A folding multi-functional sofa bed

Abstract

This utility model relates to the field of sofa bed technology and discloses a folding multifunctional sofa bed, including a support frame. Each support frame has slide rails installed inside. A U-shaped frame is slidably connected inside two slide rails. Support legs are evenly fixedly connected to the bottom of the U-shaped frame. A rack is fixedly connected to one end of the U-shaped frame, and a gear is meshed with the teeth of the rack. A rotating shaft is fixedly connected inside the gear, and a handle is fixedly connected to the other end of the rotating shaft. A locking screw is threaded into the handle. Limit holes are evenly formed inside one of the support frames, and one end of the locking screw is threaded into the limit hole. In this utility model, rotating the handle drives the gear to rotate, which in turn causes the rack and U-shaped frame to slide within the slide rails. The support legs extend or retract accordingly. When adjusted to a reclining mode, the support legs extend to provide more stable support for the backrest, preventing wobbling due to uneven pressure on the backrest.

Description

Technical Field

[0001] This utility model relates to the field of sofa bed technology, and in particular to a folding multifunctional sofa bed. Background Technology

[0002] A folding multi-functional sofa bed is an innovative type of furniture that integrates the functions of a sofa, bed, and storage. It is especially suitable for small apartments, rental properties, or families that need to make flexible use of space. The sofa bed is used as a sofa in normal times, and can be unfolded into a bed when you need to rest. It does not take up space when folded into a sofa, so a folding multi-functional sofa bed is needed.

[0003] In existing sofa beds, the backrest is not supported when unfolded, relying only on the front end of the support frame, forming a single-point structure. The weight of a person lying down will cause that end of the bed to sink, resulting in reduced comfort during use. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a folding multifunctional sofa bed, which aims to improve the problem that when the backrest of the sofa bed is unfolded, the backrest position has no support and only relies on the front end of the support frame for support, forming a single-point structure. The weight of the human body when lying down will cause that end of the bed to sink, resulting in a reduction in comfort during use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a folding multifunctional sofa bed, comprising a support frame symmetrically arranged, each support frame having a slide rail installed inside, and a U-shaped frame slidably connected inside two of the slide rails. Support legs are uniformly fixedly connected to the bottom of each U-shaped frame, and a rack is fixedly connected to one end of each U-shaped frame. A gear is meshed with the tooth end of the rack, and a rotating shaft is fixedly connected inside the gear. One end of the rotating shaft is rotatably connected to the inside of the support frame, and the other end of the rotating shaft is fixedly connected to a handle. A locking screw is threaded inside the handle. Limiting holes are uniformly formed inside one of the support frames, and one end of the locking screw is threaded into the limiting hole. A folding assembly is installed between the inner walls of the two support frames.

[0006] By adopting the above technical solution, when the backrest support needs to be adjusted, turning the handle drives the gear to rotate, which in turn causes the rack and U-shaped frame to slide in the slide rail. The support legs extend or retract accordingly. When adjusted to the reclining mode, the support legs extend to provide more stable support for the backrest and prevent wobbling due to uneven force on the backrest. After the U-shaped frame is adjusted to the appropriate position, the locking screw is screwed into the corresponding limit hole to accurately fix the position of the U-shaped frame. This improves the problem that the backrest has no support and only relies on the front end of the support frame for support, forming a single-point structure. The weight of the human body when lying down will cause that end of the bed to sink, resulting in reduced comfort during use.

[0007] Preferably, a sofa seat is fixedly connected to one side of each of the two support frames, a first sponge pad is installed on the top of the sofa seat, and a second sponge pad is installed on the top of the first sponge pad.

[0008] Preferably, the folding assembly includes a sliding groove, and the inner walls of both support frames are provided with sliding grooves. Sliding strips are slidably connected in the sliding grooves of the support frames. An extension seat is fixedly connected to one side of each of the two sliding strips, and a handle is fixedly connected to one side of each extension seat.

[0009] Preferably, a damping shaft is rotatably connected between the two sides of the two support frames, and a backrest is fixedly connected to the outer wall of the damping shaft.

[0010] Preferably, the extension seat is internally fixedly connected to a partition, which is arranged in a cross shape inside the extension seat.

