Multifunctional bed support and working method thereof

Abstract

The invention relates to a multifunctional bed support and a working method thereof.The multifunctional bed support comprises a bottom frame and a footrest telescopic device, the footrest telescopic device comprises a mounting frame movably connected to the front end of the bottom frame, the mounting frame is provided with a footrest telescopic device body, and the left side and the right side of the mounting frame are movably connected with driving arms respectively; connecting rod mechanisms are arranged on the left side and the right side of the bottom frame respectively, the tail ends of the driving arms on the left side and the right side are connected with the connecting rod mechanisms on the left side and the right side respectively, and a bed frame assembly is connected between the connecting rod mechanisms on the left side and the right side and comprises a first frame body, a second frame body, a third frame body and a fourth frame body which are sequentially and movably connected end to end; the connecting rod mechanisms on the left and right sides are suitable for driving the bed frame assembly to unfold or fold; when the multifunctional bed bracket is used, the structure interference phenomenon is avoided, and the multifunctional bed bracket has the characteristic of small seat depth when being used as a sofa.

Description

Technical Field

[0001] The invention relates to the technical field of bed accessories, and in particular to a multifunctional bed support and a working method thereof. Background Art

[0002] The multifunctional bed support of the prior art comprises a bottom frame and a footrest extension and retractable device, wherein the footrest extension and retractable device comprises a mounting frame vertically fixed to the front end of the bottom frame, a footrest extension and retractable device body is arranged on the mounting frame, and a connecting rod mechanism is respectively arranged on the left and right sides of the bottom frame, a bed frame assembly is connected between the connecting rod mechanisms on the left and right sides, the bed frame assembly comprises a first frame body, a second frame body, a third frame body and a fourth frame body which are movably connected end to end in sequence, and the connecting rod mechanisms on the left and right sides are suitable for driving the bed frame assembly to unfold or fold; in an initial state, the bed frame assembly is in a folded state, the first frame body, the second frame body, the third frame body and the fourth frame body are enclosed in a rectangle in sequence, the mounting frame is located at the front side of the folded bed frame assembly, and the multifunctional bed support can realize the sofa function at this time; after the bed frame assembly is unfolded, the first frame body, the second frame body, the third frame body and the fourth frame body are arranged in a line in sequence from front to back, and the unfolded bed frame assembly is located above the mounting frame, and the multifunctional bed support can realize the bed function at this time.

[0003] The multifunctional bed support of the prior art has the following problems: the installation frame is vertically fixed to the front end of the bottom frame, and the footrest telescopic device increases the seat depth of the sofa. The increased seat depth of the sofa will make it difficult for the user's back to contact the backrest of the sofa, affecting the user's comfort. In order to allow the user's back to contact the backrest of the sofa, the backrest of the sofa needs to be designed to be thicker, which will make the sofa bloated and unsightly. Another solution is to reduce the distance between the footrest telescopic device and the folded bed frame assembly, thereby reducing the seat depth of the sofa, but this solution will bring new problems, namely, interference will occur between the connecting rod mechanism and the installation frame when it moves; how to reduce the seat depth of the sofa while ensuring the sofa is beautiful and the structure does not interfere has become a technical problem that technicians in this field are eager to solve. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a multifunctional bed support which will not produce structural interference when in use and has the characteristic of small seat depth when used as a sofa.

[0005] In order to solve the above technical problems, the present invention provides a multifunctional bed support, including a bottom frame and a footrest extension device, the footrest extension device includes a mounting frame movably connected to the front end of the bottom frame, the mounting frame is provided with a footrest extension device body, the left and right sides of the mounting frame are movably connected with driving arms, the left and right sides of the bottom frame are respectively provided with connecting rod mechanisms, the tail ends of the left and right driving arms are respectively connected to the left and right connecting rod mechanisms, a bed frame assembly is connected between the left and right connecting rod mechanisms, and the bed frame assembly includes a first frame body and a second frame body which are movably connected head to tail in sequence. , a third frame and a fourth frame, the connecting rod mechanisms on the left and right sides are suitable for driving the bed frame assembly to unfold or fold; in an initial state, the bed frame assembly is in a folded state, the first frame, the second frame, the third frame and the fourth frame are sequentially enclosed in a rectangle, and the mounting frame is vertically arranged and located at the front side of the folded bed frame assembly; when the bed frame assembly is unfolded, the connecting rod mechanism drives the mounting frame to swing and tilt forward, and after the bed frame assembly is unfolded, the first frame, the second frame, the third frame and the fourth frame are sequentially arranged in a line front to back, and the unfolded bed frame assembly is located above the mounting frame.

