Sofa backrest adjusting frame body

Abstract

The utility model discloses a sofa backrest adjusting frame body which comprises a pair of fixing pieces which are symmetrically arranged, a first swing arm and a second swing arm which are symmetrically arranged are movably installed on the fixing pieces, and the other end of the first swing arm and the other end of the second swing arm are jointly and movably connected with a backrest installation piece. The backrest mounting part is connected with one end of the first swing arm and one end of the second swing arm which are movably mounted on the fixing part, and the backrest mounting part can move within a certain range in the horizontal direction through common swing of the first swing arm and the second swing arm, so that when a sofa backrest is mounted on the backrest mounting part, the backrest mounting part can move within the certain range in the horizontal direction; the sofa backrest can be moved and adjusted in the horizontal direction, so that the sofa can be suitable for various scenes, various requirements of users on the sofa are met, and the problem that the position of the sofa backrest in the prior art cannot be adjusted according to the requirements of the users is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural equipment, in particular to an adjusting frame for a sofa backrest. Background Art

[0002] There are various types of sofas on the current market, with different design forms, including both single independent sofas and flexible modular sofas. However, the seat cushions and backrests of most sofas are fixedly connected. In some sofa designs, the seat cushions are short, prompting people to keep their backs close to the backrest and maintain an upright posture, which is suitable for activities such as watching TV or chatting. In other sofa designs, the seat cushions are long, requiring users to lean back and contact the backrest in a semi-reclined position, which is more conducive to rest and relaxation. If a user tries to keep their waist and back upright on such a sofa, due to the lack of sufficient support, they are prone to fatigue after long-term use.

[0003] Therefore, due to the fixed connection method between the seat cushion and the backrest, the backrests of sofas in the prior art cannot be adjusted in position according to user needs, and these sofas can often only meet specific usage requirements and cannot flexibly adapt to the diverse needs of users in different situations. Summary of the Invention

[0004] The utility model provides an adjusting frame for a sofa backrest to solve the above-mentioned existing technical problems.

[0005] The technical solution of the utility model is realized as follows:

[0006] An adjusting frame for a sofa backrest includes a pair of symmetrically arranged fixing members, on which symmetrically arranged first swing arms and second swing arms are movably installed, and the other ends of the first swing arms and the second swing arms are jointly movably connected to a backrest mounting member.

[0007] Further, the symmetrically arranged first swing arms and the symmetrically arranged second swing arms are both connected by connecting rods.

[0008] Further, both ends of the connecting rod are provided with connecting pieces, and at least two reserved openings for bolting to the first swing arm and the second swing arm are provided on the connecting pieces.

[0009] Further, the fixing member is a bent sheet metal part, and a number of mounting holes are reserved on its horizontal surface.

[0010] Further, a limiting member is installed on the vertical surface of the fixing member near the first swing arm, and a limiting member is installed on one surface of the backrest mounting member.

[0011] Further, both ends of the first swing arm are bolted to the fixing member and the backrest mounting member respectively, and both ends of the second swing arm are bolted to the fixing member and the backrest mounting member respectively.

[0012] The utility model has the following beneficial effects compared with the prior art:

[0013] By arranging a first swing arm and a second swing arm, the backrest mounting member is connected to one ends of the first swing arm and the second swing arm which are movably mounted on the fixing member. Through the common swing of the first swing arm and the second swing arm, the backrest mounting member can move within a certain range in the horizontal direction. Therefore, when a sofa backrest is mounted on the backrest mounting member, the sofa backrest can be adjusted to move in the horizontal direction, so that various scenarios can be adapted, and various demands of users for the sofa can be met. It solves the problem that the sofa backrest in the prior art cannot be adjusted in position according to the needs of users. These sofas often can only meet specific usage requirements and cannot flexibly adapt to the diverse demands of users in different situations, making the sofa backrest more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of an adjustment frame body for a sofa backrest of the utility model;

[0015] Figure 2 is a reference diagram of the usage state of an adjustment frame body for a sofa backrest of the utility model.

[0016] 1. Fixing member; 2. First swing arm; 3. Second swing arm; 4. Backrest mounting member; 5. Connecting rod; 6. Connecting piece; 7. Mounting hole; 8. Limiting member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] As Figure 1-2 shown, an adjustment frame body for a sofa backrest includes a pair of symmetrically arranged fixing members 1. Symmetrically arranged first swing arm 2 and second swing arm 3 are movably mounted on the fixing member 1, and the other ends of the first swing arm 2 and the second swing arm 3 are commonly and movably connected to a backrest mounting member 4.