[0011] Preferably, rollers are evenly installed on the bottom side of the extension seat, and the axis of the rollers is perpendicular to the slide groove.

[0012] Preferably, one of the support frames has symmetrically opened screw holes inside, one end of the screw hole is opened into the interior of the slide groove, and a limit screw is threadedly connected to the screw hole of the support frame, and one end of the limit screw is threadedly connected to the extension seat.

[0013] Preferably, when the backrest and the sofa seat are horizontally arranged, the bottom side of the backrest is in contact with the top side of the U-shaped frame.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, when it is necessary to adjust the backrest support, turn the handle to drive the gear to rotate, thereby causing the rack and U-shaped frame to slide in the slide rail. The support legs extend or retract accordingly. When adjusted to the reclining mode, the support legs extend to provide more stable support for the backrest, avoiding wobbling due to uneven force on the backrest and improving the user's comfort during use. After the U-shaped frame is adjusted to the appropriate position, the locking screw is screwed into the corresponding limiting hole to accurately fix the position of the U-shaped frame.

[0016] 2. In this utility model, by holding the handle, the extension seat is pulled outward with the help of the rollers. The slide bar slides smoothly along the slide groove. When the extension seat is pulled out to its maximum stroke, the limiting screw is rotated so that one end of it is screwed into the corresponding hole inside the extension seat to fix the extension seat. The backrest is laid flat until it is level with the sofa seat, and the bottom side of the backrest contacts the top side of the U-shaped frame. The second sponge pad on the top of the sofa seat is laid flat on the top of the extension seat to form a complete bed surface with the first sponge pad. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a folding multifunctional sofa bed proposed in this utility model;

[0018] Figure 2 This is a partial structural diagram of the support frame of a folding multifunctional sofa bed proposed in this utility model;

[0019] Figure 3 This is a partial structural diagram of the backrest of a folding multifunctional sofa bed proposed in this utility model;

[0020] Figure 4 This is a partial structural diagram of the extension seat of a folding multifunctional sofa bed proposed in this utility model;

[0021] Figure 5 This is a partial structural diagram of the sponge pad of a folding multifunctional sofa bed proposed in this utility model.

[0022] Legend:

[0023] 1. Support frame; 2. Slide rail; 201. U-shaped frame; 202. Rack; 203. Gear; 204. Rotating shaft; 205. Handle; 206. Limiting hole; 207. Locking screw; 208. Support leg; 3. Sofa seat; 301. Sponge pad one; 302. Sponge pad two; 4. Slide groove; 401. Slide bar; 402. Extension seat; 403. Handle; 5. Backrest; 6. Divider; 7. Roller; 8. Screw hole; 801. Limiting screw. Detailed Implementation

[0024] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Reference Figures 1-3This utility model provides an embodiment of a folding multifunctional sofa bed, including a support frame 1. The support frames 1 are symmetrically arranged, and each support frame 1 has a slide rail 2 installed inside. A U-shaped frame 201 is slidably connected inside the two slide rails 2. Support legs 208 are uniformly fixedly connected to the bottom of the U-shaped frame 201. A rack 202 is fixedly connected to one end of the U-shaped frame 201. A gear 203 is meshed with the tooth end of the rack 202. A rotating shaft 204 is fixedly connected inside the gear 203. One end of the rotating shaft 204 is rotatably connected to the inside of the support frame 1. A handle 205 is fixedly connected to the other end of the rotating shaft 204. A locking screw 207 is threaded inside the handle 205. Limiting holes 206 are uniformly opened inside one of the support frames 1. One end of the locking screw 207 is threaded into the limiting hole 206. A folding assembly is installed between the inner walls of the two support frames 1.

[0026] Specifically, when the backrest 5 needs support, the operator rotates the handle 205, which drives the rotating shaft 204 to rotate. The gear 203 rotates synchronously with it. The tooth end of the gear 203 meshes with the rack 202 to drive the transmission, pushing the U-shaped frame 201 to slide horizontally along the slide rail 2, so that the support leg 208 extends or retracts synchronously with the U-shaped frame 201.

