Sofa backrest mechanism

Abstract

The utility model discloses a sofa backrest mechanism. The mechanism comprises a backrest body, a plurality of sunken transverse reinforcing grooves and a plurality of sunken vertical reinforcing grooves are formed in the middle of the front side face of the backrest body, a downward sunken part sunken forwards is arranged on the rear side face of the bottom of the backrest body, and the two sides of the downward sunken part extend backwards to form a lower mounting plate respectively. And the lower sunken part is also provided with a bent reinforcing groove which is sunken and horizontally extends. According to the sofa backrest mechanism disclosed by the utility model, the movable shaft can be mounted as required for movable adjustment, and 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 sofa backrest mechanism. 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. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a sofa backrest mechanism, which can not only be installed with a movable shaft for movable adjustment according to needs, but also has its structural strength enhanced by reinforcement grooves in various directions.

[0004] According to one aspect of the utility model, a sofa backrest mechanism is provided, comprising a backrest body, a plurality of recessed transverse reinforcement grooves and a plurality of recessed vertical reinforcement grooves are formed in the middle of the front side surface of the backrest body, a lower recessed portion recessed forward is provided on the bottom rear side surface of the backrest body, and a lower mounting plate is extended backward on both sides of the lower recessed portion, and a recessed and horizontally extending curved reinforcement groove is also provided on the lower recessed portion.

[0005] In some embodiments, two through holes are provided in the middle of the backrest body. The benefit is that the through holes can not only save materials but also increase air permeability.

[0006] In some embodiments, a sofa point pulling hole is provided in the middle of the backrest body, which runs through the inner and outer sides thereof, and the sofa point pulling hole is located between the two through holes. The benefit thereof is that the sofa point pulling hole can be used to pull the backrest or even the entire sofa as needed.

[0007] 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.

[0008] In some embodiments, a plurality of horizontally arranged and recessed lower reinforcement grooves are formed on the lower portion of the front side of the backrest body, which is beneficial in that the structural strength of the backrest body can be further enhanced.

[0009] In some embodiments, each lower mounting plate is formed with a front and rear reinforcing groove that runs through the front and rear sides thereof and is recessed, and each of the front and rear reinforcing grooves is respectively connected to each of the lower reinforcing grooves. This is beneficial in that the structural strength of the lower mounting plate can be further enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1This is a front structural diagram of a sofa backrest mechanism according to one embodiment of the utility model;

[0011] Figure 2 for Figure 1 A schematic diagram of the front part structure of a sofa backrest mechanism is shown;

[0012] Figure 3 for Figure 1 A schematic diagram of the rear structure of a sofa backrest mechanism is shown;

[0013] Figure 4 for Figure 3 A schematic structural diagram of the rear portion of a sofa backrest mechanism is shown.

[0014] In the figure: backrest body 1, horizontal reinforcement groove 2, vertical reinforcement groove 3, lower recessed portion 4, lower mounting plate 5, curved reinforcement groove 6, through hole 7, sofa point pulling hole 8, insert mounting hole 9, lower reinforcement groove 10, front and rear reinforcement grooves 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 sofa backrest mechanism comprises a backrest body 1 which is arranged substantially 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] Preferably, the backrest body 1 is made of plastic.

[0018] A plurality of recessed transverse reinforcement grooves 2 and a plurality of recessed vertical reinforcement grooves 3 are formed in the middle of the front side of the backrest body 1 . Both the transverse reinforcement grooves 2 and the vertical reinforcement grooves 3 can be used to enhance the structural strength of the backrest body 1 .

[0019] Preferably, two through holes 7 are provided in the middle of the backrest body 1. The through holes 7 can not only save materials but also increase air permeability.

[0020] In addition, a sofa point pulling hole 8 is provided in the middle of the backrest body 1 and runs through the inner and outer sides thereof, and can be used to pull the backrest body 1 or even the entire sofa as needed.

[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 9 penetrating the left and right sides thereof. The insert mounting holes 9 can be used to install structures such as movable shafts so that the sofa can be movable and adjusted.

[0023] Preferably, a plurality of horizontal and concave lower reinforcement grooves 10 may be formed at the lower portion of the front side surface of the backrest body 1 to further enhance the structural strength of the backrest body 1 .

[0024] In addition, each lower mounting plate 5 is also formed with a recessed front and rear reinforcement groove 11 , which passes through the front and rear side surfaces of the lower mounting plate 5 , and each front and rear reinforcement groove 11 is respectively connected to each lower reinforcement groove 10 .

[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 sofa backrest mechanism, characterized in that: The backrest body (1) comprises a backrest body (1), wherein a plurality of recessed transverse reinforcement grooves (2) and a plurality of recessed vertical reinforcement grooves (3) are formed in the middle of the front side surface of the backrest body (1), a lower recessed portion (4) recessed forward is provided on the bottom rear side surface of the backrest body (1), and a lower mounting plate (5) extends backwards from both sides of the lower recessed portion (4), and a recessed and horizontally extending curved reinforcement groove (6) is also provided on the lower recessed portion (4).

2. A sofa backrest mechanism according to claim 1, characterized in that: Two through holes (7) are provided in the middle of the backrest body (1).

3. A sofa backrest mechanism according to claim 2, characterized in that: A sofa point-pull hole (8) is provided in the middle of the backrest body (1) and runs through the inner and outer sides thereof, and the sofa point-pull hole (8) is located between the two through holes (7).

4. The sofa backrest mechanism according to claim 1, characterized in that: Each of the lower mounting plates (5) has a plurality of insert mounting holes (9) penetrating the left and right sides thereof.

5. The sofa backrest mechanism according to claim 1, characterized in that: The lower part of the front side of the backrest body (1) is also formed with a plurality of horizontally arranged and recessed lower reinforcement grooves (10).

6. A sofa backrest mechanism according to claim 5, characterized in that: Each lower mounting plate (5) is formed with a front and rear reinforcing groove (11) which runs through the front and rear side surfaces thereof and is recessed, and each front and rear reinforcing groove (11) is respectively connected to each lower reinforcing groove (10).

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