A detachable electric folding sofa bed

Abstract

The utility model discloses a detachable electric folding sofa bed, including sofa seat, bed board frame and drive assembly, the sofa seat includes a plurality of stand, one side fixed connection of stand is along sofa seat length direction and is arranged mechanical slide rail, drive assembly includes support arm assembly, sliding assembly, electric slide rail, electric sliding block and motor, support arm assembly articulates in one side of sliding assembly, one end of sliding assembly is connected in the slide groove of mechanical slide rail and with mechanical slide rail sliding connection, electric slide rail is located at the bottom of mechanical slide rail and is arranged in parallel with mechanical slide rail, be equipped with with electric slide rail sliding connection's electric sliding block in electric slide rail, electric sliding block with the detachable fixed of sliding assembly on its top, the utility model discloses convenient to use and good stability, and the failure rate is low.

Description

Technical Field

[0001] This utility model belongs to the field of electric sofa bed technology, specifically relating to a detachable electric folding sofa bed. Background Technology

[0002] A sofa bed is a piece of furniture that can be used as both a sofa and a bed. Modern home decor emphasizes simplicity, and multifunctional furniture is increasingly becoming a popular choice, with sofa beds being one example. In small apartments, a sofa bed is essential to accommodate occasional guests.

[0003] Folding sofa beds on the market come in various styles, including two-fold and three-fold. Some existing technologies use motors as the driving source to drive the folding of the sofa bed. However, most electric folding sofa beds currently use motors to directly drive the connecting rods or support arms to fold the sofa bed. This direct drive method can lead to a lack of stability when one of the connecting rods or support arms ages or after prolonged use, causing the bed frame to tilt. When the connecting rods or support arms malfunction, replacing the parts is too cumbersome, and without replacement or repair, the sofa bed may become unusable.

[0004] Chinese patent document CN214433158U discloses an electric folding sofa bed, including: a sofa seat with an internal cavity; a bed frame that is folded and stored in the cavity of the sofa seat, and unfolded into a bed state; and a drive device for driving the bed frame to open or fold. This utility model uses a rocker arm as the transmission element of the motor driving force. The rocker arm is directly driven by the motor, which can easily lead to a decrease in stability after the rocker arm ages or is used for a long time. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an electric folding sofa bed with good stability, low failure rate and detachable design.

[0006] The present invention provides a technical solution to solve the above-mentioned technical problems as follows: a detachable electric folding sofa bed, including a sofa seat, a bed frame, and a drive assembly. The sofa seat includes several uprights, and a mechanical slide rail is fixedly connected to one side of each upright along the length of the sofa seat. The drive assembly includes a support arm assembly, a sliding assembly, an electric slide rail, an electric slider, and a motor. The support arm assembly is hinged to one side of the sliding assembly. One end of the sliding assembly is engaged in the slide groove of the mechanical slide rail and slidably connected to the mechanical slide rail. The electric slide rail is located at the bottom of the mechanical slide rail and is parallel to the mechanical slide rail. An electric slider is provided inside the electric slide rail and slidably connected to the electric slide rail. The electric slider is detachably fixed to the sliding assembly at its top.

[0007] Preferably, the sliding assembly includes a mechanical slider and a connecting piece. The mechanical slider is engaged in the groove of the mechanical slide rail and slidably connected to the mechanical slide rail. The mechanical slider is detachably fixed to the electric slider at its bottom. The connecting piece is fixed to one side of the mechanical slider and hinged to the support arm assembly.

[0008] Preferably, the surface of the mechanical slider has at least four parallel bolt holes, wherein two adjacent bolt holes are provided with fastening bolts for detachably fixing the mechanical slider and the electric slider.

[0009] Preferably, the support arm assembly includes a tilting arm and a plurality of drive arms disposed at both ends of the tilting arm. The tilting arm is generally T-shaped, and a plurality of drive arms are hinged to the left and right ends of the tilting arm. The bottom end of the tilting arm is hinged to one side of the connecting piece.