[0006] Further preferably, the footrest retractable device body includes a retractable component and a driving device arranged on a mounting frame, and the driving device is used to drive the retractable component to extend or contract, so that the user's legs and feet can be lifted when the retractable component is extended, and the user's legs and feet can be dropped when the retractable component is contracted.

[0007] Further preferably, the connecting rod mechanism includes a first flip component, a second flip component, and a third flip component, the first flip component and the second flip component are connected, the first flip component is used to drive the first frame and the second frame to rotate relative to each other, the first flip component is actuated to link the second flip component to actuate, the second flip component is used to drive the second frame and the third frame to rotate relative to each other, the third flip component is used to drive the third frame to perform lifting and lowering movements and the third frame and the fourth frame to rotate relative to each other.

[0008] Further preferably, the first flip assembly includes a rotating rod arranged on the second frame body, one end of the rotating rod is movably connected with a swing arm, the end of the swing arm away from the rotating rod is movably connected with a bending rod, the bending rod is rotatably arranged on the first frame body, the end of the bending rod away from the swing arm is provided with a connecting rod extending in a bending direction away from the bending rod, the end of the connecting rod away from the bending rod is provided with a supporting leg, the bending rod is provided with a limiting shaft extending toward the first frame body, a hand pull rod is provided between the left and right supporting legs, and the left and right sides of the fourth frame are respectively provided with supporting shafts; after the bed frame assembly is unfolded, the supporting legs are supported on the ground, the limiting shaft abuts against the first frame body and is located above the first frame body; when the bed frame assembly is in a folded state, the supporting legs abut against the supporting shafts.

[0009] Further preferably, the second flip assembly includes a second connecting rod movably connected to the other end of the rotating rod, and one end of the second connecting rod away from the rotating rod is movably connected to the third frame.

[0010] Further preferably, the third flipping assembly includes a Z-shaped front rocker and a rear rocker movably connected to the bottom frame, the tail end of the driving arm is movably connected to the Z-shaped front rocker, the middle part of the Z-shaped front rocker is movably connected to the first connecting rod, the end of the first connecting rod away from the Z-shaped front rocker is movably connected to the middle part of the rear rocker, the end of the rear rocker away from the bottom frame is movably connected to the fourth frame, the end of the Z-shaped front rocker away from the bottom frame is movably connected to the third frame, the end of the Z-shaped front rocker away from the bottom frame extends out a rocker arm, the end of the rocker arm away from the Z-shaped front rocker is movably connected to a pull rod, and the end of the pull rod away from the rocker arm is movably connected to the second frame.

[0011] A working method of the multifunctional bed support comprises the following steps: 1) In the initial state, the bed frame assembly is in a folded state, the first frame body, the second frame body, the third frame body and the fourth frame body are enclosed in a rectangular shape in sequence, the mounting frame is vertically arranged and located at the front side of the folded bed frame assembly, the footrest telescopic device uses gravity to achieve a self-locking effect, at this time the multifunctional bed support can realize a sofa function, the footrest telescopic device can lift the user's legs and feet when extended, and can drop the user's legs and feet when contracted; 2) To unfold the bed frame assembly, it is necessary to pull the handle upwards by hand to drive the left and right curved rods to rotate synchronously, the first flip assembly drives the first frame to flip upward, the first flip assembly is linked to the second flip assembly when it is actuated, the second flip assembly drives the second frame to flip forward, the second frame that flips forward drives the third flip assembly to actuate, the Z-shaped front rocker of the third flip assembly swings upward, driving the mounting frame to swing and tilt forward, the third frame moves upward and the fourth frame flips backward, after the bed frame assembly is unfolded, the first frame, the second frame, the third frame and the fourth frame are arranged in a line front to back, and the unfolded bed frame assembly is located above the mounting frame. At this time, the multifunctional bed bracket can realize the bed function.

