Backrest structure and sofa chair

Abstract

The utility model relates to the technical field of seats, in particular to a backrest structure and a sofa chair, the backrest structure comprises a metal backrest frame and a pocket-shaped backrest sleeve with a downward opening, the backrest sleeve is used for wrapping the metal backrest frame, and a middle connecting plate is arranged at the lower end of the metal backrest frame. A fastener can penetrate through the middle connecting plate, so that the opening of the backrest sleeve can be fixed on the metal backrest frame through the fastener. The middle connecting plate is arranged at the lower end of the metal backrest frame, and the fasteners can penetrate through the middle connecting plate, so that the sealing edge at the opening of the backrest sleeve can be fixed through the fasteners (such as screws, gun nails and the like), and the fixed mounting mode of the backrest sleeve on the metal backrest frame becomes simpler and more convenient; and the middle connecting plate is simple in structure and convenient to mount.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, and particularly relates to a backrest structure and a sofa chair. Background Art

[0002] A sofa chair is a kind of furniture with comfortable seating and sofa functions, usually used in living rooms, living quarters, leisure areas and other places. It combines the spaciousness and comfort of a sofa with the support and sitting posture of a chair, providing an ideal space for rest and relaxation. Existing sofa chairs generally include a chassis, a seat cushion and a backrest. The seat cushion and the backrest are respectively fixedly installed on the chassis, and a back soft package is usually installed on the backrest to improve the comfort of the sofa backrest.

[0003] In the prior art, a backrest cover is usually sleeved on the backrest frame of a sofa chair, and the opening thereof is usually connected to the backrest frame of the sofa chair through a connecting member. Specifically, for example, the opening of the backrest cover is directly penetrated and connected to the inside of the frame through fasteners (such as screws, nail guns, etc.) to realize the fixed installation of the backrest cover. However, when the backrest of the sofa chair adopts an iron structure frame, the fasteners can no longer penetrate into the inside of the frame, which makes the opening of the backrest cover no longer able to be connected to the backrest frame by conventional means (using screws, nail guns), and thus the fixed installation method of the backrest cover becomes more complicated. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a backrest structure.

[0005] The utility model is realized by the following technical solutions:

[0006] A backrest structure includes a metal backrest frame and a pocket-shaped backrest cover with an opening facing downward. The backrest cover is used to wrap the metal backrest frame. A middle connecting plate is arranged at the lower end of the metal backrest frame, and the middle connecting plate can be penetrated by fasteners so that the opening of the backrest cover can be fixed on the metal backrest frame through the fasteners.

[0007] As a further improvement of the utility model, a plurality of first connecting members for connecting the seat plate of the sofa chair are arranged on the lower side of the metal backrest frame, and a second connecting member is arranged on the side wall of the first connecting member, and the second connecting member is used to connect the middle connecting plate.

[0008] As a further improvement of the utility model, a plurality of through openings are opened at the opening of the backrest cover for the first connecting members to pass through when the backrest cover wraps the metal backrest frame.

[0009] As a further improvement of the present utility model, the metal backrest frame includes a bottom frame, and a plurality of support frames extending upwardly from the bottom frame, and the first connecting member and the second connecting member are disposed on the bottom frame.

[0010] As a further improvement of the present utility model, the bottom frame is a semi-circular bottom frame or a circular bottom frame.

[0011] As a further improvement of the present utility model, a first sponge layer is disposed on the front surface of the support frame, and a second sponge layer is disposed on the back surface of the support frame.

[0012] As a further improvement of the present utility model, an intermediate cardboard layer is disposed between the second sponge layer and the support frame.

[0013] As a further improvement of the present utility model, a hidden hem is provided at the opening of the backrest cover for hiding the fastener when connecting the intermediate connecting plate through the fastener at the opening of the backrest cover.

[0014] As a further improvement of the present utility model, the intermediate connecting plate is a wooden connecting plate or a plastic connecting plate.

[0015] Based on the same concept, the present utility model further provides a sofa chair, including a base, a seat plate is disposed on the base, including the backrest structure as described above, and the backrest structure is disposed on the seat plate.

[0016] The beneficial effects of the present utility model: In the patent of the present utility model, by providing an intermediate connecting plate at the lower end of the metal backrest frame, and the intermediate connecting plate can be penetrated by the fastener, so that the sealing edge at the opening of the backrest cover can be fixed by means of fasteners (such as screws, nail guns, etc.), thereby making the fixed installation method of the backrest cover on the metal backrest frame more convenient, and the intermediate connecting plate has a simple structure and is easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following will describe in detail the preferred embodiments of the present utility model with reference to the drawings to help understand the purpose and advantages of the present utility model, wherein:

[0018] Figure 1 is a schematic structural view of the sofa chair in the embodiment of the present utility model;

[0019] Figure 2 is a schematic structural view of the metal backrest frame in the embodiment of the present utility model;

[0020] Figure 3 is a schematic structural view of the backrest structure in the embodiment of the present utility model;

[0021] Figure 4 is a schematic structural view of the backrest structure without the backrest cover in the embodiment of the present utility model. Detailed implementation mode

[0022] The following further elaborates on the present utility model based on the accompanying drawings and embodiments.

[0023] In this specification, orientation terms such as upper, lower, left, right, front, rear, front side, back side, top, and bottom, which are mentioned or may be mentioned, are defined with respect to the structures shown in the respective drawings. The terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component. They are relative concepts and may therefore change accordingly depending on their different positions and usage states. Therefore, these or other orientation terms should not be construed as restrictive terms.

