Easy-to-operate sofa bed

Abstract

The utility model belongs to the technical field of sofa bed, specifically related to the sofa bed of easy operation. In view of the insufficient that the first swing frame of the existing sofa bed will produce friction with the component supporting it, the utility model uses the following technical scheme: the sofa bed of easy operation includes: fixed assembly, including sofa frame, the sofa frame includes the side support frame of left and right length direction both ends, the two support plates of front and back direction being located at the rear part of left and right ends of side support frame, and the support plate is located above the side support frame, the pulling assembly includes the bottom frame, the first swing frame and the second swing frame, and the front end of first swing frame is rotatably connected with bottom frame, and the rear end of second swing frame is rotatably connected with bottom frame, when the support plate is located between the first swing frame and the second swing frame of storage, the pulling assembly still includes two upper rolling elements being located at the rear part of left and right ends of first swing frame, and the upper rolling element is located above the support plate. The sofa bed of the utility model replaces the friction between the existing surface and surface by the friction of upper rolling element and support plate.

Description

Technical Field

[0001] This utility model belongs to the field of sofa bed technology, specifically relating to an easy-to-operate sofa bed. Background Technology

[0002] A sofa bed combines the functions of a sofa and a bed, allowing it to be converted into a bed when needed. One existing type of pull-out sofa bed includes a fixed assembly and a pull-out assembly. The function is achieved by pulling out the pull-out assembly and performing other flipping operations. The pull-out assembly includes a base frame, a first swing arm, and a second swing arm. The front end of the first swing arm is rotatably connected to the base frame, and the rear end of the second swing arm is also rotatably connected to the base frame. When folded, the support portion of the first swing arm is located above the second swing arm; when unfolded, the support portions of the first and second swing arms are essentially flush.

[0003] For this type of sofa bed with a second swing frame that swings backward, the first swing frame needs to be supported by a fixed assembly when folding it up. During the process of pulling the assembly in and out, the components supporting the second swing frame will generate significant friction with the first swing frame (this friction is sliding friction). Summary of the Invention

[0004] This invention addresses the shortcomings of existing sofa beds with a second swing frame that swings backward, where the first swing frame rubs against the supporting components. It provides a sofa bed that is easy to operate by adding a rolling element to the swing frame, changing sliding friction to rolling friction and reducing friction.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an easy-to-operate sofa bed, comprising:

[0006] The fixed assembly includes a sofa frame, which includes side support frames at both ends in the left and right length direction and two support plates in the front and back direction located at the rear of the left and right ends of the side support frames, with the support plates located above the side support frames.

[0007] The pull-out assembly includes a base frame, a first swing frame and a second swing frame. The front end of the first swing frame is rotatably connected to the base frame, and the rear end of the second swing frame is rotatably connected to the base frame. When folded, the support part of the first swing frame is located above the second swing frame. When unfolded, the support parts of the first swing frame and the support parts of the second swing frame are flush.

[0008] When stored, the support plate in the height direction is located between the first swing frame and the second swing frame. The pull-out assembly also includes two upper rolling members located at the rear of the left and right ends of the first swing frame, with the upper rolling members located above the support plate.

[0009] This utility model relates to an easy-to-operate sofa bed. The fixed assembly includes a support plate located above the side support frame, and the pull-out assembly includes two upper rolling elements located at the rear of the left and right ends of the first swing frame. The upper rolling elements are located above the support plate. When the pull-out assembly is pulled out, the friction between the upper rolling elements and the support plate replaces the existing surface-to-surface friction, thus reducing friction. The rolling elements can be rollers, bearings, or a combination of both.

[0010] As an improvement, the side support plate is generally convex in shape. The side support plate includes a support base and a connecting part. The front and rear dimensions of the support base are larger than those of the connecting part. The front and rear sections of the support base are bent downward to form a guide part.

[0011] As an improvement, the support plate is located above the side support frame; the connecting part of the support plate is welded to the side support frame.

[0012] As an improvement, the front-to-back dimensions of the support plate are smaller than those of the second swing frame.

[0013] As an improvement, the second swing frame is supported by a support plate when it is deployed.

[0014] As an improvement, a support member is provided at the rear end of the second swing frame, which supports the first swing frame when it is deployed.

[0015] As an improvement, there are two support members. The support members are L-shaped and include a horizontal part and a vertical part welded to the second swing frame. When stored, the support members are located behind the second swing frame.

[0016] As an improvement, the second swing frame is higher in the front and lower in the back when stored; a shim is provided at the front end of the second swing frame; the second swing frame is located inside the side support frame.

[0017] As an improvement, the first swing frame is L-shaped, and the lower end of the first swing frame is rotatably connected to the base frame; the second swing frame is straight, the base frame is L-shaped, and the rear end of the second swing frame is rotatably connected to the upper end of the base frame.

[0018] As an improvement, the pull-out assembly also includes a bottom rolling element assembly located at the bottom of the base frame.