[0012] The beneficial effects of the present invention are as follows: when the bed frame assembly is unfolded, the connecting rod mechanism drives the mounting frame to swing forward and tilt, and the tilted footrest telescopic device will not interfere with the moving connecting rod mechanism, so the distance between the footrest telescopic device and the folded bed frame assembly can be designed to be smaller, thereby achieving the effect of reducing the sofa seat depth; the multifunctional bed support of the present invention will not produce structural interference when in use, and has the characteristic of a small seat depth when used as a sofa. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to clearly illustrate the innovative principle of the invention and its advantages over the existing multifunctional bed supports, possible embodiments are described below by non-limiting examples of the application of the principle with the aid of the accompanying drawings. In the drawings: Figure 1 It is a schematic diagram of the multifunctional bed support of the present invention in a sofa function state; Figure 2 for Figure 1 The main view; Figure 3 is a three-dimensional diagram of the footrest retractable device in an extended state; Figure 4 for Figure 3 The main view; Figure 5 is a three-dimensional diagram of the bed frame assembly when it is unfolded; Figure 6 for Figure 5 The main view; Figure 7 It is a schematic diagram of the multifunctional bed support of the present invention in the bed function state; Figure 8 for Figure 7 The main view; Fig. 9 1 is an exploded view of the bed frame assembly. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0015] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0016] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0017] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0018] like Figure 1-9 A multifunctional bed support comprises a bottom frame 1 and a footrest telescopic device, wherein the footrest telescopic device comprises a mounting frame 2 movably connected to the front end of the bottom frame 1, a footrest telescopic device body 3 is arranged on the mounting frame 2, a driving arm 4 is movably connected to the left and right sides of the mounting frame 2, at least three supporting feet are arranged at the bottom of the bottom frame 1, a connecting rod mechanism is arranged on the left and right sides of the bottom frame 1, the tail ends of the driving arms 4 on the left and right sides are respectively connected to the connecting rod mechanisms on the left and right sides, a bed frame assembly is connected between the connecting rod mechanisms on the left and right sides, and the bed frame assembly comprises a first frame body 6 and a second frame body 6 which are movably connected head to tail in sequence. 7, the third frame 8 and the fourth frame 9, the connecting rod mechanisms on the left and right sides are suitable for driving the bed frame assembly to unfold or fold; in the initial state, the bed frame assembly is in a folded state, the first frame 6, the second frame 7, the third frame 8 and the fourth frame 9 are enclosed in sequence to form a rectangle, and the mounting frame 2 is vertically arranged and located on the front side of the folded bed frame assembly; when the bed frame assembly is unfolded, the connecting rod mechanism drives the mounting frame 2 to swing forward and tilt, and after the bed frame assembly is unfolded, the first frame 6, the second frame 7, the third frame 8 and the fourth frame 9 are arranged in a line front to back, and the unfolded bed frame assembly is located above the mounting frame 2.

[0019] Preferably, the footrest retractable device body 3 includes a retractable component and a driving device arranged on the mounting frame 2, and the driving device is used to drive the retractable component to extend or contract, and the user's legs and feet can be lifted when the retractable component is extended, and the user's legs and feet can be dropped when the retractable component is contracted.

[0020] Preferably, the connecting rod mechanism includes a first flip assembly 10, a second flip assembly 11, and a third flip assembly 12. The first flip assembly 10 and the second flip assembly 11 are connected. The first flip assembly 10 is used to drive the first frame 6 and the second frame 7 to rotate relative to each other. When the first flip assembly 10 is actuated, the second flip assembly 11 is linked to the actuation. The second flip assembly 11 is used to drive the second frame 7 and the third frame 8 to rotate relative to each other. The third flip assembly 12 is used to drive the third frame 8 to perform lifting and lowering movements and the third frame 8 and the fourth frame 9 to rotate relative to each other.

[0021] Preferably, the first flip assembly 10 includes a rotating rod 18 arranged on the second frame body 7, one end of the rotating rod 18 is movably connected to a swing arm 20, and the end of the swing arm 20 away from the rotating rod 18 is movably connected to a bending rod 21, the bending rod 21 is rotatably arranged on the first frame body 6, the end of the bending rod 21 away from the swing arm 20 is provided with a connecting rod 22 extending in a bending direction away from the bending rod 21, the end of the connecting rod 22 away from the bending rod 21 is provided with a supporting leg 23, the bending rod 21 is provided with a limiting shaft 24 extending toward the first frame body 6, a hand pull rod 26 is provided between the left and right supporting legs 23, and the left and right sides of the fourth frame body 9 are respectively provided with supporting shafts 25; after the bed frame assembly is unfolded, the supporting legs 23 are supported on the ground, the limiting shaft 24 is abutted against the first frame body 6 and is located above the first frame body 6; when the bed frame assembly is in a folded state, the supporting legs 23 are abutted against the supporting shaft 25.