[0024] Reference Figures 1 to 4 , what is disclosed in the embodiment of the present utility model is:

[0025] A sofa chair, including a base 10, a seat board 11 is arranged on the base 10, and a backrest structure is further included. The backrest structure is arranged on the seat board 11; in this embodiment, the backrest structure includes a metal backrest frame 1 and a pocket-shaped backrest cover 2 with an opening facing downwards. The pocket-shaped backrest cover 2 is used to wrap the metal backrest frame 1. A middle connecting plate 3 is arranged at the lower end of the metal backrest frame 1. The middle connecting plate 3 allows fasteners to pass through so that the opening of the backrest cover 2 can be fixed to the metal backrest frame 1 through the fasteners; in this embodiment, a number of soft packages are arranged inside the backrest cover 2. At the same time, the middle connecting plate 3 is a wooden connecting plate or a plastic connecting plate, and in this embodiment, it is a wooden connecting plate; specifically during installation, first control the backrest cover 2 to be sleeved onto the above-mentioned metal backrest frame 1 from top to bottom, so that the sealing edge at the lower end opening of the backrest cover 2 is located on both sides of the middle connecting plate 3. At this time, the opening of the backrest cover 2 can be controlled to be fixed using fasteners. In this embodiment, the fasteners are structures such as nail guns and screws. For example, using a nail gun, the sealing edge at the lower end opening of the above-mentioned backrest cover 2 is nailed to the above-mentioned middle connecting plate 3, so that the backrest cover 2 is fixedly connected to the metal backrest frame 1, with a simple structure and convenient connection.

[0026] In this embodiment, a plurality of first connectors 4 for connecting the seat board 11 of the sofa chair are provided on the lower side of the metal backrest frame 1. A second connector 5 is provided on the side wall of the first connector 4, and the second connector 5 is used to connect the intermediate connecting plate 3. Among them, the first connector 4 and the second connector are both provided with connection holes. The seat board 11 can be placed on the first connector 4. At this time, by passing screws through the connection holes and the lower end surface of the seat board 11, the connection between the seat board and the metal backrest frame 1 can be realized. The intermediate connecting plate 3 is arranged on the second connector 5, and by passing screws through the connection holes and the inside of the intermediate connecting plate 3, the connection between the intermediate connecting plate 3 and the metal backrest frame is realized. The structure is simple and the connection is convenient.

[0027] When the backrest cover 2 is sleeved on the metal backrest frame 1, since the first connector 4 is located above the intermediate connecting plate 3 and the edge of the backrest cover 2 needs to be connected to the intermediate connecting plate 3, it is necessary to control the first connector 4 to be able to pass through the backrest cover 2. Therefore, in this embodiment, a plurality of through holes are provided at the opening of the backrest cover 2 for the first connector 4 to pass through when the backrest cover 2 wraps the metal backrest frame 1.

[0028] The metal backrest frame includes a bottom frame 101 and a plurality of support frames 102 extending upwardly on the bottom frame 101. The first connector 4 and the second connector 5 are arranged on the bottom frame 101. The bottom frame 101 is a semi-circular bottom frame 101 or a circular bottom frame 101. A first sponge layer 6 is provided on the front surface of the support frame 102, and a second sponge layer 7 is provided on the back surface of the support frame 102. An intermediate cardboard layer 8 is provided between the second sponge layer 7 and the support frame 102.

[0029] A hidden hem 9 is provided at the opening of the backrest cover 2 for hiding fasteners when connecting the intermediate connecting plate 3 at the opening of the backrest cover 2 by fasteners (such as nail guns, screws, etc.).

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A backrest structure, comprising a metal backrest frame (1) and a pocket-shaped backrest cover (2) with an opening facing downward, the backrest cover (2) being used to wrap the metal backrest frame (1), characterized in that: An intermediate connecting plate (3) is provided at the lower end of the metal backrest frame (1), and a fastener can be inserted into the intermediate connecting plate (3), so that the opening of the backrest cover (2) can be fixed to the metal backrest frame (1) by the fastener.

2. A backrest structure according to claim 1, characterized in that: A plurality of first connecting members (4) for connecting to a sofa chair seat plate are arranged on the lower side of the metal backrest frame (1); second connecting members (5) are arranged on the side walls of the first connecting members (4); and the second connecting members (5) are used to connect to the middle connecting plate (3).

3. A backrest structure according to claim 2, characterized in that: A plurality of through openings are provided at the opening of the backrest cover (2) for allowing the first connecting member (4) to pass through when the backrest cover (2) wraps the metal backrest frame (1).

4. A backrest structure according to claim 2, characterized in that: The metal backrest frame comprises a base frame (101), a plurality of support frames (102) arranged on the base frame (101) and extending upward, and the first connecting member (4) and the second connecting member (5) are arranged on the base frame (101).

5. A backrest structure according to claim 4, characterized in that: The base frame (101) is a semi-circular ring-shaped base frame or a circular ring-shaped base frame.

6. A backrest structure according to claim 5, characterized in that: A first sponge layer (6) is arranged on the front side of the support frame (102), and a second sponge layer (7) is arranged on the back side of the support frame (102).

7. A backrest structure according to claim 6, characterized in that: An intermediate paperboard layer (8) is provided between the second sponge layer (7) and the support frame (102).

8. The backrest structure according to claim 1, characterized in that: A hidden folded edge (9) is provided at the opening of the backrest cover (2) so as to hide the fasteners when the middle connecting plate (3) is connected to the opening of the backrest cover (2) via fasteners.

9. The backrest structure according to claim 1, characterized in that: The middle connecting plate (3) is a wooden connecting plate or a plastic connecting plate.

10. A sofa chair, comprising a base (10), wherein a seat plate (11) is arranged on the base, characterized in that: It comprises a backrest structure according to any one of claims 1 to 9, wherein the backrest structure is arranged on the seat plate (11).

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