Adjustable sofa

Abstract

The utility model discloses an adjustable sofa which comprises two handrails, a seat surface and a backrest, the seat surface is fixed between the two handrails, the backrest is rotatably mounted between the two handrails, a first support rod is arranged between the two handrails, the backrest extends to the lower part of the seat surface, and a second support rod is arranged between the two handrails. A telescopic piece is arranged between the first supporting rod and the side, extending to the position below the seat face, of the backrest, and the telescopic piece is rotationally connected with the first supporting rod and the backrest. The backrest is rotationally connected with the armrests, meanwhile, part of the backrest extends to the position below the seat face and is connected with the first supporting rod for supporting the seat face through the telescopic piece, the angle can be adjusted by rotating the backrest, the backrest can be kept at the current angle through stretching of the telescopic piece, the overall structure is simple, and angle adjustment is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of sofas, and more specifically, to an adjustable sofa. Background Art

[0002] The Chinese invention with publication number CN107048827A discloses an adjustable backrest sofa, comprising a sofa fixing seat and a sofa bracket arranged on the sofa fixing seat, armrests, a seat cushion, a backrest, a headrest, a driving device and a control device, wherein the driving device and the control device are electrically connected, the sofa bracket comprises a fixing rod, a first swing rod, a second swing rod, a first connecting rod, a second connecting rod, a third connecting rod and a positioning rod, the backrest is arranged on the first swing rod, the headrest is arranged on the top of the sofa fixing seat, an elastic connecting component is arranged between the top of the backrest and the bottom of the headrest, the control device comprises a swing control component, a positioning control component and a central processing component, the swing control component is connected to the fixed end of the first swing rod, the positioning control component is connected to the positioning shaft of the positioning rod, and the swing control component and the positioning control component are electrically connected to the central processing component respectively.

[0003] In the above-mentioned sofa with adjustable backrest, its overall structure is relatively complex, and the backrest angle is adjusted by electronic control. The sofa as a whole is heavy and costly. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an adjustable sofa with a simple structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model discloses an adjustable sofa, comprising two armrests, a seat and a backrest, wherein the seat is fixed between the two armrests, the backrest is rotatably installed between the two armrests, a first support rod is arranged between the two armrests, the backrest extends to the bottom of the seat, a telescopic member is arranged between the first support rod and a side of the backrest extending to the bottom of the seat, and the telescopic member is rotatably connected to the first support rod and the backrest.

[0007] Furthermore, a rotatable footrest is provided between the two armrests, and the rotation of the backrest drives the footrest to rotate.

[0008] Furthermore, a connecting rod is provided between the footrest and the side of the backrest extending below the seat surface, and the connecting rod is rotatably connected to both the telescopic member and the backrest.

[0009] Furthermore, the armrest includes a first frame, a second frame and a third frame, the first frame and the top of the second frame are connected through the third frame, a second support rod is arranged between the first frame and the second frame, and the first support rod connects the second support rods of the two armrests.

[0010] Furthermore, the backrest is rotatably connected to the second support rod.

[0011] Furthermore, the height of the first frame is greater than the height of the second frame, and the footrest is rotatably connected to the first frame.

[0012] The beneficial effects of the utility model are:

[0013] 1. The backrest is rotatably connected to the armrest, and part of the backrest extends to the bottom of the seat and is connected to the first support rod supporting the seat through a telescopic member. The angle can be adjusted by rotating the backrest, and the backrest can be kept at the current angle by the extension of the telescopic member. The overall structure is simple and the angle adjustment is convenient.

[0014] 2. The backrest is connected to the footrest through a connecting rod, and the footrest is rotatably connected to the armrest, so that the rotation of the backrest can drive the rotation of the footrest, so that the footrest can be expanded in accordance with the angle of the backrest, so that the sofa can switch between sitting and lying positions according to the needs of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the overall structure of the sofa in this embodiment;

[0016] Figure 2 This is a schematic diagram of the internal structure of the sofa;

[0017] Figure 3 This is a schematic diagram of the structure of the sofa when it is folded;

[0018] Figure 4 This is a schematic diagram of the structure of the sofa when it is unfolded;

[0019] Reference numerals: armrest 100 , first frame 110 , second frame 120 , third frame 130 , second support rod 140 , seat 200 , first support rod 210 , backrest 300 , telescopic member 310 , connecting rod 320 , footrest 400 . DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 4 An adjustable sofa includes two armrests 100, and two first support rods 210 are arranged between the two first armrests 100. Each armrest 100 is composed of a first frame 110, a second frame 120 and a third frame 130. The third frame 130 connects the tops of the first frame 110 and the second frame 120. A second support rod 140 is connected between the first frame 110 and the second frame 120, and two second support rods 140 are respectively connected at both ends of the first support rod 210 to fix the first support rod 210 to the armrest 100, and a seat surface 200 is installed on the two first support rods 210, so that the seat surface 200 is fixed to the armrest 100.