[0022] Preferably, the second flip assembly 11 includes a second connecting rod 19 movably connected to the other end of the rotating rod 18 , and one end of the second connecting rod 19 away from the rotating rod 18 is movably connected to the third frame 8 .

[0023] Preferably, the third flip assembly 12 includes a Z-shaped front rocker 13 and a rear rocker 14 movably connected to the bottom frame 1, the tail end of the driving arm 4 is movably connected to the Z-shaped front rocker 13, the middle part of the Z-shaped front rocker 13 is movably connected to a first connecting rod 15, one end of the first connecting rod 15 away from the Z-shaped front rocker 13 is movably connected to the middle part of the rear rocker 14, one end of the rear rocker 14 away from the bottom frame 1 is movably connected to the fourth frame body 9, one end of the Z-shaped front rocker 13 away from the bottom frame 1 is movably connected to the third frame body 8, one end of the Z-shaped front rocker 13 away from the bottom frame 1 extends out a rocker rod 17, one end of the rocker rod 17 away from the Z-shaped front rocker 13 is movably connected to a pull rod 16, and one end of the pull rod 16 away from the rocker rod 17 is movably connected to the second frame body 7. Example

[0024] A working method of the multifunctional bed support according to embodiment 1 comprises the following steps: 1) In the initial state, if Figure 1-4 , the bed frame assembly is in a folded state, the first frame body 6, the second frame body 7, the third frame body 8 and the fourth frame body 9 are enclosed in a rectangular shape in sequence, the mounting frame 2 is vertically arranged and located at the front side of the folded bed frame assembly, and the footrest extension device uses gravity to achieve a self-locking effect. At this time, the multifunctional bed bracket can realize the sofa function, such as Figure 3-4 When the footrest extension device is extended, the user's legs and feet can be lifted. Figure 1-2 When the footrest extension device is retracted, the user's legs and feet can be dropped down; 2) If Figure 5-6 To unfold the bed frame assembly, the hand pull rod 26 needs to be pulled upward by hand to drive the left and right curved rods 21 to rotate synchronously, the first flip assembly 10 drives the first frame 6 to flip upward, the first flip assembly 10 is linked to the second flip assembly 11 when it moves, the second flip assembly 11 drives the second frame 7 to flip forward, the second frame 7 that flips forward drives the third flip assembly 12 to move, the Z-shaped front rocker 13 of the third flip assembly 12 swings upward, drives the installation frame 2 to swing forward and tilt, the third frame 8 moves up and the fourth frame 9 flips backward, as shown in FIG. Figure 7-8 After the bed frame assembly is unfolded, the first frame body 6, the second frame body 7, the third frame body 8 and the fourth frame body 9 are arranged in a line in front and back, and the unfolded bed frame assembly is located above the installation frame 2. At this time, the multifunctional bed bracket can realize the bed function.

[0025] When the bed frame assembly is unfolded, the connecting rod mechanism drives the mounting frame 2 to swing forward and tilt. The tilted footrest telescopic device will not interfere with the moving connecting rod mechanism. Therefore, the distance between the footrest telescopic device and the folded bed frame assembly can be designed to be smaller, thereby achieving the effect of reducing the sofa seat depth. The multifunctional bed support of this embodiment will not produce structural interference when in use, and has the characteristic of a small seat depth when used as a sofa.

[0026] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A multifunctional bed support, comprising a bottom frame (1) and a footrest extension device, characterized in that: The footrest retractable device comprises a mounting frame (2) movably connected to the front end of the base frame (1); the mounting frame (2) is provided with a footrest retractable device body (3); the left and right sides of the mounting frame (2) are respectively movably connected with driving arms (4); the left and right sides of the base frame (1) are respectively provided with connecting rod mechanisms; the tail ends of the left and right driving arms (4) are respectively connected to the left and right connecting rod mechanisms; a bed frame assembly is connected between the left and right connecting rod mechanisms; the bed frame assembly comprises a first frame body (6), a second frame body (7), a third frame body (8) and a fourth frame body (9) which are movably connected end to end in sequence; the left and right connecting rod mechanisms are The rod mechanism is suitable for driving the bed frame assembly to unfold or fold; in an initial state, the bed frame assembly is in a folded state, the first frame body (6), the second frame body (7), the third frame body (8) and the fourth frame body (9) are sequentially enclosed to form a rectangle, and the mounting frame (2) is vertically arranged and located at the front side of the folded bed frame assembly; when the bed frame assembly is unfolded, the connecting rod mechanism drives the mounting frame (2) to swing forward and tilt, and after the bed frame assembly is unfolded, the first frame body (6), the second frame body (7), the third frame body (8) and the fourth frame body (9) are sequentially arranged in a line front to back, and the unfolded bed frame assembly is located above the mounting frame (2).