[0019] The beneficial effects of this easy-to-operate sofa bed are as follows: the fixed assembly includes a support plate located above the side support frame, and the pull-out assembly includes two upper rolling members located at the rear of the left and right ends of the first swing frame. The upper rolling members are located above the support plate. When the pull-out assembly is pulled, the friction between the upper rolling members and the support plate replaces the existing surface-to-surface friction, thereby reducing the friction force. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the easy-to-operate sofa bed according to Embodiment 1 of this utility model (sofa folded up).

[0021] Figure 2 This is a structural schematic diagram of the easy-to-operate sofa bed according to Embodiment 1 of this utility model (in unfolded bed state).

[0022] Figure 3 This is a schematic diagram of the frame structure of the easy-to-operate sofa bed according to Embodiment 1 of this utility model (sofa folded up).

[0023] Figure 4 This is a schematic diagram of the frame structure of the easy-to-operate sofa bed according to Embodiment 1 of this utility model (in unfolded bed state).

[0024] Figure 5 This is a schematic diagram of the sofa frame of the easy-to-operate sofa bed according to Embodiment 1 of this utility model.

[0025] Figure 6 This is a schematic diagram of the structure of the first and second swing frames of the easy-to-operate sofa bed according to Embodiment 1 of this utility model (sofa folded up).

[0026] Figure 7 This is a schematic diagram of the support plate of the easy-to-operate sofa bed according to Embodiment 1 of this utility model.

[0027] In the diagram, 01 is the fixed assembly; 02 is the pull-out assembly.

[0028] 1. Side support frame;

[0029] 2. Support plate; 21. Connecting part; 22. Support base; 23. Guide part;

[0030] 3. Base frame;

[0031] 4. First swing frame;

[0032] 5. Second swing frame;

[0033] 6. Upper rolling element;

[0034] 7. Support components. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be explained and described below. However, the following embodiments are only preferred embodiments of the present invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present invention.

[0036] See Figures 1 to 5 The easy-to-operate sofa bed according to this utility model embodiment includes:

[0037] The fixed assembly includes a sofa frame, which includes side support frames at both ends in the left and right length direction and two support plates in the front and back direction located at the rear of the left and right ends of the side support frames, with the support plates located above the side support frames.

[0038] The pull-out assembly includes a base frame, a first swing frame and a second swing frame. The front end of the first swing frame is rotatably connected to the base frame, and the rear end of the second swing frame is rotatably connected to the base frame. When folded, the support part of the first swing frame is located above the second swing frame. When unfolded, the support parts of the first swing frame and the support parts of the second swing frame are flush.

[0039] When stored, the support plate in the height direction is located between the first swing frame and the second swing frame. The pull-out assembly also includes two upper rolling members located at the rear of the left and right ends of the first swing frame, with the upper rolling members located above the support plate.

[0040] The present invention provides an easy-to-operate sofa bed. The fixed assembly includes a support plate located above the side support frame, and the pull-out assembly includes two upper rolling members located at the rear of the left and right ends of the first swing frame. The upper rolling members are located above the support plate. When the pull-out assembly is pulled, the friction between the upper rolling members and the support plate replaces the existing surface-to-surface friction, thereby reducing the friction force.

[0041] Example 1

[0042] See Figures 1 to 5 The first embodiment of this utility model is an easy-to-operate sofa bed, which includes:

[0043] The fixed assembly 01 includes a sofa frame, which includes side support frames 1 at both ends in the left and right length direction and two support plates 2 located at the rear of the left and right ends of the side support frames 1 in the front and back direction, with the support plates 2 located above the side support frames 1.

[0044] The pull-out assembly 02 includes a base frame 3, a first swing frame 4 and a second swing frame 5. The front end of the first swing frame 4 is rotatably connected to the base frame 3, and the rear end of the second swing frame 5 is rotatably connected to the base frame 3. When stored, the support part of the first swing frame 4 is located above the second swing frame 5. When unfolded, the support parts of the first swing frame 4 and the second swing frame 5 are flush.

[0045] In this configuration, when folded up, the support plate 2 is positioned between the first swing frame 4 and the second swing frame 5 in the height direction. The pull-out assembly 02 also includes two upper rolling members located at the rear of the left and right ends of the first swing frame 4, with the upper rolling members positioned above the support plate 2. The support portion of the first swing frame 4 is a ring of brackets on its upper part. The support portion of the second swing frame 5 is also a ring of brackets on its upper part (this bracket flips up and down when folded up).

[0046] In this embodiment, the sofa frame has four parts: bottom, left and right side faces, and rear face, with the front and top sides open.

[0047] In this embodiment, the side support plate 2 is generally convex in shape. The side support plate 2 includes a support base 22 and a connecting part 21. The front and rear dimensions of the support base 22 are larger than those of the connecting part 21. The front and rear sections of the support base 22 are bent downward to form a guide part 23.

[0048] In this embodiment, the support plate 2 is disposed above the side support frame 1; the connecting part 21 of the support plate 2 is welded to the side support frame 1.

[0049] In this embodiment, the front-to-back dimensions of the support plate 2 are smaller than the front-to-back dimensions of the second swing frame 5.