[0010] Preferably, one end of the flipping arm is hinged to a first drive arm, one end of the first drive arm is hinged to the flipping arm, and the other end is hinged to a second drive arm. One side of the second drive arm is hinged to the first drive arm, and the other side is fixedly connected to the bed frame. A third drive arm is provided on the bed frame adjacent to the second drive arm. The top of the third drive arm is fixedly connected to the bed frame. The end of the third drive arm away from the second drive arm is hinged to a first fixed arm. One end of the first fixed arm is hinged to the third drive arm, and the other end is fixed to the sofa seat. The other end of the flipping arm is hinged to a fourth drive arm. One end of the fourth drive arm is hinged to the flipping arm, and the other end is hinged to a fifth drive arm. One end of the fifth drive arm is hinged to the fourth drive arm, and the other end is hinged to a sixth drive arm. One end of the sixth drive arm is hinged to the fifth drive arm, and the other end is hinged to a seventh drive arm. One end of the seventh drive arm is hinged to the sixth drive arm, and the other end is hinged to a second fixed arm. The bottom of the second fixed arm is fixedly connected to the bed frame.

[0011] Preferably, it further includes a movable support arm and a connecting support arm. A first movable support arm is provided on one side of the fifth drive arm. One end of the first movable support arm is hinged to the bed frame, and the other end is hinged to the middle of the fifth drive arm. A second movable support arm is provided on one side of the first movable support arm. One end of the second movable support arm is hinged to the middle of the first movable support arm, and the other end is hinged to a connecting support arm. The connecting support arm is generally U-shaped, and its bottom two ends are hinged and fixed to the bed frame. A third movable support arm is hinged to the end of the connecting support arm away from the second movable support arm. One end of the third movable support arm is hinged to the connecting support arm, and the other end is hinged to both the sixth drive arm and the seventh drive arm.

[0012] Preferably, the bed frame includes a first bed frame, a second bed frame, and a third bed frame. The first bed frame is hinged to the second bed frame, and the end of the second bed frame away from the first bed frame is hinged to a connecting arm. The third bed frame is hinged to the end of the connecting arm away from the second bed frame.

[0013] Preferably, one side of the second drive arm is hinged to the first drive arm, and the other side is fixedly connected to the first bed frame. A third drive arm is provided on the first bed frame adjacent to the second drive arm. The top of the third drive arm is fixedly connected to the first bed frame, the bottom of the second fixed force arm is fixedly connected to the third bed frame, and one end of the first movable support arm is hinged to the second bed frame.

[0014] The beneficial effects of this utility model are: (1) The detachable electric folding sofa bed of this utility model has set up double slide rails. Instead of the traditional method of directly driving the lever arm by the motor, it adopts the method of driving the electric slider, which drives the mechanical slider, which drives the flip lever arm. This ensures that the two sides of the bed frame can always run synchronously, which improves the stability and smoothness, thereby avoiding the tilting of the bed frame.

[0015] (2) In the present invention, when the motor or electric slider fails, the electric slider or motor can be disassembled and the mechanical slider can be manually driven to drive the flipping arm, thereby folding the sofa bed, thus avoiding the situation where the electric slider or motor cannot be used due to failure.

[0016] (3) The detachable electric folding sofa bed of this utility model has at least four bolt through holes in the mechanical slider, and the electric slider only needs to be detachably fixed to the mechanical slider through two of the adjacent bolt through holes, so that the left and right electric sliders can be used interchangeably. When the left electric slider fails and there is no good left electric slider to replace it, the right electric slider and its top mechanical slider can be detachably fixed through the other two adjacent bolt through holes in the four bolt through holes. Attached Figure Description

[0017] The following description, in conjunction with the accompanying drawings, further illustrates a detachable electric folding sofa bed according to this utility model.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a schematic diagram of the movable support arm and the connecting support arm in this utility model; Figure 4This is a partial structural schematic diagram of the drive component in this utility model; Figure 5 This is a schematic diagram of the sliding component structure in this utility model.

