CN219762908U - Sofa chair with hidden backrest - Google Patents

Abstract

The utility model discloses a hidden backrest couch, which relates to the technical field of couch, and comprises a sofa backrest, wherein a sofa base frame is arranged on one side of the sofa backrest, the sofa backrest is in sliding connection with the sofa base frame, a sofa seat is also in sliding connection with the sofa base frame, an adjusting connecting rod I is rotatably connected to the side wall of the sofa base frame, and a rotating roller in contact with the sofa seat is connected to one end of the adjusting connecting rod I. According to the utility model, through the mutual matching among the sofa backrest, the sofa base frame, the sofa seat, the first adjusting connecting rod, the rotary roller and the second adjusting connecting rod, the sofa backrest automatically rises under the drive of the first adjusting connecting rod, the rotary roller and the adjusting connecting rod after being seated on the sofa seat, and then can automatically descend and reset under the action of gravity after a human body stands up, so that the sofa backrest does not need to be adjusted intentionally, and has the advantages of simple integral structure, difficult damage, flexible design and convenience for a user to use.

Description

Hidden backrest sofa chair

Technical field

The utility model relates to the technical field of sofa chairs, in particular to a hidden backrest sofa chair.

Background technique

The sofa is a kind of soft furniture. It is a multi-seat chair with soft cushions and armrests on both sides. The sofa chair can be said to be a deformed form of the sofa. Most of the modern sofa chairs are single seats with backrests. Chairs, existing sofa chairs can be divided into leather sofa chairs, fabric sofa chairs, metal sofa chairs, rattan sofa chairs and solid wood sofa chairs according to the materials they are made of. There are many types, and they are increasingly favored by young people.

When the traditional sofa chair backrests with hidden functions are unfolded or stored, they need to be adjusted deliberately. Some are manually adjusted, and some are electrically adjusted. The manual adjustment process is more complicated, and some new users find it difficult to adjust. Difficulty, electric adjustment method, once the power device is damaged, it will lead to a situation that cannot be adjusted, and the cost of use will increase.

Utility model content

The purpose of this utility model is to solve the problems in the prior art that the backrest of a sofa chair with a hidden function requires manual adjustment when unfolding or storing, making manual adjustment difficult and electric adjustment easy to damage. The utility model proposes a hidden backrest sofa chair.

In order to achieve the above purpose, the present utility model adopts the following technical solution: a hidden backrest sofa chair, including a sofa backrest. A sofa base frame is provided on one side of the sofa backrest. The sofa backrest is slidingly connected to the sofa base frame. The sofa The base frame is also slidably connected to a sofa seat. The side wall of the sofa base frame is rotatably connected to an adjusting link. One end of the adjusting link is connected to a rotating roller that is in contact with the sofa seat. The adjusting link The other end is rotatably connected to an adjusting link two, and one end of the adjusting link two is away from the adjusting link and is rotatably connected to the bottom end of the sofa backrest.

As a further description of the above technical solution:

One side of the sofa base frame is provided with a plurality of sliding installation posts, and the bottom of the sofa backrest is provided with a plurality of sliding installation sleeves. The plurality of sliding installation sleeves are connected to the sliding installation columns one by one. The outer surface.

As a further description of the above technical solution:

The second adjusting link is rotatably connected to the bottom side wall of the sliding mounting sleeve.

As a further description of the above technical solution:

One side of the sofa base frame is provided with a plurality of sliding mounting posts 2, and the bottom of the sofa seat is provided with a plurality of sliding mounting sleeves 2, and the plurality of sliding mounting sleeves 2 are connected to the sliding mounting columns in one-to-one corresponding sliding sleeves. 2. External surface.

As a further description of the above technical solution:

The bottom of the sofa seat is provided with a planar protrusion, and the rotating roller is constrained to be tangential to the lower surface of the planar protrusion.

The utility model has the following beneficial effects:

Compared with the existing technology, this hidden backrest sofa chair can sit on the sofa seat through the mutual cooperation between the sofa backrest, the sofa base frame, the sofa seat, the first adjusting link, the rotating roller and the second adjusting link. Finally, driven by the adjusting link 1, the rotating roller and the adjusting link, the sofa backrest rises on its own, and then after the human body stands up, the sofa backrest can automatically lower and reset under the action of gravity, without the need for manual adjustment, and the overall structure is simple and Not easily damaged, the design is flexible and user-friendly.

Description of the drawings

Figure 1 is a first perspective three-dimensional structural schematic diagram of the hidden backrest sofa chair proposed by the utility model;

Figure 2 is a schematic three-dimensional structural diagram from a second perspective of the hidden backrest sofa chair proposed by the present utility model;

Figure 3 is a side view of the hidden backrest sofa chair proposed by the present utility model;

Figure 4 is a cross-sectional view of the hidden backrest sofa chair proposed by the present invention before deformation;

Figure 5 is a cross-sectional view of the hidden backrest sofa chair proposed by the present invention during deformation;

Figure 6 is a cross-sectional view of the hidden backrest sofa chair proposed by the present utility model after deformation.

illustration:

1. Sofa backrest; 101. Sliding installation cover one; 2. Sofa base frame; 201. Sliding installation column one; 202. Sliding installation column two; 3. Sofa seat; 301. Sliding installation cover two; 302. Plane protrusion ; 4. Adjust connecting rod one; 5. Rotate the roller; 6. Adjust connecting rod two.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

