Novel sofa plastic backrest

Abstract

The utility model discloses a novel plastic backrest of a sofa. The backrest comprises a backrest body, the front side face of the top of the backrest body is provided with an upper sunken part which is sunken backwards, and the two sides of the upper sunken part both extend forwards to form an upper mounting plate; the rear side face of the bottom of the backrest body is provided with a downward sunken part which is sunken forwards, the two sides of the downward sunken part extend backwards to form a lower mounting plate respectively, and the downward sunken part is further provided with a bent reinforcing groove which is sunken and extends horizontally. According to the novel sofa plastic backrest disclosed by the utility model, not only can the headrest or the movable shaft be movably adjusted as required, but also the structural strength is enhanced through the reinforcing grooves in all directions.

Description

Technical Field

[0001] The utility model relates to the field of daily necessities, in particular to a new type of plastic sofa backrest. Background Art

[0002] Conventional sofa backrests are usually made of a single piece, which is not only structurally fragile, but also unable to be adjusted to match the sofa, or to be installed with other structures such as headrests as needed. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a novel plastic sofa backrest, which can not only be installed with a headrest or a movable shaft for movable adjustment as needed, but also has structural strength enhanced by reinforcement grooves in all directions.

[0004] According to one aspect of the utility model, a new type of plastic sofa backrest is provided, including a backrest body, wherein the top front side surface of the backrest body has an upper recessed portion recessed toward the rear, and both sides of the upper recessed portion extend forwardly with an upper mounting plate; the bottom rear side surface of the backrest body has a lower recessed portion recessed toward the front, and both sides of the lower recessed portion extend backwardly with a lower mounting plate, and the lower recessed portion also has a recessed and horizontally extending curved reinforcement groove.

[0005] In some embodiments, each of the upper mounting plates has a plurality of headrest hinge mounting holes extending through the left and right sides thereof. The benefit of this is that the headrest hinge mounting holes can be used to mount structures such as headrests.

[0006] In some embodiments, each of the lower mounting plates has a plurality of insert mounting holes extending through the left and right sides thereof. The advantage is that the insert mounting holes can be used to install structures such as movable shafts, so that the sofa can be adjusted.

[0007] In some embodiments, the left and right side surfaces of the lower mounting plate are provided with a plurality of horizontally arranged and recessed transverse reinforcement grooves, which is beneficial in that the structural strength of the lower mounting plate can be enhanced.

[0008] In some embodiments, each of the upper mounting plates and each of the lower mounting plates is formed with a front and rear reinforcing groove that runs through the front and rear sides thereof and is recessed. This is beneficial in that the structural strength of the upper mounting plates and the lower mounting plates can be enhanced.

[0009] In some embodiments, a plurality of through holes are provided in the middle of the backrest body, which is beneficial in that the through holes can not only save materials but also increase air permeability. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1This is a schematic diagram of the front structure of a new type of sofa plastic backrest in one embodiment of the utility model;

[0011] Figure 2 for Figure 1 The front part structure diagram of a novel sofa plastic backrest is shown;

[0012] Figure 3 for Figure 1 The schematic diagram of the rear structure of a new type of sofa plastic backrest is shown;

[0013] Figure 4 for Figure 3 The figure shows a schematic diagram of the rear structure of a novel plastic sofa backrest.

[0014] In the figure: backrest body 1, upper recessed portion 2, upper mounting plate 3, lower recessed portion 4, lower mounting plate 5, curved reinforcement groove 6, headrest hinge mounting hole 7, insert mounting hole 8, transverse reinforcement groove 9, front and rear reinforcement grooves 10, through hole 11. DETAILED DESCRIPTION

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0016] like Figure 1-4 As shown, the new sofa plastic backrest comprises a backrest body 1 which is arranged roughly vertically, wherein the side of the backrest body 1 facing the sofa during installation is the front side, the other side is the rear side, and the other two sides are the left and right sides.

[0017] On the front side of the backrest body 1 , there is an upper recessed portion 2 recessed toward the rear at its top, and an upper mounting plate 3 extends forward from both sides of the upper recessed portion 2 .

[0018] Each upper mounting plate 3 is provided with a plurality of headrest hinge mounting holes 7 penetrating the left and right sides thereof. The headrest hinge mounting holes 7 can be used to mount structures such as a headrest.

[0019] Preferably, each upper mounting plate 3 is formed with a recessed front and rear reinforcement groove 10 , and the front and rear reinforcement groove 10 passes through the front and rear side surfaces of the upper mounting plate 3 where it is located.

[0020] In addition, a plurality of through holes 11 are provided in the middle of the backrest body 1 , which can not only save materials but also increase air permeability.

[0021] On the rear side of the backrest body 1, there is a lower concave portion 4 on the bottom rear side thereof, which is concave forward, and a lower mounting plate 5 is extended backward on both sides of the lower concave portion 4. The lower concave portion 4 also has a concave and horizontally extending curved reinforcement groove 6, which can be used to enhance the structural strength of the part.

[0022] Each lower mounting plate 5 has a plurality of insert mounting holes 8 penetrating the left and right sides thereof. The insert mounting holes 8 can be used to install structures such as movable shafts so that the sofa can be movable and adjusted.

[0023] Preferably, each lower mounting plate 5 is also formed with a recessed front and rear reinforcement groove 10 , which passes through the front and rear side surfaces of the lower mounting plate 5 where it is located.

[0024] In addition, a plurality of horizontal and concave transverse reinforcement grooves 9 may be provided on both the left and right side surfaces of the lower mounting plate 5 to further enhance the structural strength of the lower mounting plate 5 .

[0025] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A new type of sofa plastic backrest, characterized by: The backrest body (1) comprises a backrest body (1), wherein the top front side surface of the backrest body (1) comprises an upper recessed portion (2) recessed toward the rear, and both sides of the upper recessed portion (2) extend forwardly with an upper mounting plate (3); the bottom rear side surface of the backrest body (1) comprises a lower recessed portion (4) recessed toward the front, and both sides of the lower recessed portion (4) extend backwardly with a lower mounting plate (5), and the lower recessed portion (4) also comprises a recessed and horizontally extending curved reinforcement groove (6).

2. A new type of sofa plastic backrest according to claim 1, characterized in that: Each of the upper mounting plates (3) is provided with a plurality of headrest hinge mounting holes (7) penetrating the left and right sides thereof.

3. The new sofa plastic backrest according to claim 1, characterized in that: Each lower mounting plate (5) has a plurality of insert mounting holes (8) penetrating the left and right sides thereof.

4. The novel plastic sofa backrest according to claim 1, characterized in that: The left and right side surfaces of the lower mounting plate (5) are both provided with a plurality of horizontally arranged and recessed transverse reinforcement grooves (9).

5. The novel plastic sofa backrest according to claim 1 is characterized in that: Each of the upper mounting plates (3) and each of the lower mounting plates (5) is formed with a front and rear reinforcing groove (10) which runs through the front and rear side surfaces thereof and is recessed.

6. The novel plastic sofa backrest according to claim 1, characterized in that: A plurality of through holes (11) are provided in the middle of the backrest body (1).

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