[0019] The above figures are labeled as follows: Sofa seat 1, upright 11, bed frame 2, first bed frame 21, second bed frame 22, third bed frame 23, drive assembly 3, support arm assembly 31, flipping arm 311, first drive arm 312, second drive arm 313, third drive arm 314, fourth drive arm 315, fifth drive arm 316, sixth drive arm 317, seventh drive arm 318, sliding assembly 32, mechanical slider 321, connecting piece 322, bolt through hole 323, electric slide rail 33, electric slider 34, motor 35, first fixed arm 36, second fixed arm 37, movable support arm 38, first movable support arm 381, second movable support arm 382, ​​third movable support arm 383, connecting support arm 39, mechanical slide rail 4. Detailed Implementation

[0020] Example 1 See Figures 1 to 5 This embodiment of a detachable electric folding sofa bed includes a sofa seat 1, a bed frame 2, and a drive assembly 3. The sofa seat 1 includes several uprights 11. A mechanical slide rail 4 arranged along the length of the sofa seat 1 is fixedly connected to one side of the uprights 11. The drive assembly 3 includes a support arm assembly 31, a sliding assembly 32, an electric slide rail 33, an electric slider 34, and a motor 35. The support arm assembly 31 is hinged to one side of the sliding assembly 32. One end of the sliding assembly 32 is engaged in the slide groove of the mechanical slide rail 4 and is slidably connected to the mechanical slide rail 4. The electric slide rail 33 is located at the bottom of the mechanical slide rail 4 and is arranged parallel to the mechanical slide rail 4. An electric slider 34 is provided inside the electric slide rail 33 and is slidably connected to the electric slide rail 33. The electric slider 34 is detachably fixed to the sliding assembly 32 at its top.

[0021] The sliding assembly 32 includes a mechanical slider 321 and a connecting piece 322. The mechanical slider 321 is engaged in the groove of the mechanical slide rail 4 and slidably connected to the mechanical slide rail 4. The mechanical slider 321 is detachably fixed to the electric slider 34 at its bottom. The connecting piece 322 is fixed to one side of the mechanical slider 321 and hinged to the support arm assembly 31. The surface of the mechanical slider 321 has four parallel bolt holes 323, two of which have fastening bolts for detachably fixing the mechanical slider 321 and the electric slider 34. The support arm assembly 31 includes a tilting arm 311 and several drive arms disposed at both ends of the tilting arm 311. The tilting arm 311 is generally T-shaped, and multiple drive arms are hinged to the left and right ends of the tilting arm 311. The bottom end of the tilting arm 311 is hinged to one side of the connecting piece 322.

[0022] A first drive arm 312 is hinged to one end of a tilting lever arm 311. One end of the first drive arm 312 is hinged to the tilting lever arm 311, and the other end is hinged to a second drive arm 313. One side of the second drive arm 313 is hinged to the first drive arm 312, and the other side is fixedly connected to the bed frame 2. A third drive arm 314 is provided on the bed frame 2 adjacent to the second drive arm 313. The top of the third drive arm 314 is fixedly connected to the bed frame 2. A first fixing lever arm 36 is hinged to the end of the third drive arm 314 away from the second drive arm 313. One end of the first fixing lever arm 36 is hinged to the third drive arm 314, and the other end... Fixed to the sofa seat 1; the other end of the flipping lever arm 311 is hinged to the fourth drive arm 315, one end of the fourth drive arm 315 is hinged to the flipping lever arm 311, and the other end is hinged to the fifth drive arm 316, one end of the fifth drive arm 316 is hinged to the fourth drive arm 315, and the other end is hinged to the sixth drive arm 317, one end of the sixth drive arm 317 is hinged to the fifth drive arm 316, and the other end is hinged to the seventh drive arm 318, one end of the seventh drive arm 318 is hinged to the sixth drive arm 317, and the other end is hinged to the second fixed lever arm 37, the bottom of the second fixed lever arm 37 is fixedly connected to the bed frame 2. It also includes a movable support arm 38 and a connecting support arm 39. A first movable support arm 381 is provided on one side of the fifth drive arm 316. One end of the first movable support arm 381 is hinged to the bed frame 2, and the other end is hinged to the middle of the fifth drive arm 316. A second movable support arm 382 is provided on one side of the first movable support arm 381. One end of the second movable support arm 382 is hinged to the middle of the first movable support arm 381, and the other end is hinged to the connecting support arm 39. The connecting support arm 39 is generally convex in shape, and its bottom two ends are hinged and fixed to the bed frame 2. A third movable support arm 383 is hinged to the end of the connecting support arm 39 away from the second movable support arm 382. One end of the third movable support arm 383 is hinged to the connecting support arm 39, and the other end is hinged together with the sixth drive arm 317 and the seventh drive arm 318.