[0022] The first frame 110 and the second frame 120 are the parts in contact with the ground, and the bottom surfaces thereof are provided with supporting feet. The height of the first frame 110 is greater than that of the second frame 120, so that the third frame 130 is tilted downward from the end where the first frame 110 is located toward the end where the second frame 120 is located, so that the side where the first frame 110 is located is used as the front of the sofa, and the side where the second frame 120 is located is used as the back of the sofa. A backrest 300 is rotatably connected between the ends of the two second support rods 140 close to the second frame 120, and the rotation connection point of the backrest 300 and the second frame 120 is closer than the distance between the first support rod 210 close to the second frame 120 and the second frame 120, so that part of the backrest 300 extends to the bottom of the seat surface 200 here.

[0023] A telescopic member 310 is provided below the seat surface 200. A bracket is provided on the first support rod 210 near the first frame 110, and one end of the telescopic member 310 is rotatably connected to the bracket of the first support rod 210 so that the telescopic member 310 can rotate relative to the first support rod 210 near the first frame 110. At the same time, a bracket is also provided on one end of the backrest 300 extending below the seat surface 200, and the other end of the telescopic member 310 is rotatably connected to the bracket of the backrest 300 so that the telescopic member 310 can rotate relative to the backrest 300. The telescopic member 310 is a gas spring, and when the backrest 300 is rotated to adjust the angle of the backrest 300, the gas spring can play a supporting role to keep the backrest 300 at a predetermined angle.

[0024] Meanwhile, a footrest 400 is provided between the two first frames 110. The top of the footrest 400 is rotatably connected to the first frame 110 so that the footrest 400 can be flush with multiple surfaces when fully unfolded. The footrest 400 is connected to the side of the backrest 300 extending below the seat surface 200 through a connecting rod 320. The two ends of the connecting rod 320 are rotatably connected to the backrest 300 and the footrest 400 respectively, so that the rotation of the backrest 300 can drive the rotation of the footrest 400.

[0025] When the sofa is in the folded state, the footrest 400 is flush with the first frame 110. When the sofa is unfolded, the backrest 300 is rotated to increase the angle between the backrest 300 and the seat surface 200, and the upper end of the backrest 300 is moved backward and the lower end of the backrest 300 is moved forward with the connection point of the backrest 300 and the second support rod 140 as the fulcrum, thereby pushing the connecting rod 320 to move forward, and the movement of the connecting rod 320 can push the footrest 400 to rotate forward, so that the footrest 400 is unfolded until the footrest 400 is flush with the plane where the seat surface 200 is located.

[0026] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An adjustable sofa, characterized in that: The invention comprises two armrests (100), a seat (200) and a backrest (300), wherein the seat (200) is fixed between the two armrests (100), and the backrest (300) is rotatably installed between the two armrests (100). A first support rod (210) is arranged between the two armrests (100), and the backrest (300) extends to the bottom of the seat (200). A telescopic member (310) is arranged between the first support rod (210) and the side of the backrest (300) extending to the bottom of the seat (200), and the telescopic member (310) is rotatably connected to the first support rod (210) and the backrest (300).

2. The adjustable sofa according to claim 1, characterized in that: A rotatable footrest (400) is provided between the two armrests (100), and the rotation of the backrest (300) drives the footrest (400) to rotate.

3. The adjustable sofa according to claim 2, characterized in that: A connecting rod (320) is provided between the footrest (400) and the side of the backrest (300) extending below the seat surface (200), and the connecting rod (320) is rotatably connected to both the telescopic member (310) and the backrest (300).

4. The adjustable sofa according to claim 2, characterized in that: The handrail (100) comprises a first frame (110), a second frame (120) and a third frame (130); the tops of the first frame (110) and the second frame (120) are connected via the third frame (130); a second support rod (140) is arranged between the first frame (110) and the second frame (120); and the first support rod (210) connects the second support rods (140) of the two handrails (100).

5. The adjustable sofa according to claim 4, characterized in that: The backrest (300) is rotatably connected to the second support rod (140).

6. The adjustable sofa according to claim 4, characterized in that: The height of the first frame (110) is greater than the height of the second frame (120), and the footrest (400) is rotatably connected to the first frame (110).

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