[0027] When switching to sitting mode, the U-shaped frame 201 slides into the support frame 1, and the support legs 208 retract, reducing the floor space occupied by the sofa bed.

[0028] When switching to the reclining mode, the U-shaped frame 201 slides outward from the support frame 1, and the support leg 208 extends out and contacts the ground to form a stable support, preventing the backrest 5 from swaying due to uneven force.

[0029] After the support leg 208 is adjusted to the target position, rotate the locking screw 207 so that one end of the locking screw 207 is screwed into one of the limiting holes 206. The rotating shaft 204 is fixed by the thread constraint force, thereby locking the relative position of the gear 203 and the rack 202, preventing the U-shaped frame 201 from sliding accidentally during use, ensuring the stability of the lying position, and thus improving the stability and comfort of the sofa bed during use.

[0030] Reference Figures 1-5 A sofa seat 3 is fixedly connected to one side of each of the two support frames 1. A sponge pad 301 is installed on the top of the sofa seat 3, and a sponge pad 302 is installed on the top of the sponge pad 301.

[0031] The folding assembly includes a slide groove 4. The inner walls of the two support frames 1 are provided with slide grooves 4. Slide strips 401 are slidably connected in the slide grooves 4 of the support frame 1. An extension seat 402 is fixedly connected to one side of the two slide strips 401. A handle 403 is fixedly connected to one side of the extension seat 402.

[0032] A damping shaft is rotatably connected between the two sides of the two support frames 1, and a backrest 5 is fixedly connected to the outer wall of the damping shaft.

[0033] One of the support frames 1 has symmetrically opened screw holes 8 inside. One end of the screw hole 8 is opened into the interior of the slide groove 4. The screw hole 8 of the support frame 1 is internally threaded with a limiting screw 801. One end of the limiting screw 801 is threaded into the extension seat 402.

[0034] When the backrest 5 and the sofa seat 3 are set horizontally, the bottom side of the backrest 5 is in contact with the top side of the U-shaped frame 201.

[0035] Rollers 7 are evenly installed on the bottom side of the extension seat 402, and the axis of the rollers 7 is set perpendicular to the slide groove 4.

[0036] Specifically, when converting the sofa bed from sitting mode to reclining mode, the operator holds and pulls the extension seat 402 outward, allowing the slide bar 401 to slide smoothly along the slide groove 4. With the cooperation of the roller 7, the sliding friction of the extension seat 402 is reduced, making the pulling operation easier. When the extension seat 402 is pulled out to its maximum stroke, the limiting screw 801 is rotated, so that one end of the limiting screw 801 is screwed into the corresponding hole inside the extension seat 402, fixing the extension seat 402 with threads to prevent it from sliding during use. Then, the backrest 5 is laid flat to be level with the sofa seat 3. At this time, the bottom side of the backrest 5 is in close contact with the top side of the U-shaped frame 201. The U-shaped frame 201 provides even support for the backrest 5. Finally, the second sponge pad 302 on the top of the sofa seat 3 is laid flat on the top of the extension seat 402, forming a complete bed surface with the first sponge pad 301, completing the functional conversion from sofa to bed.

[0037] When resetting the sitting posture mode and switching back to the sitting posture mode, the limit screw 801 is rotated in the opposite direction to release the extension seat 402 from being fixed. The handle 403 is pushed to retract the extension seat 402 into the slide groove 4. Through the damping characteristics of the damping shaft, the tilt angle of the backrest 5 can be adjusted arbitrarily to suit the sitting comfort needs of different users. The angle can be kept stable without additional fixing.

[0038] Reference Figure 5 The extension base 402 is fixedly connected to a partition 6, which is arranged in a cross shape inside the extension base 402.

[0039] Specifically, the interior of the cross-shaped partition 6 extension seat 402 is divided into four independent storage areas, utilizing the unused space of the extension seat 402 to achieve storage function, which not only avoids cluttered storage of items but also improves space utilization.