[0023] The bed frame 2 includes a first bed frame 21, a second bed frame 22, and a third bed frame 23. The first bed frame 21 and the second bed frame 22 are hinged and fixed. The end of the second bed frame 22 away from the first bed frame 21 is hinged and fixed to a connecting support arm 39. The third bed frame 23 is hinged to the end of the connecting support arm 39 away from the second bed frame 22. One side of the second drive arm 313 is hinged to the first drive arm 312, and the other side is fixedly connected to the first bed frame 21. A third drive arm 314 is provided on the first bed frame 21 adjacent to the second drive arm 313. The top of the third drive arm 314 is fixedly connected to the first bed frame 21. The bottom of the second fixed force arm 37 is fixedly connected to the third bed frame 23. One end of the first movable support arm 381 is hinged to the second bed frame 22.

[0024] This embodiment of a detachable electric folding sofa bed, during use, is controlled by a remote control switch wired to the motor 35. When in operation, the electric slider 34 slides on the electric slide rail 33. The electric slider 34 and the mechanical slider 321 are detachably fixed. The electric slider 34 drives the mechanical slider 321 to slide in the mechanical slide rail 4. The mechanical slider 321 then drives the flipping arm 311, which is hinged to the connecting piece 322 on one side. The flipping arm 311 is the main force-bearing component in the support arm assembly 31, which in turn drives other drive arms, movable support arms, and connecting support arms 39, thereby folding the bed frame 2. Obviously, the above embodiments are merely examples to clearly illustrate the embodiments of this utility model, and are not intended to limit the embodiments of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, these obvious variations or modifications derived from the spirit of this utility model are still within the protection scope of this utility model.

Claims

1. A detachable electric folding sofa bed, characterized in that, The device includes a sofa seat (1), a bed frame (2), and a drive assembly (3). The sofa seat (1) includes several columns (11). A mechanical slide rail (4) is fixedly connected to one side of the column (11) along the length of the sofa seat (1). The drive assembly (3) includes a support arm assembly (31), a sliding assembly (32), an electric slide rail (33), an electric slider (34), and a motor (35). The support arm assembly (31) is hinged to one side of the sliding assembly (32). One end of the sliding assembly (32) is engaged in the groove of the mechanical slide rail (4) and is slidably connected to the mechanical slide rail (4). The electric slide rail (33) is located at the bottom of the mechanical slide rail (4) and is parallel to the mechanical slide rail (4). The electric slide rail (33) is provided with an electric slider (34) that is slidably connected to the electric slide rail (33). The electric slider (34) is detachably fixed to the sliding assembly (32) at its top.

2. A detachable electric folding sofa bed according to claim 1, characterized in that, The sliding assembly (32) includes a mechanical slider (321) and a connecting piece (322). The mechanical slider (321) is engaged in the groove of the mechanical slide rail (4) and slidably connected to the mechanical slide rail (4). The mechanical slider (321) is detachably fixed to the electric slider (34) at its bottom. The connecting piece (322) is fixed to one side of the mechanical slider (321) and hinged to the support arm assembly (31).