[0019] In this embodiment, a movable component is formed by the first swing arm 2 and the second swing arm 3 movably mounted on the fixing member 1, and a backrest mounting member 4 for mounting the sofa backrest is mounted on the first swing arm 2 and the second swing arm 3, so that the backrest mounting member 4 can move horizontally with the movement of the first swing arm 2 and the second swing arm 3, thereby realizing the function that the sofa backrest can be adjusted and moved horizontally, further making the sofa backrest more flexible to adapt to more scenarios and meet more needs of users.

[0020] Further, the symmetrically arranged first swing arms 2 and the symmetrically arranged second swing arms 3 are all connected by a connecting rod 5.

[0021] By arranging the connecting rod 5, it is ensured that the symmetrically arranged first swing arms 2 can move synchronously, and at the same time, it is also ensured that the symmetrically arranged second swing arms 3 can move synchronously, preventing deformation and damage caused by asynchronous movement.

[0022] Further, both ends of the connecting rod 5 are provided with connecting pieces 6, and at least 2 reserved openings for bolting to the first swing arm 2 and the second swing arm 3 are provided on the connecting pieces 6. By providing at least 2 reserved openings on the connecting piece 6 for bolting to the first swing arm 2 or the second swing arm 3, there are at least two bolt connection points between the connecting rod 5 and the first swing arm 2 or the second swing arm 3, making the installation of the connecting rod 5 more firm.

[0023] Further, the fixing member 1 is a bent sheet metal part, and a plurality of mounting holes 7 are reserved on its horizontal surface.

[0024] Further, a limiting member 8 is installed at the vertical surface of the fixing member 1 near the first swing arm 2, and a limiting member 8 is installed on one surface of the backrest mounting member 4. By arranging the limiting member 8, when the first swing arm 2 or the second swing arm 3 moves to a certain angle, it will contact and conflict with the limiting member 8, so as to prevent the first swing arm 2 or the second swing arm 3 from having too large a movement range, resulting in the inability to fix the sofa backrest mounted on the backrest mounting member 4 after adjusting the distance.

[0025] Further, both ends of the first swing arm 2 are bolted to the fixing member 1 and the backrest mounting member 4 respectively, and both ends of the second swing arm 3 are bolted to the fixing member 1 and the backrest mounting member 4 respectively.

[0026] The working process and principle of the present utility model are as follows:

[0027] In the present utility model, the first swing arm 2 and the second swing arm 3 are both movably arranged on the fixed member 1 in a fixed state, and the other ends of the first swing arm 2 and the second swing arm 3 are commonly connected to the backrest mounting member 4. The backrest mounting member 4 can move accordingly under the support of the first swing arm 2 and the second swing arm 3. At the same time, during the movement process, the backrest mounting member 4 can move in the horizontal direction. When a sofa backrest is mounted on the backrest mounting member 4, the sofa backrest can adjust its position on the horizontal seat cushion, so as to achieve the purpose of adjusting the backrest position, making the sofa applicable to more scenarios and meeting more needs of users.

[0028] The specific embodiments of the utility model have been described in detail above, but they are only examples. The present utility model is not limited to the specific embodiments described above. Those skilled in the art should understand that the above embodiments and the descriptions in the specification only illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A sofa backrest adjustment frame, characterized in that: The invention comprises a pair of symmetrically arranged fixing members (1), on which a symmetrically arranged first swing arm (2) and a second swing arm (3) are movably mounted, and the other ends of the first swing arm (2) and the second swing arm (3) are movably connected to a backrest mounting member (4).

2. The sofa backrest adjustment frame according to claim 1, characterized in that: The symmetrically arranged first swing arm (2) and the symmetrically arranged second swing arm (3) are both connected via a connecting rod (5).

3. The sofa backrest adjustment frame according to claim 2, characterized in that: Both ends of the connecting rod (5) are provided with connecting plates (6), and the connecting plate (6) is provided with at least two reserved openings for bolting with the first swing arm (2) and the second swing arm (3).

4. The sofa backrest adjustment frame according to claim 1, characterized in that: The fixing part (1) is a bent sheet metal component, and a plurality of mounting holes (7) are reserved on a horizontal side thereof.

5. The sofa backrest adjustment frame according to claim 4, characterized in that: A limiting member (8) is installed on the vertical surface of the fixing member (1) close to the first swing arm (2), and a limiting member (8) is installed on one side of the backrest mounting member (4).

6. The sofa backrest adjustment frame according to claim 1, characterized in that: The two ends of the first swing arm (2) are respectively bolted to the fixing member (1) and the backrest mounting member (4), and the two ends of the second swing arm (3) are respectively bolted to the fixing member (1) and the backrest mounting member (4).

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