[0050] In this embodiment, the second swing frame 5 is supported by the support plate 2 when it is unfolded.

[0051] In this embodiment, the second swing frame 5 is provided with a support member 7 at its rear end, and the first swing frame 4 is supported by the support member 7 when it is unfolded.

[0052] In this embodiment, there are two support members 7. The support member 7 is L-shaped and includes a horizontal part and a vertical part welded to the second swing frame 5. When stored, the support member 7 is located behind the second swing frame 5.

[0053] In this embodiment, the second swing frame 5 is higher in the front and lower in the back when stored; the front end of the second swing frame 5 is provided with a shim; the second swing frame 5 is located inside the side support frame 1.

[0054] In this embodiment, the first swing frame 4 is L-shaped, and the lower end of the first swing frame 4 is rotatably connected to the base frame 3; the second swing frame 5 is straight, the base frame 3 is L-shaped, and the rear end of the second swing frame 5 is rotatably connected to the upper end of the base frame 3.

[0055] In this embodiment, the pull-out assembly 02 further includes a bottom rolling element assembly disposed at the bottom of the base frame 3. The bottom rolling element assembly includes two front rolling elements and two rear rolling elements, and the four rolling elements are distributed in an isosceles trapezoidal shape.

[0056] The beneficial effects of the easy-to-operate sofa bed in Embodiment 1 of this utility model are as follows: the fixed assembly 01 includes a support plate 2 located above the side support frame 1, and the pull-out assembly 02 includes two upper rolling members located at the rear of the left and right ends of the first swing frame 4. The upper rolling members are located above the support plate 2. When the pull-out assembly 02 is pulled, the friction between the upper rolling members and the support plate 2 replaces the existing surface-to-surface friction, thereby reducing the friction force; the front and rear ends of the support plate 2 form guide portions 23.

[0057] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes, but is not limited to, the content described in the above specific embodiments. Any modifications that do not depart from the functional and structural principles of the present invention will be included within the scope of the claims.

Claims

1. An easy-to-operate sofa bed, characterized by: Easy-to-use sofa beds include: The fixed assembly (01) includes a sofa frame, which includes side support frames (1) at both ends in the left and right length direction and two support plates (2) in the front and back direction located at the rear of the left and right ends of the side support frames (1). The support plates (2) are located above the side support frames (1). The pull-out assembly (02) includes a base frame (3), a first swing frame (4) and a second swing frame (5). The front end of the first swing frame (4) is rotatably connected to the base frame (3), and the rear end of the second swing frame (5) is rotatably connected to the base frame (3). When stored, the support part of the first swing frame (4) is located above the second swing frame (5). When unfolded, the support parts of the first swing frame (4) and the support parts of the second swing frame (5) are flush. When stored, the support plate (2) in the height direction is located between the first swing frame (4) and the second swing frame (5). The pull-out assembly (02) also includes two upper rolling members (6) located at the rear of the left and right ends of the first swing frame (4). The upper rolling members (6) are located above the support plate (2).

2. The easy-to-operate sofa bed according to claim 1, characterized in that: The side support plate (2) is generally convex in shape. The side support plate (2) includes a support base (22) and a connecting part (21). The front and rear dimensions of the support base (22) are larger than those of the connecting part (21). The front and rear sections of the support base (22) are bent downward to form a guide part (23).

3. The easy-to-operate sofa bed according to claim 2, characterized in that: The support plate (2) is located above the side support frame (1); the connecting part (21) of the support plate (2) is welded to the side support frame (1).

4. The easy-to-operate sofa bed according to claim 2, characterized in that: The front-to-back dimensions of the support plate (2) are smaller than those of the second swing frame (5).

5. The easy-to-operate sofa bed according to claim 1, characterized in that: The second swing frame (5) is supported by the support plate (2) when it is unfolded.

6. The easy-to-operate sofa bed according to claim 1, characterized in that: The second swing frame (5) has a support member (7) at its rear end, and the first swing frame (4) is supported by the support member (7) when it is unfolded.

7. The easy-to-operate sofa bed according to claim 6, characterized in that: There are two support members (7). The support member (7) is L-shaped and includes a horizontal part and a vertical part welded to the second swing frame (5). When stored, the support member (7) is located behind the second swing frame (5).

8. The easy-to-operate sofa bed according to claim 1, characterized in that: When stored, the second swing frame (5) is higher in the front and lower in the back; the front end of the second swing frame (5) is equipped with a shim; the second swing frame (5) is located inside the side support frame (1).

9. The easy-to-operate sofa bed according to claim 1, characterized in that: The first swing frame (4) is L-shaped, and the lower end of the first swing frame (4) is rotatably connected to the base frame (3); the second swing frame (5) is straight, the base frame (3) is L-shaped, and the rear end of the second swing frame (5) is rotatably connected to the upper end of the base frame (3).

10. The easy-to-operate sofa bed according to claim 1, characterized in that: The pull-out assembly (02) also includes a bottom rolling element assembly located at the bottom of the base frame (3).

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