) is inserted into or removed from the slot (11a) to combine or separate the rail assembly from the bed frame (1).

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