2. The multifunctional bed support according to claim 1, characterized in that: The connecting rod mechanism comprises a first flip assembly (10), a second flip assembly (11), and a third flip assembly (12); the first flip assembly (10) and the second flip assembly (11) are connected; the first flip assembly (10) is used to drive the first frame (6) and the second frame (7) to rotate relative to each other; when the first flip assembly (10) moves, the second flip assembly (11) moves in conjunction; the second flip assembly (11) is used to drive the second frame (7) and the third frame (8) to rotate relative to each other; and the third flip assembly (12) is used to drive the third frame (8) to move up and down and the third frame (8) and the fourth frame (9) to rotate relative to each other.

3. The multifunctional bed support according to claim 2, characterized in that: The first flip assembly (10) comprises a rotating rod (18) arranged on the second frame (7), one end of the rotating rod (18) is movably connected to a swing arm (20), one end of the swing arm (20) away from the rotating rod (18) is movably connected to a bending rod (21), the bending rod (21) is rotatably arranged on the first frame (6), one end of the bending rod (21) away from the swing arm (20) is provided with a connecting rod (22) extending in a bending direction away from the bending rod (21), and one end of the connecting rod (22) away from the bending rod (21) is provided with A support leg (23), a limit shaft (24) extending toward the first frame (6) is provided on the bent rod (21), a hand pull rod (26) is provided between the left and right support legs (23), and a support shaft (25) is provided on the left and right sides of the fourth frame (9); after the bed frame assembly is unfolded, the support leg (23) is supported on the ground, the limit shaft (24) abuts against the first frame (6) and is located above the first frame (6); when the bed frame assembly is in a folded state, the support leg (23) abuts against the support shaft (25).

4. The multifunctional bed support according to claim 3, characterized in that: The second flip assembly (11) comprises a second connecting rod (19) movably connected to the other end of the rotating rod (18), and one end of the second connecting rod (19) away from the rotating rod (18) is movably connected to the third frame (8).

5. The multifunctional bed support according to claim 4, characterized in that: The third flip assembly (12) comprises a Z-shaped front rocker (13) and a rear rocker (14) movably connected to the bottom frame (1); the tail end of the driving arm (4) is movably connected to the Z-shaped front rocker (13); the middle part of the Z-shaped front rocker (13) is movably connected to a first connecting rod (15); one end of the first connecting rod (15) away from the Z-shaped front rocker (13) is movably connected to the middle part of the rear rocker (14); the rear rocker (14) is away from the bottom frame. One end of the Z-shaped front rocker (13) away from the bottom frame (1) is movably connected to the fourth frame (9), one end of the Z-shaped front rocker (13) away from the bottom frame (1) is movably connected to the third frame (8), one end of the Z-shaped front rocker (13) away from the bottom frame (1) extends out a swing rod (17), one end of the swing rod (17) away from the Z-shaped front rocker (13) is movably connected to a pull rod (16), and one end of the pull rod (16) away from the swing rod (17) is movably connected to the second frame (7).

6. A method for operating the multifunctional bed support according to claim 5, comprising the following steps: 1) In an initial state, the bed frame assembly is in a folded state, the first frame body (6), the second frame body (7), the third frame body (8) and the fourth frame body (9) are sequentially enclosed to form a rectangle, and the mounting frame (2) is vertically arranged and located at the front side of the folded bed frame assembly; 2) To unfold the bed frame assembly, the hand pull rod (26) is manually pulled upward to drive the left and right curved rods (21) to rotate synchronously, the first flip assembly (10) drives the first frame (6) to flip upward, the first flip assembly (10) is linked to the second flip assembly (11) to move, the second flip assembly (11) drives the second frame (7) to flip forward, the second frame (7) flipping forward drives the third flip assembly (12) to move, the Z-shaped front rocker (13) of the third flip assembly (12) swings upward, drives the installation frame (2) to swing forward and tilt, the third frame (8) moves upward and the fourth frame (9) flips backward, after the bed frame assembly is unfolded, the first frame (6), the second frame (7), the third frame (8) and the fourth frame (9) are arranged in a straight line in front and back, and the unfolded bed frame assembly is located above the installation frame (2).

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