3. A detachable electric folding sofa bed according to claim 2, characterized in that, The surface of the mechanical slider (321) is provided with at least four parallel bolt holes (323), wherein two adjacent bolt holes (323) are provided with fastening bolts for detachably fixing the mechanical slider (321) and the electric slider (34).

4. A detachable electric folding sofa bed according to claim 2, characterized in that, The arm assembly (31) includes a tilting arm (311) and several drive arms disposed at both ends of the tilting arm (311). The tilting arm (311) is T-shaped in general. Multiple drive arms are hinged to the left and right ends of the tilting arm (311). The bottom end of the tilting arm (311) is hinged to one side of the connecting piece (322).

5. A detachable electric folding sofa bed according to claim 4, characterized in that, One end of the flipping lever arm (311) is hinged to a first drive arm (312), one end of the first drive arm (312) is hinged to the flipping lever arm (311), and the other end is hinged to a second drive arm (313). One side of the second drive arm (313) is hinged to the first drive arm (312), and the other side is fixedly connected to the bed frame (2). A third drive arm (314) is provided on the bed frame (2) adjacent to the second drive arm (313). The top of the third drive arm (314) is fixedly connected to the bed frame (2). The end of the third drive arm (314) away from the second drive arm (313) is hinged to a first fixing lever arm (36). One end of the first fixing lever arm (36) is hinged to the third drive arm (314). One end is fixed to the sofa seat (1); the other end of the flipping lever (311) is hinged to the fourth drive arm (315), one end of the fourth drive arm (315) is hinged to the flipping lever (311), and the other end is hinged to the fifth drive arm (316), one end of the fifth drive arm (316) is hinged to the fourth drive arm (315), and the other end is hinged to the sixth drive arm (317), one end of the sixth drive arm (317) is hinged to the fifth drive arm (316), and the other end is hinged to the seventh drive arm (318), one end of the seventh drive arm (318) is hinged to the sixth drive arm (317), and the other end is hinged to the second fixed lever (37), the bottom of the second fixed lever (37) is fixedly connected to the bed frame (2).

6. A detachable electric folding sofa bed according to claim 5, characterized in that, It also includes a movable support arm (38) and a connecting support arm (39). A first movable support arm (381) is provided on one side of the fifth drive arm (316). One end of the first movable support arm (381) is hinged to the bed frame (2), and the other end is hinged to the middle of the fifth drive arm (316). A second movable support arm (382) is provided on one side of the first movable support arm (381). One end of the second movable support arm (382) is hinged to the middle of the first movable support arm (381), and the other end is hinged to the connecting support arm (39). The connecting support arm (39) is convex in shape, and its bottom two ends are hinged to the bed frame (2). A third movable support arm (383) is hinged to the end of the connecting support arm (39) away from the second movable support arm (382). One end of the third movable support arm (383) is hinged to the connecting support arm (39), and the other end is hinged to the sixth drive arm (317) and the seventh drive arm (318).

7. A detachable electric folding sofa bed according to claim 6, characterized in that, The bed frame (2) includes a first bed frame (21), a second bed frame (22) and a third bed frame (23). The first bed frame (21) and the second bed frame (22) are hinged and fixed. The end of the second bed frame (22) away from the first bed frame (21) is hinged and fixed to a connecting arm (39). The third bed frame (23) is hinged to the end of the connecting arm (39) away from the second bed frame (22).

8. A detachable electric folding sofa bed according to claim 7, characterized in that, One side of the second drive arm (313) is hinged to the first drive arm (312), and the other side is fixedly connected to the first bed frame (21). A third drive arm (314) is provided on the first bed frame (21) adjacent to the second drive arm (313). The top of the third drive arm (314) is fixedly connected to the first bed frame (21). The bottom of the second fixed force arm (37) is fixedly connected to the third bed frame (23). One end of the first movable support arm (381) is hinged to the second bed frame (22).

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