Referring to Figures 1 to 6, the utility model provides a hidden backrest sofa chair: including a sofa back 1, a sofa base frame 2 is provided on one side of the sofa back 1, the sofa back 1 is slidingly connected to the sofa base frame 2, and the sofa base frame 2 A sofa seat 3 is also slidably connected to the sofa base frame 2. An adjusting link 4 is rotatably connected to the side wall of the sofa base frame 2. One end of the adjusting link 4 is connected to a rotating roller 5 that is in contact with the sofa seat 3. The bottom of the sofa seat 3 is provided with There is a flat protrusion 302, and the rotating roller 5 is constrained by the plane tangency of the lower surface of the flat protrusion 302. In this way, when the flat protrusion 302 moves up and down, it can always remain in contact with the rotating roller 5, and the two will not separate. The other end of 4 is rotatably connected with an adjusting link 2 6 , and one end of the adjusting link 6 away from the adjusting link 1 4 is rotatably connected to the bottom end of the sofa back 1 , in which the adjusting link 1 4 , the adjusting link 2 6 and the rotating roller 5 Referring to the connection shown in Figure 4, the sofa base frame 2 is provided with a frame for installing the adjusting link 14, and the adjusting link 4 is rotatably connected to the corresponding frame side wall through a pin.

Specifically, the sofa base frame 2 is provided with a plurality of sliding installation posts 201 on one side, and a plurality of sliding installation sleeves 101 are provided at the bottom of the sofa back 1. The plurality of sliding installation sleeves 101 are connected to the sliding installation one by one. On the outer surface of column one 201, the adjusting link two 6 is rotatably connected to the bottom side wall of the sliding installation sleeve 101. There are multiple sliding installation columns 202 on one side of the sofa base frame 2, and there are multiple sliding installations on the bottom of the sofa seat 3. Set 2 301, multiple sliding installation sets 2 301 are connected to the outer surface of the sliding installation column 202 in one-to-one correspondence, which can effectively ensure the stability of the sofa back 1 and the sofa seat 3 when they move up and down as a whole.

The functional principle of this utility model can be explained through the following operation methods:

When the sofa chair is in a free state, that is, when there is no load on the surface of the sofa seat 3, its state is as shown in Figure 1. At this time, the sofa seat 3 and the sofa back 1 are in a flush state, and the sofa back 1 is in a hidden state. The sofa The chair is a sofa chair with a hidden backrest.

When someone sits on the sofa seat 3, the sofa seat 3 begins to bear weight. At this time, the sofa seat 3 as a whole begins to move downward. The downwardly moving plane protrusion 302 drives the adjustment link 14 corresponding to the 1st position through the rotating roller 5. One side moves downward. Correspondingly, the other side of the adjusting link 14 pulls the adjusting link 26 to move upward. The adjusting link 26 drives the sofa back 1 to move upward as a whole through the sliding installation cover 101, and the sofa back 1 rises. The status is shown in Figure 5.

After the human body is completely seated on the sofa seat 3, the sofa seat 3 stops moving downward and the sofa back 1 stops rising, as shown in Figure 6. At this time, the sofa back 1 and the sofa seat 3 are misaligned up and down, and the sofa after rising The backrest 1 can effectively support the human body's back and improve the comfort of the human body when sitting or standing.

After the human body stands up from the sofa seat 3, the sofa back 1 slides down along the sliding mounting column 201 under the action of gravity. At this time, the sliding mounting sleeve 101 drives the corresponding side of the adjusting link 2 6 to move downward, and the adjusting link 2 moves downward. The other end of 6 drives the connecting side of the adjusting link 4 to move downward. The other side of the adjusting link 4 pushes the plane protrusion 302 and the sofa seat 3 as a whole to move upward through the rotating roller 5 until the sofa back 1 and the sofa seat 3 are connected. The sofa seat 3 is reset to the flush state shown in Figure 1 for next use. That is, the sofa back 1 in the sofa chair does not need to be raised and lowered deliberately. The overall structural design and simple operation effectively reduce the weight of the sofa chair. usage cost.

Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it is still possible to modify the technical solutions recorded in the foregoing embodiments, or to perform equivalent substitutions on some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model, All should be included in the protection scope of this utility model.

Claims (5)

1. Hidden backrest sofa chair, including a sofa backrest (1), characterized in that: a sofa base frame (2) is provided on one side of the sofa backrest (1), and the sofa backrest (1) and the sofa base frame (2) ) is slidingly connected, and the sofa base frame (2) is also slidably connected to a sofa seat (3). The side wall of the sofa base frame (2) is rotatably connected to an adjusting link (4). The adjusting link One end of one (4) is connected to a rotating roller (5) that is in contact with the sofa seat (3), and the other end of the first (4) adjusting link is connected to a second (6) adjusting link. (6) One end of the adjustment link (4) is rotated away from the bottom of the sofa backrest (1). 2. The hidden backrest sofa chair according to claim 1, characterized in that: the sofa base frame (2) is provided with a plurality of sliding mounting columns (201) on one side, and the sofa backrest (1) is provided with a plurality of sliding mounting posts (201) at the bottom. There are a plurality of sliding mounting sleeves (101), and the sliding sleeves corresponding to the plurality of sliding mounting sleeves (101) are connected to the outer surface of the sliding mounting column (201). 3. The hidden backrest sofa chair according to claim 2, characterized in that: the second adjusting link (6) is rotatably connected to the bottom side wall of the sliding mounting sleeve (101). 4. The hidden backrest sofa chair according to claim 1, characterized in that: one side of the sofa base frame (2) is provided with a plurality of sliding mounting columns (202), and the bottom of the sofa seat (3) A plurality of two sliding installation sleeves (301) are provided, and the plurality of two sliding installation sleeves (301) correspond to one-to-one sliding sleeves and are connected to the outer surface of the sliding installation column two (202). 5. The hidden backrest sofa chair according to claim 1, characterized in that: the bottom of the sofa seat (3) is provided with a planar protrusion (302), and the rotating roller (5) and the planar protrusion (302) )Tangential constraints on the lower surface plane.