[0040] Working principle: When the backrest 5 needs support, the operator rotates the handle 205, causing the rotating shaft 204 to rotate. The gear 203 rotates synchronously with it, and the tooth end of the gear 203 meshes with the rack 202 to drive the U-shaped frame 201 to slide horizontally along the slide rail 2. When switching to the sitting position mode, the U-shaped frame 201 slides inward into the support frame 1, and the support leg 208 retracts. When switching to the reclining position mode, the U-shaped frame 201 slides outward from the support frame 1, and the support leg 208 extends. When changing from the sitting position mode to the reclining position mode, the operator holds the handle 403 and pulls the extension seat 402 outward. The slide bar 401 slides smoothly along the slide groove 4, and in conjunction with the roller 7, the extension seat 402 is pulled... When the maximum travel is reached, rotate the limiting screw 801 so that one end of it is screwed into the corresponding hole inside the extension seat 402 to fix the extension seat 402; lay the backrest 5 flat until it is level with the sofa seat 3, with the bottom side of the backrest 5 in contact with the top side of the U-shaped frame 201; lay the second sponge pad 302 on the top of the sofa seat 3 flat on the top of the extension seat 402, forming a complete bed surface with the first sponge pad 301; when the sitting posture mode is reset, rotate the limiting screw 801 in the opposite direction to release the fixation, push the handle 403 to retract the extension seat 402 into the slide groove 4, and adjust the tilt angle of the backrest 5 through the damping shaft; the cross-shaped partitions 6 divide the interior of the extension seat 402 into four independent storage areas.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A folding multifunctional sofa bed, comprising a support frame (1), characterized in that: The support frame (1) is symmetrically arranged, and each support frame (1) is equipped with a slide rail (2). A U-shaped frame (201) is slidably connected inside the two slide rails (2). Support legs (208) are evenly fixedly connected to the bottom of the U-shaped frame (201). A rack (202) is fixedly connected to one end of the U-shaped frame (201). A gear (203) is meshed with the tooth end of the rack (202). A rotating shaft (204) is fixedly connected inside the gear (203). One end of the rotating shaft (204) is rotatably connected to the inside of the support frame (1), and the other end of the rotating shaft (204) is fixedly connected to a handle (205). The handle (205) is threaded with a locking screw (207). Limiting holes (206) are evenly opened inside one of the support frames (1). The outer wall of one end of the locking screw (207) is threaded into the limiting hole (206). A folding assembly is installed between the inner walls of the two support frames (1).

2. The folding multifunctional sofa bed according to claim 1, characterized in that: A sofa seat (3) is fixedly connected to one side of each of the two support frames (1). A sponge pad (301) is installed on the top of the sofa seat (3), and a sponge pad (302) is installed on the top of the sponge pad (301).

3. A folding multifunctional sofa bed according to claim 1, characterized in that: The folding assembly includes a slide groove (4), and the inner walls of the two support frames (1) are provided with slide grooves (4). A slide bar (401) is slidably connected in the slide groove (4) of the support frame (1). An extension seat (402) is fixedly connected to one side of the two slide bars (401), and a handle (403) is fixedly connected to one side of the extension seat (402).

4. A folding multifunctional sofa bed according to claim 1, characterized in that: A damping shaft is rotatably connected between the two sides of the two support frames (1), and a backrest (5) is fixedly connected to the outer wall of the damping shaft.

5. A folding multifunctional sofa bed according to claim 3, characterized in that: The extension seat (402) is fixedly connected to a partition (6), which is arranged in a cross shape inside the extension seat (402).

6. A folding multifunctional sofa bed according to claim 3, characterized in that: Rollers (7) are evenly installed on the bottom side of the extension seat (402), and the axis of the rollers (7) is perpendicular to the slide groove (4).

7. A folding multifunctional sofa bed according to claim 1, characterized in that: One of the support frames (1) has symmetrically opened screw holes (8) inside. One end of the screw hole (8) is opened into the interior of the slide groove (4). The screw hole (8) of the support frame (1) is threadedly connected to a limiting screw (801). One end of the limiting screw (801) is threadedly connected to the extension seat (402).

8. A folding multifunctional sofa bed according to claim 4, characterized in that: When the backrest (5) and the sofa seat (3) are set horizontally, the bottom side of the backrest (5) is in contact with the top side of the U-shaped frame (201).

Images